+++ /dev/null
- The Catharon Open Source LICENSE
- ----------------------------
-
- 2000-Jul-04
-
- Copyright (C) 2000 by Catharon Productions, Inc.
-
-
-
-Introduction
-============
-
- This license applies to source files distributed by Catharon
- Productions, Inc. in several archive packages. This license
- applies to all files found in such packages which do not fall
- under their own explicit license.
-
- This license was inspired by the BSD, Artistic, and IJG
- (Independent JPEG Group) licenses, which all encourage inclusion
- and use of free software in commercial and freeware products
- alike. As a consequence, its main points are that:
-
- o We don't promise that this software works. However, we are
- interested in any kind of bug reports. (`as is' distribution)
-
- o You can use this software for whatever you want, in parts or
- full form, without having to pay us. (`royalty-free' usage)
-
- o You may not pretend that you wrote this software. If you use
- it, or only parts of it, in a program, you must acknowledge
- somewhere in your documentation that you have used the
- Catharon Code. (`credits')
-
- We specifically permit and encourage the inclusion of this
- software, with or without modifications, in commercial products.
- We disclaim all warranties covering the packages distributed by
- Catharon Productions, Inc. and assume no liability related to
- their use.
-
-
-Legal Terms
-===========
-
-0. Definitions
---------------
-
- Throughout this license, the terms `Catharon Package', `package',
- and `Catharon Code' refer to the set of files originally
- distributed by Catharon Productions, Inc.
-
- `You' refers to the licensee, or person using the project, where
- `using' is a generic term including compiling the project's source
- code as well as linking it to form a `program' or `executable'.
- This program is referred to as `a program using one of the
- Catharon Packages'.
-
- This license applies to all files distributed in the original
- Catharon Package(s), including all source code, binaries and
- documentation, unless otherwise stated in the file in its
- original, unmodified form as distributed in the original archive.
- If you are unsure whether or not a particular file is covered by
- this license, you must contact us to verify this.
-
- The Catharon Packages are copyright (C) 2000 by Catharon
- Productions, Inc. All rights reserved except as specified below.
-
-1. No Warranty
---------------
-
- THE CATHARON PACKAGES ARE PROVIDED `AS IS' WITHOUT WARRANTY OF ANY
- KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- PURPOSE. IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS
- BE LIABLE FOR ANY DAMAGES CAUSED BY THE USE OF OR THE INABILITY TO
- USE THE CATHARON PACKAGE.
-
-2. Redistribution
------------------
-
- This license grants a worldwide, royalty-free, perpetual and
- irrevocable right and license to use, execute, perform, compile,
- display, copy, create derivative works of, distribute and
- sublicense the Catharon Packages (in both source and object code
- forms) and derivative works thereof for any purpose; and to
- authorize others to exercise some or all of the rights granted
- herein, subject to the following conditions:
-
- o Redistribution of source code must retain this license file
- (`license.txt') unaltered; any additions, deletions or changes
- to the original files must be clearly indicated in
- accompanying documentation. The copyright notices of the
- unaltered, original files must be preserved in all copies of
- source files.
-
- o Redistribution in binary form must provide a disclaimer that
- states that the software is based in part on the work of
- Catharon Productions, Inc. in the distribution documentation.
-
- These conditions apply to any software derived from or based on
- the Catharon Packages, not just the unmodified files. If you use
- our work, you must acknowledge us. However, no fee need be paid
- to us.
-
-3. Advertising
---------------
-
- Neither Catharon Productions, Inc. and contributors nor you shall
- use the name of the other for commercial, advertising, or
- promotional purposes without specific prior written permission.
-
- We suggest, but do not require, that you use the following phrase
- to refer to this software in your documentation: 'this software is
- based in part on the Catharon Typography Project'.
-
- As you have not signed this license, you are not required to
- accept it. However, as the Catharon Packages are copyrighted
- material, only this license, or another one contracted with the
- authors, grants you the right to use, distribute, and modify it.
- Therefore, by using, distributing, or modifying the Catharon
- Packages, you indicate that you understand and accept all the
- terms of this license.
-
---- end of license.txt ---
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahangles.h */
-/* */
-/* A routine used to compute vector angles with limited accuracy */
-/* and very high speed (body). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahangles.h"
-
-#else
-
-#include <autohint/ahangles.h>
-
-#endif
-
-
- /* the following table has been automatically generated with */
- /* the `mather.py' Python script */
-
- const AH_Angle ah_arctan[1L << AH_ATAN_BITS] =
- {
- 0, 0, 1, 1, 1, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 5,
- 5, 5, 6, 6, 6, 7, 7, 7,
- 8, 8, 8, 9, 9, 9, 10, 10,
- 10, 10, 11, 11, 11, 12, 12, 12,
- 13, 13, 13, 14, 14, 14, 14, 15,
- 15, 15, 16, 16, 16, 17, 17, 17,
- 18, 18, 18, 18, 19, 19, 19, 20,
- 20, 20, 21, 21, 21, 21, 22, 22,
- 22, 23, 23, 23, 24, 24, 24, 24,
- 25, 25, 25, 26, 26, 26, 26, 27,
- 27, 27, 28, 28, 28, 28, 29, 29,
- 29, 30, 30, 30, 30, 31, 31, 31,
- 31, 32, 32, 32, 33, 33, 33, 33,
- 34, 34, 34, 34, 35, 35, 35, 35,
- 36, 36, 36, 36, 37, 37, 37, 38,
- 38, 38, 38, 39, 39, 39, 39, 40,
- 40, 40, 40, 41, 41, 41, 41, 42,
- 42, 42, 42, 42, 43, 43, 43, 43,
- 44, 44, 44, 44, 45, 45, 45, 45,
- 46, 46, 46, 46, 46, 47, 47, 47,
- 47, 48, 48, 48, 48, 48, 49, 49,
- 49, 49, 50, 50, 50, 50, 50, 51,
- 51, 51, 51, 51, 52, 52, 52, 52,
- 52, 53, 53, 53, 53, 53, 54, 54,
- 54, 54, 54, 55, 55, 55, 55, 55,
- 56, 56, 56, 56, 56, 57, 57, 57,
- 57, 57, 57, 58, 58, 58, 58, 58,
- 59, 59, 59, 59, 59, 59, 60, 60,
- 60, 60, 60, 61, 61, 61, 61, 61,
- 61, 62, 62, 62, 62, 62, 62, 63,
- 63, 63, 63, 63, 63, 64, 64, 64
- };
-
-
- LOCAL_FUNC
- AH_Angle ah_angle( FT_Vector* v )
- {
- FT_Pos dx, dy;
- AH_Angle angle;
-
-
- dx = v->x;
- dy = v->y;
-
- /* check trivial cases */
- if ( dy == 0 )
- {
- angle = 0;
- if ( dx < 0 )
- angle = AH_PI;
- return angle;
- }
- else if ( dx == 0 )
- {
- angle = AH_HALF_PI;
- if ( dy < 0 )
- angle = -AH_HALF_PI;
- return angle;
- }
-
- angle = 0;
- if ( dx < 0 )
- {
- dx = -v->x;
- dy = -v->y;
- angle = AH_PI;
- }
-
- if ( dy < 0 )
- {
- FT_Pos tmp;
-
-
- tmp = dx;
- dx = -dy;
- dy = tmp;
- angle -= AH_HALF_PI;
- }
-
- if ( dx == 0 && dy == 0 )
- return 0;
-
- if ( dx == dy )
- angle += AH_PI / 4;
- else if ( dx > dy )
- angle += ah_arctan[FT_DivFix( dy, dx ) >> ( 16 - AH_ATAN_BITS )];
- else
- angle += AH_HALF_PI -
- ah_arctan[FT_DivFix( dx, dy ) >> ( 16 - AH_ATAN_BITS )];
-
- if ( angle > AH_PI )
- angle -= AH_2PI;
-
- return angle;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahangles.h */
-/* */
-/* A routine used to compute vector angles with limited accuracy */
-/* and very high speed (specification). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHANGLES_H
-#define AHANGLES_H
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahtypes.h"
-
-#else
-
-#include <autohint/ahtypes.h>
-
-#endif
-
-
-#include <freetype/internal/ftobjs.h>
-
-
- /* PI expressed in ah_angles -- we don't really need an important */
- /* precision, so 256 should be enough */
-#define AH_PI 256
-#define AH_2PI ( AH_PI * 2 )
-#define AH_HALF_PI ( AH_PI / 2 )
-#define AH_2PIMASK ( AH_2PI - 1 )
-
- /* the number of bits used to express an arc tangent; */
- /* see the structure of the lookup table */
-#define AH_ATAN_BITS 8
-
- extern
- const AH_Angle ah_arctan[1L << AH_ATAN_BITS];
-
-
- LOCAL_DEF
- AH_Angle ah_angle( FT_Vector* v );
-
-
-#endif /* AHANGLES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahglobal.c */
-/* */
-/* Routines used to compute global metrics automatically (body). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahglobal.h"
-#include "ahglyph.h"
-
-#else
-
-#include <autohint/ahglobal.h>
-#include <autohint/ahglyph.h>
-
-#endif
-
-
-#define MAX_TEST_CHARACTERS 12
-
- static
- const char* blue_chars[ah_blue_max] =
- {
- "THEZOCQS",
- "HEZLOCUS",
- "xzroesc",
- "xzroesc",
- "pqgjy"
- };
-
-
- /* simple insertion sort */
- static
- void sort_values( FT_Int count,
- FT_Pos* table )
- {
- FT_Int i, j, swap;
-
-
- for ( i = 1; i < count; i++ )
- {
- for ( j = i; j > 1; j-- )
- {
- if ( table[j] > table[j - 1] )
- break;
-
- swap = table[j];
- table[j] = table[j - 1];
- table[j - 1] = swap;
- }
- }
- }
-
-
- static
- FT_Error ah_hinter_compute_blues( AH_Hinter* hinter )
- {
- AH_Blue blue;
- AH_Globals* globals = &hinter->globals->design;
- FT_Pos flats [MAX_TEST_CHARACTERS];
- FT_Pos rounds[MAX_TEST_CHARACTERS];
- FT_Int num_flats;
- FT_Int num_rounds;
-
- FT_Face face;
- FT_GlyphSlot glyph;
- FT_Error error;
- FT_CharMap charmap;
-
-
- face = hinter->face;
- glyph = face->glyph;
-
- /* save current charmap */
- charmap = face->charmap;
-
- /* do we have a Unicode charmap in there? */
- error = FT_Select_Charmap( face, ft_encoding_unicode );
- if ( error )
- goto Exit;
-
- /* we compute the blues simply by loading each character from the */
- /* 'blue_chars[blues]' string, then compute its top-most and */
- /* bottom-most points */
-
- AH_LOG(( "blue zones computation\n" ));
- AH_LOG(( "------------------------------------------------\n" ));
-
- for ( blue = ah_blue_capital_top; blue < ah_blue_max; blue++ )
- {
- const char* p = blue_chars[blue];
- const char* limit = p + MAX_TEST_CHARACTERS;
- FT_Pos *blue_ref, *blue_shoot;
-
-
- AH_LOG(( "blue %3d: ", blue ));
-
- num_flats = 0;
- num_rounds = 0;
-
- for ( ; p < limit; p++ )
- {
- FT_UInt glyph_index;
- FT_Vector* extremum;
- FT_Vector* points;
- FT_Vector* point_limit;
- FT_Vector* point;
- FT_Bool round;
-
-
- /* exit if we reach the end of the string */
- if ( !*p )
- break;
-
- AH_LOG(( "`%c'", *p ));
-
- /* load the character in the face -- skip unknown or empty ones */
- glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
- if ( glyph_index == 0 )
- continue;
-
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error || glyph->outline.n_points <= 0 )
- continue;
-
- /* now compute min or max point indices and coordinates */
- points = glyph->outline.points;
- point_limit = points + glyph->outline.n_points;
- point = points;
- extremum = point;
- point++;
-
- if ( AH_IS_TOP_BLUE( blue ) )
- {
- for ( ; point < point_limit; point++ )
- if ( point->y > extremum->y )
- extremum = point;
- }
- else
- {
- for ( ; point < point_limit; point++ )
- if ( point->y < extremum->y )
- extremum = point;
- }
-
- AH_LOG(( "%5d", (int)extremum->y ));
-
- /* now, check whether the point belongs to a straight or round */
- /* segment; we first need to find in which contour the extremum */
- /* lies, then see its previous and next points */
- {
- FT_Int index = extremum - points;
- FT_Int n;
- FT_Int first, last, prev, next, end;
- FT_Pos dist;
-
-
- last = -1;
- first = 0;
-
- for ( n = 0; n < glyph->outline.n_contours; n++ )
- {
- end = glyph->outline.contours[n];
- if ( end >= index )
- {
- last = end;
- break;
- }
- first = end + 1;
- }
-
- /* XXX: should never happen! */
- if ( last < 0 )
- continue;
-
- /* now look for the previous and next points that are not on the */
- /* same Y coordinate. Threshold the `closeness'... */
-
- prev = index;
- next = prev;
-
- do
- {
- if ( prev > first )
- prev--;
- else
- prev = last;
-
- dist = points[prev].y - extremum->y;
- if ( dist < -5 || dist > 5 )
- break;
-
- } while ( prev != index );
-
- do
- {
- if ( next < last )
- next++;
- else
- next = first;
-
- dist = points[next].y - extremum->y;
- if ( dist < -5 || dist > 5 )
- break;
-
- } while ( next != index );
-
- /* now, set the `round' flag depending on the segment's kind */
- round =
- FT_CURVE_TAG( glyph->outline.tags[prev] ) != FT_Curve_Tag_On ||
- FT_CURVE_TAG( glyph->outline.tags[next] ) != FT_Curve_Tag_On ;
-
- AH_LOG(( "%c ", round ? 'r' : 'f' ));
- }
-
- if ( round )
- rounds[num_rounds++] = extremum->y;
- else
- flats[num_flats++] = extremum->y;
- }
-
- AH_LOG(( "\n" ));
-
- /* we have computed the contents of the `rounds' and `flats' tables, */
- /* now determine the reference and overshoot position of the blue; */
- /* we simply take the median value after a simple short */
- sort_values( num_rounds, rounds );
- sort_values( num_flats, flats );
-
- blue_ref = globals->blue_refs + blue;
- blue_shoot = globals->blue_shoots + blue;
- if ( num_flats == 0 && num_rounds == 0 )
- {
- *blue_ref = -10000;
- *blue_shoot = -10000;
- }
- else if ( num_flats == 0 )
- {
- *blue_ref =
- *blue_shoot = rounds[num_rounds / 2];
- }
- else if ( num_rounds == 0 )
- {
- *blue_ref =
- *blue_shoot = flats[num_flats / 2];
- }
- else
- {
- *blue_ref = flats[num_flats / 2];
- *blue_shoot = rounds[num_rounds / 2];
- }
-
- /* there are sometimes problems: if the overshoot position of top */
- /* zones is under its reference position, or the opposite for bottom */
- /* zones. We must thus check everything there and correct the errors */
- if ( *blue_shoot != *blue_ref )
- {
- FT_Pos ref = *blue_ref;
- FT_Pos shoot = *blue_shoot;
- FT_Bool over_ref = ( shoot > ref );
-
-
- if ( AH_IS_TOP_BLUE( blue ) ^ over_ref )
- *blue_shoot = *blue_ref = ( shoot + ref ) / 2;
- }
-
- AH_LOG(( "-- ref = %ld, shoot = %ld\n", *blue_ref, *blue_shoot ));
- }
-
- /* reset original face charmap */
- FT_Set_Charmap( face, charmap );
- error = 0;
-
- Exit:
- return error;
- }
-
-
- static
- FT_Error ah_hinter_compute_widths( AH_Hinter* hinter )
- {
- /* scan the array of segments in each direction */
- AH_Outline* outline = hinter->glyph;
- AH_Segment* segments;
- AH_Segment* limit;
- AH_Globals* globals = &hinter->globals->design;
- FT_Pos* widths;
- FT_Int dimension;
- FT_Int* p_num_widths;
- FT_Error error = 0;
- FT_Pos edge_distance_threshold = 32000;
-
-
- globals->num_widths = 0;
- globals->num_heights = 0;
-
- /* For now, compute the standard width and height from the `o' */
- /* character. I started computing the stem width of the `i' and the */
- /* stem height of the "-", but it wasn't too good. Moreover, we now */
- /* have a single character that gives us standard width and height. */
- {
- FT_UInt glyph_index;
-
-
- glyph_index = FT_Get_Char_Index( hinter->face, 'o' );
- if ( glyph_index == 0 )
- return 0;
-
- error = FT_Load_Glyph( hinter->face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error )
- goto Exit;
-
- error = ah_outline_load( hinter->glyph, hinter->face );
- if ( error )
- goto Exit;
-
- ah_outline_compute_segments( hinter->glyph );
- ah_outline_link_segments( hinter->glyph );
- }
-
- segments = outline->horz_segments;
- limit = segments + outline->num_hsegments;
- widths = globals->heights;
- p_num_widths = &globals->num_heights;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Segment* seg = segments;
- AH_Segment* link;
- FT_Int num_widths = 0;
-
-
- for ( ; seg < limit; seg++ )
- {
- link = seg->link;
- /* we only consider stem segments there! */
- if ( link && link->link == seg && link > seg )
- {
- FT_Int dist;
-
-
- dist = seg->pos - link->pos;
- if ( dist < 0 )
- dist = -dist;
-
- if ( num_widths < 12 )
- widths[num_widths++] = dist;
- }
- }
-
- sort_values( num_widths, widths );
- *p_num_widths = num_widths;
-
- /* we will now try to find the smallest width */
- if ( num_widths > 0 && widths[0] < edge_distance_threshold )
- edge_distance_threshold = widths[0];
-
- segments = outline->vert_segments;
- limit = segments + outline->num_vsegments;
- widths = globals->widths;
- p_num_widths = &globals->num_widths;
-
- }
-
- /* Now, compute the edge distance threshold as a fraction of the */
- /* smallest width in the font. Set it in `hinter.glyph' too! */
- if ( edge_distance_threshold == 32000 )
- edge_distance_threshold = 50;
-
- /* let's try 20% */
- hinter->glyph->edge_distance_threshold = edge_distance_threshold / 5;
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- FT_Error ah_hinter_compute_globals( AH_Hinter* hinter )
- {
- return ah_hinter_compute_widths( hinter ) ||
- ah_hinter_compute_blues ( hinter );
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahglobal.h */
-/* */
-/* Routines used to compute global metrics automatically */
-/* (specification). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHGLOBAL_H
-#define AHGLOBAL_H
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahtypes.h"
-
-#else
-
-#include <autohint/ahtypes.h>
-
-#endif
-
-
-#include <freetype/internal/ftobjs.h> /* for LOCAL_DEF/LOCAL_FUNC */
-
-
-#define AH_IS_TOP_BLUE( b ) ( (b) == ah_blue_capital_top || \
- (b) == ah_blue_small_top )
-
-
- /* compute global metrics automatically */
- LOCAL_DEF
- FT_Error ah_hinter_compute_globals( AH_Hinter* hinter );
-
-
-#endif /* AHGLOBAL_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahglyph.c */
-/* */
-/* Routines used to load and analyze a given glyph before hinting */
-/* (body). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahglyph.h"
-#include "ahangles.h"
-#include "ahglobal.h"
-
-#else
-
-#include <autohint/ahglyph.h>
-#include <autohint/ahangles.h>
-#include <autohint/ahglobal.h>
-
-#endif
-
-
-#include <stdio.h>
-
-
-#define xxxAH_DEBUG_GLYPH
-
-
- /* compute the direction value of a given vector.. */
- static
- AH_Direction ah_compute_direction( FT_Pos dx,
- FT_Pos dy )
- {
- AH_Direction dir;
- FT_Pos ax = ABS( dx );
- FT_Pos ay = ABS( dy );
-
-
- dir = ah_dir_none;
-
- /* test for vertical direction */
- if ( ax * 12 < ay )
- {
- dir = dy > 0 ? ah_dir_up : ah_dir_down;
- }
- /* test for horizontal direction */
- else if ( ay * 12 < ax )
- {
- dir = dx > 0 ? ah_dir_right : ah_dir_left;
- }
-
- return dir;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_new */
- /* */
- /* <Description> */
- /* Creates a new and empty AH_Outline object. */
- /* */
- LOCAL_FUNC
- FT_Error ah_outline_new( FT_Memory memory,
- AH_Outline** aoutline )
- {
- FT_Error error;
- AH_Outline* outline;
-
-
- if ( !ALLOC( outline, sizeof ( *outline ) ) )
- {
- outline->memory = memory;
- *aoutline = outline;
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_done */
- /* */
- /* <Description> */
- /* Destroys a given AH_Outline object. */
- /* */
- LOCAL_FUNC
- void ah_outline_done( AH_Outline* outline )
- {
- FT_Memory memory = outline->memory;
-
-
- FREE( outline->horz_edges );
- FREE( outline->horz_segments );
- FREE( outline->contours );
- FREE( outline->points );
-
- FREE( outline );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_save */
- /* */
- /* <Description> */
- /* Saves the content of a given AH_Outline object into a face's glyph */
- /* slot. */
- /* */
- LOCAL_FUNC
- void ah_outline_save( AH_Outline* outline,
- AH_Loader* gloader )
- {
- AH_Point* point = outline->points;
- AH_Point* limit = point + outline->num_points;
- FT_Vector* vec = gloader->current.outline.points;
- char* tag = gloader->current.outline.tags;
-
-
- /* we assume that the glyph loader has already been checked for storage */
- for ( ; point < limit; point++, vec++, tag++ )
- {
- vec->x = point->x;
- vec->y = point->y;
-
- if ( point->flags & ah_flah_conic )
- tag[0] = FT_Curve_Tag_Conic;
- else if ( point->flags & ah_flah_cubic )
- tag[0] = FT_Curve_Tag_Cubic;
- else
- tag[0] = FT_Curve_Tag_On;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_load */
- /* */
- /* <Description> */
- /* Loads an unscaled outline from a glyph slot into an AH_Outline */
- /* object. */
- /* */
- LOCAL_FUNC
- FT_Error ah_outline_load( AH_Outline* outline,
- FT_Face face )
- {
- FT_Memory memory = outline->memory;
- FT_Error error = FT_Err_Ok;
- FT_Outline* source = &face->glyph->outline;
- FT_Int num_points = source->n_points;
- FT_Int num_contours = source->n_contours;
- AH_Point* points;
-
-
- /* check arguments */
- if ( !face ||
- !face->size ||
- face->glyph->format != ft_glyph_format_outline )
- return FT_Err_Invalid_Argument;
-
- /* first of all, reallocate the contours array if necessary */
- if ( num_contours > outline->max_contours )
- {
- FT_Int new_contours = ( num_contours + 3 ) & -4;
-
-
- if ( REALLOC_ARRAY( outline->contours, outline->max_contours,
- new_contours, AH_Point* ) )
- goto Exit;
-
- outline->max_contours = new_contours;
- }
-
- /* then, realloc the points, segments & edges arrays if needed */
- if ( num_points > outline->max_points )
- {
- FT_Int news = ( num_points + 7 ) & -8;
- FT_Int max = outline->max_points;
-
-
- if ( REALLOC_ARRAY( outline->points, max, news, AH_Point ) ||
- REALLOC_ARRAY( outline->horz_edges, max, news, AH_Edge ) ||
- REALLOC_ARRAY( outline->horz_segments, max, news, AH_Segment ) )
- goto Exit;
-
- /* readjust some pointers */
- outline->vert_edges = outline->horz_edges + ( news >> 1 );
- outline->vert_segments = outline->horz_segments + ( news >> 1 );
- outline->max_points = news;
- }
-
- outline->num_points = num_points;
- outline->num_contours = num_contours;
-
- outline->num_hedges = 0;
- outline->num_vedges = 0;
- outline->num_hsegments = 0;
- outline->num_vsegments = 0;
-
- /* Compute the vertical and horizontal major directions; this is */
- /* currently done by inspecting the `ft_outline_reverse_fill' flag. */
- /* However, some fonts have improper glyphs, and it'd be a good idea */
- /* to be able to re-compute these values on the fly. */
- outline->vert_major_dir = ah_dir_up;
- outline->horz_major_dir = ah_dir_left;
-
- if ( source->flags & ft_outline_reverse_fill )
- {
- outline->vert_major_dir = ah_dir_down;
- outline->horz_major_dir = ah_dir_right;
- }
-
- outline->x_scale = face->size->metrics.x_scale;
- outline->y_scale = face->size->metrics.y_scale;
-
- points = outline->points;
-
- {
- /* do one thing at a time -- it is easier to understand, and */
- /* the code is clearer */
- AH_Point* point = points;
- AH_Point* limit = point + outline->num_points;
-
-
- /* compute coordinates */
- {
- FT_Vector* vec = source->points;
- FT_Fixed x_scale = outline->x_scale;
- FT_Fixed y_scale = outline->y_scale;
-
-
- for (; point < limit; vec++, point++ )
- {
- point->fx = vec->x;
- point->fy = vec->y;
- point->ox = point->x = FT_MulFix( vec->x, x_scale );
- point->oy = point->y = FT_MulFix( vec->y, y_scale );
-
- point->flags = 0;
- }
- }
-
- /* compute Bezier flags */
- {
- char* tag = source->tags;
-
-
- for ( point = points; point < limit; point++, tag++ )
- {
- switch ( FT_CURVE_TAG( *tag ) )
- {
- case FT_Curve_Tag_Conic:
- point->flags = ah_flah_conic; break;
- case FT_Curve_Tag_Cubic:
- point->flags = ah_flah_cubic; break;
- default:
- ;
- }
- }
- }
-
- /* compute `next' and `prev' */
- {
- FT_Int contour_index;
- AH_Point* prev;
- AH_Point* first;
- AH_Point* end;
-
-
- contour_index = 0;
-
- first = points;
- end = points + source->contours[0];
- prev = end;
-
- for ( point = points; point < limit; point++ )
- {
- point->prev = prev;
- if ( point < end )
- {
- point->next = point + 1;
- prev = point;
- }
- else
- {
- point->next = first;
- contour_index++;
- if ( point + 1 < limit )
- {
- end = points + source->contours[contour_index];
- first = point + 1;
- prev = end;
- }
- }
- }
- }
-
- /* set-up the contours array */
- {
- AH_Point** contour = outline->contours;
- AH_Point** limit = contour + outline->num_contours;
- short* end = source->contours;
- short index = 0;
-
-
- for ( ; contour < limit; contour++, end++ )
- {
- contour[0] = points + index;
- index = end[0] + 1;
- }
- }
-
- /* compute directions of in & out vectors */
- {
- for ( point = points; point < limit; point++ )
- {
- AH_Point* prev;
- AH_Point* next;
- FT_Vector vec;
-
-
- prev = point->prev;
- vec.x = point->fx - prev->fx;
- vec.y = point->fy - prev->fy;
-
- point->in_dir = ah_compute_direction( vec.x, vec.y );
-
-#ifndef AH_OPTION_NO_WEAK_INTERPOLATION
- point->in_angle = ah_angle( &vec );
-#endif
-
- next = point->next;
- vec.x = next->fx - point->fx;
- vec.y = next->fy - point->fy;
-
- point->out_dir = ah_compute_direction( vec.x, vec.y );
-
-#ifndef AH_OPTION_NO_WEAK_INTERPOLATION
- point->out_angle = ah_angle( &vec );
-
- {
- AH_Angle delta = point->in_angle - point->out_angle;
-
-
- if ( delta < 0 )
- delta = -delta;
- if ( delta < 2 )
- point->flags |= ah_flah_weak_interpolation;
- }
-
-#if 0
- if ( point->flags & ( ah_flah_conic | ah_flah_cubic ) )
- point->flags |= ah_flah_weak_interpolation;
-#endif
-
-#endif /* !AH_OPTION_NO_WEAK_INTERPOLATION */
-
-#ifdef AH_OPTION_NO_STRONG_INTERPOLATION
- point->flags |= ah_flah_weak_interpolation;
-#endif
- }
- }
- }
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- void ah_setup_uv( AH_Outline* outline,
- AH_UV source )
- {
- AH_Point* point = outline->points;
- AH_Point* limit = point + outline->num_points;
-
-
- for ( ; point < limit; point++ )
- {
- FT_Pos u, v;
-
-
- switch ( source )
- {
- case ah_uv_fxy:
- u = point->fx;
- v = point->fy;
- break;
- case ah_uv_fyx:
- u = point->fy;
- v = point->fx;
- break;
- case ah_uv_oxy:
- u = point->ox;
- v = point->oy;
- break;
- case ah_uv_oyx:
- u = point->oy;
- v = point->ox;
- break;
- case ah_uv_yx:
- u = point->y;
- v = point->x;
- break;
- case ah_uv_ox:
- u = point->x;
- v = point->ox;
- break;
- case ah_uv_oy:
- u = point->y;
- v = point->oy;
- break;
- default:
- u = point->x;
- v = point->y;
- break;
- }
- point->u = u;
- point->v = v;
- }
- }
-
-
- LOCAL_FUNC
- void ah_outline_compute_segments( AH_Outline* outline )
- {
- int dimension;
- AH_Segment* segments;
- FT_Int* p_num_segments;
- AH_Direction segment_dir;
- AH_Direction major_dir;
-
-
- segments = outline->horz_segments;
- p_num_segments = &outline->num_hsegments;
- major_dir = ah_dir_right; /* This value must be positive! */
- segment_dir = major_dir;
-
- /* set up (u,v) in each point */
- ah_setup_uv( outline, ah_uv_fyx );
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Point** contour = outline->contours;
- AH_Point** contour_limit = contour + outline->num_contours;
- AH_Segment* segment = segments;
- FT_Int num_segments = 0;
-
-#ifdef AH_HINT_METRICS
- AH_Point* min_point = 0;
- AH_Point* max_point = 0;
- FT_Pos min_coord = 32000;
- FT_Pos max_coord = -32000;
-#endif
-
-
- /* do each contour separately */
- for ( ; contour < contour_limit; contour++ )
- {
- AH_Point* point = contour[0];
- AH_Point* last = point->prev;
- int on_edge = 0;
- FT_Pos min_pos = +32000; /* minimum segment pos != min_coord */
- FT_Pos max_pos = -32000; /* maximum segment pos != max_coord */
- FT_Bool passed;
-
-
-#ifdef AH_HINT_METRICS
- if ( point->u < min_coord )
- {
- min_coord = point->u;
- min_point = point;
- }
- if ( point->u > max_coord )
- {
- max_coord = point->u;
- max_point = point;
- }
-#endif
-
- if ( point == last ) /* skip singletons -- just in case? */
- continue;
-
- if ( ABS( last->out_dir ) == major_dir &&
- ABS( point->out_dir ) == major_dir )
- {
- /* we are already on an edge, try to locate its start */
- last = point;
-
- for (;;)
- {
- point = point->prev;
- if ( ABS( point->out_dir ) != major_dir )
- {
- point = point->next;
- break;
- }
- if ( point == last )
- break;
- }
-
- }
-
- last = point;
- passed = 0;
-
- for (;;)
- {
- FT_Pos u, v;
-
-
- if ( on_edge )
- {
- u = point->u;
- if ( u < min_pos )
- min_pos = u;
- if ( u > max_pos )
- max_pos = u;
-
- if ( point->out_dir != segment_dir || point == last )
- {
- /* we are just leaving an edge; record a new segment! */
- segment->last = point;
- segment->pos = ( min_pos + max_pos ) >> 1;
-
- /* a segment is round if either its first or last point */
- /* is a control point */
- if ( ( segment->first->flags | point->flags ) &
- ah_flah_control )
- segment->flags |= ah_edge_round;
-
- /* compute segment size */
- min_pos = max_pos = point->v;
-
- v = segment->first->v;
- if ( v < min_pos )
- min_pos = v;
- if ( v > max_pos )
- max_pos = v;
-
- segment->min_coord = min_pos;
- segment->max_coord = max_pos;
-
- on_edge = 0;
- num_segments++;
- segment++;
- /* fallthrough */
- }
- }
-
- /* now exit if we are at the start/end point */
- if ( point == last )
- {
- if ( passed )
- break;
- passed = 1;
- }
-
- if ( !on_edge && ABS( point->out_dir ) == major_dir )
- {
- /* this is the start of a new segment! */
- segment_dir = point->out_dir;
-
- /* clear all segment fields */
- memset( segment, 0, sizeof ( *segment ) );
-
- segment->dir = segment_dir;
- segment->flags = ah_edge_normal;
- min_pos = max_pos = point->u;
- segment->first = point;
- segment->last = point;
- segment->contour = contour;
- on_edge = 1;
-
- if ( point == max_point )
- max_point = 0;
-
- if ( point == min_point )
- min_point = 0;
- }
-
- point = point->next;
- }
-
- } /* contours */
-
-#ifdef AH_HINT_METRICS
- /* we need to ensure that there are edges on the left-most and */
- /* right-most points of the glyph in order to hint the metrics; */
- /* we do this by inserting fake segments when needed */
- if ( dimension == 0 )
- {
- AH_Point* point = outline->points;
- AH_Point* limit = point + outline->num_points;
-
- AH_Point* min_point = 0;
- AH_Point* max_point = 0;
- FT_Pos min_pos = 32000;
- FT_Pos max_pos = -32000;
-
-
- /* compute minimum and maximum points */
- for ( ; point < limit; point++ )
- {
- FT_Pos x = point->fx;
-
-
- if ( x < min_pos )
- {
- min_pos = x;
- min_point = point;
- }
- if ( x > max_pos )
- {
- max_pos = x;
- max_point = point;
- }
- }
-
- /* insert minimum segment */
- if ( min_point )
- {
- /* clear all segment fields */
- memset( segment, 0, sizeof ( *segment ) );
-
- segment->dir = segment_dir;
- segment->flags = ah_edge_normal;
- segment->first = min_point;
- segment->last = min_point;
- segment->pos = min_pos;
-
- num_segments++;
- segment++;
- }
-
- /* insert maximum segment */
- if ( max_point )
- {
- /* clear all segment fields */
- memset( segment, 0, sizeof ( *segment ) );
-
- segment->dir = segment_dir;
- segment->flags = ah_edge_normal;
- segment->first = max_point;
- segment->last = max_point;
- segment->pos = max_pos;
-
- num_segments++;
- segment++;
- }
- }
-#endif /* AH_HINT_METRICS */
-
- *p_num_segments = num_segments;
-
- segments = outline->vert_segments;
- major_dir = ah_dir_up;
- p_num_segments = &outline->num_vsegments;
- ah_setup_uv( outline, ah_uv_fxy );
- }
- }
-
-
- LOCAL_FUNC
- void ah_outline_link_segments( AH_Outline* outline )
- {
- AH_Segment* segments;
- AH_Segment* limit;
- int dimension;
-
-
- ah_setup_uv( outline, ah_uv_fyx );
-
- segments = outline->horz_segments;
- limit = segments + outline->num_hsegments;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Segment* seg1;
- AH_Segment* seg2;
-
-
- /* now compare each segment to the others */
- for ( seg1 = segments; seg1 < limit; seg1++ )
- {
- FT_Pos best_score = 32000;
- AH_Segment* best_segment = 0;
-
-
- /* the fake segments are introduced to hint the metrics -- */
- /* we must never link them to anything */
- if ( seg1->first == seg1->last )
- continue;
-
- for ( seg2 = segments; seg2 < limit; seg2++ )
- if ( seg1 != seg2 && seg1->dir + seg2->dir == 0 )
- {
- FT_Pos pos1 = seg1->pos;
- FT_Pos pos2 = seg2->pos;
- FT_Bool is_dir;
- FT_Bool is_pos;
-
-
- /* check that the segments are correctly oriented and */
- /* positioned to form a black distance */
-
- is_dir = ( seg1->dir == outline->horz_major_dir ||
- seg1->dir == outline->vert_major_dir );
- is_pos = pos1 > pos2;
-
- if ( pos1 == pos2 || !(is_dir ^ is_pos) )
- continue;
-
- /* Check the two segments. We now have a better algorithm */
- /* that doesn't rely on the segment points themselves but */
- /* on their relative position. This gets rids of many */
- /* unpleasant artefacts and incorrect stem/serifs */
- /* computations. */
-
- /* first of all, compute the size of the `common' height */
- {
- FT_Pos min = seg1->min_coord;
- FT_Pos max = seg1->max_coord;
- FT_Pos len, score;
- FT_Pos size1, size2;
-
-
- size1 = max - min;
- size2 = seg2->max_coord - seg2->min_coord;
-
- if ( min < seg2->min_coord )
- min = seg2->min_coord;
-
- if ( max < seg2->max_coord )
- max = seg2->max_coord;
-
- len = max - min;
- score = seg2->pos - seg1->pos;
- if ( score < 0 )
- score = -score;
-
- /* before comparing the scores, take care that the segments */
- /* are really facing each other (often not for italics..) */
- if ( 4 * len >= size1 && 4 * len >= size2 )
- if ( score < best_score )
- {
- best_score = score;
- best_segment = seg2;
- }
- }
- }
-
- if ( best_segment )
- {
- seg1->link = best_segment;
- seg1->score = best_score;
-
- best_segment->num_linked++;
- }
-
-
- } /* edges 1 */
-
- /* now, compute the `serif' segments */
- for ( seg1 = segments; seg1 < limit; seg1++ )
- {
- seg2 = seg1->link;
-
- if ( seg2 && seg2->link != seg1 )
- {
- seg1->link = 0;
- seg1->serif = seg2->link;
- }
- }
-
- ah_setup_uv( outline, ah_uv_fxy );
-
- segments = outline->vert_segments;
- limit = segments + outline->num_vsegments;
- }
- }
-
-
-#ifdef AH_DEBUG_GLYPH
-
- /* A function used to dump the array of linked segments */
- void ah_dump_segments( AH_Outline* outline )
- {
- AH_Segment* segments;
- AH_Segment* limit;
- AH_Point* points;
- FT_Int dimension;
-
-
- points = outline->points;
- segments = outline->horz_segments;
- limit = segments + outline->num_hsegments;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Segment* seg;
-
-
- printf ( "Table of %s segments:\n",
- !dimension ? "vertical" : "horizontal" );
- printf ( " [ index | pos | dir | link | serif |"
- " numl | first | start ]\n" );
-
- for ( seg = segments; seg < limit; seg++ )
- {
- printf ( " [ %5d | %4d | %5s | %4d | %5d | %4d | %5d | %5d ]\n",
- seg - segments,
- (int)seg->pos,
- seg->dir == ah_dir_up
- ? "up"
- : ( seg->dir == ah_dir_down
- ? "down"
- : ( seg->dir == ah_dir_left
- ? "left"
- : ( seg->dir == ah_dir_right
- ? "right"
- : "none" ) ) ),
- seg->link ? (seg->link-segments) : -1,
- seg->serif ? (seg->serif-segments) : -1,
- (int)seg->num_linked,
- seg->first - points,
- seg->last - points );
- }
-
- segments = outline->vert_segments;
- limit = segments + outline->num_vsegments;
- }
- }
-
-#endif /* AH_DEBUG_GLYPH */
-
-
- static
- void ah_outline_compute_edges( AH_Outline* outline )
- {
- AH_Edge* edges;
- AH_Segment* segments;
- AH_Segment* segment_limit;
- AH_Direction up_dir;
- FT_Int* p_num_edges;
- FT_Int dimension;
- FT_Fixed scale;
- FT_Pos edge_distance_threshold;
-
-
- edges = outline->horz_edges;
- segments = outline->horz_segments;
- segment_limit = segments + outline->num_hsegments;
- p_num_edges = &outline->num_hedges;
- up_dir = ah_dir_right;
- scale = outline->y_scale;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Edge* edge;
- AH_Edge* edge_limit; /* really == edge + num_edges */
- AH_Segment* seg;
-
-
- /*********************************************************************/
- /* */
- /* We will begin by generating a sorted table of edges for the */
- /* current direction. To do so, we simply scan each segment and try */
- /* to find an edge in our table that corresponds to its position. */
- /* */
- /* If no edge is found, we create and insert a new edge in the */
- /* sorted table. Otherwise, we simply add the segment to the edge's */
- /* list which will be processed in the second step to compute the */
- /* edge's properties. */
- /* */
- /* Note that the edges table is sorted along the segment/edge */
- /* position. */
- /* */
- /*********************************************************************/
-
- edge_distance_threshold = FT_MulFix( outline->edge_distance_threshold,
- scale );
- if ( edge_distance_threshold > 64 / 4 )
- edge_distance_threshold = 64 / 4;
-
- edge_limit = edges;
- for ( seg = segments; seg < segment_limit; seg++ )
- {
- AH_Edge* found = 0;
-
-
- /* look for an edge corresponding to the segment */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- FT_Pos dist;
-
-
- dist = seg->pos - edge->fpos;
- if ( dist < 0 )
- dist = -dist;
-
- dist = FT_MulFix( dist, scale );
- if ( dist < edge_distance_threshold )
- {
- found = edge;
- break;
- }
- }
-
- if ( !found )
- {
- /* insert a new edge in the list and */
- /* sort according to the position */
- while ( edge > edges && edge[-1].fpos > seg->pos )
- {
- edge[0] = edge[-1];
- edge--;
- }
- edge_limit++;
-
- /* clear all edge fields */
- memset( edge, 0, sizeof ( *edge ) );
-
- /* add the segment to the new edge's list */
- edge->first = seg;
- edge->last = seg;
- edge->fpos = seg->pos;
- edge->opos = edge->pos = FT_MulFix( seg->pos, scale );
- seg->edge_next = seg;
- }
- else
- {
- /* if an edge was found, simply add the segment to the edge's */
- /* list */
- seg->edge_next = edge->first;
- edge->last->edge_next = seg;
- edge->last = seg;
- }
- }
-
- *p_num_edges = edge_limit - edges;
-
-
- /*********************************************************************/
- /* */
- /* Good, we will now compute each edge's properties according to */
- /* segments found on its position. Basically, these are: */
- /* */
- /* - edge's main direction */
- /* - stem edge, serif edge or both (which defaults to stem then) */
- /* - rounded edge, straigth or both (which defaults to straight) */
- /* - link for edge */
- /* */
- /*********************************************************************/
-
- /* first of all, set the `edge' field in each segment -- this is */
- /* required in order to compute edge links */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- seg = edge->first;
- if ( seg )
- do
- {
- seg->edge = edge;
- seg = seg->edge_next;
- }
- while ( seg != edge->first );
- }
-
- /* now, compute each edge properties */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- int is_round = 0; /* does it contain round segments? */
- int is_straight = 0; /* does it contain straight segments? */
- int ups = 0; /* number of upwards segments */
- int downs = 0; /* number of downwards segments */
-
-
- seg = edge->first;
-
- do
- {
- FT_Bool is_serif;
-
-
- /* check for roundness of segment */
- if ( seg->flags & ah_edge_round )
- is_round++;
- else
- is_straight++;
-
- /* check for segment direction */
- if ( seg->dir == up_dir )
- ups += seg->max_coord-seg->min_coord;
- else
- downs += seg->max_coord-seg->min_coord;
-
- /* check for links -- if seg->serif is set, then seg->link must */
- /* be ignored */
- is_serif = seg->serif && seg->serif->edge != edge;
-
- if ( seg->link || is_serif )
- {
- AH_Edge* edge2;
- AH_Segment* seg2;
-
-
- edge2 = edge->link;
- seg2 = seg->link;
-
- if ( is_serif )
- {
- seg2 = seg->serif;
- edge2 = edge->serif;
- }
-
- if ( edge2 )
- {
- FT_Pos edge_delta;
- FT_Pos seg_delta;
-
-
- edge_delta = edge->fpos - edge2->fpos;
- if ( edge_delta < 0 )
- edge_delta = -edge_delta;
-
- seg_delta = seg->pos - seg2->pos;
- if ( seg_delta < 0 )
- seg_delta = -seg_delta;
-
- if ( seg_delta < edge_delta )
- edge2 = seg2->edge;
- }
- else
- edge2 = seg2->edge;
-
- if ( is_serif )
- edge->serif = edge2;
- else
- edge->link = edge2;
- }
-
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
-
- /* set the round/straight flags */
- edge->flags = ah_edge_normal;
-
- if ( is_straight == 0 && is_round )
- edge->flags |= ah_edge_round;
-
- /* set the edge's main direction */
- edge->dir = ah_dir_none;
-
- if ( ups > downs )
- edge->dir = up_dir;
-
- else if ( ups < downs )
- edge->dir = - up_dir;
-
- else if ( ups == downs )
- edge->dir = 0; /* both up and down !! */
-
- /* gets rid of serifs if link is set */
- /* XXX: This gets rid of many unpleasant artefacts! */
- /* Example: the `c' in cour.pfa at size 13 */
-
- if ( edge->serif && edge->link )
- edge->serif = 0;
- }
-
- edges = outline->vert_edges;
- segments = outline->vert_segments;
- segment_limit = segments + outline->num_vsegments;
- p_num_edges = &outline->num_vedges;
- up_dir = ah_dir_up;
- scale = outline->x_scale;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_detect_features */
- /* */
- /* <Description> */
- /* Performs feature detection on a given AH_Outline object. */
- /* */
- LOCAL_FUNC
- void ah_outline_detect_features( AH_Outline* outline )
- {
- ah_outline_compute_segments( outline );
- ah_outline_link_segments ( outline );
- ah_outline_compute_edges ( outline );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_compute_blue_edges */
- /* */
- /* <Description> */
- /* Computes the `blue edges' in a given outline (i.e. those that must */
- /* be snapped to a blue zone edge (top or bottom). */
- /* */
- LOCAL_FUNC
- void ah_outline_compute_blue_edges( AH_Outline* outline,
- AH_Face_Globals* face_globals )
- {
- AH_Edge* edge = outline->horz_edges;
- AH_Edge* limit = edge + outline->num_hedges;
- AH_Globals* globals = &face_globals->design;
- FT_Fixed y_scale = outline->y_scale;
-
-
- /* compute for each horizontal edge, which blue zone is closer */
- for ( ; edge < limit; edge++ )
- {
- AH_Blue blue;
- FT_Pos* best_blue = 0;
- FT_Pos best_dist; /* initial threshold */
-
-
- /* compute the initial threshold as a fraction of the EM size */
- best_dist = FT_MulFix( face_globals->face->units_per_EM / 40, y_scale );
- if ( best_dist > 64 / 4 )
- best_dist = 64 / 4;
-
- for ( blue = ah_blue_capital_top; blue < ah_blue_max; blue++ )
- {
- /* if it is a top zone, check for right edges -- if it is a bottom */
- /* zone, check for left edges */
- /* */
- /* of course, that's for TrueType XXX */
- FT_Bool is_top_blue = AH_IS_TOP_BLUE( blue );
- FT_Bool is_major_dir = edge->dir == outline->horz_major_dir;
-
-
- /* if it is a top zone, the edge must be against the major */
- /* direction; if it is a bottom zone, it must be in the major */
- /* direction */
- if ( is_top_blue ^ is_major_dir )
- {
- FT_Pos dist;
- FT_Pos* blue_pos = globals->blue_refs + blue;
-
-
- /* first of all, compare it to the reference position */
- dist = edge->fpos - *blue_pos;
- if ( dist < 0 )
- dist = -dist;
-
- dist = FT_MulFix( dist, y_scale );
- if ( dist < best_dist )
- {
- best_dist = dist;
- best_blue = blue_pos;
- }
-
- /* now, compare it to the overshoot position if the edge is */
- /* rounded, and if the edge is over the reference position of a */
- /* top zone, or under the reference position of a bottom zone */
- if ( edge->flags & ah_edge_round && dist != 0 )
- {
- FT_Bool is_under_ref = edge->fpos < *blue_pos;
-
-
- if ( is_top_blue ^ is_under_ref )
- {
- blue_pos = globals->blue_shoots + blue;
- dist = edge->fpos - *blue_pos;
- if ( dist < 0 )
- dist = -dist;
-
- dist = FT_MulFix( dist, y_scale );
- if ( dist < best_dist )
- {
- best_dist = dist;
- best_blue = blue_pos;
- }
- }
- }
- }
- }
-
- if ( best_blue )
- edge->blue_edge = best_blue;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ah_outline_scale_blue_edges */
- /* */
- /* <Description> */
- /* This functions must be called before hinting in order to re-adjust */
- /* the contents of the detected edges (basically change the `blue */
- /* edge' pointer from `design units' to `scaled ones'). */
- /* */
- LOCAL_FUNC
- void ah_outline_scale_blue_edges( AH_Outline* outline,
- AH_Face_Globals* globals )
- {
- AH_Edge* edge = outline->horz_edges;
- AH_Edge* limit = edge + outline->num_hedges;
- FT_Int delta;
-
-
- delta = globals->scaled.blue_refs - globals->design.blue_refs;
-
- for ( ; edge < limit; edge++ )
- {
- if ( edge->blue_edge )
- edge->blue_edge += delta;
- }
- }
-
-
-#ifdef AH_DEBUG_GLYPH
-
- void ah_dump_edges( AH_Outline* outline )
- {
- AH_Edge* edges;
- AH_Edge* limit;
- AH_Segment* segments;
- FT_Int dimension;
-
-
- edges = outline->horz_edges;
- limit = edges + outline->num_hedges;
- segments = outline->horz_segments;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Edge* edge;
-
-
- printf ( "Table of %s edges:\n",
- !dimension ? "vertical" : "horizontal" );
- printf ( " [ index | pos | dir | link |"
- " serif | blue | opos | pos ]\n" );
-
- for ( edge = edges; edge < limit; edge++ )
- {
- printf ( " [ %5d | %4d | %5s | %4d | %5d | %c | %5.2f | %5.2f ]\n",
- edge - edges,
- (int)edge->fpos,
- edge->dir == ah_dir_up
- ? "up"
- : ( edge->dir == ah_dir_down
- ? "down"
- : ( edge->dir == ah_dir_left
- ? "left"
- : ( edge->dir == ah_dir_right
- ? "right"
- : "none" ) ) ),
- edge->link ? ( edge->link - edges ) : -1,
- edge->serif ? ( edge->serif - edges ) : -1,
- edge->blue_edge ? 'y' : 'n',
- edge->opos / 64.0,
- edge->pos / 64.0 );
- }
-
- edges = outline->vert_edges;
- limit = edges + outline->num_vedges;
- segments = outline->vert_segments;
- }
- }
-
-#endif /* AH_DEBUG_GLYPH */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahglyph.h */
-/* */
-/* Routines used to load and analyze a given glyph before hinting */
-/* (specification). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHGLYPH_H
-#define AHGLYPH_H
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahtypes.h"
-
-#else
-
-#include <autohint/ahtypes.h>
-
-#endif
-
-
- typedef enum AH_UV_
- {
- ah_uv_fxy,
- ah_uv_fyx,
- ah_uv_oxy,
- ah_uv_oyx,
- ah_uv_ox,
- ah_uv_oy,
- ah_uv_yx,
- ah_uv_xy /* should always be last! */
-
- } AH_UV;
-
-
- LOCAL_DEF
- void ah_setup_uv( AH_Outline* outline,
- AH_UV source );
-
-
- /* AH_Outline functions - they should be typically called in this order */
-
- LOCAL_DEF
- FT_Error ah_outline_new( FT_Memory memory,
- AH_Outline** aoutline );
-
- LOCAL_DEF
- FT_Error ah_outline_load( AH_Outline* outline,
- FT_Face face );
-
- LOCAL_DEF
- void ah_outline_compute_segments( AH_Outline* outline );
-
- LOCAL_DEF
- void ah_outline_link_segments( AH_Outline* outline );
-
- LOCAL_DEF
- void ah_outline_detect_features( AH_Outline* outline );
-
- LOCAL_DEF
- void ah_outline_compute_blue_edges( AH_Outline* outline,
- AH_Face_Globals* globals );
-
- LOCAL_DEF
- void ah_outline_scale_blue_edges( AH_Outline* outline,
- AH_Face_Globals* globals );
-
- LOCAL_DEF
- void ah_outline_save( AH_Outline* outline, AH_Loader* loader );
-
- LOCAL_DEF
- void ah_outline_done( AH_Outline* outline );
-
-
-#endif /* AHGLYPH_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahhint.c */
-/* */
-/* Glyph hinter (body). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahhint.h"
-#include "ahglyph.h"
-#include "ahangles.h"
-
-#else
-
-#include <autohint/ahhint.h>
-#include <autohint/ahglyph.h>
-#include <autohint/ahangles.h>
-
-#endif
-
-#include <freetype/ftoutln.h>
-
-
-#define FACE_GLOBALS( face ) ((AH_Face_Globals*)(face)->autohint.data)
-
-#define AH_USE_IUP
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** Hinting routines ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static int disable_horz_edges = 0;
- static int disable_vert_edges = 0;
-
-
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
- static
- FT_Pos ah_snap_width( FT_Pos* widths,
- FT_Int count,
- FT_Pos width )
- {
- int n;
- FT_Pos best = 64 + 32 + 2;
- FT_Pos reference = width;
-
-
- for ( n = 0; n < count; n++ )
- {
- FT_Pos w;
- FT_Pos dist;
-
-
- w = widths[n];
- dist = width - w;
- if ( dist < 0 )
- dist = -dist;
- if ( dist < best )
- {
- best = dist;
- reference = w;
- }
- }
-
- if ( width >= reference )
- {
- width -= 0x21;
- if ( width < reference )
- width = reference;
- }
- else
- {
- width += 0x21;
- if ( width > reference )
- width = reference;
- }
-
- return width;
- }
-
-
- /* align one stem edge relative to the previous stem edge */
- static
- void ah_align_linked_edge( AH_Hinter* hinter,
- AH_Edge* base_edge,
- AH_Edge* stem_edge,
- int vertical )
- {
- FT_Pos dist = stem_edge->opos - base_edge->opos;
- AH_Globals* globals = &hinter->globals->scaled;
- FT_Pos sign = 1;
-
-
- if ( dist < 0 )
- {
- dist = -dist;
- sign = -1;
- }
-
- if ( vertical )
- {
- dist = ah_snap_width( globals->heights, globals->num_heights, dist );
-
- /* in the case of vertical hinting, always round */
- /* the stem heights to integer pixels */
- if ( dist >= 64 )
- dist = ( dist + 16 ) & -64;
- else
- dist = 64;
- }
- else
- {
- dist = ah_snap_width( globals->widths, globals->num_widths, dist );
-
- if ( hinter->flags & ah_hinter_monochrome )
- {
- /* monochrome horizontal hinting: snap widths to integer pixels */
- /* with a different threshold */
- if ( dist < 64 )
- dist = 64;
- else
- dist = ( dist + 32 ) & -64;
- }
- else
- {
- /* for horizontal anti-aliased hinting, we adopt a more subtle */
- /* approach: we strengthen small stems, round stems whose size */
- /* is between 1 and 2 pixels to an integer, otherwise nothing */
- if ( dist < 48 )
- dist = ( dist + 64 ) >> 1;
-
- else if ( dist < 128 )
- dist = ( dist + 42 ) & -64;
- }
- }
-
- stem_edge->pos = base_edge->pos + sign * dist;
- }
-
-
- static
- void ah_align_serif_edge( AH_Hinter* hinter,
- AH_Edge* base,
- AH_Edge* serif )
- {
- FT_Pos dist;
- FT_Pos sign = 1;
-
- UNUSED( hinter );
-
-
- dist = serif->opos - base->opos;
- if ( dist < 0 )
- {
- dist = -dist;
- sign = -1;
- }
-
- /* do not strengthen serifs */
- if ( base->flags & ah_edge_done )
- {
- if ( dist > 64 )
- dist = ( dist + 16 ) & -64;
-
- else if ( dist <= 32 )
- dist = ( dist + 33 ) >> 1;
- }
-
- serif->pos = base->pos + sign * dist;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** E D G E H I N T I N G ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* Another alternative edge hinting algorithm */
- static
- void ah_hint_edges_3( AH_Hinter* hinter )
- {
- AH_Edge* edges;
- AH_Edge* edge_limit;
- AH_Outline* outline = hinter->glyph;
- FT_Int dimension;
-
-
- edges = outline->horz_edges;
- edge_limit = edges + outline->num_hedges;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Edge* edge;
- AH_Edge* before = 0;
- AH_Edge* after = 0;
- AH_Edge* anchor = 0;
- int has_serifs = 0;
-
-
- if ( disable_vert_edges && !dimension )
- goto Next_Dimension;
-
- if ( disable_horz_edges && dimension )
- goto Next_Dimension;
-
- /* we begin by aligning all stems relative to the blue zone */
- /* if needed -- that's only for horizontal edges */
- if ( dimension )
- {
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- FT_Pos* blue;
- AH_Edge *edge1, *edge2;
-
-
- if ( edge->flags & ah_edge_done )
- continue;
-
- blue = edge->blue_edge;
- edge1 = 0;
- edge2 = edge->link;
-
- if ( blue )
- {
- edge1 = edge;
- }
- else if (edge2 && edge2->blue_edge)
- {
- blue = edge2->blue_edge;
- edge1 = edge2;
- edge2 = edge;
- }
-
- if ( !edge1 )
- continue;
-
- edge1->pos = blue[0];
- edge1->flags |= ah_edge_done;
-
- if ( edge2 && !edge2->blue_edge )
- {
- ah_align_linked_edge( hinter, edge1, edge2, dimension );
- edge2->flags |= ah_edge_done;
- }
-
- if ( !anchor )
- anchor = edge;
- }
- }
-
- /* now, we will align all stem edges, trying to maintain the */
- /* relative order of stems in the glyph.. */
- before = 0;
- after = 0;
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- AH_Edge *edge2;
-
-
- if ( edge->flags & ah_edge_done )
- continue;
-
- /* skip all non-stem edges */
- edge2 = edge->link;
- if ( !edge2 )
- {
- has_serifs++;
- continue;
- }
-
- /* now, align the stem */
-
- /* this should not happen, but it's better to be safe.. */
- if ( edge2->blue_edge || edge2 < edge )
- {
-
-#if 0
- printf( "strange blue alignement, edge %d to %d\n",
- edge - edges, edge2 - edges );
-#endif
-
- ah_align_linked_edge( hinter, edge2, edge, dimension );
- edge->flags |= ah_edge_done;
- continue;
- }
-
- {
- FT_Bool min = 0;
- FT_Pos delta;
-
- if ( !anchor )
- {
- edge->pos = ( edge->opos + 32 ) & -64;
- anchor = edge;
- }
- else
- edge->pos = anchor->pos +
- ( ( edge->opos - anchor->opos + 32 ) & -64 );
-
- edge->flags |= ah_edge_done;
-
- if ( edge > edges && edge->pos < edge[-1].pos )
- {
- edge->pos = edge[-1].pos;
- min = 1;
- }
-
- ah_align_linked_edge( hinter, edge, edge2, dimension );
- delta = 0;
- if ( edge2 + 1 < edge_limit &&
- edge2[1].flags & ah_edge_done )
- delta = edge2[1].pos - edge2->pos;
-
- if ( delta < 0 )
- {
- edge2->pos += delta;
- if ( !min )
- edge->pos += delta;
- }
- edge2->flags |= ah_edge_done;
- }
- }
-
- if ( !has_serifs )
- goto Next_Dimension;
-
- /* now, hint the remaining edges (serifs and single) in order */
- /* to complete our processing */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- if ( edge->flags & ah_edge_done )
- continue;
-
- if ( edge->serif )
- {
- ah_align_serif_edge( hinter, edge->serif, edge );
- }
- else if ( !anchor )
- {
- edge->pos = ( edge->opos + 32 ) & -64;
- anchor = edge;
- }
- else
- edge->pos = anchor->pos +
- ( ( edge->opos-anchor->opos + 32 ) & -64 );
-
- edge->flags |= ah_edge_done;
-
- if ( edge > edges && edge->pos < edge[-1].pos )
- edge->pos = edge[-1].pos;
-
- if ( edge + 1 < edge_limit &&
- edge[1].flags & ah_edge_done &&
- edge->pos > edge[1].pos )
- edge->pos = edge[1].pos;
- }
-
- Next_Dimension:
- edges = outline->vert_edges;
- edge_limit = edges + outline->num_vedges;
- }
- }
-
-
- LOCAL_FUNC
- void ah_hinter_hint_edges( AH_Hinter* hinter,
- int no_horz_edges,
- int no_vert_edges )
- {
- disable_horz_edges = no_horz_edges;
- disable_vert_edges = no_vert_edges;
-
- /* AH_Interpolate_Blue_Edges( hinter ); -- doesn't seem to help */
- /* reduce the problem of the disappearing eye in the `e' of Times... */
- /* also, creates some artifacts near the blue zones? */
- {
- ah_hint_edges_3( hinter );
-
-#if 0
- /* outline optimizer removed temporarily */
- if ( hinter->flags & ah_hinter_optimize )
- {
- AH_Optimizer opt;
-
-
- if ( !AH_Optimizer_Init( &opt, hinter->glyph, hinter->memory ) )
- {
- AH_Optimizer_Compute( &opt );
- AH_Optimizer_Done( &opt );
- }
- }
-#endif
-
- }
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** P O I N T H I N T I N G ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- static
- void ah_hinter_align_edge_points( AH_Hinter* hinter )
- {
- AH_Outline* outline = hinter->glyph;
- AH_Edge* edges;
- AH_Edge* edge_limit;
- FT_Int dimension;
-
-
- edges = outline->horz_edges;
- edge_limit = edges + outline->num_hedges;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Edge* edge;
- AH_Edge* before;
- AH_Edge* after;
-
-
- before = 0;
- after = 0;
-
- edge = edges;
- for ( ; edge < edge_limit; edge++ )
- {
- /* move the points of each segment */
- /* in each edge to the edge's position */
- AH_Segment* seg = edge->first;
-
-
- do
- {
- AH_Point* point = seg->first;
-
-
- for (;;)
- {
- if ( dimension )
- {
- point->y = edge->pos;
- point->flags |= ah_flah_touch_y;
- }
- else
- {
- point->x = edge->pos;
- point->flags |= ah_flah_touch_x;
- }
-
- if ( point == seg->last )
- break;
-
- point = point->next;
- }
-
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
- }
-
- edges = outline->vert_edges;
- edge_limit = edges + outline->num_vedges;
- }
- }
-
-
- /* hint the strong points -- this is equivalent to the TrueType `IP' */
- static
- void ah_hinter_align_strong_points( AH_Hinter* hinter )
- {
- AH_Outline* outline = hinter->glyph;
- FT_Int dimension;
- AH_Edge* edges;
- AH_Edge* edge_limit;
- AH_Point* points;
- AH_Point* point_limit;
- AH_Flags touch_flag;
-
-
- points = outline->points;
- point_limit = points + outline->num_points;
-
- edges = outline->horz_edges;
- edge_limit = edges + outline->num_hedges;
- touch_flag = ah_flah_touch_y;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Point* point;
- AH_Edge* edge;
- AH_Edge* before;
- AH_Edge* after;
-
-
- before = 0;
- after = 0;
-
- if ( edges < edge_limit )
- for ( point = points; point < point_limit; point++ )
- {
- FT_Pos u, ou, fu; /* point position */
- FT_Pos delta;
-
-
- if ( point->flags & touch_flag )
- continue;
-
-#ifndef AH_OPTION_NO_WEAK_INTERPOLATION
- /* if this point is candidate to weak interpolation, we will */
- /* interpolate it after all strong points have been processed */
- if ( point->flags & ah_flah_weak_interpolation )
- continue;
-#endif
-
- if ( dimension )
- {
- u = point->fy;
- ou = point->oy;
- }
- else
- {
- u = point->fx;
- ou = point->ox;
- }
-
- fu = u;
-
- /* is the point before the first edge? */
- edge = edges;
- delta = edge->fpos - u;
- if ( delta >= 0 )
- {
- u = edge->pos - ( edge->opos - ou );
- goto Store_Point;
- }
-
- /* is the point after the last edge ? */
- edge = edge_limit - 1;
- delta = u - edge->fpos;
- if ( delta >= 0 )
- {
- u = edge->pos + ( ou - edge->opos );
- goto Store_Point;
- }
-
- /* otherwise, interpolate the point in between */
- {
- AH_Edge* before = 0;
- AH_Edge* after = 0;
-
-
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- if ( u == edge->fpos )
- {
- u = edge->pos;
- goto Store_Point;
- }
- if ( u < edge->fpos )
- break;
- before = edge;
- }
-
- for ( edge = edge_limit - 1; edge >= edges; edge-- )
- {
- if ( u == edge->fpos )
- {
- u = edge->pos;
- goto Store_Point;
- }
- if ( u > edge->fpos )
- break;
- after = edge;
- }
-
- /* assert( before && after && before != after ) */
- u = before->pos + FT_MulDiv( fu - before->fpos,
- after->pos - before->pos,
- after->fpos - before->fpos );
- }
-
- Store_Point:
-
- /* save the point position */
- if ( dimension )
- point->y = u;
- else
- point->x = u;
-
- point->flags |= touch_flag;
- }
-
- edges = outline->vert_edges;
- edge_limit = edges + outline->num_vedges;
- touch_flag = ah_flah_touch_x;
- }
- }
-
-
-#ifndef AH_OPTION_NO_WEAK_INTERPOLATION
-
- static
- void ah_iup_shift( AH_Point* p1,
- AH_Point* p2,
- AH_Point* ref )
- {
- AH_Point* p;
- FT_Pos delta = ref->u - ref->v;
-
-
- for ( p = p1; p < ref; p++ )
- p->u = p->v + delta;
-
- for ( p = ref + 1; p <= p2; p++ )
- p->u = p->v + delta;
- }
-
-
- static
- void ah_iup_interp( AH_Point* p1,
- AH_Point* p2,
- AH_Point* ref1,
- AH_Point* ref2 )
- {
- AH_Point* p;
- FT_Pos u;
- FT_Pos v1 = ref1->v;
- FT_Pos v2 = ref2->v;
- FT_Pos d1 = ref1->u - v1;
- FT_Pos d2 = ref2->u - v2;
-
-
- if ( p1 > p2 )
- return;
-
- if ( v1 == v2 )
- {
- for ( p = p1; p <= p2; p++ )
- {
- FT_Pos u = p->v;
-
-
- if ( u <= v1 )
- u += d1;
- else
- u += d2;
-
- p->u = u;
- }
- return;
- }
-
- if ( v1 < v2 )
- {
- for ( p = p1; p <= p2; p++ )
- {
- u = p->v;
-
- if ( u <= v1 )
- u += d1;
- else if ( u >= v2 )
- u += d2;
- else
- u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 );
-
- p->u = u;
- }
- }
- else
- {
- for ( p = p1; p <= p2; p++ )
- {
- u = p->v;
-
- if ( u <= v2 )
- u += d2;
- else if ( u >= v1 )
- u += d1;
- else
- u = ref1->u + FT_MulDiv( u - v1, ref2->u - ref1->u, v2 - v1 );
-
- p->u = u;
- }
- }
- }
-
-
- /* interpolate weak points -- this is equivalent to the TrueType `IUP' */
- static
- void ah_hinter_align_weak_points( AH_Hinter* hinter )
- {
- AH_Outline* outline = hinter->glyph;
- FT_Int dimension;
- AH_Edge* edges;
- AH_Edge* edge_limit;
- AH_Point* points;
- AH_Point* point_limit;
- AH_Point** contour_limit;
- AH_Flags touch_flag;
-
-
- points = outline->points;
- point_limit = points + outline->num_points;
-
- /* PASS 1: Move segment points to edge positions */
-
- edges = outline->horz_edges;
- edge_limit = edges + outline->num_hedges;
- touch_flag = ah_flah_touch_y;
-
- contour_limit = outline->contours + outline->num_contours;
-
- ah_setup_uv( outline, ah_uv_oy );
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Point* point;
- AH_Point* end_point;
- AH_Point* first_point;
- AH_Point** contour;
-
-
- point = points;
- contour = outline->contours;
-
- for ( ; contour < contour_limit; contour++ )
- {
- point = *contour;
- end_point = point->prev;
- first_point = point;
-
- while ( point <= end_point && !( point->flags & touch_flag ) )
- point++;
-
- if ( point <= end_point )
- {
- AH_Point* first_touched = point;
- AH_Point* cur_touched = point;
-
-
- point++;
- while ( point <= end_point )
- {
- if ( point->flags & touch_flag )
- {
- /* we found two successive touched points; we interpolate */
- /* all contour points between them */
- ah_iup_interp( cur_touched + 1, point - 1,
- cur_touched, point );
- cur_touched = point;
- }
- point++;
- }
-
- if ( cur_touched == first_touched )
- {
- /* this is a special case: only one point was touched in the */
- /* contour; we thus simply shift the whole contour */
- ah_iup_shift( first_point, end_point, cur_touched );
- }
- else
- {
- /* now interpolate after the last touched point to the end */
- /* of the contour */
- ah_iup_interp( cur_touched + 1, end_point,
- cur_touched, first_touched );
-
- /* if the first contour point isn't touched, interpolate */
- /* from the contour start to the first touched point */
- if ( first_touched > points )
- ah_iup_interp( first_point, first_touched - 1,
- cur_touched, first_touched );
- }
- }
- }
-
- /* now save the interpolated values back to x/y */
- if ( dimension )
- {
- for ( point = points; point < point_limit; point++ )
- point->y = point->u;
-
- touch_flag = ah_flah_touch_x;
- ah_setup_uv( outline, ah_uv_ox );
- }
- else
- {
- for ( point = points; point < point_limit; point++ )
- point->x = point->u;
-
- break; /* exit loop */
- }
- }
- }
-
-#endif /* !AH_OPTION_NO_WEAK_INTERPOLATION */
-
-
- LOCAL_FUNC
- void ah_hinter_align_points( AH_Hinter* hinter )
- {
- ah_hinter_align_edge_points( hinter );
-
-#ifndef AH_OPTION_NO_STRONG_INTERPOLATION
- ah_hinter_align_strong_points( hinter );
-#endif
-
-#ifndef AH_OPTION_NO_WEAK_INTERPOLATION
- ah_hinter_align_weak_points( hinter );
-#endif
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** H I N T E R O B J E C T M E T H O D S ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* scale and fit the global metrics */
- static
- void ah_hinter_scale_globals( AH_Hinter* hinter,
- FT_Fixed x_scale,
- FT_Fixed y_scale )
- {
- FT_Int n;
- AH_Face_Globals* globals = hinter->globals;
- AH_Globals* design = &globals->design;
- AH_Globals* scaled = &globals->scaled;
-
-
- /* copy content */
- *scaled = *design;
-
- /* scale the standard widths & heights */
- for ( n = 0; n < design->num_widths; n++ )
- scaled->widths[n] = FT_MulFix( design->widths[n], x_scale );
-
- for ( n = 0; n < design->num_heights; n++ )
- scaled->heights[n] = FT_MulFix( design->heights[n], y_scale );
-
- /* scale the blue zones */
- for ( n = 0; n < ah_blue_max; n++ )
- {
- FT_Pos delta, delta2;
-
-
- delta = design->blue_shoots[n] - design->blue_refs[n];
- delta2 = delta;
- if ( delta < 0 )
- delta2 = -delta2;
- delta2 = FT_MulFix( delta2, y_scale );
-
- if ( delta2 < 32 )
- delta2 = 0;
- else if ( delta2 < 64 )
- delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & -32 );
- else
- delta2 = ( delta2 + 32 ) & -64;
-
- if ( delta < 0 )
- delta2 = -delta2;
-
- scaled->blue_refs[n] =
- ( FT_MulFix( design->blue_refs[n], y_scale ) + 32 ) & -64;
- scaled->blue_shoots[n] = scaled->blue_refs[n] + delta2;
- }
-
- globals->x_scale = x_scale;
- globals->y_scale = y_scale;
- }
-
-
- static
- void ah_hinter_align( AH_Hinter* hinter )
- {
- ah_hinter_align_edge_points( hinter );
- ah_hinter_align_points( hinter );
- }
-
-
- /* finalize a hinter object */
- void ah_hinter_done( AH_Hinter* hinter )
- {
- if ( hinter )
- {
- FT_Memory memory = hinter->memory;
-
-
- ah_loader_done( hinter->loader );
- ah_outline_done( hinter->glyph );
-
- /* note: the `globals' pointer is _not_ owned by the hinter */
- /* but by the current face object, we don't need to */
- /* release it */
- hinter->globals = 0;
- hinter->face = 0;
-
- FREE( hinter );
- }
- }
-
-
- /* create a new empty hinter object */
- FT_Error ah_hinter_new( FT_Library library,
- AH_Hinter** ahinter )
- {
- AH_Hinter* hinter = 0;
- FT_Memory memory = library->memory;
- FT_Error error;
-
-
- *ahinter = 0;
-
- /* allocate object */
- if ( ALLOC( hinter, sizeof ( *hinter ) ) )
- goto Exit;
-
- hinter->memory = memory;
- hinter->flags = 0;
-
- /* allocate outline and loader */
- error = ah_outline_new( memory, &hinter->glyph ) ||
- ah_loader_new ( memory, &hinter->loader ) ||
- ah_loader_create_extra( hinter->loader );
- if ( error )
- goto Exit;
-
- *ahinter = hinter;
-
- Exit:
- if ( error )
- ah_hinter_done( hinter );
-
- return error;
- }
-
-
- /* create a face's autohint globals */
- FT_Error ah_hinter_new_face_globals( AH_Hinter* hinter,
- FT_Face face,
- AH_Globals* globals )
- {
- FT_Error error;
- FT_Memory memory = hinter->memory;
- AH_Face_Globals* face_globals;
-
-
- if ( ALLOC( face_globals, sizeof ( *face_globals ) ) )
- goto Exit;
-
- hinter->face = face;
- hinter->globals = face_globals;
-
- if ( globals )
- face_globals->design = *globals;
- else
- ah_hinter_compute_globals( hinter );
-
- face->autohint.data = face_globals;
- face->autohint.finalizer = (FT_Generic_Finalizer)
- ah_hinter_done_face_globals;
- face_globals->face = face;
-
- Exit:
- return error;
- }
-
-
- /* discard a face's autohint globals */
- void ah_hinter_done_face_globals( AH_Face_Globals* globals )
- {
- FT_Face face = globals->face;
- FT_Memory memory = face->memory;
-
-
- FREE( globals );
- }
-
-
- static
- FT_Error ah_hinter_load( AH_Hinter* hinter,
- FT_UInt glyph_index,
- FT_UInt load_flags,
- FT_UInt depth )
- {
- FT_Face face = hinter->face;
- FT_GlyphSlot slot = face->glyph;
- FT_Fixed x_scale = face->size->metrics.x_scale;
- FT_Fixed y_scale = face->size->metrics.y_scale;
- FT_Glyph_Metrics metrics; /* temporary metrics */
- FT_Error error;
- AH_Outline* outline = hinter->glyph;
- AH_Loader* gloader = hinter->loader;
- FT_Bool no_horz_hints =
- ( load_flags & AH_HINT_NO_HORZ_EDGES ) != 0;
- FT_Bool no_vert_hints =
- ( load_flags & AH_HINT_NO_VERT_EDGES ) != 0;
-
-
- /* load the glyph */
- error = FT_Load_Glyph( face, glyph_index, load_flags );
- if ( error )
- goto Exit;
-
- /* save current glyph metrics */
- metrics = slot->metrics;
-
- switch ( slot->format )
- {
- case ft_glyph_format_outline:
- /* first of all, copy the outline points in the loader's current */
- /* extra points, which is used to keep original glyph coordinates */
- error = ah_loader_check_points( gloader, slot->outline.n_points + 2,
- slot->outline.n_contours );
- if ( error )
- goto Exit;
-
- MEM_Copy( gloader->current.extra_points, slot->outline.points,
- slot->outline.n_points * sizeof ( FT_Vector ) );
-
- MEM_Copy( gloader->current.outline.contours, slot->outline.contours,
- slot->outline.n_contours * sizeof ( short ) );
-
- MEM_Copy( gloader->current.outline.tags, slot->outline.tags,
- slot->outline.n_points * sizeof ( char ) );
-
- gloader->current.outline.n_points = slot->outline.n_points;
- gloader->current.outline.n_contours = slot->outline.n_contours;
-
- /* compute original phantom points */
- hinter->pp1.x = 0;
- hinter->pp1.y = 0;
- hinter->pp2.x = FT_MulFix( slot->metrics.horiAdvance, x_scale );
- hinter->pp2.y = 0;
-
- /* be sure to check for spacing glyphs */
- if ( slot->outline.n_points == 0 )
- goto Hint_Metrics;
-
- /* now, load the slot image into the auto-outline, and run the */
- /* automatic hinting process */
- error = ah_outline_load( outline, face ); /* XXX: change to slot */
- if ( error )
- goto Exit;
-
- /* perform feature detection */
- ah_outline_detect_features( outline );
-
- if ( !no_horz_hints )
- {
- ah_outline_compute_blue_edges( outline, hinter->globals );
- ah_outline_scale_blue_edges( outline, hinter->globals );
- }
-
- /* perform alignment control */
- ah_hinter_hint_edges( hinter, no_horz_hints, no_vert_hints );
- ah_hinter_align( hinter );
-
- /* now save the current outline into the loader's current table */
- ah_outline_save( outline, gloader );
-
- /* we now need to hint the metrics according to the change in */
- /* width/positioning that occured during the hinting process */
- {
- FT_Pos old_width, new_width;
- FT_Pos old_advance, new_advance;
- FT_Pos old_lsb, new_lsb;
- AH_Edge* edge1 = outline->vert_edges; /* leftmost edge */
- AH_Edge* edge2 = edge1 +
- outline->num_vedges - 1; /* rightmost edge */
-
-
- old_width = edge2->opos - edge1->opos;
- new_width = edge2->pos - edge1->pos;
-
- old_advance = hinter->pp2.x;
- old_lsb = edge1->opos;
- new_lsb = edge1->pos;
-
- new_advance = old_advance +
- ( new_width + new_lsb - old_width - old_lsb );
-
- hinter->pp1.x = ( ( new_lsb - old_lsb ) + 32 ) & -64;
- hinter->pp2.x = ( ( edge2->pos +
- ( old_advance - edge2->opos ) ) + 32 ) & -64;
- }
-
- /* good, we simply add the glyph to our loader's base */
- ah_loader_add( gloader );
- break;
-
- case ft_glyph_format_composite:
- {
- FT_UInt nn, num_subglyphs = slot->num_subglyphs;
- FT_UInt num_base_subgs, start_point, start_contour;
- FT_SubGlyph* subglyph;
-
-
- start_point = gloader->base.outline.n_points;
- start_contour = gloader->base.outline.n_contours;
-
- /* first of all, copy the subglyph descriptors in the glyph loader */
- error = ah_loader_check_subglyphs( gloader, num_subglyphs );
- if ( error )
- goto Exit;
-
- MEM_Copy( gloader->current.subglyphs, slot->subglyphs,
- num_subglyphs * sizeof ( FT_SubGlyph ) );
-
- gloader->current.num_subglyphs = num_subglyphs;
- num_base_subgs = gloader->base.num_subglyphs;
-
- /* now, read each subglyph independently */
- for ( nn = 0; nn < num_subglyphs; nn++ )
- {
- FT_Vector pp1, pp2;
- FT_Pos x, y;
- FT_UInt num_points, num_new_points, num_base_points;
-
-
- /* gloader.current.subglyphs can change during glyph loading due */
- /* to re-allocation -- we must recompute the current subglyph on */
- /* each iteration */
- subglyph = gloader->base.subglyphs + num_base_subgs + nn;
-
- pp1 = hinter->pp1;
- pp2 = hinter->pp2;
-
- num_base_points = gloader->base.outline.n_points;
-
- error = ah_hinter_load( hinter, subglyph->index,
- load_flags, depth + 1 );
- if ( error )
- goto Exit;
-
- /* recompute subglyph pointer */
- subglyph = gloader->base.subglyphs + num_base_subgs + nn;
-
- if ( subglyph->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS )
- {
- pp1 = hinter->pp1;
- pp2 = hinter->pp2;
- }
- else
- {
- hinter->pp1 = pp1;
- hinter->pp2 = pp2;
- }
-
- num_points = gloader->base.outline.n_points;
- num_new_points = num_points - num_base_points;
-
- /* now perform the transform required for this subglyph */
-
- if ( subglyph->flags & ( FT_SUBGLYPH_FLAG_SCALE |
- FT_SUBGLYPH_FLAG_XY_SCALE |
- FT_SUBGLYPH_FLAG_2X2 ) )
- {
- FT_Vector* cur = gloader->base.outline.points +
- num_base_points;
- FT_Vector* org = gloader->base.extra_points +
- num_base_points;
- FT_Vector* limit = cur + num_new_points;
-
-
- for ( ; cur < limit; cur++, org++ )
- {
- FT_Vector_Transform( cur, &subglyph->transform );
- FT_Vector_Transform( org, &subglyph->transform );
- }
- }
-
- /* apply offset */
-
- if ( !( subglyph->flags & FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ) )
- {
- FT_Int k = subglyph->arg1;
- FT_UInt l = subglyph->arg2;
- FT_Vector* p1;
- FT_Vector* p2;
-
-
- if ( start_point + k >= num_base_points ||
- l >= (FT_UInt)num_new_points )
- {
- error = FT_Err_Invalid_Composite;
- goto Exit;
- }
-
- l += num_base_points;
-
- /* for now, only use the current point coordinates */
- /* we may consider another approach in the near future */
- p1 = gloader->base.outline.points + start_point + k;
- p2 = gloader->base.outline.points + start_point + l;
-
- x = p1->x - p2->x;
- y = p1->y - p2->y;
- }
- else
- {
- x = FT_MulFix( subglyph->arg1, x_scale );
- y = FT_MulFix( subglyph->arg2, y_scale );
-
- x = ( x + 32 ) & -64;
- y = ( y + 32 ) & -64;
- }
-
- {
- FT_Outline dummy = gloader->base.outline;
-
-
- dummy.points += num_base_points;
- dummy.n_points = num_new_points;
-
- FT_Outline_Translate( &dummy, x, y );
- }
- }
- }
- break;
-
- default:
- /* we don't support other formats (yet?) */
- error = FT_Err_Unimplemented_Feature;
- }
-
- Hint_Metrics:
- if ( depth == 0 )
- {
- FT_BBox bbox;
-
-
- /* we must translate our final outline by -pp1.x, and compute */
- /* the new metrics */
- if ( hinter->pp1.x )
- FT_Outline_Translate( &gloader->base.outline, -hinter->pp1.x, 0 );
-
- FT_Outline_Get_CBox( &gloader->base.outline, &bbox );
- bbox.xMin &= -64;
- bbox.yMin &= -64;
- bbox.xMax = ( bbox.xMax + 63 ) & -64;
- bbox.yMax = ( bbox.yMax + 63 ) & -64;
-
- slot->metrics.width = bbox.xMax - bbox.xMin;
- slot->metrics.height = bbox.yMax - bbox.yMin;
- slot->metrics.horiBearingX = bbox.xMin;
- slot->metrics.horiBearingY = bbox.yMax;
- slot->metrics.horiAdvance = hinter->pp2.x - hinter->pp1.x;
- /* XXX: TO DO - slot->linearHoriAdvance */
-
- /* now copy outline into glyph slot */
- ah_loader_rewind( slot->loader );
- error = ah_loader_copy_points( slot->loader, gloader );
- if ( error )
- goto Exit;
-
- slot->outline = slot->loader->base.outline;
- slot->format = ft_glyph_format_outline;
- }
-
- Exit:
- return error;
- }
-
-
- /* load and hint a given glyph */
- FT_Error ah_hinter_load_glyph( AH_Hinter* hinter,
- FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_Int load_flags )
- {
- FT_Face face = slot->face;
- FT_Error error;
- FT_Fixed x_scale = size->metrics.x_scale;
- FT_Fixed y_scale = size->metrics.y_scale;
- AH_Face_Globals* face_globals = FACE_GLOBALS( face );
-
-
- /* first of all, we need to check that we're using the correct face and */
- /* global hints to load the glyph */
- if ( hinter->face != face || hinter->globals != face_globals )
- {
- hinter->face = face;
- if ( !face_globals )
- {
- error = ah_hinter_new_face_globals( hinter, face, 0 );
- if ( error )
- goto Exit;
- }
- hinter->globals = FACE_GLOBALS( face );
- face_globals = FACE_GLOBALS( face );
- }
-
- /* now, we must check the current character pixel size to see if we */
- /* need to rescale the global metrics */
- if ( face_globals->x_scale != x_scale ||
- face_globals->y_scale != y_scale )
- ah_hinter_scale_globals( hinter, x_scale, y_scale );
-
- load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_RECURSE;
-
- ah_loader_rewind( hinter->loader );
-
- error = ah_hinter_load( hinter, glyph_index, load_flags, 0 );
-
- Exit:
- return error;
- }
-
-
- /* retrieve a face's autohint globals for client applications */
- void ah_hinter_get_global_hints( AH_Hinter* hinter,
- FT_Face face,
- void** global_hints,
- long* global_len )
- {
- AH_Globals* globals = 0;
- FT_Memory memory = hinter->memory;
- FT_Error error;
-
-
- /* allocate new master globals */
- if ( ALLOC( globals, sizeof ( *globals ) ) )
- goto Fail;
-
- /* compute face globals if needed */
- if ( !FACE_GLOBALS( face ) )
- {
- error = ah_hinter_new_face_globals( hinter, face, 0 );
- if ( error )
- goto Fail;
- }
-
- *globals = FACE_GLOBALS( face )->design;
- *global_hints = globals;
- *global_len = sizeof( *globals );
-
- return;
-
- Fail:
- FREE( globals );
-
- *global_hints = 0;
- *global_len = 0;
- }
-
-
- void ah_hinter_done_global_hints( AH_Hinter* hinter,
- void* global_hints )
- {
- FT_Memory memory = hinter->memory;
-
-
- FREE( global_hints );
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahhint.h */
-/* */
-/* Glyph hinter (declaration). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHHINT_H
-#define AHHINT_H
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahglobal.h"
-
-#else
-
-#include <autohint/ahglobal.h>
-
-#endif
-
-
-#define AH_HINT_DEFAULT 0
-#define AH_HINT_NO_ALIGNMENT 1
-#define AH_HINT_NO_HORZ_EDGES 0x20000L
-#define AH_HINT_NO_VERT_EDGES 0x40000L
-
-
- /* create a new empty hinter object */
- FT_Error ah_hinter_new( FT_Library library,
- AH_Hinter** ahinter );
-
- /* Load a hinted glyph in the hinter */
- FT_Error ah_hinter_load_glyph( AH_Hinter* hinter,
- FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_Int load_flags );
-
- /* finalize a hinter object */
- void ah_hinter_done( AH_Hinter* hinter );
-
- LOCAL_DEF
- void ah_hinter_done_face_globals( AH_Face_Globals* globals );
-
- void ah_hinter_get_global_hints( AH_Hinter* hinter,
- FT_Face face,
- void** global_hints,
- long* global_len );
-
- void ah_hinter_done_global_hints( AH_Hinter* hinter,
- void* global_hints );
-
-
-#endif /* AHHINT_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahloader.h */
-/* */
-/* Glyph loader for the auto-hinting module (declaration only). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This defines the AH_GlyphLoader type in two different ways: */
- /* */
- /* - If the module is compiled within FreeType 2, the type is simply a */
- /* typedef to FT_GlyphLoader. */
- /* */
- /* - If the module is compiled as a standalone object, AH_GlyphLoader */
- /* has its own implementation. */
- /* */
- /*************************************************************************/
-
-
-#ifndef AHLOADER_H
-#define AHLOADER_H
-
-
-#ifdef _STANDALONE_
-
- typedef struct AH_GlyphLoad_
- {
- FT_Outline outline; /* outline */
- FT_UInt num_subglyphs; /* number of subglyphs */
- FT_SubGlyph* subglyphs; /* subglyphs */
- FT_Vector* extra_points; /* extra points table */
-
- } AH_GlyphLoad;
-
-
- struct AH_GlyphLoader_
- {
- FT_Memory memory;
- FT_UInt max_points;
- FT_UInt max_contours;
- FT_UInt max_subglyphs;
- FT_Bool use_extra;
-
- AH_GlyphLoad base;
- AH_GlyphLoad current;
-
- void* other; /* for possible future extensions */
- };
-
-
- LOCAL_DEF
- FT_Error AH_GlyphLoader_New( FT_Memory memory,
- AH_GlyphLoader** aloader );
-
- LOCAL_DEF
- FT_Error AH_GlyphLoader_Create_Extra( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- void AH_GlyphLoader_Done( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- void AH_GlyphLoader_Reset( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- void AH_GlyphLoader_Rewind( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- FT_Error AH_GlyphLoader_Check_Points( AH_GlyphLoader* loader,
- FT_UInt n_points,
- FT_UInt n_contours );
-
- LOCAL_DEF
- FT_Error AH_GlyphLoader_Check_Subglyphs( AH_GlyphLoader* loader,
- FT_UInt n_subs );
-
- LOCAL_DEF
- void AH_GlyphLoader_Prepare( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- void AH_GlyphLoader_Add( AH_GlyphLoader* loader );
-
- LOCAL_DEF
- FT_Error AH_GlyphLoader_Copy_Points( AH_GlyphLoader* target,
- FT_GlyphLoader* source );
-
-#else /* _STANDALONE */
-
-#include <freetype/internal/ftobjs.h>
-
- #define AH_Load FT_GlyphLoad
- #define AH_Loader FT_GlyphLoader
-
- #define ah_loader_new FT_GlyphLoader_New
- #define ah_loader_done FT_GlyphLoader_Done
- #define ah_loader_reset FT_GlyphLoader_Reset
- #define ah_loader_rewind FT_GlyphLoader_Rewind
- #define ah_loader_create_extra FT_GlyphLoader_Create_Extra
- #define ah_loader_check_points FT_GlyphLoader_Check_Points
- #define ah_loader_check_subglyphs FT_GlyphLoader_Check_Subglyphs
- #define ah_loader_prepare FT_GlyphLoader_Prepare
- #define ah_loader_add FT_GlyphLoader_Add
- #define ah_loader_copy_points FT_GlyphLoader_Copy_Points
-
-#endif /* _STANDALONE_ */
-
-#endif /* AHLOADER_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahmodule.c */
-/* */
-/* Auto-hinting module implementation (declaration). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/ftmodule.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahhint.h"
-
-#else
-
-#include <autohint/ahhint.h>
-
-#endif
-
-
- typedef struct FT_AutoHinterRec_
- {
- FT_ModuleRec root;
- AH_Hinter* hinter;
-
- } FT_AutoHinterRec;
-
-
- static
- FT_Error ft_autohinter_init( FT_AutoHinter module )
- {
- return ah_hinter_new( module->root.library, &module->hinter );
- }
-
-
- static
- void ft_autohinter_done( FT_AutoHinter module )
- {
- ah_hinter_done( module->hinter );
- }
-
-
- static
- FT_Error ft_autohinter_load( FT_AutoHinter module,
- FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_ULong load_flags )
- {
- return ah_hinter_load_glyph( module->hinter,
- slot, size, glyph_index, load_flags );
- }
-
-
- static
- void ft_autohinter_reset( FT_AutoHinter module,
- FT_Face face )
- {
- UNUSED( module );
-
- if ( face->autohint.data )
- ah_hinter_done_face_globals( (AH_Face_Globals*)(face->autohint.data) );
- }
-
-
- static
- void ft_autohinter_get_globals( FT_AutoHinter module,
- FT_Face face,
- void** global_hints,
- long* global_len )
- {
- ah_hinter_get_global_hints( module->hinter, face,
- global_hints, global_len );
- }
-
-
- static
- void ft_autohinter_done_globals( FT_AutoHinter module,
- void* global_hints )
- {
- ah_hinter_done_global_hints( module->hinter, global_hints );
- }
-
-
- static
- const FT_AutoHinter_Interface autohinter_interface =
- {
- ft_autohinter_reset,
- ft_autohinter_load,
- ft_autohinter_get_globals,
- ft_autohinter_done_globals
- };
-
-
- const FT_Module_Class autohint_module_class =
- {
- ft_module_hinter,
- sizeof ( FT_AutoHinterRec ),
-
- "autohinter",
- 0x10000L, /* version 1.0 of the autohinter */
- 0x20000L, /* requires FreeType 2.0 or above */
-
- (const void*)&autohinter_interface,
-
- (FT_Module_Constructor)ft_autohinter_init,
- (FT_Module_Destructor) ft_autohinter_done,
- (FT_Module_Requester) 0
- };
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahmodule.h */
-/* */
-/* Auto-hinting module (declaration). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHMODULE_H
-#define AHMODULE_H
-
-#include <freetype/ftmodule.h>
-
- FT_EXPORT_VAR( const FT_Module_Class ) autohint_module_class;
-
-#endif /* AHMODULE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahoptim.c */
-/* */
-/* FreeType auto hinting outline optimization (body). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This module is in charge of optimising the outlines produced by the */
- /* auto-hinter in direct mode. This is required at small pixel sizes in */
- /* order to ensure coherent spacing, among other things.. */
- /* */
- /* The technique used in this module is a simplified simulated */
- /* annealing. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/internal/ftobjs.h> /* for ALLOC_ARRAY() and FREE() */
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahoptim.h"
-
-#else
-
-#include <autohint/ahoptim.h>
-
-#endif
-
-
- /* define this macro to use brute force optimisation -- this is slow, */
- /* but a good way to perfect the distortion function `by hand' through */
- /* tweaking */
-#define AH_BRUTE_FORCE
-
-
-#define xxxAH_DEBUG_OPTIM
-
-
-#undef LOG
-#ifdef AH_DEBUG_OPTIM
-
-#define LOG( x ) optim_log##x
-
-#else
-
-#define LOG( x )
-
-#endif /* AH_DEBUG_OPTIM */
-
-
-#ifdef AH_DEBUG_OPTIM
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define FLOAT( x ) ( (float)( (x) / 64.0 ) )
-
- static
- void optim_log( const char* fmt, ... )
- {
- va_list ap;
-
-
- va_start( ap, fmt );
- vprintf( fmt, ap );
- va_end( ap );
- }
-
-
- static
- void AH_Dump_Stems( AH_Optimizer* optimizer )
- {
- int n;
- AH_Stem* stem;
-
-
- stem = optimizer->stems;
- for ( n = 0; n < optimizer->num_stems; n++, stem++ )
- {
- LOG(( " %c%2d [%.1f:%.1f]={%.1f:%.1f}="
- "<%1.f..%1.f> force=%.1f speed=%.1f\n",
- optimizer->vertical ? 'V' : 'H', n,
- FLOAT( stem->edge1->opos ), FLOAT( stem->edge2->opos ),
- FLOAT( stem->edge1->pos ), FLOAT( stem->edge2->pos ),
- FLOAT( stem->min_pos ), FLOAT( stem->max_pos ),
- FLOAT( stem->force ), FLOAT( stem->velocity ) ));
- }
- }
-
-
- static
- void AH_Dump_Stems2( AH_Optimizer* optimizer )
- {
- int n;
- AH_Stem* stem;
-
-
- stem = optimizer->stems;
- for ( n = 0; n < optimizer->num_stems; n++, stem++ )
- {
- LOG(( " %c%2d [%.1f]=<%1.f..%1.f> force=%.1f speed=%.1f\n",
- optimizer->vertical ? 'V' : 'H', n,
- FLOAT( stem->pos ),
- FLOAT( stem->min_pos ), FLOAT( stem->max_pos ),
- FLOAT( stem->force ), FLOAT( stem->velocity ) ));
- }
- }
-
-
- static
- void AH_Dump_Springs( AH_Optimizer* optimizer )
- {
- int n;
- AH_Spring* spring;
- AH_Stem* stems;
-
-
- spring = optimizer->springs;
- stems = optimizer->stems;
- LOG(( "%cSprings ", optimizer->vertical ? 'V' : 'H' ));
-
- for ( n = 0; n < optimizer->num_springs; n++, spring++ )
- {
- LOG(( " [%d-%d:%.1f:%1.f:%.1f]",
- spring->stem1 - stems, spring->stem2 - stems,
- FLOAT( spring->owidth ),
- FLOAT( spring->stem2->pos -
- ( spring->stem1->pos + spring->stem1->width ) ),
- FLOAT( spring->tension ) ));
- }
-
- LOG(( "\n" ));
- }
-
-#endif /* AH_DEBUG_OPTIM */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** COMPUTE STEMS AND SPRINGS IN AN OUTLINE ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- int valid_stem_segments( AH_Segment* seg1,
- AH_Segment* seg2 )
- {
- return seg1->serif == 0 &&
- seg2 &&
- seg2->link == seg1 &&
- seg1->pos < seg2->pos &&
- seg1->min_coord <= seg2->max_coord &&
- seg2->min_coord <= seg1->max_coord;
- }
-
-
- /* compute all stems in an outline */
- static
- int optim_compute_stems( AH_Optimizer* optimizer )
- {
- AH_Outline* outline = optimizer->outline;
- FT_Fixed scale;
- FT_Memory memory = optimizer->memory;
- FT_Error error = 0;
- FT_Int dimension;
- AH_Edge* edges;
- AH_Edge* edge_limit;
- AH_Stem** p_stems;
- FT_Int* p_num_stems;
-
-
- edges = outline->horz_edges;
- edge_limit = edges + outline->num_hedges;
- scale = outline->y_scale;
-
- p_stems = &optimizer->horz_stems;
- p_num_stems = &optimizer->num_hstems;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- AH_Stem* stems = 0;
- FT_Int num_stems = 0;
- AH_Edge* edge;
-
-
- /* first of all, count the number of stems in this direction */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- AH_Segment* seg = edge->first;
-
-
- do
- {
- if (valid_stem_segments( seg, seg->link ) )
- num_stems++;
-
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
- }
-
- /* now allocate the stems and build their table */
- if ( num_stems > 0 )
- {
- AH_Stem* stem;
-
-
- if ( ALLOC_ARRAY( stems, num_stems, AH_Stem ) )
- goto Exit;
-
- stem = stems;
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- AH_Segment* seg = edge->first;
- AH_Segment* seg2;
-
-
- do
- {
- seg2 = seg->link;
- if ( valid_stem_segments( seg, seg2 ) )
- {
- AH_Edge* edge1 = seg->edge;
- AH_Edge* edge2 = seg2->edge;
-
-
- stem->edge1 = edge1;
- stem->edge2 = edge2;
- stem->opos = edge1->opos;
- stem->pos = edge1->pos;
- stem->owidth = edge2->opos - edge1->opos;
- stem->width = edge2->pos - edge1->pos;
-
- /* compute min_coord and max_coord */
- {
- FT_Pos min_coord = seg->min_coord;
- FT_Pos max_coord = seg->max_coord;
-
-
- if ( seg2->min_coord > min_coord )
- min_coord = seg2->min_coord;
-
- if ( seg2->max_coord < max_coord )
- max_coord = seg2->max_coord;
-
- stem->min_coord = min_coord;
- stem->max_coord = max_coord;
- }
-
- /* compute minimum and maximum positions for stem -- */
- /* note that the left-most/bottom-most stem has always */
- /* a fixed position */
- if ( stem == stems || edge1->blue_edge || edge2->blue_edge )
- {
- /* this stem cannot move; it is snapped to a blue edge */
- stem->min_pos = stem->pos;
- stem->max_pos = stem->pos;
- }
- else
- {
- /* this edge can move; compute its min and max positions */
- FT_Pos pos1 = stem->opos;
- FT_Pos pos2 = pos1 + stem->owidth - stem->width;
- FT_Pos min1 = pos1 & -64;
- FT_Pos min2 = pos2 & -64;
-
-
- stem->min_pos = min1;
- stem->max_pos = min1 + 64;
- if ( min2 < min1 )
- stem->min_pos = min2;
- else
- stem->max_pos = min2 + 64;
-
- /* XXX: just to see what it does */
- stem->max_pos += 64;
-
- /* just for the case where direct hinting did some */
- /* incredible things (e.g. blue edge shifts) */
- if ( stem->min_pos > stem->pos )
- stem->min_pos = stem->pos;
-
- if ( stem->max_pos < stem->pos )
- stem->max_pos = stem->pos;
- }
-
- stem->velocity = 0;
- stem->force = 0;
-
- stem++;
- }
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
- }
- }
-
- *p_stems = stems;
- *p_num_stems = num_stems;
-
- edges = outline->vert_edges;
- edge_limit = edges + outline->num_vedges;
- scale = outline->x_scale;
-
- p_stems = &optimizer->vert_stems;
- p_num_stems = &optimizer->num_vstems;
- }
-
- Exit:
-
-#ifdef AH_DEBUG_OPTIM
- AH_Dump_Stems( optimizer );
-#endif
-
- return error;
- }
-
-
- /* returns the spring area between two stems, 0 if none */
- static
- FT_Pos stem_spring_area( AH_Stem* stem1,
- AH_Stem* stem2 )
- {
- FT_Pos area1 = stem1->max_coord - stem1->min_coord;
- FT_Pos area2 = stem2->max_coord - stem2->min_coord;
- FT_Pos min = stem1->min_coord;
- FT_Pos max = stem1->max_coord;
- FT_Pos area;
-
-
- /* order stems */
- if ( stem2->opos <= stem1->opos + stem1->owidth )
- return 0;
-
- if ( min < stem2->min_coord )
- min = stem2->min_coord;
-
- if ( max < stem2->max_coord )
- max = stem2->max_coord;
-
- area = ( max-min );
- if ( 2 * area < area1 && 2 * area < area2 )
- area = 0;
-
- return area;
- }
-
-
- /* compute all springs in an outline */
- static
- int optim_compute_springs( AH_Optimizer* optimizer )
- {
- /* basically, a spring exists between two stems if most of their */
- /* surface is aligned */
- FT_Memory memory = optimizer->memory;
-
- AH_Stem* stems;
- AH_Stem* stem_limit;
- AH_Stem* stem;
- int dimension;
- int error = 0;
-
- FT_Int* p_num_springs;
- AH_Spring** p_springs;
-
-
- stems = optimizer->horz_stems;
- stem_limit = stems + optimizer->num_hstems;
-
- p_springs = &optimizer->horz_springs;
- p_num_springs = &optimizer->num_hsprings;
-
- for ( dimension = 1; dimension >= 0; dimension-- )
- {
- FT_Int num_springs = 0;
- AH_Spring* springs = 0;
-
-
- /* first of all, count stem springs */
- for ( stem = stems; stem + 1 < stem_limit; stem++ )
- {
- AH_Stem* stem2;
-
-
- for ( stem2 = stem+1; stem2 < stem_limit; stem2++ )
- if ( stem_spring_area( stem, stem2 ) )
- num_springs++;
- }
-
- /* then allocate and build the springs table */
- if ( num_springs > 0 )
- {
- AH_Spring* spring;
-
-
- /* allocate table of springs */
- if ( ALLOC_ARRAY( springs, num_springs, AH_Spring ) )
- goto Exit;
-
- /* fill the springs table */
- spring = springs;
- for ( stem = stems; stem+1 < stem_limit; stem++ )
- {
- AH_Stem* stem2;
- FT_Pos area;
-
-
- for ( stem2 = stem + 1; stem2 < stem_limit; stem2++ )
- {
- area = stem_spring_area( stem, stem2 );
- if ( area )
- {
- /* add a new spring here */
- spring->stem1 = stem;
- spring->stem2 = stem2;
- spring->owidth = stem2->opos - ( stem->opos + stem->owidth );
- spring->tension = 0;
-
- spring++;
- }
- }
- }
- }
- *p_num_springs = num_springs;
- *p_springs = springs;
-
- stems = optimizer->vert_stems;
- stem_limit = stems + optimizer->num_vstems;
-
- p_springs = &optimizer->vert_springs;
- p_num_springs = &optimizer->num_vsprings;
- }
-
- Exit:
-
-#ifdef AH_DEBUG_OPTIM
- AH_Dump_Springs( optimizer );
-#endif
-
- return error;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** OPTIMIZE THROUGH MY STRANGE SIMULATED ANNEALING ALGO ;-) ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-#ifndef AH_BRUTE_FORCE
-
- /* compute all spring tensions */
- static
- void optim_compute_tensions( AH_Optimizer* optimizer )
- {
- AH_Spring* spring = optimizer->springs;
- AH_Spring* limit = spring + optimizer->num_springs;
-
-
- for ( ; spring < limit; spring++ )
- {
- AH_Stem* stem1 = spring->stem1;
- AH_Stem* stem2 = spring->stem2;
- FT_Int status;
-
- FT_Pos width;
- FT_Pos tension;
- FT_Pos sign;
-
-
- /* compute the tension; it simply is -K*(new_width-old_width) */
- width = stem2->pos - ( stem1->pos + stem1->width );
- tension = width - spring->owidth;
-
- sign = 1;
- if ( tension < 0 )
- {
- sign = -1;
- tension = -tension;
- }
-
- if ( width <= 0 )
- tension = 32000;
- else
- tension = ( tension << 10 ) / width;
-
- tension = -sign * FT_MulFix( tension, optimizer->tension_scale );
- spring->tension = tension;
-
- /* now, distribute tension among the englobing stems, if they */
- /* are able to move */
- status = 0;
- if ( stem1->pos <= stem1->min_pos )
- status |= 1;
- if ( stem2->pos >= stem2->max_pos )
- status |= 2;
-
- if ( !status )
- tension /= 2;
-
- if ( ( status & 1 ) == 0 )
- stem1->force -= tension;
-
- if ( ( status & 2 ) == 0 )
- stem2->force += tension;
- }
- }
-
-
- /* compute all stem movements -- returns 0 if nothing moved */
- static
- int optim_compute_stem_movements( AH_Optimizer* optimizer )
- {
- AH_Stem* stems = optimizer->stems;
- AH_Stem* limit = stems + optimizer->num_stems;
- AH_Stem* stem = stems;
- int moved = 0;
-
-
- /* set initial forces to velocity */
- for ( stem = stems; stem < limit; stem++ )
- {
- stem->force = stem->velocity;
- stem->velocity /= 2; /* XXX: Heuristics */
- }
-
- /* compute the sum of forces applied on each stem */
- optim_compute_tensions( optimizer );
-
-#ifdef AH_DEBUG_OPTIM
- AH_Dump_Springs( optimizer );
- AH_Dump_Stems2( optimizer );
-#endif
-
- /* now, see whether something can move */
- for ( stem = stems; stem < limit; stem++ )
- {
- if ( stem->force > optimizer->tension_threshold )
- {
- /* there is enough tension to move the stem to the right */
- if ( stem->pos < stem->max_pos )
- {
- stem->pos += 64;
- stem->velocity = stem->force / 2;
- moved = 1;
- }
- else
- stem->velocity = 0;
- }
- else if ( stem->force < optimizer->tension_threshold )
- {
- /* there is enough tension to move the stem to the left */
- if ( stem->pos > stem->min_pos )
- {
- stem->pos -= 64;
- stem->velocity = stem->force / 2;
- moved = 1;
- }
- else
- stem->velocity = 0;
- }
- }
-
- /* return 0 if nothing moved */
- return moved;
- }
-
-#endif /* AH_BRUTE_FORCE */
-
-
- /* compute current global distortion from springs */
- static
- FT_Pos optim_compute_distortion( AH_Optimizer* optimizer )
- {
- AH_Spring* spring = optimizer->springs;
- AH_Spring* limit = spring + optimizer->num_springs;
- FT_Pos distortion = 0;
-
-
- for ( ; spring < limit; spring++ )
- {
- AH_Stem* stem1 = spring->stem1;
- AH_Stem* stem2 = spring->stem2;
- FT_Pos width;
-
- width = stem2->pos - ( stem1->pos + stem1->width );
- width -= spring->owidth;
- if ( width < 0 )
- width = -width;
-
- distortion += width;
- }
-
- return distortion;
- }
-
-
- /* record stems configuration in `best of' history */
- static
- void optim_record_configuration( AH_Optimizer* optimizer )
- {
- FT_Pos distortion;
- AH_Configuration* configs = optimizer->configs;
- AH_Configuration* limit = configs + optimizer->num_configs;
- AH_Configuration* config;
-
-
- distortion = optim_compute_distortion( optimizer );
- LOG(( "config distortion = %.1f ", FLOAT( distortion * 64 ) ));
-
- /* check that we really need to add this configuration to our */
- /* sorted history */
- if ( limit > configs && limit[-1].distortion < distortion )
- {
- LOG(( "ejected\n" ));
- return;
- }
-
- /* add new configuration at the end of the table */
- {
- int n;
-
-
- config = limit;
- if ( optimizer->num_configs < AH_MAX_CONFIGS )
- optimizer->num_configs++;
- else
- config--;
-
- config->distortion = distortion;
-
- for ( n = 0; n < optimizer->num_stems; n++ )
- config->positions[n] = optimizer->stems[n].pos;
- }
-
- /* move the current configuration towards the front of the list */
- /* when necessary -- yes this is slow bubble sort ;-) */
- while ( config > configs && config[0].distortion < config[-1].distortion )
- {
- AH_Configuration temp;
-
-
- config--;
- temp = config[0];
- config[0] = config[1];
- config[1] = temp;
- }
- LOG(( "recorded!\n" ));
- }
-
-
-#ifdef AH_BRUTE_FORCE
-
- /* optimize outline in a single direction */
- static
- void optim_compute( AH_Optimizer* optimizer )
- {
- int n;
- FT_Bool moved;
-
- AH_Stem* stem = optimizer->stems;
- AH_Stem* limit = stem + optimizer->num_stems;
-
-
- /* empty, exit */
- if ( stem >= limit )
- return;
-
- optimizer->num_configs = 0;
-
- stem = optimizer->stems;
- for ( ; stem < limit; stem++ )
- stem->pos = stem->min_pos;
-
- do
- {
- /* record current configuration */
- optim_record_configuration( optimizer );
-
- /* now change configuration */
- moved = 0;
- for ( stem = optimizer->stems; stem < limit; stem++ )
- {
- if ( stem->pos < stem->max_pos )
- {
- stem->pos += 64;
- moved = 1;
- break;
- }
-
- stem->pos = stem->min_pos;
- }
- } while ( moved );
-
- /* now, set the best stem positions */
- for ( n = 0; n < optimizer->num_stems; n++ )
- {
- AH_Stem* stem = optimizer->stems + n;
- FT_Pos pos = optimizer->configs[0].positions[n];
-
-
- stem->edge1->pos = pos;
- stem->edge2->pos = pos + stem->width;
-
- stem->edge1->flags |= ah_edge_done;
- stem->edge2->flags |= ah_edge_done;
- }
- }
-
-#else /* AH_BRUTE_FORCE */
-
- /* optimize outline in a single direction */
- static
- void optim_compute( AH_Optimizer* optimizer )
- {
- int n, counter, counter2;
-
-
- optimizer->num_configs = 0;
- optimizer->tension_scale = 0x80000L;
- optimizer->tension_threshold = 64;
-
- /* record initial configuration threshold */
- optim_record_configuration( optimizer );
-
- counter = 0;
- for ( counter2 = optimizer->num_stems*8; counter2 >= 0; counter2-- )
- {
- if ( counter == 0 )
- counter = 2 * optimizer->num_stems;
-
- if ( !optim_compute_stem_movements( optimizer ) )
- break;
-
- optim_record_configuration( optimizer );
-
- counter--;
- if ( counter == 0 )
- optimizer->tension_scale /= 2;
- }
-
- /* now, set the best stem positions */
- for ( n = 0; n < optimizer->num_stems; n++ )
- {
- AH_Stem* stem = optimizer->stems + n;
- FT_Pos pos = optimizer->configs[0].positions[n];
-
-
- stem->edge1->pos = pos;
- stem->edge2->pos = pos + stem->width;
-
- stem->edge1->flags |= ah_edge_done;
- stem->edge2->flags |= ah_edge_done;
- }
- }
-
-#endif /* AH_BRUTE_FORCE */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** HIGH-LEVEL OPTIMIZER API ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* releases the optimization data */
- void AH_Optimizer_Done( AH_Optimizer* optimizer )
- {
- if ( optimizer )
- {
- FT_Memory memory = optimizer->memory;
-
-
- FREE( optimizer->horz_stems );
- FREE( optimizer->vert_stems );
- FREE( optimizer->horz_springs );
- FREE( optimizer->vert_springs );
- FREE( optimizer->positions );
- }
- }
-
-
- /* loads the outline into the optimizer */
- int AH_Optimizer_Init( AH_Optimizer* optimizer,
- AH_Outline* outline,
- FT_Memory memory )
- {
- FT_Error error;
-
-
- MEM_Set( optimizer, 0, sizeof ( *optimizer ) );
- optimizer->outline = outline;
- optimizer->memory = memory;
-
- LOG(( "initializing new optimizer\n" ));
- /* compute stems and springs */
- error = optim_compute_stems ( optimizer ) ||
- optim_compute_springs( optimizer );
- if ( error )
- goto Fail;
-
- /* allocate stem positions history and configurations */
- {
- int n, max_stems;
-
-
- max_stems = optimizer->num_hstems;
- if ( max_stems < optimizer->num_vstems )
- max_stems = optimizer->num_vstems;
-
- if ( ALLOC_ARRAY( optimizer->positions,
- max_stems * AH_MAX_CONFIGS, FT_Pos ) )
- goto Fail;
-
- optimizer->num_configs = 0;
- for ( n = 0; n < AH_MAX_CONFIGS; n++ )
- optimizer->configs[n].positions = optimizer->positions +
- n * max_stems;
- }
-
- return error;
-
- Fail:
- AH_Optimizer_Done( optimizer );
- return error;
- }
-
-
- /* compute optimal outline */
- void AH_Optimizer_Compute( AH_Optimizer* optimizer )
- {
- optimizer->num_stems = optimizer->num_hstems;
- optimizer->stems = optimizer->horz_stems;
- optimizer->num_springs = optimizer->num_hsprings;
- optimizer->springs = optimizer->horz_springs;
-
- if ( optimizer->num_springs > 0 )
- {
- LOG(( "horizontal optimization ------------------------\n" ));
- optim_compute( optimizer );
- }
-
- optimizer->num_stems = optimizer->num_vstems;
- optimizer->stems = optimizer->vert_stems;
- optimizer->num_springs = optimizer->num_vsprings;
- optimizer->springs = optimizer->vert_springs;
-
- if ( optimizer->num_springs )
- {
- LOG(( "vertical optimization --------------------------\n" ));
- optim_compute( optimizer );
- }
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahoptim.h */
-/* */
-/* FreeType auto hinting outline optimization (declaration). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHOPTIM_H
-#define AHOPTIM_H
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahtypes.h"
-
-#else
-
-#include <autohint/ahtypes.h>
-
-#endif
-
-
- /* the maximal number of stem configurations to record */
- /* during optimization */
-#define AH_MAX_CONFIGS 8
-
-
- typedef struct AH_Stem_
- {
- FT_Pos pos; /* current position */
- FT_Pos velocity; /* current velocity */
- FT_Pos force; /* sum of current forces */
- FT_Pos width; /* normalized width */
-
- FT_Pos min_pos; /* minimum grid position */
- FT_Pos max_pos; /* maximum grid position */
-
- AH_Edge* edge1; /* left/bottom edge */
- AH_Edge* edge2; /* right/top edge */
-
- FT_Pos opos; /* original position */
- FT_Pos owidth; /* original width */
-
- FT_Pos min_coord; /* minimum coordinate */
- FT_Pos max_coord; /* maximum coordinate */
-
- } AH_Stem;
-
-
- /* A spring between two stems */
- typedef struct AH_Spring_
- {
- AH_Stem* stem1;
- AH_Stem* stem2;
- FT_Pos owidth; /* original width */
- FT_Pos tension; /* current tension */
-
- } AH_Spring;
-
-
- /* A configuration records the position of each stem at a given time */
- /* as well as the associated distortion */
- typedef struct AH_Configuration_
- {
- FT_Pos* positions;
- FT_Long distortion;
-
- } AH_Configuration;
-
-
- typedef struct AH_Optimizer_
- {
- FT_Memory memory;
- AH_Outline* outline;
-
- FT_Int num_hstems;
- AH_Stem* horz_stems;
-
- FT_Int num_vstems;
- AH_Stem* vert_stems;
-
- FT_Int num_hsprings;
- FT_Int num_vsprings;
- AH_Spring* horz_springs;
- AH_Spring* vert_springs;
-
- FT_Int num_configs;
- AH_Configuration configs[AH_MAX_CONFIGS];
- FT_Pos* positions;
-
- /* during each pass, use these instead */
- FT_Int num_stems;
- AH_Stem* stems;
-
- FT_Int num_springs;
- AH_Spring* springs;
- FT_Bool vertical;
-
- FT_Fixed tension_scale;
- FT_Pos tension_threshold;
-
- } AH_Optimizer;
-
-
- /* loads the outline into the optimizer */
- int AH_Optimizer_Init( AH_Optimizer* optimizer,
- AH_Outline* outline,
- FT_Memory memory );
-
-
- /* compute optimal outline */
- void AH_Optimizer_Compute( AH_Optimizer* optimizer );
-
-
- /* release the optimization data */
- void AH_Optimizer_Done( AH_Optimizer* optimizer );
-
-
-#endif /* AHOPTIM_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ahtypes.h */
-/* */
-/* General types and definitions for the auto-hint module */
-/* (specification only). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#ifndef AHTYPES_H
-#define AHTYPES_H
-
-
-#include <freetype/internal/ftobjs.h> /* for freetype.h + LOCAL_DEF etc. */
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahloader.h"
-
-#else
-
-#include <autohint/ahloader.h>
-
-#endif
-
-
-#define xxAH_DEBUG
-
-
-#ifdef AH_DEBUG
-
-#include <stdio.h>
-
-#define AH_LOG( x ) printf##x
-
-#else
-
-#define AH_LOG( x ) do ; while ( 0 ) /* nothing */
-
-#endif
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** COMPILE-TIME BUILD OPTIONS ****/
- /**** ****/
- /**** Toggle these configuration macros to experiment with `features' ****/
- /**** of the auto-hinter. ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* If this option is defined, only strong interpolation will be used to */
- /* place the points between edges. Otherwise, `smooth' points are */
- /* detected and later hinted through weak interpolation to correct some */
- /* unpleasant artefacts. */
- /* */
-#undef AH_OPTION_NO_WEAK_INTERPOLATION
-
-
- /*************************************************************************/
- /* */
- /* If this option is defined, only weak interpolation will be used to */
- /* place the points between edges. Otherwise, `strong' points are */
- /* detected and later hinted through strong interpolation to correct */
- /* some unpleasant artefacts. */
- /* */
-#undef AH_OPTION_NO_STRONG_INTERPOLATION
-
-
- /*************************************************************************/
- /* */
- /* Undefine this macro if you don't want to hint the metrics. There is */
- /* no reason to do this (at least for non-CJK scripts), except for */
- /* experimentation. */
- /* */
-#define AH_HINT_METRICS
-
-
- /*************************************************************************/
- /* */
- /* Define this macro if you do not want to insert extra edges at a */
- /* glyph's x and y extremum (if there isn't one already available). */
- /* This helps to reduce a number of artefacts and allows hinting of */
- /* metrics. */
- /* */
-#undef AH_OPTION_NO_EXTREMUM_EDGES
-
-
- /* don't touch for now */
-#define AH_MAX_WIDTHS 12
-#define AH_MAX_HEIGHTS 12
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** TYPE DEFINITIONS ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* see agangles.h */
- typedef FT_Int AH_Angle;
-
-
- /* hint flags */
-#define ah_flah_none 0
-
- /* bezier control points flags */
-#define ah_flah_conic 1
-#define ah_flah_cubic 2
-#define ah_flah_control ( ah_flah_conic | ah_flah_cubic )
-
- /* extrema flags */
-#define ah_flah_extrema_x 4
-#define ah_flah_extrema_y 8
-
- /* roundness */
-#define ah_flah_round_x 16
-#define ah_flah_round_y 32
-
- /* touched */
-#define ah_flah_touch_x 64
-#define ah_flah_touch_y 128
-
- /* weak interpolation */
-#define ah_flah_weak_interpolation 256
-
- typedef FT_Int AH_Flags;
-
-
- /* edge hint flags */
-#define ah_edge_normal 0
-#define ah_edge_round 1
-#define ah_edge_serif 2
-#define ah_edge_done 4
-
- typedef FT_Int AH_Edge_Flags;
-
-
- /* hint directions -- the values are computed so that two vectors are */
- /* in opposite directions iff `dir1+dir2 == 0' */
-#define ah_dir_none 4
-#define ah_dir_right 1
-#define ah_dir_left -1
-#define ah_dir_up 2
-#define ah_dir_down -2
-
- typedef FT_Int AH_Direction;
-
-
- typedef struct AH_Point AH_Point;
- typedef struct AH_Segment AH_Segment;
- typedef struct AH_Edge AH_Edge;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* AH_Point */
- /* */
- /* <Description> */
- /* A structure used to model an outline point to the AH_Outline type. */
- /* */
- /* <Fields> */
- /* flags :: The current point hint flags. */
- /* */
- /* ox, oy :: The current original scaled coordinates. */
- /* */
- /* fx, fy :: The current coordinates in font units. */
- /* */
- /* x, y :: The current hinter coordinates. */
- /* */
- /* u, v :: Point coordinates -- meaning varies with context. */
- /* */
- /* in_dir :: The direction of the inwards vector (prev->point). */
- /* */
- /* out_dir :: The direction of the outwards vector (point->next). */
- /* */
- /* in_angle :: The angle of the inwards vector. */
- /* */
- /* out_angle :: The angle of the outwards vector. */
- /* */
- /* next :: The next point in same contour. */
- /* */
- /* prev :: The previous point in same contour. */
- /* */
- struct AH_Point
- {
- AH_Flags flags; /* point flags used by hinter */
- FT_Pos ox, oy;
- FT_Pos fx, fy;
- FT_Pos x, y;
- FT_Pos u, v;
-
- AH_Direction in_dir; /* direction of inwards vector */
- AH_Direction out_dir; /* direction of outwards vector */
-
- AH_Angle in_angle;
- AH_Angle out_angle;
-
- AH_Point* next; /* next point in contour */
- AH_Point* prev; /* previous point in contour */
- };
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* AH_Segment */
- /* */
- /* <Description> */
- /* A structure used to describe an edge segment to the auto-hinter. */
- /* A segment is simply a sequence of successive points located on the */
- /* same horizontal or vertical `position', in a given direction. */
- /* */
- /* <Fields> */
- /* flags :: The segment edge flags (straight, rounded, etc.). */
- /* */
- /* dir :: The segment direction. */
- /* */
- /* first :: The first point in the segment. */
- /* */
- /* last :: The last point in the segment. */
- /* */
- /* contour :: A pointer to the first point of the segment's */
- /* contour. */
- /* */
- /* pos :: The segment position in font units. */
- /* */
- /* size :: The segment size. */
- /* */
- /* edge :: The edge of the current segment. */
- /* */
- /* edge_next :: The next segment on the same edge. */
- /* */
- /* link :: The pairing segment for this edge. */
- /* */
- /* serif :: The primary segment for serifs. */
- /* */
- /* num_linked :: The number of other segments that link to this one. */
- /* */
- /* score :: Used to score the segment when selecting them. */
- /* */
- struct AH_Segment
- {
- AH_Edge_Flags flags;
- AH_Direction dir;
-
- AH_Point* first; /* first point in edge segment */
- AH_Point* last; /* last point in edge segment */
- AH_Point** contour; /* ptr to first point of segment's contour */
-
- FT_Pos pos; /* position of segment */
- FT_Pos min_coord; /* minimum coordinate of segment */
- FT_Pos max_coord; /* maximum coordinate of segment */
-
- AH_Edge* edge;
- AH_Segment* edge_next;
-
- AH_Segment* link; /* link segment */
- AH_Segment* serif; /* primary segment for serifs */
- FT_Pos num_linked; /* number of linked segments */
- FT_Int score;
- };
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* AH_Edge */
- /* */
- /* <Description> */
- /* A structure used to describe an edge, which really is a horizontal */
- /* or vertical coordinate to be hinted depending on the segments */
- /* located on it. */
- /* */
- /* <Fields> */
- /* flags :: The segment edge flags (straight, rounded, etc.). */
- /* */
- /* dir :: The main segment direction on this edge. */
- /* */
- /* first :: The first edge segment. */
- /* */
- /* last :: The last edge segment. */
- /* */
- /* fpos :: The original edge position in font units. */
- /* */
- /* opos :: The original scaled edge position. */
- /* */
- /* pos :: The hinted edge position. */
- /* */
- /* link :: The linked edge. */
- /* */
- /* serif :: The serif edge. */
- /* */
- /* num_paired :: The number of other edges that pair to this one. */
- /* */
- /* score :: Used to score the edge when selecting them. */
- /* */
- /* blue_edge :: Indicate the blue zone edge this edge is related to. */
- /* Only set for some of the horizontal edges in a Latin */
- /* font. */
- /* */
- struct AH_Edge
- {
- AH_Edge_Flags flags;
- AH_Direction dir;
-
- AH_Segment* first;
- AH_Segment* last;
-
- FT_Pos fpos;
- FT_Pos opos;
- FT_Pos pos;
-
- AH_Edge* link;
- AH_Edge* serif;
- FT_Int num_linked;
-
- FT_Int score;
- FT_Pos* blue_edge;
- };
-
-
- /* an outline as seen by the hinter */
- typedef struct AH_Outline_
- {
- FT_Memory memory;
-
- AH_Direction vert_major_dir; /* vertical major direction */
- AH_Direction horz_major_dir; /* horizontal major direction */
-
- FT_Fixed x_scale;
- FT_Fixed y_scale;
- FT_Pos edge_distance_threshold;
-
- FT_Int max_points;
- FT_Int num_points;
- AH_Point* points;
-
- FT_Int max_contours;
- FT_Int num_contours;
- AH_Point** contours;
-
- FT_Int num_hedges;
- AH_Edge* horz_edges;
-
- FT_Int num_vedges;
- AH_Edge* vert_edges;
-
- FT_Int num_hsegments;
- AH_Segment* horz_segments;
-
- FT_Int num_vsegments;
- AH_Segment* vert_segments;
-
- } AH_Outline;
-
-
-#define ah_blue_capital_top 0 /* THEZOCQS */
-#define ah_blue_capital_bottom ( ah_blue_capital_top + 1 ) /* HEZLOCUS */
-#define ah_blue_small_top ( ah_blue_capital_bottom + 1 ) /* xzroesc */
-#define ah_blue_small_bottom ( ah_blue_small_top + 1 ) /* xzroesc */
-#define ah_blue_small_minor ( ah_blue_small_bottom + 1 ) /* pqgjy */
-#define ah_blue_max ( ah_blue_small_minor + 1 )
-
- typedef FT_Int AH_Blue;
-
-
-#define ah_hinter_monochrome 1
-#define ah_hinter_optimize 2
-
- typedef FT_Int AH_Hinter_Flags;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* AH_Globals */
- /* */
- /* <Description> */
- /* Holds the global metrics for a given font face (be it in design */
- /* units or scaled pixel values). */
- /* */
- /* <Fields> */
- /* num_widths :: The number of widths. */
- /* */
- /* num_heights :: The number of heights. */
- /* */
- /* widths :: Snap widths, including standard one. */
- /* */
- /* heights :: Snap height, including standard one. */
- /* */
- /* blue_refs :: The reference positions of blue zones. */
- /* */
- /* blue_shoots :: The overshoot positions of blue zones. */
- /* */
- typedef struct AH_Globals_
- {
- FT_Int num_widths;
- FT_Int num_heights;
-
- FT_Pos widths [AH_MAX_WIDTHS];
- FT_Pos heights[AH_MAX_HEIGHTS];
-
- FT_Pos blue_refs [ah_blue_max];
- FT_Pos blue_shoots[ah_blue_max];
-
- } AH_Globals;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* AH_Face_Globals */
- /* */
- /* <Description> */
- /* Holds the complete global metrics for a given font face (i.e., the */
- /* design units version + a scaled version + the current scales */
- /* used). */
- /* */
- /* <Fields> */
- /* face :: A handle to the source face object */
- /* */
- /* design :: The globals in font design units. */
- /* */
- /* scaled :: Scaled globals in sub-pixel values. */
- /* */
- /* x_scale :: The current horizontal scale. */
- /* */
- /* y_scale :: The current vertical scale. */
- /* */
- typedef struct AH_Face_Globals_
- {
- FT_Face face;
- AH_Globals design;
- AH_Globals scaled;
- FT_Fixed x_scale;
- FT_Fixed y_scale;
- FT_Bool control_overshoot;
-
- } AH_Face_Globals;
-
-
- typedef struct AH_Hinter
- {
- FT_Memory memory;
- AH_Hinter_Flags flags;
-
- FT_Int algorithm;
- FT_Face face;
-
- AH_Face_Globals* globals;
-
- AH_Outline* glyph;
-
- AH_Loader* loader;
- FT_Vector pp1;
- FT_Vector pp2;
-
- } AH_Hinter;
-
-
-#endif /* AHTYPES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* autohint.c */
-/* */
-/* Automatic Hinting wrapper (body only). */
-/* */
-/* Copyright 2000 Catharon Productions Inc. */
-/* Author: David Turner */
-/* */
-/* This file is part of the Catharon Typography Project and shall only */
-/* be used, modified, and distributed under the terms of the Catharon */
-/* Open Source License that should come with this file under the name */
-/* `CatharonLicense.txt'. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/* Note that this license is compatible with the FreeType license. */
-/* */
-/***************************************************************************/
-
-
-#define FT_MAKE_OPTION_SINGLE_OBJECT
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ahangles.c"
-#include "ahglyph.c"
-#include "ahglobal.c"
-#include "ahhint.c"
-#include "ahmodule.c"
-
-#else
-
-#include <autohint/ahangles.c>
-#include <autohint/ahglyph.c>
-#include <autohint/ahglobal.c>
-#include <autohint/ahhint.c>
-#include <autohint/ahmodule.c>
-
-#endif
-
-
-/* END */
+++ /dev/null
-#!/usr/bin/env python
-#
-
-#
-# autohint math table builder
-#
-
-
-# Copyright 1996-2000 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-import math
-
-ag_pi = 256
-
-def print_arctan( atan_bits ):
- atan_base = 1 << atan_bits
-
- print " static AH_Angle ag_arctan[1L << AG_ATAN_BITS] ="
- print " {"
-
- count = 0
- line = " "
-
- for n in range( atan_base ):
- comma = ","
- if ( n == atan_base - 1 ):
- comma = ""
-
- angle = math.atan( n * 1.0 / atan_base ) / math.pi * ag_pi
- line = line + " " + repr( int( angle + 0.5 ) ) + comma
- count = count + 1;
- if ( count == 8 ):
- count = 0
- print line
- line = " "
-
- if ( count > 0 ):
- print line
- print " };"
-
-
-# This routine is not used currently.
-#
-def print_sines():
- print " static FT_Fixed ah_sines[AG_HALF_PI + 1] ="
- print " {"
-
- count = 0
- line = " "
-
- for n in range( ag_pi / 2 ):
- sinus = math.sin( n * math.pi / ag_pi )
- line = line + " " + repr( int( 65536.0 * sinus ) ) + ","
- count = count + 1
- if ( count == 8 ):
- count = 0
- print line
- line = " "
-
- if ( count > 0 ):
- print line
- print " 65536"
- print " };"
-
-
-print_arctan( 8 )
-print
-
-
-# END
+++ /dev/null
-make_module_list: add_autohint_module
-
-add_autohint_module:
- $(OPEN_DRIVER)autohint_module_class$(CLOSE_DRIVER)
- $(ECHO_DRIVER)autohint $(ECHO_DRIVER_DESC)automatic hinting module$(ECHO_DRIVER_DONE)
-
-# EOF
+++ /dev/null
-#
-# FreeType 2 auto-hinter module configuration rules
-#
-
-
-# Copyright 2000 Catharon Productions Inc.
-# Author: David Turner
-#
-# This file is part of the Catharon Typography Project and shall only
-# be used, modified, and distributed under the terms of the Catharon
-# Open Source License that should come with this file under the name
-# `CatharonLicense.txt'. By continuing to use, modify, or distribute
-# this file you indicate that you have read the license and
-# understand and accept it fully.
-#
-# Note that this license is compatible with the FreeType license.
-
-
-# AUTO driver directory
-#
-AUTO_DIR := $(SRC_)autohint
-AUTO_DIR_ := $(AUTO_DIR)$(SEP)
-
-
-# compilation flags for the driver
-#
-AUTO_COMPILE := $(FT_COMPILE)
-
-
-# AUTO driver sources (i.e., C files)
-#
-AUTO_DRV_SRC := $(AUTO_DIR_)ahangles.c \
- $(AUTO_DIR_)ahglobal.c \
- $(AUTO_DIR_)ahglyph.c \
- $(AUTO_DIR_)ahhint.c \
- $(AUTO_DIR_)ahmodule.c
-
-# AUTO driver headers
-#
-AUTO_DRV_H := $(AUTO_DRV_SRC:%c=%h) \
- $(AUTO_DIR_)ahloader.h \
- $(AUTO_DIR_)ahtypes.h
-
-
-# AUTO driver object(s)
-#
-# AUTO_DRV_OBJ_M is used during `multi' builds.
-# AUTO_DRV_OBJ_S is used during `single' builds.
-#
-AUTO_DRV_OBJ_M := $(AUTO_DRV_SRC:$(AUTO_DIR_)%.c=$(OBJ_)%.$O)
-AUTO_DRV_OBJ_S := $(OBJ_)autohint.$O
-
-# AUTO driver source file for single build
-#
-AUTO_DRV_SRC_S := $(AUTO_DIR_)autohint.c
-
-
-# AUTO driver - single object
-#
-$(AUTO_DRV_OBJ_S): $(AUTO_DRV_SRC_S) $(AUTO_DRV_SRC) \
- $(FREETYPE_H) $(AUTO_DRV_H)
- $(AUTO_COMPILE) $T$@ $(AUTO_DRV_SRC_S)
-
-
-# AUTO driver - multiple objects
-#
-$(OBJ_)%.$O: $(AUTO_DIR_)%.c $(FREETYPE_H) $(AUTO_DRV_H)
- $(AUTO_COMPILE) $T$@ $<
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(AUTO_DRV_OBJ_S)
-DRV_OBJS_M += $(AUTO_DRV_OBJ_M)
-
-
-# EOF
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftbase.c */
-/* */
-/* Single object library component (body only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "ftcalc.c"
-#include "ftobjs.c"
-#include "ftstream.c"
-#include "ftlist.c"
-#include "ftoutln.c"
-#include "ftextend.c"
-#include "ftnames.c"
-
-#else /* FT_FLAT_COMPILE */
-
-#include <base/ftcalc.c>
-#include <base/ftobjs.c>
-#include <base/ftstream.c>
-#include <base/ftlist.c>
-#include <base/ftoutln.c>
-#include <base/ftextend.c>
-#include <base/ftnames.c>
-
-#endif /* FT_FLAT_COMPILE */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftcalc.c */
-/* */
-/* Arithmetic computations (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* Support for 1-complement arithmetic has been totally dropped in this */
- /* release. You can still write your own code if you need it. */
- /* */
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* Implementing basic computation routines. */
- /* */
- /* FT_MulDiv(), FT_MulFix(), and FT_DivFix() are declared in freetype.h. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/internal/ftcalc.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftobjs.h> /* for ABS() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_calc
-
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
- static const FT_Long ft_square_roots[63] =
- {
- 1L, 1L, 2L, 3L, 4L, 5L, 8L, 11L,
- 16L, 22L, 32L, 45L, 64L, 90L, 128L, 181L,
- 256L, 362L, 512L, 724L, 1024L, 1448L, 2048L, 2896L,
- 4096L, 5892L, 8192L, 11585L, 16384L, 23170L, 32768L, 46340L,
-
- 65536L, 92681L, 131072L, 185363L, 262144L, 370727L,
- 524288L, 741455L, 1048576L, 1482910L, 2097152L, 2965820L,
- 4194304L, 5931641L, 8388608L, 11863283L, 16777216L, 23726566L,
-
- 33554432L, 47453132L, 67108864L, 94906265L,
- 134217728L, 189812531L, 268435456L, 379625062L,
- 536870912L, 759250125L, 1073741824L, 1518500250L,
- 2147483647L
- };
-
-#else
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Sqrt32 */
- /* */
- /* <Description> */
- /* Computes the square root of an Int32 integer (which will be */
- /* handled as an unsigned long value). */
- /* */
- /* <Input> */
- /* x :: The value to compute the root for. */
- /* */
- /* <Return> */
- /* The result of `sqrt(x)'. */
- /* */
- FT_EXPORT_FUNC( FT_Int32 ) FT_Sqrt32( FT_Int32 x )
- {
- FT_ULong val, root, newroot, mask;
-
-
- root = 0;
- mask = 0x40000000L;
- val = (FT_ULong)x;
-
- do
- {
- newroot = root + mask;
- if ( newroot <= val )
- {
- val -= newroot;
- root = newroot + mask;
- }
-
- root >>= 1;
- mask >>= 2;
-
- } while ( mask != 0 );
-
- return root;
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-
-#ifdef FT_LONG64
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulDiv */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation `(a*b)/c' */
- /* with maximal accuracy (it uses a 64-bit intermediate integer */
- /* whenever necessary). */
- /* */
- /* This function isn't necessarily as fast as some processor specific */
- /* operations, but is at least completely portable. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. */
- /* c :: The divisor. */
- /* */
- /* <Return> */
- /* The result of `(a*b)/c'. This function never traps when trying to */
- /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */
- /* on the signs of `a' and `b'. */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_MulDiv( FT_Long a,
- FT_Long b,
- FT_Long c )
- {
- FT_Int s;
-
-
- s = 1;
- if ( a < 0 ) { a = -a; s = -s; }
- if ( b < 0 ) { b = -b; s = -s; }
- if ( c < 0 ) { c = -c; s = -s; }
-
- return s * ( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c
- : 0x7FFFFFFFL );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*b)/0x10000' with maximal accuracy. Most of the time this is */
- /* used to multiply a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*b)/0x10000'. */
- /* */
- /* <Note> */
- /* This function has been optimized for the case where the absolute */
- /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */
- /* As this happens mainly when scaling from notional units to */
- /* fractional pixels in FreeType, it resulted in noticeable speed */
- /* improvements between versions 2.x and 1.x. */
- /* */
- /* As a conclusion, always try to place a 16.16 factor as the */
- /* _second_ argument of this function; this can make a great */
- /* difference. */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_MulFix( FT_Long a,
- FT_Long b )
- {
- FT_Int s;
-
-
- s = 1;
- if ( a < 0 ) { a = -a; s = -s; }
- if ( b < 0 ) { b = -b; s = -s; }
-
- return s * (FT_Long)( ( (FT_Int64)a * b + 0x8000 ) >> 16 );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_DivFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*0x10000)/b' with maximal accuracy. Most of the time, this is */
- /* used to divide a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*0x10000)/b'. */
- /* */
- /* <Note> */
- /* The optimization for FT_DivFix() is simple: If (a << 16) fits in */
- /* 32 bits, then the division is computed directly. Otherwise, we */
- /* use a specialized version of the old FT_MulDiv64(). */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_DivFix( FT_Long a,
- FT_Long b )
- {
- FT_Int32 s;
- FT_UInt32 q;
-
-
- s = a; a = ABS(a);
- s ^= b; b = ABS(b);
-
- if ( b == 0 )
- /* check for division by 0 */
- q = 0x7FFFFFFFL;
- else
- /* compute result directly */
- q = ( (FT_Int64)a << 16 ) / b;
-
- return (FT_Int32)( s < 0 ? -q : q );
- }
-
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
- /* a helper function for FT_Sqrt64() */
-
- static
- int ft_order64( FT_Int64 z )
- {
- int j = 0;
-
-
- while ( z )
- {
- z = (unsigned FT_INT64)z >> 1;
- j++;
- }
- return j - 1;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Sqrt64 */
- /* */
- /* <Description> */
- /* Computes the square root of a 64-bit value. That sounds stupid, */
- /* but it is needed to obtain maximal accuracy in the TrueType */
- /* bytecode interpreter. */
- /* */
- /* <Input> */
- /* l :: A 64-bit integer. */
- /* */
- /* <Return> */
- /* The 32-bit square-root. */
- /* */
- FT_EXPORT_FUNC( FT_Int32 ) FT_Sqrt64( FT_Int64 l )
- {
- FT_Int64 r, s;
-
-
- if ( l <= 0 ) return 0;
- if ( l == 1 ) return 1;
-
- r = ft_square_roots[ft_order64( l )];
-
- do
- {
- s = r;
- r = ( r + l / r ) >> 1;
-
- } while ( r > s || r * r > l );
-
- return r;
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-
-#else /* FT_LONG64 */
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulDiv */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation `(a*b)/c' */
- /* with maximal accuracy (it uses a 64-bit intermediate integer */
- /* whenever necessary). */
- /* */
- /* This function isn't necessarily as fast as some processor specific */
- /* operations, but is at least completely portable. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. */
- /* c :: The divisor. */
- /* */
- /* <Return> */
- /* The result of `(a*b)/c'. This function never traps when trying to */
- /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */
- /* on the signs of `a' and `b'. */
- /* */
- /* <Note> */
- /* The FT_MulDiv() function has been optimized thanks to ideas from */
- /* Graham Asher. The trick is to optimize computation if everything */
- /* fits within 32 bits (a rather common case). */
- /* */
- /* We compute `a*b+c/2', then divide it by `c' (positive values). */
- /* */
- /* 46340 is FLOOR(SQRT(2^31-1)). */
- /* */
- /* if ( a <= 46340 && b <= 46340 ) then ( a*b <= 0x7FFEA810 ) */
- /* */
- /* 0x7FFFFFFF - 0x7FFEA810 = 0x157F0 */
- /* */
- /* if ( c < 0x157F0*2 ) then ( a*b+c/2 <= 0x7FFFFFFF ) */
- /* */
- /* and 2*0x157F0 = 176096. */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_MulDiv( FT_Long a,
- FT_Long b,
- FT_Long c )
- {
- long s;
-
-
- if ( a == 0 || b == c )
- return a;
-
- s = a; a = ABS( a );
- s ^= b; b = ABS( b );
- s ^= c; c = ABS( c );
-
- if ( a <= 46340 && b <= 46340 && c <= 176095L && c > 0 )
- {
- a = ( a * b + ( c >> 1 ) ) / c;
- }
- else if ( c > 0 )
- {
- FT_Int64 temp, temp2;
-
-
- FT_MulTo64( a, b, &temp );
- temp2.hi = (FT_Int32)( c >> 31 );
- temp2.lo = (FT_UInt32)( c / 2 );
- FT_Add64( &temp, &temp2, &temp );
- a = FT_Div64by32( &temp, c );
- }
- else
- a = 0x7FFFFFFFL;
-
- return ( s < 0 ? -a : a );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*b)/0x10000' with maximal accuracy. Most of the time, this is */
- /* used to multiply a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*b)/0x10000'. */
- /* */
- /* <Note> */
- /* The optimization for FT_MulFix() is different. We could simply be */
- /* happy by applying the same principles as with FT_MulDiv(), because */
- /* */
- /* c = 0x10000 < 176096 */
- /* */
- /* However, in most cases, we have a `b' with a value around 0x10000 */
- /* which is greater than 46340. */
- /* */
- /* According to some testing, most cases have `a' < 2048, so a good */
- /* idea is to use bounds like 2048 and 1048576 (=floor((2^31-1)/2048) */
- /* for `a' and `b', respectively. */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_MulFix( FT_Long a,
- FT_Long b )
- {
- FT_Long s;
- FT_ULong ua, ub;
-
-
- if ( a == 0 || b == 0x10000L )
- return a;
-
- s = a; a = ABS(a);
- s ^= b; b = ABS(b);
-
- ua = (FT_ULong)a;
- ub = (FT_ULong)b;
-
- if ( ua <= 2048 && ub <= 1048576L )
- {
- ua = ( ua * ub + 0x8000 ) >> 16;
- }
- else
- {
- FT_ULong al = ua & 0xFFFF;
-
-
- ua = ( ua >> 16 ) * ub +
- al * ( ub >> 16 ) +
- ( al * ( ub & 0xFFFF ) >> 16 );
- }
-
- return ( s < 0 ? -(FT_Long)ua : ua );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_DivFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*0x10000)/b' with maximal accuracy. Most of the time, this is */
- /* used to divide a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*0x10000)/b'. */
- /* */
- /* <Note> */
- /* The optimization for FT_DivFix() is simple: If (a << 16) fits into */
- /* 32 bits, then the division is computed directly. Otherwise, we */
- /* use a specialized version of the old FT_MulDiv64(). */
- /* */
- FT_EXPORT_FUNC( FT_Long ) FT_DivFix( FT_Long a,
- FT_Long b )
- {
- FT_Int32 s;
- FT_UInt32 q;
-
-
- s = a; a = ABS(a);
- s ^= b; b = ABS(b);
-
- if ( b == 0 )
- {
- /* check for division by 0 */
- q = 0x7FFFFFFFL;
- }
- else if ( ( a >> 16 ) == 0 )
- {
- /* compute result directly */
- q = (FT_UInt32)( a << 16 ) / (FT_UInt32)b;
- }
- else
- {
- /* we need more bits; we have to do it by hand */
- FT_UInt32 c;
-
-
- q = ( a / b ) << 16;
- c = a % b;
-
- /* we must compute C*0x10000/B: we simply shift C and B so */
- /* C becomes smaller than 16 bits */
- while ( c >> 16 )
- {
- c >>= 1;
- b <<= 1;
- }
-
- q += ( c << 16 ) / b;
- }
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add64 */
- /* */
- /* <Description> */
- /* Add two Int64 values. */
- /* */
- /* <Input> */
- /* x :: A pointer to the first value to be added. */
- /* y :: A pointer to the second value to be added. */
- /* */
- /* <Output> */
- /* z :: A pointer to the result of `x + y'. */
- /* */
- /* <Note> */
- /* Will be wrapped by the ADD_64() macro. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Add64( FT_Int64* x,
- FT_Int64* y,
- FT_Int64* z )
- {
- register FT_UInt32 lo, hi;
-
-
- lo = x->lo + y->lo;
- hi = x->hi + y->hi + ( lo < x->lo );
-
- z->lo = lo;
- z->hi = hi;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulTo64 */
- /* */
- /* <Description> */
- /* Multiplies two Int32 integers. Returns an Int64 integer. */
- /* */
- /* <Input> */
- /* x :: The first multiplier. */
- /* y :: The second multiplier. */
- /* */
- /* <Output> */
- /* z :: A pointer to the result of `x * y'. */
- /* */
- /* <Note> */
- /* Will be wrapped by the MUL_64() macro. */
- /* */
- FT_EXPORT_FUNC( void ) FT_MulTo64( FT_Int32 x,
- FT_Int32 y,
- FT_Int64* z )
- {
- FT_Int32 s;
-
-
- s = x; x = ABS( x );
- s ^= y; y = ABS( y );
-
- {
- FT_UInt32 lo1, hi1, lo2, hi2, lo, hi, i1, i2;
-
-
- lo1 = x & 0x0000FFFF; hi1 = x >> 16;
- lo2 = y & 0x0000FFFF; hi2 = y >> 16;
-
- lo = lo1 * lo2;
- i1 = lo1 * hi2;
- i2 = lo2 * hi1;
- hi = hi1 * hi2;
-
- /* Check carry overflow of i1 + i2 */
- i1 += i2;
- if ( i1 < i2 )
- hi += 1L << 16;
-
- hi += i1 >> 16;
- i1 = i1 << 16;
-
- /* Check carry overflow of i1 + lo */
- lo += i1;
- hi += ( lo < i1 );
-
- z->lo = lo;
- z->hi = hi;
- }
-
- if ( s < 0 )
- {
- z->lo = (FT_UInt32)-(FT_Int32)z->lo;
- z->hi = ~z->hi + !( z->lo );
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Div64by32 */
- /* */
- /* <Description> */
- /* Divides an Int64 value by an Int32 value. Returns an Int32 */
- /* integer. */
- /* */
- /* <Input> */
- /* x :: A pointer to the dividend. */
- /* y :: The divisor. */
- /* */
- /* <Return> */
- /* The result of `x / y'. */
- /* */
- /* <Note> */
- /* Will be wrapped by the DIV_64() macro. */
- /* */
- FT_EXPORT_FUNC( FT_Int32 ) FT_Div64by32( FT_Int64* x,
- FT_Int32 y )
- {
- FT_Int32 s;
- FT_UInt32 q, r, i, lo;
-
-
- s = x->hi;
- if ( s < 0 )
- {
- x->lo = (FT_UInt32)-(FT_Int32)x->lo;
- x->hi = ~x->hi + !( x->lo );
- }
- s ^= y; y = ABS( y );
-
- /* Shortcut */
- if ( x->hi == 0 )
- {
- if ( y > 0 )
- q = x->lo / y;
- else
- q = 0x7FFFFFFFL;
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
- r = x->hi;
- lo = x->lo;
-
- if ( r >= (FT_UInt32)y ) /* we know y is to be treated as unsigned here */
- return ( s < 0 ? 0x80000001UL : 0x7FFFFFFFUL );
- /* Return Max/Min Int32 if division overflow. */
- /* This includes division by zero! */
- q = 0;
- for ( i = 0; i < 32; i++ )
- {
- r <<= 1;
- q <<= 1;
- r |= lo >> 31;
-
- if ( r >= (FT_UInt32)y )
- {
- r -= y;
- q |= 1;
- }
- lo <<= 1;
- }
-
- return ( s < 0 ? -(FT_Int32)q : (FT_Int32)q );
- }
-
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
-
- /* two helper functions for FT_Sqrt64() */
-
- static
- void FT_Sub64( FT_Int64* x,
- FT_Int64* y,
- FT_Int64* z )
- {
- register FT_UInt32 lo, hi;
-
-
- lo = x->lo - y->lo;
- hi = x->hi - y->hi - ( (FT_Int32)lo < 0 );
-
- z->lo = lo;
- z->hi = hi;
- }
-
-
- static
- int ft_order64( FT_Int64* z )
- {
- FT_UInt32 i;
- int j;
-
-
- i = z->lo;
- j = 0;
- if ( z->hi )
- {
- i = z->hi;
- j = 32;
- }
-
- while ( i > 0 )
- {
- i >>= 1;
- j++;
- }
- return j - 1;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Sqrt64 */
- /* */
- /* <Description> */
- /* Computes the square root of a 64-bits value. That sounds stupid, */
- /* but it is needed to obtain maximal accuracy in the TrueType */
- /* bytecode interpreter. */
- /* */
- /* <Input> */
- /* z :: A pointer to a 64-bit integer. */
- /* */
- /* <Return> */
- /* The 32-bit square-root. */
- /* */
- FT_EXPORT_FUNC( FT_Int32 ) FT_Sqrt64( FT_Int64* l )
- {
- FT_Int64 l2;
- FT_Int32 r, s;
-
-
- if ( (FT_Int32)l->hi < 0 ||
- ( l->hi == 0 && l->lo == 0 ) )
- return 0;
-
- s = ft_order64( l );
- if ( s == 0 )
- return 1;
-
- r = ft_square_roots[s];
- do
- {
- s = r;
- r = ( r + FT_Div64by32( l, r ) ) >> 1;
- FT_MulTo64( r, r, &l2 );
- FT_Sub64 ( l, &l2, &l2 );
-
- } while ( r > s || (FT_Int32)l2.hi < 0 );
-
- return r;
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-#endif /* FT_LONG64 */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftdebug.c */
-/* */
-/* Debugging and logging component (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This component contains various macros and functions used to ease the */
- /* debugging of the FreeType engine. Its main purpose is in assertion */
- /* checking, tracing, and error detection. */
- /* */
- /* There are now three debugging modes: */
- /* */
- /* - trace mode */
- /* */
- /* Error and trace messages are sent to the log file (which can be the */
- /* standard error output). */
- /* */
- /* - error mode */
- /* */
- /* Only error messages are generated. */
- /* */
- /* - release mode: */
- /* */
- /* No error message is sent or generated. The code is free from any */
- /* debugging parts. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-
-#ifdef FT_DEBUG_LEVEL_TRACE
- char ft_trace_levels[trace_max];
-#endif
-
-
-#if defined( FT_DEBUG_LEVEL_ERROR ) || defined( FT_DEBUG_LEVEL_TRACE )
-
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-
-
- FT_EXPORT_FUNC( void ) FT_Message( const char* fmt, ... )
- {
- va_list ap;
-
-
- va_start( ap, fmt );
- vprintf( fmt, ap );
- va_end( ap );
- }
-
-
- FT_EXPORT_FUNC( void ) FT_Panic( const char* fmt, ... )
- {
- va_list ap;
-
-
- va_start( ap, fmt );
- vprintf( fmt, ap );
- va_end( ap );
-
- exit( EXIT_FAILURE );
- }
-
-
-#ifdef FT_DEBUG_LEVEL_TRACE
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_SetTraceLevel */
- /* */
- /* <Description> */
- /* Sets the trace level for debugging. */
- /* */
- /* <Input> */
- /* component :: The component which should be traced. See ftdebug.h */
- /* for a complete list. If set to `trace_any', all */
- /* components will be traced. */
- /* level :: The tracing level. */
- /* */
- FT_EXPORT_FUNC( void ) FT_SetTraceLevel( FT_Trace component,
- char level )
- {
- if ( component >= trace_max )
- return;
-
- /* if component is `trace_any', change _all_ levels at once */
- if ( component == trace_any )
- {
- int n;
-
-
- for ( n = trace_any; n < trace_max; n++ )
- ft_trace_levels[n] = level;
- }
- else /* otherwise, only change individual component */
- ft_trace_levels[component] = level;
- }
-
-#endif /* FT_DEBUG_LEVEL_TRACE */
-
-#endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftextend.h */
-/* */
-/* FreeType extensions implementation (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* This is an updated version of the extension component, now located */
- /* in the main library's source directory. It allows the dynamic */
- /* registration/use of various face object extensions through a simple */
- /* API. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/internal/ftextend.h>
-#include <freetype/internal/ftdebug.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_extend
-
-
- typedef struct FT_Extension_Registry_
- {
- FT_Int num_extensions;
- FT_Long cur_offset;
- FT_Extension_Class classes[FT_MAX_EXTENSIONS];
-
- } FT_Extension_Registry;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Init_Extensions */
- /* */
- /* <Description> */
- /* Initializes the extension component. */
- /* */
- /* <InOut> */
- /* driver :: A handle to the driver object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error FT_Init_Extensions( FT_Driver driver )
- {
- FT_Error error;
- FT_Memory memory;
- FT_Extension_Registry* registry;
-
-
- memory = driver->root.library->memory;
- if ( ALLOC( registry, sizeof ( *registry ) ) )
- return error;
-
- registry->num_extensions = 0;
- registry->cur_offset = 0;
- driver->extensions = registry;
-
- FT_TRACE2(( "FT_Init_Extensions: success\n" ));
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Extensions */
- /* */
- /* <Description> */
- /* Finalizes the extension component. */
- /* */
- /* <InOut> */
- /* driver :: A handle to the driver object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error FT_Done_Extensions( FT_Driver driver )
- {
- FT_Memory memory = driver->root.memory;
-
-
- FREE( driver->extensions );
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Register_Extension */
- /* */
- /* <Description> */
- /* Registers a new extension. */
- /* */
- /* <InOut> */
- /* driver :: A handle to the driver object. */
- /* class :: A pointer to a class describing the extension. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Register_Extension(
- FT_Driver driver,
- FT_Extension_Class* clazz )
- {
- FT_Extension_Registry* registry;
-
-
- if ( !driver )
- return FT_Err_Invalid_Driver_Handle;
-
- if ( !clazz )
- return FT_Err_Invalid_Argument;
-
- registry = (FT_Extension_Registry*)driver->extensions;
- if ( registry )
- {
- FT_Int n = registry->num_extensions;
- FT_Extension_Class* cur = registry->classes + n;
-
-
- if ( n >= FT_MAX_EXTENSIONS )
- return FT_Err_Too_Many_Extensions;
-
- *cur = *clazz;
-
- cur->offset = registry->cur_offset;
-
- registry->num_extensions++;
- registry->cur_offset +=
- ( cur->size + FT_ALIGNMENT - 1 ) & -FT_ALIGNMENT;
-
- FT_TRACE1(( "FT_Register_Extension: `%s' successfully registered\n",
- cur->id ));
- }
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Extension */
- /* */
- /* <Description> */
- /* Queries an extension block by an extension ID string. */
- /* */
- /* <Input> */
- /* face :: A handle to the face object. */
- /* extension_id :: An ID string identifying the extension. */
- /* */
- /* <Output> */
- /* extension_interface :: A generic pointer, usually pointing to a */
- /* table of functions implementing the */
- /* extension interface. */
- /* */
- /* <Return> */
- /* A generic pointer to the extension block. */
- /* */
- FT_EXPORT_FUNC( void* ) FT_Get_Extension(
- FT_Face face,
- const char* extension_id,
- void** extension_interface )
- {
- FT_Extension_Registry* registry;
-
-
- if ( !face || !extension_id || !extension_interface )
- return 0;
-
- registry = (FT_Extension_Registry*)face->driver->extensions;
- if ( registry && face->extensions )
- {
- FT_Extension_Class* cur = registry->classes;
- FT_Extension_Class* limit = cur + registry->num_extensions;
-
-
- for ( ; cur < limit; cur++ )
- if ( strcmp( cur->id, extension_id ) == 0 )
- {
- *extension_interface = cur->interface;
-
- FT_TRACE1(( "FT_Get_Extension: got `%s'\n", extension_id ));
-
- return (void*)((char*)face->extensions + cur->offset);
- }
- }
-
- /* could not find the extension id */
-
- FT_ERROR(( "FT_Get_Extension: couldn't find `%s'\n", extension_id ));
-
- *extension_interface = 0;
-
- return 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Destroy_Extensions */
- /* */
- /* <Description> */
- /* Destroys all extensions within a face object. */
- /* */
- /* <InOut> */
- /* face :: A handle to the face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Called by the face object destructor. */
- /* */
- LOCAL_FUNC
- FT_Error FT_Destroy_Extensions( FT_Face face )
- {
- FT_Extension_Registry* registry;
- FT_Memory memory;
-
-
- registry = (FT_Extension_Registry*)face->driver->extensions;
- if ( registry && face->extensions )
- {
- FT_Extension_Class* cur = registry->classes;
- FT_Extension_Class* limit = cur + registry->num_extensions;
-
-
- for ( ; cur < limit; cur++ )
- {
- char* ext = (char*)face->extensions + cur->offset;
-
- if ( cur->finalize )
- cur->finalize( ext, face );
- }
-
- memory = face->driver->root.memory;
- FREE( face->extensions );
- }
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Create_Extensions */
- /* */
- /* <Description> */
- /* Creates an extension object within a face object for all */
- /* registered extensions. */
- /* */
- /* <InOut> */
- /* face :: A handle to the face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Called by the face object constructor. */
- /* */
- LOCAL_FUNC
- FT_Error FT_Create_Extensions( FT_Face face )
- {
- FT_Extension_Registry* registry;
- FT_Memory memory;
- FT_Error error;
-
-
- face->extensions = 0;
-
- /* load extensions registry; exit successfully if none is there */
-
- registry = (FT_Extension_Registry*)face->driver->extensions;
- if ( !registry )
- return FT_Err_Ok;
-
- memory = face->driver->root.memory;
- if ( ALLOC( face->extensions, registry->cur_offset ) )
- return error;
-
- {
- FT_Extension_Class* cur = registry->classes;
- FT_Extension_Class* limit = cur + registry->num_extensions;
-
-
- for ( ; cur < limit; cur++ )
- {
- char* ext = (char*)face->extensions + cur->offset;
-
- if ( cur->init )
- {
- error = cur->init( ext, face );
- if ( error )
- break;
- }
- }
- }
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftglyph.c */
-/* */
-/* FreeType convenience functions to handle glyphs (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* This file contains the definition of several convenience functions */
- /* that can be used by client applications to easily retrieve glyph */
- /* bitmaps and outlines from a given face. */
- /* */
- /* These functions should be optional if you are writing a font server */
- /* or text layout engine on top of FreeType. However, they are pretty */
- /* handy for many other simple uses of the library. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/ftglyph.h>
-#include <freetype/ftoutln.h>
-#include <freetype/internal/ftobjs.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_glyph
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** Convenience functions ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Matrix_Multiply */
- /* */
- /* <Description> */
- /* Performs the matrix operation `b = a*b'. */
- /* */
- /* <Input> */
- /* a :: A pointer to matrix `a'. */
- /* */
- /* <InOut> */
- /* b :: A pointer to matrix `b'. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* The result is undefined if either `a' or `b' is zero. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Matrix_Multiply( FT_Matrix* a,
- FT_Matrix* b )
- {
- FT_Fixed xx, xy, yx, yy;
-
-
- if ( !a || !b )
- return;
-
- xx = FT_MulFix( a->xx, b->xx ) + FT_MulFix( a->xy, b->yx );
- xy = FT_MulFix( a->xx, b->xy ) + FT_MulFix( a->xy, b->yy );
- yx = FT_MulFix( a->yx, b->xx ) + FT_MulFix( a->yy, b->yx );
- yy = FT_MulFix( a->yx, b->xy ) + FT_MulFix( a->yy, b->yy );
-
- b->xx = xx; b->xy = xy;
- b->yx = yx; b->yy = yy;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Matrix_Invert */
- /* */
- /* <Description> */
- /* Inverts a 2x2 matrix. Returns an error if it can't be inverted. */
- /* */
- /* <InOut> */
- /* matrix :: A pointer to the target matrix. Remains untouched in */
- /* case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Matrix_Invert( FT_Matrix* matrix )
- {
- FT_Pos delta, xx, yy;
-
-
- if ( !matrix )
- return FT_Err_Invalid_Argument;
-
- /* compute discriminant */
- delta = FT_MulFix( matrix->xx, matrix->yy ) -
- FT_MulFix( matrix->xy, matrix->yx );
-
- if ( !delta )
- return FT_Err_Invalid_Argument; /* matrix can't be inverted */
-
- matrix->xy = - FT_DivFix( matrix->xy, delta );
- matrix->yx = - FT_DivFix( matrix->yx, delta );
-
- xx = matrix->xx;
- yy = matrix->yy;
-
- matrix->xx = FT_DivFix( yy, delta );
- matrix->yy = FT_DivFix( xx, delta );
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** FT_BitmapGlyph support ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
- static
- FT_Error ft_bitmap_copy( FT_Memory memory,
- FT_Bitmap* source,
- FT_Bitmap* target )
- {
- FT_Error error;
- FT_Int pitch = source->pitch;
- FT_ULong size;
-
-
- *target = *source;
-
- if ( pitch < 0 )
- pitch = -pitch;
-
- size = (FT_ULong)( pitch * source->rows );
-
- if ( !ALLOC( target->buffer, size ) )
- MEM_Copy( source->buffer, target->buffer, size );
-
- return error;
- }
-
-
- static
- FT_Error ft_bitmap_glyph_init( FT_BitmapGlyph glyph,
- FT_GlyphSlot slot )
- {
- FT_Error error = FT_Err_Ok;
- FT_Library library = FT_GLYPH(glyph)->library;
- FT_Memory memory = library->memory;
-
-
- if ( slot->format != ft_glyph_format_bitmap )
- {
- error = FT_Err_Invalid_Glyph_Format;
- goto Exit;
- }
-
- /* grab the bitmap in the slot - do lazy copying whenever possible */
- glyph->bitmap = slot->bitmap;
- glyph->left = slot->bitmap_left;
- glyph->top = slot->bitmap_top;
-
- if ( slot->flags & ft_glyph_own_bitmap )
- slot->flags &= ~ft_glyph_own_bitmap;
- else
- {
- /* copy the bitmap into a new buffer */
- error = ft_bitmap_copy( memory, &slot->bitmap, &glyph->bitmap );
- }
-
- Exit:
- return error;
- }
-
-
- static
- FT_Error ft_bitmap_glyph_copy( FT_BitmapGlyph source,
- FT_BitmapGlyph target )
- {
- FT_Memory memory = source->root.library->memory;
-
-
- target->left = source->left;
- target->top = source->top;
-
- return ft_bitmap_copy( memory, &source->bitmap, &target->bitmap );
- }
-
-
- static
- void ft_bitmap_glyph_done( FT_BitmapGlyph glyph )
- {
- FT_Memory memory = FT_GLYPH(glyph)->library->memory;
-
-
- FREE( glyph->bitmap.buffer );
- }
-
-
- static
- void ft_bitmap_glyph_bbox( FT_BitmapGlyph glyph,
- FT_BBox* cbox )
- {
- cbox->xMin = glyph->left << 6;
- cbox->xMax = cbox->xMin + ( glyph->bitmap.width << 6 );
- cbox->yMax = glyph->top << 6;
- cbox->yMin = cbox->xMax - ( glyph->bitmap.rows << 6 );
- }
-
-
- const FT_Glyph_Class ft_bitmap_glyph_class =
- {
- sizeof( FT_BitmapGlyphRec ),
- ft_glyph_format_bitmap,
-
- (FT_Glyph_Init_Func) ft_bitmap_glyph_init,
- (FT_Glyph_Done_Func) ft_bitmap_glyph_done,
- (FT_Glyph_Copy_Func) ft_bitmap_glyph_copy,
- (FT_Glyph_Transform_Func)0,
- (FT_Glyph_BBox_Func) ft_bitmap_glyph_bbox,
- (FT_Glyph_Prepare_Func) 0
- };
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** FT_OutlineGlyph support ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Error ft_outline_glyph_init( FT_OutlineGlyph glyph,
- FT_GlyphSlot slot )
- {
- FT_Error error = FT_Err_Ok;
- FT_Library library = FT_GLYPH(glyph)->library;
- FT_Outline* source = &slot->outline;
- FT_Outline* target = &glyph->outline;
-
-
- /* check format in glyph slot */
- if ( slot->format != ft_glyph_format_outline )
- {
- error = FT_Err_Invalid_Glyph_Format;
- goto Exit;
- }
-
- /* allocate new outline */
- error = FT_Outline_New( library, source->n_points, source->n_contours,
- &glyph->outline );
- if ( error )
- goto Exit;
-
- /* copy it */
- MEM_Copy( target->points, source->points,
- source->n_points * sizeof ( FT_Vector ) );
-
- MEM_Copy( target->tags, source->tags,
- source->n_points * sizeof ( FT_Byte ) );
-
- MEM_Copy( target->contours, source->contours,
- source->n_contours * sizeof ( FT_Short ) );
-
- /* copy all flags, except the `ft_outline_owner' one */
- target->flags = source->flags | ft_outline_owner;
-
- Exit:
- return error;
- }
-
-
- static
- void ft_outline_glyph_done( FT_OutlineGlyph glyph )
- {
- FT_Outline_Done( FT_GLYPH( glyph )->library, &glyph->outline );
- }
-
-
- static
- FT_Error ft_outline_glyph_copy( FT_OutlineGlyph source,
- FT_OutlineGlyph target )
- {
- FT_Error error;
- FT_Library library = FT_GLYPH( source )->library;
-
-
- error = FT_Outline_New( library, source->outline.n_points,
- source->outline.n_contours, &target->outline );
- if ( !error )
- FT_Outline_Copy( &source->outline, &target->outline );
-
- return error;
- }
-
-
- static
- void ft_outline_glyph_transform( FT_OutlineGlyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta )
- {
- if ( matrix )
- FT_Outline_Transform( &glyph->outline, matrix );
-
- if ( delta )
- FT_Outline_Translate( &glyph->outline, delta->x, delta->y );
- }
-
-
- static
- void ft_outline_glyph_bbox( FT_OutlineGlyph glyph,
- FT_BBox* bbox )
- {
- FT_Outline_Get_CBox( &glyph->outline, bbox );
- }
-
-
- static
- FT_Error ft_outline_glyph_prepare( FT_OutlineGlyph glyph,
- FT_GlyphSlot slot )
- {
- slot->format = ft_glyph_format_outline;
- slot->outline = glyph->outline;
- slot->outline.flags &= ~ft_outline_owner;
-
- return FT_Err_Ok;
- }
-
-
- const FT_Glyph_Class ft_outline_glyph_class =
- {
- sizeof( FT_OutlineGlyphRec ),
- ft_glyph_format_outline,
-
- (FT_Glyph_Init_Func) ft_outline_glyph_init,
- (FT_Glyph_Done_Func) ft_outline_glyph_done,
- (FT_Glyph_Copy_Func) ft_outline_glyph_copy,
- (FT_Glyph_Transform_Func)ft_outline_glyph_transform,
- (FT_Glyph_BBox_Func) ft_outline_glyph_bbox,
- (FT_Glyph_Prepare_Func) ft_outline_glyph_prepare
- };
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** FT_Glyph class and API ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
- static
- FT_Error ft_new_glyph( FT_Library library,
- const FT_Glyph_Class* clazz,
- FT_Glyph* aglyph )
- {
- FT_Memory memory = library->memory;
- FT_Error error;
- FT_Glyph glyph;
-
-
- *aglyph = 0;
-
- if ( !ALLOC( glyph, clazz->glyph_size ) )
- {
- glyph->library = library;
- glyph->clazz = clazz;
- glyph->format = clazz->glyph_format;
-
- *aglyph = glyph;
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Copy */
- /* */
- /* <Description> */
- /* A function used to copy a glyph image. */
- /* */
- /* <Input> */
- /* source :: A handle to the source glyph object. */
- /* */
- /* <Output> */
- /* target :: A handle to the target glyph object. 0 in case of */
- /* error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Glyph_Copy( FT_Glyph source,
- FT_Glyph* target )
- {
- FT_Glyph copy;
- FT_Error error;
- const FT_Glyph_Class* clazz;
-
-
- /* check arguments */
- if ( !target || !source || !source->clazz )
- {
- error = FT_Err_Invalid_Argument;
- goto Exit;
- }
-
- *target = 0;
-
- clazz = source->clazz;
- error = ft_new_glyph( source->library, clazz, © );
- if ( error )
- goto Exit;
-
- if ( clazz->glyph_copy )
- error = clazz->glyph_copy( source, copy );
-
- if ( error )
- FT_Done_Glyph( copy );
- else
- *target = copy;
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Glyph */
- /* */
- /* <Description> */
- /* A function used to extract a glyph image from a slot. */
- /* */
- /* <Input> */
- /* slot :: A handle to the source glyph slot. */
- /* */
- /* <Output> */
- /* aglyph :: A handle to the glyph object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Get_Glyph( FT_GlyphSlot slot,
- FT_Glyph* aglyph )
- {
- FT_Library library = slot->library;
- FT_Error error;
- FT_Glyph glyph;
-
- const FT_Glyph_Class* clazz = 0;
-
-
- if ( !slot )
- return FT_Err_Invalid_Slot_Handle;
-
- if ( !aglyph )
- return FT_Err_Invalid_Argument;
-
- /* if it is a bitmap, that's easy :-) */
- if ( slot->format == ft_glyph_format_bitmap )
- clazz = &ft_bitmap_glyph_class;
-
- /* it it is an outline too */
- else if ( slot->format == ft_glyph_format_outline )
- clazz = &ft_outline_glyph_class;
-
- else
- {
- /* try to find a renderer that supports the glyph image format */
- FT_Renderer render = FT_Lookup_Renderer( library, slot->format, 0 );
-
-
- if ( render )
- clazz = &render->glyph_class;
- }
-
- if ( !clazz )
- {
- error = FT_Err_Invalid_Glyph_Format;
- goto Exit;
- }
-
- /* create FT_Glyph object */
- error = ft_new_glyph( library, clazz, &glyph );
- if ( error )
- goto Exit;
-
- /* copy advance while converting it to 16.16 format */
- glyph->advance.x = slot->advance.x << 10;
- glyph->advance.y = slot->advance.y << 10;
-
- /* now import the image from the glyph slot */
- error = clazz->glyph_init( glyph, slot );
-
- /* if an error occurred, destroy the glyph */
- if ( error )
- FT_Done_Glyph( glyph );
- else
- *aglyph = glyph;
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Transform */
- /* */
- /* <Description> */
- /* Transforms a glyph image if its format is scalable. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the target glyph object. */
- /* */
- /* matrix :: A pointer to a 2x2 matrix to apply. */
- /* */
- /* delta :: A pointer to a 2d vector to apply. Coordinates are */
- /* expressed in 1/64th of a pixel. */
- /* */
- /* <Return> */
- /* FreeType error code (the glyph format is not scalable if it is */
- /* not zero). */
- /* */
- /* <Note> */
- /* The 2x2 transformation matrix is also applied to the glyph's */
- /* advance vector. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Glyph_Transform( FT_Glyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta )
- {
- const FT_Glyph_Class* clazz;
- FT_Error error = FT_Err_Ok;
-
-
- if ( !glyph || !glyph->clazz )
- error = FT_Err_Invalid_Argument;
- else
- {
- clazz = glyph->clazz;
- if ( clazz->glyph_transform )
- {
- /* transform glyph image */
- clazz->glyph_transform( glyph, matrix, delta );
-
- /* transform advance vector */
- if ( matrix )
- FT_Vector_Transform( &glyph->advance, matrix );
- }
- else
- error = FT_Err_Invalid_Glyph_Format;
- }
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Get_CBox */
- /* */
- /* <Description> */
- /* Returns the glyph image's bounding box. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the source glyph object. */
- /* */
- /* mode :: A set of bit flags that indicate how to interpret the */
- /* returned bounding box values. */
- /* */
- /* <Output> */
- /* box :: The glyph bounding box. Coordinates are expressed in */
- /* 1/64th of pixels if it is grid-fitted. */
- /* */
- /* <Note> */
- /* Coordinates are relative to the glyph origin, using the Y-upwards */
- /* convention. */
- /* */
- /* If `ft_glyph_bbox_subpixels' is set in `mode', the bbox */
- /* coordinates are returned in 26.6 pixels (i.e. 1/64th of pixels). */
- /* Otherwise, coordinates are expressed in integer pixels. */
- /* */
- /* Note that the maximum coordinates are exclusive, which means that */
- /* one can compute the width and height of the glyph image (be it in */
- /* integer or 26.6 pixels) as: */
- /* */
- /* width = bbox.xMax - bbox.xMin; */
- /* height = bbox.yMax - bbox.yMin; */
- /* */
- /* Note also that for 26.6 coordinates, if the */
- /* `ft_glyph_bbox_gridfit' flag is set in `mode;, the coordinates */
- /* will also be grid-fitted, which corresponds to: */
- /* */
- /* bbox.xMin = FLOOR(bbox.xMin); */
- /* bbox.yMin = FLOOR(bbox.yMin); */
- /* bbox.xMax = CEILING(bbox.xMax); */
- /* bbox.yMax = CEILING(bbox.yMax); */
- /* */
- /* The default value (0) for `bbox_mode' is `ft_glyph_bbox_pixels'. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Glyph_Get_CBox( FT_Glyph glyph,
- FT_UInt bbox_mode,
- FT_BBox* cbox )
- {
- const FT_Glyph_Class* clazz;
- FT_Error error = FT_Err_Ok;
-
-
- if ( !cbox || !glyph || !glyph->clazz )
- error = FT_Err_Invalid_Argument;
- else
- {
- clazz = glyph->clazz;
- if ( !clazz->glyph_bbox )
- error = FT_Err_Invalid_Glyph_Format;
- else
- {
- /* retrieve bbox in 26.6 coordinates */
- clazz->glyph_bbox( glyph, cbox );
-
- /* perform grid fitting if needed */
- if ( bbox_mode & ft_glyph_bbox_gridfit )
- {
- cbox->xMin &= -64;
- cbox->yMin &= -64;
- cbox->xMax = ( cbox->xMax + 63 ) & -64;
- cbox->yMax = ( cbox->yMax + 63 ) & -64;
- }
-
- /* convert to integer pixels if needed */
- if ( !( bbox_mode & ft_glyph_bbox_subpixels ) )
- {
- cbox->xMin >>= 6;
- cbox->yMin >>= 6;
- cbox->xMax >>= 6;
- cbox->yMax >>= 6;
- }
- }
- }
- return;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_To_Bitmap */
- /* */
- /* <Description> */
- /* Converts a given glyph object to a bitmap glyph object. */
- /* */
- /* <InOut> */
- /* glyph :: A pointer to a handle to the target glyph. */
- /* */
- /* <Input> */
- /* render_mode :: A set of bit flags that describe how the data is */
- /* */
- /* */
- /* origin :: A pointer to a vector used to translate the glyph */
- /* image before rendering. Can be 0 (if no */
- /* translation). The origin is expressed in */
- /* 26.6 pixels. */
- /* */
- /* destroy :: A boolean that indicates that the original glyph */
- /* image should be destroyed by this function. It is */
- /* never destroyed in case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The glyph image is translated with the `origin' vector before */
- /* rendering. In case of error, it it translated back to its */
- /* original position and the glyph is left untouched. */
- /* */
- /* The first parameter is a pointer to a FT_Glyph handle, that will */
- /* be replaced by this function. Typically, you would use (omitting */
- /* error handling): */
- /* */
- /* */
- /* { */
- /* FT_Glyph glyph; */
- /* FT_BitmapGlyph glyph_bitmap; */
- /* */
- /* */
- /* // load glyph */
- /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */
- /* */
- /* // extract glyph image */
- /* error = FT_Get_Glyph( face->glyph, &glyph ); */
- /* */
- /* // convert to a bitmap (default render mode + destroy old) */
- /* if ( glyph->format != ft_glyph_format_bitmap ) */
- /* { */
- /* error = FT_Glyph_To_Bitmap( &glyph, ft_render_mode_default, */
- /* 0, 1 ); */
- /* if ( error ) // glyph unchanged */
- /* ... */
- /* } */
- /* */
- /* // access bitmap content by typecasting */
- /* glyph_bitmap = (FT_BitmapGlyph)glyph; */
- /* */
- /* // do funny stuff with it, like blitting/drawing */
- /* ... */
- /* */
- /* // discard glyph image (bitmap or not) */
- /* FT_Done_Glyph( glyph ); */
- /* } */
- /* */
- /* */
- /* This function will always fail if the glyph's format isn't */
- /* scalable. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
- FT_ULong render_mode,
- FT_Vector* origin,
- FT_Bool destroy )
- {
- FT_GlyphSlotRec dummy;
- FT_Error error;
- FT_Glyph glyph;
- FT_BitmapGlyph bitmap;
-
- const FT_Glyph_Class* clazz;
-
-
- /* check argument */
- if ( !the_glyph )
- goto Bad;
-
- /* we render the glyph into a glyph bitmap using a `dummy' glyph slot */
- /* then calling FT_Render_Glyph_Internal() */
-
- glyph = *the_glyph;
- if ( !glyph )
- goto Bad;
-
- clazz = glyph->clazz;
- if ( !clazz || !clazz->glyph_prepare )
- goto Bad;
-
- MEM_Set( &dummy, 0, sizeof ( dummy ) );
- dummy.library = glyph->library;
- dummy.format = clazz->glyph_format;
-
- /* if `origin' is set, translate the glyph image */
- if ( origin )
- FT_Glyph_Transform( glyph, 0, origin );
-
- /* create result bitmap glyph */
- error = ft_new_glyph( glyph->library, &ft_bitmap_glyph_class,
- (FT_Glyph*)&bitmap );
- if ( error )
- goto Exit;
-
- /* prepare dummy slot for rendering */
- error = clazz->glyph_prepare( glyph, &dummy ) ||
- FT_Render_Glyph_Internal( glyph->library, &dummy, render_mode );
-
- if ( !destroy && origin )
- {
- FT_Vector v;
-
-
- v.x = -origin->x;
- v.y = -origin->y;
- FT_Glyph_Transform( glyph, 0, &v );
- }
-
- /* in case of succes, copy the bitmap to the glyph bitmap */
- if ( !error )
- {
- error = ft_bitmap_glyph_init( bitmap, &dummy );
- if ( error )
- {
- /* this should never happen, but let's be safe */
- FT_Done_Glyph( FT_GLYPH( bitmap ) );
- goto Exit;
- }
-
- if ( destroy )
- FT_Done_Glyph( glyph );
-
- *the_glyph = FT_GLYPH( bitmap );
- }
-
- Exit:
- return error;
-
- Bad:
- error = FT_Err_Invalid_Argument;
- goto Exit;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Glyph */
- /* */
- /* <Description> */
- /* Destroys a given glyph. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the target glyph object. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Done_Glyph( FT_Glyph glyph )
- {
- if ( glyph )
- {
- FT_Memory memory = glyph->library->memory;
- const FT_Glyph_Class* clazz = glyph->clazz;
-
-
- if ( clazz->glyph_done )
- clazz->glyph_done( glyph );
-
- FREE( glyph );
- }
- }
-
-
-#if 0
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** EXPERIMENTAL EMBOLDENING/OUTLINING SUPPORT ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
- /* Compute the norm of a vector */
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
- static
- FT_Pos ft_norm( FT_Vector* vec )
- {
- FT_Int64 t1, t2;
-
-
- MUL_64( vec->x, vec->x, t1 );
- MUL_64( vec->y, vec->y, t2 );
- ADD_64( t1, t2, t1 );
-
- return (FT_Pos)SQRT_64( t1 );
- }
-
-#else /* FT_CONFIG_OPTION_OLD_CALCS */
-
- static
- FT_Pos ft_norm( FT_Vector* vec )
- {
- FT_F26Dot6 u, v, d;
- FT_Int shift;
- FT_ULong H, L, L2, hi, lo, med;
-
-
- u = vec->x; if ( u < 0 ) u = -u;
- v = vec->y; if ( v < 0 ) v = -v;
-
- if ( u < v )
- {
- d = u;
- u = v;
- v = d;
- }
-
- /* check that we are not trying to normalize zero! */
- if ( u == 0 )
- return 0;
-
- /* compute (u*u + v*v) on 64 bits with two 32-bit registers [H:L] */
- hi = (FT_ULong)u >> 16;
- lo = (FT_ULong)u & 0xFFFF;
- med = hi * lo;
-
- H = hi * hi + ( med >> 15 );
- med <<= 17;
- L = lo * lo + med;
- if ( L < med )
- H++;
-
- hi = (FT_ULong)v >> 16;
- lo = (FT_ULong)v & 0xFFFF;
- med = hi * lo;
-
- H += hi * hi + ( med >> 15 );
- med <<= 17;
- L2 = lo * lo + med;
- if ( L2 < med )
- H++;
-
- L += L2;
- if ( L < L2 )
- H++;
-
- /* if the value is smaller than 32 bits */
- shift = 0;
- if ( H == 0 )
- {
- while ( ( L & 0xC0000000UL ) == 0 )
- {
- L <<= 2;
- shift++;
- }
- return ( FT_Sqrt32( L ) >> shift );
- }
- else
- {
- while ( H )
- {
- L = ( L >> 2 ) | ( H << 30 );
- H >>= 2;
- shift++;
- }
- return ( FT_Sqrt32( L ) << shift );
- }
- }
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-
- static
- int ft_test_extrema( FT_Outline* outline,
- int n )
- {
- FT_Vector *prev, *cur, *next;
- FT_Pos product;
- FT_Int first, last;
-
-
- /* we need to compute the `previous' and `next' point */
- /* for these extrema. */
- cur = outline->points + n;
- prev = cur - 1;
- next = cur + 1;
-
- first = 0;
- for ( c = 0; c < outline->n_contours; c++ )
- {
- last = outline->contours[c];
-
- if ( n == first )
- prev = outline->points + last;
-
- if ( n == last )
- next = outline->points + first;
-
- first = last + 1;
- }
-
- product = FT_MulDiv( cur->x - prev->x, /* in.x */
- next->y - cur->y, /* out.y */
- 0x40 )
- -
- FT_MulDiv( cur->y - prev->y, /* in.y */
- next->x - cur->x, /* out.x */
- 0x40 );
-
- if ( product )
- product = product > 0 ? 1 : -1;
-
- return product;
- }
-
-
- /* Compute the orientation of path filling. It differs between TrueType */
- /* and Type1 formats. We could use the `ft_outline_reverse_fill' flag, */
- /* but it is better to re-compute it directly (it seems that this flag */
- /* isn't correctly set for some weird composite glyphs currently). */
- /* */
- /* We do this by computing bounding box points, and computing their */
- /* curvature. */
- /* */
- /* The function returns either 1 or -1. */
- /* */
- static
- int ft_get_orientation( FT_Outline* outline )
- {
- FT_BBox box;
- FT_BBox indices;
- int n, last;
-
-
- indices.xMin = -1;
- indices.yMin = -1;
- indices.xMax = -1;
- indices.yMax = -1;
-
- box.xMin = box.yMin = 32767;
- box.xMax = box.yMax = -32768;
-
- /* is it empty ? */
- if ( outline->n_contours < 1 )
- return 1;
-
- last = outline->contours[outline->n_contours - 1];
-
- for ( n = 0; n <= last; n++ )
- {
- FT_Pos x, y;
-
-
- x = outline->points[n].x;
- if ( x < box.xMin )
- {
- box.xMin = x;
- indices.xMin = n;
- }
- if ( x > box.xMax )
- {
- box.xMax = x;
- indices.xMax = n;
- }
-
- y = outline->points[n].y;
- if ( y < box.yMin )
- {
- box.yMin = y;
- indices.yMin = n;
- }
- if ( y > box.yMax )
- {
- box.yMax = y;
- indices.yMax = n;
- }
- }
-
- /* test orientation of the xmin */
- return ft_test_extrema( outline, indices.xMin ) ||
- ft_test_extrema( outline, indices.yMin ) ||
- ft_test_extrema( outline, indices.xMax ) ||
- ft_test_extrema( outline, indices.yMax ) ||
- 1; /* this is an empty glyph? */
- }
-
-
- static
- FT_Error ft_embolden( FT_Face original,
- FT_Outline* outline,
- FT_Pos* advance )
- {
- FT_Vector u, v;
- FT_Vector* points;
- FT_Vector cur, prev, next;
- FT_Pos distance;
- int c, n, first, orientation;
-
- FT_UNUSED( advance );
-
-
- /* compute control distance */
- distance = FT_MulFix( original->em_size / 60,
- original->size->metrics.y_scale );
-
- orientation = ft_get_orientation( &original->glyph->outline );
-
- points = original->glyph->outline.points;
-
- first = 0;
- for ( c = 0; c < outline->n_contours; c++ )
- {
- int last = outline->contours[c];
-
-
- prev = points[last];
-
- for ( n = first; n <= last; n++ )
- {
- FT_Pos norm, delta, d;
- FT_Vector in, out;
-
-
- cur = points[n];
- if ( n < last ) next = points[n + 1];
- else next = points[first];
-
- /* compute the in and out vectors */
- in.x = cur.x - prev.x;
- in.y = cur.y - prev.y;
-
- out.x = next.x - cur.x;
- out.y = next.y - cur.y;
-
- /* compute U and V */
- norm = ft_norm( &in );
- u.x = orientation * FT_DivFix( in.y, norm );
- u.y = orientation * -FT_DivFix( in.x, norm );
-
- norm = ft_norm( &out );
- v.x = orientation * FT_DivFix( out.y, norm );
- v.y = orientation * -FT_DivFix( out.x, norm );
-
- d = distance;
-
- if ( ( outline->flags[n] & FT_Curve_Tag_On ) == 0 )
- d *= 2;
-
- /* Check discriminant for parallel vectors */
- delta = FT_MulFix( u.x, v.y ) - FT_MulFix( u.y, v.x );
- if ( delta > FT_BOLD_THRESHOLD || delta < -FT_BOLD_THRESHOLD )
- {
- /* Move point -- compute A and B */
- FT_Pos x, y, A, B;
-
-
- A = d + FT_MulFix( cur.x, u.x ) + FT_MulFix( cur.y, u.y );
- B = d + FT_MulFix( cur.x, v.x ) + FT_MulFix( cur.y, v.y );
-
- x = FT_MulFix( A, v.y ) - FT_MulFix( B, u.y );
- y = FT_MulFix( B, u.x ) - FT_MulFix( A, v.x );
-
- outline->points[n].x = distance + FT_DivFix( x, delta );
- outline->points[n].y = distance + FT_DivFix( y, delta );
- }
- else
- {
- /* Vectors are nearly parallel */
- FT_Pos x, y;
-
-
- x = distance + cur.x + FT_MulFix( d, u.x + v.x ) / 2;
- y = distance + cur.y + FT_MulFix( d, u.y + v.y ) / 2;
-
- outline->points[n].x = x;
- outline->points[n].y = y;
- }
-
- prev = cur;
- }
-
- first = last + 1;
- }
-
- if ( advance )
- *advance = ( *advance + distance * 4 ) & -64;
-
- return 0;
- }
-
-#endif /* 0 -- EXPERIMENTAL STUFF! */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftinit.c */
-/* */
-/* FreeType initialization layer (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* The purpose of this file is to implement the following two */
- /* functions: */
- /* */
- /* FT_Add_Default_Modules(): */
- /* This function is used to add the set of default modules to a */
- /* fresh new library object. The set is taken from the header file */
- /* `freetype/config/ftmodule.h'. See the document `FreeType 2.0 */
- /* Build System' for more information. */
- /* */
- /* FT_Init_FreeType(): */
- /* This function creates a system object for the current platform, */
- /* builds a library out of it, then calls FT_Default_Drivers(). */
- /* */
- /* Note that even if FT_Init_FreeType() uses the implementation of the */
- /* system object defined at build time, client applications are still */
- /* able to provide their own `ftsystem.c'. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/config/ftconfig.h>
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/ftmodule.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_init
-
-#undef FT_USE_MODULE
-#define FT_USE_MODULE( x ) extern const FT_Module_Class* x;
-
-#ifdef macintosh
- FT_USE_MODULE(fond_driver_class)
-#endif
-#include <freetype/config/ftmodule.h>
-
-#undef FT_USE_MODULE
-#define FT_USE_MODULE( x ) (const FT_Module_Class*)&x,
-
-static
-const FT_Module_Class* ft_default_modules[] =
- {
-#ifdef macintosh
- FT_USE_MODULE(fond_driver_class)
-#endif
-#include <freetype/config/ftmodule.h>
- 0
- };
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Default_Modules */
- /* */
- /* <Description> */
- /* Adds the set of default drivers to a given library object. */
- /* This is only useful when you create a library object with */
- /* FT_New_Library() (usually to plug a custom memory manager). */
- /* */
- /* <InOut> */
- /* library :: A handle to a new library object. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Add_Default_Modules( FT_Library library )
- {
- FT_Error error;
- const FT_Module_Class** cur;
-
-
- /* test for valid `library' delayed to FT_Add_Module() */
-
- cur = ft_default_modules;
- while ( *cur )
- {
- error = FT_Add_Module( library, *cur );
- /* notify errors, but don't stop */
- if ( error )
- {
- FT_ERROR(( "FT_Add_Default_Module: Cannot install `%s', error = %x\n",
- (*cur)->module_name, error ));
- }
- cur++;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Init_FreeType */
- /* */
- /* <Description> */
- /* Initializes a new FreeType library object. The set of drivers */
- /* that are registered by this function is determined at build time. */
- /* */
- /* <Output> */
- /* library :: A handle to a new library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Init_FreeType( FT_Library* library )
- {
- FT_Error error;
- FT_Memory memory;
-
-
- /* First of all, allocate a new system object -- this function is part */
- /* of the system-specific component, i.e. `ftsystem.c'. */
-
- memory = FT_New_Memory();
- if ( !memory )
- {
- FT_ERROR(( "FT_Init_FreeType: cannot find memory manager\n" ));
- return FT_Err_Unimplemented_Feature;
- }
-
- /* build a library out of it, then fill it with the set of */
- /* default drivers. */
-
- error = FT_New_Library( memory, library );
- if ( !error )
- FT_Add_Default_Modules( *library );
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftlist.c */
-/* */
-/* Generic list support for FreeType (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* This file implements functions relative to list processing. Its */
- /* data structures are defined in `freetype/internal/ftlist.h'. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/internal/ftlist.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftobjs.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_list
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Find */
- /* */
- /* <Description> */
- /* Finds the list node for a given listed object. */
- /* */
- /* <Input> */
- /* list :: A pointer to the parent list. */
- /* data :: The address of the listed object. */
- /* */
- /* <Return> */
- /* List node. NULL if it wasn't found. */
- /* */
- BASE_FUNC( FT_ListNode ) FT_List_Find( FT_List list,
- void* data )
- {
- FT_ListNode cur;
-
-
- cur = list->head;
- while ( cur )
- {
- if ( cur->data == data )
- return cur;
-
- cur = cur->next;
- }
-
- return (FT_ListNode)0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Add */
- /* */
- /* <Description> */
- /* Appends an element to the end of a list. */
- /* */
- /* <InOut> */
- /* list :: A pointer to the parent list. */
- /* node :: The node to append. */
- /* */
- BASE_FUNC( void ) FT_List_Add( FT_List list,
- FT_ListNode node )
- {
- FT_ListNode before = list->tail;
-
-
- node->next = 0;
- node->prev = before;
-
- if ( before )
- before->next = node;
- else
- list->head = node;
-
- list->tail = node;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Insert */
- /* */
- /* <Description> */
- /* Inserts an element at the head of a list. */
- /* */
- /* <InOut> */
- /* list :: A pointer to parent list. */
- /* node :: The node to insert. */
- /* */
- BASE_FUNC( void ) FT_List_Insert( FT_List list,
- FT_ListNode node )
- {
- FT_ListNode after = list->head;
-
-
- node->next = after;
- node->prev = 0;
-
- if ( !after )
- list->tail = node;
- else
- after->prev = node;
-
- list->head = node;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Remove */
- /* */
- /* <Description> */
- /* Removes a node from a list. This function doesn't check whether */
- /* the node is in the list! */
- /* */
- /* <Input> */
- /* node :: The node to remove. */
- /* */
- /* <InOut> */
- /* list :: A pointer to the parent list. */
- /* */
- BASE_FUNC( void ) FT_List_Remove( FT_List list,
- FT_ListNode node )
- {
- FT_ListNode before, after;
-
-
- before = node->prev;
- after = node->next;
-
- if ( before )
- before->next = after;
- else
- list->head = after;
-
- if ( after )
- after->prev = before;
- else
- list->tail = before;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Up */
- /* */
- /* <Description> */
- /* Moves a node to the head/top of a list. Used to maintain LRU */
- /* lists. */
- /* */
- /* <InOut> */
- /* list :: A pointer to the parent list. */
- /* node :: The node to move. */
- /* */
- BASE_FUNC( void ) FT_List_Up( FT_List list,
- FT_ListNode node )
- {
- FT_ListNode before, after;
-
-
- before = node->prev;
- after = node->next;
-
- /* check whether we are already on top of the list */
- if ( !before )
- return;
-
- before->next = after;
-
- if ( after )
- after->prev = before;
- else
- list->tail = before;
-
- node->prev = 0;
- node->next = list->head;
- list->head->prev = node;
- list->head = node;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Iterate */
- /* */
- /* <Description> */
- /* Parses a list and calls a given iterator function on each element. */
- /* Note that parsing is stopped as soon as one of the iterator calls */
- /* returns a non-zero value. */
- /* */
- /* <Input> */
- /* list :: A handle to the list. */
- /* iterator :: An interator function, called on each node of the */
- /* list. */
- /* user :: A user-supplied field which is passed as the second */
- /* argument to the iterator. */
- /* */
- /* <Return> */
- /* The result (a FreeType error code) of the last iterator call. */
- /* */
- BASE_FUNC( FT_Error ) FT_List_Iterate( FT_List list,
- FT_List_Iterator iterator,
- void* user )
- {
- FT_ListNode cur = list->head;
- FT_Error error = FT_Err_Ok;
-
-
- while ( cur )
- {
- FT_ListNode next = cur->next;
-
-
- error = iterator( cur, user );
- if ( error )
- break;
-
- cur = next;
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_List_Finalize */
- /* */
- /* <Description> */
- /* Destroys all elements in the list as well as the list itself. */
- /* */
- /* <Input> */
- /* list :: A handle to the list. */
- /* */
- /* destroy :: A list destructor that will be applied to each element */
- /* of the list. */
- /* */
- /* memory :: The current memory object which handles deallocation. */
- /* */
- /* user :: A user-supplied field which is passed as the last */
- /* argument to the destructor. */
- /* */
- BASE_FUNC( void ) FT_List_Finalize( FT_List list,
- FT_List_Destructor destroy,
- FT_Memory memory,
- void* user )
- {
- FT_ListNode cur;
-
-
- cur = list->head;
- while ( cur )
- {
- FT_ListNode next = cur->next;
- void* data = cur->data;
-
-
- if ( destroy )
- destroy( memory, data, user );
-
- FREE( cur );
- cur = next;
- }
-
- list->head = 0;
- list->tail = 0;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftmm.c */
-/* */
-/* Multiple Master font support (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/ftmm.h>
-#include <freetype/internal/ftobjs.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_mm
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Multi_Master */
- /* */
- /* <Description> */
- /* Retrieves the Multiple Master descriptor of a given font. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* <Output> */
- /* master :: The Multiple Masters descriptor. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Get_Multi_Master( FT_Face face,
- FT_Multi_Master* master )
- {
- FT_Error error;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- error = FT_Err_Invalid_Argument;
-
- if ( FT_HAS_MULTIPLE_MASTERS( face ) )
- {
- FT_Driver driver = face->driver;
- FT_Get_MM_Func func;
-
-
- func = (FT_Get_MM_Func)driver->root.clazz->get_interface(
- FT_MODULE( driver ), "get_mm" );
- if ( func )
- error = func( face, master );
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_MM_Design_Coordinates */
- /* */
- /* <Description> */
- /* For Multiple Masters fonts, choose an interpolated font design */
- /* through design coordinates. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* num_coords :: The number of design coordinates (must be equal to */
- /* the number of axes in the font). */
- /* */
- /* coords :: The design coordinates. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Set_MM_Design_Coordinates(
- FT_Face face,
- FT_UInt num_coords,
- FT_Long* coords )
- {
- FT_Error error;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- error = FT_Err_Invalid_Argument;
-
- if ( FT_HAS_MULTIPLE_MASTERS( face ) )
- {
- FT_Driver driver = face->driver;
- FT_Set_MM_Design_Func func;
-
-
- func = (FT_Set_MM_Design_Func)driver->root.clazz->get_interface(
- FT_MODULE( driver ), "set_mm_design" );
- if ( func )
- error = func( face, num_coords, coords );
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_MM_Blend_Coordinates */
- /* */
- /* <Description> */
- /* For Multiple Masters fonts, choose an interpolated font design */
- /* through normalized blend coordinates. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* num_coords :: The number of design coordinates (must be equal to */
- /* the number of axes in the font). */
- /* */
- /* coords :: The design coordinates (each one must be between 0 */
- /* and 1.0). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Set_MM_Blend_Coordinates(
- FT_Face face,
- FT_UInt num_coords,
- FT_Fixed* coords )
- {
- FT_Error error;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- error = FT_Err_Invalid_Argument;
-
- if ( FT_HAS_MULTIPLE_MASTERS( face ) )
- {
- FT_Driver driver = face->driver;
- FT_Set_MM_Blend_Func func;
-
-
- func = (FT_Set_MM_Blend_Func)driver->root.clazz->get_interface(
- FT_MODULE( driver ), "set_mm_blend" );
- if ( func )
- error = func( face, num_coords, coords );
- }
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftnames.c */
-/* */
-/* Simple interface to access SFNT name tables (which are used */
-/* to hold font names, copyright info, notices, etc.). */
-/* */
-/* This is _not_ used to retrieve glyph names! */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/ftnames.h>
-#include <freetype/internal/tttypes.h>
-
-
-#ifdef FT_CONFIG_OPTION_SFNT_NAMES
-
-
- FT_EXPORT_FUNC( FT_UInt ) FT_Get_Sfnt_Name_Count( FT_Face face )
- {
- return face && ( FT_IS_SFNT( face ) ? ((TT_Face)face)->num_names : 0 );
- }
-
-
- FT_EXPORT_FUNC( FT_Error ) FT_Get_Sfnt_Name( FT_Face face,
- FT_UInt index,
- FT_SfntName* aname )
- {
- FT_Error error = FT_Err_Invalid_Argument;
-
-
- if ( aname && face && FT_IS_SFNT( face ) )
- {
- TT_Face ttface = (TT_Face)face;
-
-
- if ( index < ttface->num_names )
- {
- TT_NameRec* name = ttface->name_table.names + index;
-
-
- aname->platform_id = name->platformID;
- aname->encoding_id = name->encodingID;
- aname->language_id = name->languageID;
- aname->name_id = name->nameID;
- aname->string = (FT_Byte*)name->string;
- aname->string_len = name->stringLength;
-
- error = FT_Err_Ok;
- }
- }
-
- return error;
- }
-
-
-#endif /* FT_CONFIG_OPTION_SFNT_NAMES */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftobjs.c */
-/* */
-/* The FreeType private base classes (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/ftlist.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-
-#include <freetype/tttables.h>
-
-#include <string.h> /* for strcmp() */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** M E M O R Y ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_memory
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Alloc */
- /* */
- /* <Description> */
- /* Allocates a new block of memory. The returned area is always */
- /* zero-filled; this is a strong convention in many FreeType parts. */
- /* */
- /* <Input> */
- /* memory :: A handle to a given `memory object' which handles */
- /* allocation. */
- /* */
- /* size :: The size in bytes of the block to allocate. */
- /* */
- /* <Output> */
- /* P :: A pointer to the fresh new block. It should be set to */
- /* NULL if `size' is 0, or in case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- BASE_FUNC( FT_Error ) FT_Alloc( FT_Memory memory,
- FT_Long size,
- void** P )
- {
- FT_Assert( P != 0 );
-
- if ( size > 0 )
- {
- *P = memory->alloc( memory, size );
- if ( !*P )
- {
- FT_ERROR(( "FT_Alloc:" ));
- FT_ERROR(( " Out of memory? (%ld requested)\n",
- size ));
-
- return FT_Err_Out_Of_Memory;
- }
- MEM_Set( *P, 0, size );
- }
- else
- *P = NULL;
-
- FT_TRACE7(( "FT_Alloc:" ));
- FT_TRACE7(( " size = %ld, block = 0x%08p, ref = 0x%08p\n",
- size, *P, P ));
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Realloc */
- /* */
- /* <Description> */
- /* Reallocates a block of memory pointed to by `*P' to `Size' bytes */
- /* from the heap, possibly changing `*P'. */
- /* */
- /* <Input> */
- /* memory :: A handle to a given `memory object' which handles */
- /* reallocation. */
- /* */
- /* current :: The current block size in bytes. */
- /* */
- /* size :: The new block size in bytes. */
- /* */
- /* <InOut> */
- /* P :: A pointer to the fresh new block. It should be set to */
- /* NULL if `size' is 0, or in case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* All callers of FT_Realloc() _must_ provide the current block size */
- /* as well as the new one. */
- /* */
- BASE_FUNC( FT_Error ) FT_Realloc( FT_Memory memory,
- FT_Long current,
- FT_Long size,
- void** P )
- {
- void* Q;
-
-
- FT_Assert( P != 0 );
-
- /* if the original pointer is NULL, call FT_Alloc() */
- if ( !*P )
- return FT_Alloc( memory, size, P );
-
- /* if the new block if zero-sized, clear the current one */
- if ( size <= 0 )
- {
- FT_Free( memory, P );
- return FT_Err_Ok;
- }
-
- Q = memory->realloc( memory, current, size, *P );
- if ( !Q )
- goto Fail;
-
- *P = Q;
- return FT_Err_Ok;
-
- Fail:
- FT_ERROR(( "FT_Realloc:" ));
- FT_ERROR(( " Failed (current %ld, requested %ld)\n",
- current, size ));
- return FT_Err_Out_Of_Memory;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Free */
- /* */
- /* <Description> */
- /* Releases a given block of memory allocated through FT_Alloc(). */
- /* */
- /* <Input> */
- /* memory :: A handle to a given `memory object' which handles */
- /* memory deallocation */
- /* */
- /* P :: This is the _address_ of a _pointer_ which points to the */
- /* allocated block. It is always set to NULL on exit. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If P or *P are NULL, this function should return successfully. */
- /* This is a strong convention within all of FreeType and its */
- /* drivers. */
- /* */
- BASE_FUNC( void ) FT_Free( FT_Memory memory,
- void** P )
- {
- FT_TRACE7(( "FT_Free:" ));
- FT_TRACE7(( " Freeing block 0x%08p, ref 0x%08p\n",
- P, P ? *P : (void*)0 ));
-
- if ( P && *P )
- {
- memory->free( memory, *P );
- *P = 0;
- }
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** S T R E A M ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_new_input_stream */
- /* */
- /* <Description> */
- /* Creates a new input stream object from an FT_Open_Args structure. */
- /* */
- /* <Note> */
- /* The function expects a valid `astream' parameter. */
- /* */
- static
- FT_Error ft_new_input_stream( FT_Library library,
- FT_Open_Args* args,
- FT_Stream* astream )
- {
- FT_Error error;
- FT_Memory memory;
- FT_Stream stream;
-
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- if ( !args )
- return FT_Err_Invalid_Argument;
-
- *astream = 0;
- memory = library->memory;
- if ( ALLOC( stream, sizeof ( *stream ) ) )
- goto Exit;
-
- stream->memory = memory;
-
- /* now, look at the stream flags */
- if ( args->flags & ft_open_memory )
- {
- error = 0;
- FT_New_Memory_Stream( library,
- args->memory_base,
- args->memory_size,
- stream );
- }
- else if ( args->flags & ft_open_pathname )
- {
- error = FT_New_Stream( args->pathname, stream );
- stream->pathname.pointer = args->pathname;
- }
- else if ( args->flags & ft_open_stream && args->stream )
- {
- *stream = *(args->stream);
- stream->memory = memory;
- }
- else
- error = FT_Err_Invalid_Argument;
-
- if ( error )
- FREE( stream );
-
- *astream = stream;
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Stream */
- /* */
- /* <Description> */
- /* Closes and destroys a stream object. */
- /* */
- /* <Input> */
- /* stream :: The stream to be closed and destroyed. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Done_Stream( FT_Stream stream )
- {
- if ( stream && stream->close )
- stream->close( stream );
- }
-
-
- static
- void ft_done_stream( FT_Stream* astream )
- {
- FT_Stream stream = *astream;
- FT_Memory memory = stream->memory;
-
-
- if ( stream->close )
- stream->close( stream );
-
- FREE( stream );
- *astream = 0;
- }
-
-
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_objs
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** G L Y P H L O A D E R ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* The glyph loader is a simple object which is used to load a set of */
- /* glyphs easily. It is critical for the correct loading of composites. */
- /* */
- /* Ideally, one can see it as a stack of abstract `glyph' objects. */
- /* */
- /* loader.base Is really the bottom of the stack. It describes a */
- /* single glyph image made of the juxtaposition of */
- /* several glyphs (those `in the stack'). */
- /* */
- /* loader.current Describes the top of the stack, on which a new */
- /* glyph can be loaded. */
- /* */
- /* Rewind Clears the stack. */
- /* Prepare Set up `loader.current' for addition of a new glyph */
- /* image. */
- /* Add Add the `current' glyph image to the `base' one, */
- /* and prepare for another one. */
- /* */
- /* The glyph loader is now a base object. Each driver used to */
- /* re-implement it in one way or the other, which wasted code and */
- /* energy. */
- /* */
- /*************************************************************************/
-
-
- /* create a new glyph loader */
- BASE_FUNC( FT_Error ) FT_GlyphLoader_New( FT_Memory memory,
- FT_GlyphLoader** aloader )
- {
- FT_GlyphLoader* loader;
- FT_Error error;
-
-
- if ( !ALLOC( loader, sizeof ( *loader ) ) )
- {
- loader->memory = memory;
- *aloader = loader;
- }
- return error;
- }
-
-
- /* rewind the glyph loader - reset counters to 0 */
- BASE_FUNC( void ) FT_GlyphLoader_Rewind( FT_GlyphLoader* loader )
- {
- FT_GlyphLoad* base = &loader->base;
- FT_GlyphLoad* current = &loader->current;
-
-
- base->outline.n_points = 0;
- base->outline.n_contours = 0;
- base->num_subglyphs = 0;
-
- *current = *base;
- }
-
-
- /* reset the glyph loader, frees all allocated tables */
- /* and starts from zero */
- BASE_FUNC( void ) FT_GlyphLoader_Reset( FT_GlyphLoader* loader )
- {
- FT_Memory memory = loader->memory;
-
-
- FREE( loader->base.outline.points );
- FREE( loader->base.outline.tags );
- FREE( loader->base.outline.contours );
- FREE( loader->base.extra_points );
- FREE( loader->base.subglyphs );
-
- loader->max_points = 0;
- loader->max_contours = 0;
- loader->max_subglyphs = 0;
-
- FT_GlyphLoader_Rewind( loader );
- }
-
-
- /* delete a glyph loader */
- BASE_FUNC( void ) FT_GlyphLoader_Done( FT_GlyphLoader* loader )
- {
- if ( loader )
- {
- FT_Memory memory = loader->memory;
-
-
- FT_GlyphLoader_Reset( loader );
- FREE( loader );
- }
- }
-
-
- /* re-adjust the `current' outline fields */
- static
- void FT_GlyphLoader_Adjust_Points( FT_GlyphLoader* loader )
- {
- FT_Outline* base = &loader->base.outline;
- FT_Outline* current = &loader->current.outline;
-
-
- current->points = base->points + base->n_points;
- current->tags = base->tags + base->n_points;
- current->contours = base->contours + base->n_contours;
-
- /* handle extra points table - if any */
- if ( loader->use_extra )
- loader->current.extra_points =
- loader->base.extra_points + base->n_points;
- }
-
-
- BASE_FUNC( FT_Error ) FT_GlyphLoader_Create_Extra(
- FT_GlyphLoader* loader )
- {
- FT_Error error;
- FT_Memory memory = loader->memory;
-
-
- if ( !ALLOC_ARRAY( loader->base.extra_points,
- loader->max_points, FT_Vector ) )
- {
- loader->use_extra = 1;
- FT_GlyphLoader_Adjust_Points( loader );
- }
- return error;
- }
-
-
- /* re-adjust the `current' subglyphs field */
- static
- void FT_GlyphLoader_Adjust_Subglyphs( FT_GlyphLoader* loader )
- {
- FT_GlyphLoad* base = &loader->base;
- FT_GlyphLoad* current = &loader->current;
-
-
- current->subglyphs = base->subglyphs + base->num_subglyphs;
- }
-
-
- /* Ensure that we can add `n_points' and `n_contours' to our glyph. this */
- /* function reallocates its outline tables if necessary. Note that it */
- /* DOESN'T change the number of points within the loader! */
- /* */
- BASE_FUNC( FT_Error ) FT_GlyphLoader_Check_Points(
- FT_GlyphLoader* loader,
- FT_UInt n_points,
- FT_UInt n_contours )
- {
- FT_Memory memory = loader->memory;
- FT_Error error = FT_Err_Ok;
- FT_Outline* base = &loader->base.outline;
- FT_Outline* current = &loader->current.outline;
- FT_Bool adjust = 1;
-
- FT_UInt new_max;
-
-
- /* check points & tags */
- new_max = base->n_points + current->n_points + n_points;
- if ( new_max > loader->max_points )
- {
- new_max = ( new_max + 7 ) & -8;
- if ( REALLOC_ARRAY( base->points, base->n_points,
- new_max, FT_Vector ) ||
- REALLOC_ARRAY( base->tags, base->n_points,
- new_max, FT_Byte ) )
- goto Exit;
-
- if ( loader->use_extra &&
- REALLOC_ARRAY( loader->base.extra_points, base->n_points,
- new_max, FT_Vector ) )
- goto Exit;
-
- adjust = 1;
- loader->max_points = new_max;
- }
-
- /* check contours */
- new_max = base->n_contours + current->n_contours +
- n_contours;
- if ( new_max > loader->max_contours )
- {
- new_max = ( new_max + 3 ) & -4;
- if ( REALLOC_ARRAY( base->contours, base->n_contours,
- new_max, FT_Short ) )
- goto Exit;
-
- adjust = 1;
- loader->max_contours = new_max;
- }
-
- if ( adjust )
- FT_GlyphLoader_Adjust_Points( loader );
-
- Exit:
- return error;
- }
-
-
- /* Ensure that we can add `n_subglyphs' to our glyph. this function */
- /* reallocates its subglyphs table if necessary. Note that it DOES */
- /* NOT change the number of subglyphs within the loader! */
- /* */
- BASE_FUNC( FT_Error ) FT_GlyphLoader_Check_Subglyphs(
- FT_GlyphLoader* loader,
- FT_UInt n_subs )
- {
- FT_Memory memory = loader->memory;
- FT_Error error = FT_Err_Ok;
- FT_UInt new_max;
-
- FT_GlyphLoad* base = &loader->base;
- FT_GlyphLoad* current = &loader->current;
-
-
- new_max = base->num_subglyphs + current->num_subglyphs + n_subs;
- if ( new_max > loader->max_subglyphs )
- {
- new_max = ( new_max + 1 ) & -2;
- if ( REALLOC_ARRAY( base->subglyphs, base->num_subglyphs,
- new_max, FT_SubGlyph ) )
- goto Exit;
-
- loader->max_subglyphs = new_max;
-
- FT_GlyphLoader_Adjust_Subglyphs( loader );
- }
-
- Exit:
- return error;
- }
-
-
- /* prepare loader for the addition of a new glyph on top of the base one */
- BASE_FUNC( void ) FT_GlyphLoader_Prepare( FT_GlyphLoader* loader )
- {
- FT_GlyphLoad* current = &loader->current;
-
-
- current->outline.n_points = 0;
- current->outline.n_contours = 0;
- current->num_subglyphs = 0;
-
- FT_GlyphLoader_Adjust_Points ( loader );
- FT_GlyphLoader_Adjust_Subglyphs( loader );
- }
-
-
- /* add current glyph to the base image - and prepare for another */
- BASE_FUNC( void ) FT_GlyphLoader_Add( FT_GlyphLoader* loader )
- {
- FT_GlyphLoad* base = &loader->base;
- FT_GlyphLoad* current = &loader->current;
-
- FT_UInt n_curr_contours = current->outline.n_contours;
- FT_UInt n_base_points = base->outline.n_points;
- FT_UInt n;
-
-
- base->outline.n_points += current->outline.n_points;
- base->outline.n_contours += current->outline.n_contours;
- base->num_subglyphs += current->num_subglyphs;
-
- /* adjust contours count in newest outline */
- for ( n = 0; n < n_curr_contours; n++ )
- current->outline.contours[n] += n_base_points;
-
- /* prepare for another new glyph image */
- FT_GlyphLoader_Prepare( loader );
- }
-
-
- BASE_FUNC( FT_Error ) FT_GlyphLoader_Copy_Points( FT_GlyphLoader* target,
- FT_GlyphLoader* source )
- {
- FT_Error error;
- FT_UInt num_points = source->base.outline.n_points;
- FT_UInt num_contours = source->base.outline.n_contours;
-
-
- error = FT_GlyphLoader_Check_Points( target, num_points, num_contours );
- if ( !error )
- {
- FT_Outline* out = &target->base.outline;
- FT_Outline* in = &source->base.outline;
-
-
- MEM_Copy( out->points, in->points,
- num_points * sizeof ( FT_Vector ) );
- MEM_Copy( out->tags, in->tags,
- num_points * sizeof ( char ) );
- MEM_Copy( out->contours, in->contours,
- num_contours * sizeof ( short ) );
-
- /* do we need to copy the extra points? */
- if ( target->use_extra && source->use_extra )
- MEM_Copy( target->base.extra_points, source->base.extra_points,
- num_points * sizeof ( FT_Vector ) );
-
- out->n_points = num_points;
- out->n_contours = num_contours;
-
- FT_GlyphLoader_Adjust_Points( target );
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Error ft_glyphslot_init( FT_GlyphSlot slot )
- {
- FT_Driver driver = slot->face->driver;
- FT_Driver_Class* clazz = driver->clazz;
- FT_Memory memory = driver->root.memory;
- FT_Error error = FT_Err_Ok;
-
-
- slot->library = driver->root.library;
-
- if ( FT_DRIVER_USES_OUTLINES( driver ) )
- error = FT_GlyphLoader_New( memory, &slot->loader );
-
- if ( !error && clazz->init_slot )
- error = clazz->init_slot( slot );
-
- return error;
- }
-
-
- static
- void ft_glyphslot_clear( FT_GlyphSlot slot )
- {
- /* free bitmap if needed */
- if ( slot->flags & ft_glyph_own_bitmap )
- {
- FT_Memory memory = FT_FACE_MEMORY( slot->face );
-
-
- FREE( slot->bitmap.buffer );
- slot->flags &= ~ft_glyph_own_bitmap;
- }
-
- /* clear all public fields in the glyph slot */
- MEM_Set( &slot->metrics, 0, sizeof ( slot->metrics ) );
- MEM_Set( &slot->outline, 0, sizeof ( slot->outline ) );
- MEM_Set( &slot->bitmap, 0, sizeof ( slot->bitmap ) );
-
- slot->bitmap_left = 0;
- slot->bitmap_top = 0;
- slot->num_subglyphs = 0;
- slot->subglyphs = 0;
- slot->control_data = 0;
- slot->control_len = 0;
- slot->other = 0;
- slot->format = ft_glyph_format_none;
-
- slot->linearHoriAdvance = 0;
- slot->linearVertAdvance = 0;
- }
-
-
- static
- void ft_glyphslot_done( FT_GlyphSlot slot )
- {
- FT_Driver driver = slot->face->driver;
- FT_Driver_Class* clazz = driver->clazz;
- FT_Memory memory = driver->root.memory;
-
-
- /* free bitmap buffer if needed */
- if ( slot->flags & ft_glyph_own_bitmap )
- FREE( slot->bitmap.buffer );
-
- /* free glyph loader */
- if ( FT_DRIVER_USES_OUTLINES( driver ) )
- {
- FT_GlyphLoader_Done( slot->loader );
- slot->loader = 0;
- }
-
- if ( clazz->done_slot )
- clazz->done_slot( slot );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_GlyphSlot */
- /* */
- /* <Description> */
- /* It is sometimes useful to have more than one glyph slot for a */
- /* given face object. This function is used to create additional */
- /* slots. All of them are automatically discarded when the face is */
- /* destroyed. */
- /* */
- /* <Input> */
- /* face :: A handle to a parent face object. */
- /* */
- /* <Output> */
- /* aslot :: A handle to a new glyph slot object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_GlyphSlot( FT_Face face,
- FT_GlyphSlot* aslot )
- {
- FT_Error error;
- FT_Driver driver;
- FT_Driver_Class* clazz;
- FT_Memory memory;
- FT_GlyphSlot slot;
-
-
- if ( !face || !aslot || !face->driver )
- return FT_Err_Invalid_Argument;
-
- *aslot = 0;
-
- driver = face->driver;
- clazz = driver->clazz;
- memory = driver->root.memory;
-
- FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" ));
- if ( !ALLOC( slot, clazz->slot_object_size ) )
- {
- slot->face = face;
-
- error = ft_glyphslot_init( slot );
- if ( error )
- {
- ft_glyphslot_done( slot );
- FREE( slot );
- goto Exit;
- }
-
- *aslot = slot;
- }
-
- Exit:
- FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error ));
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_GlyphSlot */
- /* */
- /* <Description> */
- /* Destroys a given glyph slot. Remember however that all slots are */
- /* automatically destroyed with its parent. Using this function is */
- /* not always mandatory. */
- /* */
- /* <Input> */
- /* slot :: A handle to a target glyph slot. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Done_GlyphSlot( FT_GlyphSlot slot )
- {
- if ( slot )
- {
- FT_Driver driver = slot->face->driver;
- FT_Memory memory = driver->root.memory;
- FT_GlyphSlot* parent;
- FT_GlyphSlot cur;
-
-
- /* Remove slot from its parent face's list */
- parent = &slot->face->glyph;
- cur = *parent;
-
- while ( cur )
- {
- if ( cur == slot )
- {
- *parent = cur->next;
- ft_glyphslot_done( slot );
- FREE( slot );
- break;
- }
- cur = cur->next;
- }
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Transform */
- /* */
- /* <Description> */
- /* A function used to set the transformation that is applied to glyph */
- /* images just before they are converted to bitmaps in a glyph slot */
- /* when FT_Render_Glyph() is called. */
- /* */
- /* <InOut> */
- /* face :: A handle to the source face object. */
- /* */
- /* <Input> */
- /* matrix :: A pointer to the transformation's 2x2 matrix. Use 0 for */
- /* the identity matrix. */
- /* delta :: A pointer to the translation vector. Use 0 for the null */
- /* vector. */
- /* */
- /* <Note> */
- /* The transformation is only applied to scalable image formats after */
- /* the glyph has been loaded. It means that hinting is unaltered by */
- /* the transformation and is performed on the character size given in */
- /* the last call to FT_Set_Char_Sizes() or FT_Set_Pixel_Sizes(). */
- /* */
- FT_EXPORT_FUNC( void ) FT_Set_Transform( FT_Face face,
- FT_Matrix* matrix,
- FT_Vector* delta )
- {
- if ( !face )
- return;
-
- face->transform_flags = 0;
-
- if ( !matrix )
- {
- face->transform_matrix.xx = 0x10000L;
- face->transform_matrix.xy = 0;
- face->transform_matrix.yx = 0;
- face->transform_matrix.yy = 0x10000L;
- matrix = &face->transform_matrix;
- }
- else
- face->transform_matrix = *matrix;
-
- /* set transform_flags bit flag 0 if `matrix' isn't the identity */
- if ( ( matrix->xy | matrix->yx ) ||
- matrix->xx != 0x10000L ||
- matrix->yy != 0x10000L )
- face->transform_flags |= 1;
-
- if ( !delta )
- {
- face->transform_delta.x = 0;
- face->transform_delta.y = 0;
- delta = &face->transform_delta;
- }
- else
- face->transform_delta = *delta;
-
- /* set transform_flags bit flag 1 if `delta' isn't the null vector */
- if ( delta->x | delta->y )
- face->transform_flags |= 2;
- }
-
-
- static FT_Renderer ft_lookup_glyph_renderer( FT_GlyphSlot slot );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Load_Glyph */
- /* */
- /* <Description> */
- /* A function used to load a single glyph within a given glyph slot, */
- /* for a given size. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object where the glyph */
- /* will be loaded. */
- /* */
- /* glyph_index :: The index of the glyph in the font file. */
- /* */
- /* load_flags :: A flag indicating what to load for this glyph. The */
- /* FT_LOAD_XXX constants can be used to control the */
- /* glyph loading process (e.g., whether the outline */
- /* should be scaled, whether to load bitmaps or not, */
- /* whether to hint the outline, etc). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If the glyph image is not a bitmap, and if the bit flag */
- /* FT_LOAD_IGNORE_TRANSFORM is unset, the glyph image will be */
- /* transformed with the information passed to a previous call to */
- /* FT_Set_Transform. */
- /* */
- /* Note that this also transforms the `face.glyph.advance' field, but */
- /* *not* the values in `face.glyph.metrics'. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Load_Glyph( FT_Face face,
- FT_UInt glyph_index,
- FT_Int load_flags )
- {
- FT_Error error;
- FT_Driver driver;
- FT_GlyphSlot slot;
- FT_Library library;
- FT_Bool autohint;
- FT_Module hinter;
-
-
- if ( !face || !face->size || !face->glyph )
- return FT_Err_Invalid_Face_Handle;
-
- if ( glyph_index >= (FT_UInt)face->num_glyphs )
- return FT_Err_Invalid_Argument;
-
- slot = face->glyph;
- ft_glyphslot_clear( slot );
-
- driver = face->driver;
-
- /* when the flag NO_RECURSE is set, we disable hinting and scaling */
- if ( load_flags & FT_LOAD_NO_RECURSE )
- load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
-
- /* do we need to load the glyph through the auto-hinter? */
- library = driver->root.library;
- hinter = library->auto_hinter;
- autohint = hinter &&
- !( load_flags & ( FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING ) );
- if ( autohint )
- {
- if ( FT_DRIVER_HAS_HINTER( driver ) &&
- !( load_flags & FT_LOAD_FORCE_AUTOHINT ) )
- autohint = 0;
- }
-
- if ( autohint )
- {
- FT_AutoHinter_Interface* hinting;
-
-
- hinting = (FT_AutoHinter_Interface*)hinter->clazz->module_interface;
- error = hinting->load_glyph( (FT_AutoHinter)hinter, slot, face->size,
- glyph_index, load_flags );
- }
- else
- error = driver->clazz->load_glyph( slot,
- face->size,
- glyph_index,
- load_flags );
- if ( error )
- goto Exit;
-
- /* compute the advance */
- if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
- {
- slot->advance.x = 0;
- slot->advance.y = slot->metrics.vertAdvance;
- }
- else
- {
- slot->advance.x = slot->metrics.horiAdvance;
- slot->advance.y = 0;
- }
-
- /* now, transform the glyph image when needed */
- if ( face->transform_flags )
- {
- /* get renderer */
- FT_Renderer renderer = ft_lookup_glyph_renderer( slot );
-
-
- if ( renderer )
- error = renderer->clazz->transform_glyph( renderer, slot,
- &face->transform_matrix,
- &face->transform_delta );
- /* transform advance */
- FT_Vector_Transform( &slot->advance, &face->transform_matrix );
- }
-
- /* do we need to render the image now? */
- if ( !error &&
- slot->format != ft_glyph_format_bitmap &&
- slot->format != ft_glyph_format_composite &&
- load_flags & FT_LOAD_RENDER )
- {
- error = FT_Render_Glyph( slot,
- ( load_flags & FT_LOAD_MONOCHROME )
- ? ft_render_mode_mono
- : ft_render_mode_normal );
- }
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Load_Char */
- /* */
- /* <Description> */
- /* A function used to load a single glyph within a given glyph slot, */
- /* for a given size, according to its character code. */
- /* */
- /* <Input> */
- /* face :: A handle to a target face object where the glyph */
- /* will be loaded. */
- /* */
- /* char_code :: The glyph's character code, according to the */
- /* current charmap used in the face. */
- /* */
- /* load_flags :: A flag indicating what to load for this glyph. The */
- /* FT_LOAD_XXX constants can be used to control the */
- /* glyph loading process (e.g., whether the outline */
- /* should be scaled, whether to load bitmaps or not, */
- /* whether to hint the outline, etc). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If the face has no current charmap, or if the character code */
- /* is not defined in the charmap, this function will return an */
- /* error. */
- /* */
- /* If the glyph image is not a bitmap, and if the bit flag */
- /* FT_LOAD_IGNORE_TRANSFORM is unset, the glyph image will be */
- /* transformed with the information passed to a previous call to */
- /* FT_Set_Transform(). */
- /* */
- /* Note that this also transforms the `face.glyph.advance' field, but */
- /* *not* the values in `face.glyph.metrics'. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Load_Char( FT_Face face,
- FT_ULong char_code,
- FT_Int load_flags )
- {
- FT_UInt glyph_index;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- glyph_index = (FT_UInt)char_code;
- if ( face->charmap )
- glyph_index = FT_Get_Char_Index( face, char_code );
-
- return FT_Load_Glyph( face, glyph_index, load_flags );
- }
-
-
- /* destructor for sizes list */
- static
- void destroy_size( FT_Memory memory,
- FT_Size size,
- FT_Driver driver )
- {
- /* finalize client-specific data */
- if ( size->generic.finalizer )
- size->generic.finalizer( size );
-
- /* finalize format-specific stuff */
- if ( driver->clazz->done_size )
- driver->clazz->done_size( size );
-
- FREE( size );
- }
-
-
- /* destructor for faces list */
- static
- void destroy_face( FT_Memory memory,
- FT_Face face,
- FT_Driver driver )
- {
- FT_Driver_Class* clazz = driver->clazz;
-
-
- /* discard auto-hinting data */
- if ( face->autohint.finalizer )
- face->autohint.finalizer( face->autohint.data );
-
- /* Discard glyph slots for this face */
- /* Beware! FT_Done_GlyphSlot() changes the field `face->slot' */
- while ( face->glyph )
- FT_Done_GlyphSlot( face->glyph );
-
- /* Discard all sizes for this face */
- FT_List_Finalize( &face->sizes_list,
- (FT_List_Destructor)destroy_size,
- memory,
- driver );
- face->size = 0;
-
- /* Now discard client data */
- if ( face->generic.finalizer )
- face->generic.finalizer( face );
-
- /* finalize format-specific stuff */
- if ( clazz->done_face )
- clazz->done_face( face );
-
- /* close the stream for this face if needed */
- if ( ( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) == 0 )
- ft_done_stream( &face->stream );
-
- /* get rid of it */
- FREE( face );
- }
-
-
- static
- void Destroy_Driver( FT_Driver driver )
- {
- FT_List_Finalize( &driver->faces_list,
- (FT_List_Destructor)destroy_face,
- driver->root.memory,
- driver );
-
- /* check whether we need to drop the driver's glyph loader */
- if ( FT_DRIVER_USES_OUTLINES( driver ) )
- FT_GlyphLoader_Done( driver->glyph_loader );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* open_face */
- /* */
- /* <Description> */
- /* This function does some work for FT_Open_Face(). */
- /* */
- static
- FT_Error open_face( FT_Driver driver,
- FT_Stream stream,
- FT_Long face_index,
- FT_Int num_params,
- FT_Parameter* params,
- FT_Face* aface )
- {
- FT_Memory memory;
- FT_Driver_Class* clazz;
- FT_Face face = 0;
- FT_Error error;
-
-
- clazz = driver->clazz;
- memory = driver->root.memory;
-
- /* allocate the face object and perform basic initialization */
- if ( ALLOC( face, clazz->face_object_size ) )
- goto Fail;
-
- face->driver = driver;
- face->memory = memory;
- face->stream = stream;
-
- error = clazz->init_face( stream,
- face,
- face_index,
- num_params,
- params );
- if ( error )
- goto Fail;
-
- *aface = face;
-
- Fail:
- if ( error )
- {
- clazz->done_face( face );
- FREE( face );
- *aface = 0;
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Face */
- /* */
- /* <Description> */
- /* Creates a new face object from a given resource and typeface index */
- /* using a pathname to the font file. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* pathname :: A path to the font file. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* aface :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_New_Face() can be used to determine and/or check the font */
- /* format of a given font resource. If the `face_index' field is */
- /* negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_Face( FT_Library library,
- const char* pathname,
- FT_Long face_index,
- FT_Face* aface )
- {
- FT_Open_Args args;
-
-
- /* test for valid `library' and `aface' delayed to FT_Open_Face() */
- if ( !pathname )
- return FT_Err_Invalid_Argument;
-
- args.flags = ft_open_pathname;
- args.pathname = (char*)pathname;
-
- return FT_Open_Face( library, &args, face_index, aface );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Memory_Face */
- /* */
- /* <Description> */
- /* Creates a new face object from a given resource and typeface index */
- /* using a font file already loaded into memory. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* file_base :: A pointer to the beginning of the font data. */
- /* */
- /* file_size :: The size of the memory chunk used by the font data. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* face :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_New_Memory_Face() can be used to determine and/or check the */
- /* font format of a given font resource. If the `face_index' field */
- /* is negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_Memory_Face( FT_Library library,
- FT_Byte* file_base,
- FT_Long file_size,
- FT_Long face_index,
- FT_Face* face )
- {
- FT_Open_Args args;
-
-
- /* test for valid `library' and `face' delayed to FT_Open_Face() */
- if ( !file_base )
- return FT_Err_Invalid_Argument;
-
- args.flags = ft_open_memory;
- args.memory_base = file_base;
- args.memory_size = file_size;
-
- return FT_Open_Face( library, &args, face_index, face );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Open_Face */
- /* */
- /* <Description> */
- /* Opens a face object from a given resource and typeface index using */
- /* an `FT_Open_Args' structure. If the face object doesn't exist, it */
- /* will be created. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* args :: A pointer to an `FT_Open_Args' structure which must */
- /* be filled by the caller. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* aface :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_Open_Face() can be used to determine and/or check the font */
- /* format of a given font resource. If the `face_index' field is */
- /* negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Open_Face( FT_Library library,
- FT_Open_Args* args,
- FT_Long face_index,
- FT_Face* aface )
- {
- FT_Error error;
- FT_Driver driver;
- FT_Memory memory;
- FT_Stream stream;
- FT_Face face = 0;
- FT_ListNode node = 0;
-
-
- /* test for valid `library' and `args' delayed to */
- /* ft_new_input_stream() */
-
- if ( !aface )
- return FT_Err_Invalid_Argument;
-
- *aface = 0;
-
- /* create input stream */
- error = ft_new_input_stream( library, args, &stream );
- if ( error )
- goto Exit;
-
- memory = library->memory;
-
- /* If the font driver is specified in the `args' structure, use */
- /* it. Otherwise, we scan the list of registered drivers. */
- if ( args->flags & ft_open_driver && args->driver )
- {
- driver = FT_DRIVER( args->driver );
-
- /* not all modules are drivers, so check... */
- if ( FT_MODULE_IS_DRIVER( driver ) )
- {
- FT_Int num_params = 0;
- FT_Parameter* params = 0;
-
-
- if ( args->flags & ft_open_params )
- {
- num_params = args->num_params;
- params = args->params;
- }
-
- error = open_face( driver, stream, face_index,
- num_params, params, &face );
- if ( !error )
- goto Success;
- }
- else
- error = FT_Err_Invalid_Handle;
-
- ft_done_stream( &stream );
- goto Fail;
- }
- else
- {
- /* check each font driver for an appropriate format */
- FT_Module* cur = library->modules;
- FT_Module* limit = cur + library->num_modules;
-
-
- for ( ; cur < limit; cur++ )
- {
- /* not all modules are font drivers, so check... */
- if ( FT_MODULE_IS_DRIVER( cur[0] ) )
- {
- FT_Int num_params = 0;
- FT_Parameter* params = 0;
-
-
- driver = FT_DRIVER( cur[0] );
-
- if ( args->flags & ft_open_params )
- {
- num_params = args->num_params;
- params = args->params;
- }
-
- error = open_face( driver, stream, face_index,
- num_params, params, &face );
- if ( !error )
- goto Success;
-
- if ( error != FT_Err_Unknown_File_Format )
- goto Fail;
- }
- }
-
- ft_done_stream( &stream );
-
- /* no driver is able to handle this format */
- error = FT_Err_Unknown_File_Format;
- goto Fail;
- }
-
- Success:
- FT_TRACE4(( "FT_New_Face: New face object, adding to list\n" ));
-
- /* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
- if ( args->flags & ft_open_stream && args->stream )
- face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
-
- /* add the face object to its driver's list */
- if ( ALLOC( node, sizeof ( *node ) ) )
- goto Fail;
-
- node->data = face;
- /* don't assume driver is the same as face->driver, so use */
- /* face->driver instead. */
- FT_List_Add( &face->driver->faces_list, node );
-
- /* now allocate a glyph slot object for the face */
- {
- FT_GlyphSlot slot;
-
-
- FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" ));
-
- error = FT_New_GlyphSlot( face, &slot );
- if ( error )
- goto Fail;
-
- face->glyph = slot;
- }
-
- /* finally, allocate a size object for the face */
- {
- FT_Size size;
-
-
- FT_TRACE4(( "FT_Open_Face: Creating size object\n" ));
-
- error = FT_New_Size( face, &size );
- if ( error )
- goto Fail;
-
- face->size = size;
- }
-
- /* initialize transformation for convenience functions */
- face->transform_matrix.xx = 0x10000L;
- face->transform_matrix.xy = 0;
- face->transform_matrix.yx = 0;
- face->transform_matrix.yy = 0x10000L;
-
- face->transform_delta.x = 0;
- face->transform_delta.y = 0;
-
- *aface = face;
- goto Exit;
-
- Fail:
- FT_Done_Face( face );
-
- Exit:
- FT_TRACE4(( "FT_Open_Face: Return %d\n", error ));
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Attach_File */
- /* */
- /* <Description> */
- /* `Attaches' a given font file to an existing face. This is usually */
- /* to read additional information for a single face object. For */
- /* example, it is used to read the AFM files that come with Type 1 */
- /* fonts in order to add kerning data and other metrics. */
- /* */
- /* <InOut> */
- /* face :: The target face object. */
- /* */
- /* <Input> */
- /* filepathname :: An 8-bit pathname naming the `metrics' file. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If your font file is in memory, or if you want to provide your */
- /* own input stream object, use FT_Attach_Stream(). */
- /* */
- /* The meaning of the `attach' action (i.e., what really happens when */
- /* the new file is read) is not fixed by FreeType itself. It really */
- /* depends on the font format (and thus the font driver). */
- /* */
- /* Client applications are expected to know what they are doing */
- /* when invoking this function. Most drivers simply do not implement */
- /* file attachments. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Attach_File( FT_Face face,
- const char* filepathname )
- {
- FT_Open_Args open;
-
-
- /* test for valid `face' delayed to FT_Attach_Stream() */
-
- if ( !filepathname )
- return FT_Err_Invalid_Argument;
-
- open.flags = ft_open_pathname;
- open.pathname = (char*)filepathname;
-
- return FT_Attach_Stream( face, &open );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Attach_Stream */
- /* */
- /* <Description> */
- /* This function is similar to FT_Attach_File() with the exception */
- /* that it reads the attachment from an arbitrary stream. */
- /* */
- /* <Input> */
- /* face :: The target face object. */
- /* */
- /* parameters :: A pointer to an FT_Open_Args structure used to */
- /* describe the input stream to FreeType. */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The meaning of the `attach' (i.e. what really happens when the */
- /* new file is read) is not fixed by FreeType itself. It really */
- /* depends on the font format (and thus the font driver). */
- /* */
- /* Client applications are expected to know what they are doing */
- /* when invoking this function. Most drivers simply do not implement */
- /* file attachments. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Attach_Stream( FT_Face face,
- FT_Open_Args* parameters )
- {
- FT_Stream stream;
- FT_Error error;
- FT_Driver driver;
-
- FT_Driver_Class* clazz;
-
-
- /* test for valid `parameters' delayed to ft_new_input_stream() */
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- driver = face->driver;
- if ( !driver )
- return FT_Err_Invalid_Driver_Handle;
-
- error = ft_new_input_stream( driver->root.library, parameters, &stream );
- if ( error )
- goto Exit;
-
- /* we implement FT_Attach_Stream in each driver through the */
- /* `attach_file' interface */
-
- error = FT_Err_Unimplemented_Feature;
- clazz = driver->clazz;
- if ( clazz->attach_file )
- error = clazz->attach_file( face, stream );
-
- /* close the attached stream */
- if ( !parameters->stream || ( parameters->flags & ft_open_stream ) )
- ft_done_stream( &stream );
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Face */
- /* */
- /* <Description> */
- /* Discards a given face object, as well as all of its child slots */
- /* and sizes. */
- /* */
- /* <Input> */
- /* face :: A handle to a target face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Done_Face( FT_Face face )
- {
- FT_Error error;
- FT_Driver driver;
- FT_Memory memory;
- FT_ListNode node;
-
-
- error = FT_Err_Invalid_Face_Handle;
- if ( face && face->driver )
- {
- driver = face->driver;
- memory = driver->root.memory;
-
- /* find face in driver's list */
- node = FT_List_Find( &driver->faces_list, face );
- if ( node )
- {
- /* remove face object from the driver's list */
- FT_List_Remove( &driver->faces_list, node );
- FREE( node );
-
- /* now destroy the object proper */
- destroy_face( memory, face, driver );
- error = FT_Err_Ok;
- }
- }
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Size */
- /* */
- /* <Description> */
- /* Creates a new size object from a given face object. */
- /* */
- /* <Input> */
- /* face :: A handle to a parent face object. */
- /* */
- /* <Output> */
- /* asize :: A handle to a new size object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_Size( FT_Face face,
- FT_Size* asize )
- {
- FT_Error error;
- FT_Memory memory;
- FT_Driver driver;
- FT_Driver_Class* clazz;
-
- FT_Size size = 0;
- FT_ListNode node = 0;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- if ( !asize )
- return FT_Err_Invalid_Size_Handle;
-
- if ( !face->driver )
- return FT_Err_Invalid_Driver_Handle;
-
- *asize = 0;
-
- driver = face->driver;
- clazz = driver->clazz;
- memory = face->memory;
-
- /* Allocate new size object and perform basic initialisation */
- if ( ALLOC( size, clazz->size_object_size ) ||
- ALLOC( node, sizeof ( FT_ListNodeRec ) ) )
- goto Exit;
-
- size->face = face;
-
- if ( clazz->init_size )
- error = clazz->init_size( size );
-
- /* in case of success, add to the face's list */
- if ( !error )
- {
- *asize = size;
- node->data = size;
- FT_List_Add( &face->sizes_list, node );
- }
-
- Exit:
- if ( error )
- {
- FREE( node );
- FREE( size );
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Size */
- /* */
- /* <Description> */
- /* Discards a given size object. */
- /* */
- /* <Input> */
- /* size :: A handle to a target size object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Done_Size( FT_Size size )
- {
- FT_Error error;
- FT_Driver driver;
- FT_Memory memory;
- FT_Face face;
- FT_ListNode node;
-
-
- if ( !size )
- return FT_Err_Invalid_Size_Handle;
-
- face = size->face;
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- driver = face->driver;
- if ( !driver )
- return FT_Err_Invalid_Driver_Handle;
-
- memory = driver->root.memory;
-
- error = FT_Err_Ok;
- node = FT_List_Find( &face->sizes_list, size );
- if ( node )
- {
- FT_List_Remove( &face->sizes_list, node );
- FREE( node );
-
- if ( face->size == size )
- {
- face->size = 0;
- if ( face->sizes_list.head )
- face->size = (FT_Size)(face->sizes_list.head->data);
- }
-
- destroy_size( memory, size, driver );
- }
- else
- error = FT_Err_Invalid_Size_Handle;
-
- return FT_Err_Ok;
- }
-
-
- static
- void ft_recompute_scaled_metrics( FT_Face face,
- FT_Size_Metrics* metrics )
- {
- /* Compute root ascender, descender, test height, and max_advance */
-
- metrics->ascender = ( FT_MulFix( face->ascender,
- metrics->y_scale ) + 32 ) & -64;
-
- metrics->descender = ( FT_MulFix( face->descender,
- metrics->y_scale ) + 32 ) & -64;
-
- metrics->height = ( FT_MulFix( face->height,
- metrics->y_scale ) + 32 ) & -64;
-
- metrics->max_advance = ( FT_MulFix( face->max_advance_width,
- metrics->x_scale ) + 32 ) & -64;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Char_Size */
- /* */
- /* <Description> */
- /* Sets the character dimensions of a given face object. The */
- /* `char_width' and `char_height' values are used for the width and */
- /* height, respectively, expressed in 26.6 fractional points. */
- /* */
- /* If the horizontal or vertical resolution values are zero, a */
- /* default value of 72dpi is used. Similarly, if one of the */
- /* character dimensions is zero, its value is set equal to the other. */
- /* */
- /* <InOut> */
- /* size :: A handle to a target size object. */
- /* */
- /* <Input> */
- /* char_width :: The character width, in 26.6 fractional points. */
- /* */
- /* char_height :: The character height, in 26.6 fractional */
- /* points. */
- /* */
- /* horz_resolution :: The horizontal resolution. */
- /* */
- /* vert_resolution :: The vertical resolution. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* When dealing with fixed-size faces (i.e., non-scalable formats), */
- /* use the function FT_Set_Pixel_Sizes(). */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Set_Char_Size( FT_Face face,
- FT_F26Dot6 char_width,
- FT_F26Dot6 char_height,
- FT_UInt horz_resolution,
- FT_UInt vert_resolution )
- {
- FT_Error error = FT_Err_Ok;
- FT_Driver driver;
- FT_Memory memory;
- FT_Driver_Class* clazz;
- FT_Size_Metrics* metrics;
- FT_Long dim_x, dim_y;
-
-
- if ( !face || !face->size || !face->driver )
- return FT_Err_Invalid_Face_Handle;
-
- driver = face->driver;
- metrics = &face->size->metrics;
-
- if ( !char_width )
- char_width = char_height;
-
- else if ( !char_height )
- char_height = char_width;
-
- if ( !horz_resolution )
- horz_resolution = 72;
-
- if ( !vert_resolution )
- vert_resolution = 72;
-
- driver = face->driver;
- clazz = driver->clazz;
- memory = driver->root.memory;
-
- /* default processing -- this can be overridden by the driver */
- if ( char_width < 1 * 64 )
- char_width = 1 * 64;
- if ( char_height < 1 * 64 )
- char_height = 1 * 64;
-
- /* Compute pixel sizes in 26.6 units */
- dim_x = ( ( ( char_width * horz_resolution ) / 72 ) + 32 ) & -64;
- dim_y = ( ( ( char_height * vert_resolution ) / 72 ) + 32 ) & -64;
-
- metrics->x_ppem = (FT_UShort)( dim_x >> 6 );
- metrics->y_ppem = (FT_UShort)( dim_y >> 6 );
-
- metrics->x_scale = 0x10000L;
- metrics->y_scale = 0x10000L;
-
- if ( face->face_flags & FT_FACE_FLAG_SCALABLE )
- {
- metrics->x_scale = FT_DivFix( dim_x, face->units_per_EM );
- metrics->y_scale = FT_DivFix( dim_y, face->units_per_EM );
-
- ft_recompute_scaled_metrics( face, metrics );
- }
-
- if ( clazz->set_char_sizes )
- error = clazz->set_char_sizes( face->size,
- char_width,
- char_height,
- horz_resolution,
- vert_resolution );
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Pixel_Sizes */
- /* */
- /* <Description> */
- /* Sets the character dimensions of a given face object. The width */
- /* and height are expressed in integer pixels. */
- /* */
- /* If one of the character dimensions is zero, its value is set equal */
- /* to the other. */
- /* */
- /* <InOut> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Input> */
- /* pixel_width :: The character width, in integer pixels. */
- /* */
- /* pixel_height :: The character height, in integer pixels. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Set_Pixel_Sizes( FT_Face face,
- FT_UInt pixel_width,
- FT_UInt pixel_height )
- {
- FT_Error error = FT_Err_Ok;
- FT_Driver driver;
- FT_Memory memory;
- FT_Driver_Class* clazz;
- FT_Size_Metrics* metrics = &face->size->metrics;
-
-
- if ( !face || !face->size || !face->driver )
- return FT_Err_Invalid_Face_Handle;
-
- driver = face->driver;
- clazz = driver->clazz;
- memory = driver->root.memory;
-
- /* default processing -- this can be overridden by the driver */
- if ( pixel_width == 0 )
- pixel_width = pixel_height;
-
- else if ( pixel_height == 0 )
- pixel_height = pixel_width;
-
- if ( pixel_width < 1 )
- pixel_width = 1;
- if ( pixel_height < 1 )
- pixel_height = 1;
-
- metrics->x_ppem = pixel_width;
- metrics->y_ppem = pixel_height;
-
- if ( face->face_flags & FT_FACE_FLAG_SCALABLE )
- {
- metrics->x_scale = FT_DivFix( metrics->x_ppem << 6,
- face->units_per_EM );
-
- metrics->y_scale = FT_DivFix( metrics->y_ppem << 6,
- face->units_per_EM );
-
- ft_recompute_scaled_metrics( face, metrics );
- }
-
- if ( clazz->set_pixel_sizes )
- error = clazz->set_pixel_sizes( face->size,
- pixel_width,
- pixel_height );
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Kerning */
- /* */
- /* <Description> */
- /* Returns the kerning vector between two glyphs of a same face. */
- /* */
- /* <Input> */
- /* face :: A handle to a source face object. */
- /* */
- /* left_glyph :: The index of the left glyph in the kern pair. */
- /* */
- /* right_glyph :: The index of the right glyph in the kern pair. */
- /* */
- /* kern_mode :: See FT_Kerning_Mode() for more information. */
- /* Determines the scale/dimension of the returned */
- /* kerning vector. */
- /* */
- /* <Output> */
- /* kerning :: The kerning vector. This is in font units for */
- /* scalable formats, and in pixels for fixed-sizes */
- /* formats. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Only horizontal layouts (left-to-right & right-to-left) are */
- /* supported by this method. Other layouts, or more sophisticated */
- /* kernings, are out of the scope of this API function -- they can be */
- /* implemented through format-specific interfaces. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Get_Kerning( FT_Face face,
- FT_UInt left_glyph,
- FT_UInt right_glyph,
- FT_UInt kern_mode,
- FT_Vector* kerning )
- {
- FT_Error error = FT_Err_Ok;
- FT_Driver driver;
- FT_Memory memory;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- if ( !kerning )
- return FT_Err_Invalid_Argument;
-
- driver = face->driver;
- memory = driver->root.memory;
-
- kerning->x = 0;
- kerning->y = 0;
-
- if ( driver->clazz->get_kerning )
- {
- error = driver->clazz->get_kerning( face,
- left_glyph,
- right_glyph,
- kerning );
- if ( !error )
- {
- if ( kern_mode != ft_kerning_unscaled )
- {
- kerning->x = FT_MulFix( kerning->x, face->size->metrics.x_scale );
- kerning->y = FT_MulFix( kerning->y, face->size->metrics.y_scale );
-
- if ( kern_mode != ft_kerning_unfitted )
- {
- kerning->x = ( kerning->x + 32 ) & -64;
- kerning->y = ( kerning->y + 32 ) & -64;
- }
- }
- }
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Select_Charmap */
- /* */
- /* <Description> */
- /* Selects a given charmap by its encoding tag (as listed in */
- /* `freetype.h'). */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* */
- /* encoding :: A handle to the selected charmap. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function will return an error if no charmap in the face */
- /* corresponds to the encoding queried here. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Select_Charmap( FT_Face face,
- FT_Encoding encoding )
- {
- FT_CharMap* cur;
- FT_CharMap* limit;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- cur = face->charmaps;
- if ( !cur )
- return FT_Err_Invalid_CharMap_Handle;
-
- limit = cur + face->num_charmaps;
-
- for ( ; cur < limit; cur++ )
- {
- if ( cur[0]->encoding == encoding )
- {
- face->charmap = cur[0];
- return 0;
- }
- }
-
- return FT_Err_Invalid_Argument;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Charmap */
- /* */
- /* <Description> */
- /* Selects a given charmap for character code to glyph index */
- /* decoding. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* charmap :: A handle to the selected charmap. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function will return an error if the charmap is not part of */
- /* the face (i.e., if it is not listed in the face->charmaps[] */
- /* table). */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Set_Charmap( FT_Face face,
- FT_CharMap charmap )
- {
- FT_CharMap* cur;
- FT_CharMap* limit;
-
-
- if ( !face )
- return FT_Err_Invalid_Face_Handle;
-
- cur = face->charmaps;
- if ( !cur )
- return FT_Err_Invalid_CharMap_Handle;
-
- limit = cur + face->num_charmaps;
-
- for ( ; cur < limit; cur++ )
- {
- if ( cur[0] == charmap )
- {
- face->charmap = cur[0];
- return 0;
- }
- }
- return FT_Err_Invalid_Argument;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Char_Index */
- /* */
- /* <Description> */
- /* Returns the glyph index of a given character code. This function */
- /* uses a charmap object to do the translation. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* */
- /* charcode :: The character code. */
- /* */
- /* <Return> */
- /* The glyph index. 0 means `undefined character code'. */
- /* */
- FT_EXPORT_FUNC( FT_UInt ) FT_Get_Char_Index( FT_Face face,
- FT_ULong charcode )
- {
- FT_UInt result;
- FT_Driver driver;
-
-
- result = 0;
- if ( face && face->charmap )
- {
- driver = face->driver;
- result = driver->clazz->get_char_index( face->charmap, charcode );
- }
- return result;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Glyph_Name */
- /* */
- /* <Description> */
- /* Retrieves the ASCII name of a given glyph in a face. This only */
- /* works for those faces where FT_HAS_GLYPH_NAME(face) returns true. */
- /* */
- /* <Input> */
- /* face :: A handle to a source face object. */
- /* */
- /* glyph_index :: The glyph index. */
- /* */
- /* buffer :: A pointer to a target buffer where the name will be */
- /* copied to. */
- /* */
- /* buffer_max :: The maximal number of bytes available in the */
- /* buffer. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* An error is returned if the face doesn't provide glyph names or if */
- /* the glyph index is invalid. In all cases of failure, the first */
- /* byte of `buffer' will be set to 0 to indicate an empty name. */
- /* */
- /* The glyph name is truncated to fit within the buffer if it is too */
- /* long. The returned string is always zero-terminated. */
- /* */
- /* This function is not compiled within the library if the config */
- /* macro FT_CONFIG_OPTION_NO_GLYPH_NAMES is defined in */
- /* `include/freetype/config/ftoptions.h' */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Get_Glyph_Name( FT_Face face,
- FT_UInt glyph_index,
- FT_Pointer buffer,
- FT_UInt buffer_max )
- {
- FT_Error error = FT_Err_Invalid_Argument;
-
-
- /* clean up buffer */
- if ( buffer && buffer_max > 0 )
- ((FT_Byte*)buffer)[0] = 0;
-
- if ( face &&
- glyph_index < (FT_UInt)face->num_glyphs &&
- FT_HAS_GLYPH_NAMES( face ) )
- {
- /* now, lookup for glyph name */
- FT_Driver driver = face->driver;
- FT_Module_Class* clazz = FT_MODULE_CLASS( driver );
-
-
- if ( clazz->get_interface )
- {
- FT_Glyph_Name_Requester requester;
-
-
- requester = (FT_Glyph_Name_Requester)clazz->get_interface(
- FT_MODULE( driver ), "glyph_name" );
- if ( requester )
- error = requester( face, glyph_index, buffer, buffer_max );
- }
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Sfnt_Table */
- /* */
- /* <Description> */
- /* Returns a pointer to a given SFNT table within a face. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* tag :: An index of an SFNT table. */
- /* */
- /* <Return> */
- /* A type-less pointer to the table. This will be 0 in case of */
- /* error, or if the corresponding table was not found *OR* loaded */
- /* from the file. */
- /* */
- /* <Note> */
- /* The table is owned by the face object, and disappears with it. */
- /* */
- /* This function is only useful to access SFNT tables that are loaded */
- /* by the sfnt/truetype/opentype drivers. See the FT_Sfnt_Tag */
- /* enumeration in `tttables.h' for a list. */
- /* */
- /* You can load any table with a different function.. XXX */
- /* */
- FT_EXPORT_FUNC( void* ) FT_Get_Sfnt_Table( FT_Face face,
- FT_Sfnt_Tag tag )
- {
- void* table = 0;
- FT_Get_Sfnt_Table_Func func;
- FT_Driver driver;
-
-
- if ( !face || !FT_IS_SFNT( face ) )
- goto Exit;
-
- driver = face->driver;
- func = (FT_Get_Sfnt_Table_Func)driver->root.clazz->get_interface(
- FT_MODULE( driver ), "get_sfnt" );
- if ( func )
- table = func( face, tag );
-
- Exit:
- return table;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** R E N D E R E R S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- /* lookup a renderer by glyph format in the library's list */
- BASE_FUNC( FT_Renderer ) FT_Lookup_Renderer( FT_Library library,
- FT_Glyph_Format format,
- FT_ListNode* node )
- {
- FT_ListNode cur;
- FT_Renderer result = 0;
-
-
- if ( !library )
- goto Exit;
-
- cur = library->renderers.head;
-
- if ( node )
- {
- if ( *node )
- cur = (*node)->next;
- *node = 0;
- }
-
- while ( cur )
- {
- FT_Renderer renderer = FT_RENDERER( cur->data );
-
-
- if ( renderer->glyph_format == format )
- {
- if ( node )
- *node = cur;
-
- result = renderer;
- break;
- }
- cur = cur->next;
- }
-
- Exit:
- return result;
- }
-
-
- static
- FT_Renderer ft_lookup_glyph_renderer( FT_GlyphSlot slot )
- {
- FT_Face face = slot->face;
- FT_Library library = FT_FACE_LIBRARY( face );
- FT_Renderer result = library->cur_renderer;
-
-
- if ( !result || result->glyph_format != slot->format )
- result = FT_Lookup_Renderer( library, slot->format, 0 );
-
- return result;
- }
-
-
- static
- void ft_set_current_renderer( FT_Library library )
- {
- FT_Renderer renderer;
-
-
- renderer = FT_Lookup_Renderer( library, ft_glyph_format_outline, 0 );
- library->cur_renderer = renderer;
- }
-
-
- static
- FT_Error ft_add_renderer( FT_Module module )
- {
- FT_Library library = module->library;
- FT_Memory memory = library->memory;
- FT_Error error;
- FT_ListNode node;
-
-
- if ( ALLOC( node, sizeof ( *node ) ) )
- goto Exit;
-
- {
- FT_Renderer render = FT_RENDERER( module );
- FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz;
-
-
- render->clazz = clazz;
- render->glyph_format = clazz->glyph_format;
-
- /* allocate raster object if needed */
- if ( clazz->glyph_format == ft_glyph_format_outline &&
- clazz->raster_class->raster_new )
- {
- error = clazz->raster_class->raster_new( memory, &render->raster );
- if ( error )
- goto Fail;
-
- render->raster_render = clazz->raster_class->raster_render;
- render->render = clazz->render_glyph;
- }
-
- /* add to list */
- node->data = module;
- FT_List_Add( &library->renderers, node );
-
- ft_set_current_renderer( library );
- }
-
- Fail:
- if ( error )
- FREE( node );
-
- Exit:
- return error;
- }
-
-
- static
- void ft_remove_renderer( FT_Module module )
- {
- FT_Library library = module->library;
- FT_Memory memory = library->memory;
- FT_ListNode node;
-
-
- node = FT_List_Find( &library->renderers, module );
- if ( node )
- {
- FT_Renderer render = FT_RENDERER( module );
-
-
- /* release raster object, if any */
- if ( render->raster )
- render->clazz->raster_class->raster_done( render->raster );
-
- /* remove from list */
- FT_List_Remove( &library->renderers, node );
- FREE( node );
-
- ft_set_current_renderer( library );
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Renderer */
- /* */
- /* <Description> */
- /* Retrieves the current renderer for a given glyph format. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* format :: The glyph format. */
- /* */
- /* <Return> */
- /* A renderer handle. 0 if none found. */
- /* */
- /* <Note> */
- /* An error will be returned if a module already exists by that name, */
- /* or if the module requires a version of FreeType that is too great. */
- /* */
- /* To add a new renderer, simply use FT_Add_Module(). To retrieve a */
- /* renderer by its name, use FT_Get_Module(). */
- /* */
- FT_EXPORT_FUNC( FT_Renderer ) FT_Get_Renderer( FT_Library library,
- FT_Glyph_Format format )
- {
- /* test for valid `library' delayed to FT_Lookup_Renderer() */
-
- return FT_Lookup_Renderer( library, format, 0 );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Renderer */
- /* */
- /* <Description> */
- /* Sets the current renderer to use, and set additional mode. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* renderer :: A handle to the renderer object. */
- /* */
- /* num_params :: The number of additional parameters. */
- /* */
- /* parameters :: Additional parameters. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* In case of success, the renderer will be used to convert glyph */
- /* images in the renderer's known format into bitmaps. */
- /* */
- /* This doesn't change the current renderer for other formats. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_Renderer( FT_Library library,
- FT_Renderer renderer,
- FT_UInt num_params,
- FT_Parameter* parameters )
- {
- FT_ListNode node;
- FT_Error error = FT_Err_Ok;
-
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- if ( !renderer )
- return FT_Err_Invalid_Argument;
-
- node = FT_List_Find( &library->renderers, renderer );
- if ( !node )
- {
- error = FT_Err_Invalid_Argument;
- goto Exit;
- }
-
- FT_List_Up( &library->renderers, node );
-
- if ( renderer->glyph_format == ft_glyph_format_outline )
- library->cur_renderer = renderer;
-
- if ( num_params > 0 )
- {
- FTRenderer_setMode set_mode = renderer->clazz->set_mode;
-
-
- for ( ; num_params > 0; num_params-- )
- {
- error = set_mode( renderer, parameters->tag, parameters->data );
- if ( error )
- break;
- }
- }
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- FT_Error FT_Render_Glyph_Internal( FT_Library library,
- FT_GlyphSlot slot,
- FT_UInt render_mode )
- {
- FT_Error error = FT_Err_Ok;
- FT_Renderer renderer;
-
-
- /* if it is already a bitmap, no need to do anything */
- switch ( slot->format )
- {
- case ft_glyph_format_bitmap: /* already a bitmap, don't do anything */
- break;
-
- default:
- {
- FT_ListNode node = 0;
- FT_Bool update = 0;
-
-
- /* small shortcut for the very common case */
- if ( slot->format == ft_glyph_format_outline )
- {
- renderer = library->cur_renderer;
- node = library->renderers.head;
- }
- else
- renderer = FT_Lookup_Renderer( library, slot->format, &node );
-
- error = FT_Err_Unimplemented_Feature;
- while ( renderer )
- {
- error = renderer->render( renderer, slot, render_mode, 0 );
- if ( !error || error != FT_Err_Cannot_Render_Glyph )
- break;
-
- /* FT_Err_Cannot_Render_Glyph is returned if the render mode */
- /* is unsupported by the current renderer for this glyph image */
- /* format. */
-
- /* now, look for another renderer that supports the same */
- /* format. */
- renderer = FT_Lookup_Renderer( library, slot->format, &node );
- update = 1;
- }
-
- /* if we changed the current renderer for the glyph image format */
- /* we need to select it as the next current one */
- if ( !error && update && renderer )
- FT_Set_Renderer( library, renderer, 0, 0 );
- }
- }
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Render_Glyph */
- /* */
- /* <Description> */
- /* Converts a given glyph image to a bitmap. It does so by */
- /* inspecting the glyph image format, find the relevant renderer, and */
- /* invoke it. */
- /* */
- /* <Input> */
- /* slot :: A handle to the glyph slot containing the image to */
- /* convert. */
- /* */
- /* render_mode :: This is the render mode used to render the glyph */
- /* image into a bitmap. See FT_Render_Mode for a list */
- /* of possible values. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Render_Glyph( FT_GlyphSlot slot,
- FT_UInt render_mode )
- {
- FT_Library library;
-
-
- if ( !slot )
- return FT_Err_Invalid_Argument;
-
- library = FT_FACE_LIBRARY( slot->face );
-
- return FT_Render_Glyph_Internal( library, slot, render_mode );
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** M O D U L E S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* Destroy_Module */
- /* */
- /* <Description> */
- /* Destroys a given module object. For drivers, this also destroys */
- /* all child faces. */
- /* */
- /* <InOut> */
- /* module :: A handle to the target driver object. */
- /* */
- /* <Note> */
- /* The driver _must_ be LOCKED! */
- /* */
- static
- void Destroy_Module( FT_Module module )
- {
- FT_Memory memory = module->memory;
- FT_Module_Class* clazz = module->clazz;
- FT_Library library = module->library;
-
-
- /* finalize client-data - before anything else */
- if ( module->generic.finalizer )
- module->generic.finalizer( module );
-
- if ( library && library->auto_hinter == module )
- library->auto_hinter = 0;
-
- /* if the module is a renderer */
- if ( FT_MODULE_IS_RENDERER( module ) )
- ft_remove_renderer( module );
-
- /* if the module is a font driver, add some steps */
- if ( FT_MODULE_IS_DRIVER( module ) )
- Destroy_Driver( FT_DRIVER( module ) );
-
- /* finalize the module object */
- if ( clazz->module_done )
- clazz->module_done( module );
-
- /* discard it */
- FREE( module );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Module */
- /* */
- /* <Description> */
- /* Adds a new module to a given library instance. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* clazz :: A pointer to class descriptor for the module. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* An error will be returned if a module already exists by that name, */
- /* or if the module requires a version of FreeType that is too great. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Add_Module( FT_Library library,
- const FT_Module_Class* clazz )
- {
- FT_Error error;
- FT_Memory memory;
- FT_Module module;
- FT_UInt nn;
-
-
-#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \
- FREETYPE_MINOR )
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- if ( !clazz )
- return FT_Err_Invalid_Argument;
-
- /* check freetype version */
- if ( clazz->module_requires > FREETYPE_VER_FIXED )
- return FT_Err_Invalid_Version;
-
- /* look for a module with the same name in the library's table */
- for ( nn = 0; nn < library->num_modules; nn++ )
- {
- module = library->modules[nn];
- if ( strcmp( module->clazz->module_name, clazz->module_name ) == 0 )
- {
- /* this installed module has the same name, compare their versions */
- if ( clazz->module_version <= module->clazz->module_version )
- return FT_Err_Lower_Module_Version;
-
- /* remove the module from our list, then exit the loop to replace */
- /* it by our new version.. */
- FT_Remove_Module( library, module );
- break;
- }
- }
-
- memory = library->memory;
- error = FT_Err_Ok;
-
- if ( library->num_modules >= FT_MAX_MODULES )
- {
- error = FT_Err_Too_Many_Drivers;
- goto Exit;
- }
-
- /* allocate module object */
- if ( ALLOC( module,clazz->module_size ) )
- goto Exit;
-
- /* base initialization */
- module->library = library;
- module->memory = memory;
- module->clazz = (FT_Module_Class*)clazz;
-
- /* check whether the module is a renderer - this must be performed */
- /* before the normal module initialization */
- if ( FT_MODULE_IS_RENDERER( module ) )
- {
- /* add to the renderers list */
- error = ft_add_renderer( module );
- if ( error )
- goto Fail;
- }
-
- /* is the module a auto-hinter? */
- if ( FT_MODULE_IS_HINTER( module ) )
- library->auto_hinter = module;
-
- /* if the module is a font driver */
- if ( FT_MODULE_IS_DRIVER( module ) )
- {
- /* allocate glyph loader if needed */
- FT_Driver driver = FT_DRIVER( module );
-
-
- driver->clazz = (FT_Driver_Class*)module->clazz;
- if ( FT_DRIVER_USES_OUTLINES( driver ) )
- {
- error = FT_GlyphLoader_New( memory, &driver->glyph_loader );
- if ( error )
- goto Fail;
- }
- }
-
- if ( clazz->module_init )
- {
- error = clazz->module_init( module );
- if ( error )
- goto Fail;
- }
-
- /* add module to the library's table */
- library->modules[library->num_modules++] = module;
-
- Exit:
- return error;
-
- Fail:
- if ( FT_MODULE_IS_DRIVER( module ) )
- {
- FT_Driver driver = FT_DRIVER( module );
-
-
- if ( FT_DRIVER_USES_OUTLINES( driver ) )
- FT_GlyphLoader_Done( driver->glyph_loader );
- }
-
- if ( FT_MODULE_IS_RENDERER( module ) )
- {
- FT_Renderer renderer = FT_RENDERER( module );
-
-
- if ( renderer->raster )
- renderer->clazz->raster_class->raster_done( renderer->raster );
- }
-
- FREE( module );
- goto Exit;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Module */
- /* */
- /* <Description> */
- /* Finds a module by its name. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* module_name :: The module's name (as an ASCII string). */
- /* */
- /* <Return> */
- /* A module handle. 0 if none was found. */
- /* */
- /* <Note> */
- /* You should better be familiar with FreeType internals to know */
- /* which module to look for :-) */
- /* */
- FT_EXPORT_FUNC( FT_Module ) FT_Get_Module( FT_Library library,
- const char* module_name )
- {
- FT_Module result = 0;
- FT_Module* cur;
- FT_Module* limit;
-
-
- if ( !library || !module_name )
- return result;
-
- cur = library->modules;
- limit = cur + library->num_modules;
-
- for ( ; cur < limit; cur++ )
- if ( strcmp( cur[0]->clazz->module_name, module_name ) == 0 )
- {
- result = cur[0];
- break;
- }
-
- return result;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Module_Interface */
- /* */
- /* <Description> */
- /* Finds a module and returns its specific interface as a typeless */
- /* pointer. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* module_name :: The module's name (as an ASCII string). */
- /* */
- /* <Return> */
- /* A module-specific interface if available, 0 otherwise. */
- /* */
- /* <Note> */
- /* You should better be familiar with FreeType internals to know */
- /* which module to look for, and what its interface is :-) */
- /* */
- BASE_FUNC( const void* ) FT_Get_Module_Interface( FT_Library library,
- const char* mod_name )
- {
- FT_Module module;
-
-
- /* test for valid `library' delayed to FT_Get_Module() */
-
- module = FT_Get_Module( library, mod_name );
-
- return module ? module->clazz->module_interface : 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Remove_Module */
- /* */
- /* <Description> */
- /* Removes a given module from a library instance. */
- /* */
- /* <Input> */
- /* library :: A handle to a library object. */
- /* */
- /* module :: A handle to a module object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The module object is destroyed by the function in case of success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Remove_Module( FT_Library library,
- FT_Module module )
- {
- /* try to find the module from the table, then remove it from there */
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- if ( module )
- {
- FT_Module* cur = library->modules;
- FT_Module* limit = cur + library->num_modules;
-
-
- for ( ; cur < limit; cur++ )
- {
- if ( cur[0] == module )
- {
- /* remove it from the table */
- library->num_modules--;
- limit--;
- while ( cur < limit )
- {
- cur[0] = cur[1];
- cur++;
- }
- limit[0] = 0;
-
- /* destroy the module */
- Destroy_Module( module );
-
- return FT_Err_Ok;
- }
- }
- }
- return FT_Err_Invalid_Driver_Handle;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** L I B R A R Y ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Library */
- /* */
- /* <Description> */
- /* This function is used to create a new FreeType library instance */
- /* from a given memory object. It is thus possible to use libraries */
- /* with distinct memory allocators within the same program. */
- /* */
- /* <Input> */
- /* memory :: A handle to the original memory object. */
- /* */
- /* <Output> */
- /* alibrary :: A pointer to handle of a new library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_Library( FT_Memory memory,
- FT_Library* alibrary )
- {
- FT_Library library = 0;
- FT_Error error;
-
-
- if ( !memory )
- return FT_Err_Invalid_Argument;
-
- /* first of all, allocate the library object */
- if ( ALLOC( library, sizeof ( *library ) ) )
- return error;
-
- library->memory = memory;
-
- /* allocate the render pool */
- library->raster_pool_size = FT_RENDER_POOL_SIZE;
- if ( ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) )
- goto Fail;
-
- /* That's ok now */
- *alibrary = library;
-
- return FT_Err_Ok;
-
- Fail:
- FREE( library );
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Library */
- /* */
- /* <Description> */
- /* Discards a given library object. This closes all drivers and */
- /* discards all resource objects. */
- /* */
- /* <Input> */
- /* library :: A handle to the target library. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Done_Library( FT_Library library )
- {
- FT_Memory memory;
- FT_UInt n;
-
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- memory = library->memory;
-
- /* Discard client-data */
- if ( library->generic.finalizer )
- library->generic.finalizer( library );
-
- /* Close all modules in the library */
- for ( n = 0; n < library->num_modules; n++ )
- {
- FT_Module module = library->modules[n];
-
-
- if ( module )
- {
- Destroy_Module( module );
- library->modules[n] = 0;
- }
- }
-
- /* Destroy raster objects */
- FREE( library->raster_pool );
- library->raster_pool_size = 0;
-
- FREE( library );
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Debug_Hook */
- /* */
- /* <Description> */
- /* Sets a debug hook function for debugging the interpreter of a font */
- /* format. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* hook_index :: The index of the debug hook. You should use the */
- /* values defined in ftobjs.h, e.g. */
- /* FT_DEBUG_HOOK_TRUETYPE */
- /* */
- /* debug_hook :: The function used to debug the interpreter. */
- /* */
- /* <Note> */
- /* Currently, four debug hook slots are available, but only two (for */
- /* the TrueType and the Type 1 interpreter) are defined. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Set_Debug_Hook( FT_Library library,
- FT_UInt hook_index,
- FT_DebugHook_Func debug_hook )
- {
- if ( library && debug_hook &&
- hook_index <
- ( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) )
- library->debug_hooks[hook_index] = debug_hook;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_FreeType */
- /* */
- /* <Description> */
- /* Destroys a given FreeType library object and all of its childs, */
- /* including resources, drivers, faces, sizes, etc. */
- /* */
- /* <Input> */
- /* library :: A handle to the target library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Done_FreeType( FT_Library library )
- {
- /* test for valid `library' delayed to FT_Done_Library() */
-
- /* Discard the library object */
- FT_Done_Library( library );
-
- return FT_Err_Ok;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftoutln.c */
-/* */
-/* FreeType outline management (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* All functions are declared in freetype.h. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/ftoutln.h>
-#include <freetype/internal/ftobjs.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_outline
-
-
- static
- const FT_Outline null_outline = { 0, 0, 0, 0, 0, 0 };
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Decompose */
- /* */
- /* <Description> */
- /* Walks over an outline's structure to decompose it into individual */
- /* segments and Bezier arcs. This function is also able to emit */
- /* `move to' and `close to' operations to indicate the start and end */
- /* of new contours in the outline. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the source target. */
- /* */
- /* interface :: A table of `emitters', i.e,. function pointers called */
- /* during decomposition to indicate path operations. */
- /* */
- /* user :: A typeless pointer which is passed to each emitter */
- /* during the decomposition. It can be used to store */
- /* the state during the decomposition. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means sucess. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Decompose(
- FT_Outline* outline,
- FT_Outline_Funcs* interface,
- void* user )
- {
-#undef SCALED
-#define SCALED( x ) ( ( (x) << shift ) - delta )
-
- FT_Vector v_last;
- FT_Vector v_control;
- FT_Vector v_start;
-
- FT_Vector* point;
- FT_Vector* limit;
- char* tags;
-
- FT_Error error;
-
- FT_Int n; /* index of contour in outline */
- FT_UInt first; /* index of first point in contour */
- char tag; /* current point's state */
-
- FT_Int shift;
- FT_Pos delta;
-
-
- if ( !outline || !interface )
- return FT_Err_Invalid_Argument;
-
- shift = interface->shift;
- delta = interface->delta;
- first = 0;
-
- for ( n = 0; n < outline->n_contours; n++ )
- {
- FT_Int last; /* index of last point in contour */
-
-
- last = outline->contours[n];
- limit = outline->points + last;
-
- v_start = outline->points[first];
- v_last = outline->points[last];
-
- v_start.x = SCALED( v_start.x ); v_start.y = SCALED( v_start.y );
- v_last.x = SCALED( v_last.x ); v_last.y = SCALED( v_last.y );
-
- v_control = v_start;
-
- point = outline->points + first;
- tags = outline->tags + first;
- tag = FT_CURVE_TAG( tags[0] );
-
- /* A contour cannot start with a cubic control point! */
- if ( tag == FT_Curve_Tag_Cubic )
- goto Invalid_Outline;
-
- /* check first point to determine origin */
- if ( tag == FT_Curve_Tag_Conic )
- {
- /* first point is conic control. Yes, this happens. */
- if ( FT_CURVE_TAG( outline->tags[last] ) == FT_Curve_Tag_On )
- {
- /* start at last point if it is on the curve */
- v_start = v_last;
- limit--;
- }
- else
- {
- /* if both first and last points are conic, */
- /* start at their middle and record its position */
- /* for closure */
- v_start.x = ( v_start.x + v_last.x ) / 2;
- v_start.y = ( v_start.y + v_last.y ) / 2;
-
- v_last = v_start;
- }
- point--;
- tags--;
- }
-
- error = interface->move_to( &v_start, user );
- if ( error )
- goto Exit;
-
- while ( point < limit )
- {
- point++;
- tags++;
-
- tag = FT_CURVE_TAG( tags[0] );
- switch ( tag )
- {
- case FT_Curve_Tag_On: /* emit a single line_to */
- {
- FT_Vector vec;
-
-
- vec.x = SCALED( point->x );
- vec.y = SCALED( point->y );
-
- error = interface->line_to( &vec, user );
- if ( error )
- goto Exit;
- continue;
- }
-
- case FT_Curve_Tag_Conic: /* consume conic arcs */
- v_control.x = SCALED( point->x );
- v_control.y = SCALED( point->y );
-
- Do_Conic:
- if ( point < limit )
- {
- FT_Vector vec;
- FT_Vector v_middle;
-
-
- point++;
- tags++;
- tag = FT_CURVE_TAG( tags[0] );
-
- vec.x = SCALED( point->x );
- vec.y = SCALED( point->y );
-
- if ( tag == FT_Curve_Tag_On )
- {
- error = interface->conic_to( &v_control, &vec, user );
- if ( error )
- goto Exit;
- continue;
- }
-
- if ( tag != FT_Curve_Tag_Conic )
- goto Invalid_Outline;
-
- v_middle.x = ( v_control.x + vec.x ) / 2;
- v_middle.y = ( v_control.y + vec.y ) / 2;
-
- error = interface->conic_to( &v_control, &v_middle, user );
- if ( error )
- goto Exit;
-
- v_control = vec;
- goto Do_Conic;
- }
-
- error = interface->conic_to( &v_control, &v_start, user );
- goto Close;
-
- default: /* FT_Curve_Tag_Cubic */
- {
- FT_Vector vec1, vec2;
-
-
- if ( point + 1 > limit ||
- FT_CURVE_TAG( tags[1] ) != FT_Curve_Tag_Cubic )
- goto Invalid_Outline;
-
- point += 2;
- tags += 2;
-
- vec1.x = SCALED( point[-2].x ); vec1.y = SCALED( point[-2].y );
- vec2.x = SCALED( point[-1].x ); vec2.y = SCALED( point[-1].y );
-
- if ( point <= limit )
- {
- FT_Vector vec;
-
-
- vec.x = SCALED( point->x );
- vec.y = SCALED( point->y );
-
- error = interface->cubic_to( &vec1, &vec2, &vec, user );
- if ( error )
- goto Exit;
- continue;
- }
-
- error = interface->cubic_to( &vec1, &vec2, &v_start, user );
- goto Close;
- }
- }
- }
-
- /* close the contour with a line segment */
- error = interface->line_to( &v_start, user );
-
- Close:
- if ( error )
- goto Exit;
-
- first = last + 1;
- }
-
- return 0;
-
- Exit:
- return error;
-
- Invalid_Outline:
- return FT_Err_Invalid_Outline;
- }
-
-
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_New_Internal(
- FT_Memory memory,
- FT_UInt numPoints,
- FT_Int numContours,
- FT_Outline* outline )
- {
- FT_Error error;
-
-
- if ( !outline || !memory )
- return FT_Err_Invalid_Argument;
-
- *outline = null_outline;
-
- if ( ALLOC_ARRAY( outline->points, numPoints * 2L, FT_Pos ) ||
- ALLOC_ARRAY( outline->tags, numPoints, FT_Byte ) ||
- ALLOC_ARRAY( outline->contours, numContours, FT_UShort ) )
- goto Fail;
-
- outline->n_points = (FT_UShort)numPoints;
- outline->n_contours = (FT_Short)numContours;
- outline->flags |= ft_outline_owner;
-
- return FT_Err_Ok;
-
- Fail:
- outline->flags |= ft_outline_owner;
- FT_Outline_Done_Internal( memory, outline );
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_New */
- /* */
- /* <Description> */
- /* Creates a new outline of a given size. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object from where the */
- /* outline is allocated. Note however that the new */
- /* outline will NOT necessarily be FREED, when */
- /* destroying the library, by FT_Done_FreeType(). */
- /* */
- /* numPoints :: The maximal number of points within the outline. */
- /* */
- /* numContours :: The maximal number of contours within the outline. */
- /* */
- /* <Output> */
- /* outline :: A handle to the new outline. NULL in case of */
- /* error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* No. */
- /* */
- /* <Note> */
- /* The reason why this function takes a `library' parameter is simply */
- /* to use the library's memory allocator. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_New( FT_Library library,
- FT_UInt numPoints,
- FT_Int numContours,
- FT_Outline* outline )
- {
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- return FT_Outline_New_Internal( library->memory, numPoints,
- numContours, outline );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Copy */
- /* */
- /* <Description> */
- /* Copies an outline into another one. Both objects must have the */
- /* same sizes (number of points & number of contours) when this */
- /* function is called. */
- /* */
- /* <Input> */
- /* source :: A handle to the source outline. */
- /* */
- /* <Output> */
- /* target :: A handle to the target outline. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Copy( FT_Outline* source,
- FT_Outline* target )
- {
- FT_Int is_owner;
-
-
- if ( !source || !target ||
- source->n_points != target->n_points ||
- source->n_contours != target->n_contours )
- return FT_Err_Invalid_Argument;
-
- MEM_Copy( target->points, source->points,
- source->n_points * sizeof ( FT_Vector ) );
-
- MEM_Copy( target->tags, source->tags,
- source->n_points * sizeof ( FT_Byte ) );
-
- MEM_Copy( target->contours, source->contours,
- source->n_contours * sizeof ( FT_Short ) );
-
- /* copy all flags, except the `ft_outline_owner' one */
- is_owner = target->flags & ft_outline_owner;
- target->flags = source->flags;
-
- target->flags &= ~ft_outline_owner;
- target->flags |= is_owner;
-
- return FT_Err_Ok;
- }
-
-
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Done_Internal( FT_Memory memory,
- FT_Outline* outline )
- {
- if ( outline )
- {
- if ( outline->flags & ft_outline_owner )
- {
- FREE( outline->points );
- FREE( outline->tags );
- FREE( outline->contours );
- }
- *outline = null_outline;
-
- return FT_Err_Ok;
- }
- else
- return FT_Err_Invalid_Argument;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Done */
- /* */
- /* <Description> */
- /* Destroys an outline created with FT_Outline_New(). */
- /* */
- /* <Input> */
- /* library :: A handle of the library object used to allocate the */
- /* outline. */
- /* */
- /* outline :: A pointer to the outline object to be discarded. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* No. */
- /* */
- /* <Note> */
- /* If the outline's `owner' field is not set, only the outline */
- /* descriptor will be released. */
- /* */
- /* The reason why this function takes an `outline' parameter is */
- /* simply to use FT_Free(). */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Done( FT_Library library,
- FT_Outline* outline )
- {
- /* check for valid `outline' in FT_Outline_Done_Internal() */
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- return FT_Outline_Done_Internal( library->memory, outline );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Get_CBox */
- /* */
- /* <Description> */
- /* Returns an outline's `control box'. The control box encloses all */
- /* the outline's points, including Bezier control points. Though it */
- /* coincides with the exact bounding box for most glyphs, it can be */
- /* slightly larger in some situations (like when rotating an outline */
- /* which contains Bezier outside arcs). */
- /* */
- /* Computing the control box is very fast, while getting the bounding */
- /* box can take much more time as it needs to walk over all segments */
- /* and arcs in the outline. To get the latter, you can use the */
- /* `ftbbox' component which is dedicated to this single task. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* <Output> */
- /* cbox :: The outline's control box. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Outline_Get_CBox( FT_Outline* outline,
- FT_BBox* cbox )
- {
- FT_Pos xMin, yMin, xMax, yMax;
-
-
- if ( outline && cbox )
- {
- if ( outline->n_points == 0 )
- {
- xMin = 0;
- yMin = 0;
- xMax = 0;
- yMax = 0;
- }
- else
- {
- FT_Vector* vec = outline->points;
- FT_Vector* limit = vec + outline->n_points;
-
-
- xMin = xMax = vec->x;
- yMin = yMax = vec->y;
- vec++;
-
- for ( ; vec < limit; vec++ )
- {
- FT_Pos x, y;
-
-
- x = vec->x;
- if ( x < xMin ) xMin = x;
- if ( x > xMax ) xMax = x;
-
- y = vec->y;
- if ( y < yMin ) yMin = y;
- if ( y > yMax ) yMax = y;
- }
- }
- cbox->xMin = xMin;
- cbox->xMax = xMax;
- cbox->yMin = yMin;
- cbox->yMax = yMax;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Translate */
- /* */
- /* <Description> */
- /* Applies a simple translation to the points of an outline. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the target outline descriptor. */
- /* */
- /* xOffset :: The horizontal offset. */
- /* */
- /* yOffset :: The vertical offset. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Outline_Translate( FT_Outline* outline,
- FT_Pos xOffset,
- FT_Pos yOffset )
- {
- FT_UShort n;
- FT_Vector* vec = outline->points;
-
-
- for ( n = 0; n < outline->n_points; n++ )
- {
- vec->x += xOffset;
- vec->y += yOffset;
- vec++;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Reverse */
- /* */
- /* <Description> */
- /* Reverses the drawing direction of an outline. This is used to */
- /* ensure consistent fill conventions for mirrored glyphs. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the target outline descriptor. */
- /* */
- /* <Note> */
- /* This functions toggles the bit flag `ft_outline_reverse_fill' in */
- /* the outline's `flags' field. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Outline_Reverse( FT_Outline* outline )
- {
- FT_UShort n;
- FT_Int first, last;
-
-
- first = 0;
-
- for ( n = 0; n < outline->n_contours; n++ )
- {
- last = outline->contours[n];
-
- /* reverse point table */
- {
- FT_Vector* p = outline->points + first;
- FT_Vector* q = outline->points + last;
- FT_Vector swap;
-
-
- while ( p < q )
- {
- swap = *p;
- *p = *q;
- *q = swap;
- p++;
- q--;
- }
- }
-
- /* reverse tags table */
- {
- char* p = outline->tags + first;
- char* q = outline->tags + last;
- char swap;
-
-
- while ( p < q )
- {
- swap = *p;
- *p = *q;
- *q = swap;
- p++;
- q--;
- }
- }
-
- first = last + 1;
- }
-
- outline->flags ^= ft_outline_reverse_fill;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Render */
- /* */
- /* <Description> */
- /* Renders an outline within a bitmap using the current scan-convert. */
- /* This functions uses an FT_Raster_Params structure as an argument, */
- /* allowing advanced features like direct composition, translucency, */
- /* etc. */
- /* */
- /* <Input> */
- /* library :: A handle to a FreeType library object. */
- /* */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* params :: A pointer to a FT_Raster_Params structure used to */
- /* describe the rendering operation. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* YES. Rendering is synchronized, so that concurrent calls to the */
- /* scan-line converter will be serialized. */
- /* */
- /* <Note> */
- /* You should know what you are doing and how FT_Raster_Params works */
- /* to use this function. */
- /* */
- /* The field `params.source' will be set to `outline' before the scan */
- /* converter is called, which means that the value you give to it is */
- /* actually ignored. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Render( FT_Library library,
- FT_Outline* outline,
- FT_Raster_Params* params )
- {
- FT_Error error;
- FT_Bool update = 0;
- FT_Renderer renderer;
- FT_ListNode node;
-
-
- if ( !library )
- return FT_Err_Invalid_Library_Handle;
-
- if ( !params )
- return FT_Err_Invalid_Argument;
-
- renderer = library->cur_renderer;
- node = library->renderers.head;
-
- params->source = (void*)outline;
-
- error = FT_Err_Cannot_Render_Glyph;
- while ( renderer )
- {
- error = renderer->raster_render( renderer->raster, params );
- if ( !error || error != FT_Err_Cannot_Render_Glyph )
- break;
-
- /* FT_Err_Cannot_Render_Glyph is returned if the render mode */
- /* is unsupported by the current renderer for this glyph image */
- /* format */
-
- /* now, look for another renderer that supports the same */
- /* format */
- renderer = FT_Lookup_Renderer( library, ft_glyph_format_outline,
- &node );
- update = 1;
- }
-
- /* if we changed the current renderer for the glyph image format */
- /* we need to select it as the next current one */
- if ( !error && update && renderer )
- FT_Set_Renderer( library, renderer, 0, 0 );
-
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Get_Bitmap */
- /* */
- /* <Description> */
- /* Renders an outline within a bitmap. The outline's image is simply */
- /* OR-ed to the target bitmap. */
- /* */
- /* <Input> */
- /* library :: A handle to a FreeType library object. */
- /* */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* map :: A pointer to the target bitmap descriptor. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* YES. Rendering is synchronized, so that concurrent calls to the */
- /* scan-line converter will be serialized. */
- /* */
- /* <Note> */
- /* This function does NOT CREATE the bitmap, it only renders an */
- /* outline image within the one you pass to it! */
- /* */
- /* It will use the raster correponding to the default glyph format. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_Outline_Get_Bitmap( FT_Library library,
- FT_Outline* outline,
- FT_Bitmap* bitmap )
- {
- FT_Raster_Params params;
-
-
- if ( !bitmap )
- return FT_Err_Invalid_Argument;
-
- /* other checks are delayed to FT_Outline_Render() */
-
- params.target = bitmap;
- params.flags = 0;
-
- if ( bitmap->pixel_mode == ft_pixel_mode_grays )
- params.flags |= ft_raster_flag_aa;
-
- return FT_Outline_Render( library, outline, ¶ms );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Vector_Transform */
- /* */
- /* <Description> */
- /* Transforms a single vector through a 2x2 matrix. */
- /* */
- /* <InOut> */
- /* vector :: The target vector to transform. */
- /* */
- /* <Input> */
- /* matrix :: A pointer to the source 2x2 matrix. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* The result is undefined if either `vector' or `matrix' is invalid. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Vector_Transform( FT_Vector* vector,
- FT_Matrix* matrix )
- {
- FT_Pos xz, yz;
-
-
- if ( !vector || !matrix )
- return;
-
- xz = FT_MulFix( vector->x, matrix->xx ) +
- FT_MulFix( vector->y, matrix->xy );
-
- yz = FT_MulFix( vector->x, matrix->yx ) +
- FT_MulFix( vector->y, matrix->yy );
-
- vector->x = xz;
- vector->y = yz;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Transform */
- /* */
- /* <Description> */
- /* Applies a simple 2x2 matrix to all of an outline's points. Useful */
- /* for applying rotations, slanting, flipping, etc. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the target outline descriptor. */
- /* */
- /* matrix :: A pointer to the transformation matrix. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* You can use FT_Outline_Translate() if you need to translate the */
- /* outline's points. */
- /* */
- FT_EXPORT_FUNC( void ) FT_Outline_Transform( FT_Outline* outline,
- FT_Matrix* matrix )
- {
- FT_Vector* vec = outline->points;
- FT_Vector* limit = vec + outline->n_points;
-
-
- for ( ; vec < limit; vec++ )
- FT_Vector_Transform( vec, matrix );
- }
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftstream.c */
-/* */
-/* I/O stream support (body). */
-/* */
-/* Copyright 2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/ftdebug.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_stream
-
-
- BASE_FUNC( void ) FT_New_Memory_Stream( FT_Library library,
- FT_Byte* base,
- FT_ULong size,
- FT_Stream stream )
- {
- stream->memory = library->memory;
- stream->base = base;
- stream->size = size;
- stream->pos = 0;
- stream->cursor = 0;
- stream->read = 0;
- stream->close = 0;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Seek_Stream( FT_Stream stream,
- FT_ULong pos )
- {
- FT_Error error;
-
-
- stream->pos = pos;
-
- if ( stream->read )
- {
- if ( stream->read( stream, pos, 0, 0 ) )
- {
- FT_ERROR(( "FT_Seek_Stream:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- pos, stream->size ));
-
- error = FT_Err_Invalid_Stream_Operation;
- }
- else
- error = FT_Err_Ok;
- }
- /* note that seeking to the first position after the file is valid */
- else if ( pos > stream->size )
- {
- FT_ERROR(( "FT_Seek_Stream:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- pos, stream->size ));
-
- error = FT_Err_Invalid_Stream_Operation;
- }
-
- else
- error = FT_Err_Ok;
-
- return error;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Skip_Stream( FT_Stream stream,
- FT_Long distance )
- {
- return FT_Seek_Stream( stream, (FT_ULong)( stream->pos + distance ) );
- }
-
-
- BASE_FUNC( FT_Long ) FT_Stream_Pos( FT_Stream stream )
- {
- return stream->pos;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Read_Stream( FT_Stream stream,
- FT_Byte* buffer,
- FT_ULong count )
- {
- return FT_Read_Stream_At( stream, stream->pos, buffer, count );
- }
-
-
- BASE_FUNC( FT_Error ) FT_Read_Stream_At( FT_Stream stream,
- FT_ULong pos,
- FT_Byte* buffer,
- FT_ULong count )
- {
- FT_Error error = FT_Err_Ok;
- FT_ULong read_bytes;
-
-
- if ( pos >= stream->size )
- {
- FT_ERROR(( "FT_Read_Stream_At:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- pos, stream->size ));
-
- return FT_Err_Invalid_Stream_Operation;
- }
-
- if ( stream->read )
- read_bytes = stream->read( stream, pos, buffer, count );
- else
- {
- read_bytes = stream->size - pos;
- if ( read_bytes > count )
- read_bytes = count;
-
- MEM_Copy( buffer, stream->base + pos, read_bytes );
- }
-
- stream->pos = pos + read_bytes;
-
- if ( read_bytes < count )
- {
- FT_ERROR(( "FT_Read_Stream_At:" ));
- FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n",
- count, read_bytes ));
-
- error = FT_Err_Invalid_Stream_Operation;
- }
-
- return error;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Extract_Frame( FT_Stream stream,
- FT_ULong count,
- FT_Byte** pbytes )
- {
- FT_Error error;
-
-
- error = FT_Access_Frame( stream, count );
- if ( !error )
- {
- *pbytes = (FT_Byte*)stream->cursor;
-
- /* equivalent to FT_Forget_Frame(), with no memory block release */
- stream->cursor = 0;
- stream->limit = 0;
- }
-
- return error;
- }
-
-
- BASE_FUNC( void ) FT_Release_Frame( FT_Stream stream,
- FT_Byte** pbytes )
- {
- if ( stream->read )
- {
- FT_Memory memory = stream->memory;
-
-
- FREE( *pbytes );
- }
- *pbytes = 0;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Access_Frame( FT_Stream stream,
- FT_ULong count )
- {
- FT_Error error = FT_Err_Ok;
- FT_ULong read_bytes;
-
-
- /* check for nested frame access */
- FT_Assert( stream && stream->cursor == 0 );
-
- if ( stream->read )
- {
- /* allocate the frame in memory */
- FT_Memory memory = stream->memory;
-
-
- if ( ALLOC( stream->base, count ) )
- goto Exit;
-
- /* read it */
- read_bytes = stream->read( stream, stream->pos,
- stream->base, count );
- if ( read_bytes < count )
- {
- FT_ERROR(( "FT_Access_Frame:" ));
- FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n",
- count, read_bytes ));
-
- FREE( stream->base );
- error = FT_Err_Invalid_Stream_Operation;
- }
- stream->cursor = stream->base;
- stream->limit = stream->cursor + count;
- stream->pos += read_bytes;
- }
- else
- {
- /* check current and new position */
- if ( stream->pos >= stream->size ||
- stream->pos + count > stream->size )
- {
- FT_ERROR(( "FT_Access_Frame:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n",
- stream->pos, count, stream->size ));
-
- error = FT_Err_Invalid_Stream_Operation;
- goto Exit;
- }
-
- /* set cursor */
- stream->cursor = stream->base + stream->pos;
- stream->limit = stream->cursor + count;
- stream->pos += count;
- }
-
- Exit:
- return error;
- }
-
-
- BASE_FUNC( void ) FT_Forget_Frame( FT_Stream stream )
- {
- /* IMPORTANT: The assertion stream->cursor != 0 was removed, given */
- /* that it is possible to access a frame of length 0 in */
- /* some weird fonts (usually, when accessing an array of */
- /* 0 records, like in some strange kern tables). */
- /* */
- /* In this case, the loader code handles the 0-length table */
- /* gracefully; however, stream.cursor is really set to 0 by the */
- /* FT_Access_Frame() call, and this is not an error. */
- /* */
- FT_Assert( stream );
-
- if ( stream->read )
- {
- FT_Memory memory = stream->memory;
-
-
- FREE( stream->base );
- }
- stream->cursor = 0;
- stream->limit = 0;
- }
-
-
- BASE_FUNC( FT_Char ) FT_Get_Char( FT_Stream stream )
- {
- FT_Char result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- if ( stream->cursor < stream->limit )
- result = *stream->cursor++;
-
- return result;
- }
-
-
- BASE_FUNC( FT_Short ) FT_Get_Short( FT_Stream stream )
- {
- FT_Byte* p;
- FT_Short result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- p = stream->cursor;
- if ( p + 1 < stream->limit )
- result = NEXT_Short( p );
- stream->cursor = p;
-
- return result;
- }
-
-
- BASE_FUNC( FT_Short ) FT_Get_ShortLE( FT_Stream stream )
- {
- FT_Byte* p;
- FT_Short result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- p = stream->cursor;
- if ( p + 1 < stream->limit )
- result = NEXT_ShortLE( p );
- stream->cursor = p;
-
- return result;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Get_Offset( FT_Stream stream )
- {
- FT_Byte* p;
- FT_Long result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- p = stream->cursor;
- if ( p + 2 < stream->limit )
- result = NEXT_Offset( p );
- stream->cursor = p;
- return result;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Get_Long( FT_Stream stream )
- {
- FT_Byte* p;
- FT_Long result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- p = stream->cursor;
- if ( p + 3 < stream->limit )
- result = NEXT_Long( p );
- stream->cursor = p;
- return result;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Get_LongLE( FT_Stream stream )
- {
- FT_Byte* p;
- FT_Long result;
-
-
- FT_Assert( stream && stream->cursor );
-
- result = 0;
- p = stream->cursor;
- if ( p + 3 < stream->limit )
- result = NEXT_LongLE( p );
- stream->cursor = p;
- return result;
- }
-
-
- BASE_FUNC( FT_Char ) FT_Read_Char( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->read )
- {
- if ( stream->read( stream, stream->pos, &result, 1L ) != 1L )
- goto Fail;
- }
- else
- {
- if ( stream->pos < stream->size )
- result = stream->base[stream->pos];
- else
- goto Fail;
- }
- stream->pos++;
-
- return result;
-
- Fail:
- *error = FT_Err_Invalid_Stream_Operation;
- FT_ERROR(( "FT_Read_Char:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Short ) FT_Read_Short( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte reads[2];
- FT_Byte* p = 0;
- FT_Short result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->pos + 1 < stream->size )
- {
- if ( stream->read )
- {
- if ( stream->read( stream, stream->pos, reads, 2L ) != 2L )
- goto Fail;
-
- p = reads;
- }
- else
- {
- p = stream->base + stream->pos;
- }
-
- if ( p )
- result = NEXT_Short( p );
- }
- else
- goto Fail;
-
- stream->pos += 2;
-
- return result;
-
- Fail:
- *error = FT_Err_Invalid_Stream_Operation;
- FT_ERROR(( "FT_Read_Short:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Short ) FT_Read_ShortLE( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte reads[2];
- FT_Byte* p = 0;
- FT_Short result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->pos + 1 < stream->size )
- {
- if ( stream->read )
- {
- if ( stream->read( stream, stream->pos, reads, 2L ) != 2L )
- goto Fail;
-
- p = reads;
- }
- else
- {
- p = stream->base + stream->pos;
- }
-
- if ( p )
- result = NEXT_ShortLE( p );
- }
- else
- goto Fail;
-
- stream->pos += 2;
-
- return result;
-
- Fail:
- *error = FT_Err_Invalid_Stream_Operation;
- FT_ERROR(( "FT_Read_Short:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Read_Offset( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte reads[3];
- FT_Byte* p = 0;
- FT_Long result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->pos + 2 < stream->size )
- {
- if ( stream->read )
- {
- if (stream->read( stream, stream->pos, reads, 3L ) != 3L )
- goto Fail;
-
- p = reads;
- }
- else
- {
- p = stream->base + stream->pos;
- }
-
- if ( p )
- result = NEXT_Offset( p );
- }
- else
- goto Fail;
-
- stream->pos += 3;
-
- return result;
-
- Fail:
- *error = FT_Err_Invalid_Stream_Operation;
- FT_ERROR(( "FT_Read_Offset:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Read_Long( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte reads[4];
- FT_Byte* p = 0;
- FT_Long result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->pos + 3 < stream->size )
- {
- if ( stream->read )
- {
- if ( stream->read( stream, stream->pos, reads, 4L ) != 4L )
- goto Fail;
-
- p = reads;
- }
- else
- {
- p = stream->base + stream->pos;
- }
-
- if ( p )
- result = NEXT_Long( p );
- }
- else
- goto Fail;
-
- stream->pos += 4;
-
- return result;
-
- Fail:
- FT_ERROR(( "FT_Read_Long:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
- *error = FT_Err_Invalid_Stream_Operation;
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Long ) FT_Read_LongLE( FT_Stream stream,
- FT_Error* error )
- {
- FT_Byte reads[4];
- FT_Byte* p = 0;
- FT_Long result = 0;
-
-
- FT_Assert( stream );
-
- *error = FT_Err_Ok;
-
- if ( stream->pos + 3 < stream->size )
- {
- if ( stream->read )
- {
- if ( stream->read( stream, stream->pos, reads, 4L ) != 4L )
- goto Fail;
-
- p = reads;
- }
- else
- {
- p = stream->base + stream->pos;
- }
-
- if ( p )
- result = NEXT_LongLE( p );
- }
- else
- goto Fail;
-
- stream->pos += 4;
-
- return result;
-
- Fail:
- FT_ERROR(( "FT_Read_Long:" ));
- FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n",
- stream->pos, stream->size ));
- *error = FT_Err_Invalid_Stream_Operation;
-
- return 0;
- }
-
-
- BASE_FUNC( FT_Error ) FT_Read_Fields( FT_Stream stream,
- const FT_Frame_Field* fields,
- void* structure )
- {
- FT_Error error;
- FT_Bool frame_accessed = 0;
-
-
- if ( !fields || !stream )
- return FT_Err_Invalid_Argument;
-
- error = FT_Err_Ok;
- do
- {
- FT_ULong value;
- FT_Int sign_shift;
- FT_Byte* p;
-
-
- switch ( fields->value )
- {
- case ft_frame_start: /* access a new frame */
- error = FT_Access_Frame( stream, fields->offset );
- if ( error )
- goto Exit;
-
- frame_accessed = 1;
- fields++;
- continue; /* loop! */
-
- case ft_frame_bytes: /* read a byte sequence */
- case ft_frame_skip: /* skip some bytes */
- {
- FT_Int len = fields->size;
-
-
- if ( stream->cursor + len > stream->limit )
- {
- error = FT_Err_Invalid_Stream_Operation;
- goto Exit;
- }
-
- if ( fields->value == ft_frame_bytes )
- {
- p = (FT_Byte*)structure + fields->offset;
- MEM_Copy( p, stream->cursor, len );
- }
- stream->cursor += len;
- fields++;
- continue;
- }
-
- case ft_frame_byte:
- case ft_frame_schar: /* read a single byte */
- value = GET_Byte();
- sign_shift = 24;
- break;
-
- case ft_frame_short_be:
- case ft_frame_ushort_be: /* read a 2-byte big-endian short */
- value = GET_UShort();
- sign_shift = 16;
- break;
-
- case ft_frame_short_le:
- case ft_frame_ushort_le: /* read a 2-byte little-endian short */
- {
- FT_Byte* p;
-
-
- value = 0;
- p = stream->cursor;
-
- if ( p + 1 < stream->limit )
- {
- value = ( FT_UShort)p[0] | ((FT_UShort)p[1] << 8 );
- stream->cursor += 2;
- }
- sign_shift = 16;
- break;
- }
-
- case ft_frame_long_be:
- case ft_frame_ulong_be: /* read a 4-byte big-endian long */
- value = GET_ULong();
- sign_shift = 0;
- break;
-
- case ft_frame_long_le:
- case ft_frame_ulong_le: /* read a 4-byte little-endian long */
- {
- FT_Byte* p;
-
-
- value = 0;
- p = stream->cursor;
-
- if ( p + 3 < stream->limit )
- {
- value = (FT_ULong)p[0] |
- ( (FT_ULong)p[1] << 8 ) |
- ( (FT_ULong)p[2] << 16 ) |
- ( (FT_ULong)p[3] << 24 );
- stream->cursor += 4;
- }
- sign_shift = 0;
- break;
- }
-
- case ft_frame_off3_be:
- case ft_frame_uoff3_be: /* read a 3-byte big-endian long */
- value = GET_UOffset();
- sign_shift = 8;
- break;
-
- case ft_frame_off3_le:
- case ft_frame_uoff3_le: /* read a 3-byte little-endian long */
- {
- FT_Byte* p;
-
-
- value = 0;
- p = stream->cursor;
-
- if ( p + 2 < stream->limit )
- {
- value = (FT_ULong)p[0] |
- ( (FT_ULong)p[1] << 8 ) |
- ( (FT_ULong)p[2] << 16 );
- stream->cursor += 3;
- }
- sign_shift = 8;
- break;
- }
-
- default:
- /* otherwise, exit the loop */
- goto Exit;
- }
-
- /* now, compute the signed value is necessary */
- if ( fields->value & FT_FRAME_OP_SIGNED )
- value = (FT_ULong)( (FT_Int32)( value << sign_shift ) >> sign_shift );
-
- /* finally, store the value in the object */
-
- p = (FT_Byte*)structure + fields->offset;
- switch ( fields->size )
- {
- case 1:
- *(FT_Byte*)p = (FT_Byte)value;
- break;
-
- case 2:
- *(FT_UShort*)p = (FT_UShort)value;
- break;
-
- case 4:
- *(FT_UInt32*)p = (FT_UInt32)value;
- break;
-
- default: /* for 64-bit systems */
- *(FT_ULong*)p = (FT_ULong)value;
- }
-
- /* go to next field */
- fields++;
- }
- while ( 1 );
-
- Exit:
- /* close the frame if it was opened by this read */
- if ( frame_accessed )
- FT_Forget_Frame( stream );
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftsystem.c */
-/* */
-/* ANSI-specific FreeType low-level system interface (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* This file contains the default interface used by FreeType to access */
- /* low-level, i.e. memory management, i/o access as well as thread */
- /* synchronisation. It can be replaced by user-specific routines if */
- /* necessary. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/config/ftconfig.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/ftsystem.h>
-#include <freetype/fterrors.h>
-#include <freetype/fttypes.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
- /*************************************************************************/
- /* */
- /* MEMORY MANAGEMENT INTERFACE */
- /* */
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* It is not necessary to do any error checking for the */
- /* allocation-related functions. This will be done by the higher level */
- /* routines like FT_Alloc() or FT_Realloc(). */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_alloc */
- /* */
- /* <Description> */
- /* The memory allocation function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* size :: The requested size in bytes. */
- /* */
- /* <Return> */
- /* block :: The address of newly allocated block. */
- /* */
- static
- void* ft_alloc( FT_Memory memory,
- long size )
- {
- FT_UNUSED( memory );
-
- return malloc( size );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_realloc */
- /* */
- /* <Description> */
- /* The memory reallocation function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* cur_size :: The current size of the allocated memory block. */
- /* */
- /* new_size :: The newly requested size in bytes. */
- /* */
- /* block :: The current address of the block in memory. */
- /* */
- /* <Return> */
- /* The address of the reallocated memory block. */
- /* */
- static
- void* ft_realloc( FT_Memory memory,
- long cur_size,
- long new_size,
- void* block )
- {
- FT_UNUSED( memory );
- FT_UNUSED( cur_size );
-
- return realloc( block, new_size );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_free */
- /* */
- /* <Description> */
- /* The memory release function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* block :: The address of block in memory to be freed. */
- /* */
- static
- void ft_free( FT_Memory memory,
- void* block )
- {
- FT_UNUSED( memory );
-
- free( block );
- }
-
-
- /*************************************************************************/
- /* */
- /* RESOURCE MANAGEMENT INTERFACE */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_io
-
- /* We use the macro STREAM_FILE for convenience to extract the */
- /* system-specific stream handle from a given FreeType stream object */
-#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_close_stream */
- /* */
- /* <Description> */
- /* The function to close a stream. */
- /* */
- /* <Input> */
- /* stream :: A pointer to the stream object. */
- /* */
- static
- void ft_close_stream( FT_Stream stream )
- {
- fclose( STREAM_FILE( stream ) );
-
- stream->descriptor.pointer = NULL;
- stream->size = 0;
- stream->base = 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_io_stream */
- /* */
- /* <Description> */
- /* The function to open a stream. */
- /* */
- /* <Input> */
- /* stream :: A pointer to the stream object. */
- /* */
- /* offset :: The position in the data stream to start reading. */
- /* */
- /* buffer :: The address of buffer to store the read data. */
- /* */
- /* count :: The number of bytes to read from the stream. */
- /* */
- /* <Return> */
- /* The number of bytes actually read. */
- /* */
- static
- unsigned long ft_io_stream( FT_Stream stream,
- unsigned long offset,
- unsigned char* buffer,
- unsigned long count )
- {
- FILE* file;
-
-
- file = STREAM_FILE( stream );
-
- fseek( file, offset, SEEK_SET );
-
- return (unsigned long)fread( buffer, 1, count, file );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Stream */
- /* */
- /* <Description> */
- /* Creates a new stream object. */
- /* */
- /* <Input> */
- /* filepathname :: The name of the stream (usually a file) to be */
- /* opened. */
- /* */
- /* stream :: A pointer to the stream object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_FUNC( FT_Error ) FT_New_Stream( const char* filepathname,
- FT_Stream stream )
- {
- FILE* file;
-
-
- if ( !stream )
- return FT_Err_Invalid_Stream_Handle;
-
- file = fopen( filepathname, "rb" );
- if ( !file )
- {
- FT_ERROR(( "FT_New_Stream:" ));
- FT_ERROR(( " could not open `%s'\n", filepathname ));
-
- return FT_Err_Cannot_Open_Resource;
- }
-
- fseek( file, 0, SEEK_END );
- stream->size = ftell( file );
- fseek( file, 0, SEEK_SET );
-
- stream->descriptor.pointer = file;
- stream->pathname.pointer = (char*)filepathname;
- stream->pos = 0;
-
- stream->read = ft_io_stream;
- stream->close = ft_close_stream;
-
- FT_TRACE1(( "FT_New_Stream:" ));
- FT_TRACE1(( " opened `%s' (%d bytes) successfully\n",
- filepathname, stream->size ));
-
- return FT_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Memory */
- /* */
- /* <Description> */
- /* Creates a new memory object. */
- /* */
- /* <Return> */
- /* A pointer to the new memory object. 0 in case of error. */
- /* */
- FT_EXPORT_FUNC( FT_Memory ) FT_New_Memory( void )
- {
- FT_Memory memory;
-
-
- memory = (FT_Memory)malloc( sizeof ( *memory ) );
- if ( memory )
- {
- memory->user = 0;
- memory->alloc = ft_alloc;
- memory->realloc = ft_realloc;
- memory->free = ft_free;
- }
-
- return memory;
- }
-
-
-/* END */
+++ /dev/null
-#
-# FreeType 2 base layer configuration rules
-#
-
-
-# Copyright 1996-2000 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# It sets the following variables which are used by the master Makefile
-# after the call:
-#
-# BASE_OBJ_S: The single-object base layer.
-# BASE_OBJ_M: A list of all objects for a multiple-objects build.
-# BASE_EXT_OBJ: A list of base layer extensions, i.e., components found
-# in `freetype/src/base' which are not compiled within the
-# base layer proper.
-#
-# BASE_H is defined in freetype.mk to simplify the dependency rules.
-
-
-BASE_COMPILE := $(FT_COMPILE) $I$(SRC_)base
-
-
-# Base layer sources
-#
-# ftsystem, ftinit, and ftdebug are handled by freetype.mk
-#
-BASE_SRC := $(BASE_)ftcalc.c \
- $(BASE_)ftextend.c \
- $(BASE_)ftlist.c \
- $(BASE_)ftobjs.c \
- $(BASE_)ftstream.c \
- $(BASE_)ftoutln.c
-
-# Base layer `extensions' sources
-#
-# An extension is added to the library file (.a or .lib) as a separate
-# object. It will then be linked to the final executable only if one of its
-# symbols is used by the application.
-#
-BASE_EXT_SRC := $(BASE_)ftglyph.c \
- $(BASE_)ftmm.c
-
-# Default extensions objects
-#
-BASE_EXT_OBJ := $(BASE_EXT_SRC:$(BASE_)%.c=$(OBJ_)%.$O)
-
-
-# Base layer object(s)
-#
-# BASE_OBJ_M is used during `multi' builds (each base source file compiles
-# to a single object file).
-#
-# BASE_OBJ_S is used during `single' builds (the whole base layer is
-# compiled as a single object file using ftbase.c).
-#
-BASE_OBJ_M := $(BASE_SRC:$(BASE_)%.c=$(OBJ_)%.$O)
-BASE_OBJ_S := $(OBJ_)ftbase.$O
-
-# Base layer root source file for single build
-#
-BASE_SRC_S := $(BASE_)ftbase.c
-
-
-# Base layer - single object build
-#
-$(BASE_OBJ_S): $(BASE_SRC_S) $(BASE_SRC) $(FREETYPE_H)
- $(BASE_COMPILE) $T$@ $(BASE_SRC_S)
-
-
-# Multiple objects build + extensions
-#
-$(OBJ_)%.$O: $(BASE_)%.c $(FREETYPE_H)
- $(BASE_COMPILE) $T$@ $<
-
-# EOF
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cff.c */
-/* */
-/* FreeType OpenType driver component (body only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#define FT_MAKE_OPTION_SINGLE_OBJECT
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2driver.c" /* driver interface */
-#include "t2parse.c" /* token parser */
-#include "t2load.c" /* tables loader */
-#include "t2objs.c" /* object management */
-#include "t2gload.c" /* glyph loader */
-
-#else
-
-#include <cff/t2driver.c> /* driver interface */
-#include <cff/t2parse.c> /* token parser */
-#include <cff/t2load.c> /* tables loader */
-#include <cff/t2objs.c> /* object management */
-#include <cff/t2gload.c> /* glyph loader */
-
-#endif
-
-
-/* END */
+++ /dev/null
-make_module_list: add_cff_driver
-
-add_cff_driver:
- $(OPEN_DRIVER)cff_driver_class$(CLOSE_DRIVER)
- $(ECHO_DRIVER)cff $(ECHO_DRIVER_DESC)OpenType fonts with extension *.otf$(ECHO_DRIVER_DONE)
-
-# EOF
+++ /dev/null
-#
-# FreeType 2 OpenType/CFF driver configuration rules
-#
-
-
-# Copyright 1996-2000 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# OpenType driver directory
-#
-T2_DIR := $(SRC_)cff
-T2_DIR_ := $(T2_DIR)$(SEP)
-
-
-T2_COMPILE := $(FT_COMPILE)
-
-
-# T2 driver sources (i.e., C files)
-#
-T2_DRV_SRC := $(T2_DIR_)t2objs.c \
- $(T2_DIR_)t2load.c \
- $(T2_DIR_)t2gload.c \
- $(T2_DIR_)t2parse.c \
- $(T2_DIR_)t2driver.c
-
-# T2 driver headers
-#
-T2_DRV_H := $(T2_DRV_SRC:%.c=%.h) \
- $(T2_DIR_)t2tokens.h
-
-
-# T2 driver object(s)
-#
-# T2_DRV_OBJ_M is used during `multi' builds
-# T2_DRV_OBJ_S is used during `single' builds
-#
-T2_DRV_OBJ_M := $(T2_DRV_SRC:$(T2_DIR_)%.c=$(OBJ_)%.$O)
-T2_DRV_OBJ_S := $(OBJ_)cff.$O
-
-# T2 driver source file for single build
-#
-T2_DRV_SRC_S := $(T2_DIR_)cff.c
-
-
-# T2 driver - single object
-#
-$(T2_DRV_OBJ_S): $(T2_DRV_SRC_S) $(T2_DRV_SRC) $(FREETYPE_H) $(T2_DRV_H)
- $(T2_COMPILE) $T$@ $(T2_DRV_SRC_S)
-
-
-# T2 driver - multiple objects
-#
-$(OBJ_)%.$O: $(T2_DIR_)%.c $(FREETYPE_H) $(T2_DRV_H)
- $(T2_COMPILE) $T$@ $<
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(T2_DRV_OBJ_S)
-DRV_OBJS_M += $(T2_DRV_OBJ_M)
-
-# EOF
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2driver.c */
-/* */
-/* OpenType font driver implementation (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/freetype.h>
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/sfnt.h>
-#include <freetype/ttnameid.h>
-
-#include <freetype/internal/t2errors.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2driver.h"
-#include "t2gload.h"
-
-#else
-
-#include <cff/t2driver.h>
-#include <cff/t2gload.h>
-
-#endif
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t2driver
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** F A C E S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#undef PAIR_TAG
-#define PAIR_TAG( left, right ) ( ( (FT_ULong)left << 16 ) | \
- (FT_ULong)right )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* Get_Kerning */
- /* */
- /* <Description> */
- /* A driver method used to return the kerning vector between two */
- /* glyphs of the same face. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* */
- /* left_glyph :: The index of the left glyph in the kern pair. */
- /* */
- /* right_glyph :: The index of the right glyph in the kern pair. */
- /* */
- /* <Output> */
- /* kerning :: The kerning vector. This is in font units for */
- /* scalable formats, and in pixels for fixed-sizes */
- /* formats. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Only horizontal layouts (left-to-right & right-to-left) are */
- /* supported by this function. Other layouts, or more sophisticated */
- /* kernings, are out of scope of this method (the basic driver */
- /* interface is meant to be simple). */
- /* */
- /* They can be implemented by format-specific interfaces. */
- /* */
- static
- FT_Error Get_Kerning( TT_Face face,
- FT_UInt left_glyph,
- FT_UInt right_glyph,
- FT_Vector* kerning )
- {
- TT_Kern_0_Pair* pair;
-
-
- if ( !face )
- return T2_Err_Invalid_Face_Handle;
-
- kerning->x = 0;
- kerning->y = 0;
-
- if ( face->kern_pairs )
- {
- /* there are some kerning pairs in this font file! */
- FT_ULong search_tag = PAIR_TAG( left_glyph, right_glyph );
- FT_Long left, right;
-
-
- left = 0;
- right = face->num_kern_pairs - 1;
-
- while ( left <= right )
- {
- FT_Int middle = left + ( ( right - left ) >> 1 );
- FT_ULong cur_pair;
-
-
- pair = face->kern_pairs + middle;
- cur_pair = PAIR_TAG( pair->left, pair->right );
-
- if ( cur_pair == search_tag )
- goto Found;
-
- if ( cur_pair < search_tag )
- left = middle + 1;
- else
- right = middle - 1;
- }
- }
-
- Exit:
- return T2_Err_Ok;
-
- Found:
- kerning->x = pair->value;
- goto Exit;
- }
-
-
-#undef PAIR_TAG
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* Load_Glyph */
- /* */
- /* <Description> */
- /* A driver method used to load a glyph within a given glyph slot. */
- /* */
- /* <Input> */
- /* slot :: A handle to the target slot object where the glyph */
- /* will be loaded. */
- /* */
- /* size :: A handle to the source face size at which the glyph */
- /* must be scaled, loaded, etc. */
- /* */
- /* glyph_index :: The index of the glyph in the font file. */
- /* */
- /* load_flags :: A flag indicating what to load for this glyph. The */
- /* FTLOAD_??? constants can be used to control the */
- /* glyph loading process (e.g., whether the outline */
- /* should be scaled, whether to load bitmaps or not, */
- /* whether to hint the outline, etc). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- static
- FT_Error Load_Glyph( T2_GlyphSlot slot,
- T2_Size size,
- FT_UShort glyph_index,
- FT_UInt load_flags )
- {
- FT_Error error;
-
-
- if ( !slot )
- return T2_Err_Invalid_Glyph_Handle;
-
- /* check whether we want a scaled outline or bitmap */
- if ( !size )
- load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
-
- if ( load_flags & FT_LOAD_NO_SCALE )
- size = NULL;
-
- /* reset the size object if necessary */
- if ( size )
- {
- /* these two object must have the same parent */
- if ( size->face != slot->root.face )
- return T2_Err_Invalid_Face_Handle;
- }
-
- /* now load the glyph outline if necessary */
- error = T2_Load_Glyph( slot, size, glyph_index, load_flags );
-
- /* force drop-out mode to 2 - irrelevant now */
- /* slot->outline.dropout_mode = 2; */
-
- return error;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** C H A R A C T E R M A P P I N G S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* Get_Char_Index */
- /* */
- /* <Description> */
- /* Uses a charmap to return a given character code's glyph index. */
- /* */
- /* <Input> */
- /* charmap :: A handle to the source charmap object. */
- /* charcode :: The character code. */
- /* */
- /* <Return> */
- /* Glyph index. 0 means `undefined character code'. */
- /* */
- static
- FT_UInt t2_get_char_index( TT_CharMap charmap,
- FT_Long charcode )
- {
- FT_Error error;
- T2_Face face;
- TT_CMapTable* cmap;
-
-
- cmap = &charmap->cmap;
- face = (T2_Face)charmap->root.face;
-
- /* Load table if needed */
- if ( !cmap->loaded )
- {
- SFNT_Interface* sfnt = (SFNT_Interface*)face->sfnt;
-
-
- error = sfnt->load_charmap( face, cmap, face->root.stream );
- if ( error )
- return 0;
-
- cmap->loaded = TRUE;
- }
-
- return ( cmap->get_index ? cmap->get_index( cmap, charcode ) : 0 );
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** D R I V E R I N T E R F A C E ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Module_Interface t2_get_interface( T2_Driver driver,
- const char* interface )
- {
- FT_Module sfnt;
-
-
- /* we simply pass our request to the `sfnt' module */
- sfnt = FT_Get_Module( driver->root.root.library, "sfnt" );
-
- return sfnt ? sfnt->clazz->get_interface( sfnt, interface ) : 0;
- }
-
-
- /* The FT_DriverInterface structure is defined in ftdriver.h. */
-
- const FT_Driver_Class cff_driver_class =
- {
- /* begin with the FT_Module_Class fields */
- {
- ft_module_font_driver | ft_module_driver_scalable,
- sizeof( T2_DriverRec ),
- "cff",
- 0x10000L,
- 0x20000L,
-
- 0, /* module-specific interface */
-
- (FT_Module_Constructor)T2_Init_Driver,
- (FT_Module_Destructor) T2_Done_Driver,
- (FT_Module_Requester) t2_get_interface,
- },
-
- /* now the specific driver fields */
- sizeof( TT_FaceRec ),
- sizeof( FT_SizeRec ),
- sizeof( T2_GlyphSlotRec ),
-
- (FTDriver_initFace) T2_Init_Face,
- (FTDriver_doneFace) T2_Done_Face,
- (FTDriver_initSize) 0,
- (FTDriver_doneSize) 0,
- (FTDriver_initGlyphSlot)0,
- (FTDriver_doneGlyphSlot)0,
-
- (FTDriver_setCharSizes) 0,
- (FTDriver_setPixelSizes)0,
-
- (FTDriver_loadGlyph) Load_Glyph,
- (FTDriver_getCharIndex) t2_get_char_index,
-
- (FTDriver_getKerning) Get_Kerning,
- (FTDriver_attachFile) 0,
- (FTDriver_getAdvances) 0
- };
-
-
-#ifdef FT_CONFIG_OPTION_DYNAMIC_DRIVERS
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* getDriverClass */
- /* */
- /* <Description> */
- /* This function is used when compiling the TrueType driver as a */
- /* shared library (`.DLL' or `.so'). It will be used by the */
- /* high-level library of FreeType to retrieve the address of the */
- /* driver's generic interface. */
- /* */
- /* It shouldn't be implemented in a static build, as each driver must */
- /* have the same function as an exported entry point. */
- /* */
- /* <Return> */
- /* The address of the TrueType's driver generic interface. The */
- /* format-specific interface can then be retrieved through the method */
- /* interface->get_format_interface. */
- /* */
- EXPORT_FUNC( FT_Driver_Class* ) getDriverClass( void )
- {
- return &cff_driver_class;
- }
-
-
-#endif /* CONFIG_OPTION_DYNAMIC_DRIVERS */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2driver.h */
-/* */
-/* High-level OpenType driver interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2DRIVER_H
-#define T2DRIVER_H
-
-#include <freetype/internal/ftdriver.h>
-
- FT_EXPORT_VAR( const FT_Driver_Class ) cff_driver_class;
-
-
-#endif /* T2DRIVER_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2gload.c */
-/* */
-/* OpenType Glyph Loader (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftcalc.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/sfnt.h>
-#include <freetype/ftoutln.h>
-#include <freetype/tttags.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2load.h"
-#include "t2gload.h"
-
-#else
-
-#include <cff/t2load.h>
-#include <cff/t2gload.h>
-
-#endif
-
-
-#include <freetype/internal/t2errors.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t2gload
-
-
- typedef enum T2_Operator_
- {
- t2_op_unknown = 0,
-
- t2_op_rmoveto,
- t2_op_hmoveto,
- t2_op_vmoveto,
-
- t2_op_rlineto,
- t2_op_hlineto,
- t2_op_vlineto,
-
- t2_op_rrcurveto,
- t2_op_hhcurveto,
- t2_op_hvcurveto,
- t2_op_rcurveline,
- t2_op_rlinecurve,
- t2_op_vhcurveto,
- t2_op_vvcurveto,
-
- t2_op_flex,
- t2_op_hflex,
- t2_op_hflex1,
- t2_op_flex1,
-
- t2_op_endchar,
-
- t2_op_hstem,
- t2_op_vstem,
- t2_op_hstemhm,
- t2_op_vstemhm,
-
- t2_op_hintmask,
- t2_op_cntrmask,
-
- t2_op_abs,
- t2_op_add,
- t2_op_sub,
- t2_op_div,
- t2_op_neg,
- t2_op_random,
- t2_op_mul,
- t2_op_sqrt,
-
- t2_op_blend,
-
- t2_op_drop,
- t2_op_exch,
- t2_op_index,
- t2_op_roll,
- t2_op_dup,
-
- t2_op_put,
- t2_op_get,
- t2_op_store,
- t2_op_load,
-
- t2_op_and,
- t2_op_or,
- t2_op_not,
- t2_op_eq,
- t2_op_ifelse,
-
- t2_op_callsubr,
- t2_op_callgsubr,
- t2_op_return,
-
- /* do not remove */
- t2_op_max
-
- } T2_Operator;
-
-
-#define T2_COUNT_CHECK_WIDTH 0x80
-#define T2_COUNT_EXACT 0x40
-#define T2_COUNT_CLEAR_STACK 0x20
-
-
- static const FT_Byte t2_argument_counts[] =
- {
- 0, /* unknown */
-
- 2 | T2_COUNT_CHECK_WIDTH | T2_COUNT_EXACT, /* rmoveto */
- 1 | T2_COUNT_CHECK_WIDTH | T2_COUNT_EXACT,
- 1 | T2_COUNT_CHECK_WIDTH | T2_COUNT_EXACT,
-
- 0 | T2_COUNT_CLEAR_STACK, /* rlineto */
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
-
- 0 | T2_COUNT_CLEAR_STACK, /* rrcurveto */
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
- 0 | T2_COUNT_CLEAR_STACK,
-
- 13, /* flex */
- 7,
- 9,
- 11,
-
- 0, /* endchar */
-
- 2 | T2_COUNT_CHECK_WIDTH, /* hstem */
- 2 | T2_COUNT_CHECK_WIDTH,
- 2 | T2_COUNT_CHECK_WIDTH,
- 2 | T2_COUNT_CHECK_WIDTH,
-
- 0, /* hintmask */
- 0, /* cntrmask */
-
- 1, /* abs */
- 2,
- 2,
- 2,
- 1,
- 0,
- 2,
- 1,
-
- 1, /* blend */
-
- 1, /* drop */
- 2,
- 1,
- 2,
- 1,
-
- 2, /* put */
- 1,
- 4,
- 3,
-
- 2, /* and */
- 2,
- 1,
- 2,
- 4,
-
- 1, /* callsubr */
- 1,
- 0
- };
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** GENERIC CHARSTRING PARSING *********/
- /********** *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Init_Builder */
- /* */
- /* <Description> */
- /* Initializes a given glyph builder. */
- /* */
- /* <InOut> */
- /* builder :: A pointer to the glyph builder to initialize. */
- /* */
- /* <Input> */
- /* face :: The current face object. */
- /* */
- /* size :: The current size object. */
- /* */
- /* glyph :: The current glyph object. */
- /* */
- static
- void T2_Init_Builder( T2_Builder* builder,
- TT_Face face,
- T2_Size size,
- T2_GlyphSlot glyph )
- {
- builder->path_begun = 0;
- builder->load_points = 1;
-
- builder->face = face;
- builder->glyph = glyph;
- builder->memory = face->root.memory;
-
- if ( glyph )
- {
- FT_GlyphLoader* loader = glyph->root.loader;
-
-
- builder->loader = loader;
- builder->base = &loader->base.outline;
- builder->current = &loader->current.outline;
- FT_GlyphLoader_Rewind( loader );
- }
-
- if ( size )
- {
- builder->scale_x = size->metrics.x_scale;
- builder->scale_y = size->metrics.y_scale;
- }
-
- builder->pos_x = 0;
- builder->pos_y = 0;
-
- builder->left_bearing.x = 0;
- builder->left_bearing.y = 0;
- builder->advance.x = 0;
- builder->advance.y = 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Done_Builder */
- /* */
- /* <Description> */
- /* Finalizes a given glyph builder. Its contents can still be used */
- /* after the call, but the function saves important information */
- /* within the corresponding glyph slot. */
- /* */
- /* <Input> */
- /* builder :: A pointer to the glyph builder to finalize. */
- /* */
- static
- void T2_Done_Builder( T2_Builder* builder )
- {
- T2_GlyphSlot glyph = builder->glyph;
-
-
- if ( glyph )
- glyph->root.outline = *builder->base;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* t2_compute_bias */
- /* */
- /* <Description> */
- /* Computes the bias value in dependence of the number of glyph */
- /* subroutines. */
- /* */
- /* <Input> */
- /* num_subrs :: The number of glyph subroutines. */
- /* */
- /* <Return> */
- /* The bias value. */
- static
- FT_Int t2_compute_bias( FT_UInt num_subrs )
- {
- FT_Int result;
-
-
- if ( num_subrs < 1240 )
- result = 107;
- else if ( num_subrs < 33900 )
- result = 1131;
- else
- result = 32768;
-
- return result;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Init_Decoder */
- /* */
- /* <Description> */
- /* Initializes a given glyph decoder. */
- /* */
- /* <InOut> */
- /* decoder :: A pointer to the glyph builder to initialize. */
- /* */
- /* <Input> */
- /* face :: The current face object. */
- /* */
- /* size :: The current size object. */
- /* */
- /* slot :: The current glyph object. */
- /* */
- LOCAL_FUNC
- void T2_Init_Decoder( T2_Decoder* decoder,
- TT_Face face,
- T2_Size size,
- T2_GlyphSlot slot )
- {
- CFF_Font* cff = (CFF_Font*)face->extra.data;
-
-
- /* clear everything */
- MEM_Set( decoder, 0, sizeof ( *decoder ) );
-
- /* initialize builder */
- T2_Init_Builder( &decoder->builder, face, size, slot );
-
- /* initialize Type2 decoder */
- decoder->num_globals = cff->num_global_subrs;
- decoder->globals = cff->global_subrs;
- decoder->globals_bias = t2_compute_bias( decoder->num_globals );
- }
-
-
- /* this function is used to select the locals subrs array */
- LOCAL_DEF
- void T2_Prepare_Decoder( T2_Decoder* decoder,
- FT_UInt glyph_index )
- {
- CFF_Font* cff = (CFF_Font*)decoder->builder.face->extra.data;
- CFF_SubFont* sub = &cff->top_font;
-
-
- /* manage CID fonts */
- if ( cff->num_subfonts >= 1 )
- {
- FT_Byte fd_index = CFF_Get_FD( &cff->fd_select, glyph_index );
-
-
- sub = cff->subfonts[fd_index];
- }
-
- decoder->num_locals = sub->num_local_subrs;
- decoder->locals = sub->local_subrs;
- decoder->locals_bias = t2_compute_bias( decoder->num_locals );
-
- decoder->glyph_width = sub->private_dict.default_width;
- decoder->nominal_width = sub->private_dict.nominal_width;
- }
-
-
- /* check that there is enough room for `count' more points */
- static
- FT_Error check_points( T2_Builder* builder,
- FT_Int count )
- {
- return FT_GlyphLoader_Check_Points( builder->loader, count, 0 );
- }
-
-
- /* add a new point, do not check space */
- static
- void add_point( T2_Builder* builder,
- FT_Pos x,
- FT_Pos y,
- FT_Byte flag )
- {
- FT_Outline* outline = builder->current;
-
-
- if ( builder->load_points )
- {
- FT_Vector* point = outline->points + outline->n_points;
- FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points;
-
-
- point->x = x >> 16;
- point->y = y >> 16;
- *control = flag ? FT_Curve_Tag_On : FT_Curve_Tag_Cubic;
-
- builder->last = *point;
- }
- outline->n_points++;
- }
-
-
- /* check space for a new on-curve point, then add it */
- static
- FT_Error add_point1( T2_Builder* builder,
- FT_Pos x,
- FT_Pos y )
- {
- FT_Error error;
-
-
- error = check_points( builder, 1 );
- if ( !error )
- add_point( builder, x, y, 1 );
-
- return error;
- }
-
-
- /* check room for a new contour, then add it */
- static
- FT_Error add_contour( T2_Builder* builder )
- {
- FT_Outline* outline = builder->current;
- FT_Error error;
-
-
- if ( !builder->load_points )
- {
- outline->n_contours++;
- return T2_Err_Ok;
- }
-
- error = FT_GlyphLoader_Check_Points( builder->loader, 0, 1 );
- if ( !error )
- {
- if ( outline->n_contours > 0 )
- outline->contours[outline->n_contours - 1] = outline->n_points - 1;
-
- outline->n_contours++;
- }
-
- return error;
- }
-
-
- /* if a path was begun, add its first on-curve point */
- static
- FT_Error start_point( T2_Builder* builder,
- FT_Pos x,
- FT_Pos y )
- {
- FT_Error error = 0;
-
-
- /* test whether we are building a new contour */
- if ( !builder->path_begun )
- {
- builder->path_begun = 1;
- error = add_contour( builder );
- if ( !error )
- error = add_point1( builder, x, y );
- }
- return error;
- }
-
-
- /* close the current contour */
- static
- void close_contour( T2_Builder* builder )
- {
- FT_Outline* outline = builder->current;
-
- /* XXXX: We must not include the last point in the path if it */
- /* is located on the first point. */
- if ( outline->n_points > 1 )
- {
- FT_Int first = 0;
- FT_Vector* p1 = outline->points + first;
- FT_Vector* p2 = outline->points + outline->n_points - 1;
-
- if ( outline->n_contours > 1 )
- {
- first = outline->contours[outline->n_contours - 2] + 1;
- p1 = outline->points + first;
- }
-
- if ( p1->x == p2->x && p1->y == p2->y )
- outline->n_points--;
- }
-
- if ( outline->n_contours > 0 )
- outline->contours[outline->n_contours - 1] = outline->n_points - 1;
- }
-
-
-#define USE_ARGS( n ) do \
- { \
- top -= n; \
- if ( top < decoder->stack ) \
- goto Stack_Underflow; \
- } while ( 0 )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Parse_CharStrings */
- /* */
- /* <Description> */
- /* Parses a given Type 2 charstrings program. */
- /* */
- /* <InOut> */
- /* decoder :: The current Type 1 decoder. */
- /* */
- /* <Input> */
- /* charstring_base :: The base of the charstring stream. */
- /* */
- /* charstring_len :: The length in bytes of the charstring stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error T2_Parse_CharStrings( T2_Decoder* decoder,
- FT_Byte* charstring_base,
- FT_Int charstring_len )
- {
- FT_Error error;
- T2_Decoder_Zone* zone;
- FT_Byte* ip;
- FT_Byte* limit;
- T2_Builder* builder = &decoder->builder;
- FT_Outline* outline;
- FT_Pos x, y;
- FT_Fixed seed;
- FT_Fixed* stack;
-
-
- /* set default width */
- decoder->num_hints = 0;
- decoder->read_width = 1;
-
- /* compute random seed from stack address of parameter */
- seed = (FT_Fixed)(char*)&seed ^
- (FT_Fixed)(char*)&decoder ^
- (FT_Fixed)(char*)&charstring_base;
- seed = ( seed ^ ( seed >> 10 ) ^ ( seed >> 20 ) ) & 0xFFFF;
- if ( seed == 0 )
- seed = 0x7384;
-
- /* initialize the decoder */
- decoder->top = decoder->stack;
- decoder->zone = decoder->zones;
- zone = decoder->zones;
- stack = decoder->top;
-
- builder->path_begun = 0;
-
- zone->base = charstring_base;
- limit = zone->limit = charstring_base + charstring_len;
- ip = zone->cursor = zone->base;
-
- error = T2_Err_Ok;
- outline = builder->current;
-
- x = builder->pos_x;
- y = builder->pos_y;
-
- /* now, execute loop */
- while ( ip < limit )
- {
- T2_Operator op;
- FT_Byte v;
- FT_Byte count;
-
-
- /********************************************************************/
- /* */
- /* Decode operator or operand */
- /* */
- v = *ip++;
- if ( v >= 32 || v == 28 )
- {
- FT_Int shift = 16;
- FT_Int32 val;
-
-
- /* this is an operand, push it on the stack */
- if ( v == 28 )
- {
- if ( ip + 1 >= limit )
- goto Syntax_Error;
- val = (FT_Short)( ( (FT_Short)ip[0] << 8 ) | ip[1] );
- ip += 2;
- }
- else if ( v < 247 )
- val = (FT_Long)v - 139;
- else if ( v < 251 )
- {
- if ( ip >= limit )
- goto Syntax_Error;
- val = ( (FT_Long)v - 247 ) * 256 + *ip++ + 108;
- }
- else if ( v < 255 )
- {
- if ( ip >= limit )
- goto Syntax_Error;
- val = -( (FT_Long)v - 251 ) * 256 - *ip++ - 108;
- }
- else
- {
- if ( ip + 3 >= limit )
- goto Syntax_Error;
- val = ( (FT_Int32)ip[0] << 24 ) |
- ( (FT_Int32)ip[1] << 16 ) |
- ( (FT_Int32)ip[2] << 8 ) |
- ip[3];
- ip += 4;
- shift = 0;
- }
- if ( decoder->top - stack >= T2_MAX_OPERANDS )
- goto Stack_Overflow;
-
- val <<= shift;
- *decoder->top++ = val;
-
-#ifdef FT_DEBUG_LEVEL_TRACE
- if ( !( val & 0xFFFF ) )
- FT_TRACE4(( " %d", (FT_Int32)( val >> 16 ) ));
- else
- FT_TRACE4(( " %.2f", val/65536.0 ));
-#endif
-
- }
- else
- {
- FT_Fixed* args = decoder->top;
- FT_Int num_args = args - decoder->stack;
- FT_Int req_args;
-
-
- /* find operator */
- op = t2_op_unknown;
-
- switch ( v )
- {
- case 1:
- op = t2_op_hstem;
- break;
- case 3:
- op = t2_op_vstem;
- break;
- case 4:
- op = t2_op_vmoveto;
- break;
- case 5:
- op = t2_op_rlineto;
- break;
- case 6:
- op = t2_op_hlineto;
- break;
- case 7:
- op = t2_op_vlineto;
- break;
- case 8:
- op = t2_op_rrcurveto;
- break;
- case 10:
- op = t2_op_callsubr;
- break;
- case 11:
- op = t2_op_return;
- break;
- case 12:
- {
- if ( ip >= limit )
- goto Syntax_Error;
- v = *ip++;
-
- switch ( v )
- {
- case 3:
- op = t2_op_and;
- break;
- case 4:
- op = t2_op_or;
- break;
- case 5:
- op = t2_op_not;
- break;
- case 8:
- op = t2_op_store;
- break;
- case 9:
- op = t2_op_abs;
- break;
- case 10:
- op = t2_op_add;
- break;
- case 11:
- op = t2_op_sub;
- break;
- case 12:
- op = t2_op_div;
- break;
- case 13:
- op = t2_op_load;
- break;
- case 14:
- op = t2_op_neg;
- break;
- case 15:
- op = t2_op_eq;
- break;
- case 18:
- op = t2_op_drop;
- break;
- case 20:
- op = t2_op_put;
- break;
- case 21:
- op = t2_op_get;
- break;
- case 22:
- op = t2_op_ifelse;
- break;
- case 23:
- op = t2_op_random;
- break;
- case 24:
- op = t2_op_mul;
- break;
- case 26:
- op = t2_op_sqrt;
- break;
- case 27:
- op = t2_op_dup;
- break;
- case 28:
- op = t2_op_exch;
- break;
- case 29:
- op = t2_op_index;
- break;
- case 30:
- op = t2_op_roll;
- break;
- case 34:
- op = t2_op_hflex;
- break;
- case 35:
- op = t2_op_flex;
- break;
- case 36:
- op = t2_op_hflex1;
- break;
- case 37:
- op = t2_op_flex1;
- break;
- default:
- /* decrement ip for syntax error message */
- ip--;
- }
- }
- break;
- case 14:
- op = t2_op_endchar;
- break;
- case 16:
- op = t2_op_blend;
- break;
- case 18:
- op = t2_op_hstemhm;
- break;
- case 19:
- op = t2_op_hintmask;
- break;
- case 20:
- op = t2_op_cntrmask;
- break;
- case 21:
- op = t2_op_rmoveto;
- break;
- case 22:
- op = t2_op_hmoveto;
- break;
- case 23:
- op = t2_op_vstemhm;
- break;
- case 24:
- op = t2_op_rcurveline;
- break;
- case 25:
- op = t2_op_rlinecurve;
- break;
- case 26:
- op = t2_op_vvcurveto;
- break;
- case 27:
- op = t2_op_hhcurveto;
- break;
- case 29:
- op = t2_op_callgsubr;
- break;
- case 30:
- op = t2_op_vhcurveto;
- break;
- case 31:
- op = t2_op_hvcurveto;
- break;
- default:
- ;
- }
- if ( op == t2_op_unknown )
- goto Syntax_Error;
-
- /* check arguments */
- req_args = count = t2_argument_counts[op];
- if ( req_args & T2_COUNT_CHECK_WIDTH )
- {
- args = stack;
- if ( num_args & 1 && decoder->read_width )
- {
- decoder->glyph_width = decoder->nominal_width +
- ( stack[0] >> 16 );
- num_args--;
- args++;
- }
- decoder->read_width = 0;
- req_args = 0;
- }
-
- req_args &= 15;
- if ( num_args < req_args )
- goto Stack_Underflow;
- args -= req_args;
- num_args -= req_args;
-
- switch ( op )
- {
- case t2_op_hstem:
- case t2_op_vstem:
- case t2_op_hstemhm:
- case t2_op_vstemhm:
- /* if the number of arguments is not even, the first one */
- /* is simply the glyph width, encoded as the difference */
- /* to nominalWidthX */
- FT_TRACE4(( op == t2_op_hstem ? " hstem" :
- op == t2_op_vstem ? " vstem" :
- op == t2_op_hstemhm ? " hstemhm" :
- " vstemhm" ));
- decoder->num_hints += num_args / 2;
- args = stack;
- break;
-
- case t2_op_hintmask:
- case t2_op_cntrmask:
- FT_TRACE4(( op == t2_op_hintmask ? " hintmask"
- : " cntrmask" ));
-
- decoder->num_hints += num_args / 2;
- ip += ( decoder->num_hints + 7 ) >> 3;
- if ( ip >= limit )
- goto Syntax_Error;
- args = stack;
- break;
-
- case t2_op_rmoveto:
- FT_TRACE4(( " rmoveto" ));
-
- close_contour( builder );
- builder->path_begun = 0;
- x += args[0];
- y += args[1];
- args = stack;
- break;
-
- case t2_op_vmoveto:
- FT_TRACE4(( " vmoveto" ));
-
- close_contour( builder );
- builder->path_begun = 0;
- y += args[0];
- args = stack;
- break;
-
- case t2_op_hmoveto:
- FT_TRACE4(( " hmoveto" ));
-
- close_contour( builder );
- builder->path_begun = 0;
- x += args[0];
- args = stack;
- break;
-
- case t2_op_rlineto:
- FT_TRACE4(( " rlineto" ));
-
- if ( start_point ( builder, x, y ) ||
- check_points( builder, num_args / 2 ) )
- goto Memory_Error;
-
- if ( num_args < 2 || num_args & 1 )
- goto Stack_Underflow;
-
- args = stack;
- while ( args < decoder->top )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 1 );
- args += 2;
- }
- args = stack;
- break;
-
- case t2_op_hlineto:
- case t2_op_vlineto:
- {
- FT_Int phase = ( op == t2_op_hlineto );
-
-
- FT_TRACE4(( op == t2_op_hlineto ? " hlineto"
- : " vlineto" ));
-
- if ( start_point ( builder, x, y ) ||
- check_points( builder, num_args ) )
- goto Memory_Error;
-
- args = stack;
- while (args < decoder->top )
- {
- if ( phase )
- x += args[0];
- else
- y += args[0];
-
- if ( add_point1( builder, x, y ) )
- goto Memory_Error;
-
- args++;
- phase ^= 1;
- }
- args = stack;
- }
- break;
-
- case t2_op_rrcurveto:
- FT_TRACE4(( " rrcurveto" ));
-
- /* check number of arguments; must be a multiple of 6 */
- if ( num_args % 6 != 0 )
- goto Stack_Underflow;
-
- if ( start_point ( builder, x, y ) ||
- check_points( builder, num_args / 2 ) )
- goto Memory_Error;
-
- args = stack;
- while ( args < decoder->top )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 0 );
- x += args[2];
- y += args[3];
- add_point( builder, x, y, 0 );
- x += args[4];
- y += args[5];
- add_point( builder, x, y, 1 );
- args += 6;
- }
- args = stack;
- break;
-
- case t2_op_vvcurveto:
- FT_TRACE4(( " vvcurveto" ));
-
- if ( start_point ( builder, x, y ) )
- goto Memory_Error;
-
- args = stack;
- if ( num_args & 1 )
- {
- x += args[0];
- args++;
- num_args--;
- }
-
- if ( num_args % 4 != 0 )
- goto Stack_Underflow;
-
- if ( check_points( builder, 3 * ( num_args / 4 ) ) )
- goto Memory_Error;
-
- while ( args < decoder->top )
- {
- y += args[0];
- add_point( builder, x, y, 0 );
- x += args[1];
- y += args[2];
- add_point( builder, x, y, 0 );
- y += args[3];
- add_point( builder, x, y, 1 );
- args += 4;
- }
- args = stack;
- break;
-
- case t2_op_hhcurveto:
- FT_TRACE4(( " hhcurveto" ));
-
- if ( start_point ( builder, x, y ) )
- goto Memory_Error;
-
- args = stack;
- if ( num_args & 1 )
- {
- y += args[0];
- args++;
- num_args--;
- }
-
- if ( num_args % 4 != 0 )
- goto Stack_Underflow;
-
- if ( check_points( builder, 3 * ( num_args / 4 ) ) )
- goto Memory_Error;
-
- while ( args < decoder->top )
- {
- x += args[0];
- add_point( builder, x, y, 0 );
- x += args[1];
- y += args[2];
- add_point( builder, x, y, 0 );
- x += args[3];
- add_point( builder, x, y, 1 );
- args += 4;
- }
- args = stack;
- break;
-
- case t2_op_vhcurveto:
- case t2_op_hvcurveto:
- {
- FT_Int phase;
-
-
- FT_TRACE4(( op == t2_op_vhcurveto ? " vhcurveto"
- : " hvcurveto" ));
-
- if ( start_point ( builder, x, y ) )
- goto Memory_Error;
-
- args = stack;
- if (num_args < 4 || ( num_args % 4 ) > 1 )
- goto Stack_Underflow;
-
- if ( check_points( builder, ( num_args / 4 ) * 3 ) )
- goto Stack_Underflow;
-
- phase = ( op == t2_op_hvcurveto );
-
- while ( num_args >= 4 )
- {
- num_args -= 4;
- if ( phase )
- {
- x += args[0];
- add_point( builder, x, y, 0 );
- x += args[1];
- y += args[2];
- add_point( builder, x, y, 0 );
- y += args[3];
- if ( num_args == 1 )
- x += args[4];
- add_point( builder, x, y, 1 );
- }
- else
- {
- y += args[0];
- add_point( builder, x, y, 0 );
- x += args[1];
- y += args[2];
- add_point( builder, x, y, 0 );
- x += args[3];
- if ( num_args == 1 )
- y += args[4];
- add_point( builder, x, y, 1 );
- }
- args += 4;
- phase ^= 1;
- }
- args = stack;
- }
- break;
-
- case t2_op_rlinecurve:
- {
- FT_Int num_lines = ( num_args - 6 ) / 2;
-
-
- FT_TRACE4(( " rlinecurve" ));
-
- if ( num_args < 8 || ( num_args - 6 ) & 1 )
- goto Stack_Underflow;
-
- if ( start_point( builder, x, y ) ||
- check_points( builder, num_lines + 3 ) )
- goto Memory_Error;
-
- args = stack;
-
- /* first, add the line segments */
- while ( num_lines > 0 )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 1 );
- args += 2;
- num_lines--;
- }
-
- /* then the curve */
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 0 );
- x += args[2];
- y += args[3];
- add_point( builder, x, y, 0 );
- x += args[4];
- y += args[5];
- add_point( builder, x, y, 1 );
- args = stack;
- }
- break;
-
- case t2_op_rcurveline:
- {
- FT_Int num_curves = ( num_args - 2 ) / 6;
-
-
- FT_TRACE4(( " rcurveline" ));
-
- if ( num_args < 8 || ( num_args - 2 ) % 6 )
- goto Stack_Underflow;
-
- if ( start_point ( builder, x, y ) ||
- check_points( builder, num_curves*3 + 2 ) )
- goto Memory_Error;
-
- args = stack;
-
- /* first, add the curves */
- while ( num_curves > 0 )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 0 );
- x += args[2];
- y += args[3];
- add_point( builder, x, y, 0 );
- x += args[4];
- y += args[5];
- add_point( builder, x, y, 1 );
- args += 6;
- num_curves--;
- }
-
- /* then the final line */
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 1 );
- args = stack;
- }
- break;
-
- case t2_op_hflex1:
- {
- FT_Pos start_y;
-
-
- FT_TRACE4(( " hflex1" ));
-
- args = stack;
-
- /* adding five more points; 4 control points, 1 on-curve point */
- /* make sure we have enough space for the start point if it */
- /* needs to be added.. */
- if ( start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
- goto Memory_Error;
-
- /* Record the starting point's y postion for later use */
- start_y = y;
-
- /* first control point */
- x += args[0];
- y += args[1];
- add_point( builder, x, y, 0 );
-
- /* second control point */
- x += args[2];
- y += args[3];
- add_point( builder, x, y, 0 );
-
- /* join point; on curve, with y-value the same as the last */
- /* control point's y-value */
- x += args[4];
- add_point( builder, x, y, 1 );
-
- /* third control point, with y-value the same as the join */
- /* point's y-value */
- x += args[5];
- add_point( builder, x, y, 0 );
-
- /* fourth control point */
- x += args[6];
- y += args[7];
- add_point( builder, x, y, 0 );
-
- /* ending point, with y-value the same as the start */
- x += args[8];
- y = start_y;
- add_point( builder, x, y, 1 );
-
- args = stack;
- break;
- }
-
- case t2_op_hflex:
- {
- FT_Pos start_y;
-
-
- FT_TRACE4(( " hflex" ));
-
- args = stack;
-
- /* adding six more points; 4 control points, 2 on-curve points */
- if ( start_point( builder, x, y ) ||
- check_points ( builder, 6 ) )
- goto Memory_Error;
-
- /* record the starting point's y-position for later use */
- start_y = y;
-
- /* first control point */
- x += args[0];
- add_point( builder, x, y, 0 );
-
- /* second control point */
- x += args[1];
- y += args[2];
- add_point( builder, x, y, 0 );
-
- /* join point; on curve, with y-value the same as the last */
- /* control point's y-value */
- x += args[3];
- add_point( builder, x, y, 1 );
-
- /* third control point, with y-value the same as the join */
- /* point's y-value */
- x += args[4];
- add_point( builder, x, y, 0 );
-
- /* fourth control point */
- x += args[5];
- y = start_y;
- add_point( builder, x, y, 0 );
-
- /* ending point, with y-value the same as the start point's */
- /* y-value -- we don't add this point, though */
- x += args[6];
- add_point( builder, x, y, 1 );
-
- args = stack;
- break;
- }
-
- case t2_op_flex1:
- {
- FT_Pos start_x, start_y; /* record start x, y values for alter */
- /* use */
- FT_Int dx = 0, dy = 0; /* used in horizontal/vertical */
- /* algorithm below */
- FT_Int horizontal, count;
-
-
- FT_TRACE4(( " flex1" ));
-
- /* adding six more points; 4 control points, 2 on-curve points */
- if ( start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
- goto Memory_Error;
-
- /* record the starting point's x, y postion for later use */
- start_x = x;
- start_y = y;
-
- /* XXX: figure out whether this is supposed to be a horizontal */
- /* or vertical flex; the Type 2 specification is vague... */
-
- args = stack;
-
- /* grab up to the last argument */
- for ( count = 5; count > 0; count-- )
- {
- dx += args[0];
- dy += args[1];
- args += 2;
- }
-
- /* rewind */
- args = stack;
-
- if ( dx < 0 ) dx = -dx;
- if ( dy < 0 ) dy = -dy;
-
- /* strange test, but here it is... */
- horizontal = ( dx > dy );
-
- for ( count = 5; count > 0; count-- )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y, (FT_Bool)( count == 3 ) );
- args += 2;
- }
-
- /* is last operand an x- or y-delta? */
- if ( horizontal )
- {
- x += args[0];
- y = start_y;
- }
- else
- {
- x = start_x;
- y += args[0];
- }
-
- add_point( builder, x, y, 1 );
-
- args = stack;
- break;
- }
-
- case t2_op_flex:
- {
- FT_UInt count;
-
-
- FT_TRACE4(( " flex" ));
-
- if ( start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
- goto Memory_Error;
-
- args = stack;
- for ( count = 6; count > 0; count-- )
- {
- x += args[0];
- y += args[1];
- add_point( builder, x, y,
- (FT_Bool)( count == 3 || count == 0 ) );
- args += 2;
- }
-
- args = stack;
- }
- break;
-
- case t2_op_endchar:
- FT_TRACE4(( " endchar" ));
-
- close_contour( builder );
-
- /* add current outline to the glyph slot */
- FT_GlyphLoader_Add( builder->loader );
-
- /* return now! */
- FT_TRACE4(( "\n\n" ));
- return T2_Err_Ok;
-
- case t2_op_abs:
- FT_TRACE4(( " abs" ));
-
- if ( args[0] < 0 )
- args[0] = -args[0];
- args++;
- break;
-
- case t2_op_add:
- FT_TRACE4(( " add" ));
-
- args[0] += args[1];
- args++;
- break;
-
- case t2_op_sub:
- FT_TRACE4(( " sub" ));
-
- args[0] -= args[1];
- args++;
- break;
-
- case t2_op_div:
- FT_TRACE4(( " div" ));
-
- args[0] = FT_DivFix( args[0], args[1] );
- args++;
- break;
-
- case t2_op_neg:
- FT_TRACE4(( " neg" ));
-
- args[0] = -args[0];
- args++;
- break;
-
- case t2_op_random:
- {
- FT_Fixed rand;
-
-
- FT_TRACE4(( " rand" ));
-
- rand = seed;
- if ( rand >= 0x8000 )
- rand++;
-
- args[0] = rand;
- seed = FT_MulFix( seed, 0x10000L - seed );
- if ( seed == 0 )
- seed += 0x2873;
- args++;
- }
- break;
-
- case t2_op_mul:
- FT_TRACE4(( " mul" ));
-
- args[0] = FT_MulFix( args[0], args[1] );
- args++;
- break;
-
- case t2_op_sqrt:
- FT_TRACE4(( " sqrt" ));
-
- if ( args[0] > 0 )
- {
- FT_Int count = 9;
- FT_Fixed root = args[0];
- FT_Fixed new_root;
-
-
- for (;;)
- {
- new_root = ( root + FT_DivFix(args[0],root) + 1 ) >> 1;
- if ( new_root == root || count <= 0 )
- break;
- root = new_root;
- }
- args[0] = new_root;
- }
- else
- args[0] = 0;
- args++;
- break;
-
- case t2_op_drop:
- /* nothing */
- FT_TRACE4(( " drop" ));
-
- break;
-
- case t2_op_exch:
- {
- FT_Fixed tmp;
-
-
- FT_TRACE4(( " exch" ));
-
- tmp = args[0];
- args[0] = args[1];
- args[1] = tmp;
- args += 2;
- }
- break;
-
- case t2_op_index:
- {
- FT_Int index = args[0] >> 16;
-
-
- FT_TRACE4(( " index" ));
-
- if ( index < 0 )
- index = 0;
- else if ( index > num_args - 2 )
- index = num_args - 2;
- args[0] = args[-( index + 1 )];
- args++;
- }
- break;
-
- case t2_op_roll:
- {
- FT_Int count = (FT_Int)( args[0] >> 16 );
- FT_Int index = (FT_Int)( args[1] >> 16 );
-
-
- FT_TRACE4(( " roll" ));
-
- if ( count <= 0 )
- count = 1;
-
- args -= count;
- if ( args < stack )
- goto Stack_Underflow;
-
- if ( index >= 0 )
- {
- while ( index > 0 )
- {
- FT_Fixed tmp = args[count - 1];
- FT_Int i;
-
-
- for ( i = count - 2; i >= 0; i-- )
- args[i + 1] = args[i];
- args[0] = tmp;
- index--;
- }
- }
- else
- {
- while ( index < 0 )
- {
- FT_Fixed tmp = args[0];
- FT_Int i;
-
-
- for ( i = 0; i < count - 1; i++ )
- args[i] = args[i + 1];
- args[count - 1] = tmp;
- index++;
- }
- }
- args += count;
- }
- break;
-
- case t2_op_dup:
- FT_TRACE4(( " dup" ));
-
- args[1] = args[0];
- args++;
- break;
-
- case t2_op_put:
- {
- FT_Fixed val = args[0];
- FT_Int index = (FT_Int)( args[1] >> 16 );
-
-
- FT_TRACE4(( " put" ));
-
- if ( index >= 0 && index < decoder->len_buildchar )
- decoder->buildchar[index] = val;
- }
- break;
-
- case t2_op_get:
- {
- FT_Int index = (FT_Int)( args[0] >> 16 );
- FT_Fixed val = 0;
-
-
- FT_TRACE4(( " get" ));
-
- if ( index >= 0 && index < decoder->len_buildchar )
- val = decoder->buildchar[index];
-
- args[0] = val;
- args++;
- }
- break;
-
- case t2_op_store:
- FT_TRACE4(( " store "));
-
- goto Unimplemented;
-
- case t2_op_load:
- FT_TRACE4(( " load" ));
-
- goto Unimplemented;
-
- case t2_op_and:
- {
- FT_Fixed cond = args[0] && args[1];
-
-
- FT_TRACE4(( " and" ));
-
- args[0] = cond ? 0x10000L : 0;
- args++;
- }
- break;
-
- case t2_op_or:
- {
- FT_Fixed cond = args[0] || args[1];
-
-
- FT_TRACE4(( " or" ));
-
- args[0] = cond ? 0x10000L : 0;
- args++;
- }
- break;
-
- case t2_op_eq:
- {
- FT_Fixed cond = !args[0];
-
-
- FT_TRACE4(( " eq" ));
-
- args[0] = cond ? 0x10000L : 0;
- args++;
- }
- break;
-
- case t2_op_ifelse:
- {
- FT_Fixed cond = (args[2] <= args[3]);
-
-
- FT_TRACE4(( " ifelse" ));
-
- if ( !cond )
- args[0] = args[1];
- args++;
- }
- break;
-
- case t2_op_callsubr:
- {
- FT_UInt index = (FT_UInt)( ( args[0] >> 16 ) +
- decoder->locals_bias );
-
-
- FT_TRACE4(( " callsubr(%d)", index ));
-
- if ( index >= decoder->num_locals )
- {
- FT_ERROR(( "T2_Parse_CharStrings:" ));
- FT_ERROR(( " invalid local subr index\n" ));
- goto Syntax_Error;
- }
-
- if ( zone - decoder->zones >= T2_MAX_SUBRS_CALLS )
- {
- FT_ERROR(( "T2_Parse_CharStrings: too many nested subrs\n" ));
- goto Syntax_Error;
- }
-
- zone->cursor = ip; /* save current instruction pointer */
-
- zone++;
- zone->base = decoder->locals[index];
- zone->limit = decoder->locals[index+1];
- zone->cursor = zone->base;
-
- if ( !zone->base )
- {
- FT_ERROR(( "T2_Parse_CharStrings: invoking empty subrs!\n" ));
- goto Syntax_Error;
- }
-
- decoder->zone = zone;
- ip = zone->base;
- limit = zone->limit;
- }
- break;
-
- case t2_op_callgsubr:
- {
- FT_UInt index = (FT_UInt)( ( args[0] >> 16 ) +
- decoder->globals_bias );
-
-
- FT_TRACE4(( " callgsubr(%d)", index ));
-
- if ( index >= decoder->num_globals )
- {
- FT_ERROR(( "T2_Parse_CharStrings:" ));
- FT_ERROR(( " invalid global subr index\n" ));
- goto Syntax_Error;
- }
-
- if ( zone - decoder->zones >= T2_MAX_SUBRS_CALLS )
- {
- FT_ERROR(( "T2_Parse_CharStrings: too many nested subrs\n" ));
- goto Syntax_Error;
- }
-
- zone->cursor = ip; /* save current instruction pointer */
-
- zone++;
- zone->base = decoder->globals[index];
- zone->limit = decoder->globals[index+1];
- zone->cursor = zone->base;
-
- if ( !zone->base )
- {
- FT_ERROR(( "T2_Parse_CharStrings: invoking empty subrs!\n" ));
- goto Syntax_Error;
- }
-
- decoder->zone = zone;
- ip = zone->base;
- limit = zone->limit;
- }
- break;
-
- case t2_op_return:
- FT_TRACE4(( " return" ));
-
- if ( decoder->zone <= decoder->zones )
- {
- FT_ERROR(( "T2_Parse_CharStrings: unexpected return\n" ));
- goto Syntax_Error;
- }
-
- decoder->zone--;
- zone = decoder->zone;
- ip = zone->cursor;
- limit = zone->limit;
- break;
-
- default:
- Unimplemented:
- FT_ERROR(( "Unimplemented opcode: %d", ip[-1] ));
-
- if ( ip[-1] == 12 )
- FT_ERROR(( " %d", ip[0] ));
- FT_ERROR(( "\n" ));
-
- return T2_Err_Unimplemented_Feature;
- }
-
- decoder->top = args;
-
- } /* general operator processing */
-
- } /* while ip < limit */
-
- FT_TRACE4(( "..end..\n\n" ));
-
- return error;
-
- Syntax_Error:
- FT_TRACE4(( "T2_Parse_CharStrings: syntax error!" ));
- return T2_Err_Invalid_File_Format;
-
- Stack_Underflow:
- FT_TRACE4(( "T2_Parse_CharStrings: stack underflow!" ));
- return T2_Err_Too_Few_Arguments;
-
- Stack_Overflow:
- FT_TRACE4(( "T2_Parse_CharStrings: stack overflow!" ));
- return T2_Err_Stack_Overflow;
-
- Memory_Error:
- return builder->error;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/
- /********** *********/
- /********** The following code is in charge of computing *********/
- /********** the maximum advance width of the font. It *********/
- /********** quickly processes each glyph charstring to *********/
- /********** extract the value from either a `sbw' or `seac' *********/
- /********** operator. *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#if 0 /* unused until we support pure CFF fonts */
-
-
- LOCAL_FUNC
- FT_Error T2_Compute_Max_Advance( TT_Face face,
- FT_Int* max_advance )
- {
- FT_Error error = 0;
- T2_Decoder decoder;
- FT_Int glyph_index;
- CFF_Font* cff = (CFF_Font*)face->other;
-
-
- *max_advance = 0;
-
- /* Initialize load decoder */
- T2_Init_Decoder( &decoder, face, 0, 0 );
-
- decoder.builder.metrics_only = 1;
- decoder.builder.load_points = 0;
-
- /* For each glyph, parse the glyph charstring and extract */
- /* the advance width. */
- for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
- glyph_index++ )
- {
- FT_Byte* charstring;
- FT_ULong charstring_len;
-
-
- /* now get load the unscaled outline */
- error = T2_Access_Element( &cff->charstrings_index, glyph_index,
- &charstring, &charstring_len );
- if ( !error )
- {
- T2_Prepare_Decoder( &decoder, glyph_index );
- error = T2_Parse_CharStrings( &decoder, charstring, charstring_len );
-
- T2_Forget_Element( &cff->charstrings_index, &charstring );
- }
-
- /* ignore the error if one has occurred -- skip to next glyph */
- error = 0;
- }
-
- *max_advance = decoder.builder.advance.x;
-
- return T2_Err_Ok;
- }
-
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** UNHINTED GLYPH LOADER *********/
- /********** *********/
- /********** The following code is in charge of loading a *********/
- /********** single outline. It completely ignores hinting *********/
- /********** and is used when FT_LOAD_NO_HINTING is set. *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- LOCAL_FUNC
- FT_Error T2_Load_Glyph( T2_GlyphSlot glyph,
- T2_Size size,
- FT_Int glyph_index,
- FT_Int load_flags )
- {
- FT_Error error;
- T2_Decoder decoder;
- TT_Face face = (TT_Face)glyph->root.face;
- FT_Bool hinting;
- CFF_Font* cff = (CFF_Font*)face->extra.data;
-
-
- if ( load_flags & FT_LOAD_NO_RECURSE )
- load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
-
- glyph->x_scale = 0x10000L;
- glyph->y_scale = 0x10000L;
- if ( size )
- {
- glyph->x_scale = size->metrics.x_scale;
- glyph->y_scale = size->metrics.y_scale;
- }
-
- glyph->root.outline.n_points = 0;
- glyph->root.outline.n_contours = 0;
-
- hinting = ( load_flags & FT_LOAD_NO_SCALE ) == 0 &&
- ( load_flags & FT_LOAD_NO_HINTING ) == 0;
-
- glyph->root.format = ft_glyph_format_outline; /* by default */
-
- {
- FT_Byte* charstring;
- FT_ULong charstring_len;
-
-
- T2_Init_Decoder( &decoder, face, size, glyph );
-
- decoder.builder.no_recurse =
- (FT_Bool)( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 );
-
- /* now load the unscaled outline */
- error = T2_Access_Element( &cff->charstrings_index, glyph_index,
- &charstring, &charstring_len );
- if ( !error )
- {
- T2_Prepare_Decoder( &decoder, glyph_index );
- error = T2_Parse_CharStrings( &decoder, charstring, charstring_len );
-
- T2_Forget_Element( &cff->charstrings_index, &charstring );
- }
-
- /* save new glyph tables */
- T2_Done_Builder( &decoder.builder );
- }
-
- /* Now, set the metrics -- this is rather simple, as */
- /* the left side bearing is the xMin, and the top side */
- /* bearing the yMax. */
- if ( !error )
- {
- /* for composite glyphs, return only left side bearing and */
- /* advance width */
- if ( glyph->root.format == ft_glyph_format_composite )
- {
- glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x;
- glyph->root.metrics.horiAdvance = decoder.glyph_width;
- }
- else
- {
- FT_BBox cbox;
- FT_Glyph_Metrics* metrics = &glyph->root.metrics;
-
-
- /* copy the _unscaled_ advance width */
- metrics->horiAdvance = decoder.glyph_width;
-
- /* make up vertical metrics */
- metrics->vertBearingX = 0;
- metrics->vertBearingY = 0;
- metrics->vertAdvance = 0;
-
- glyph->root.format = ft_glyph_format_outline;
-
- glyph->root.outline.flags = 0;
- if ( size && size->metrics.y_ppem < 24 )
- glyph->root.outline.flags |= ft_outline_high_precision;
-
- glyph->root.outline.flags |= ft_outline_reverse_fill;
-
- if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )
- {
- /* scale the outline and the metrics */
- FT_Int n;
- FT_Outline* cur = &glyph->root.outline;
- FT_Vector* vec = cur->points;
- FT_Fixed x_scale = glyph->x_scale;
- FT_Fixed y_scale = glyph->y_scale;
-
-
- /* First of all, scale the points */
- for ( n = cur->n_points; n > 0; n--, vec++ )
- {
- vec->x = FT_MulFix( vec->x, x_scale );
- vec->y = FT_MulFix( vec->y, y_scale );
- }
-
- FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
-
- /* Then scale the metrics */
- metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
- metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
-
- metrics->vertBearingX = FT_MulFix( metrics->vertBearingX, x_scale );
- metrics->vertBearingY = FT_MulFix( metrics->vertBearingY, y_scale );
- }
-
-#if 0
- /* apply the font matrix */
- FT_Outline_Transform( &glyph->root.outline, cff->font_matrix );
-#endif
-
- /* compute the other metrics */
- FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
-
- /* grid fit the bounding box if necessary */
- if ( hinting )
- {
- cbox.xMin &= -64;
- cbox.yMin &= -64;
- cbox.xMax = ( cbox.xMax + 63 ) & -64;
- cbox.yMax = ( cbox.yMax + 63 ) & -64;
- }
-
- metrics->width = cbox.xMax - cbox.xMin;
- metrics->height = cbox.yMax - cbox.yMin;
-
- metrics->horiBearingX = cbox.xMin;
- metrics->horiBearingY = cbox.yMax;
- }
- }
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2gload.h */
-/* */
-/* OpenType Glyph Loader (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2GLOAD_H
-#define T2GLOAD_H
-
-#include <freetype/freetype.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2objs.h"
-
-#else
-
-#include <cff/t2objs.h>
-
-#endif
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
-#define T2_MAX_OPERANDS 48
-#define T2_MAX_SUBRS_CALLS 32
-
-
- /*************************************************************************/
- /* */
- /* <Structure> */
- /* T2_Builder */
- /* */
- /* <Description> */
- /* A structure used during glyph loading to store its outline. */
- /* */
- /* <Fields> */
- /* memory :: The current memory object. */
- /* */
- /* face :: The current face object. */
- /* */
- /* glyph :: The current glyph slot. */
- /* */
- /* current :: The current glyph outline. */
- /* */
- /* base :: The base glyph outline. */
- /* */
- /* max_points :: maximum points in builder outline */
- /* */
- /* max_contours :: Maximal number of contours in builder outline. */
- /* */
- /* last :: The last point position. */
- /* */
- /* scale_x :: The horizontal scale (FUnits to sub-pixels). */
- /* */
- /* scale_y :: The vertical scale (FUnits to sub-pixels). */
- /* */
- /* pos_x :: The horizontal translation (if composite glyph). */
- /* */
- /* pos_y :: The vertical translation (if composite glyph). */
- /* */
- /* left_bearing :: The left side bearing point. */
- /* */
- /* advance :: The horizontal advance vector. */
- /* */
- /* bbox :: Unused. */
- /* */
- /* path_begun :: A flag which indicates that a new path has begun. */
- /* */
- /* load_points :: If this flag is not set, no points are loaded. */
- /* */
- /* no_recurse :: Set but not used. */
- /* */
- /* error :: An error code that is only used to report memory */
- /* allocation problems. */
- /* */
- /* metrics_only :: A boolean indicating that we only want to compute */
- /* the metrics of a given glyph, not load all of its */
- /* points. */
- /* */
- typedef struct T2_Builder_
- {
- FT_Memory memory;
- TT_Face face;
- T2_GlyphSlot glyph;
- FT_GlyphLoader* loader;
- FT_Outline* base;
- FT_Outline* current;
-
- FT_Vector last;
-
- FT_Fixed scale_x;
- FT_Fixed scale_y;
-
- FT_Pos pos_x;
- FT_Pos pos_y;
-
- FT_Vector left_bearing;
- FT_Vector advance;
-
- FT_BBox bbox; /* bounding box */
- FT_Bool path_begun;
- FT_Bool load_points;
- FT_Bool no_recurse;
-
- FT_Error error; /* only used for memory errors */
- FT_Bool metrics_only;
-
- } T2_Builder;
-
-
- /* execution context charstring zone */
-
- typedef struct T2_Decoder_Zone_
- {
- FT_Byte* base;
- FT_Byte* limit;
- FT_Byte* cursor;
-
- } T2_Decoder_Zone;
-
-
- typedef struct T2_Decoder_
- {
- T2_Builder builder;
- CFF_Font* cff;
-
- FT_Fixed stack[T2_MAX_OPERANDS + 1];
- FT_Fixed* top;
-
- T2_Decoder_Zone zones[T2_MAX_SUBRS_CALLS + 1];
- T2_Decoder_Zone* zone;
-
- FT_Int flex_state;
- FT_Int num_flex_vectors;
- FT_Vector flex_vectors[7];
-
- FT_Pos glyph_width;
- FT_Pos nominal_width;
-
- FT_Bool read_width;
- FT_Int num_hints;
- FT_Fixed* buildchar;
- FT_Int len_buildchar;
-
- FT_UInt num_locals;
- FT_UInt num_globals;
-
- FT_Int locals_bias;
- FT_Int globals_bias;
-
- FT_Byte** locals;
- FT_Byte** globals;
-
- } T2_Decoder;
-
-
- LOCAL_DEF
- void T2_Init_Decoder( T2_Decoder* decoder,
- TT_Face face,
- T2_Size size,
- T2_GlyphSlot slot );
-
- LOCAL_DEF
- void T2_Prepare_Decoder( T2_Decoder* decoder,
- FT_UInt glyph_index );
-
-#if 0 /* unused until we support pure CFF fonts */
-
- /* Compute the maximum advance width of a font through quick parsing */
- LOCAL_DEF
- FT_Error T2_Compute_Max_Advance( TT_Face face,
- FT_Int* max_advance );
-
-#endif /* 0 */
-
- LOCAL_DEF
- FT_Error T2_Parse_CharStrings( T2_Decoder* decoder,
- FT_Byte* charstring_base,
- FT_Int charstring_len );
-
- LOCAL_DEF
- FT_Error T2_Load_Glyph( T2_GlyphSlot glyph,
- T2_Size size,
- FT_Int glyph_index,
- FT_Int load_flags );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* T2GLOAD_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2load.c */
-/* */
-/* TrueType glyph data/program tables loader (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/psnames.h>
-
-#include <freetype/internal/t2errors.h>
-#include <freetype/tttags.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2load.h"
-#include "t2parse.h"
-
-#else
-
-#include <cff/t2load.h>
-#include <cff/t2parse.h>
-
-#endif
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t2load
-
-
- /* read a CFF offset from memory */
- static
- FT_ULong t2_get_offset( FT_Byte* p,
- FT_Byte off_size )
- {
- FT_ULong result;
-
-
- for ( result = 0; off_size > 0; off_size-- )
- {
- result <<= 8;
- result |= *p++;
- }
-
- return result;
- }
-
-
- static
- FT_Error t2_new_cff_index( CFF_Index* index,
- FT_Stream stream,
- FT_Bool load )
- {
- FT_Error error;
- FT_Memory memory = stream->memory;
- FT_UShort count;
-
-
- MEM_Set( index, 0, sizeof ( *index ) );
-
- index->stream = stream;
- if ( !READ_UShort( count ) &&
- count > 0 )
- {
- FT_Byte* p;
- FT_Byte offsize;
- FT_ULong data_size;
- FT_ULong* poff;
-
-
- /* there is at least one element; read the offset size, */
- /* then access the offset table to compute the index's total size */
- if ( READ_Byte( offsize ) )
- goto Exit;
-
- index->stream = stream;
- index->count = count;
- index->off_size = offsize;
- data_size = (FT_ULong)( count + 1 ) * offsize;
-
- if ( ALLOC_ARRAY( index->offsets, count + 1, FT_ULong ) ||
- ACCESS_Frame( data_size ) )
- goto Exit;
-
- poff = index->offsets;
- p = (FT_Byte*)stream->cursor;
-
- for ( ; (FT_Short)count >= 0; count-- )
- {
- poff[0] = t2_get_offset( p, offsize );
- poff++;
- p += offsize;
- }
-
- FORGET_Frame();
-
- index->data_offset = FILE_Pos();
- data_size = poff[-1] - 1;
-
- if ( load )
- {
- /* load the data */
- if ( EXTRACT_Frame( data_size, index->bytes ) )
- goto Exit;
- }
- else
- {
- /* skip the data */
- (void)FILE_Skip( data_size );
- }
- }
-
- Exit:
- if ( error )
- FREE( index->offsets );
-
- return error;
- }
-
-
- static
- void t2_done_cff_index( CFF_Index* index )
- {
- if ( index->stream )
- {
- FT_Stream stream = index->stream;
- FT_Memory memory = stream->memory;
-
-
- if ( index->bytes )
- RELEASE_Frame( index->bytes );
-
- FREE( index->offsets );
- MEM_Set( index, 0, sizeof ( *index ) );
- }
- }
-
-
- static
- FT_Error t2_explicit_cff_index( CFF_Index* index,
- FT_Byte*** table )
- {
- FT_Error error = 0;
- FT_Memory memory = index->stream->memory;
- FT_UInt n, offset, old_offset;
- FT_Byte** t;
-
-
- *table = 0;
-
- if ( index->count > 0 && !ALLOC_ARRAY( t, index->count + 1, FT_Byte* ) )
- {
- old_offset = 1;
- for ( n = 0; n <= index->count; n++ )
- {
- offset = index->offsets[n];
- if ( !offset )
- offset = old_offset;
-
- t[n] = index->bytes + offset - 1;
-
- old_offset = offset;
- }
- *table = t;
- }
-
- return error;
- }
-
-
- LOCAL_FUNC
- FT_Error T2_Access_Element( CFF_Index* index,
- FT_UInt element,
- FT_Byte** pbytes,
- FT_ULong* pbyte_len )
- {
- FT_Error error = 0;
-
-
- if ( index && index->count > element )
- {
- /* compute start and end offsets */
- FT_ULong off1, off2;
-
-
- off1 = index->offsets[element];
- if ( off1 )
- {
- do
- {
- element++;
- off2 = index->offsets[element];
-
- } while ( off2 == 0 && element < index->count );
-
- if ( !off2 )
- off1 = 0;
- }
-
- /* access element */
- if ( off1 )
- {
- *pbyte_len = off2 - off1;
-
- if ( index->bytes )
- {
- /* this index was completely loaded in memory, that's easy */
- *pbytes = index->bytes + off1 - 1;
- }
- else
- {
- /* this index is still on disk/file, access it through a frame */
- FT_Stream stream = index->stream;
-
-
- if ( FILE_Seek( index->data_offset + off1 - 1 ) ||
- EXTRACT_Frame( off2 - off1, *pbytes ) )
- goto Exit;
- }
- }
- else
- {
- /* empty index element */
- *pbytes = 0;
- *pbyte_len = 0;
- }
- }
- else
- error = T2_Err_Invalid_Argument;
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- void T2_Forget_Element( CFF_Index* index,
- FT_Byte** pbytes )
- {
- if ( index->bytes == 0 )
- {
- FT_Stream stream = index->stream;
-
-
- RELEASE_Frame( *pbytes );
- }
- }
-
-
- LOCAL_FUNC
- FT_String* T2_Get_Name( CFF_Index* index,
- FT_UInt element )
- {
- FT_Memory memory = index->stream->memory;
- FT_Byte* bytes;
- FT_ULong byte_len;
- FT_Error error;
- FT_String* name = 0;
-
-
- error = T2_Access_Element( index, element, &bytes, &byte_len );
- if ( error )
- goto Exit;
-
- if ( !ALLOC( name, byte_len + 1 ) )
- {
- MEM_Copy( name, bytes, byte_len );
- name[byte_len] = 0;
- }
- T2_Forget_Element( index, &bytes );
-
- Exit:
- return name;
- }
-
-
- LOCAL_FUNC
- FT_String* T2_Get_String( CFF_Index* index,
- FT_UInt sid,
- PSNames_Interface* interface )
- {
- /* if it is not a standard string, return it */
- if ( sid > 390 )
- return T2_Get_Name( index, sid - 390 );
-
- /* that's a standard string, fetch a copy from the PSName module */
- {
- FT_String* name = 0;
- const char* adobe_name = interface->adobe_std_strings( sid );
- FT_UInt len;
-
-
- if ( adobe_name )
- {
- FT_Memory memory = index->stream->memory;
- FT_Error error;
-
-
- len = (FT_UInt)strlen( adobe_name );
- if ( !ALLOC( name, len + 1 ) )
- {
- MEM_Copy( name, adobe_name, len );
- name[len] = 0;
- }
- }
-
- return name;
- }
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** FD Select table support ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- void CFF_Done_FD_Select( CFF_FD_Select* select,
- FT_Stream stream )
- {
- if ( select->data )
- RELEASE_Frame( select->data );
-
- select->data_size = 0;
- select->format = 0;
- select->range_count = 0;
- }
-
-
- static
- FT_Error CFF_Load_FD_Select( CFF_FD_Select* select,
- FT_UInt num_glyphs,
- FT_Stream stream,
- FT_ULong offset )
- {
- FT_Error error;
- FT_Byte format;
- FT_UInt num_ranges;
-
-
- /* read format */
- if ( FILE_Seek( offset ) || READ_Byte( format ) )
- goto Exit;
-
- select->format = format;
- select->cache_count = 0; /* clear cache */
-
- switch ( format )
- {
- case 0: /* format 0, that's simple */
- select->data_size = num_glyphs;
- goto Load_Data;
-
- case 3: /* format 3, a tad more complex */
- if ( READ_UShort( num_ranges ) )
- goto Exit;
-
- select->data_size = num_ranges * 3 + 2;
-
- Load_Data:
- if ( EXTRACT_Frame( select->data_size, select->data ) )
- goto Exit;
- break;
-
- default: /* hmm... that's wrong */
- error = T2_Err_Invalid_File_Format;
- }
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- FT_Byte CFF_Get_FD( CFF_FD_Select* select,
- FT_UInt glyph_index )
- {
- FT_Byte fd = 0;
-
-
- switch ( select->format )
- {
- case 0:
- fd = select->data[glyph_index];
- break;
-
- case 3:
- /* first, compare to cache */
- if ( (FT_UInt)(glyph_index-select->cache_first) < select->cache_count )
- {
- fd = select->cache_fd;
- break;
- }
-
- /* then, lookup the ranges array */
- {
- FT_Byte* p = select->data;
- FT_Byte* p_limit = p + select->data_size;
- FT_Byte fd2;
- FT_UInt first, limit;
-
-
- first = NEXT_UShort( p );
- do
- {
- if ( glyph_index < first )
- break;
-
- fd2 = *p++;
- limit = NEXT_UShort( p );
-
- if ( glyph_index < limit )
- {
- fd = fd2;
-
- /* update cache */
- select->cache_first = first;
- select->cache_count = limit-first;
- select->cache_fd = fd2;
- break;
- }
- first = limit;
-
- } while ( p < p_limit );
- }
- break;
-
- default:
- ;
- }
-
- return fd;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** CFF font support ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Error CFF_Load_SubFont( CFF_SubFont* font,
- CFF_Index* index,
- FT_UInt font_index,
- FT_Stream stream,
- FT_ULong base_offset )
- {
- FT_Error error;
- T2_Parser parser;
- FT_Byte* dict;
- FT_ULong dict_len;
- CFF_Font_Dict* top = &font->font_dict;
- CFF_Private* priv = &font->private_dict;
-
-
- T2_Parser_Init( &parser, T2CODE_TOPDICT, &font->font_dict );
-
- /* set defaults */
- MEM_Set( top, 0, sizeof ( *top ) );
-
- top->underline_position = -100;
- top->underline_thickness = 50;
- top->charstring_type = 2;
- top->font_matrix.xx = 0x10000L;
- top->font_matrix.yy = 0x10000L;
- top->cid_count = 8720;
-
- error = T2_Access_Element( index, font_index, &dict, &dict_len ) ||
- T2_Parser_Run( &parser, dict, dict + dict_len );
-
- T2_Forget_Element( index, &dict );
-
- if ( error )
- goto Exit;
-
- /* if it is a CID font, we stop there */
- if ( top->cid_registry )
- goto Exit;
-
- /* parse the private dictionary, if any */
- if ( top->private_offset && top->private_size )
- {
- /* set defaults */
- MEM_Set( priv, 0, sizeof ( *priv ) );
-
- priv->blue_shift = 7;
- priv->blue_fuzz = 1;
- priv->lenIV = -1;
- priv->expansion_factor = (FT_Fixed)0.06 * 0x10000L;
- priv->blue_scale = (FT_Fixed)0.039625 * 0x10000L;
-
- T2_Parser_Init( &parser, T2CODE_PRIVATE, priv );
-
- if ( FILE_Seek( base_offset + font->font_dict.private_offset ) ||
- ACCESS_Frame( font->font_dict.private_size ) )
- goto Exit;
-
- error = T2_Parser_Run( &parser,
- (FT_Byte*)stream->cursor,
- (FT_Byte*)stream->limit );
- FORGET_Frame();
- if ( error )
- goto Exit;
- }
-
- /* read the local subrs, if any */
- if ( priv->local_subrs_offset )
- {
- if ( FILE_Seek( base_offset + top->private_offset +
- priv->local_subrs_offset ) )
- goto Exit;
-
- error = t2_new_cff_index( &font->local_subrs_index, stream, 1 );
- if ( error )
- goto Exit;
-
- font->num_local_subrs = font->local_subrs_index.count;
- error = t2_explicit_cff_index( &font->local_subrs_index,
- &font->local_subrs );
- }
-
- Exit:
- return error;
- }
-
-
- static
- void CFF_Done_SubFont( FT_Memory memory,
- CFF_SubFont* subfont )
- {
- if ( subfont )
- {
- t2_done_cff_index( &subfont->local_subrs_index );
- FREE( subfont->local_subrs );
- }
- }
-
-
- LOCAL_FUNC
- FT_Error T2_Load_CFF_Font( FT_Stream stream,
- FT_Int face_index,
- CFF_Font* font )
- {
- static const FT_Frame_Field cff_header_fields[] =
- {
- FT_FRAME_START( 4 ),
- FT_FRAME_BYTE( CFF_Font, version_major ),
- FT_FRAME_BYTE( CFF_Font, version_minor ),
- FT_FRAME_BYTE( CFF_Font, header_size ),
- FT_FRAME_BYTE( CFF_Font, absolute_offsize ),
- FT_FRAME_END
- };
-
- FT_Error error;
- FT_Memory memory = stream->memory;
- FT_ULong base_offset;
- CFF_Font_Dict* dict;
-
-
- MEM_Set( font, 0, sizeof ( *font ) );
- font->stream = stream;
- font->memory = memory;
- dict = &font->top_font.font_dict;
- base_offset = FILE_Pos();
-
- /* read CFF font header */
- if ( READ_Fields( cff_header_fields, font ) )
- goto Exit;
-
- /* check format */
- if ( font->version_major != 1 ||
- font->header_size < 4 ||
- font->absolute_offsize > 4 )
- {
- FT_TRACE2(( "[not a CFF font header!]\n" ));
- error = FT_Err_Unknown_File_Format;
- goto Exit;
- }
-
- /* skip the rest of the header */
- (void)FILE_Skip( font->header_size - 4 );
-
- /* read the name, top dict, string and global subrs index */
- error = t2_new_cff_index( &font->name_index, stream, 0 ) ||
- t2_new_cff_index( &font->font_dict_index, stream, 0 ) ||
- t2_new_cff_index( &font->string_index, stream, 0 ) ||
- t2_new_cff_index( &font->global_subrs_index, stream, 1 );
- if ( error )
- goto Exit;
-
- /* well, we don't really forget the `disabled' fonts... */
- font->num_faces = font->name_index.count;
- if ( face_index >= (FT_Int)font->num_faces )
- {
- FT_ERROR(( "T2_Load_CFF_Font: incorrect face index = %d\n",
- face_index ));
- error = T2_Err_Invalid_Argument;
- }
-
- /* in case of a font format check, simply exit now */
- if ( face_index < 0 )
- goto Exit;
-
- /* now, parse the top-level font dictionary */
- error = CFF_Load_SubFont( &font->top_font,
- &font->font_dict_index,
- face_index,
- stream,
- base_offset );
- if ( error )
- goto Exit;
-
- /* now, check for a CID font */
- if ( dict->cid_registry )
- {
- CFF_Index fd_index;
- CFF_SubFont* sub;
- FT_UInt index;
-
-
- /* this is a CID-keyed font, we must now allocate a table of */
- /* sub-fonts, then load each of them separately */
- if ( FILE_Seek( base_offset + dict->cid_fd_array_offset ) )
- goto Exit;
-
- error = t2_new_cff_index( &fd_index, stream, 0 );
- if ( error )
- goto Exit;
-
- if ( fd_index.count > CFF_MAX_CID_FONTS )
- {
- FT_ERROR(( "T2_Load_CFF_Font: FD array too large in CID font\n" ));
- goto Fail_CID;
- }
-
- /* allocate & read each font dict independently */
- font->num_subfonts = fd_index.count;
- if ( ALLOC_ARRAY( sub, fd_index.count, CFF_SubFont ) )
- goto Fail_CID;
-
- /* setup pointer table */
- for ( index = 0; index < fd_index.count; index++ )
- font->subfonts[index] = sub + index;
-
- /* now load each sub font independently */
- for ( index = 0; index < fd_index.count; index++ )
- {
- sub = font->subfonts[index];
- error = CFF_Load_SubFont( sub, &fd_index, index,
- stream, base_offset );
- if ( error )
- goto Fail_CID;
- }
-
- /* now load the FD Select array */
- error = CFF_Load_FD_Select( &font->fd_select,
- dict->cid_count,
- stream,
- base_offset + dict->cid_fd_select_offset );
-
- Fail_CID:
- t2_done_cff_index( &fd_index );
-
- if ( error )
- goto Exit;
- }
- else
- font->num_subfonts = 0;
-
- /* read the charstrings index now */
- if ( dict->charstrings_offset == 0 )
- {
- FT_ERROR(( "T2_Load_CFF_Font: no charstrings offset!\n" ));
- error = FT_Err_Unknown_File_Format;
- goto Exit;
- }
-
- if ( FILE_Seek( base_offset + dict->charstrings_offset ) )
- goto Exit;
-
- error = t2_new_cff_index( &font->charstrings_index, stream, 0 );
- if ( error )
- goto Exit;
-
- /* explicit the global subrs */
- font->num_global_subrs = font->global_subrs_index.count;
- font->num_glyphs = font->charstrings_index.count;
-
- error = t2_explicit_cff_index( &font->global_subrs_index,
- &font->global_subrs ) ;
-
- if ( error )
- goto Exit;
-
- /* get the font name */
- font->font_name = T2_Get_Name( &font->name_index, face_index );
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- void T2_Done_CFF_Font( CFF_Font* font )
- {
- FT_Memory memory = font->memory;
- FT_UInt index;
-
-
- t2_done_cff_index( &font->global_subrs_index );
- t2_done_cff_index( &font->string_index );
- t2_done_cff_index( &font->font_dict_index );
- t2_done_cff_index( &font->name_index );
- t2_done_cff_index( &font->charstrings_index );
-
- /* release font dictionaries */
- for ( index = 0; index < font->num_subfonts; index++ )
- CFF_Done_SubFont( memory, font->subfonts[index] );
-
- CFF_Done_SubFont( memory, &font->top_font );
-
- CFF_Done_FD_Select( &font->fd_select, font->stream );
-
- FREE( font->global_subrs );
- FREE( font->font_name );
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2load.h */
-/* */
-/* OpenType glyph data/program tables loader (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2LOAD_H
-#define T2LOAD_H
-
-#include <freetype/internal/t2types.h>
-#include <freetype/internal/psnames.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
- LOCAL_DEF
- FT_String* T2_Get_Name( CFF_Index* index,
- FT_UInt element );
-
- LOCAL_DEF
- FT_String* T2_Get_String( CFF_Index* index,
- FT_UInt sid,
- PSNames_Interface* interface );
-
- LOCAL_DEF
- FT_Error T2_Access_Element( CFF_Index* index,
- FT_UInt element,
- FT_Byte** pbytes,
- FT_ULong* pbyte_len );
-
- LOCAL_DEF
- void T2_Forget_Element( CFF_Index* index,
- FT_Byte** pbytes );
-
- LOCAL_DEF
- FT_Error T2_Load_CFF_Font( FT_Stream stream,
- FT_Int face_index,
- CFF_Font* font );
-
- LOCAL_DEF
- void T2_Done_CFF_Font( CFF_Font* font );
-
- LOCAL_DEF
- FT_Byte CFF_Get_FD( CFF_FD_Select* select,
- FT_UInt glyph_index );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* T2LOAD_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2objs.c */
-/* */
-/* OpenType objects manager (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftcalc.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/fterrors.h>
-#include <freetype/ttnameid.h>
-#include <freetype/tttags.h>
-
-#include <freetype/internal/sfnt.h>
-#include <freetype/internal/psnames.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2objs.h"
-#include "t2load.h"
-
-#else
-
-#include <cff/t2objs.h>
-#include <cff/t2load.h>
-
-#endif
-
-
-#include <freetype/internal/t2errors.h>
-
-#include <string.h> /* for strlen() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t2objs
-
-
- /*************************************************************************/
- /* */
- /* FACE FUNCTIONS */
- /* */
- /*************************************************************************/
-
- static
- FT_String* T2_StrCopy( FT_Memory memory,
- const FT_String* source )
- {
- FT_Error error;
- FT_String* result = 0;
- FT_Int len = (FT_Int)strlen( source );
-
-
- if ( !ALLOC( result, len + 1 ) )
- {
- MEM_Copy( result, source, len );
- result[len] = 0;
- }
- return result;
- }
-
-
-#if 0
-
- /* this function is used to build a Unicode charmap from the glyph names */
- /* in a file */
- static
- FT_Error CFF_Build_Unicode_Charmap( T2_Face face,
- FT_ULong base_offset,
- PSNames_Interface* psnames )
- {
- CFF_Font* font = (CFF_Font*)face->extra.data;
- FT_Memory memory = FT_FACE_MEMORY(face);
- FT_UInt n, num_glyphs = face->root.num_glyphs;
- const char** glyph_names;
- FT_Error error;
- CFF_Font_Dict* dict = &font->top_font.font_dict;
- FT_ULong charset_offset;
- FT_Byte format;
- FT_Stream stream = face->root.stream;
-
-
- charset_offset = dict->charset_offset;
- if ( !charset_offset )
- {
- FT_ERROR(( "CFF.Build_Unicode_Charmap: charset table is missing\n" ));
- error = T2_Err_Invalid_File_Format;
- goto Exit;
- }
-
- /* allocate the charmap */
- if ( ALLOC( face->charmap, ...
-
- /* seek to charset table and allocate glyph names table */
- if ( FILE_Seek( base_offset + charset_offset ) ||
- ALLOC_ARRAY( glyph_names, num_glyphs, const char* ) )
- goto Exit;
-
- /* now, read each glyph name and store it in the glyph name table */
- if ( READ_Byte( format ) )
- goto Fail;
-
- switch ( format )
- {
- case 0: /* format 0 - one SID per glyph */
- {
- const char** gname = glyph_names;
- const char** limit = gname + num_glyphs;
-
- if ( ACCESS_Frame( num_glyphs*2 ) )
- goto Fail;
-
- for ( ; gname < limit; gname++ )
- gname[0] = T2_Get_String( &font->string_index,
- GET_UShort(),
- psnames );
- FORGET_Frame();
- break;
- }
-
- case 1: /* format 1 - sequential ranges */
- case 2: /* format 2 - sequential ranges with 16-bit counts */
- {
- const char** gname = glyph_names;
- const char** limit = gname + num_glyphs;
- FT_UInt len = 3;
-
- if (format == 2)
- len++;
-
- while (gname < limit)
- {
- FT_UInt first;
- FT_UInt count;
-
- if ( ACCESS_Frame( len ) )
- goto Fail;
-
- first = GET_UShort();
- if (format == 3)
- count = GET_UShort();
- else
- count = GET_Byte();
-
- FORGET_Frame();
-
- for ( ; count > 0; count-- )
- {
- gname[0] = T2_Get_String( &font->string_index,
- first,
- psnames );
- gname++;
- first++;
- }
- }
- break;
- }
-
- default: /* unknown charset format! */
- FT_ERROR(( "CFF: unknown charset format!\n" ));
- error = T2_Err_Invalid_File_Format;
- goto Fail;
- }
-
- /* all right, the glyph names were loaded, we now need to create */
- /* the corresponding unicode charmap.. */
-
- Fail:
- for ( n = 0; n < num_glyphs; n++ )
- FREE( glyph_names[n] );
-
- FREE( glyph_names );
-
- Exit:
- return error;
- }
-
-#endif /* 0 */
-
-
- static
- FT_Encoding find_encoding( int platform_id,
- int encoding_id )
- {
- typedef struct TEncoding
- {
- int platform_id;
- int encoding_id;
- FT_Encoding encoding;
-
- } TEncoding;
-
- static
- const TEncoding tt_encodings[] =
- {
- { TT_PLATFORM_ISO, -1, ft_encoding_unicode },
-
- { TT_PLATFORM_APPLE_UNICODE, -1, ft_encoding_unicode },
-
- { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, ft_encoding_apple_roman },
-
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, ft_encoding_unicode },
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, ft_encoding_sjis },
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, ft_encoding_gb2312 },
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, ft_encoding_big5 },
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, ft_encoding_wansung },
- { TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, ft_encoding_johab }
- };
-
- const TEncoding *cur, *limit;
-
-
- cur = tt_encodings;
- limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] );
-
- for ( ; cur < limit; cur++ )
- {
- if ( cur->platform_id == platform_id )
- {
- if ( cur->encoding_id == encoding_id ||
- cur->encoding_id == -1 )
- return cur->encoding;
- }
- }
-
- return ft_encoding_none;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Init_Face */
- /* */
- /* <Description> */
- /* Initializes a given OpenType face object. */
- /* */
- /* <Input> */
- /* stream :: The source font stream. */
- /* */
- /* face_index :: The index of the font face in the resource. */
- /* */
- /* num_params :: Number of additional generic parameters. Ignored. */
- /* */
- /* params :: Additional generic parameters. Ignored. */
- /* */
- /* <InOut> */
- /* face :: The newly built face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_DEF
- FT_Error T2_Init_Face( FT_Stream stream,
- T2_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params )
- {
- FT_Error error;
- SFNT_Interface* sfnt;
- PSNames_Interface* psnames;
- FT_Bool pure_cff = 1;
- FT_Bool sfnt_format = 0;
-
-
- sfnt = (SFNT_Interface*)FT_Get_Module_Interface(
- face->root.driver->root.library, "sfnt" );
- if ( !sfnt )
- goto Bad_Format;
-
- psnames = (PSNames_Interface*)FT_Get_Module_Interface(
- face->root.driver->root.library, "psnames" );
-
- /* create input stream from resource */
- if ( FILE_Seek( 0 ) )
- goto Exit;
-
- /* check that we have a valid OpenType file */
- error = sfnt->init_face( stream, face, face_index, num_params, params );
- if ( !error )
- {
- if ( face->format_tag != 0x4F54544FL ) /* `OTTO'; OpenType/CFF font */
- {
- FT_TRACE2(( "[not a valid OpenType/CFF font]\n" ));
- goto Bad_Format;
- }
-
- /* If we are performing a simple font format check, exit immediately */
- if ( face_index < 0 )
- return T2_Err_Ok;
-
- sfnt_format = 1;
-
- /* now, the font can be either an OpenType/CFF font, or a SVG CEF */
- /* font in the later case; it doesn't have a `head' table */
- error = face->goto_table( face, TTAG_head, stream, 0 );
- if ( !error )
- {
- pure_cff = 0;
-
- /* Load font directory */
- error = sfnt->load_face( stream, face,
- face_index, num_params, params );
- if ( error )
- goto Exit;
- }
- else
- {
- /* load the `cmap' table by hand */
- error = sfnt->load_charmaps( face, stream );
- if ( error )
- goto Exit;
-
- /* XXX: for now, we don't load the GPOS table, as OpenType Layout */
- /* support will be added later to FreeType 2 as a separate module */
- }
-
- /* now, load the CFF part of the file */
- error = face->goto_table( face, TTAG_CFF, stream, 0 );
- if ( error )
- goto Exit;
- }
- else
- {
- /* rewind to start of file; we are going to load a pure-CFF font */
- (void)FILE_Seek( 0 );
- error = FT_Err_Ok;
- }
-
- /* now load and parse the CFF table in the file */
- {
- CFF_Font* cff;
- FT_Memory memory = face->root.memory;
- FT_Face root;
- FT_UInt flags;
- FT_ULong base_offset;
-
-
- if ( ALLOC( cff, sizeof ( *cff ) ) )
- goto Exit;
-
- base_offset = FILE_Pos();
-
- face->extra.data = cff;
- error = T2_Load_CFF_Font( stream, face_index, cff );
- if ( error )
- goto Exit;
-
- /* Complement the root flags with some interesting information. */
- /* Note that this is only necessary for pure CFF and CEF fonts */
-
- root = &face->root;
- if ( pure_cff )
- {
- CFF_Font_Dict* dict = &cff->top_font.font_dict;
-
-
- /* we need the `PSNames' module for pure-CFF and CEF formats */
- if ( !psnames )
- {
- FT_ERROR(( "T2_Init_Face:" ));
- FT_ERROR(( " cannot open CFF & CEF fonts\n" ));
- FT_ERROR(( " " ));
- FT_ERROR(( " without the `PSNames' module\n" ));
- goto Bad_Format;
- }
-
- /* compute number of glyphs */
- if ( dict->cid_registry )
- root->num_glyphs = dict->cid_count;
- else
- root->num_glyphs = cff->charstrings_index.count;
-
- /* set global bbox, as well as EM size */
- root->units_per_EM = (FT_UInt)FT_DivFix( 1000L << 16,
- dict->font_matrix.yy ) >> 16;
- root->bbox = dict->font_bbox;
- root->ascender = (FT_Short)root->bbox.yMax;
- root->descender = (FT_Short)root->bbox.yMin;
-
- /* retrieve font family & style name */
- root->family_name = T2_Get_Name( &cff->name_index, face_index );
- if ( dict->cid_registry )
- {
- root->style_name = T2_StrCopy( memory, "Regular" ); /* XXXX */
- }
- else
- {
- root->style_name = T2_Get_String( &cff->string_index,
- dict->weight,
- psnames );
- }
-
- /*******************************************************************/
- /* */
- /* Compute face flags. */
- /* */
- flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */
- FT_FACE_FLAG_HORIZONTAL; /* horizontal data */
-
- if ( sfnt_format )
- flags |= FT_FACE_FLAG_SFNT;
-
- /* fixed width font? */
- if ( dict->is_fixed_pitch )
- flags |= FT_FACE_FLAG_FIXED_WIDTH;
-
-/* XXXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */
-#if 0
- /* kerning available? */
- if ( face->kern_pairs )
- flags |= FT_FACE_FLAG_KERNING;
-#endif
-
- root->face_flags = flags;
-
- /*******************************************************************/
- /* */
- /* Compute style flags. */
- /* */
- flags = 0;
-
- if ( dict->italic_angle )
- flags |= FT_STYLE_FLAG_ITALIC;
-
- /* XXX: may not be correct */
- if ( cff->top_font.private_dict.force_bold )
- flags |= FT_STYLE_FLAG_BOLD;
-
- root->style_flags = flags;
-
- /* set the charmaps if any */
- if ( sfnt_format )
- {
- /*****************************************************************/
- /* */
- /* Polish the charmaps. */
- /* */
- /* Try to set the charmap encoding according to the platform & */
- /* encoding ID of each charmap. */
- /* */
- TT_CharMap charmap;
- FT_Int n;
-
-
- charmap = face->charmaps;
- root->num_charmaps = face->num_charmaps;
-
- /* allocate table of pointers */
- if ( ALLOC_ARRAY( root->charmaps, root->num_charmaps, FT_CharMap ) )
- goto Exit;
-
- for ( n = 0; n < root->num_charmaps; n++, charmap++ )
- {
- FT_Int platform = charmap->cmap.platformID;
- FT_Int encoding = charmap->cmap.platformEncodingID;
-
-
- charmap->root.face = (FT_Face)face;
- charmap->root.platform_id = platform;
- charmap->root.encoding_id = encoding;
- charmap->root.encoding = find_encoding( platform, encoding );
-
- /* now, set root->charmap with a unicode charmap */
- /* wherever available */
- if ( !root->charmap &&
- charmap->root.encoding == ft_encoding_unicode )
- root->charmap = (FT_CharMap)charmap;
-
- root->charmaps[n] = (FT_CharMap)charmap;
- }
- }
- }
- }
-
- Exit:
- return error;
-
- Bad_Format:
- error = FT_Err_Unknown_File_Format;
- goto Exit;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Done_Face */
- /* */
- /* <Description> */
- /* Finalizes a given face object. */
- /* */
- /* <Input> */
- /* face :: A pointer to the face object to destroy. */
- /* */
- LOCAL_DEF
- void T2_Done_Face( T2_Face face )
- {
- FT_Memory memory = face->root.memory;
- SFNT_Interface* sfnt = (SFNT_Interface*)face->sfnt;
-
-
- if ( sfnt )
- sfnt->done_face( face );
-
- {
- CFF_Font* cff = (CFF_Font*)face->extra.data;
-
-
- if ( cff )
- {
- T2_Done_CFF_Font( cff );
- FREE( face->extra.data );
- }
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Init_Driver */
- /* */
- /* <Description> */
- /* Initializes a given OpenType driver object. */
- /* */
- /* <Input> */
- /* driver :: A handle to the target driver object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error T2_Init_Driver( T2_Driver driver )
- {
- /* init extension registry if needed */
-
-#ifdef TT_CONFIG_OPTION_EXTEND_ENGINE
-
- return TT_Init_Extensions( driver );
-
-#else
-
- FT_UNUSED( driver );
-
- return T2_Err_Ok;
-
-#endif
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* T2_Done_Driver */
- /* */
- /* <Description> */
- /* Finalizes a given OpenType driver. */
- /* */
- /* <Input> */
- /* driver :: A handle to the target OpenType driver. */
- /* */
- LOCAL_FUNC
- void T2_Done_Driver( T2_Driver driver )
- {
- /* destroy extensions registry if needed */
-
-#ifdef TT_CONFIG_OPTION_EXTEND_ENGINE
-
- TT_Done_Extensions( driver );
-
-#else
-
- FT_UNUSED( driver );
-
-#endif
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2objs.h */
-/* */
-/* OpenType objects manager (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2OBJS_H
-#define T2OBJS_H
-
-
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/t2types.h>
-#include <freetype/internal/t2errors.h>
-#include <freetype/internal/psnames.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* T2_Driver */
- /* */
- /* <Description> */
- /* A handle to an OpenType driver object. */
- /* */
- typedef struct T2_DriverRec_* T2_Driver;
-
- typedef TT_Face T2_Face;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* T2_Size */
- /* */
- /* <Description> */
- /* A handle to an OpenType size object. */
- /* */
- typedef FT_Size T2_Size;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* T2_GlyphSlot */
- /* */
- /* <Description> */
- /* A handle to an OpenType glyph slot object. */
- /* */
- typedef struct T2_GlyphSlotRec_
- {
- FT_GlyphSlotRec root;
-
- FT_Bool hint;
- FT_Bool scaled;
-
- FT_Fixed x_scale;
- FT_Fixed y_scale;
-
- } T2_GlyphSlotRec, *T2_GlyphSlot;
-
-
-
- /*************************************************************************/
- /* */
- /* Subglyph transformation record. */
- /* */
- typedef struct T2_Transform_
- {
- FT_Fixed xx, xy; /* transformation matrix coefficients */
- FT_Fixed yx, yy;
- FT_F26Dot6 ox, oy; /* offsets */
-
- } T2_Transform;
-
-
- /* this is only used in the case of a pure CFF font with no charmap */
- typedef struct T2_CharMapRec_
- {
- TT_CharMapRec root;
- PS_Unicodes unicodes;
-
- } T2_CharMapRec, *T2_CharMap;
-
-
- /***********************************************************************/
- /* */
- /* TrueType driver class. */
- /* */
- typedef struct T2_DriverRec_
- {
- FT_DriverRec root;
-
- void* extension_component;
-
- } T2_DriverRec;
-
-
- /*************************************************************************/
- /* */
- /* Face functions */
- /* */
- LOCAL_DEF
- FT_Error T2_Init_Face( FT_Stream stream,
- T2_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params );
-
- LOCAL_DEF
- void T2_Done_Face( T2_Face face );
-
-
- /*************************************************************************/
- /* */
- /* Driver functions */
- /* */
- LOCAL_DEF
- FT_Error T2_Init_Driver( T2_Driver driver );
-
- LOCAL_DEF
- void T2_Done_Driver( T2_Driver driver );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* T2OBJS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2parse.c */
-/* */
-/* OpenType parser (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2parse.h"
-
-#else
-
-#include <cff/t2parse.h>
-
-#endif
-
-
-#include <freetype/internal/t2errors.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_t2parse
-
-
-#define T2_Err_Stack_Underflow FT_Err_Invalid_Argument
-#define T2_Err_Syntax_Error FT_Err_Invalid_Argument
-
-
- enum
- {
- t2_kind_none = 0,
- t2_kind_num,
- t2_kind_fixed,
- t2_kind_string,
- t2_kind_bool,
- t2_kind_delta,
- t2_kind_callback,
-
- t2_kind_max /* do not remove */
- };
-
-
- /* now generate handlers for the most simple fields */
- typedef FT_Error (*T2_Field_Reader)( T2_Parser* parser );
-
- typedef struct T2_Field_Handler_
- {
- int kind;
- int code;
- FT_UInt offset;
- FT_Byte size;
- T2_Field_Reader reader;
- FT_UInt array_max;
- FT_UInt count_offset;
-
- } T2_Field_Handler;
-
-
- LOCAL_FUNC
- void T2_Parser_Init( T2_Parser* parser,
- FT_UInt code,
- void* object )
- {
- MEM_Set( parser, 0, sizeof ( *parser ) );
-
- parser->top = parser->stack;
- parser->object_code = code;
- parser->object = object;
- }
-
-
- /* reads an integer */
- static
- FT_Long parse_t2_integer( FT_Byte* start,
- FT_Byte* limit )
- {
- FT_Byte* p = start;
- FT_Int v = *p++;
- FT_Long val = 0;
-
-
- if ( v == 28 )
- {
- if ( p + 2 > limit )
- goto Bad;
-
- val = (FT_Short)( ( (FT_Int)p[0] << 8 ) | p[1] );
- p += 2;
- }
- else if ( v == 29 )
- {
- if ( p + 4 > limit )
- goto Bad;
-
- val = ( (FT_Long)p[0] << 24 ) |
- ( (FT_Long)p[1] << 16 ) |
- ( (FT_Long)p[2] << 8 ) |
- p[3];
- p += 4;
- }
- else if ( v < 247 )
- {
- val = v - 139;
- }
- else if ( v < 251 )
- {
- if ( p + 1 > limit )
- goto Bad;
-
- val = ( v - 247 ) * 256 + p[0] + 108;
- p++;
- }
- else
- {
- if ( p + 1 > limit )
- goto Bad;
-
- val = -( v - 251 ) * 256 - p[0] - 108;
- p++;
- }
-
- Exit:
- return val;
-
- Bad:
- val = 0;
- goto Exit;
- }
-
-
- /* read a real */
- static
- FT_Fixed parse_t2_real( FT_Byte* start,
- FT_Byte* limit,
- FT_Int power_ten )
- {
- FT_Byte* p = start;
- FT_Long num, divider, result, exp;
- FT_Int sign = 0, exp_sign = 0;
- FT_Byte nib;
- FT_Byte phase;
-
-
- result = 0;
- num = 0;
- divider = 1;
-
- /* first of all, read the integer part */
- phase = 4;
- p--;
-
- for (;;)
- {
- /* read one nibble at a time */
- if ( phase && ++p >= limit )
- goto Bad;
-
- nib = ( p[0] >> phase ) & 0xF;
- phase = 4 - phase;
-
- if ( nib == 0xE )
- sign = 1;
- else if ( nib > 9 )
- break;
- else
- result = result * 10 + nib;
- }
-
- /* read decimal part, if any */
- if ( nib == 0xa )
- for (;;)
- {
- /* read one nibble at a time */
- if ( !phase && ++p >= limit )
- goto Bad;
-
- phase = 4 - phase;
- nib = ( p[0] >> phase ) & 0xF;
-
- if ( nib >= 10 )
- break;
-
- if (divider < 10000000L)
- {
- num = num * 10 + nib;
- divider *= 10;
- }
- }
-
- /* read exponent, if any */
- if ( nib == 12 )
- {
- exp_sign = 1;
- nib = 11;
- }
-
- if ( nib == 11 )
- {
- exp = 0;
-
- for (;;)
- {
- /* read one nibble at a time */
- if ( !phase && ++p >= limit )
- goto Bad;
-
- phase = 4 - phase;
- nib = ( p[0] >> phase ) & 0xF;
-
- if ( nib >= 10 )
- break;
-
- exp = exp * 10 + nib;
- }
-
- if ( exp_sign )
- exp = -exp;
-
- power_ten += exp;
- }
-
- /* raise to power of ten if needed */
- while ( power_ten > 0 )
- {
- result = result * 10;
- num = num * 10;
-
- power_ten--;
- }
-
- while ( power_ten < 0 )
- {
- result = result / 10;
- divider = divider * 10;
-
- power_ten++;
- }
-
- if ( num )
- result += FT_DivFix( num, divider );
-
- if ( sign )
- result = -result;
-
- Exit:
- return result;
-
- Bad:
- result = 0;
- goto Exit;
- }
-
-
- /* read a number, either integer or real */
- static
- FT_Long t2_parse_num( FT_Byte** d )
- {
- return ( **d == 30 ? ( parse_t2_real( d[0], d[1], 0 ) >> 16 )
- : parse_t2_integer( d[0], d[1] ) );
- }
-
-
- /* reads a floating point number, either integer or real */
- static
- FT_Fixed t2_parse_fixed( FT_Byte** d )
- {
- return ( **d == 30 ? parse_t2_real( d[0], d[1], 0 )
- : parse_t2_integer( d[0], d[1] ) << 16 );
- }
-
-
- static
- FT_Error parse_font_matrix( T2_Parser* parser )
- {
- CFF_Font_Dict* dict = (CFF_Font_Dict*)parser->object;
- FT_Matrix* matrix = &dict->font_matrix;
- FT_Byte** data = parser->stack;
- FT_Error error;
-
-
- error = T2_Err_Stack_Underflow;
-
- if ( parser->top >= parser->stack + 4 )
- {
- matrix->xx = t2_parse_fixed( data++ );
- matrix->yx = t2_parse_fixed( data++ );
- matrix->xy = t2_parse_fixed( data++ );
- matrix->yy = t2_parse_fixed( data );
- error = T2_Err_Ok;
- }
-
- return error;
- }
-
-
- static
- FT_Error parse_font_bbox( T2_Parser* parser )
- {
- CFF_Font_Dict* dict = (CFF_Font_Dict*)parser->object;
- FT_BBox* bbox = &dict->font_bbox;
- FT_Byte** data = parser->stack;
- FT_Error error;
-
-
- error = T2_Err_Stack_Underflow;
-
- if ( parser->top >= parser->stack + 4 )
- {
- bbox->xMin = t2_parse_num( data++ );
- bbox->yMin = t2_parse_num( data++ );
- bbox->xMax = t2_parse_num( data++ );
- bbox->yMax = t2_parse_num( data );
- error = T2_Err_Ok;
- }
-
- return error;
- }
-
-
- static
- FT_Error parse_private_dict( T2_Parser* parser )
- {
- CFF_Font_Dict* dict = (CFF_Font_Dict*)parser->object;
- FT_Byte** data = parser->stack;
- FT_Error error;
-
-
- error = T2_Err_Stack_Underflow;
-
- if ( parser->top >= parser->stack + 2 )
- {
- dict->private_size = t2_parse_num( data++ );
- dict->private_offset = t2_parse_num( data );
- error = T2_Err_Ok;
- }
-
- return error;
- }
-
-
- static
- FT_Error parse_cid_ros( T2_Parser* parser )
- {
- CFF_Font_Dict* dict = (CFF_Font_Dict*)parser->object;
- FT_Byte** data = parser->stack;
- FT_Error error;
-
-
- error = T2_Err_Stack_Underflow;
-
- if ( parser->top >= parser->stack + 3 )
- {
- dict->cid_registry = (FT_UInt)t2_parse_num( data++ );
- dict->cid_ordering = (FT_UInt)t2_parse_num( data++ );
- dict->cid_supplement = (FT_ULong)t2_parse_num( data );
- error = T2_Err_Ok;
- }
-
- return error;
- }
-
-
-#define T2_FIELD_NUM( code, name ) \
- T2_FIELD( code, name, t2_kind_num )
-#define T2_FIELD_FIXED( code, name ) \
- T2_FIELD( code, name, t2_kind_fixed )
-#define T2_FIELD_STRING( code, name ) \
- T2_FIELD( code, name, t2_kind_string )
-#define T2_FIELD_BOOL( code, name ) \
- T2_FIELD( code, name, t2_kind_bool )
-#define T2_FIELD_DELTA( code, name,max ) \
- T2_FIELD( code, name, t2_kind_delta )
-
-#define T2_REF( s, f ) ( ((s*)0)->f )
-
-#define T2_FIELD_CALLBACK( code, name ) \
- { \
- t2_kind_callback, \
- code | T2CODE, \
- 0, 0, \
- parse_ ## name, \
- 0, 0 \
- },
-
-#undef T2_FIELD
-#define T2_FIELD( code, name, kind ) \
- { \
- kind, \
- code | T2CODE, \
- (FT_UInt)(char*)&T2_REF( T2TYPE, name ), \
- sizeof( T2_REF( T2TYPE, name ) ), \
- 0, 0, 0 \
- },
-
-#undef T2_FIELD_DELTA
-#define T2_FIELD_DELTA( code, name, max ) \
- { \
- t2_kind_delta, \
- code | T2CODE, \
- (FT_UInt)(char*)&T2_REF( T2TYPE, name ), \
- sizeof( T2_REF( T2TYPE, name )[0] ), \
- 0, \
- max, \
- (FT_UInt)(char*)&T2_REF( T2TYPE, num_ ## name ) \
- },
-
-#define T2CODE_TOPDICT 0x1000
-#define T2CODE_PRIVATE 0x2000
-
- static const T2_Field_Handler t2_field_handlers[] =
- {
-
-#ifdef FT_FLAT_COMPILE
-
-#include "t2tokens.h"
-
-#else
-
-#include <cff/t2tokens.h>
-
-#endif
-
- { 0, 0, 0, 0, 0, 0, 0 }
- };
-
-
- LOCAL_FUNC
- FT_Error T2_Parser_Run( T2_Parser* parser,
- FT_Byte* start,
- FT_Byte* limit )
- {
- FT_Byte* p = start;
- FT_Error error = T2_Err_Ok;
-
-
- parser->top = parser->stack;
- parser->start = start;
- parser->limit = limit;
- parser->cursor = start;
-
- while ( p < limit )
- {
- FT_Byte v = *p;
-
-
- if ( v >= 27 && v != 31 )
- {
- /* it's a number; we will push its position on the stack */
- if ( parser->top - parser->stack >= T2_MAX_STACK_DEPTH )
- goto Stack_Overflow;
-
- *parser->top ++ = p;
-
- /* now, skip it */
- if ( v == 30 )
- {
- /* skip real number */
- for (;;)
- {
- if ( p >= limit )
- goto Syntax_Error;
- v = p[0] >> 4;
- if ( v == 15 )
- break;
- v = p[0] & 0xF;
- if ( v == 15 )
- break;
- p++;
- }
- p++;
- }
- else if ( v == 28 )
- p += 2;
- else if ( v == 29 )
- p += 4;
- else if ( v > 246 )
- p += 1;
- }
- else
- {
- /* This is not a number, hence it's an operator. Compute its code */
- /* and look for it in our current list. */
-
- FT_UInt code;
- FT_UInt num_args = (FT_UInt)
- ( parser->top - parser->stack );
- const T2_Field_Handler* field;
-
-
- /* first of all, a trivial check */
- if ( num_args < 1 )
- goto Stack_Underflow;
-
- *parser->top = p;
- code = v;
- if ( v == 12 )
- {
- /* two byte operator */
- p++;
- code = 0x100 | p[0];
- }
- code = code | parser->object_code;
-
- for ( field = t2_field_handlers; field->kind; field++ )
- {
- if ( field->code == (FT_Int)code )
- {
- /* we found our field's handler; read it */
- FT_Long val;
- FT_Byte* q = (FT_Byte*)parser->object + field->offset;
-
-
- switch ( field->kind )
- {
- case t2_kind_bool:
- case t2_kind_string:
- case t2_kind_num:
- val = t2_parse_num( parser->stack );
- goto Store_Number;
-
- case t2_kind_fixed:
- val = t2_parse_fixed( parser->stack );
-
- Store_Number:
- switch ( field->size )
- {
- case 1:
- *(FT_Byte*)q = (FT_Byte)val;
- break;
-
- case 2:
- *(FT_Short*)q = (FT_Short)val;
- break;
-
- case 4:
- *(FT_Int32*)q = (FT_Int)val;
- break;
-
- default: /* for 64-bit systems where long is 8 bytes */
- *(FT_Long*)q = val;
- }
- break;
-
- case t2_kind_delta:
- {
- FT_Byte* qcount = (FT_Byte*)parser->object +
- field->count_offset;
-
- FT_Long val;
- FT_Byte** data = parser->stack;
-
-
- if ( num_args > field->array_max )
- num_args = field->array_max;
-
- /* store count */
- *qcount = (FT_Byte)num_args;
-
- val = 0;
- while ( num_args > 0 )
- {
- val += t2_parse_num( data++ );
- switch ( field->size )
- {
- case 1:
- *(FT_Byte*)q = (FT_Byte)val;
- break;
-
- case 2:
- *(FT_Short*)q = (FT_Short)val;
- break;
-
- case 4:
- *(FT_Int32*)q = (FT_Int)val;
- break;
-
- default: /* for 64-bit systems */
- *(FT_Long*)q = val;
- }
-
- q += field->size;
- num_args--;
- }
- }
- break;
-
- default: /* callback */
- error = field->reader( parser );
- if ( error )
- goto Exit;
- }
- goto Found;
- }
- }
-
- /* this is an unknown operator, or it is unsupported; */
- /* we will ignore it for now. */
-
- Found:
- /* clear stack */
- parser->top = parser->stack;
- }
- p++;
- }
-
- Exit:
- return error;
-
- Stack_Overflow:
- error = T2_Err_Invalid_Argument;
- goto Exit;
-
- Stack_Underflow:
- error = T2_Err_Invalid_Argument;
- goto Exit;
-
- Syntax_Error:
- error = T2_Err_Invalid_Argument;
- goto Exit;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2parse.h */
-/* */
-/* OpenType parser (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2PARSE_H
-#define T2PARSE_H
-
-#include <freetype/internal/t2types.h>
-#include <freetype/internal/ftobjs.h>
-
-#define T2_MAX_STACK_DEPTH 96
-
-#define T2CODE_TOPDICT 0x1000
-#define T2CODE_PRIVATE 0x2000
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- typedef struct T2_Parser_
- {
- FT_Byte* start;
- FT_Byte* limit;
- FT_Byte* cursor;
-
- FT_Byte* stack[T2_MAX_STACK_DEPTH + 1];
- FT_Byte** top;
-
- FT_UInt object_code;
- void* object;
-
- } T2_Parser;
-
-
- LOCAL_DEF
- void T2_Parser_Init( T2_Parser* parser,
- FT_UInt code,
- void* object );
-
- LOCAL_DEF
- FT_Error T2_Parser_Run( T2_Parser* parser,
- FT_Byte* start,
- FT_Byte* limit );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* T2PARSE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2tokens.h */
-/* */
-/* OpenType token definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#undef T2TYPE
-#undef T2CODE
-#define T2TYPE CFF_Font_Dict
-#define T2CODE T2CODE_TOPDICT
-
- T2_FIELD_STRING ( 0, version )
- T2_FIELD_STRING ( 1, notice )
- T2_FIELD_STRING ( 0x100, copyright )
- T2_FIELD_STRING ( 2, full_name )
- T2_FIELD_STRING ( 3, family_name )
- T2_FIELD_STRING ( 4, weight )
- T2_FIELD_BOOL ( 0x101, is_fixed_pitch )
- T2_FIELD_FIXED ( 0x102, italic_angle )
- T2_FIELD_NUM ( 0x103, underline_position )
- T2_FIELD_NUM ( 0x104, underline_thickness )
- T2_FIELD_NUM ( 0x105, paint_type )
- T2_FIELD_NUM ( 0x106, charstring_type )
- T2_FIELD_CALLBACK( 0x107, font_matrix )
- T2_FIELD_NUM ( 13, unique_id )
- T2_FIELD_CALLBACK( 5, font_bbox )
- T2_FIELD_NUM ( 0x108, stroke_width )
- T2_FIELD_NUM ( 15, charset_offset )
- T2_FIELD_NUM ( 16, encoding_offset )
- T2_FIELD_NUM ( 17, charstrings_offset )
- T2_FIELD_CALLBACK( 18, private_dict )
- T2_FIELD_NUM ( 0x114, synthetic_base )
- T2_FIELD_STRING ( 0x115, postscript )
- T2_FIELD_STRING ( 0x116, base_font_name )
-
-#if 0
- T2_FIELD_DELTA ( 0x117, base_font_blend, 16 )
- T2_FIELD_CALLBACK( 0x118, multiple_master )
- T2_FIELD_CALLBACK( 0x119, blend_axit_types )
-#endif
-
- T2_FIELD_CALLBACK( 0x11E, cid_ros )
- T2_FIELD_NUM ( 0x11F, cid_font_version )
- T2_FIELD_NUM ( 0x120, cid_font_revision )
- T2_FIELD_NUM ( 0x121, cid_font_type )
- T2_FIELD_NUM ( 0x122, cid_count )
- T2_FIELD_NUM ( 0x123, cid_uid_base )
- T2_FIELD_NUM ( 0x124, cid_fd_array_offset )
- T2_FIELD_NUM ( 0x125, cid_fd_select_offset )
- T2_FIELD_STRING ( 0x126, cid_font_name )
-
-#if 0
- T2_FIELD_NUM ( 0x127, chameleon )
-#endif
-
-
-#undef T2TYPE
-#undef T2CODE
-#define T2TYPE CFF_Private
-#define T2CODE T2CODE_PRIVATE
-
- T2_FIELD_DELTA( 6, blue_values, 14 )
- T2_FIELD_DELTA( 7, other_blues, 10 )
- T2_FIELD_DELTA( 8, family_blues, 14 )
- T2_FIELD_DELTA( 9, family_other_blues, 10 )
- T2_FIELD_FIXED( 0x109, blue_scale )
- T2_FIELD_NUM ( 0x10A, blue_shift )
- T2_FIELD_NUM ( 0x10B, blue_fuzz )
- T2_FIELD_NUM ( 10, standard_width )
- T2_FIELD_NUM ( 11, standard_height )
- T2_FIELD_DELTA( 0x10C, snap_widths, 13 )
- T2_FIELD_DELTA( 0x10D, snap_heights, 13 )
- T2_FIELD_BOOL ( 0x10E, force_bold )
- T2_FIELD_FIXED( 0x10F, force_bold_threshold )
- T2_FIELD_NUM ( 0x110, lenIV )
- T2_FIELD_NUM ( 0x111, language_group )
- T2_FIELD_FIXED( 0x112, expansion_factor )
- T2_FIELD_NUM ( 0x113, initial_random_seed )
- T2_FIELD_NUM ( 19, local_subrs_offset )
- T2_FIELD_NUM ( 20, default_width )
- T2_FIELD_NUM ( 21, nominal_width )
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidafm.c */
-/* */
-/* AFM support for CID-keyed fonts (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidafm.h"
-
-#else
-
-#include <cid/cidafm.h>
-
-#endif
-
-
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/t1types.h>
-#include <freetype/internal/t1errors.h>
-
-#include <stdlib.h> /* for qsort() */
-#include <string.h> /* for strcmp() */
-#include <ctype.h> /* for isalnum() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_cidafm
-
-
- LOCAL_FUNC
- void CID_Done_AFM( FT_Memory memory,
- CID_AFM* afm )
- {
- FREE( afm->kern_pairs );
- afm->num_pairs = 0;
- }
-
-
-#undef IS_KERN_PAIR
-#define IS_KERN_PAIR( p ) ( p[0] == 'K' && p[1] == 'P' )
-
-#define IS_ALPHANUM( c ) ( isalnum( c ) || \
- c == '_' || \
- c == '.' )
-
-
- /* read a glyph name and return the equivalent glyph index */
- static
- FT_UInt afm_atoindex( FT_Byte** start,
- FT_Byte* limit,
- T1_Font* type1 )
- {
- FT_Byte* p = *start;
- FT_Int len;
- FT_UInt result = 0;
- char temp[64];
-
-
- /* skip whitespace */
- while ( ( *p == ' ' || *p == '\t' || *p == ':' || *p == ';' ) &&
- p < limit )
- p++;
- *start = p;
-
- /* now, read glyph name */
- while ( IS_ALPHANUM( *p ) && p < limit )
- p++;
-
- len = p - *start;
-
- if ( len > 0 && len < 64 )
- {
- FT_Int n;
-
-
- /* copy glyph name to intermediate array */
- MEM_Copy( temp, *start, len );
- temp[len] = 0;
-
- /* lookup glyph name in face array */
- for ( n = 0; n < type1->num_glyphs; n++ )
- {
- char* gname = (char*)type1->glyph_names[n];
-
-
- if ( gname && gname[0] == temp[0] && strcmp( gname, temp ) == 0 )
- {
- result = n;
- break;
- }
- }
- }
- *start = p;
- return result;
- }
-
-
- /* read an integer */
- static
- int afm_atoi( FT_Byte** start,
- FT_Byte* limit )
- {
- FT_Byte* p = *start;
- int sum = 0;
- int sign = 1;
-
-
- /* skip everything that is not a number */
- while ( p < limit && !isdigit( *p ) )
- {
- sign = 1;
- if ( *p == '-' )
- sign = -1;
-
- p++;
- }
-
- while ( p < limit && isdigit( *p ) )
- {
- sum = sum * 10 + ( *p - '0' );
- p++;
- }
- *start = p;
-
- return sum * sign;
- }
-
-
-#undef KERN_INDEX
-#define KERN_INDEX( g1, g2 ) ( ( (FT_ULong)g1 << 16 ) | g2 )
-
-
- /* compare two kerning pairs */
- static
- int compare_kern_pairs( const void* a,
- const void* b )
- {
- CID_Kern_Pair* pair1 = (CID_Kern_Pair*)a;
- CID_Kern_Pair* pair2 = (CID_Kern_Pair*)b;
-
- FT_ULong index1 = KERN_INDEX( pair1->glyph1, pair1->glyph2 );
- FT_ULong index2 = KERN_INDEX( pair2->glyph1, pair2->glyph2 );
-
-
- return ( index1 - index2 );
- }
-
-
- /* parse an AFM file -- for now, only read the kerning pairs */
- LOCAL_FUNC
- FT_Error CID_Read_AFM( FT_Face cid_face,
- FT_Stream stream )
- {
- FT_Error error;
- FT_Memory memory = stream->memory;
- FT_Byte* start;
- FT_Byte* limit;
- FT_Byte* p;
- FT_Int count = 0;
- CID_Kern_Pair* pair;
- T1_Font* type1 = &((T1_Face)t1_face)->type1;
- CID_AFM* afm = 0;
-
-
- if ( ACCESS_Frame( stream->size ) )
- return error;
-
- start = (FT_Byte*)stream->cursor;
- limit = (FT_Byte*)stream->limit;
- p = start;
-
- /* we are now going to count the occurrences of `KP' or `KPX' in */
- /* the AFM file. */
- count = 0;
- for ( p = start; p < limit - 3; p++ )
- {
- if ( IS_KERN_PAIR( p ) )
- count++;
- }
-
- /* Actually, kerning pairs are simply optional! */
- if ( count == 0 )
- goto Exit;
-
- /* allocate the pairs */
- if ( ALLOC( afm, sizeof ( *afm ) ) ||
- ALLOC_ARRAY( afm->kern_pairs, count, CID_Kern_Pair ) )
- goto Exit;
-
- /* now, read each kern pair */
- pair = afm->kern_pairs;
- afm->num_pairs = count;
-
- /* save in face object */
- ((T1_Face)t1_face)->afm_data = afm;
-
- for ( p = start; p < limit - 3; p++ )
- {
- if ( IS_KERN_PAIR( p ) )
- {
- FT_Byte* q;
-
-
- /* skip keyword (`KP' or `KPX') */
- q = p + 2;
- if ( *q == 'X' )
- q++;
-
- pair->glyph1 = afm_atoindex( &q, limit, type1 );
- pair->glyph2 = afm_atoindex( &q, limit, type1 );
- pair->kerning.x = afm_atoi( &q, limit );
-
- pair->kerning.y = 0;
- if ( p[2] != 'X' )
- pair->kerning.y = afm_atoi( &q, limit );
-
- pair++;
- }
- }
-
- /* now, sort the kern pairs according to their glyph indices */
- qsort( afm->kern_pairs, count, sizeof ( CID_Kern_Pair ),
- compare_kern_pairs );
-
- Exit:
- if ( error )
- FREE( afm );
-
- FORGET_Frame();
-
- return error;
- }
-
-
- /* find the kerning for a given glyph pair */
- LOCAL_FUNC
- void CID_Get_Kerning( CID_AFM* afm,
- FT_UInt glyph1,
- FT_UInt glyph2,
- FT_Vector* kerning )
- {
- CID_Kern_Pair *min, *mid, *max;
- FT_ULong index = KERN_INDEX( glyph1, glyph2 );
-
-
- /* simple binary search */
- min = afm->kern_pairs;
- max = min + afm->num_pairs - 1;
-
- while ( min <= max )
- {
- FT_ULong midi;
-
-
- mid = min + ( max - min ) / 2;
- midi = KERN_INDEX( mid->glyph1, mid->glyph2 );
- if ( midi == index )
- {
- *kerning = mid->kerning;
- return;
- }
-
- if ( midi < index )
- min = mid + 1;
- else
- max = mid - 1;
- }
-
- kerning->x = 0;
- kerning->y = 0;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidafm.h */
-/* */
-/* AFM support for CID-keyed fonts (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDAFM_H
-#define CIDAFM_H
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidobjs.h"
-
-#else
-
-#include <cid/cidobjs.h>
-
-#endif
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- typedef struct CID_Kern_Pair_
- {
- FT_UInt glyph1;
- FT_UInt glyph2;
- FT_Vector kerning;
-
- } CID_Kern_Pair;
-
- typedef struct CID_AFM_
- {
- FT_UInt num_pairs;
- CID_Kern_Pair* kern_pairs;
-
- } CID_AFM;
-
-
- LOCAL_DEF
- FT_Error CID_Read_AFM( FT_Face cid_face,
- FT_Stream stream );
-
- LOCAL_DEF
- void CID_Done_AFM( FT_Memory memory,
- CID_AFM* afm );
-
- LOCAL_DEF
- void CID_Get_Kerning( CID_AFM* afm,
- FT_UInt glyph1,
- FT_UInt glyph2,
- FT_Vector* kerning );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* CIDAFM_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidgload.c */
-/* */
-/* CID-keyed Type1 Glyph Loader (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidload.h"
-#include "cidgload.h"
-
-#else
-
-#include <cid/cidload.h>
-#include <cid/cidgload.h>
-
-#endif
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/ftoutln.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_cidgload
-
-
- /* forward */
- static
- FT_Error cid_load_glyph( CID_Decoder* decoder,
- FT_UInt glyph_index );
-
-
- typedef enum CID_Operator_
- {
- op_none = 0,
-
- op_endchar,
- op_hsbw,
- op_seac,
- op_sbw,
- op_closepath,
-
- op_hlineto,
- op_hmoveto,
- op_hvcurveto,
- op_rlineto,
- op_rmoveto,
- op_rrcurveto,
- op_vhcurveto,
- op_vlineto,
- op_vmoveto,
-
- op_dotsection,
-
- op_hstem,
- op_hstem3,
- op_vstem,
- op_vstem3,
-
- op_div,
- op_callothersubr,
- op_callsubr,
- op_pop,
- op_return,
- op_setcurrentpoint,
-
- op_max /* never remove this one */
-
- } CID_Operator;
-
- static
- const FT_Int t1_args_count[op_max] =
- {
- 0, /* none */
- 0, /* endchar */
- 2, /* hsbw */
- 5, /* seac */
- 4, /* sbw */
- 0, /* closepath */
-
- 1, /* hlineto */
- 1, /* hmoveto */
- 4, /* hvcurveto */
- 2, /* rlineto */
- 2, /* rmoveto */
- 6, /* rrcurveto */
- 4, /* vhcurveto */
- 1, /* vlineto */
- 1, /* vmoveto */
-
- 0, /* dotsection */
-
- 2, /* hstem */
- 6, /* hstem3 */
- 2, /* vstem */
- 6, /* vstem3 */
-
- 2, /* div */
- -1, /* callothersubr */
- 1, /* callsubr */
- 0, /* pop */
- 0, /* return */
- 2 /* setcurrentpoint */
- };
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** GENERIC CHARSTRING PARSING *********/
- /********** *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Init_Builder */
- /* */
- /* <Description> */
- /* Initializes a given glyph builder. */
- /* */
- /* <InOut> */
- /* builder :: A pointer to the glyph builder to initialize. */
- /* */
- /* <Input> */
- /* face :: The current face object. */
- /* */
- /* size :: The current size object. */
- /* */
- /* glyph :: The current glyph object. */
- /* */
- LOCAL_FUNC
- void CID_Init_Builder( CID_Builder* builder,
- CID_Face face,
- CID_Size size,
- CID_GlyphSlot glyph )
- {
- builder->path_begun = 0;
- builder->load_points = 1;
-
- builder->face = face;
- builder->glyph = glyph;
- builder->memory = face->root.memory;
-
- if ( glyph )
- {
- FT_GlyphLoader* loader = glyph->root.loader;
-
-
- builder->loader = loader;
- builder->base = &loader->base.outline;
- builder->current = &loader->current.outline;
-
- FT_GlyphLoader_Rewind( loader );
- }
-
- if ( size )
- {
- builder->scale_x = size->root.metrics.x_scale;
- builder->scale_y = size->root.metrics.y_scale;
- }
-
- builder->pos_x = 0;
- builder->pos_y = 0;
-
- builder->left_bearing.x = 0;
- builder->left_bearing.y = 0;
- builder->advance.x = 0;
- builder->advance.y = 0;
-
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Done_Builder */
- /* */
- /* <Description> */
- /* Finalizes a given glyph builder. Its contents can still be used */
- /* after the call, but the function saves important information */
- /* within the corresponding glyph slot. */
- /* */
- /* <Input> */
- /* builder :: A pointer to the glyph builder to finalize. */
- /* */
- LOCAL_FUNC
- void CID_Done_Builder( CID_Builder* builder )
- {
- CID_GlyphSlot glyph = builder->glyph;
-
-
- if ( glyph )
- glyph->root.outline = *builder->base;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Init_Decoder */
- /* */
- /* <Description> */
- /* Initializes a given glyph decoder. */
- /* */
- /* <InOut> */
- /* decoder :: A pointer to the glyph builder to initialize. */
- /* */
- LOCAL_FUNC
- void CID_Init_Decoder( CID_Decoder* decoder )
- {
- MEM_Set( decoder, 0, sizeof ( *decoder ) );
-
- decoder->font_matrix.xx = 0x10000L;
- decoder->font_matrix.yy = 0x10000L;
- }
-
-
- /* check that there is enough space for `count' more points */
- static
- FT_Error check_points( CID_Builder* builder,
- FT_Int count )
- {
- return FT_GlyphLoader_Check_Points( builder->loader, count, 0 );
- }
-
-
- /* add a new point, but do not check space */
- static
- void add_point( CID_Builder* builder,
- FT_Pos x,
- FT_Pos y,
- FT_Byte flag )
- {
- FT_Outline* outline = builder->current;
-
-
- if ( builder->load_points )
- {
- FT_Vector* point = outline->points + outline->n_points;
- FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points;
-
-
- point->x = x;
- point->y = y;
- *control = flag ? FT_Curve_Tag_On : FT_Curve_Tag_Cubic;
-
- builder->last = *point;
- }
-
- outline->n_points++;
- }
-
-
- /* check space for a new on-curve point, then add it */
- static
- FT_Error add_point1( CID_Builder* builder,
- FT_Pos x,
- FT_Pos y )
- {
- FT_Error error;
-
-
- error = check_points( builder, 1 );
- if ( !error )
- add_point( builder, x, y, 1 );
-
- return error;
- }
-
-
- /* check room for a new contour, then add it */
- static
- FT_Error add_contour( CID_Builder* builder )
- {
- FT_Outline* outline = builder->current;
- FT_Error error;
-
-
- if ( !builder->load_points )
- {
- outline->n_contours++;
- return T1_Err_Ok;
- }
-
- error = FT_GlyphLoader_Check_Points( builder->loader, 0, 1 );
- if ( !error )
- {
- if ( outline->n_contours > 0 )
- outline->contours[outline->n_contours - 1] = outline->n_points - 1;
-
- outline->n_contours++;
- }
- return error;
- }
-
-
- /* if a path has been started, add its first on-curve point */
- static
- FT_Error start_point( CID_Builder* builder,
- FT_Pos x,
- FT_Pos y )
- {
- /* test whether we are building a new contour */
- if ( !builder->path_begun )
- {
- FT_Error error;
-
-
- builder->path_begun = 1;
- error = add_contour( builder );
- if ( error )
- return error;
- }
-
- return add_point1( builder, x, y );
- }
-
-
- /* close the current contour */
- static
- void close_contour( CID_Builder* builder )
- {
- FT_Outline* outline = builder->current;
-
-
- /* XXX: We must not include the last point in the path if it */
- /* is located on the first point. */
- if ( outline->n_points > 1 )
- {
- FT_Int first = 0;
- FT_Vector* p1 = outline->points + first;
- FT_Vector* p2 = outline->points + outline->n_points - 1;
-
-
- if ( outline->n_contours > 1 )
- {
- first = outline->contours[outline->n_contours - 2] + 1;
- p1 = outline->points + first;
- }
-
- if ( p1->x == p2->x && p1->y == p2->y )
- outline->n_points--;
- }
-
- if ( outline->n_contours > 0 )
- outline->contours[outline->n_contours - 1] = outline->n_points - 1;
- }
-
-
-#if 0
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* lookup_glyph_by_stdcharcode */
- /* */
- /* <Description> */
- /* Looks up a given glyph by its StandardEncoding charcode. Used */
- /* to implement the SEAC Type 1 operator. */
- /* */
- /* <Input> */
- /* face :: The current face object. */
- /* */
- /* charcode :: The character code to look for. */
- /* */
- /* <Return> */
- /* A glyph index in the font face. Returns -1 if the corresponding */
- /* glyph wasn't found. */
- /* */
- static
- FT_Int lookup_glyph_by_stdcharcode( CID_Face face,
- FT_Int charcode )
- {
- FT_Int n;
- const FT_String* glyph_name;
- PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
-
-
- /* check range of standard char code */
- if ( charcode < 0 || charcode > 255 )
- return -1;
-
- glyph_name = psnames->adobe_std_strings(
- psnames->adobe_std_encoding[charcode]);
-
- for ( n = 0; n < face->cid.cid_count; n++ )
- {
- FT_String* name = (FT_String*)face->type1.glyph_names[n];
-
-
- if ( name && strcmp( name, glyph_name ) == 0 )
- return n;
- }
-
- return -1;
- }
-
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* t1operator_seac */
- /* */
- /* <Description> */
- /* Implements the `seac' Type 1 operator for a Type 1 decoder. */
- /* */
- /* <Input> */
- /* decoder :: The current CID decoder. */
- /* */
- /* asb :: The accent's side bearing. */
- /* */
- /* adx :: The horizontal offset of the accent. */
- /* */
- /* ady :: The vertical offset of the accent. */
- /* */
- /* bchar :: The base character's StandardEncoding charcode. */
- /* */
- /* achar :: The accent character's StandardEncoding charcode. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- static
- FT_Error t1operator_seac( CID_Decoder* decoder,
- FT_Pos asb,
- FT_Pos adx,
- FT_Pos ady,
- FT_Int bchar,
- FT_Int achar )
- {
- FT_Error error;
- FT_Int bchar_index, achar_index, n_base_points;
- FT_Outline* base = decoder->builder.base;
- FT_Vector left_bearing, advance;
-
-
- bchar_index = bchar;
- achar_index = achar;
-
- if ( bchar_index < 0 || achar_index < 0 )
- {
- FT_ERROR(( "t1operator_seac:" ));
- FT_ERROR(( " invalid seac character code arguments\n" ));
- return T1_Err_Syntax_Error;
- }
-
- /* if we are trying to load a composite glyph, do not load the */
- /* accent character and return the array of subglyphs. */
- if ( decoder->builder.no_recurse )
- {
- FT_GlyphSlot glyph = (FT_GlyphSlot)decoder->builder.glyph;
- FT_GlyphLoader* loader = glyph->loader;
- FT_SubGlyph* subg;
-
-
- /* reallocate subglyph array if necessary */
- error = FT_GlyphLoader_Check_Subglyphs( loader, 2 );
- if ( error )
- goto Exit;
-
- subg = loader->current.subglyphs;
-
- /* subglyph 0 = base character */
- subg->index = bchar_index;
- subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES |
- FT_SUBGLYPH_FLAG_USE_MY_METRICS;
- subg->arg1 = 0;
- subg->arg2 = 0;
- subg++;
-
- /* subglyph 1 = accent character */
- subg->index = achar_index;
- subg->flags = FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES;
- subg->arg1 = adx - asb;
- subg->arg2 = ady;
-
- /* set up remaining glyph fields */
- glyph->num_subglyphs = 2;
- glyph->subglyphs = loader->current.subglyphs;
- glyph->format = ft_glyph_format_composite;
-
- loader->current.num_subglyphs = 2;
- }
-
- /* First load `bchar' in builder */
- /* now load the unscaled outline */
- if ( decoder->builder.loader )
- FT_GlyphLoader_Prepare( decoder->builder.loader );
-
- error = cid_load_glyph( decoder, bchar_index ); /* load one glyph */
- if ( error )
- goto Exit;
-
- n_base_points = base->n_points;
-
- {
- /* save the left bearing and width of the base character */
- /* as they will be erased by the next load. */
-
- left_bearing = decoder->builder.left_bearing;
- advance = decoder->builder.advance;
-
- decoder->builder.left_bearing.x = 0;
- decoder->builder.left_bearing.y = 0;
-
- /* Now load `achar' on top of */
- /* the base outline */
- error = cid_load_glyph( decoder, achar_index );
- if ( error )
- return error;
-
- /* restore the left side bearing and */
- /* advance width of the base character */
-
- decoder->builder.left_bearing = left_bearing;
- decoder->builder.advance = advance;
-
- /* Finally, move the accent */
- if ( decoder->builder.load_points )
- {
- FT_Outline dummy;
-
-
- dummy.n_points = base->n_points - n_base_points;
- dummy.points = base->points + n_base_points;
- FT_Outline_Translate( &dummy, adx - asb, ady );
- }
- }
-
- Exit:
- return error;
- }
-
-
-#define USE_ARGS( n ) do \
- { \
- top -= n; \
- if ( top < decoder->stack ) \
- goto Stack_Underflow; \
- } while ( 0 )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Parse_CharStrings */
- /* */
- /* <Description> */
- /* Parses a given CID charstrings program. */
- /* */
- /* <InOut> */
- /* decoder :: The current CID decoder. */
- /* */
- /* <Input> */
- /* charstring_base :: The base of the charstring stream. */
- /* */
- /* charstring_len :: The length in bytes of the charstring stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error CID_Parse_CharStrings( CID_Decoder* decoder,
- FT_Byte* charstring_base,
- FT_Int charstring_len )
- {
- FT_Error error;
- CID_Decoder_Zone* zone;
- FT_Byte* ip;
- FT_Byte* limit;
- CID_Builder* builder = &decoder->builder;
- FT_Outline* outline;
- FT_Pos x, y;
-
-
- /* First of all, initialize the decoder */
- decoder->top = decoder->stack;
- decoder->zone = decoder->zones;
- zone = decoder->zones;
-
- builder->path_begun = 0;
-
- zone->base = charstring_base;
- limit = zone->limit = charstring_base + charstring_len;
- ip = zone->cursor = zone->base;
-
- error = T1_Err_Ok;
- outline = builder->current;
-
- x = builder->pos_x;
- y = builder->pos_y;
-
- /* now, execute loop */
- while ( ip < limit )
- {
- FT_Int* top = decoder->top;
- CID_Operator op = op_none;
- FT_Long value = 0;
-
-
- /********************************************************************/
- /* */
- /* Decode operator or operand */
- /* */
-
- /* First of all, decompress operator or value */
- switch ( *ip++ )
- {
- case 1:
- op = op_hstem;
- break;
-
- case 3:
- op = op_vstem;
- break;
- case 4:
- op = op_vmoveto;
- break;
- case 5:
- op = op_rlineto;
- break;
- case 6:
- op = op_hlineto;
- break;
- case 7:
- op = op_vlineto;
- break;
- case 8:
- op = op_rrcurveto;
- break;
- case 9:
- op = op_closepath;
- break;
- case 10:
- op = op_callsubr;
- break;
- case 11:
- op = op_return;
- break;
-
- case 13:
- op = op_hsbw;
- break;
- case 14:
- op = op_endchar;
- break;
-
- case 21:
- op = op_rmoveto;
- break;
- case 22:
- op = op_hmoveto;
- break;
-
- case 30:
- op = op_vhcurveto;
- break;
- case 31:
- op = op_hvcurveto;
- break;
-
- case 12:
- if ( ip > limit )
- {
- FT_ERROR(( "CID_Parse_CharStrings: invalid escape (12+EOF)\n" ));
- goto Syntax_Error;
- }
-
- switch ( *ip++ )
- {
- case 0:
- op = op_dotsection;
- break;
- case 1:
- op = op_vstem3;
- break;
- case 2:
- op = op_hstem3;
- break;
- case 6:
- op = op_seac;
- break;
- case 7:
- op = op_sbw;
- break;
- case 12:
- op = op_div;
- break;
- case 16:
- op = op_callothersubr;
- break;
- case 17:
- op = op_pop;
- break;
- case 33:
- op = op_setcurrentpoint;
- break;
-
- default:
- FT_ERROR(( "CID_Parse_CharStrings: invalid escape (12+%d)\n",
- ip[-1] ));
- goto Syntax_Error;
- }
- break;
-
- case 255: /* four bytes integer */
- if ( ip + 4 > limit )
- {
- FT_ERROR(( "CID_Parse_CharStrings: unexpected EOF in integer\n" ));
- goto Syntax_Error;
- }
-
- value = ( (long)ip[0] << 24 ) |
- ( (long)ip[1] << 16 ) |
- ( (long)ip[2] << 8 ) |
- ip[3];
- ip += 4;
- break;
-
- default:
- if ( ip[-1] >= 32 )
- {
- if ( ip[-1] < 247 )
- value = (long)ip[-1] - 139;
- else
- {
- if ( ++ip > limit )
- {
- FT_ERROR(( "CID_Parse_CharStrings:" ));
- FT_ERROR(( " unexpected EOF in integer\n" ));
- goto Syntax_Error;
- }
-
- if ( ip[-2] < 251 )
- value = ( (long)( ip[-2] - 247 ) << 8 ) + ip[-1] + 108;
- else
- value = -( ( ( (long)ip[-2] - 251 ) << 8 ) + ip[-1] + 108 );
- }
- }
- else
- {
- FT_ERROR(( "CID_Parse_CharStrings: invalid byte (%d)\n",
- ip[-1] ));
- goto Syntax_Error;
- }
- }
-
- /********************************************************************/
- /* */
- /* Push value on stack, or process operator */
- /* */
- if ( op == op_none )
- {
- if ( top - decoder->stack >= T1_MAX_CHARSTRINGS_OPERANDS )
- {
- FT_ERROR(( "CID_Parse_CharStrings: Stack overflow!\n" ));
- goto Syntax_Error;
- }
-
- FT_TRACE4(( " %ld", value ));
- *top++ = value;
- decoder->top = top;
- }
- else if ( op == op_callothersubr ) /* callothersubr */
- {
- FT_TRACE4(( " callothersubr" ));
-
- if ( top - decoder->stack < 2 )
- goto Stack_Underflow;
-
- top -= 2;
- switch ( top[1] )
- {
- case 1: /* start flex feature ---------------------- */
- if ( top[0] != 0 )
- goto Unexpected_OtherSubr;
-
- decoder->flex_state = 1;
- decoder->num_flex_vectors = 0;
- if ( start_point( builder, x, y ) ||
- check_points( builder, 6 ) )
- goto Memory_Error;
- break;
-
- case 2: /* add flex vectors ------------------------ */
- {
- FT_Int index;
-
-
- if ( top[0] != 0 )
- goto Unexpected_OtherSubr;
-
- /* note that we should not add a point for index 0. */
- /* this will move our current position to the flex */
- /* point without adding any point to the outline */
- index = decoder->num_flex_vectors++;
- if ( index > 0 && index < 7 )
- add_point( builder,
- x,
- y,
- (FT_Byte)( index==3 || index==6 ) );
- }
- break;
-
- case 0: /* end flex feature ------------------------- */
- if ( top[0] != 3 )
- goto Unexpected_OtherSubr;
-
- if ( decoder->flex_state == 0 ||
- decoder->num_flex_vectors != 7 )
- {
- FT_ERROR(( "CID_Parse_CharStrings: unexpected flex end\n" ));
- goto Syntax_Error;
- }
-
- /* now consume the remaining `pop pop setcurpoint' */
- if ( ip + 6 > limit ||
- ip[0] != 12 || ip[1] != 17 || /* pop */
- ip[2] != 12 || ip[3] != 17 || /* pop */
- ip[4] != 12 || ip[5] != 33 ) /* setcurpoint */
- {
- FT_ERROR(( "CID_Parse_CharStrings: invalid flex charstring\n" ));
- goto Syntax_Error;
- }
-
- ip += 6;
- decoder->flex_state = 0;
- break;
-
- case 3: /* change hints ---------------------------- */
- if ( top[0] != 1 )
- goto Unexpected_OtherSubr;
-
- /* eat the following `pop' */
- if ( ip + 2 > limit )
- {
- FT_ERROR(( "CID_Parse_CharStrings: invalid escape (12+%d)\n",
- ip[-1] ));
- goto Syntax_Error;
- }
-
- if ( ip[0] != 12 || ip[1] != 17 )
- {
- FT_ERROR(( "CID_Parse_CharStrings:" ));
- FT_ERROR(( " `pop' expected, found (%d %d)\n",
- ip[0], ip[1] ));
- goto Syntax_Error;
- }
- ip += 2;
- break;
-
- case 12:
- case 13:
- /* counter control hints, clear stack */
- top = decoder->stack;
- break;
-
-#if 0
-
- case 14:
- case 15:
- case 16:
- case 17:
- case 18: /* multiple masters */
- {
- T1_Blend* blend = decoder->blend;
- FT_UInt num_points, nn, mm;
- FT_Int* delta;
- FT_Int* values;
-
-
- if ( !blend )
- {
- FT_ERROR(( "CID_Parse_CharStrings:" ));
- FT_ERROR(( " unexpected multiple masters operator!\n" ));
- goto Syntax_Error;
- }
-
- num_points = top[1] - 13 + ( top[1] == 18 );
- if ( top[0] != num_points * blend->num_designs )
- {
- FT_ERROR(( "CID_Parse_CharStrings:" ));
- FT_ERROR(( " incorrect number of mm arguments\n" ));
- goto Syntax_Error;
- }
-
- top -= blend->num_designs * num_points;
- if ( top < decoder->stack )
- goto Stack_Underflow;
-
- /* We want to compute: */
- /* */
- /* a0*w0 + a1*w1 + ... + ak*wk */
- /* */
- /* but we only have the a0, a1-a0, a2-a0, .. ak-a0. */
- /* However, given that w0 + w1 + ... + wk == 1, we can */
- /* rewrite it easily as: */
- /* */
- /* a0 + (a1-a0)*w1 + (a2-a0)*w2 + .. + (ak-a0)*wk */
- /* */
- /* where k == num_designs-1 */
- /* */
- /* I guess that's why it's written in this `compact' */
- /* form... */
- /* */
- delta = top + num_points;
- values = top;
- for ( nn = 0; nn < num_points; nn++ )
- {
- FT_Int x = values[0];
-
-
- for ( mm = 1; mm < blend->num_designs; mm++ )
- x += FT_MulFix( *delta++, blend->weight_vector[mm] );
-
- *values++ = x;
- }
- /* note that `top' will be incremented later by calls to `pop' */
- }
- break;
-
-#endif
-
- default:
- Unexpected_OtherSubr:
- FT_ERROR(( "CID_Parse_CharStrings: invalid othersubr [%d %d]!\n",
- top[0], top[1] ));
- goto Syntax_Error;
- }
- decoder->top = top;
- }
- else /* general operator */
- {
- FT_Int num_args = t1_args_count[op];
-
-
- if ( top - decoder->stack < num_args )
- goto Stack_Underflow;
-
- top -= num_args;
-
- switch ( op )
- {
- case op_endchar:
- FT_TRACE4(( " endchar" ));
-
- close_contour( builder );
-
- /* add current outline to the glyph slot */
- FT_GlyphLoader_Add( builder->loader );
-
- /* return now! */
- FT_TRACE4(( "\n\n" ));
- return T1_Err_Ok;
-
- case op_hsbw:
- FT_TRACE4(( " hsbw" ));
-
- builder->left_bearing.x += top[0];
- builder->advance.x = top[1];
- builder->advance.y = 0;
-
- builder->last.x = x = top[0];
- builder->last.y = y = 0;
-
- /* The `metrics_only' indicates that we only want to compute */
- /* the glyph's metrics (lsb + advance width), not load the */
- /* rest of it. So exit immediately. */
- if ( builder->metrics_only )
- return T1_Err_Ok;
-
- break;
-
- case op_seac:
- /* return immediately after processing */
- return t1operator_seac( decoder, top[0], top[1],
- top[2], top[3], top[4] );
-
- case op_sbw:
- FT_TRACE4(( " sbw" ));
-
- builder->left_bearing.x += top[0];
- builder->left_bearing.y += top[1];
- builder->advance.x = top[2];
- builder->advance.y = top[3];
-
- builder->last.x = x = top[0];
- builder->last.y = y = top[1];
-
- /* The `metrics_only' indicates that we only want to compute */
- /* the glyph's metrics (lsb + advance width), not load the */
- /* rest of it. So exit immediately. */
- if ( builder->metrics_only )
- return T1_Err_Ok;
-
- break;
-
- case op_closepath:
- FT_TRACE4(( " closepath" ));
-
- close_contour( builder );
- builder->path_begun = 0;
- break;
-
- case op_hlineto:
- FT_TRACE4(( " hlineto" ));
-
- if ( start_point( builder, x, y ) )
- goto Memory_Error;
-
- x += top[0];
- goto Add_Line;
-
- case op_hmoveto:
- FT_TRACE4(( " hmoveto" ));
-
- x += top[0];
- break;
-
- case op_hvcurveto:
- FT_TRACE4(( " hvcurveto" ));
-
- if ( start_point( builder, x, y ) ||
- check_points( builder, 3 ) )
- goto Memory_Error;
-
- x += top[0];
- add_point( builder, x, y, 0 );
-
- x += top[1];
- y += top[2];
- add_point( builder, x, y, 0 );
-
- y += top[3];
- add_point( builder, x, y, 1 );
-
- break;
-
- case op_rlineto:
- FT_TRACE4(( " rlineto" ));
-
- if ( start_point( builder, x, y ) )
- goto Memory_Error;
-
- x += top[0];
- y += top[1];
-
- Add_Line:
- if ( add_point1( builder, x, y ) )
- goto Memory_Error;
- break;
-
- case op_rmoveto:
- FT_TRACE4(( " rmoveto" ));
-
- x += top[0];
- y += top[1];
- break;
-
- case op_rrcurveto:
- FT_TRACE4(( " rcurveto" ));
-
- if ( start_point( builder, x, y ) ||
- check_points( builder, 3 ) )
- goto Memory_Error;
-
- x += top[0];
- y += top[1];
- add_point( builder, x, y, 0 );
-
- x += top[2];
- y += top[3];
- add_point( builder, x, y, 0 );
-
- x += top[4];
- y += top[5];
- add_point( builder, x, y, 1 );
-
- break;
-
- case op_vhcurveto:
- FT_TRACE4(( " vhcurveto" ));
-
- if ( start_point( builder, x, y ) ||
- check_points( builder, 3 ) )
- goto Memory_Error;
-
- y += top[0];
- add_point( builder, x, y, 0 );
-
- x += top[1];
- y += top[2];
- add_point( builder, x, y, 0 );
-
- x += top[3];
- add_point( builder, x, y, 1 );
-
- break;
-
- case op_vlineto:
- FT_TRACE4(( " vlineto" ));
-
- if ( start_point( builder, x, y ) )
- goto Memory_Error;
-
- y += top[0];
- goto Add_Line;
-
- case op_vmoveto:
- FT_TRACE4(( " vmoveto" ));
-
- y += top[0];
- break;
-
- case op_div:
- FT_TRACE4(( " div" ));
-
- if ( top[1] )
- {
- *top = top[0] / top[1];
- top++;
- }
- else
- {
- FT_ERROR(( "CID_Parse_CharStrings: division by 0\n" ));
- goto Syntax_Error;
- }
- break;
-
- case op_callsubr:
- {
- FT_Int index;
-
-
- FT_TRACE4(( " callsubr" ));
-
- index = top[0];
- if ( index < 0 || index >= (FT_Int)decoder->subrs->num_subrs )
- {
- FT_ERROR(( "CID_Parse_CharStrings: invalid subrs index\n" ));
- goto Syntax_Error;
- }
-
- if ( zone - decoder->zones >= T1_MAX_SUBRS_CALLS )
- {
- FT_ERROR(( "CID_Parse_CharStrings: too many nested subrs\n" ));
- goto Syntax_Error;
- }
-
- zone->cursor = ip; /* save current instruction pointer */
-
- zone++;
- zone->base = decoder->subrs->code[index] + decoder->lenIV;
- zone->limit = decoder->subrs->code[index + 1];
- zone->cursor = zone->base;
-
- if ( !zone->base )
- {
- FT_ERROR(( "CID_Parse_CharStrings: invoking empty subrs!\n" ));
- goto Syntax_Error;
- }
-
- decoder->zone = zone;
- ip = zone->base;
- limit = zone->limit;
- }
- break;
-
- case op_pop:
- FT_TRACE4(( " pop" ));
-
- /* theoretically, the arguments are already on the stack */
- top++;
- break;
-
- case op_return:
- FT_TRACE4(( " return" ));
-
- if ( zone <= decoder->zones )
- {
- FT_ERROR(( "CID_Parse_CharStrings: unexpected return\n" ));
- goto Syntax_Error;
- }
-
- zone--;
- ip = zone->cursor;
- limit = zone->limit;
- decoder->zone = zone;
-
- break;
-
- case op_dotsection:
- FT_TRACE4(( " dotsection" ));
-
- break;
-
- case op_hstem:
- FT_TRACE4(( " hstem" ));
-
- break;
-
- case op_hstem3:
- FT_TRACE4(( " hstem3" ));
-
- break;
-
- case op_vstem:
- FT_TRACE4(( " vstem" ));
-
- break;
-
- case op_vstem3:
- FT_TRACE4(( " vstem3" ));
-
- break;
-
- case op_setcurrentpoint:
- FT_TRACE4(( " setcurrentpoint" ));
-
- FT_ERROR(( "CID_Parse_CharStrings:" ));
- FT_ERROR(( " unexpected `setcurrentpoint'\n" ));
- goto Syntax_Error;
-
- default:
- FT_ERROR(( "CID_Parse_CharStrings: unhandled opcode %d\n", op ));
- goto Syntax_Error;
- }
-
- decoder->top = top;
-
- } /* general operator processing */
-
- } /* while ip < limit */
-
- FT_TRACE4(( "..end..\n\n" ));
-
- return error;
-
- Syntax_Error:
- return T1_Err_Syntax_Error;
-
- Stack_Underflow:
- return T1_Err_Stack_Underflow;
-
- Memory_Error:
- return builder->error;
- }
-
-
-#if 0
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** COMPUTE THE MAXIMUM ADVANCE WIDTH *********/
- /********** *********/
- /********** The following code is in charge of computing *********/
- /********** the maximum advance width of the font. It *********/
- /********** quickly processes each glyph charstring to *********/
- /********** extract the value from either a `sbw' or `seac' *********/
- /********** operator. *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- LOCAL_FUNC
- FT_Error CID_Compute_Max_Advance( CID_Face face,
- FT_Int* max_advance )
- {
- FT_Error error;
- CID_Decoder decoder;
- FT_Int glyph_index;
-
-
- *max_advance = 0;
-
- /* Initialize load decoder */
- CID_Init_Decoder( &decoder );
- CID_Init_Builder( &decoder.builder, face, 0, 0 );
-
- decoder.builder.metrics_only = 1;
- decoder.builder.load_points = 0;
-
- /* for each glyph, parse the glyph charstring and extract */
- /* the advance width */
- for ( glyph_index = 0; glyph_index < face->root.num_glyphs;
- glyph_index++ )
- {
- /* now get load the unscaled outline */
- error = cid_load_glyph( &decoder, glyph_index );
- /* ignore the error if one occurred - skip to next glyph */
- }
-
- *max_advance = decoder.builder.advance.x;
-
- return T1_Err_Ok;
- }
-
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /********** *********/
- /********** *********/
- /********** UNHINTED GLYPH LOADER *********/
- /********** *********/
- /********** The following code is in charge of loading a *********/
- /********** single outline. It completely ignores hinting *********/
- /********** and is used when FT_LOAD_NO_HINTING is set. *********/
- /********** *********/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Error cid_load_glyph( CID_Decoder* decoder,
- FT_UInt glyph_index )
- {
- CID_Face face = decoder->builder.face;
- CID_Info* cid = &face->cid;
- FT_Byte* p;
- FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes;
- FT_UInt fd_select;
- FT_ULong off1, glyph_len;
- FT_Stream stream = face->root.stream;
- FT_Error error = 0;
-
-
- /* read the CID font dict index and charstring offset from the CIDMap */
- if ( FILE_Seek( cid->data_offset + cid->cidmap_offset +
- glyph_index * entry_len) ||
- ACCESS_Frame( 2 * entry_len ) )
- goto Exit;
-
- p = (FT_Byte*)stream->cursor;
- fd_select = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
- off1 = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
- p += cid->fd_bytes;
- glyph_len = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1;
-
- FORGET_Frame();
-
- /* now, if the glyph is not empty, set up the subrs array, and parse */
- /* the charstrings */
- if ( glyph_len > 0 )
- {
- CID_FontDict* dict;
- FT_Byte* charstring;
- FT_UInt lenIV;
- FT_Memory memory = face->root.memory;
-
-
- /* setup subrs */
- decoder->subrs = face->subrs + fd_select;
-
- /* setup font matrix */
- dict = cid->font_dicts + fd_select;
- decoder->font_matrix = dict->font_matrix;
- lenIV = dict->private_dict.lenIV;
- decoder->lenIV = lenIV;
-
- /* the charstrings are encoded (stupid!) */
- /* load the charstrings, then execute it */
-
- if ( ALLOC( charstring, glyph_len ) )
- goto Exit;
-
- if ( !FILE_Read_At( cid->data_offset + off1, charstring, glyph_len ) )
- {
- cid_decrypt( charstring, glyph_len, 4330 );
- error = CID_Parse_CharStrings( decoder,
- charstring + lenIV,
- glyph_len - lenIV );
- }
-
- FREE( charstring );
- }
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- FT_Error CID_Load_Glyph( CID_GlyphSlot glyph,
- CID_Size size,
- FT_Int glyph_index,
- FT_Int load_flags )
- {
- FT_Error error;
- CID_Decoder decoder;
- CID_Face face = (CID_Face)glyph->root.face;
- FT_Bool hinting;
-
-
- if ( load_flags & FT_LOAD_NO_RECURSE )
- load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING;
-
- glyph->x_scale = size->root.metrics.x_scale;
- glyph->y_scale = size->root.metrics.y_scale;
-
- glyph->root.outline.n_points = 0;
- glyph->root.outline.n_contours = 0;
-
- hinting = ( load_flags & FT_LOAD_NO_SCALE ) == 0 &&
- ( load_flags & FT_LOAD_NO_HINTING ) == 0;
-
- glyph->root.format = ft_glyph_format_outline;
-
- {
- CID_Init_Decoder( &decoder );
- CID_Init_Builder( &decoder.builder, face, size, glyph );
-
- /* set up the decoder */
- decoder.builder.no_recurse =
- (FT_Bool)( load_flags & FT_LOAD_NO_RECURSE );
-
- error = cid_load_glyph( &decoder, glyph_index );
-
- /* save new glyph tables */
- CID_Done_Builder( &decoder.builder );
- }
-
- /* Now, set the metrics - this is rather simple, as */
- /* the left side bearing is the xMin, and the top side */
- /* bearing the yMax. */
- if ( !error )
- {
- /* for composite glyphs, return only the left side bearing and the */
- /* advance width */
- if ( load_flags & FT_LOAD_NO_RECURSE )
- {
- glyph->root.metrics.horiBearingX = decoder.builder.left_bearing.x;
- glyph->root.metrics.horiAdvance = decoder.builder.advance.x;
- }
- else
- {
- FT_BBox cbox;
- FT_Glyph_Metrics* metrics = &glyph->root.metrics;
-
-
- /* copy the _unscaled_ advance width */
- metrics->horiAdvance = decoder.builder.advance.x;
-
- /* make up vertical metrics */
- metrics->vertBearingX = 0;
- metrics->vertBearingY = 0;
- metrics->vertAdvance = 0;
-
- glyph->root.format = ft_glyph_format_outline;
-
- glyph->root.outline.flags &= ft_outline_owner;
- if ( size && size->root.metrics.y_ppem < 24 )
- glyph->root.outline.flags |= ft_outline_high_precision;
-
- glyph->root.outline.flags |= ft_outline_reverse_fill;
-
-#if 0
- glyph->root.outline.second_pass = TRUE;
- glyph->root.outline.high_precision = size->root.metrics.y_ppem < 24;
- glyph->root.outline.dropout_mode = 2;
-#endif
-
- if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 )
- {
- /* scale the outline and the metrics */
- FT_Int n;
- FT_Outline* cur = &glyph->root.outline;
- FT_Vector* vec = cur->points;
- FT_Fixed x_scale = glyph->x_scale;
- FT_Fixed y_scale = glyph->y_scale;
-
-
- /* First of all, scale the points */
- for ( n = cur->n_points; n > 0; n--, vec++ )
- {
- vec->x = FT_MulFix( vec->x, x_scale );
- vec->y = FT_MulFix( vec->y, y_scale );
- }
-
- FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
-
- /* Then scale the metrics */
- metrics->horiAdvance = FT_MulFix( metrics->horiAdvance, x_scale );
- metrics->vertAdvance = FT_MulFix( metrics->vertAdvance, y_scale );
-
- metrics->vertBearingX = FT_MulFix( metrics->vertBearingX, x_scale );
- metrics->vertBearingY = FT_MulFix( metrics->vertBearingY, y_scale );
- }
-
- /* apply the font matrix */
- FT_Outline_Transform( &glyph->root.outline, &decoder.font_matrix );
-
- /* compute the other metrics */
- FT_Outline_Get_CBox( &glyph->root.outline, &cbox );
-
- /* grid fit the bounding box if necessary */
- if ( hinting )
- {
- cbox.xMin &= -64;
- cbox.yMin &= -64;
- cbox.xMax = ( cbox.xMax + 63 ) & -64;
- cbox.yMax = ( cbox.yMax + 63 ) & -64;
- }
-
- metrics->width = cbox.xMax - cbox.xMin;
- metrics->height = cbox.yMax - cbox.yMin;
-
- metrics->horiBearingX = cbox.xMin;
- metrics->horiBearingY = cbox.yMax;
- }
- }
-
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidgload.h */
-/* */
-/* OpenType Glyph Loader (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDGLOAD_H
-#define CIDGLOAD_H
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidobjs.h"
-
-#else
-
-#include <cid/cidobjs.h>
-
-#endif
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Structure> */
- /* CID_Builder */
- /* */
- /* <Description> */
- /* A structure used during glyph loading to store its outline. */
- /* */
- /* <Fields> */
- /* memory :: The current memory object. */
- /* */
- /* face :: The current face object. */
- /* */
- /* glyph :: The current glyph slot. */
- /* */
- /* current :: The current glyph outline. */
- /* */
- /* base :: The base glyph outline. */
- /* */
- /* max_points :: maximum points in builder outline */
- /* */
- /* max_contours :: Maximal number of contours in builder outline. */
- /* */
- /* last :: The last point position. */
- /* */
- /* scale_x :: The horizontal scale (FUnits to sub-pixels). */
- /* */
- /* scale_y :: The vertical scale (FUnits to sub-pixels). */
- /* */
- /* pos_x :: The horizontal translation (if composite glyph). */
- /* */
- /* pos_y :: The vertical translation (if composite glyph). */
- /* */
- /* left_bearing :: The left side bearing point. */
- /* */
- /* advance :: The horizontal advance vector. */
- /* */
- /* bbox :: Unused. */
- /* */
- /* path_begun :: A flag which indicates that a new path has begun. */
- /* */
- /* load_points :: If this flag is not set, no points are loaded. */
- /* */
- /* no_recurse :: Set but not used. */
- /* */
- /* error :: An error code that is only used to report memory */
- /* allocation problems. */
- /* */
- /* metrics_only :: A boolean indicating that we only want to compute */
- /* the metrics of a given glyph, not load all of its */
- /* points. */
- /* */
- typedef struct CID_Builder_
- {
- FT_Memory memory;
- CID_Face face;
- CID_GlyphSlot glyph;
- FT_GlyphLoader* loader;
- FT_Outline* base;
- FT_Outline* current;
-
- FT_Vector last;
-
- FT_Fixed scale_x;
- FT_Fixed scale_y;
-
- FT_Pos pos_x;
- FT_Pos pos_y;
-
- FT_Vector left_bearing;
- FT_Vector advance;
-
- FT_BBox bbox; /* bounding box */
- FT_Bool path_begun;
- FT_Bool load_points;
- FT_Bool no_recurse;
-
- FT_Error error; /* only used for memory errors */
- FT_Bool metrics_only;
-
- } CID_Builder;
-
-
- /* execution context charstring zone */
-
- typedef struct CID_Decoder_Zone_
- {
- FT_Byte* base;
- FT_Byte* limit;
- FT_Byte* cursor;
-
- } CID_Decoder_Zone;
-
-
- typedef struct CID_Decoder_
- {
- CID_Builder builder;
-
- FT_Int stack[T1_MAX_CHARSTRINGS_OPERANDS];
- FT_Int* top;
-
- CID_Decoder_Zone zones[T1_MAX_SUBRS_CALLS + 1];
- CID_Decoder_Zone* zone;
-
- FT_Matrix font_matrix;
- CID_Subrs* subrs;
- FT_UInt lenIV;
-
- FT_Int flex_state;
- FT_Int num_flex_vectors;
- FT_Vector flex_vectors[7];
-
- } CID_Decoder;
-
-
- LOCAL_DEF
- void CID_Init_Builder( CID_Builder* builder,
- CID_Face face,
- CID_Size size,
- CID_GlyphSlot glyph );
-
- LOCAL_DEF
- void CID_Done_Builder( CID_Builder* builder );
-
-
- LOCAL_DEF
- void CID_Init_Decoder( CID_Decoder* decoder );
-
-
-#if 0
-
- /* Compute the maximum advance width of a font through quick parsing */
- LOCAL_DEF
- FT_Error CID_Compute_Max_Advance( CID_Face face,
- FT_Int* max_advance );
-
-#endif
-
- /* This function is exported, because it is used by the T1Dump utility */
- LOCAL_DEF
- FT_Error CID_Parse_CharStrings( CID_Decoder* decoder,
- FT_Byte* charstring_base,
- FT_Int charstring_len );
-
- LOCAL_DEF
- FT_Error CID_Load_Glyph( CID_GlyphSlot glyph,
- CID_Size size,
- FT_Int glyph_index,
- FT_Int load_flags );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* CIDGLOAD_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidload.c */
-/* */
-/* CID-keyed Type1 font loader (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/config/ftconfig.h>
-#include <freetype/ftmm.h>
-
-#include <freetype/internal/t1types.h>
-#include <freetype/internal/t1errors.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidload.h"
-
-#else
-
-#include <cid/cidload.h>
-
-#endif
-
-
-#include <stdio.h>
-#include <ctype.h> /* for isspace(), isalnum() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_cidload
-
-
- /* read a single offset */
- LOCAL_FUNC
- FT_Long cid_get_offset( FT_Byte** start,
- FT_Byte offsize )
- {
- FT_Long result;
- FT_Byte* p = *start;
-
-
- for ( result = 0; offsize > 0; offsize-- )
- {
- result <<= 8;
- result |= *p++;
- }
-
- *start = p;
- return result;
- }
-
-
- LOCAL_FUNC
- void cid_decrypt( FT_Byte* buffer,
- FT_Int length,
- FT_UShort seed )
- {
- while ( length > 0 )
- {
- FT_Byte plain;
-
-
- plain = ( *buffer ^ ( seed >> 8 ) );
- seed = ( *buffer + seed ) * 52845 + 22719;
- *buffer++ = plain;
- length--;
- }
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** TYPE 1 SYMBOL PARSING *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static
- FT_Error cid_load_keyword( CID_Face face,
- CID_Loader* loader,
- const CID_Field_Rec* keyword )
- {
- FT_Error error;
- CID_Parser* parser = &loader->parser;
- FT_Byte* object;
- CID_Info* cid = &face->cid;
-
-
- /* if the keyword has a dedicated callback, call it */
- if ( keyword->type == t1_field_callback )
- {
- error = keyword->reader( face, parser );
- goto Exit;
- }
-
- /* we must now compute the address of our target object */
- switch ( keyword->location )
- {
- case t1_field_cid_info:
- object = (FT_Byte*)cid;
- break;
-
- case t1_field_font_info:
- object = (FT_Byte*)&cid->font_info;
- break;
-
- default:
- {
- CID_FontDict* dict;
-
-
- if ( parser->num_dict < 0 )
- {
- FT_ERROR(( "cid_load_keyword: invalid use of `%s'!\n",
- keyword->ident ));
- error = T1_Err_Syntax_Error;
- goto Exit;
- }
-
- dict = cid->font_dicts + parser->num_dict;
- switch ( keyword->location )
- {
- case t1_field_private:
- object = (FT_Byte*)&dict->private_dict;
- break;
-
- default:
- object = (FT_Byte*)dict;
- }
- }
- }
-
- /* now, load the keyword data in the object's field(s) */
- if ( keyword->type == t1_field_integer_array ||
- keyword->type == t1_field_fixed_array )
- error = CID_Load_Field_Table( parser, keyword, object );
- else
- error = CID_Load_Field( parser, keyword, object );
-
- Exit:
- return error;
- }
-
-
- static
- FT_Error parse_font_bbox( CID_Face face,
- CID_Parser* parser )
- {
- FT_Short temp[4];
- FT_BBox* bbox = &face->cid.font_bbox;
-
-
- (void)CID_ToCoordArray( parser, 4, temp );
- bbox->xMin = temp[0];
- bbox->yMin = temp[1];
- bbox->xMax = temp[2];
- bbox->yMax = temp[3];
-
- return T1_Err_Ok; /* this is a callback function; */
- /* we must return an error code */
- }
-
-
- static
- FT_Error parse_font_matrix( CID_Face face,
- CID_Parser* parser )
- {
- FT_Matrix* matrix;
- CID_FontDict* dict;
- FT_Fixed temp[4];
-
-
- if ( parser->num_dict >= 0 )
- {
- dict = face->cid.font_dicts + parser->num_dict;
- matrix = &dict->font_matrix;
-
- (void)CID_ToFixedArray( parser, 4, temp, 3 );
- matrix->xx = temp[0];
- matrix->yx = temp[1];
- matrix->xy = temp[2];
- matrix->yy = temp[3];
- }
-
- return T1_Err_Ok; /* this is a callback function; */
- /* we must return an error code */
- }
-
-
- static
- FT_Error parse_fd_array( CID_Face face,
- CID_Parser* parser )
- {
- CID_Info* cid = &face->cid;
- FT_Memory memory = face->root.memory;
- FT_Error error = T1_Err_Ok;
- FT_Long num_dicts;
-
-
- num_dicts = CID_ToInt( parser );
-
- if ( !cid->font_dicts )
- {
- FT_Int n;
-
-
- if ( ALLOC_ARRAY( cid->font_dicts, num_dicts, CID_FontDict ) )
- goto Exit;
-
- cid->num_dicts = (FT_UInt)num_dicts;
-
- /* don't forget to set a few defaults */
- for ( n = 0; n < cid->num_dicts; n++ )
- {
- CID_FontDict* dict = cid->font_dicts + n;
-
-
- /* default value for lenIV */
- dict->private_dict.lenIV = 4;
- }
- }
-
- Exit:
- return error;
- }
-
-
- static
- const CID_Field_Rec t1_field_records[] =
- {
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidtokens.h"
-
-#else
-
-#include <cid/cidtokens.h>
-
-#endif
-
- { 0, t1_field_cid_info, t1_field_none, 0, 0, 0, 0, 0 }
- };
-
-
- static
- int is_alpha( char c )
- {
- return ( isalnum( c ) ||
- c == '.' ||
- c == '_' );
- }
-
-
- static
- void skip_whitespace( CID_Parser* parser )
- {
- FT_Byte* cur = parser->cursor;
-
-
- while ( cur < parser->limit && isspace( *cur ) )
- cur++;
-
- parser->cursor = cur;
- }
-
-
- static
- FT_Error parse_dict( CID_Face face,
- CID_Loader* loader,
- FT_Byte* base,
- FT_Long size )
- {
- CID_Parser* parser = &loader->parser;
-
-
- parser->cursor = base;
- parser->limit = base + size;
- parser->error = 0;
-
- {
- FT_Byte* cur = base;
- FT_Byte* limit = cur + size;
-
-
- for ( ;cur < limit; cur++ )
- {
- /* look for `%ADOBeginFontDict' */
- if ( *cur == '%' && cur + 20 < limit &&
- strncmp( (char*)cur, "%ADOBeginFontDict", 17 ) == 0 )
- {
- cur += 17;
-
- /* if /FDArray was found, then cid->num_dicts is > 0, and */
- /* we can start increasing parser->num_dict */
- if ( face->cid.num_dicts > 0 )
- parser->num_dict++;
- }
- /* look for immediates */
- else if ( *cur == '/' && cur + 2 < limit )
- {
- FT_Byte* cur2;
- FT_Int len;
-
-
- cur++;
-
- cur2 = cur;
- while ( cur2 < limit && is_alpha( *cur2 ) )
- cur2++;
-
- len = cur2 - cur;
- if ( len > 0 && len < 22 )
- {
- /* now compare the immediate name to the keyword table */
- const CID_Field_Rec* keyword = t1_field_records;
-
-
- for (;;)
- {
- FT_Byte* name;
-
-
- name = (FT_Byte*)keyword->ident;
- if ( !name )
- break;
-
- if ( cur[0] == name[0] &&
- len == (FT_Int)strlen( (const char*)name ) )
- {
- FT_Int n;
-
-
- for ( n = 1; n < len; n++ )
- if ( cur[n] != name[n] )
- break;
-
- if ( n >= len )
- {
- /* we found it - run the parsing callback */
- parser->cursor = cur2;
- skip_whitespace( parser );
- parser->error = cid_load_keyword( face, loader, keyword );
- if ( parser->error )
- return parser->error;
-
- cur = parser->cursor;
- break;
- }
- }
- keyword++;
- }
- }
- }
- }
- }
- return parser->error;
- }
-
-
- /* read the subrmap and the subrs of each font dict */
- static
- FT_Error cid_read_subrs( CID_Face face )
- {
- CID_Info* cid = &face->cid;
- FT_Memory memory = face->root.memory;
- FT_Stream stream = face->root.stream;
- FT_Error error;
- FT_Int n;
- CID_Subrs* subr;
- FT_UInt max_offsets = 0;
- FT_ULong* offsets = 0;
-
-
- if ( ALLOC_ARRAY( face->subrs, cid->num_dicts, CID_Subrs ) )
- goto Exit;
-
- subr = face->subrs;
- for ( n = 0; n < cid->num_dicts; n++, subr++ )
- {
- CID_FontDict* dict = cid->font_dicts + n;
- FT_UInt count, num_subrs = dict->num_subrs;
- FT_ULong data_len;
- FT_Byte* p;
-
-
- /* reallocate offsets array if needed */
- if ( num_subrs + 1 > max_offsets )
- {
- FT_UInt new_max = ( num_subrs + 1 + 3 ) & -4;
-
-
- if ( REALLOC_ARRAY( offsets, max_offsets, new_max, FT_ULong ) )
- goto Fail;
-
- max_offsets = new_max;
- }
-
- /* read the subrmap's offsets */
- if ( FILE_Seek( cid->data_offset + dict->subrmap_offset ) ||
- ACCESS_Frame( ( num_subrs + 1 ) * dict->sd_bytes ) )
- goto Fail;
-
- p = (FT_Byte*)stream->cursor;
- for ( count = 0; count <= num_subrs; count++ )
- offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes );
-
- FORGET_Frame();
-
- /* now, compute the size of subrs charstrings, */
- /* allocate, and read them */
- data_len = offsets[num_subrs] - offsets[0];
-
- if ( ALLOC_ARRAY( subr->code, num_subrs + 1, FT_Byte* ) ||
- ALLOC( subr->code[0], data_len ) )
- goto Fail;
-
- if ( FILE_Seek( cid->data_offset + offsets[0] ) ||
- FILE_Read( subr->code[0], data_len ) )
- goto Exit;
-
- /* set up pointers */
- for ( count = 1; count <= num_subrs; count++ )
- {
- FT_UInt len;
-
-
- len = offsets[count] - offsets[count - 1];
- subr->code[count] = subr->code[count - 1] + len;
- }
-
- /* decrypt subroutines */
- for ( count = 0; count < num_subrs; count++ )
- {
- FT_UInt len;
-
-
- len = offsets[count + 1] - offsets[count];
- cid_decrypt( subr->code[count], len, 4330 );
- }
-
- subr->num_subrs = num_subrs;
- }
-
- Exit:
- FREE( offsets );
- return error;
-
- Fail:
- if ( face->subrs )
- {
- for ( n = 0; n < cid->num_dicts; n++ )
- {
- if ( face->subrs[n].code )
- FREE( face->subrs[n].code[0] );
-
- FREE( face->subrs[n].code );
- }
- FREE( face->subrs );
- }
- goto Exit;
- }
-
-
- static
- void t1_init_loader( CID_Loader* loader,
- CID_Face face )
- {
- FT_UNUSED( face );
-
- MEM_Set( loader, 0, sizeof ( *loader ) );
- }
-
-
- static
- void t1_done_loader( CID_Loader* loader )
- {
- CID_Parser* parser = &loader->parser;
-
-
- /* finalize parser */
- CID_Done_Parser( parser );
- }
-
-
- LOCAL_FUNC
- FT_Error CID_Open_Face( CID_Face face )
- {
- CID_Loader loader;
- CID_Parser* parser;
- FT_Error error;
-
-
- t1_init_loader( &loader, face );
-
- parser = &loader.parser;
- error = CID_New_Parser( parser, face->root.stream, face->root.memory );
- if ( error )
- goto Exit;
-
- error = parse_dict( face, &loader,
- parser->postscript,
- parser->postscript_len );
- if ( error )
- goto Exit;
-
- face->cid.data_offset = loader.parser.data_offset;
- error = cid_read_subrs( face );
-
- Exit:
- t1_done_loader( &loader );
- return error;
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidload.h */
-/* */
-/* CID-keyed Type1 font loader (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDLOAD_H
-#define CIDLOAD_H
-
-#include <freetype/internal/ftstream.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidparse.h"
-
-#else
-
-#include <cid/cidparse.h>
-
-#endif
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- typedef struct CID_Loader_
- {
- CID_Parser parser; /* parser used to read the stream */
- FT_Int num_chars; /* number of characters in encoding */
-
- } CID_Loader;
-
-
- LOCAL_DEF
- FT_Long cid_get_offset( FT_Byte** start,
- FT_Byte offsize );
-
- LOCAL_DEF
- void cid_decrypt( FT_Byte* buffer,
- FT_Int length,
- FT_UShort seed );
-
- LOCAL_DEF
- FT_Error CID_Open_Face( CID_Face face );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* CIDLOAD_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidobjs.c */
-/* */
-/* CID objects manager (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidgload.h"
-#include "cidload.h"
-
-#else
-
-#include <cid/cidgload.h>
-#include <cid/cidload.h>
-
-#endif
-
-
-#include <freetype/internal/psnames.h>
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_cidobjs
-
-
- /*************************************************************************/
- /* */
- /* FACE FUNCTIONS */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Done_Face */
- /* */
- /* <Description> */
- /* Finalizes a given face object. */
- /* */
- /* <Input> */
- /* face :: A pointer to the face object to destroy. */
- /* */
- LOCAL_FUNC
- void CID_Done_Face( CID_Face face )
- {
- FT_Memory memory;
-
-
- if ( face )
- {
- CID_Info* cid = &face->cid;
- T1_FontInfo* info = &cid->font_info;
-
-
- memory = face->root.memory;
-
- /* release FontInfo strings */
- FREE( info->version );
- FREE( info->notice );
- FREE( info->full_name );
- FREE( info->family_name );
- FREE( info->weight );
-
- /* release font dictionaries */
- FREE( cid->font_dicts );
- cid->num_dicts = 0;
-
- /* release other strings */
- FREE( cid->cid_font_name );
- FREE( cid->registry );
- FREE( cid->ordering );
-
- face->root.family_name = 0;
- face->root.style_name = 0;
- }
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Init_Face */
- /* */
- /* <Description> */
- /* Initializes a given CID face object. */
- /* */
- /* <Input> */
- /* stream :: The source font stream. */
- /* */
- /* face_index :: The index of the font face in the resource. */
- /* */
- /* num_params :: Number of additional generic parameters. Ignored. */
- /* */
- /* params :: Additional generic parameters. Ignored. */
- /* */
- /* <InOut> */
- /* face :: The newly built face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error CID_Init_Face( FT_Stream stream,
- CID_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params )
- {
- FT_Error error;
- PSNames_Interface* psnames;
-
- FT_UNUSED( num_params );
- FT_UNUSED( params );
- FT_UNUSED( face_index );
- FT_UNUSED( stream );
-
-
- face->root.num_faces = 1;
-
- psnames = (PSNames_Interface*)face->psnames;
- if ( !psnames )
- {
- psnames = (PSNames_Interface*)FT_Get_Module_Interface(
- FT_FACE_LIBRARY( face ), "psnames" );
-
- face->psnames = psnames;
- }
-
- /* open the tokenizer; this will also check the font format */
- if ( FILE_Seek( 0 ) )
- goto Exit;
-
- error = CID_Open_Face( face );
- if ( error )
- goto Exit;
-
- /* if we just wanted to check the format, leave successfully now */
- if ( face_index < 0 )
- goto Exit;
-
- /* check the face index */
- if ( face_index != 0 )
- {
- FT_ERROR(( "CID_Init_Face: invalid face index\n" ));
- error = T1_Err_Invalid_Argument;
- goto Exit;
- }
-
- /* Now, load the font program into the face object */
- {
- /* Init the face object fields */
- /* Now set up root face fields */
- {
- FT_Face root = (FT_Face)&face->root;
-
-
- root->num_glyphs = face->cid.cid_count;
- root->num_charmaps = 0;
-
- root->face_index = face_index;
- root->face_flags = FT_FACE_FLAG_SCALABLE;
-
- root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
-
- if ( face->cid.font_info.is_fixed_pitch )
- root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
-
- /* XXX: TODO: add kerning with .afm support */
-
- /* get style name -- be careful, some broken fonts only */
- /* have a /FontName dictionary entry! */
- root->family_name = face->cid.font_info.family_name;
- if ( root->family_name )
- {
- char* full = face->cid.font_info.full_name;
- char* family = root->family_name;
-
- while ( *family && *full == *family )
- {
- family++;
- full++;
- }
-
- root->style_name = ( *full == ' ' ) ? full + 1
- : (char *)"Regular";
- }
- else
- {
- /* do we have a `/FontName'? */
- if ( face->cid.cid_font_name )
- {
- root->family_name = face->cid.cid_font_name;
- root->style_name = "Regular";
- }
- }
-
- /* no embedded bitmap support */
- root->num_fixed_sizes = 0;
- root->available_sizes = 0;
-
- root->bbox = face->cid.font_bbox;
- root->units_per_EM = 1000;
- root->ascender = (FT_Short)face->cid.font_bbox.yMax;
- root->descender = -(FT_Short)face->cid.font_bbox.yMin;
- root->height = ( ( root->ascender + root->descender ) * 12 )
- / 10;
-
-
-#if 0
-
- /* now compute the maximum advance width */
-
- root->max_advance_width = face->type1.private_dict.standard_width[0];
-
- /* compute max advance width for proportional fonts */
- if ( !face->type1.font_info.is_fixed_pitch )
- {
- FT_Int max_advance;
-
-
- error = CID_Compute_Max_Advance( face, &max_advance );
-
- /* in case of error, keep the standard width */
- if ( !error )
- root->max_advance_width = max_advance;
- else
- error = 0; /* clear error */
- }
-
- root->max_advance_height = root->height;
-
-#endif /* 0 */
-
- root->underline_position = face->cid.font_info.underline_position;
- root->underline_thickness = face->cid.font_info.underline_thickness;
-
- root->max_points = 0;
- root->max_contours = 0;
- }
- }
-
-#if 0
-
- /* charmap support - synthetize unicode charmap when possible */
- {
- FT_Face root = &face->root;
- FT_CharMap charmap = face->charmaprecs;
-
-
- /* synthesize a Unicode charmap if there is support in the `psnames' */
- /* module */
- if ( face->psnames )
- {
- PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
-
-
- if ( psnames->unicode_value )
- {
- error = psnames->build_unicodes(
- root->memory,
- face->type1.num_glyphs,
- (const char**)face->type1.glyph_names,
- &face->unicode_map );
- if ( !error )
- {
- root->charmap = charmap;
- charmap->face = (FT_Face)face;
- charmap->encoding = ft_encoding_unicode;
- charmap->platform_id = 3;
- charmap->encoding_id = 1;
- charmap++;
- }
-
- /* simply clear the error in case of failure (which really */
- /* means that out of memory or no unicode glyph names) */
- error = 0;
- }
- }
-
- /* now, support either the standard, expert, or custom encodings */
- charmap->face = (FT_Face)face;
- charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
-
- switch ( face->type1.encoding_type )
- {
- case t1_encoding_standard:
- charmap->encoding = ft_encoding_adobe_standard;
- charmap->encoding_id = 0;
- break;
-
- case t1_encoding_expert:
- charmap->encoding = ft_encoding_adobe_expert;
- charmap->encoding_id = 1;
- break;
-
- default:
- charmap->encoding = ft_encoding_adobe_custom;
- charmap->encoding_id = 2;
- break;
- }
-
- root->charmaps = face->charmaps;
- root->num_charmaps = charmap - face->charmaprecs + 1;
- face->charmaps[0] = &face->charmaprecs[0];
- face->charmaps[1] = &face->charmaprecs[1];
- }
-
-#endif /* 0 */
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Init_Driver */
- /* */
- /* <Description> */
- /* Initializes a given CID driver object. */
- /* */
- /* <Input> */
- /* driver :: A handle to the target driver object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error CID_Init_Driver( CID_Driver driver )
- {
- FT_UNUSED( driver );
-
- return T1_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Done_Driver */
- /* */
- /* <Description> */
- /* Finalizes a given CID driver. */
- /* */
- /* <Input> */
- /* driver :: A handle to the target CID driver. */
- /* */
- LOCAL_DEF
- void CID_Done_Driver( CID_Driver driver )
- {
- FT_UNUSED( driver );
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidobjs.h */
-/* */
-/* CID objects manager (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDOBJS_H
-#define CIDOBJS_H
-
-#include <freetype/internal/ftobjs.h>
-#include <freetype/config/ftconfig.h>
-#include <freetype/internal/t1errors.h>
-#include <freetype/internal/t1types.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /* The following structures must be defined by the hinter */
- typedef struct CID_Size_Hints_ CID_Size_Hints;
- typedef struct CID_Glyph_Hints_ CID_Glyph_Hints;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* CID_Driver */
- /* */
- /* <Description> */
- /* A handle to a Type 1 driver object. */
- /* */
- typedef struct CID_DriverRec_* CID_Driver;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* CID_Size */
- /* */
- /* <Description> */
- /* A handle to a Type 1 size object. */
- /* */
- typedef struct CID_SizeRec_* CID_Size;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* CID_GlyphSlot */
- /* */
- /* <Description> */
- /* A handle to a Type 1 glyph slot object. */
- /* */
- typedef struct CID_GlyphSlotRec_* CID_GlyphSlot;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* CID_CharMap */
- /* */
- /* <Description> */
- /* A handle to a Type 1 character mapping object. */
- /* */
- /* <Note> */
- /* The Type 1 format doesn't use a charmap but an encoding table. */
- /* The driver is responsible for making up charmap objects */
- /* corresponding to these tables. */
- /* */
- typedef struct CID_CharMapRec_* CID_CharMap;
-
-
- /*************************************************************************/
- /* */
- /* HERE BEGINS THE TYPE 1 SPECIFIC STUFF */
- /* */
- /*************************************************************************/
-
-
- typedef struct CID_SizeRec_
- {
- FT_SizeRec root;
- FT_Bool valid;
-
- } CID_SizeRec;
-
-
- typedef struct CID_GlyphSlotRec_
- {
- FT_GlyphSlotRec root;
-
- FT_Bool hint;
- FT_Bool scaled;
-
- FT_Fixed x_scale;
- FT_Fixed y_scale;
-
- } CID_GlyphSlotRec;
-
-
- LOCAL_DEF
- FT_Error CID_Init_Face( FT_Stream stream,
- CID_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params );
-
- LOCAL_DEF
- void CID_Done_Face( CID_Face face );
-
-
- LOCAL_DEF
- FT_Error CID_Init_Driver( CID_Driver driver );
-
- LOCAL_DEF
- void CID_Done_Driver( CID_Driver driver );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* CIDOBJS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidparse.c */
-/* */
-/* CID-keyed Type1 parser (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftcalc.h>
-#include <freetype/internal/ftobjs.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/t1errors.h>
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidparse.h"
-
-#else
-
-#include <cid/cidparse.h>
-
-#endif
-
-
-#include <string.h> /* for strncmp() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_cidparse
-
-
-#if 0
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** IMPLEMENTATION OF CID_TABLE OBJECT *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_New_Table */
- /* */
- /* <Description> */
- /* Initializes a CID_Table. */
- /* */
- /* <InOut> */
- /* table :: The address of the target table. */
- /* */
- /* <Input> */
- /* count :: The table size, i.e., the maximal number of elements. */
- /* */
- /* memory :: The memory object to be used for all subsequent */
- /* reallocations. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- LOCAL_FUNC
- FT_Error CID_New_Table( CID_Table* table,
- FT_Int count,
- FT_Memory memory )
- {
- FT_Error error;
-
-
- table->memory = memory;
- if ( ALLOC_ARRAY( table->elements, count, FT_Byte* ) ||
- ALLOC_ARRAY( table->lengths, count, FT_Byte* ) )
- goto Exit;
-
- table->max_elems = count;
- table->init = 0xDEADBEEFL;
- table->num_elems = 0;
- table->block = 0;
- table->capacity = 0;
- table->cursor = 0;
-
- Exit:
- if ( error )
- FREE( table->elements );
-
- return error;
- }
-
-
- static
- void shift_elements( CID_Table* table,
- FT_Byte* old_base )
- {
- FT_Long delta = table->block - old_base;
- FT_Byte** offset = table->elements;
- FT_Byte** limit = offset + table->max_elems;
-
-
- if ( delta )
- for ( ; offset < limit; offset++ )
- {
- if ( offset[0] )
- offset[0] += delta;
- }
- }
-
-
- static
- FT_Error reallocate_t1_table( CID_Table* table,
- FT_Int new_size )
- {
- FT_Memory memory = table->memory;
- FT_Byte* old_base = table->block;
- FT_Error error;
-
-
- /* realloc the base block */
- if ( REALLOC( table->block, table->capacity, new_size ) )
- return error;
-
- table->capacity = new_size;
-
- /* shift all offsets when needed */
- if ( old_base )
- shift_elements( table, old_base );
-
- return T1_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Add_Table */
- /* */
- /* <Description> */
- /* Adds an object to a CID_Table, possibly growing its memory block. */
- /* */
- /* <InOut> */
- /* table :: The target table. */
- /* */
- /* <Input> */
- /* index :: The index of the object in the table. */
- /* */
- /* object :: The address of the object to copy in the memory. */
- /* */
- /* length :: The length in bytes of the source object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. An error is returned if */
- /* reallocation fails. */
- /* */
- LOCAL_FUNC
- FT_Error CID_Add_Table( CID_Table* table,
- FT_Int index,
- void* object,
- FT_Int length )
- {
- if ( index < 0 || index > table->max_elems )
- {
- FT_ERROR(( "CID_Add_Table: invalid index\n" ));
- return T1_Err_Syntax_Error;
- }
-
- /* grow the base block if needed */
- if ( table->cursor + length > table->capacity )
- {
- FT_Error error;
- FT_Int new_size = table->capacity;
-
-
- while ( new_size < table->cursor + length )
- new_size += 1024;
-
- error = reallocate_t1_table( table, new_size );
- if ( error )
- return error;
- }
-
- /* add the object to the base block and adjust offset */
- table->elements[index] = table->block + table->cursor;
- table->lengths [index] = length;
-
- MEM_Copy( table->block + table->cursor, object, length );
-
- table->cursor += length;
-
- return T1_Err_Ok;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* CID_Done_Table */
- /* */
- /* <Description> */
- /* Finalizes a CID_Table (reallocate it to its current cursor). */
- /* */
- /* <InOut> */
- /* table :: The target table. */
- /* */
- /* <Note> */
- /* This function does NOT release the heap's memory block. It is up */
- /* to the caller to clean it, or reference it in its own structures. */
- /* */
- LOCAL_FUNC
- void CID_Done_Table( CID_Table* table )
- {
- FT_Memory memory = table->memory;
- FT_Error error;
- FT_Byte* old_base;
-
-
- /* should never fail, as rec.cursor <= rec.size */
- old_base = table->block;
- if ( !old_base )
- return;
-
- (void)REALLOC( table->block, table->capacity, table->cursor );
- table->capacity = table->cursor;
-
- if ( old_base != table->block )
- shift_elements( table, old_base );
- }
-
-
- LOCAL_FUNC
- void CID_Release_Table( CID_Table* table )
- {
- FT_Memory memory = table->memory;
-
-
- if ( table->init == 0xDEADBEEFL )
- {
- FREE( table->block );
- FREE( table->elements );
- FREE( table->lengths );
- table->init = 0;
- }
- }
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** INPUT STREAM PARSER *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#define IS_CID_WHITESPACE( c ) ( (c) == ' ' || (c) == '\t' )
-#define IS_CID_LINESPACE( c ) ( (c) == '\r' || (c) == '\n' )
-
-#define IS_CID_SPACE( c ) ( IS_CID_WHITESPACE( c ) || IS_CID_LINESPACE( c ) )
-
-
- LOCAL_FUNC
- void CID_Skip_Spaces( CID_Parser* parser )
- {
- FT_Byte* cur = parser->cursor;
- FT_Byte* limit = parser->limit;
-
-
- while ( cur < limit )
- {
- FT_Byte c = *cur;
-
-
- if ( !IS_CID_SPACE( c ) )
- break;
- cur++;
- }
-
- parser->cursor = cur;
- }
-
-
- LOCAL_FUNC
- void CID_ToToken( CID_Parser* parser,
- CID_Token_Rec* token )
- {
- FT_Byte* cur;
- FT_Byte* limit;
- FT_Byte starter, ender;
- FT_Int embed;
-
-
- token->type = t1_token_none;
- token->start = 0;
- token->limit = 0;
-
- /* first of all, skip space */
- CID_Skip_Spaces( parser );
-
- cur = parser->cursor;
- limit = parser->limit;
-
- if ( cur < limit )
- {
- switch ( *cur )
- {
- /************* check for strings ***********************/
- case '(':
- token->type = t1_token_string;
- ender = ')';
- goto Lookup_Ender;
-
- /************* check for programs/array ****************/
- case '{':
- token->type = t1_token_array;
- ender = '}';
- goto Lookup_Ender;
-
- /************* check for table/array ******************/
- case '[':
- token->type = t1_token_array;
- ender = ']';
-
- Lookup_Ender:
- embed = 1;
- starter = *cur++;
- token->start = cur;
-
- while ( cur < limit )
- {
- if ( *cur == starter )
- embed++;
- else if ( *cur == ender )
- {
- embed--;
- if ( embed <= 0 )
- {
- token->limit = cur++;
- break;
- }
- }
- cur++;
- }
- break;
-
- /* **************** otherwise, it is any token **********/
- default:
- token->start = cur++;
- token->type = t1_token_any;
- while ( cur < limit && !IS_CID_SPACE( *cur ) )
- cur++;
-
- token->limit = cur;
- }
-
- if ( !token->limit )
- {
- token->start = 0;
- token->type = t1_token_none;
- }
-
- parser->cursor = cur;
- }
- }
-
-
- LOCAL_FUNC
- void CID_ToTokenArray( CID_Parser* parser,
- CID_Token_Rec* tokens,
- FT_UInt max_tokens,
- FT_Int* pnum_tokens )
- {
- CID_Token_Rec master;
-
-
- *pnum_tokens = -1;
-
- CID_ToToken( parser, &master );
-
- if ( master.type == t1_token_array )
- {
- FT_Byte* old_cursor = parser->cursor;
- FT_Byte* old_limit = parser->limit;
- CID_Token_Rec* cur = tokens;
- CID_Token_Rec* limit = cur + max_tokens;
-
-
- parser->cursor = master.start;
- parser->limit = master.limit;
-
- while ( parser->cursor < parser->limit )
- {
- CID_Token_Rec token;
-
-
- CID_ToToken( parser, &token );
- if ( !token.type )
- break;
-
- if ( cur < limit )
- *cur = token;
-
- cur++;
- }
-
- *pnum_tokens = cur - tokens;
-
- parser->cursor = old_cursor;
- parser->limit = old_limit;
- }
- }
-
-
- static
- FT_Long t1_toint( FT_Byte** cursor,
- FT_Byte* limit )
- {
- FT_Long result = 0;
- FT_Byte* cur = *cursor;
- FT_Byte c, d;
-
-
- for ( ; cur < limit; cur++ )
- {
- c = *cur;
- d = (FT_Byte)( c - '0' );
- if ( d < 10 )
- break;
-
- if ( c == '-' )
- {
- cur++;
- break;
- }
- }
-
- if ( cur < limit )
- {
- do
- {
- d = (FT_Byte)( cur[0] - '0' );
- if ( d >= 10 )
- break;
-
- result = result * 10 + d;
- cur++;
-
- } while ( cur < limit );
-
- if ( c == '-' )
- result = -result;
- }
-
- *cursor = cur;
-
- return result;
- }
-
-
- static
- FT_Long t1_tofixed( FT_Byte** cursor,
- FT_Byte* limit,
- FT_Long power_ten )
- {
- FT_Byte* cur = *cursor;
- FT_Long num, divider, result;
- FT_Int sign = 0;
- FT_Byte d;
-
-
- if ( cur >= limit )
- return 0;
-
- /* first of all, read the integer part */
- result = t1_toint( &cur, limit ) << 16;
- num = 0;
- divider = 1;
-
- if ( result < 0 )
- {
- sign = 1;
- result = -result;
- }
-
- if ( cur >= limit )
- goto Exit;
-
- /* read decimal part, if any */
- if ( *cur == '.' && cur + 1 < limit )
- {
- cur++;
-
- for (;;)
- {
- d = (FT_Byte)( *cur - '0' );
- if ( d >= 10 )
- break;
-
- if ( divider < 10000000L )
- {
- num = num * 10 + d;
- divider *= 10;
- }
-
- cur++;
- if ( cur >= limit )
- break;
- }
- }
-
- /* read exponent, if any */
- if ( cur + 1 < limit && ( *cur == 'e' || *cur == 'E' ) )
- {
- cur++;
- power_ten += t1_toint( &cur, limit );
- }
-
- Exit:
- /* raise to power of ten if needed */
- while ( power_ten > 0 )
- {
- result = result * 10;
- num = num * 10;
- power_ten--;
- }
-
- while ( power_ten < 0 )
- {
- result = result / 10;
- divider = divider * 10;
- power_ten++;
- }
-
- if ( num )
- result += FT_DivFix( num, divider );
-
- if ( sign )
- result = -result;
-
- *cursor = cur;
-
- return result;
- }
-
-
- static
- int t1_tobool( FT_Byte** cursor,
- FT_Byte* limit )
- {
- FT_Byte* cur = *cursor;
- FT_Bool result = 0;
-
-
- /* return 1 if we find a "true", 0 otherwise */
- if ( cur + 3 < limit &&
- cur[0] == 't' &&
- cur[1] == 'r' &&
- cur[2] == 'u' &&
- cur[3] == 'e' )
- {
- result = 1;
- cur += 5;
- }
- else if ( cur + 4 < limit &&
- cur[0] == 'f' &&
- cur[1] == 'a' &&
- cur[2] == 'l' &&
- cur[3] == 's' &&
- cur[4] == 'e' )
- {
- result = 0;
- cur += 6;
- }
- *cursor = cur;
- return result;
- }
-
-
- static
- FT_Int t1_tocoordarray( FT_Byte** cursor,
- FT_Byte* limit,
- FT_Int max_coords,
- FT_Short* coords )
- {
- FT_Byte* cur = *cursor;
- FT_Int count = 0;
- FT_Byte c, ender;
-
-
- if ( cur >= limit )
- goto Exit;
-
- /* check for the beginning of an array. */
- /* If not, only one number will be read */
- c = *cur;
- ender = 0;
-
- if ( c == '[' )
- ender = ']';
-
- if ( c == '{' )
- ender = '}';
-
- if ( ender )
- cur++;
-
- /* now, read the coordinates */
- for ( ; cur < limit; )
- {
- /* skip whitespace in front of data */
- for (;;)
- {
- c = *cur;
- if ( c != ' ' && c != '\t' )
- break;
-
- cur++;
- if ( cur >= limit )
- goto Exit;
- }
-
- if ( count >= max_coords || c == ender )
- break;
-
- coords[count] = (FT_Short)( t1_tofixed( &cur, limit, 0 ) >> 16 );
- count++;
-
- if ( !ender )
- break;
- }
-
- Exit:
- *cursor = cur;
- return count;
- }
-
-
- static
- FT_Int t1_tofixedarray( FT_Byte** cursor,
- FT_Byte* limit,
- FT_Int max_values,
- FT_Fixed* values,
- FT_Int power_ten )
- {
- FT_Byte* cur = *cursor;
- FT_Int count = 0;
- FT_Byte c, ender;
-
-
- if ( cur >= limit )
- goto Exit;
-
- /* check for the beginning of an array. */
- /* If not, only one number will be read */
- c = *cur;
- ender = 0;
-
- if ( c == '[' )
- ender = ']';
-
- if ( c == '{' )
- ender = '}';
-
- if ( ender )
- cur++;
-
- /* now, read the values */
- for ( ; cur < limit; )
- {
- /* skip whitespace in front of data */
- for (;;)
- {
- c = *cur;
- if ( c != ' ' && c != '\t' )
- break;
-
- cur++;
- if ( cur >= limit )
- goto Exit;
- }
-
- if ( count >= max_values || c == ender )
- break;
-
- values[count] = t1_tofixed( &cur, limit, power_ten );
- count++;
-
- if ( !ender )
- break;
- }
-
- Exit:
- *cursor = cur;
-
- return count;
- }
-
-
- /* Loads a simple field (i.e. non-table) into the current */
- /* list of objects */
- LOCAL_FUNC
- FT_Error CID_Load_Field( CID_Parser* parser,
- const CID_Field_Rec* field,
- void* object )
- {
- CID_Token_Rec token;
- FT_Byte* cur;
- FT_Byte* limit;
- FT_UInt count;
- FT_UInt index;
- FT_Error error;
-
-
- CID_ToToken( parser, &token );
- if ( !token.type )
- goto Fail;
-
- count = 1;
- index = 0;
- cur = token.start;
- limit = token.limit;
-
- {
- FT_Byte* q = (FT_Byte*)object + field->offset;
- FT_Long val;
- FT_String* string;
-
-
- switch ( field->type )
- {
- case t1_field_bool:
- val = t1_tobool( &cur, limit );
- goto Store_Integer;
-
- case t1_field_fixed:
- val = t1_tofixed( &cur, limit, 0 );
- goto Store_Integer;
-
- case t1_field_integer:
- val = t1_toint( &cur, limit );
-
- Store_Integer:
- switch ( field->size )
- {
- case 1:
- *(FT_Byte*)q = (FT_Byte)val;
- break;
-
- case 2:
- *(FT_UShort*)q = (FT_UShort)val;
- break;
-
- case 4:
- *(FT_Int32*)q = (FT_Int)val;
- break;
-
- default: /* for 64-bit systems */
- *(FT_Long*)q = val;
- }
- break;
-
- case t1_field_string:
- {
- FT_Memory memory = parser->memory;
- FT_UInt len = limit-cur;
-
-
- if ( ALLOC( string, len + 1 ) )
- goto Exit;
-
- MEM_Copy( string, cur, len );
- string[len] = 0;
-
- *(FT_String**)q = string;
- }
- break;
-
- default:
- /* an error occurred */
- goto Fail;
- }
- }
-
- error = 0;
-
- Exit:
- return error;
-
- Fail:
- error = T1_Err_Invalid_File_Format;
- goto Exit;
- }
-
-
-#define T1_MAX_TABLE_ELEMENTS 32
-
-
- LOCAL_FUNC
- FT_Error CID_Load_Field_Table( CID_Parser* parser,
- const CID_Field_Rec* field,
- void* object )
- {
- CID_Token_Rec elements[T1_MAX_TABLE_ELEMENTS];
- CID_Token_Rec* token;
- FT_Int num_elements;
- FT_Error error = 0;
- FT_Byte* old_cursor;
- FT_Byte* old_limit;
- CID_Field_Rec fieldrec = *(CID_Field_Rec*)field;
-
-
- fieldrec.type = t1_field_integer;
- if ( field->type == t1_field_fixed_array )
- fieldrec.type = t1_field_fixed;
-
- CID_ToTokenArray( parser, elements, 32, &num_elements );
- if ( num_elements < 0 )
- goto Fail;
-
- if ( num_elements > T1_MAX_TABLE_ELEMENTS )
- num_elements = T1_MAX_TABLE_ELEMENTS;
-
- old_cursor = parser->cursor;
- old_limit = parser->limit;
-
- /* we store the elements count */
- if ( field->count_offset )
- *(FT_Byte*)( (FT_Byte*)object + field->count_offset ) = num_elements;
-
- /* we now load each element, adjusting the field.offset on each one */
- token = elements;
- for ( ; num_elements > 0; num_elements--, token++ )
- {
- parser->cursor = token->start;
- parser->limit = token->limit;
- CID_Load_Field( parser, &fieldrec, object );
- fieldrec.offset += fieldrec.size;
- }
-
- parser->cursor = old_cursor;
- parser->limit = old_limit;
-
- Exit:
- return error;
-
- Fail:
- error = T1_Err_Invalid_File_Format;
- goto Exit;
- }
-
-
- LOCAL_FUNC
- FT_Long CID_ToInt( CID_Parser* parser )
- {
- return t1_toint( &parser->cursor, parser->limit );
- }
-
-
- LOCAL_FUNC
- FT_Int CID_ToCoordArray( CID_Parser* parser,
- FT_Int max_coords,
- FT_Short* coords )
- {
- return t1_tocoordarray( &parser->cursor, parser->limit,
- max_coords, coords );
- }
-
-
- LOCAL_FUNC
- FT_Int CID_ToFixedArray( CID_Parser* parser,
- FT_Int max_values,
- FT_Fixed* values,
- FT_Int power_ten )
- {
- return t1_tofixedarray( &parser->cursor, parser->limit,
- max_values, values, power_ten );
- }
-
-
-#if 0
-
- /* return the value of an hexadecimal digit */
- static
- int hexa_value( char c )
- {
- unsigned int d;
-
-
- d = (unsigned int)( c - '0' );
- if ( d <= 9 )
- return (int)d;
-
- d = (unsigned int)( c - 'a' );
- if ( d <= 5 )
- return (int)( d + 10 );
-
- d = (unsigned int)( c - 'A' );
- if ( d <= 5 )
- return (int)( d + 10 );
-
- return -1;
- }
-
-#endif /* 0 */
-
-
- LOCAL_FUNC
- FT_Error CID_New_Parser( CID_Parser* parser,
- FT_Stream stream,
- FT_Memory memory )
- {
- FT_Error error;
- FT_ULong base_offset, offset, ps_len;
- FT_Byte buffer[256 + 10];
- FT_Int buff_len;
-
-
- MEM_Set( parser, 0, sizeof ( *parser ) );
- parser->stream = stream;
- parser->memory = memory;
-
- base_offset = FILE_Pos();
-
- /* first of all, check the font format in the header */
- if ( ACCESS_Frame( 31 ) )
- goto Exit;
-
- if ( strncmp( (char *)stream->cursor,
- "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
- {
- FT_TRACE2(( "[not a valid CID-keyed font]\n" ));
- error = FT_Err_Unknown_File_Format;
- }
-
- FORGET_Frame();
- if ( error )
- goto Exit;
-
- /* now, read the rest of the file, until we find a `StartData' */
- buff_len = 256;
- for (;;)
- {
- FT_Byte *p, *limit = buffer + 256;
-
- /* fill input buffer */
- buff_len -= 256;
- if ( buff_len > 0 )
- MEM_Move( buffer, limit, buff_len );
-
- if ( FILE_Read( buffer, 256 + 10 - buff_len ) )
- goto Exit;
-
- buff_len = 256 + 10;
-
- /* look for `StartData' */
- for ( p = buffer; p < limit; p++ )
- {
- if ( p[0] == 'S' && strncmp( (char*)p, "StartData", 9 ) == 0 )
- {
- /* save offset of binary data after `StartData' */
- offset = FILE_Pos() - ( limit - p ) + 10;
- goto Found;
- }
- }
- }
-
- Found:
- /* we have found the start of the binary data. We will now */
- /* rewind and extract the frame of corresponding to the Postscript */
- /* section */
-
- ps_len = offset - base_offset;
- if ( FILE_Seek( base_offset ) ||
- EXTRACT_Frame( ps_len, parser->postscript ) )
- goto Exit;
-
- parser->data_offset = offset;
- parser->postscript_len = ps_len;
- parser->cursor = parser->postscript;
- parser->limit = parser->cursor + ps_len;
- parser->num_dict = -1;
-
- Exit:
- return error;
- }
-
-
- LOCAL_FUNC
- void CID_Done_Parser( CID_Parser* parser )
- {
- /* always free the private dictionary */
- if ( parser->postscript )
- {
- FT_Stream stream = parser->stream;
-
-
- RELEASE_Frame( parser->postscript );
- }
- }
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidparse.h */
-/* */
-/* CID-keyed Type1 parser (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDPARSE_H
-#define CIDPARSE_H
-
-#include <freetype/internal/t1types.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
-#if 0
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* CID_Table */
- /* */
- /* <Description> */
- /* A CID_Table is a simple object used to store an array of objects */
- /* in a single memory block. */
- /* */
- /* <Fields> */
- /* block :: The address in memory of the growheap's block. This */
- /* can change between two object adds, due to the use */
- /* of `realloc()'. */
- /* */
- /* cursor :: The current top of the growheap within its block. */
- /* */
- /* capacity :: The current size of the heap block. Increments by */
- /* blocks of 1 kByte. */
- /* */
- /* init :: A boolean. Set when the table has been initialized */
- /* (the table user should set this field). */
- /* */
- /* max_elems :: The maximal number of elements in the table. */
- /* */
- /* num_elems :: The current number of elements (in use) in the table. */
- /* */
- /* elements :: A table of element addresses within the block. */
- /* */
- /* lengths :: A table of element sizes within the block. */
- /* */
- /* memory :: The memory object used for memory operations */
- /* (allocation resp. reallocation). */
- /* */
- typedef struct CID_Table_
- {
- FT_Byte* block; /* current memory block */
- FT_Int cursor; /* current cursor in memory block */
- FT_Int capacity; /* current size of memory block */
- FT_Long init;
-
- FT_Int max_elems;
- FT_Int num_elems;
- FT_Byte** elements; /* addresses of table elements */
- FT_Int* lengths; /* lengths of table elements */
-
- FT_Memory memory;
-
- } CID_Table;
-
-
- LOCAL_DEF
- FT_Error CID_New_Table( CID_Table* table,
- FT_Int count,
- CID_Memory memory );
-
- LOCAL_DEF
- FT_Error CID_Add_Table( CID_Table* table,
- FT_Int index,
- void* object,
- FT_Int length );
-
- LOCAL_DEF
- void CID_Release_Table( CID_Table* table );
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* CID_Parser */
- /* */
- /* <Description> */
- /* A CID_Parser is an object used to parse a Type 1 fonts very */
- /* quickly. */
- /* */
- /* <Fields> */
- /* stream :: The current input stream. */
- /* */
- /* memory :: The current memory object. */
- /* */
- /* postscript :: A pointer to the data to be parsed. */
- /* */
- /* postscript_len :: The length of the data to be parsed. */
- /* */
- /* data_offset :: The start position of the binary data (i.e., the */
- /* end of the data to be parsed. */
- /* */
- /* cursor :: The current parser cursor. */
- /* */
- /* limit :: The current parser limit (i.e., the first byte */
- /* after the current dictionary). */
- /* */
- /* error :: The current parsing error. */
- /* */
- /* cid :: A structure which holds the information about */
- /* the current font. */
- /* */
- /* num_dict :: The number of font dictionaries. */
- /* */
- typedef struct CID_Parser_
- {
- FT_Stream stream;
- FT_Memory memory;
-
- FT_Byte* postscript;
- FT_Int postscript_len;
-
- FT_ULong data_offset;
-
- FT_Byte* cursor;
- FT_Byte* limit;
- FT_Error error;
-
- CID_Info* cid;
- FT_Int num_dict;
-
- } CID_Parser;
-
-
- LOCAL_DEF
- FT_Error CID_New_Parser( CID_Parser* parser,
- FT_Stream stream,
- FT_Memory memory );
-
- LOCAL_DEF
- void CID_Done_Parser( CID_Parser* parser );
-
-
- /*************************************************************************/
- /* */
- /* PARSING ROUTINES */
- /* */
- /*************************************************************************/
-
- LOCAL_DEF
- FT_Long CID_ToInt( CID_Parser* parser );
-
- LOCAL_DEF
- FT_Int CID_ToCoordArray( CID_Parser* parser,
- FT_Int max_coords,
- FT_Short* coords );
-
- LOCAL_DEF
- FT_Int CID_ToFixedArray( CID_Parser* parser,
- FT_Int max_values,
- FT_Fixed* values,
- FT_Int power_ten );
-
- LOCAL_DEF
- void CID_Skip_Spaces( CID_Parser* parser );
-
-
- /* simple enumeration type used to identify token types */
- typedef enum CID_Token_Type_
- {
- t1_token_none = 0,
- t1_token_any,
- t1_token_string,
- t1_token_array,
-
- /* do not remove */
- t1_token_max
-
- } CID_Token_Type;
-
-
- /* a simple structure used to identify tokens */
- typedef struct CID_Token_Rec_
- {
- FT_Byte* start; /* first character of token in input stream */
- FT_Byte* limit; /* first character after the token */
- CID_Token_Type type; /* type of token */
-
- } CID_Token_Rec;
-
-
- LOCAL_DEF
- void CID_ToToken( CID_Parser* parser,
- CID_Token_Rec* token );
-
-
- /* enumeration type used to identify object fields */
- typedef enum CID_Field_Type_
- {
- t1_field_none = 0,
- t1_field_bool,
- t1_field_integer,
- t1_field_fixed,
- t1_field_string,
- t1_field_integer_array,
- t1_field_fixed_array,
- t1_field_callback,
-
- /* do not remove */
- t1_field_max
-
- } CID_Field_Type;
-
- typedef enum CID_Field_Location_
- {
- t1_field_cid_info,
- t1_field_font_dict,
- t1_field_font_info,
- t1_field_private,
-
- /* do not remove */
- t1_field_location_max
-
- } CID_Field_Location;
-
-
- typedef FT_Error (*CID_Field_Parser)( CID_Face face,
- CID_Parser* parser );
-
- /* structure type used to model object fields */
- typedef struct CID_Field_Rec_
- {
- const char* ident; /* field identifier */
- CID_Field_Location location;
- CID_Field_Type type; /* type of field */
- CID_Field_Parser reader;
- FT_UInt offset; /* offset of field in object */
- FT_UInt size; /* size of field in bytes */
- FT_UInt array_max; /* maximal number of elements for */
- /* array */
- FT_UInt count_offset; /* offset of element count for */
- /* arrays */
- } CID_Field_Rec;
-
-
-#define CID_FIELD_REF( s, f ) ( ((s*)0)->f )
-
-#define CID_NEW_SIMPLE_FIELD( _ident, _type, _fname ) \
- { \
- _ident, T1CODE, _type, \
- 0, \
- (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \
- sizeof ( CID_FIELD_REF( T1TYPE, _fname ) ), \
- 0, 0 \
- },
-
-#define CID_NEW_CALLBACK_FIELD( _ident, _reader ) \
- { \
- _ident, T1CODE, t1_field_callback, \
- _reader, \
- 0, 0, \
- 0, 0 \
- },
-
-#define CID_NEW_TABLE_FIELD( _ident, _type, _fname, _max ) \
- { \
- _ident, T1CODE, _type, \
- 0, \
- (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \
- sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \
- _max, \
- (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, num_ ## _fname ) \
- },
-
-#define CID_NEW_TABLE_FIELD2( _ident, _type, _fname, _max ) \
- { \
- _ident, T1CODE, _type, \
- 0, \
- (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \
- sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \
- _max, 0 \
- },
-
-
-#define CID_FIELD_BOOL( _ident, _fname ) \
- CID_NEW_SIMPLE_FIELD( _ident, t1_field_bool, _fname )
-
-#define CID_FIELD_NUM( _ident, _fname ) \
- CID_NEW_SIMPLE_FIELD( _ident, t1_field_integer, _fname )
-
-#define CID_FIELD_FIXED( _ident, _fname ) \
- CID_NEW_SIMPLE_FIELD( _ident, t1_field_fixed, _fname )
-
-#define CID_FIELD_STRING( _ident, _fname ) \
- CID_NEW_SIMPLE_FIELD( _ident, t1_field_string, _fname )
-
-#define CID_FIELD_NUM_TABLE( _ident, _fname, _fmax ) \
- CID_NEW_TABLE_FIELD( _ident, t1_field_integer_array, \
- _fname, _fmax )
-
-#define CID_FIELD_FIXED_TABLE( _ident, _fname, _fmax ) \
- CID_NEW_TABLE_FIELD( _ident, t1_field_fixed_array, \
- _fname, _fmax )
-
-#define CID_FIELD_NUM_TABLE2( _ident, _fname, _fmax ) \
- CID_NEW_TABLE_FIELD2( _ident, t1_field_integer_array, \
- _fname, _fmax )
-
-#define CID_FIELD_FIXED_TABLE2( _ident, _fname, _fmax ) \
- CID_NEW_TABLE_FIELD2( _ident, t1_field_fixed_array, \
- _fname, _fmax )
-
-#define CID_FIELD_CALLBACK( _ident, _name ) \
- CID_NEW_CALLBACK_FIELD( _ident, parse_ ## _name )
-
-
- LOCAL_DEF
- FT_Error CID_Load_Field( CID_Parser* parser,
- const CID_Field_Rec* field,
- void* object );
-
- LOCAL_DEF
- FT_Error CID_Load_Field_Table( CID_Parser* parser,
- const CID_Field_Rec* field,
- void* object );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* CIDPARSE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidriver.c */
-/* */
-/* CID driver interface (body). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidriver.h"
-#include "cidgload.h"
-
-#else
-
-#include <cid/cidriver.h>
-#include <cid/cidgload.h>
-
-#endif
-
-
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/psnames.h>
-
-#include <string.h> /* for strcmp() */
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_ciddriver
-
-
- static
- FT_Module_Interface CID_Get_Interface( FT_Driver driver,
- const FT_String* interface )
- {
- FT_UNUSED( driver );
- FT_UNUSED( interface );
-
- return 0;
- }
-
-
-#if 0 /* unimplemented yet */
-
- static
- FT_Error cid_Get_Kerning( T1_Face face,
- FT_UInt left_glyph,
- FT_UInt right_glyph,
- FT_Vector* kerning )
- {
- CID_AFM* afm;
-
-
- kerning->x = 0;
- kerning->y = 0;
-
- afm = (CID_AFM*)face->afm_data;
- if ( afm )
- CID_Get_Kerning( afm, left_glyph, right_glyph, kerning );
-
- return T1_Err_Ok;
- }
-
-
-#endif /* 0 */
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* Cid_Get_Char_Index */
- /* */
- /* <Description> */
- /* Uses a charmap to return a given character code's glyph index. */
- /* */
- /* <Input> */
- /* charmap :: A handle to the source charmap object. */
- /* */
- /* charcode :: The character code. */
- /* */
- /* <Return> */
- /* Glyph index. 0 means `undefined character code'. */
- /* */
- static
- FT_UInt CID_Get_Char_Index( FT_CharMap charmap,
- FT_Long charcode )
- {
- T1_Face face;
- FT_UInt result = 0;
- PSNames_Interface* psnames;
-
-
- face = (T1_Face)charmap->face;
- psnames = (PSNames_Interface*)face->psnames;
- if ( psnames )
- switch ( charmap->encoding )
- {
- /*******************************************************************/
- /* */
- /* Unicode encoding support */
- /* */
- case ft_encoding_unicode:
- /* use the `PSNames' module to synthetize the Unicode charmap */
- result = psnames->lookup_unicode( &face->unicode_map,
- (FT_ULong)charcode );
-
- /* the function returns 0xFFFF if the Unicode charcode has */
- /* no corresponding glyph. */
- if ( result == 0xFFFF )
- result = 0;
- goto Exit;
-
- /*******************************************************************/
- /* */
- /* Custom Type 1 encoding */
- /* */
- case ft_encoding_adobe_custom:
- {
- T1_Encoding* encoding = &face->type1.encoding;
-
-
- if ( charcode >= encoding->code_first &&
- charcode <= encoding->code_last )
- result = encoding->char_index[charcode];
- goto Exit;
- }
-
- /*******************************************************************/
- /* */
- /* Adobe Standard & Expert encoding support */
- /* */
- default:
- if ( charcode < 256 )
- {
- FT_UInt code;
- FT_Int n;
- const char* glyph_name;
-
-
- code = psnames->adobe_std_encoding[charcode];
- if ( charmap->encoding == ft_encoding_adobe_expert )
- code = psnames->adobe_expert_encoding[charcode];
-
- glyph_name = psnames->adobe_std_strings( code );
- if ( !glyph_name )
- break;
-
- for ( n = 0; n < face->type1.num_glyphs; n++ )
- {
- const char* gname = face->type1.glyph_names[n];
-
-
- if ( gname && gname[0] == glyph_name[0] &&
- strcmp( gname, glyph_name ) == 0 )
- {
- result = n;
- break;
- }
- }
- }
- }
-
- Exit:
- return result;
- }
-
-
- const FT_Driver_Class t1cid_driver_class =
- {
- /* first of all, the FT_Module_Class fields */
- {
- ft_module_font_driver | ft_module_driver_scalable,
- sizeof( FT_DriverRec ),
- "t1cid", /* module name */
- 0x10000L, /* version 1.0 of driver */
- 0x20000L, /* requires FreeType 2.0 */
-
- 0,
-
- (FT_Module_Constructor)CID_Init_Driver,
- (FT_Module_Destructor) CID_Done_Driver,
- (FT_Module_Requester) CID_Get_Interface
- },
-
- /* then the other font drivers fields */
- sizeof( CID_FaceRec ),
- sizeof( CID_SizeRec ),
- sizeof( CID_GlyphSlotRec ),
-
- (FTDriver_initFace) CID_Init_Face,
- (FTDriver_doneFace) CID_Done_Face,
-
- (FTDriver_initSize) 0,
- (FTDriver_doneSize) 0,
- (FTDriver_initGlyphSlot)0,
- (FTDriver_doneGlyphSlot)0,
-
- (FTDriver_setCharSizes) 0,
- (FTDriver_setPixelSizes)0,
-
- (FTDriver_loadGlyph) CID_Load_Glyph,
- (FTDriver_getCharIndex) CID_Get_Char_Index,
-
- (FTDriver_getKerning) 0,
- (FTDriver_attachFile) 0,
-
- (FTDriver_getAdvances) 0
- };
-
-
-#ifdef FT_CONFIG_OPTION_DYNAMIC_DRIVERS
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* getDriverClass */
- /* */
- /* <Description> */
- /* This function is used when compiling the TrueType driver as a */
- /* shared library (`.DLL' or `.so'). It will be used by the */
- /* high-level library of FreeType to retrieve the address of the */
- /* driver's generic interface. */
- /* */
- /* It shouldn't be implemented in a static build, as each driver must */
- /* have the same function as an exported entry point. */
- /* */
- /* <Return> */
- /* The address of the TrueType's driver generic interface. The */
- /* format-specific interface can then be retrieved through the method */
- /* interface->get_format_interface. */
- /* */
- EXPORT_FUNC( FT_Driver_Class* ) getDriverClass( void )
- {
- return &t1cid_driver_class;
- }
-
-
-#endif /* CONFIG_OPTION_DYNAMIC_DRIVERS */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidriver.h */
-/* */
-/* High-level CID driver interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef CIDRIVER_H
-#define CIDRIVER_H
-
-#include <freetype/internal/ftdriver.h>
-
- FT_EXPORT_VAR( const FT_Driver_Class ) t1cid_driver_class;
-
-#endif /* CIDRIVER_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cidtokens.h */
-/* */
-/* CID token definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#undef T1TYPE
-#undef T1CODE
-#define T1TYPE CID_Info
-#define T1CODE t1_field_cid_info
-
- CID_FIELD_STRING ( "CIDFontName", cid_font_name )
- CID_FIELD_NUM ( "CIDFontVersion", cid_version )
- CID_FIELD_NUM ( "CIDFontType", cid_font_type )
- CID_FIELD_STRING ( "Registry", registry )
- CID_FIELD_STRING ( "Ordering", ordering )
- CID_FIELD_NUM ( "Supplement", supplement )
- CID_FIELD_CALLBACK( "FontBBox", font_bbox )
- CID_FIELD_NUM ( "UIDBase", uid_base )
- CID_FIELD_CALLBACK( "FDArray", fd_array )
- CID_FIELD_NUM ( "CIDMapOffset", cidmap_offset )
- CID_FIELD_NUM ( "FDBytes", fd_bytes )
- CID_FIELD_NUM ( "GDBytes", gd_bytes )
- CID_FIELD_NUM ( "CIDCount", cid_count )
-
-
-#undef T1TYPE
-#undef T1CODE
-#define T1TYPE T1_FontInfo
-#define T1CODE t1_field_font_info
-
- CID_FIELD_STRING( "version", version )
- CID_FIELD_STRING( "Notice", notice )
- CID_FIELD_STRING( "FullName", full_name )
- CID_FIELD_STRING( "FamilyName", family_name )
- CID_FIELD_STRING( "Weight", weight )
- CID_FIELD_FIXED ( "ItalicAngle", italic_angle )
- CID_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch )
- CID_FIELD_NUM ( "UnderlinePosition", underline_position )
- CID_FIELD_NUM ( "UnderlineThickness", underline_thickness )
-
-
-#undef T1TYPE
-#undef T1CODE
-#define T1TYPE CID_FontDict
-#define T1CODE t1_field_font_dict
-
- CID_FIELD_CALLBACK( "FontMatrix", font_matrix )
- CID_FIELD_NUM ( "PaintType", paint_type )
- CID_FIELD_NUM ( "FontType", font_type )
- CID_FIELD_NUM ( "SubrMapOffset", subrmap_offset )
- CID_FIELD_NUM ( "SDBytes", sd_bytes )
- CID_FIELD_NUM ( "SubrCount", num_subrs )
- CID_FIELD_NUM ( "lenBuildCharArray", len_buildchar )
- CID_FIELD_FIXED ( "ForceBoldThreshold", forcebold_threshold )
- CID_FIELD_FIXED ( "ExpansionFactor", expansion_factor )
- CID_FIELD_NUM ( "StrokeWidth", stroke_width )
-
-
-#undef T1TYPE
-#undef T1CODE
-#define T1TYPE T1_Private
-#define T1CODE t1_field_private
-
- CID_FIELD_NUM ( "UniqueID", unique_id )
- CID_FIELD_NUM ( "lenIV", lenIV )
- CID_FIELD_NUM ( "LanguageGroup", language_group )
- CID_FIELD_NUM ( "password", password )
-
- CID_FIELD_FIXED ( "BlueScale", blue_scale )
- CID_FIELD_NUM ( "BlueShift", blue_shift )
- CID_FIELD_NUM ( "BlueFuzz", blue_fuzz )
-
- CID_FIELD_NUM_TABLE ( "BlueValues", blue_values, 14 )
- CID_FIELD_NUM_TABLE ( "OtherBlues", other_blues, 10 )
- CID_FIELD_NUM_TABLE ( "FamilyBlues", family_blues, 14 )
- CID_FIELD_NUM_TABLE ( "FamilyOtherBlues", family_other_blues, 10 )
-
- CID_FIELD_NUM_TABLE2( "StdHW", standard_width, 1 )
- CID_FIELD_NUM_TABLE2( "StdVW", standard_height, 1 )
- CID_FIELD_NUM_TABLE2( "MinFeature", min_feature, 2 )
-
- CID_FIELD_NUM_TABLE ( "StemSnapH", snap_widths, 12 )
- CID_FIELD_NUM_TABLE ( "StemSnapV", snap_heights, 12 )
-
-
-/* END */
+++ /dev/null
-make_module_list: add_type1cid_driver
-
-add_type1cid_driver:
- $(OPEN_DRIVER)t1cid_driver_class$(CLOSE_DRIVER)
- $(ECHO_DRIVER)cid $(ECHO_DRIVER_DESC)Postscript CID-keyed fonts, no known extension$(ECHO_DRIVER_DONE)
-# EOF
+++ /dev/null
-#
-# FreeType 2 CID driver configuration rules
-#
-
-
-# Copyright 1996-2000 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# CID driver directory
-#
-CID_DIR := $(SRC_)cid
-CID_DIR_ := $(CID_DIR)$(SEP)
-
-
-CID_COMPILE := $(FT_COMPILE)
-
-
-# CID driver sources (i.e., C files)
-#
-CID_DRV_SRC := $(CID_DIR_)cidparse.c \
- $(CID_DIR_)cidload.c \
- $(CID_DIR_)cidriver.c \
- $(CID_DIR_)cidgload.c \
- $(CID_DIR_)cidobjs.c
-
-# CID driver headers
-#
-CID_DRV_H := $(CID_DRV_SRC:%.c=%.h) \
- $(CID_DIR_)cidtokens.h
-
-
-# CID driver object(s)
-#
-# CID_DRV_OBJ_M is used during `multi' builds
-# CID_DRV_OBJ_S is used during `single' builds
-#
-CID_DRV_OBJ_M := $(CID_DRV_SRC:$(CID_DIR_)%.c=$(OBJ_)%.$O)
-CID_DRV_OBJ_S := $(OBJ_)type1cid.$O
-
-# CID driver source file for single build
-#
-CID_DRV_SRC_S := $(CID_DIR_)type1cid.c
-
-
-# CID driver - single object
-#
-$(CID_DRV_OBJ_S): $(CID_DRV_SRC_S) $(CID_DRV_SRC) $(FREETYPE_H) $(CID_DRV_H)
- $(CID_COMPILE) $T$@ $(CID_DRV_SRC_S)
-
-
-# CID driver - multiple objects
-#
-$(OBJ_)%.$O: $(CID_DIR_)%.c $(FREETYPE_H) $(CID_DRV_H)
- $(CID_COMPILE) $T$@ $<
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(CID_DRV_OBJ_S)
-DRV_OBJS_M += $(CID_DRV_OBJ_M)
-
-# EOF
+++ /dev/null
-/***************************************************************************/
-/* */
-/* cff.c */
-/* */
-/* FreeType OpenType driver component (body only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#define FT_MAKE_OPTION_SINGLE_OBJECT
-
-#ifdef FT_FLAT_COMPILE
-
-#include "cidparse.c"
-#include "cidload.c"
-#include "cidobjs.c"
-#include "cidriver.c"
-#include "cidgload.c"
-
-#else
-
-#include <cid/cidparse.c>
-#include <cid/cidload.c>
-#include <cid/cidobjs.c>
-#include <cid/cidriver.c>
-#include <cid/cidgload.c>
-
-#endif
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftconfig.h */
-/* */
-/* ANSI-specific configuration file (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This header file contains a number of macro definitions that are used */
- /* by the rest of the engine. Most of the macros here are automatically */
- /* determined at compile time, and you should not need to change it to */
- /* port FreeType, except to compile the library with a non-ANSI */
- /* compiler. */
- /* */
- /* Note however that if some specific modifications are needed, we */
- /* advise you to place a modified copy in your build directory. */
- /* */
- /* The build directory is usually `freetype/builds/<system>', and */
- /* contains system-specific files that are always included first when */
- /* building the library. */
- /* */
- /* This ANSI version should stay in `include/freetype/config'. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTCONFIG_H
-#define FTCONFIG_H
-
-
- /* Include the header file containing all developer build options */
-#include <freetype/config/ftoption.h>
-
-
- /*************************************************************************/
- /* */
- /* PLATFORM-SPECIFIC CONFIGURATION MACROS */
- /* */
- /* These macros can be toggled to suit a specific system. The current */
- /* ones are defaults used to compile FreeType in an ANSI C environment */
- /* (16bit compilers are also supported). Copy this file to your own */
- /* `freetype/builds/<system>' directory, and edit it to port the engine. */
- /* */
- /*************************************************************************/
-
-
- /* We use <limits.h> values to know the sizes of the types. */
-#include <limits.h>
-
- /* The number of bytes in an `int' type. */
-#if UINT_MAX == 0xFFFFFFFF
-#define FT_SIZEOF_INT 4
-#elif UINT_MAX == 0xFFFF
-#define FT_SIZEOF_INT 2
-#elif UINT_MAX > 0xFFFFFFFF && UINT_MAX == 0xFFFFFFFFFFFFFFFF
-#define FT_SIZEOF_INT 8
-#else
-#error "Unsupported number of bytes in `int' type!"
-#endif
-
- /* The number of bytes in a `long' type. */
-#if ULONG_MAX == 0xFFFFFFFF
-#define FT_SIZEOF_LONG 4
-#elif ULONG_MAX > 0xFFFFFFFF && ULONG_MAX == 0xFFFFFFFFFFFFFFFF
-#define FT_SIZEOF_LONG 8
-#else
-#error "Unsupported number of bytes in `long' type!"
-#endif
-
-
- /* Preferred alignment of data */
-#define FT_ALIGNMENT 8
-
-
- /* UNUSED is a macro used to indicate that a given parameter is not used */
- /* -- this is only used to get rid of unpleasant compiler warnings */
-#ifndef FT_UNUSED
-#define FT_UNUSED( arg ) ( (arg) = (arg) )
-#endif
-
-
- /*************************************************************************/
- /* */
- /* AUTOMATIC CONFIGURATION MACROS */
- /* */
- /* These macros are computed from the ones defined above. Don't touch */
- /* their definition, unless you know precisely what you are doing. No */
- /* porter should need to mess with them. */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* IntN types */
- /* */
- /* Used to guarantee the size of some specific integers. */
- /* */
- typedef signed short FT_Int16;
- typedef unsigned short FT_UInt16;
-
-#if FT_SIZEOF_INT == 4
-
- typedef signed int FT_Int32;
- typedef unsigned int FT_UInt32;
-
-#elif FT_SIZEOF_LONG == 4
-
- typedef signed long FT_Int32;
- typedef unsigned long FT_UInt32;
-
-#else
-#error "no 32bit type found -- please check your configuration files"
-#endif
-
-#if FT_SIZEOF_LONG == 8
-
- /* FT_LONG64 must be defined if a 64-bit type is available */
-#define FT_LONG64
-#define FT_INT64 long
-
-#else
-
-
- /*************************************************************************/
- /* */
- /* Many compilers provide the non-ANSI `long long' 64-bit type. You can */
- /* activate it by defining the FTCALC_USE_LONG_LONG macro in */
- /* `ftoption.h'. */
- /* */
- /* Note that this will produce many -ansi warnings during library */
- /* compilation, and that in many cases, the generated code will be */
- /* neither smaller nor faster! */
- /* */
-#ifdef FTCALC_USE_LONG_LONG
-
-#define FT_LONG64
-#define FT_INT64 long long
-
-#endif /* FTCALC_USE_LONG_LONG */
-#endif /* FT_SIZEOF_LONG == 8 */
-
-
-#ifdef FT_MAKE_OPTION_SINGLE_OBJECT
-#define LOCAL_DEF static
-#define LOCAL_FUNC static
-#else
-#define LOCAL_DEF extern
-#define LOCAL_FUNC /* nothing */
-#endif
-
-#ifdef FT_MAKE_OPTION_SINGLE_LIBRARY_OBJECT
-#define BASE_DEF( x ) static x
-#define BASE_FUNC( x ) static x
-#else
-#define BASE_DEF( x ) extern x
-#define BASE_FUNC( x ) extern x
-#endif
-
-#ifndef FT_EXPORT_DEF
-#define FT_EXPORT_DEF( x ) extern x
-#endif
-
-#ifndef FT_EXPORT_FUNC
-#define FT_EXPORT_FUNC( x ) extern x
-#endif
-
-#ifndef FT_EXPORT_VAR
-#define FT_EXPORT_VAR( x ) extern x
-#endif
-
-#endif /* FTCONFIG_H */
-
-
-/* END */
+++ /dev/null
-FT_USE_MODULE(autohint_module_class)
-FT_USE_MODULE(cff_driver_class)
-FT_USE_MODULE(t1cid_driver_class)
-FT_USE_MODULE(psnames_module_class)
-FT_USE_MODULE(ft_raster1_renderer_class)
-FT_USE_MODULE(sfnt_module_class)
-FT_USE_MODULE(ft_smooth_renderer_class)
-FT_USE_MODULE(tt_driver_class)
-FT_USE_MODULE(t1_driver_class)
-FT_USE_MODULE(winfnt_driver_class)
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftoption.h */
-/* */
-/* User-selectable configuration macros (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTOPTION_H
-#define FTOPTION_H
-
-
- /*************************************************************************/
- /* */
- /* USER-SELECTABLE CONFIGURATION MACROS */
- /* */
- /* These macros can be toggled by developers to enable or disable */
- /* certain aspects of FreeType. This is a default file, where all major */
- /* options are enabled. */
- /* */
- /* Note that if some modifications are required for your build, we */
- /* advise you to put a modified copy of this file in your build */
- /* directory, rather than modifying it in-place. */
- /* */
- /* The build directory is normally `freetype/builds/<system>' and */
- /* contains build or system-specific files that are included in */
- /* priority when building the library. */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* Convenience functions support */
- /* */
- /* Some functions of the FreeType 2 API are provided as a convenience */
- /* for client applications and developers. However, they are not */
- /* required to build and run the library itself. */
- /* */
- /* By defining this configuration macro, you'll disable the */
- /* compilation of these functions at build time. This can be useful */
- /* to reduce the library's code size when you don't need any of */
- /* these functions. */
- /* */
- /* All convenience functions are declared as such in their */
- /* documentation. */
- /* */
-#undef FT_CONFIG_OPTION_NO_CONVENIENCE_FUNCS
-
-
- /*************************************************************************/
- /* */
- /* Alternate Glyph Image Format support */
- /* */
- /* By default, the glyph images returned by the FreeType glyph loader */
- /* can either be a pixmap or a vectorial outline defined through */
- /* Bezier control points. When defining the following configuration */
- /* macro, some font drivers will be able to register alternate */
- /* glyph image formats. */
- /* */
- /* Unset this macro if you are sure that you will never use a font */
- /* driver with an alternate glyph format; this will reduce the size of */
- /* the base layer code. */
- /* */
- /* Note that a few Type 1 fonts, as well as Windows `vector' fonts */
- /* use a vector `plotter' format that isn't supported when this */
- /* macro is undefined. */
- /* */
-#define FT_CONFIG_OPTION_ALTERNATE_GLYPH_FORMATS
-
-
- /*************************************************************************/
- /* */
- /* Glyph Postscript Names handling */
- /* */
- /* By default, FreeType 2 is compiled with the `PSNames' module. This */
- /* This module is in charge of converting a glyph name string into a */
- /* Unicode value, or return a Macintosh standard glyph name for the */
- /* use with the TrueType `post' table. */
- /* */
- /* Undefine this macro if you do not want `PSNames' compiled in your */
- /* build of FreeType. This has the following effects: */
- /* */
- /* - The TrueType driver will provide its own set of glyph names, */
- /* if you build it to support postscript names in the TrueType */
- /* `post' table. */
- /* */
- /* - The Type 1 driver will not be able to synthetize a Unicode */
- /* charmap out of the glyphs found in the fonts. */
- /* */
- /* You would normally undefine this configuration macro when building */
- /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */
- /* */
-#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
-
-
- /*************************************************************************/
- /* */
- /* Postscript Names to Unicode Values support */
- /* */
- /* By default, FreeType 2 is built with the `PSNames' module compiled */
- /* in. Among other things, the module is used to convert a glyph name */
- /* into a Unicode value. This is especially useful in order to */
- /* synthetize on the fly a Unicode charmap from the CFF/Type 1 driver */
- /* through a big table named the `Adobe Glyph List' (AGL). */
- /* */
- /* Undefine this macro if you do not want the Adobe Glyph List */
- /* compiled in your `PSNames' module. The Type 1 driver will not be */
- /* able to synthetize a Unicode charmap out of the glyphs found in the */
- /* fonts. */
- /* */
-#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
-
-
- /*************************************************************************/
- /* */
- /* Many compilers provide the non-ANSI `long long' 64-bit type. You can */
- /* activate it by defining the FTCALC_USE_LONG_LONG macro. Note that */
- /* this will produce many -ansi warnings during library compilation, and */
- /* that in many cases the generated code will not be smaller or faster! */
- /* */
-#undef FTCALC_USE_LONG_LONG
-
-
- /*************************************************************************/
- /* */
- /* DLL export compilation */
- /* */
- /* When compiling FreeType as a DLL, some systems/compilers need a */
- /* special keyword in front OR after the return type of function */
- /* declarations. */
- /* */
- /* Two macros are used within the FreeType source code to define */
- /* exported library functions: FT_EXPORT_DEF and FT_EXPORT_FUNC. */
- /* */
- /* FT_EXPORT_DEF( return_type ) */
- /* */
- /* is used in a function declaration, as in */
- /* */
- /* FT_EXPORT_DEF( FT_Error ) */
- /* FT_Init_FreeType( FT_Library* alibrary ); */
- /* */
- /* */
- /* FT_EXPORT_FUNC( return_type ) */
- /* */
- /* is used in a function definition, as in */
- /* */
- /* FT_EXPORT_FUNC( FT_Error ) */
- /* FT_Init_FreeType( FT_Library* alibrary ) */
- /* { */
- /* ... some code ... */
- /* return FT_Err_Ok; */
- /* } */
- /* */
- /* You can provide your own implementation of FT_EXPORT_DEF and */
- /* FT_EXPORT_FUNC here if you want. If you leave them undefined, they */
- /* will be later automatically defined as `extern return_type' to */
- /* allow normal compilation. */
- /* */
-#undef FT_EXPORT_DEF
-#undef FT_EXPORT_FUNC
-
-
- /*************************************************************************/
- /* */
- /* Debug level */
- /* */
- /* FreeType can be compiled in debug or trace mode. In debug mode, */
- /* errors are reported through the `ftdebug' component. In trace */
- /* mode, additional messages are sent to the standard output during */
- /* execution. */
- /* */
- /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */
- /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */
- /* */
- /* Don't define any of these macros to compile in `release' mode! */
- /* */
-#define FT_DEBUG_LEVEL_ERROR
-#define FT_DEBUG_LEVEL_TRACE
-
-
- /*************************************************************************/
- /* */
- /* Computation Algorithms */
- /* */
- /* Used for debugging, this configuration macro should disappear */
- /* soon. */
- /* */
-#define FT_CONFIG_OPTION_OLD_CALCS
-
-
- /*************************************************************************/
- /* */
- /* The size in bytes of the render pool used by the scan-line converter */
- /* to do all of its work. */
- /* */
- /* This must be greater than 4kByte. */
- /* */
-#define FT_RENDER_POOL_SIZE 16384
-
-
- /*************************************************************************/
- /* */
- /* FT_MAX_MODULES */
- /* */
- /* The maximum number of modules that can be registered in a single */
- /* FreeType library object. 16 is the default. */
- /* */
-#define FT_MAX_MODULES 16
-
-
- /*************************************************************************/
- /* */
- /* FT_MAX_EXTENSIONS */
- /* */
- /* The maximum number of extensions that can be registered in a single */
- /* font driver. 8 is the default. */
- /* */
- /* If you don't know what this means, you certainly do not need to */
- /* change this value. */
- /* */
-#define FT_MAX_EXTENSIONS 8
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** S F N T D R I V E R C O N F I G U R A T I O N ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */
- /* embedded bitmaps in all formats using the SFNT module (namely */
- /* TrueType & OpenType). */
- /* */
-#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
-
-
- /*************************************************************************/
- /* */
- /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */
- /* load and enumerate the glyph Postscript names in a TrueType or */
- /* OpenType file. */
- /* */
- /* Note that when you do not compile the `PSNames' module by undefining */
- /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */
- /* contain additional code used to read the PS Names table from a font. */
- /* */
- /* (By default, the module uses `PSNames' to extract glyph names.) */
- /* */
-#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
-
-
- /*************************************************************************/
- /* */
- /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */
- /* access the internal name table in a SFNT-based format like TrueType */
- /* or OpenType. The name table contains various strings used to */
- /* describe the font, like family name, copyright, version, etc. It */
- /* does not contain any glyph name though. */
- /* */
- /* Accessing SFNT names is done through the functions declared in */
- /* `freetype/ftnames.h'. */
- /* */
-#define TT_CONFIG_OPTION_SFNT_NAMES
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */
- /* a bytecode interpreter in the TrueType driver. Note that there are */
- /* important patent issues related to the use of the interpreter. */
- /* */
- /* By undefining this, you will only compile the code necessary to load */
- /* TrueType glyphs without hinting. */
- /* */
-#undef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
-
-
- /*************************************************************************/
- /* */
- /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
- /* bytecode interpreter with a huge switch statement, rather than a call */
- /* table. This results in smaller and faster code for a number of */
- /* architectures. */
- /* */
- /* Note however that on some compiler/processor combinations, undefining */
- /* this macro will generate faster, though larger, code. */
- /* */
-#define TT_CONFIG_OPTION_INTERPRETER_SWITCH
-
-
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* T1_MAX_STACK_DEPTH is the maximal depth of the token stack used by */
- /* the Type 1 parser (see t1load.c). A minimum of 16 is required. */
- /* */
-#define T1_MAX_STACK_DEPTH 16
-
-
- /*************************************************************************/
- /* */
- /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
- /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */
- /* required. */
- /* */
-#define T1_MAX_DICT_DEPTH 5
-
-
- /*************************************************************************/
- /* */
- /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
- /* calls during glyph loading. */
- /* */
-#define T1_MAX_SUBRS_CALLS 8
-
-
- /*************************************************************************/
- /* */
- /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. */
- /* */
-#define T1_MAX_CHARSTRINGS_OPERANDS 32
-
-
- /*************************************************************************/
- /* */
- /* Define T1_CONFIG_OPTION_DISABLE_HINTER if you want to generate a */
- /* driver with no hinter. This can be useful to debug the parser. */
- /* */
-#undef T1_CONFIG_OPTION_DISABLE_HINTER
-
-
- /*************************************************************************/
- /* */
- /* Define this configuration macro if you want to prevent the */
- /* compilation of `t1afm', which is in charge of reading Type 1 AFM */
- /* files into an existing face. Note that if set, the T1 driver will be */
- /* unable to produce kerning distances. */
- /* */
-#undef T1_CONFIG_OPTION_NO_AFM
-
-
- /*************************************************************************/
- /* */
- /* Define this configuration macro if you want to prevent the */
- /* compilation of the Multiple Masters font support in the Type 1 */
- /* driver. */
- /* */
-#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
-
-
-#endif /* FTOPTION_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* freetype.h */
-/* */
-/* FreeType high-level API and common types (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FREETYPE_H
-#define FREETYPE_H
-
-
- /*************************************************************************/
- /* */
- /* The `raster' component duplicates some of the declarations in */
- /* freetype.h for stand-alone use if _FREETYPE_ isn't defined. */
- /* */
-#define _FREETYPE_
-
-
- /*************************************************************************/
- /* */
- /* The FREETYPE_MAJOR and FREETYPE_MINOR macros are used to version the */
- /* new FreeType design, which is able to host several kinds of font */
- /* drivers. It starts at 2.0. */
- /* */
-#define FREETYPE_MAJOR 2
-#define FREETYPE_MINOR 0
-
-
-#include <freetype/config/ftconfig.h> /* read configuration information */
-#include <freetype/fterrors.h>
-#include <freetype/fttypes.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /*************************************************************************/
- /* */
- /* B A S I C T Y P E S */
- /* */
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Glyph_Metrics */
- /* */
- /* <Description> */
- /* A structure used to model the metrics of a single glyph. Note */
- /* that values are expressed in 26.6 fractional pixel format or in */
- /* font units, depending on context. */
- /* */
- /* <Fields> */
- /* width :: The glyph's width. */
- /* */
- /* height :: The glyph's height. */
- /* */
- /* horiBearingX :: Horizontal left side bearing. */
- /* */
- /* horiBearingY :: Horizontal top side bearing. */
- /* */
- /* horiAdvance :: Horizontal advance width. */
- /* */
- /* vertBearingX :: Vertical left side bearing. */
- /* */
- /* vertBearingY :: Vertical top side bearing. */
- /* */
- /* vertAdvance :: Vertical advance height. */
- /* */
- typedef struct FT_Glyph_Metrics_
- {
- FT_Pos width; /* glyph width */
- FT_Pos height; /* glyph height */
-
- FT_Pos horiBearingX; /* left side bearing in horizontal layouts */
- FT_Pos horiBearingY; /* top side bearing in horizontal layouts */
- FT_Pos horiAdvance; /* advance width for horizontal layout */
-
- FT_Pos vertBearingX; /* left side bearing in vertical layouts */
- FT_Pos vertBearingY; /* top side bearing in vertical layouts */
- FT_Pos vertAdvance; /* advance height for vertical layout */
-
- } FT_Glyph_Metrics;
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Generic_Finalizer */
- /* */
- /* <Description> */
- /* Describes a function used to destroy the `client' data of any */
- /* FreeType object. See the description of the FT_Generic type for */
- /* details of usage. */
- /* */
- /* <Input> */
- /* The address of the FreeType object which is under finalization. */
- /* Its client data is accessed through its `generic' field. */
- /* */
- typedef void (*FT_Generic_Finalizer)(void* object);
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Generic */
- /* */
- /* <Description> */
- /* Client applications often need to associate their own data to a */
- /* variety of FreeType core objects. For example, a text layout API */
- /* might want to associate a glyph cache to a given size object. */
- /* */
- /* Most FreeType object contains a `generic' field, of type */
- /* FT_Generic, which usage is left to client applications and font */
- /* servers. */
- /* */
- /* It can be used to store a pointer to client-specific data, as well */
- /* as the address of a `finalizer' function, which will be called by */
- /* FreeType when the object is destroyed (for example, the previous */
- /* client example would put the address of the glyph cache destructor */
- /* in the `finalizer' field). */
- /* */
- /* <Fields> */
- /* data :: A typeless pointer to any client-specified data. This */
- /* field is completely ignored by the FreeType library. */
- /* */
- /* finalizer :: A pointer to a `generic finalizer' function, which */
- /* will be called when the object is destroyed. If this */
- /* field is set to NULL, no code will be called. */
- /* */
- typedef struct FT_Generic_
- {
- void* data;
- FT_Generic_Finalizer finalizer;
-
- } FT_Generic;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Bitmap_Size */
- /* */
- /* <Description> */
- /* An extremely simple structure used to model the size of a bitmap */
- /* strike (i.e., a bitmap instance of the font for a given */
- /* resolution) in a fixed-size font face. This is used for the */
- /* `available_sizes' field of the FT_Face_Properties structure. */
- /* */
- /* <Fields> */
- /* height :: The character height in pixels. */
- /* */
- /* width :: The character width in pixels. */
- /* */
- typedef struct FT_Bitmap_Size_
- {
- FT_Short height;
- FT_Short width;
-
- } FT_Bitmap_Size;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /* */
- /* O B J E C T C L A S S E S */
- /* */
- /*************************************************************************/
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Library */
- /* */
- /* <Description> */
- /* A handle to a FreeType library instance. Each `library' is */
- /* completely independent from the others; it is the `root' of a set */
- /* of objects like fonts, faces, sizes, etc. */
- /* */
- /* It also embeds a system object (see FT_System), as well as a */
- /* scan-line converter object (see FT_Raster). */
- /* */
- /* <Note> */
- /* Library objects are created through FT_Init_FreeType(). */
- /* */
- typedef struct FT_LibraryRec_ *FT_Library;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Module */
- /* */
- /* <Description> */
- /* A handle to a given FreeType module object. Each module can be a */
- /* font driver, a renderer, or anything else that provides services */
- /* to the formers. */
- /* */
- typedef struct FT_ModuleRec_* FT_Module;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Driver */
- /* */
- /* <Description> */
- /* A handle to a given FreeType font driver object. Each font driver */
- /* is able to create faces, sizes, glyph slots, and charmaps from the */
- /* resources whose format it supports. */
- /* */
- /* A driver can support either bitmap, graymap, or scalable font */
- /* formats. */
- /* */
- typedef struct FT_DriverRec_* FT_Driver;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Renderer */
- /* */
- /* <Description> */
- /* A handle to a given FreeType renderer. A renderer is in charge of */
- /* converting a glyph image to a bitmap, when necessary. Each */
- /* supports a given glyph image format, and one or more target */
- /* surface depths. */
- /* */
- typedef struct FT_RendererRec_* FT_Renderer;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Face */
- /* */
- /* <Description> */
- /* A handle to a given driver face object. A face object contains */
- /* all the instance and glyph independent data of a font file */
- /* typeface. */
- /* */
- /* A face object is created from a resource object through the */
- /* new_face() method of a given driver. */
- /* */
- typedef struct FT_FaceRec_* FT_Face;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Size */
- /* */
- /* <Description> */
- /* A handle to a given driver size object. Such an object models the */
- /* _resolution_ AND _size_ dependent state of a given driver face */
- /* size. */
- /* */
- /* A size object is always created from a given face object. It is */
- /* discarded automatically by its parent face. */
- /* */
- typedef struct FT_SizeRec_* FT_Size;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_GlyphSlot */
- /* */
- /* <Description> */
- /* A handle to a given `glyph slot'. A slot is a container where it */
- /* is possible to load any of the glyphs contained within its parent */
- /* face. */
- /* */
- /* A glyph slot is created from a given face object. It is discarded */
- /* automatically by its parent face. */
- /* */
- typedef struct FT_GlyphSlotRec_* FT_GlyphSlot;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_CharMap */
- /* */
- /* <Description> */
- /* A handle to a given character map. A charmap is used to translate */
- /* character codes in a given encoding into glyph indexes for its */
- /* parent's face. Some font formats may provide several charmaps per */
- /* font. */
- /* */
- /* A charmap is created from a given face object. It is discarded */
- /* automatically by its parent face. */
- /* */
- typedef struct FT_CharMapRec_* FT_CharMap;
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Encoding */
- /* */
- /* <Description> */
- /* An enumeration used to specify encodings supported by charmaps. */
- /* Used in the FT_Select_CharMap() API function. */
- /* */
- /* <Note> */
- /* Because of 32-bit charcodes defined in Unicode (i.e., surrogates), */
- /* all character codes must be expressed as FT_Longs. */
- /* */
- typedef enum FT_Encoding_
- {
- ft_encoding_none = 0,
- ft_encoding_symbol = FT_MAKE_TAG( 's', 'y', 'm', 'b' ),
- ft_encoding_unicode = FT_MAKE_TAG( 'u', 'n', 'i', 'c' ),
- ft_encoding_latin_2 = FT_MAKE_TAG( 'l', 'a', 't', '2' ),
- ft_encoding_sjis = FT_MAKE_TAG( 's', 'j', 'i', 's' ),
- ft_encoding_gb2312 = FT_MAKE_TAG( 'g', 'b', ' ', ' ' ),
- ft_encoding_big5 = FT_MAKE_TAG( 'b', 'i', 'g', '5' ),
- ft_encoding_wansung = FT_MAKE_TAG( 'w', 'a', 'n', 's' ),
- ft_encoding_johab = FT_MAKE_TAG( 'j', 'o', 'h', 'a' ),
-
- ft_encoding_adobe_standard = FT_MAKE_TAG( 'A', 'D', 'O', 'B' ),
- ft_encoding_adobe_expert = FT_MAKE_TAG( 'A', 'D', 'B', 'E' ),
- ft_encoding_adobe_custom = FT_MAKE_TAG( 'A', 'D', 'B', 'C' ),
-
- ft_encoding_apple_roman = FT_MAKE_TAG( 'a', 'r', 'm', 'n' )
-
- /* other encodings might be defined in the future */
-
- } FT_Encoding;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_CharMapRec */
- /* */
- /* <Description> */
- /* The base charmap class. */
- /* */
- /* <Fields> */
- /* face :: A handle to the parent face object. */
- /* */
- /* flags :: A set of bit flags used to describe the charmap. */
- /* Each bit indicates that a given encoding is */
- /* supported. */
- /* */
- /* platform_id :: An ID number describing the platform for the */
- /* following encoding ID. This comes directly from */
- /* the TrueType specification and should be emulated */
- /* for other formats. */
- /* */
- /* encoding_id :: A platform specific encoding number. This also */
- /* comes from the TrueType specification and should be */
- /* emulated similarly. */
- /* */
- /* <Note> */
- /* We STRONGLY recommmend emulating a Unicode charmap for drivers */
- /* that do not support TrueType or OpenType. */
- /* */
- typedef struct FT_CharMapRec_
- {
- FT_Face face;
- FT_Encoding encoding;
- FT_UShort platform_id;
- FT_UShort encoding_id;
-
- } FT_CharMapRec;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /* */
- /* B A S E O B J E C T C L A S S E S */
- /* */
- /*************************************************************************/
- /*************************************************************************/
-
- /*************************************************************************/
- /* */
- /* FreeType base face class */
- /* */
- /* <Struct> */
- /* FT_FaceRec */
- /* */
- /* <Description> */
- /* FreeType root face class structure. A face object models the */
- /* resolution and point-size independent data found in a font file. */
- /* */
- /* <Fields> */
- /* num_faces :: In the case where the face is located in a */
- /* collection (i.e., a resource which embeds */
- /* several faces), this is the total number of */
- /* faces found in the resource. 1 by default. */
- /* */
- /* face_index :: The index of the face in its resource. */
- /* Usually, this is 0 for all normal font */
- /* formats. It can be more in the case of */
- /* collections (which embed several fonts in a */
- /* single resource/file). */
- /* */
- /* face_flags :: A set of bit flags that give important */
- /* information about the face; see the */
- /* FT_FACE_FLAG_XXX macros for details. */
- /* */
- /* style_flags :: A set of bit flags indicating the style of */
- /* the face (i.e., italic, bold, underline, */
- /* etc). */
- /* */
- /* num_glyphs :: The total number of glyphs in the face. */
- /* */
- /* family_name :: The face's family name. This is an ASCII */
- /* string, usually in English, which describes */
- /* the typeface's family (like `Times New */
- /* Roman', `Bodoni', `Garamond', etc). This */
- /* is a least common denominator used to list */
- /* fonts. Some formats (TrueType & OpenType) */
- /* provide localized and Unicode versions of */
- /* this string. Applications should use the */
- /* format specific interface to access them. */
- /* */
- /* style_name :: The face's style name. This is an ASCII */
- /* string, usually in English, which describes */
- /* the typeface's style (like `Italic', */
- /* `Bold', `Condensed', etc). Not all font */
- /* formats provide a style name, so this field */
- /* is optional, and can be set to NULL. As */
- /* for `family_name', some formats provide */
- /* localized/Unicode versions of this string. */
- /* Applications should use the format specific */
- /* interface to access them. */
- /* */
- /* num_fixed_sizes :: The number of fixed sizes available in this */
- /* face. This should be set to 0 for scalable */
- /* fonts, unless its resource includes a */
- /* complete set of glyphs (called a `strike') */
- /* for the specified size. */
- /* */
- /* available_sizes :: An array of sizes specifying the available */
- /* bitmap/graymap sizes that are contained in */
- /* in the font resource. Should be set to */
- /* NULL if the field `num_fixed_sizes' is set */
- /* to 0. */
- /* */
- /* num_charmaps :: The total number of character maps in the */
- /* face. */
- /* */
- /* charmaps :: A table of pointers to the face's charmaps */
- /* Used to scan the list of available charmaps */
- /* this table might change after a call to */
- /* FT_Attach_File/Stream (e.g. when it used */
- /* to hook and additional encoding/CMap to */
- /* the face object). */
- /* */
- /* generic :: A field reserved for client uses. See the */
- /* FT_Generic type description. */
- /* */
- /* bbox :: The font bounding box. Coordinates are */
- /* expressed in font units (see units_per_EM). */
- /* The box is large enough to contain any */
- /* glyph from the font. Thus, bbox.yMax can */
- /* be seen as the `maximal ascender', */
- /* bbox.yMin as the `minimal descender', and */
- /* the maximal glyph width is given by */
- /* `bbox.xMax-bbox.xMin' (not to be confused */
- /* with the maximal _advance_width_). Only */
- /* relevant for scalable formats. */
- /* */
- /* units_per_EM :: The number of font units per EM square for */
- /* this face. This is typically 2048 for */
- /* TrueType fonts, 1000 for Type1 fonts, and */
- /* should be set to the (unrealistic) value 1 */
- /* for fixed-sizes fonts. Only relevant for */
- /* scalable formats. */
- /* */
- /* ascender :: The face's ascender is the vertical */
- /* distance from the baseline to the topmost */
- /* point of any glyph in the face. This */
- /* field's value is positive, expressed in */
- /* font units. Some font designs use a value */
- /* different from `bbox.yMax'. Only relevant */
- /* for scalable formats. */
- /* */
- /* descender :: The face's descender is the vertical */
- /* distance from the baseline to the */
- /* bottommost point of any glyph in the face. */
- /* This field's value is positive, expressed */
- /* in font units. Some font designs use a */
- /* value different from `-bbox.yMin'. Only */
- /* relevant for scalable formats. */
- /* */
- /* height :: The face's height is the vertical distance */
- /* from one baseline to the next when writing */
- /* several lines of text. Its value is always */
- /* positive, expressed in font units. The */
- /* value can be computed as */
- /* `ascender+descender+line_gap' where the */
- /* value of `line_gap' is also called */
- /* `external leading'. Only relevant for */
- /* scalable formats. */
- /* */
- /* max_advance_width :: The maximal advance width, in font units, */
- /* for all glyphs in this face. This can be */
- /* used to make word wrapping computations */
- /* faster. Only relevant for scalable */
- /* formats. */
- /* */
- /* max_advance_height :: The maximal advance height, in font units, */
- /* for all glyphs in this face. This is only */
- /* relevant for vertical layouts, and should */
- /* be set to the `height' for fonts that do */
- /* not provide vertical metrics. Only */
- /* relevant for scalable formats. */
- /* */
- /* underline_position :: The position, in font units, of the */
- /* underline line for this face. It's the */
- /* center of the underlining stem. Only */
- /* relevant for scalable formats. */
- /* */
- /* underline_thickness :: The thickness, in font units, of the */
- /* underline for this face. Only relevant for */
- /* scalable formats. */
- /* */
- /* driver :: A handle to the face's parent driver */
- /* object. */
- /* */
- /* memory :: A handle to the face's parent memory */
- /* object. Used for the allocation of */
- /* subsequent objects. */
- /* */
- /* stream :: A handle to the face's stream. */
- /* */
- /* glyph :: The face's associated glyph slot(s). This */
- /* object is created automatically with a new */
- /* face object. However, certain kinds of */
- /* applications (mainly tools like converters) */
- /* can need more than one slot to ease their */
- /* task. */
- /* */
- /* sizes_list :: The list of child sizes for this face. */
- /* */
- /* max_points :: The maximal number of points used to store */
- /* the vectorial outline of any glyph in this */
- /* face. If this value cannot be known in */
- /* advance, or if the face isn't scalable, */
- /* this should be set to 0. Only relevant for */
- /* scalable formats. */
- /* */
- /* max_contours :: The maximal number of contours used to */
- /* store the vectorial outline of any glyph in */
- /* this face. If this value cannot be known */
- /* in advance, or if the face isn't scalable, */
- /* this should be set to 0. Only relevant for */
- /* scalable formats. */
- /* */
- /* transform_matrix :: A 2x2 matrix of 16.16 coefficients used */
- /* to transform glyph outlines after they are */
- /* loaded from the font. Only used by the */
- /* convenience functions. */
- /* */
- /* transform_delta :: A translation vector used to transform */
- /* glyph outlines after they are loaded from */
- /* the font. Only used by the convenience */
- /* functions. */
- /* */
- /* transform_flags :: Some flags used to classify the transform. */
- /* Only used by the convenience functions. */
- /* */
- typedef struct FT_FaceRec_
- {
- FT_Long num_faces;
- FT_Long face_index;
-
- FT_Long face_flags;
- FT_Long style_flags;
-
- FT_Long num_glyphs;
-
- FT_String* family_name;
- FT_String* style_name;
-
- FT_Int num_fixed_sizes;
- FT_Bitmap_Size* available_sizes;
-
- /* the face's table of available charmaps */
- FT_Int num_charmaps;
- FT_CharMap* charmaps;
-
- FT_Generic generic;
-
- /* the following are only relevant for scalable outlines */
- FT_BBox bbox;
-
- FT_UShort units_per_EM;
- FT_Short ascender;
- FT_Short descender;
- FT_Short height;
-
- FT_Short max_advance_width;
- FT_Short max_advance_height;
-
- FT_Short underline_position;
- FT_Short underline_thickness;
-
- FT_GlyphSlot glyph;
- FT_Size size;
-
- /************************************************************/
- /* The following fields should be considered private and */
- /* rarely, if ever, used directly by client applications. */
-
- FT_Driver driver;
- FT_Memory memory;
- FT_Stream stream;
-
- FT_CharMap charmap;
- FT_ListRec sizes_list;
-
- FT_Generic autohint;
- void* extensions;
-
- FT_UShort max_points;
- FT_Short max_contours;
-
- FT_Matrix transform_matrix;
- FT_Vector transform_delta;
- FT_Int transform_flags;
-
- } FT_FaceRec;
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_SCALABLE */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face provides */
- /* vectorial outlines (i.e., TrueType or Type1). This doesn't */
- /* prevent embedding of bitmap strikes though, i.e., a given face can */
- /* have both this bit set, and a `num_fixed_sizes' property > 0. */
- /* */
-#define FT_FACE_FLAG_SCALABLE 1
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_FIXED_SIZES */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face contains */
- /* `fixed sizes', i.e., bitmap strikes for some given pixel sizes. */
- /* See the `num_fixed_sizes' and `available_sizes' face properties */
- /* for more information. */
- /* */
-#define FT_FACE_FLAG_FIXED_SIZES 2
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_FIXED_WIDTH */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face contains */
- /* fixed-width characters (like Courier, Lucida, MonoType, etc.). */
- /* */
-#define FT_FACE_FLAG_FIXED_WIDTH 4
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_SFNT */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face uses the */
- /* `sfnt' storage fomat. For now, this means TrueType or OpenType. */
- /* */
-#define FT_FACE_FLAG_SFNT 8
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_HORIZONTAL */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face contains */
- /* horizontal glyph metrics. This should be set for all common */
- /* formats, but who knows. */
- /* */
-#define FT_FACE_FLAG_HORIZONTAL 0x10
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_VERTICAL */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face contains */
- /* vertical glyph metrics. If not set, the glyph loader will */
- /* synthetize vertical metrics itself to help display vertical text */
- /* correctly. */
- /* */
-#define FT_FACE_FLAG_VERTICAL 0x20
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_KERNING */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face contains */
- /* kerning information. When set, this information can be retrieved */
- /* through the function FT_Get_Kerning(). Note that when unset, this */
- /* function will always return the kerning vector (0,0). */
- /* */
-#define FT_FACE_FLAG_KERNING 0x40
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_FAST_GLYPHS */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that the glyphs in a given */
- /* font can be retrieved very quickly, and that a glyph cache is thus */
- /* not necessary for any of its child size objects. */
- /* */
- /* This flag should really be set for fixed-size formats like FNT, */
- /* where each glyph bitmap is available directly in binary form */
- /* without any kind of compression. */
- /* */
-#define FT_FACE_FLAG_FAST_GLYPHS 0x80
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_MULTIPLE_MASTERS */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that the font contains */
- /* multiple masters and is capable of interpolating between them. */
- /* */
-#define FT_FACE_FLAG_MULTIPLE_MASTERS 0x100
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_GLYPH_NAMES */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that the font contains */
- /* glyph names that can be retrieved through FT_Get_Glyph_Name(). */
- /* */
-#define FT_FACE_FLAG_GLYPH_NAMES 0x200
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_FACE_FLAG_EXTERNAL_STREAM */
- /* */
- /* <Description> */
- /* This bit field is used internally by FreeType to indicate that */
- /* a face's stream was provided by the client application and should */
- /* not be destroyed by FT_Done_Face(). */
- /* */
-#define FT_FACE_FLAG_EXTERNAL_STREAM 0x4000
-
-
-#define FT_HAS_HORIZONTAL( face ) \
- ( face->face_flags & FT_FACE_FLAG_HORIZONTAL )
-#define FT_HAS_VERTICAL( face ) \
- ( face->face_flags & FT_FACE_FLAG_VERTICAL )
-#define FT_HAS_KERNING( face ) \
- ( face->face_flags & FT_FACE_FLAG_KERNING )
-#define FT_IS_SCALABLE( face ) \
- ( face->face_flags & FT_FACE_FLAG_SCALABLE )
-#define FT_IS_SFNT( face ) \
- ( face->face_flags & FT_FACE_FLAG_SFNT )
-#define FT_IS_FIXED_WIDTH( face ) \
- ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH )
-#define FT_HAS_FIXED_SIZES( face ) \
- ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES )
-#define FT_HAS_FAST_GLYPHS( face ) \
- ( face->face_flags & FT_FACE_FLAG_FAST_GLYPHS )
-#define FT_HAS_GLYPH_NAMES( face ) \
- ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES )
-
-#define FT_HAS_MULTIPLE_MASTERS( face ) \
- ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS )
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_STYLE_FLAG_ITALIC */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face is */
- /* italicized. */
- /* */
-#define FT_STYLE_FLAG_ITALIC 1
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_STYLE_FLAG_BOLD */
- /* */
- /* <Description> */
- /* A bit-field constant, used to indicate that a given face is */
- /* emboldened. */
- /* */
-#define FT_STYLE_FLAG_BOLD 2
-
-
- /*************************************************************************/
- /* */
- /* FreeType base size metrics */
- /* */
- /* <Struct> */
- /* FT_Size_Metrics */
- /* */
- /* <Description> */
- /* The size metrics structure returned scaled important distances for */
- /* a given size object. */
- /* */
- /* <Fields> */
- /* x_ppem :: The character width, expressed in integer pixels. */
- /* This is the width of the EM square expressed in */
- /* pixels, hence the term `ppem' (pixels per EM). */
- /* */
- /* y_ppem :: The character height, expressed in integer pixels. */
- /* This is the height of the EM square expressed in */
- /* pixels, hence the term `ppem' (pixels per EM). */
- /* */
- /* x_scale :: A simple 16.16 fixed point format coefficient used */
- /* to scale horizontal distances expressed in font */
- /* units to fractional (26.6) pixel coordinates. */
- /* */
- /* y_scale :: A simple 16.16 fixed point format coefficient used */
- /* to scale vertical distances expressed in font */
- /* units to fractional (26.6) pixel coordinates. */
- /* */
- /* x_resolution :: The horizontal device resolution for this size */
- /* object, expressed in integer dots per inches */
- /* (dpi). As a convention, fixed font formats set */
- /* this value to 72. */
- /* */
- /* y_resolution :: The vertical device resolution for this size */
- /* object, expressed in integer dots per inches */
- /* (dpi). As a convention, fixed font formats set */
- /* this value to 72. */
- /* */
- /* ascender :: The ascender, expressed in 26.6 fixed point */
- /* pixels. Always positive. */
- /* */
- /* descender :: The descender, expressed in 26.6 fixed point */
- /* pixels. Always positive. */
- /* */
- /* height :: The text height, expressed in 26.6 fixed point */
- /* pixels. Always positive. */
- /* */
- /* max_advance :: Maximum horizontal advance, expressed in 26.6 */
- /* fixed point pixels. Always positive. */
- /* */
- /* <Note> */
- /* The values of `ascender', `descender', and `height' are only the */
- /* scaled versions of `face->ascender', `face->descender', and */
- /* `face->height'. */
- /* */
- /* Unfortunately, due to glyph hinting, these values might not be */
- /* exact for certain fonts, they thus must be treated as unreliable */
- /* with an error margin of at least one pixel! */
- /* */
- /* Indeed, the only way to get the exact pixel ascender and descender */
- /* is to render _all_ glyphs. As this would be a definite */
- /* performance hit, it is up to client applications to perform such */
- /* computations. */
- /* */
- typedef struct FT_Size_Metrics_
- {
- FT_UShort x_ppem; /* horizontal pixels per EM */
- FT_UShort y_ppem; /* vertical pixels per EM */
-
- FT_Fixed x_scale; /* two scales used to convert font units */
- FT_Fixed y_scale; /* to 26.6 frac. pixel coordinates.. */
-
- FT_Pos ascender; /* ascender in 26.6 frac. pixels */
- FT_Pos descender; /* descender in 26.6 frac. pixels */
- FT_Pos height; /* text height in 26.6 frac. pixels */
- FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */
-
- } FT_Size_Metrics;
-
-
- /*************************************************************************/
- /* */
- /* FreeType base size class */
- /* */
- /* <Struct> */
- /* FT_SizeRec */
- /* */
- /* <Description> */
- /* FreeType root size class structure. A size object models the */
- /* resolution and pointsize dependent data of a given face. */
- /* */
- /* <Fields> */
- /* face :: Handle to the parent face object. */
- /* */
- /* generic :: A typeless pointer, which is unused by the FreeType */
- /* library or any of its drivers. It can be used by */
- /* client applications to link their own data to each size */
- /* object. */
- /* */
- /* metrics :: Metrics for this size object. This field is read-only. */
- /* */
- typedef struct FT_SizeRec_
- {
- FT_Face face; /* parent face object */
- FT_Generic generic; /* generic pointer for client uses */
- FT_Size_Metrics metrics; /* size metrics */
-
- } FT_SizeRec;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_SubGlyph */
- /* */
- /* <Description> */
- /* The subglyph structure is an internal object used to describe */
- /* subglyphs (for example, in the case of composites). */
- /* */
- /* <Note> */
- /* The subglyph implementation is not part of the high-level API, */
- /* hence the forward structure declaration. */
- /* */
- typedef struct FT_SubGlyph_ FT_SubGlyph;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_GlyphLoader */
- /* */
- /* <Description> */
- /* The glyph loader is an internal object used to load several glyphs */
- /* together (for example, in the case of composites). */
- /* */
- /* <Note> */
- /* The glyph loader implementation is not part of the high-level API, */
- /* hence the forward structure declaration. */
- /* */
- typedef struct FT_GlyphLoader_ FT_GlyphLoader;
-
-
- /*************************************************************************/
- /* */
- /* FreeType Glyph Slot base class */
- /* */
- /* <Struct> */
- /* FT_GlyphSlotRec */
- /* */
- /* <Description> */
- /* FreeType root glyph slot class structure. A glyph slot is a */
- /* container where individual glyphs can be loaded, be they */
- /* vectorial or bitmap/graymaps. */
- /* */
- /* <Fields> */
- /* library :: A handle to the FreeType library instance */
- /* this slot belongs to. */
- /* */
- /* face :: A handle to the parent face object. */
- /* */
- /* next :: In some cases (like some font tools), several */
- /* glyph slots per face object can be a good */
- /* thing. As this is rare, the glyph slots are */
- /* listed through a direct, single-linked list */
- /* using its `next' field. */
- /* */
- /* generic :: A typeless pointer which is unused by the */
- /* FreeType library or any of its drivers. It */
- /* can be used by client applications to link */
- /* their own data to each size object. */
- /* */
- /* metrics :: The metrics of the last loaded glyph in the */
- /* slot. The returned values depend on the last */
- /* load flags (see the FT_Load_Glyph() API */
- /* function) and can be expressed either in 26.6 */
- /* fractional pixels or font units. */
- /* */
- /* Note that even when the glyph image is */
- /* transformed, the metrics are not. */
- /* */
- /* linearHoriAdvance :: For scalable formats only, this field holds */
- /* the linearly scaled horizontal advance width */
- /* for the glyph (i.e. the scaled and unhinted */
- /* value of the hori advance). This can be */
- /* important to perform correct WYSIWYG layout */
- /* */
- /* Note that this value is expressed by default */
- /* in 16.16 pixels. However, when the glyph is */
- /* loaded with the FT_LOAD_UNSCALED_LINEAR flag, */
- /* this field contains simply the value of the */
- /* advance in original font units. */
- /* */
- /* linearVertAdvance :: For scalable formats only, this field holds */
- /* the linearly scaled vertical advance height */
- /* for the glyph. See linearHoriAdvance for */
- /* comments. */
- /* */
- /* advance :: This is the transformed advance width for the */
- /* glyph. */
- /* */
- /* format :: This field indicates the format of the image */
- /* contained in the glyph slot. Typically */
- /* ft_glyph_format_bitmap, */
- /* ft_glyph_format_outline, and */
- /* ft_glyph_format_composite, but others are */
- /* possible. */
- /* */
- /* bitmap :: This field is used as a bitmap descriptor */
- /* when the slot format is */
- /* ft_glyph_format_bitmap. Note that the */
- /* address and content of the bitmap buffer can */
- /* change between calls of FT_Load_Glyph() and a */
- /* few other functions. */
- /* */
- /* bitmap_left :: This is the bitmap's left bearing expressed */
- /* in integer pixels. Of course, this is only */
- /* valid if the format is */
- /* ft_glyph_format_bitmap. */
- /* */
- /* bitmap_top :: This is the bitmap's top bearing expressed in */
- /* integer pixels. Remember that this is the */
- /* distance from the baseline to the top-most */
- /* glyph scanline, upwards y-coordinates being */
- /* *positive*. */
- /* */
- /* outline :: The outline descriptor for the current glyph */
- /* image if its format is */
- /* ft_glyph_bitmap_outline. */
- /* */
- /* num_subglyphs :: The number of subglyphs in a composite glyph. */
- /* This format is only valid for the composite */
- /* glyph format, that should normally only be */
- /* loaded with the FT_LOAD_NO_RECURSE flag. */
- /* */
- /* subglyphs :: An array of subglyph descriptors for */
- /* composite glyphs. There are `num_subglyphs' */
- /* elements in there. */
- /* */
- /* control_data :: Certain font drivers can also return the */
- /* control data for a given glyph image (e.g. */
- /* TrueType bytecode, Type 1 charstrings, etc.). */
- /* This field is a pointer to such data. */
- /* */
- /* control_len :: This is the length in bytes of the control */
- /* data. */
- /* */
- /* other :: Really wicked formats can use this pointer to */
- /* present their own glyph image to client apps. */
- /* Note that the app will need to know about the */
- /* image format. */
- /* */
- /* loader :: This is a private object for the glyph slot. */
- /* Do not touch this. */
- /* */
- /* <Note> */
- /* If FT_Load_Glyph() is called with default flags (FT_LOAD_DEFAULT), */
- /* the glyph image is loaded in the glyph slot in its native format */
- /* (e.g. a vectorial outline for TrueType and Type 1 formats). */
- /* */
- /* This image can later be converted into a bitmap by calling */
- /* FT_Render_Glyph(). This function finds the current renderer for */
- /* the native image's format then invokes it. */
- /* */
- /* The renderer is in charge of transforming the native image through */
- /* the slot's face transformation fields, then convert it into a */
- /* bitmap that is returned in `slot->bitmap'. */
- /* */
- /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */
- /* to specify the position of the bitmap relative to the current pen */
- /* position (e.g. coordinates [0,0] on the baseline). Of course, */
- /* `slot->format' is also changed to `ft_glyph_format_bitmap' . */
- /* */
- typedef struct FT_GlyphSlotRec_
- {
- FT_Library library;
- FT_Face face;
- FT_GlyphSlot next;
- FT_UInt flags;
- FT_Generic generic;
-
- FT_Glyph_Metrics metrics;
- FT_Fixed linearHoriAdvance;
- FT_Fixed linearVertAdvance;
- FT_Vector advance;
-
- FT_Glyph_Format format;
-
- FT_Bitmap bitmap;
- FT_Int bitmap_left;
- FT_Int bitmap_top;
-
- FT_Outline outline;
-
- FT_UInt num_subglyphs;
- FT_SubGlyph* subglyphs;
-
- void* control_data;
- long control_len;
-
- void* other;
-
- /* private fields */
- FT_GlyphLoader* loader;
-
- } FT_GlyphSlotRec;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /* */
- /* F U N C T I O N S */
- /* */
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Init_FreeType */
- /* */
- /* <Description> */
- /* Initializes a new FreeType library object. The set of drivers */
- /* that are registered by this function is determined at build time. */
- /* */
- /* <Output> */
- /* library :: A handle to a new library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Init_FreeType( FT_Library* library );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_FreeType */
- /* */
- /* <Description> */
- /* Destroys a given FreeType library object and all of its childs, */
- /* including resources, drivers, faces, sizes, etc. */
- /* */
- /* <Input> */
- /* library :: A handle to the target library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Done_FreeType( FT_Library library );
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Open_Flags */
- /* */
- /* <Description> */
- /* An enumeration used to list the bit flags used within */
- /* FT_Open_Args(). */
- /* */
- /* <Fields> */
- /* ft_open_memory :: This is a memory-based stream. */
- /* */
- /* ft_open_stream :: Copy the stream from the `stream' field. */
- /* */
- /* ft_open_pathname :: Create a new input stream from a C pathname. */
- /* */
- /* ft_open_driver :: Use the `driver' field. */
- /* */
- /* ft_open_params :: Use the `num_params' & `params' field. */
- /* */
- typedef enum
- {
- ft_open_memory = 1,
- ft_open_stream = 2,
- ft_open_pathname = 4,
- ft_open_driver = 8,
- ft_open_params = 16
-
- } FT_Open_Flags;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Parameter */
- /* */
- /* <Description> */
- /* A simple structure used to pass more or less generic parameters */
- /* to FT_Open_Face(). */
- /* */
- /* <Fields> */
- /* tag :: A 4-byte identification tag. */
- /* */
- /* data :: A pointer to the parameter data. */
- /* */
- /* <Note> */
- /* The id and function of parameters are driver-specific. */
- /* */
- typedef struct FT_Parameter_
- {
- FT_ULong tag;
- FT_Pointer data;
-
- } FT_Parameter;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Open_Args */
- /* */
- /* <Description> */
- /* A structure used to indicate how to open a new font file/stream. */
- /* A pointer to such a structure can be used as a parameter for the */
- /* functions FT_Open_Face() & FT_Attach_Stream(). */
- /* */
- /* <Fields> */
- /* flags :: A set of bit flags indicating how to use the */
- /* structure. */
- /* */
- /* memory_base :: The first byte of the file in memory. */
- /* */
- /* memory_size :: The size in bytes of the file in memory. */
- /* */
- /* pathname :: A pointer to an 8-bit file pathname. */
- /* */
- /* stream :: A handle to a source stream object. */
- /* */
- /* driver :: This field is exclusively used by FT_Open_Face(); */
- /* it simply specifies the font driver to use to open */
- /* the face. If set to 0, FreeType will try to load */
- /* the face with each one of the drivers in its list. */
- /* */
- /* num_params :: The number of extra parameters. */
- /* */
- /* params :: Extra parameters passed to the font driver when */
- /* opening a new face. */
- /* */
- /* <Note> */
- /* `stream_type' determines which fields are used to create a new */
- /* input stream. */
- /* */
- /* If it is `ft_stream_memory', a new memory-based stream will be */
- /* created using the memory block specified by `memory_base' and */
- /* `memory_size'. */
- /* */
- /* If it is `ft_stream_pathname', a new stream will be created with */
- /* the `pathname' field, calling the system-specific FT_New_Stream() */
- /* function. */
- /* */
- /* If is is `ft_stream_copy', then the content of `stream' will be */
- /* copied to a new input stream object. The object will be closed */
- /* and destroyed when the face is destroyed itself. Note that this */
- /* means that you should not close the stream before the library */
- /* does! */
- /* */
- typedef struct FT_Open_Args_
- {
- FT_Open_Flags flags;
- FT_Byte* memory_base;
- FT_Long memory_size;
- FT_String* pathname;
- FT_Stream stream;
- FT_Module driver;
- FT_Int num_params;
- FT_Parameter* params;
-
- } FT_Open_Args;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Face */
- /* */
- /* <Description> */
- /* Creates a new face object from a given resource and typeface index */
- /* using a pathname to the font file. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* pathname :: A path to the font file. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* aface :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_New_Face() can be used to determine and/or check the font */
- /* format of a given font resource. If the `face_index' field is */
- /* negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_New_Face( FT_Library library,
- const char* filepathname,
- FT_Long face_index,
- FT_Face* face );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Memory_Face */
- /* */
- /* <Description> */
- /* Creates a new face object from a given resource and typeface index */
- /* using a font file already loaded into memory. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* file_base :: A pointer to the beginning of the font data. */
- /* */
- /* file_size :: The size of the memory chunk used by the font data. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* face :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_New_Memory_Face() can be used to determine and/or check the */
- /* font format of a given font resource. If the `face_index' field */
- /* is negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_New_Memory_Face( FT_Library library,
- FT_Byte* file_base,
- FT_Long file_size,
- FT_Long face_index,
- FT_Face* face );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Open_Face */
- /* */
- /* <Description> */
- /* Opens a face object from a given resource and typeface index using */
- /* an `FT_Open_Args' structure. If the face object doesn't exist, it */
- /* will be created. */
- /* */
- /* <InOut> */
- /* library :: A handle to the library resource. */
- /* */
- /* <Input> */
- /* args :: A pointer to an `FT_Open_Args' structure which must */
- /* be filled by the caller. */
- /* */
- /* face_index :: The index of the face within the resource. The */
- /* first face has index 0. */
- /* <Output> */
- /* aface :: A handle to a new face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Unlike FreeType 1.x, this function automatically creates a glyph */
- /* slot for the face object which can be accessed directly through */
- /* `face->glyph'. */
- /* */
- /* Note that additional slots can be added to each face with the */
- /* FT_New_GlyphSlot() API function. Slots are linked in a single */
- /* list through their `next' field. */
- /* */
- /* FT_Open_Face() can be used to determine and/or check the font */
- /* format of a given font resource. If the `face_index' field is */
- /* negative, the function will _not_ return any face handle in */
- /* `*face'. Its return value should be 0 if the resource is */
- /* recognized, or non-zero if not. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Open_Face( FT_Library library,
- FT_Open_Args* args,
- FT_Long face_index,
- FT_Face* face );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Attach_File */
- /* */
- /* <Description> */
- /* `Attaches' a given font file to an existing face. This is usually */
- /* to read additional information for a single face object. For */
- /* example, it is used to read the AFM files that come with Type 1 */
- /* fonts in order to add kerning data and other metrics. */
- /* */
- /* <InOut> */
- /* face :: The target face object. */
- /* */
- /* <Input> */
- /* filepathname :: An 8-bit pathname naming the `metrics' file. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If your font file is in memory, or if you want to provide your */
- /* own input stream object, use FT_Attach_Stream(). */
- /* */
- /* The meaning of the `attach' action (i.e., what really happens when */
- /* the new file is read) is not fixed by FreeType itself. It really */
- /* depends on the font format (and thus the font driver). */
- /* */
- /* Client applications are expected to know what they are doing */
- /* when invoking this function. Most drivers simply do not implement */
- /* file attachments. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Attach_File( FT_Face face,
- const char* filepathname );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Attach_Stream */
- /* */
- /* <Description> */
- /* This function is similar to FT_Attach_File() with the exception */
- /* that it reads the attachment from an arbitrary stream. */
- /* */
- /* <Input> */
- /* face :: The target face object. */
- /* */
- /* parameters :: A pointer to an FT_Open_Args structure used to */
- /* describe the input stream to FreeType. */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The meaning of the `attach' (i.e. what really happens when the */
- /* new file is read) is not fixed by FreeType itself. It really */
- /* depends on the font format (and thus the font driver). */
- /* */
- /* Client applications are expected to know what they are doing */
- /* when invoking this function. Most drivers simply do not implement */
- /* file attachments. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Attach_Stream( FT_Face face,
- FT_Open_Args* parameters );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Face */
- /* */
- /* <Description> */
- /* Discards a given face object, as well as all of its child slots */
- /* and sizes. */
- /* */
- /* <Input> */
- /* face :: A handle to a target face object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Done_Face( FT_Face face );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Char_Size */
- /* */
- /* <Description> */
- /* Sets the character dimensions of a given face object. The */
- /* `char_width' and `char_height' values are used for the width and */
- /* height, respectively, expressed in 26.6 fractional points. */
- /* */
- /* If the horizontal or vertical resolution values are zero, a */
- /* default value of 72dpi is used. Similarly, if one of the */
- /* character dimensions is zero, its value is set equal to the other. */
- /* */
- /* <InOut> */
- /* size :: A handle to a target size object. */
- /* */
- /* <Input> */
- /* char_width :: The character width, in 26.6 fractional points. */
- /* */
- /* char_height :: The character height, in 26.6 fractional */
- /* points. */
- /* */
- /* horz_resolution :: The horizontal resolution. */
- /* */
- /* vert_resolution :: The vertical resolution. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* When dealing with fixed-size faces (i.e., non-scalable formats), */
- /* use the function FT_Set_Pixel_Sizes(). */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_Char_Size( FT_Face face,
- FT_F26Dot6 char_width,
- FT_F26Dot6 char_height,
- FT_UInt horz_resolution,
- FT_UInt vert_resolution );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Pixel_Sizes */
- /* */
- /* <Description> */
- /* Sets the character dimensions of a given face object. The width */
- /* and height are expressed in integer pixels. */
- /* */
- /* If one of the character dimensions is zero, its value is set equal */
- /* to the other. */
- /* */
- /* <InOut> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Input> */
- /* pixel_width :: The character width, in integer pixels. */
- /* */
- /* pixel_height :: The character height, in integer pixels. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_Pixel_Sizes( FT_Face face,
- FT_UInt pixel_width,
- FT_UInt pixel_height );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Load_Glyph */
- /* */
- /* <Description> */
- /* A function used to load a single glyph within a given glyph slot, */
- /* for a given size. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object where the glyph */
- /* will be loaded. */
- /* */
- /* glyph_index :: The index of the glyph in the font file. */
- /* */
- /* load_flags :: A flag indicating what to load for this glyph. The */
- /* FT_LOAD_XXX constants can be used to control the */
- /* glyph loading process (e.g., whether the outline */
- /* should be scaled, whether to load bitmaps or not, */
- /* whether to hint the outline, etc). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If the glyph image is not a bitmap, and if the bit flag */
- /* FT_LOAD_IGNORE_TRANSFORM is unset, the glyph image will be */
- /* transformed with the information passed to a previous call to */
- /* FT_Set_Transform. */
- /* */
- /* Note that this also transforms the `face.glyph.advance' field, but */
- /* *not* the values in `face.glyph.metrics'. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Load_Glyph( FT_Face face,
- FT_UInt glyph_index,
- FT_Int load_flags );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Load_Char */
- /* */
- /* <Description> */
- /* A function used to load a single glyph within a given glyph slot, */
- /* for a given size, according to its character code. */
- /* */
- /* <Input> */
- /* face :: A handle to a target face object where the glyph */
- /* will be loaded. */
- /* */
- /* char_code :: The glyph's character code, according to the */
- /* current charmap used in the face. */
- /* */
- /* load_flags :: A flag indicating what to load for this glyph. The */
- /* FT_LOAD_XXX constants can be used to control the */
- /* glyph loading process (e.g., whether the outline */
- /* should be scaled, whether to load bitmaps or not, */
- /* whether to hint the outline, etc). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* If the face has no current charmap, or if the character code */
- /* is not defined in the charmap, this function will return an */
- /* error. */
- /* */
- /* If the glyph image is not a bitmap, and if the bit flag */
- /* FT_LOAD_IGNORE_TRANSFORM is unset, the glyph image will be */
- /* transformed with the information passed to a previous call to */
- /* FT_Set_Transform(). */
- /* */
- /* Note that this also transforms the `face.glyph.advance' field, but */
- /* *not* the values in `face.glyph.metrics'. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Load_Char( FT_Face face,
- FT_ULong char_code,
- FT_Int load_flags );
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_NO_SCALE */
- /* */
- /* <Description> */
- /* A bit field constant, used with FT_Load_Glyph() to indicate that */
- /* the vector outline being loaded should not be scaled to 26.6 */
- /* fractional pixels, but kept in notional units. */
- /* */
-#define FT_LOAD_NO_SCALE 1
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_NO_HINTING */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the vector outline being loaded should not be fitted to the pixel */
- /* grid but simply scaled to 26.6 fractional pixels. */
- /* */
- /* This flag is ignored if FT_LOAD_NO_SCALE is set. */
- /* */
-#define FT_LOAD_NO_HINTING 2
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_RENDER */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the function should load the glyph and immediately convert it into */
- /* a bitmap, if necessary, by calling FT_Render_Glyph(). */
- /* */
- /* Note that by default, FT_Load_Glyph() loads the glyph image in its */
- /* native format. */
- /* */
-#define FT_LOAD_RENDER 4
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_NO_BITMAP */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the function should not load the bitmap or pixmap of a given */
- /* glyph. This is useful when you do not want to load the embedded */
- /* bitmaps of scalable formats, as the native glyph image will be */
- /* loaded, and can then be rendered through FT_Render_Glyph(). */
- /* */
-#define FT_LOAD_NO_BITMAP 8
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_VERTICAL_LAYOUT */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the glyph image should be prepared for vertical layout. This */
- /* basically means that `face.glyph.advance' will correspond to the */
- /* vertical advance height (instead of the default horizontal */
- /* advance width), and that the glyph image will translated to match */
- /* the vertical bearings positions. */
- /* */
-#define FT_LOAD_VERTICAL_LAYOUT 16
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_FORCE_AUTOHINT */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the function should try to auto-hint the glyphs, even if a driver */
- /* specific hinter is available. */
- /* */
-#define FT_LOAD_FORCE_AUTOHINT 32
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_CROP_BITMAP */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the font driver should try to crop the bitmap (i.e. remove all */
- /* space around its black bits) when loading it. For now, this */
- /* really only works with embedded bitmaps in TrueType fonts. */
- /* */
-#define FT_LOAD_CROP_BITMAP 64
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_PEDANTIC */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the glyph loader should perform a pedantic bytecode */
- /* interpretation. Many popular fonts come with broken glyph */
- /* programs. When this flag is set, loading them will return an */
- /* error. Otherwise, errors are ignored by the loader, sometimes */
- /* resulting in ugly glyphs. */
- /* */
-#define FT_LOAD_PEDANTIC 128
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the glyph loader should ignore the global advance width defined */
- /* in the font. As far as we know, this is only used by the */
- /* X-TrueType font server, in order to deal correctly with the */
- /* incorrect metrics contained in DynaLab's TrueType CJK fonts. */
- /* */
-#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH 512
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_NO_RECURSE */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the glyph loader should not load composite glyph recursively. */
- /* Rather, when a composite glyph is encountered, it should set */
- /* the values of `num_subglyphs' and `subglyphs', as well as set */
- /* `face->glyph.format' to ft_glyph_format_composite. */
- /* */
- /* This is for use by the auto-hinter and possibly other tools. */
- /* For nearly all applications, this flags should be left unset */
- /* when invoking FT_Load_Glyph(). */
- /* */
- /* Note that the flag forces the load of unscaled glyphs. */
- /* */
-#define FT_LOAD_NO_RECURSE 1024
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_IGNORE_TRANSFORM */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the glyph loader should not try to transform the loaded glyph */
- /* image. */
- /* */
-#define FT_LOAD_IGNORE_TRANSFORM 2048
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_MONOCHROME */
- /* */
- /* <Description> */
- /* Only used with FT_LOAD_RENDER set, it indicates that the returned */
- /* glyph image should be 1-bit monochrome. This really tells the */
- /* glyph loader to use `ft_render_mode_mono' when calling */
- /* FT_Render_Glyph(). */
- /* */
-#define FT_LOAD_MONOCHROME 4096
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_LINEAR_DESIGN */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the function should return the linearly scaled metrics expressed */
- /* in original font units, instead of the default 16.16 pixel values. */
- /* */
-#define FT_LOAD_LINEAR_DESIGN 8192
-
-
- /*************************************************************************/
- /* */
- /* <Constant> */
- /* FT_LOAD_DEFAULT */
- /* */
- /* <Description> */
- /* A bit-field constant, used with FT_Load_Glyph() to indicate that */
- /* the function should try to load the glyph normally, i.e., */
- /* embedded bitmaps are favored over outlines, vectors are always */
- /* scaled and grid-fitted. */
- /* */
-#define FT_LOAD_DEFAULT 0
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Transform */
- /* */
- /* <Description> */
- /* A function used to set the transformation that is applied to glyph */
- /* images just before they are converted to bitmaps in a glyph slot */
- /* when FT_Render_Glyph() is called. */
- /* */
- /* <InOut> */
- /* face :: A handle to the source face object. */
- /* */
- /* <Input> */
- /* matrix :: A pointer to the transformation's 2x2 matrix. Use 0 for */
- /* the identity matrix. */
- /* delta :: A pointer to the translation vector. Use 0 for the null */
- /* vector. */
- /* */
- /* <Note> */
- /* The transformation is only applied to scalable image formats after */
- /* the glyph has been loaded. It means that hinting is unaltered by */
- /* the transformation and is performed on the character size given in */
- /* the last call to FT_Set_Char_Sizes() or FT_Set_Pixel_Sizes(). */
- /* */
- FT_EXPORT_DEF( void ) FT_Set_Transform( FT_Face face,
- FT_Matrix* matrix,
- FT_Vector* delta );
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Render_Mode */
- /* */
- /* <Description> */
- /* An enumeration type that lists the render modes supported by the */
- /* FreeType 2 renderer(s). A renderer is in charge of converting a */
- /* glyph image into a bitmap. */
- /* */
- /* <Fields> */
- /* ft_render_mode_normal :: This is the default render mode; it */
- /* corresponds to 8-bit anti-aliased */
- /* bitmaps, using 256 levels of gray. */
- /* */
- /* ft_render_mode_mono :: This render mode is used to produce 1-bit */
- /* monochrome bitmaps. */
- /* */
- /* <Note> */
- /* There is no render mode to produce 8-bit `monochrome' bitmaps -- */
- /* you have to make the conversion yourself if you need such things */
- /* (besides, FreeType is not a graphics library). */
- /* */
- /* More modes might appear later for specific display modes (e.g. TV, */
- /* LCDs, etc.). They will be supported through the simple addition */
- /* of a renderer module, with no changes to the rest of the engine. */
- /* */
- typedef enum FT_Render_Mode_
- {
- ft_render_mode_normal = 0,
- ft_render_mode_mono = 1
-
- } FT_Render_Mode;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Render_Glyph */
- /* */
- /* <Description> */
- /* Converts a given glyph image to a bitmap. It does so by */
- /* inspecting the glyph image format, find the relevant renderer, and */
- /* invoke it. */
- /* */
- /* <Input> */
- /* slot :: A handle to the glyph slot containing the image to */
- /* convert. */
- /* */
- /* render_mode :: This is the render mode used to render the glyph */
- /* image into a bitmap. See FT_Render_Mode for a list */
- /* of possible values. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Render_Glyph( FT_GlyphSlot slot,
- FT_UInt render_mode );
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Kerning_Mode */
- /* */
- /* <Description> */
- /* An enumeration used to specify which kerning values to return in */
- /* FT_Get_Kerning(). */
- /* */
- /* <Fields> */
- /* ft_kerning_default :: Return scaled and grid-fitted kerning */
- /* distances (value is 0). */
- /* */
- /* ft_kerning_unfitted :: Return scaled but un-grid-fitted kerning */
- /* distances. */
- /* */
- /* ft_kerning_unscaled :: Return the kerning vector in original font */
- /* units. */
- /* */
- typedef enum FT_Kerning_Mode_
- {
- ft_kerning_default = 0,
- ft_kerning_unfitted,
- ft_kerning_unscaled
-
- } FT_Kerning_Mode;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Kerning */
- /* */
- /* <Description> */
- /* Returns the kerning vector between two glyphs of a same face. */
- /* */
- /* <Input> */
- /* face :: A handle to a source face object. */
- /* */
- /* left_glyph :: The index of the left glyph in the kern pair. */
- /* */
- /* right_glyph :: The index of the right glyph in the kern pair. */
- /* */
- /* kern_mode :: See FT_Kerning_Mode() for more information. */
- /* Determines the scale/dimension of the returned */
- /* kerning vector. */
- /* */
- /* <Output> */
- /* kerning :: The kerning vector. This is in font units for */
- /* scalable formats, and in pixels for fixed-sizes */
- /* formats. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* Only horizontal layouts (left-to-right & right-to-left) are */
- /* supported by this method. Other layouts, or more sophisticated */
- /* kernings, are out of the scope of this API function -- they can be */
- /* implemented through format-specific interfaces. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Get_Kerning( FT_Face face,
- FT_UInt left_glyph,
- FT_UInt right_glyph,
- FT_UInt kern_mode,
- FT_Vector* kerning );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Glyph_Name */
- /* */
- /* <Description> */
- /* Retrieves the ASCII name of a given glyph in a face. This only */
- /* works for those faces where FT_HAS_GLYPH_NAME(face) returns true. */
- /* */
- /* <Input> */
- /* face :: A handle to a source face object. */
- /* */
- /* glyph_index :: The glyph index. */
- /* */
- /* buffer :: A pointer to a target buffer where the name will be */
- /* copied to. */
- /* */
- /* buffer_max :: The maximal number of bytes available in the */
- /* buffer. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* An error is returned if the face doesn't provide glyph names or if */
- /* the glyph index is invalid. In all cases of failure, the first */
- /* byte of `buffer' will be set to 0 to indicate an empty name. */
- /* */
- /* The glyph name is truncated to fit within the buffer if it is too */
- /* long. The returned string is always zero-terminated. */
- /* */
- /* This function is not compiled within the library if the config */
- /* macro FT_CONFIG_OPTION_NO_GLYPH_NAMES is defined in */
- /* `include/freetype/config/ftoptions.h' */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Get_Glyph_Name( FT_Face face,
- FT_UInt glyph_index,
- FT_Pointer buffer,
- FT_UInt buffer_max );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Select_Charmap */
- /* */
- /* <Description> */
- /* Selects a given charmap by its encoding tag (as listed in */
- /* `freetype.h'). */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* */
- /* encoding :: A handle to the selected charmap. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function will return an error if no charmap in the face */
- /* corresponds to the encoding queried here. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Select_Charmap( FT_Face face,
- FT_Encoding encoding );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Charmap */
- /* */
- /* <Description> */
- /* Selects a given charmap for character code to glyph index */
- /* decoding. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* charmap :: A handle to the selected charmap. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function will return an error if the charmap is not part of */
- /* the face (i.e., if it is not listed in the face->charmaps[] */
- /* table). */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_Charmap( FT_Face face,
- FT_CharMap charmap );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Char_Index */
- /* */
- /* <Description> */
- /* Returns the glyph index of a given character code. This function */
- /* uses a charmap object to do the translation. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face object. */
- /* */
- /* charcode :: The character code. */
- /* */
- /* <Return> */
- /* The glyph index. 0 means `undefined character code'. */
- /* */
- FT_EXPORT_DEF( FT_UInt ) FT_Get_Char_Index( FT_Face face,
- FT_ULong charcode );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulDiv */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation `(a*b)/c' */
- /* with maximal accuracy (it uses a 64-bit intermediate integer */
- /* whenever necessary). */
- /* */
- /* This function isn't necessarily as fast as some processor specific */
- /* operations, but is at least completely portable. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. */
- /* c :: The divisor. */
- /* */
- /* <Return> */
- /* The result of `(a*b)/c'. This function never traps when trying to */
- /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */
- /* on the signs of `a' and `b'. */
- /* */
- FT_EXPORT_DEF( FT_Long ) FT_MulDiv( FT_Long a,
- FT_Long b,
- FT_Long c );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_MulFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*b)/0x10000' with maximal accuracy. Most of the time this is */
- /* used to multiply a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*b)/0x10000'. */
- /* */
- /* <Note> */
- /* This function has been optimized for the case where the absolute */
- /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */
- /* As this happens mainly when scaling from notional units to */
- /* fractional pixels in FreeType, it resulted in noticeable speed */
- /* improvements between versions 2.x and 1.x. */
- /* */
- /* As a conclusion, always try to place a 16.16 factor as the */
- /* _second_ argument of this function; this can make a great */
- /* difference. */
- /* */
- FT_EXPORT_DEF( FT_Long ) FT_MulFix( FT_Long a,
- FT_Long b );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_DivFix */
- /* */
- /* <Description> */
- /* A very simple function used to perform the computation */
- /* `(a*0x10000)/b' with maximal accuracy. Most of the time, this is */
- /* used to divide a given value by a 16.16 fixed float factor. */
- /* */
- /* <Input> */
- /* a :: The first multiplier. */
- /* b :: The second multiplier. Use a 16.16 factor here whenever */
- /* possible (see note below). */
- /* */
- /* <Return> */
- /* The result of `(a*0x10000)/b'. */
- /* */
- /* <Note> */
- /* The optimization for FT_DivFix() is simple: If (a << 16) fits in */
- /* 32 bits, then the division is computed directly. Otherwise, we */
- /* use a specialized version of the old FT_MulDiv64(). */
- /* */
- FT_EXPORT_DEF( FT_Long ) FT_DivFix( FT_Long a,
- FT_Long b );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Vector_Transform */
- /* */
- /* <Description> */
- /* Transforms a single vector through a 2x2 matrix. */
- /* */
- /* <InOut> */
- /* vector :: The target vector to transform. */
- /* */
- /* <Input> */
- /* matrix :: A pointer to the source 2x2 matrix. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* The result is undefined if either `vector' or `matrix' is invalid. */
- /* */
- FT_EXPORT_DEF( void ) FT_Vector_Transform( FT_Vector* vec,
- FT_Matrix* matrix );
-
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FREETYPE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftbbox.h */
-/* */
-/* FreeType bbox computation (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This component has a _single_ role: to compute exact outline bounding */
- /* boxes. */
- /* */
- /* It is separated from the rest of the engine for various technical */
- /* reasons. It may well be integrated in `ftoutln' later. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTBBOX_H
-#define FTBBOX_H
-
-#include <freetype/freetype.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Raster_GetBBox */
- /* */
- /* <Description> */
- /* Computes the exact bounding box of an outline. This is slower */
- /* than computing the control box. However, it uses an advanced */
- /* algorithm which returns _very_ quickly when the two boxes */
- /* coincide. Otherwise, the outline Bezier arcs are walked over to */
- /* extract their extrema. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the source outline. */
- /* */
- /* <Output> */
- /* bbox :: The outline's exact bounding box. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- FT_EXPORT_DEF(FT_Error) FT_Raster_GetBBox( FT_Outline* outline,
- FT_BBox* abbox );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* FTBBOX_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* fterrors.h */
-/* */
-/* FreeType error codes (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This file is used to define the FreeType error enumeration constants */
- /* It can also be used to create an error message table easily with */
- /* something like: */
- /* */
- /* { */
- /* #undef FTERRORS_H */
- /* #define FT_ERRORDEF( e, v, s ) { e, s }, */
- /* #define FT_ERROR_START_LIST { */
- /* #define FT_ERROR_END_LIST { 0, 0 } }; */
- /* */
- /* const struct */
- /* { */
- /* int err_code; */
- /* const char* err_msg */
- /* } ft_errors[] = */
- /* */
- /* #include <freetype/fterrors.h> */
- /* } */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTERRORS_H
-#define FTERRORS_H
-
-
-#ifndef FT_ERRORDEF
-
-#define FT_ERRORDEF( e, v, s ) e = v,
-#define FT_ERROR_START_LIST enum {
-#define FT_ERROR_END_LIST FT_Err_Max };
-
-#endif /* !FT_ERRORDEF */
-
-
-#ifdef FT_ERROR_START_LIST
- FT_ERROR_START_LIST
-#endif
-
- FT_ERRORDEF( FT_Err_Ok, 0x0000, \
- "no error" )
- FT_ERRORDEF( FT_Err_Cannot_Open_Resource, 0x0001, \
- "can't open stream" )
- FT_ERRORDEF( FT_Err_Unknown_File_Format, 0x0002, \
- "unknown file format" )
- FT_ERRORDEF( FT_Err_Invalid_File_Format, 0x0003, \
- "broken file" )
-
- FT_ERRORDEF( FT_Err_Invalid_Argument, 0x0010, \
- "invalid argument" )
- FT_ERRORDEF( FT_Err_Invalid_Handle, 0x0011, \
- "invalid object handle" )
- FT_ERRORDEF( FT_Err_Invalid_Glyph_Index, 0x0012, \
- "invalid glyph index" )
- FT_ERRORDEF( FT_Err_Invalid_Character_Code, 0x0013, \
- "invalid character code" )
-
- FT_ERRORDEF( FT_Err_Unimplemented_Feature, 0x0020, \
- "unimplemented feature" )
- FT_ERRORDEF( FT_Err_Invalid_Glyph_Format, 0x0021, \
- "unsupported glyph image format" )
- FT_ERRORDEF( FT_Err_Cannot_Render_Glyph, 0x0022, \
- "cannot render this glyph format" )
-
- FT_ERRORDEF( FT_Err_Invalid_Library_Handle, 0x0030, \
- "invalid library handle" )
- FT_ERRORDEF( FT_Err_Invalid_Driver_Handle, 0x0031, \
- "invalid module handle" )
- FT_ERRORDEF( FT_Err_Invalid_Face_Handle, 0x0032, \
- "invalid face handle" )
- FT_ERRORDEF( FT_Err_Invalid_Size_Handle, 0x0033, \
- "invalid size handle" )
- FT_ERRORDEF( FT_Err_Invalid_Slot_Handle, 0x0034, \
- "invalid glyph slot handle" )
- FT_ERRORDEF( FT_Err_Invalid_CharMap_Handle, 0x0035, \
- "invalid charmap handle" )
- FT_ERRORDEF( FT_Err_Invalid_Outline, 0x0036, \
- "invalid outline" )
- FT_ERRORDEF( FT_Err_Invalid_Version, 0x0037, \
- "invalid FreeType version" )
- FT_ERRORDEF( FT_Err_Lower_Module_Version, 0x0038, \
- "module version is too low" )
-
- FT_ERRORDEF( FT_Err_Too_Many_Drivers, 0x0040, \
- "too many modules" )
- FT_ERRORDEF( FT_Err_Too_Many_Extensions, 0x0041, \
- "too many extensions" )
-
- FT_ERRORDEF( FT_Err_Out_Of_Memory, 0x0050, \
- "out of memory" )
- FT_ERRORDEF( FT_Err_Unlisted_Object, 0x0051, \
- "unlisted object" )
-
- FT_ERRORDEF( FT_Err_Invalid_Stream_Handle, 0x0060, \
- "invalid stream handle" )
- FT_ERRORDEF( FT_Err_Cannot_Open_Stream, 0x0061, \
- "cannot open stream" )
- FT_ERRORDEF( FT_Err_Invalid_Stream_Seek, 0x0062, \
- "invalid stream seek" )
- FT_ERRORDEF( FT_Err_Invalid_Stream_Skip, 0x0063, \
- "invalid stream skip" )
- FT_ERRORDEF( FT_Err_Invalid_Stream_Read, 0x0064, \
- "invalid stream read" )
- FT_ERRORDEF( FT_Err_Invalid_Stream_Operation, 0x0065, \
- "invalid stream operation" )
- FT_ERRORDEF( FT_Err_Invalid_Frame_Operation, 0x0066, \
- "invalid frame operation" )
- FT_ERRORDEF( FT_Err_Nested_Frame_Access, 0x0067, \
- "nested frame access" )
- FT_ERRORDEF( FT_Err_Invalid_Frame_Read, 0x0068, \
- "invalid frame read" )
-
- FT_ERRORDEF( FT_Err_Invalid_Composite, 0x0070, \
- "invalid composite glyph" )
- FT_ERRORDEF( FT_Err_Too_Many_Hints, 0x0071, \
- "too many hints" )
-
- FT_ERRORDEF( FT_Err_Raster_Uninitialized, 0x0080, \
- "raster uninitialized" )
- FT_ERRORDEF( FT_Err_Raster_Corrupted, 0x0081, \
- "raster corrupted" )
- FT_ERRORDEF( FT_Err_Raster_Overflow, 0x0082, \
- "raster overflow" )
- FT_ERRORDEF( FT_Err_Raster_Negative_Height, 0x0083, \
- "negative height while rastering" )
-
- /* range 0x400 - 0x4FF is reserved for TrueType specific stuff */
-
- /* range 0x500 - 0x5FF is reserved for CFF specific stuff */
-
- /* range 0x600 - 0x6FF is reserved for Type1 specific stuff */
-
-#ifdef FT_ERROR_END_LIST
- FT_ERROR_END_LIST
-#endif
-
-
-#undef FT_ERROR_START_LIST
-#undef FT_ERROR_END_LIST
-#undef FT_ERRORDEF
-
-
-#endif /* FTERRORS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftglyph.h */
-/* */
-/* FreeType convenience functions to handle glyphs (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This file contains the definition of several convenience functions */
- /* that can be used by client applications to easily retrieve glyph */
- /* bitmaps and outlines from a given face. */
- /* */
- /* These functions should be optional if you are writing a font server */
- /* or text layout engine on top of FreeType. However, they are pretty */
- /* handy for many other simple uses of the library. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTGLYPH_H
-#define FTGLYPH_H
-
-#include <freetype/freetype.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
- /* forward declaration to a private type */
- typedef struct FT_Glyph_Class_ FT_Glyph_Class;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_GlyphRec */
- /* */
- /* <Description> */
- /* The root glyph structure contains a given glyph image plus its */
- /* advance width in 16.16 fixed float format. */
- /* */
- /* <Fields> */
- /* library :: A handle to the FreeType library object. */
- /* */
- /* clazz :: A pointer to the glyph's class. Private. */
- /* */
- /* format :: The format of the glyph's image. */
- /* */
- /* advance :: A 16.16 vector that gives the glyph's advance width. */
- /* */
- typedef struct FT_GlyphRec_
- {
- FT_Library library;
- const FT_Glyph_Class* clazz;
- FT_Glyph_Format format;
- FT_Vector advance;
-
- } FT_GlyphRec, *FT_Glyph;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_BitmapGlyphRec */
- /* */
- /* <Description> */
- /* A structure used for bitmap glyph images. This really is a */
- /* `sub-class' of `FT_GlyphRec'. */
- /* */
- /* <Fields> */
- /* root :: The root FT_Glyph fields. */
- /* */
- /* left :: The left-side bearing, i.e., the horizontal distance */
- /* from the current pen position to the left border of the */
- /* glyph bitmap. */
- /* */
- /* top :: The top-side bearing, i.e., the vertical distance from */
- /* the current pen position to the top border of the glyph */
- /* bitmap. This distance is positive for upwards-y! */
- /* */
- /* bitmap :: A descriptor for the bitmap. */
- /* */
- /* <Note> */
- /* You can typecast FT_Glyph to FT_BitmapGlyph if you have */
- /* glyph->format == ft_glyph_format_bitmap. This lets you access */
- /* the bitmap's contents easily. */
- /* */
- /* The corresponding pixel buffer is always owned by the BitmapGlyph */
- /* and is thus created and destroyed with it. */
- /* */
- typedef struct FT_BitmapGlyphRec_
- {
- FT_GlyphRec root;
- FT_Int left;
- FT_Int top;
- FT_Bitmap bitmap;
-
- } FT_BitmapGlyphRec, *FT_BitmapGlyph;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_OutlineGlyphRec */
- /* */
- /* <Description> */
- /* A structure used for outline (vectorial) glyph images. This */
- /* really is a `sub-class' of `FT_GlyphRec'. */
- /* */
- /* <Fields> */
- /* root :: The root FT_Glyph fields. */
- /* */
- /* outline :: A descriptor for the outline. */
- /* */
- /* <Note> */
- /* You can typecast FT_Glyph to FT_OutlineGlyph if you have */
- /* glyph->format == ft_glyph_format_outline. This lets you access */
- /* the outline's content easily. */
- /* */
- /* As the outline is extracted from a glyph slot, its coordinates are */
- /* expressed normally in 26.6 pixels, unless the flag */
- /* FT_LOAD_NO_SCALE was used in FT_Load_Glyph() or FT_Load_Char(). */
- /* */
- /* The outline's tables are always owned by the object and are */
- /* destroyed with it. */
- /* */
- typedef struct FT_OutlineGlyphRec_
- {
- FT_GlyphRec root;
- FT_Outline outline;
-
- } FT_OutlineGlyphRec, *FT_OutlineGlyph;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Glyph */
- /* */
- /* <Description> */
- /* A function used to extract a glyph image from a slot. */
- /* */
- /* <Input> */
- /* slot :: A handle to the source glyph slot. */
- /* */
- /* <Output> */
- /* aglyph :: A handle to the glyph object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Get_Glyph( FT_GlyphSlot slot,
- FT_Glyph* aglyph );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Copy */
- /* */
- /* <Description> */
- /* A function used to copy a glyph image. */
- /* */
- /* <Input> */
- /* source :: A handle to the source glyph object. */
- /* */
- /* <Output> */
- /* target :: A handle to the target glyph object. 0 in case of */
- /* error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Glyph_Copy( FT_Glyph source,
- FT_Glyph* target );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Transform */
- /* */
- /* <Description> */
- /* Transforms a glyph image if its format is scalable. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the target glyph object. */
- /* */
- /* matrix :: A pointer to a 2x2 matrix to apply. */
- /* */
- /* delta :: A pointer to a 2d vector to apply. Coordinates are */
- /* expressed in 1/64th of a pixel. */
- /* */
- /* <Return> */
- /* FreeType error code (the glyph format is not scalable if it is */
- /* not zero). */
- /* */
- /* <Note> */
- /* The 2x2 transformation matrix is also applied to the glyph's */
- /* advance vector. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Glyph_Transform( FT_Glyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta );
-
-
- enum
- {
- ft_glyph_bbox_pixels = 0,
- ft_glyph_bbox_subpixels = 1,
- ft_glyph_bbox_gridfit = 2
- };
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_Get_CBox */
- /* */
- /* <Description> */
- /* Returns the glyph image's bounding box. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the source glyph object. */
- /* */
- /* mode :: A set of bit flags that indicate how to interpret the */
- /* returned bounding box values. */
- /* */
- /* <Output> */
- /* box :: The glyph bounding box. Coordinates are expressed in */
- /* 1/64th of pixels if it is grid-fitted. */
- /* */
- /* <Note> */
- /* Coordinates are relative to the glyph origin, using the Y-upwards */
- /* convention. */
- /* */
- /* If `ft_glyph_bbox_subpixels' is set in `mode', the bbox */
- /* coordinates are returned in 26.6 pixels (i.e. 1/64th of pixels). */
- /* Otherwise, coordinates are expressed in integer pixels. */
- /* */
- /* Note that the maximum coordinates are exclusive, which means that */
- /* one can compute the width and height of the glyph image (be it in */
- /* integer or 26.6 pixels) as: */
- /* */
- /* width = bbox.xMax - bbox.xMin; */
- /* height = bbox.yMax - bbox.yMin; */
- /* */
- /* Note also that for 26.6 coordinates, if the */
- /* `ft_glyph_bbox_gridfit' flag is set in `mode;, the coordinates */
- /* will also be grid-fitted, which corresponds to: */
- /* */
- /* bbox.xMin = FLOOR(bbox.xMin); */
- /* bbox.yMin = FLOOR(bbox.yMin); */
- /* bbox.xMax = CEILING(bbox.xMax); */
- /* bbox.yMax = CEILING(bbox.yMax); */
- /* */
- /* The default value (0) for `bbox_mode' is `ft_glyph_bbox_pixels'. */
- /* */
- FT_EXPORT_DEF( void ) FT_Glyph_Get_CBox( FT_Glyph glyph,
- FT_UInt bbox_mode,
- FT_BBox* cbox );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Glyph_To_Bitmap */
- /* */
- /* <Description> */
- /* Converts a given glyph object to a bitmap glyph object. */
- /* */
- /* <InOut> */
- /* glyph :: A pointer to a handle to the target glyph. */
- /* */
- /* <Input> */
- /* render_mode :: A set of bit flags that describe how the data is */
- /* */
- /* */
- /* origin :: A pointer to a vector used to translate the glyph */
- /* image before rendering. Can be 0 (if no */
- /* translation). The origin is expressed in */
- /* 26.6 pixels. */
- /* */
- /* destroy :: A boolean that indicates that the original glyph */
- /* image should be destroyed by this function. It is */
- /* never destroyed in case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The glyph image is translated with the `origin' vector before */
- /* rendering. In case of error, it it translated back to its */
- /* original position and the glyph is left untouched. */
- /* */
- /* The first parameter is a pointer to a FT_Glyph handle, that will */
- /* be replaced by this function. Typically, you would use (omitting */
- /* error handling): */
- /* */
- /* */
- /* { */
- /* FT_Glyph glyph; */
- /* FT_BitmapGlyph glyph_bitmap; */
- /* */
- /* */
- /* // load glyph */
- /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */
- /* */
- /* // extract glyph image */
- /* error = FT_Get_Glyph( face->glyph, &glyph ); */
- /* */
- /* // convert to a bitmap (default render mode + destroy old) */
- /* if ( glyph->format != ft_glyph_format_bitmap ) */
- /* { */
- /* error = FT_Glyph_To_Bitmap( &glyph, ft_render_mode_default, */
- /* 0, 1 ); */
- /* if ( error ) // glyph unchanged */
- /* ... */
- /* } */
- /* */
- /* // access bitmap content by typecasting */
- /* glyph_bitmap = (FT_BitmapGlyph)glyph; */
- /* */
- /* // do funny stuff with it, like blitting/drawing */
- /* ... */
- /* */
- /* // discard glyph image (bitmap or not) */
- /* FT_Done_Glyph( glyph ); */
- /* } */
- /* */
- /* */
- /* This function will always fail if the glyph's format isn't */
- /* scalable. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
- FT_ULong render_mode,
- FT_Vector* origin,
- FT_Bool destroy );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Glyph */
- /* */
- /* <Description> */
- /* Destroys a given glyph. */
- /* */
- /* <Input> */
- /* glyph :: A handle to the target glyph object. */
- /* */
- FT_EXPORT_DEF( void ) FT_Done_Glyph( FT_Glyph glyph );
-
-
- /* other helpful functions */
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Matrix_Multiply */
- /* */
- /* <Description> */
- /* Performs the matrix operation `b = a*b'. */
- /* */
- /* <Input> */
- /* a :: A pointer to matrix `a'. */
- /* */
- /* <InOut> */
- /* b :: A pointer to matrix `b'. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* The result is undefined if either `a' or `b' is zero. */
- /* */
- FT_EXPORT_DEF( void ) FT_Matrix_Multiply( FT_Matrix* a,
- FT_Matrix* b );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Matrix_Invert */
- /* */
- /* <Description> */
- /* Inverts a 2x2 matrix. Returns an error if it can't be inverted. */
- /* */
- /* <InOut> */
- /* matrix :: A pointer to the target matrix. Remains untouched in */
- /* case of error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Matrix_Invert( FT_Matrix* matrix );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* FTGLYPH_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftimage.h */
-/* */
-/* FreeType glyph image formats and default raster interface */
-/* (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
- /*************************************************************************/
- /* */
- /* Note: A `raster' is simply a scan-line converter, used to render */
- /* FT_Outlines into FT_Bitmaps. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTIMAGE_H
-#define FTIMAGE_H
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Pos */
- /* */
- /* <Description> */
- /* The type FT_Pos is a 32-bit integer used to store vectorial */
- /* coordinates. Depending on the context, these can represent */
- /* distances in integer font units, or 26.6 fixed float pixel */
- /* coordinates. */
- /* */
- typedef signed long FT_Pos;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Vector */
- /* */
- /* <Description> */
- /* A simple structure used to store a 2D vector; coordinates are of */
- /* the FT_Pos type. */
- /* */
- /* <Fields> */
- /* x :: The horizontal coordinate. */
- /* y :: The vertical coordinate. */
- /* */
- typedef struct FT_Vector_
- {
- FT_Pos x;
- FT_Pos y;
-
- } FT_Vector;
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Pixel_Mode */
- /* */
- /* <Description> */
- /* An enumeration type used to describe the format of pixels in a */
- /* given bitmap. Note that additional formats may be added in the */
- /* future. */
- /* */
- /* <Fields> */
- /* ft_pixel_mode_mono :: A monochrome bitmap (1 bit/pixel). */
- /* */
- /* ft_pixel_mode_grays :: An 8-bit gray-levels bitmap. Note that the */
- /* total number of gray levels is given in the */
- /* `num_grays' field of the FT_Bitmap */
- /* structure. */
- /* */
- /* ft_pixel_mode_pal2 :: A 2-bit paletted bitmap. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_pal4 :: A 4-bit paletted bitmap. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_pal8 :: An 8-bit paletted bitmap. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_rgb15 :: A 15-bit RGB bitmap. Uses 5:5:5 encoding. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_rgb16 :: A 16-bit RGB bitmap. Uses 5:6:5 encoding. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_rgb24 :: A 24-bit RGB bitmap. */
- /* Currently unused by FreeType. */
- /* */
- /* ft_pixel_mode_rgb32 :: A 32-bit RGB bitmap. */
- /* Currently unused by FreeType. */
- /* */
- /* <Note> */
- /* Some anti-aliased bitmaps might be embedded in TrueType fonts */
- /* using formats pal2 or pal4, though no fonts presenting those have */
- /* been found to date. */
- /* */
- typedef enum FT_Pixel_Mode_
- {
- ft_pixel_mode_none = 0,
- ft_pixel_mode_mono,
- ft_pixel_mode_grays,
- ft_pixel_mode_pal2,
- ft_pixel_mode_pal4,
- ft_pixel_mode_pal8,
- ft_pixel_mode_rgb15,
- ft_pixel_mode_rgb16,
- ft_pixel_mode_rgb24,
- ft_pixel_mode_rgb32,
-
- ft_pixel_mode_max /* do not remove */
-
- } FT_Pixel_Mode;
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Palette_Mode */
- /* */
- /* <Description> */
- /* An enumeration type used to describe the format of a bitmap */
- /* palette, used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8. */
- /* */
- /* <Fields> */
- /* ft_palette_mode_rgb :: The palette is an array of 3-bytes RGB */
- /* records. */
- /* */
- /* ft_palette_mode_rgba :: The palette is an array of 4-bytes RGBA */
- /* records. */
- /* */
- /* <Note> */
- /* As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by */
- /* FreeType, these types are not handled by the library itself. */
- /* */
- typedef enum FT_Palette_Mode_
- {
- ft_palette_mode_rgb = 0,
- ft_palette_mode_rgba,
-
- ft_palettte_mode_max /* do not remove */
-
- } FT_Palette_Mode;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Bitmap */
- /* */
- /* <Description> */
- /* A structure used to describe a bitmap or pixmap to the raster. */
- /* Note that we now manage pixmaps of various depths through the */
- /* `pixel_mode' field. */
- /* */
- /* <Fields> */
- /* rows :: The number of bitmap rows. */
- /* */
- /* width :: The number of pixels in bitmap row. */
- /* */
- /* pitch :: The pitch's absolute value is the number of bytes */
- /* taken by one bitmap row, including padding. */
- /* However, the pitch is positive when the bitmap has */
- /* a `down' flow, and negative when it has an `up' */
- /* flow. In all cases, the pitch is an offset to add */
- /* to a bitmap pointer in order to go down one row. */
- /* */
- /* buffer :: A typeless pointer to the bitmap buffer. This */
- /* value should be aligned on 32-bit boundaries in */
- /* most cases. */
- /* */
- /* num_grays :: This field is only used with */
- /* `ft_pixel_mode_grays'; it gives the number of gray */
- /* levels used in the bitmap. */
- /* */
- /* pixel_mode :: The pixel_mode, i.e., how pixel bits are stored. */
- /* */
- /* palette_mode :: This field is only used with paletted pixel modes; */
- /* it indicates how the palette is stored. */
- /* */
- /* palette :: A typeless pointer to the bitmap palette; only */
- /* used for paletted pixel modes. */
- /* */
- /* <Note> */
- /* For now, the only pixel mode supported by FreeType are mono and */
- /* grays. However, drivers might be added in the future to support */
- /* more `colorful' options. */
- /* */
- /* When using pixel modes pal2, pal4 and pal8 with a void `palette' */
- /* field, a gray pixmap with respectively 4, 16, and 256 levels of */
- /* gray is assumed. This, in order to be compatible with some */
- /* embedded bitmap formats defined in the TrueType specification. */
- /* */
- /* Note that no font was found presenting such embedded bitmaps, so */
- /* this is currently completely unhandled by the library. */
- /* */
- typedef struct FT_Bitmap_
- {
- int rows;
- int width;
- int pitch;
- unsigned char* buffer;
- short num_grays;
- char pixel_mode;
- char palette_mode;
- void* palette;
-
- } FT_Bitmap;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Outline */
- /* */
- /* <Description> */
- /* This structure is used to describe an outline to the scan-line */
- /* converter. */
- /* */
- /* <Fields> */
- /* n_contours :: The number of contours in the outline. */
- /* */
- /* n_points :: The number of points in the outline. */
- /* */
- /* points :: A pointer to an array of `n_points' FT_Vector */
- /* elements, giving the outline's point coordinates. */
- /* */
- /* tags :: A pointer to an array of `n_points' chars, giving */
- /* giving each outline point's type. If bit 0 is */
- /* unset, the point is 'off' the curve, i.e. a Bezier */
- /* control point, while it is `on' when unset. */
- /* */
- /* Bit 1 is meaningful for `off' points only. If set, */
- /* it indicates a third-order Bezier arc control point; */
- /* and a second-order control point if unset. */
- /* */
- /* contours :: An array of `n_contours' shorts, giving the end */
- /* point of each contour within the outline. For */
- /* example, the first contour is defined by the points */
- /* `0' to `contours[0]', the second one is defined by */
- /* the points `contours[0]+1' to `contours[1]', etc. */
- /* */
- /* flags :: A set of bit flags used to characterize the outline */
- /* and give hints to the scan-converter and hinter on */
- /* how to convert/grid-fit it. See FT_Outline_Flags. */
- /* */
- typedef struct FT_Outline_
- {
- short n_contours; /* number of contours in glyph */
- short n_points; /* number of points in the glyph */
-
- FT_Vector* points; /* the outline's points */
- char* tags; /* the points flags */
- short* contours; /* the contour end points */
-
- int flags; /* outline masks */
-
- } FT_Outline;
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Outline_Flags */
- /* */
- /* <Description> */
- /* A simple type used to enumerates the flags in an outline's */
- /* `outline_flags' field. */
- /* */
- /* <Fields> */
- /* ft_outline_owner :: If set, this flag indicates that the */
- /* outline's field arrays (i.e. */
- /* `points', `flags' & `contours') are */
- /* `owned' by the outline object, and */
- /* should thus be freed when it is */
- /* destroyed. */
- /* */
- /* ft_outline_even_odd_fill :: By default, outlines are filled using */
- /* the non-zero winding rule. If set to */
- /* 1, the outline will be filled using */
- /* the even-odd fill rule (only works */
- /* with the smooth raster). */
- /* */
- /* ft_outline_reverse_fill :: By default, outside contours of an */
- /* outline are oriented in clock-wise */
- /* direction, as defined in the TrueType */
- /* specification. This flag is set if */
- /* the outline uses the opposite */
- /* direction (typically for Type 1 */
- /* fonts). This flag is ignored by the */
- /* scan-converter. However, it is very */
- /* important for the auto-hinter. */
- /* */
- /* ft_outline_ignore_dropouts :: By default, the scan converter will */
- /* try to detect drop-outs in an outline */
- /* and correct the glyph bitmap to */
- /* ensure consistent shape continuity. */
- /* If set, this flag hints the scan-line */
- /* converter to ignore such cases. */
- /* */
- /* ft_outline_high_precision :: This flag indicates that the */
- /* scan-line converter should try to */
- /* convert this outline to bitmaps with */
- /* the highest possible quality. It is */
- /* typically set for small character */
- /* sizes. Note that this is only a */
- /* hint, that might be completely */
- /* ignored by a given scan-converter. */
- /* */
- /* ft_outline_single_pass :: This flag is set to force a given */
- /* scan-converter to only use a single */
- /* pass over the outline to render a */
- /* bitmap glyph image. Normally, it is */
- /* set for very large character sizes. */
- /* It is only a hint, that might be */
- /* completely ignored by a given */
- /* scan-converter. */
- /* */
- typedef enum FT_Outline_Flags_
- {
- ft_outline_none = 0,
- ft_outline_owner = 1,
- ft_outline_even_odd_fill = 2,
- ft_outline_reverse_fill = 4,
- ft_outline_ignore_dropouts = 8,
- ft_outline_high_precision = 256,
- ft_outline_single_pass = 512
-
- } FT_Outline_Flags;
-
-
-#define FT_CURVE_TAG( flag ) ( flag & 3 )
-
-#define FT_Curve_Tag_On 1
-#define FT_Curve_Tag_Conic 0
-#define FT_Curve_Tag_Cubic 2
-
-#define FT_Curve_Tag_Touch_X 8 /* reserved for the TrueType hinter */
-#define FT_Curve_Tag_Touch_Y 16 /* reserved for the TrueType hinter */
-
-#define FT_Curve_Tag_Touch_Both ( FT_Curve_Tag_Touch_X | \
- FT_Curve_Tag_Touch_Y )
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Outline_MoveTo_Func */
- /* */
- /* <Description> */
- /* A function pointer type used to describe the signature of a `move */
- /* to' function during outline walking/decomposition. */
- /* */
- /* A `move to' is emitted to start a new contour in an outline. */
- /* */
- /* <Input> */
- /* to :: A pointer to the target point of the `move to'. */
- /* */
- /* user :: A typeless pointer which is passed from the caller of the */
- /* decomposition function. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- typedef int (*FT_Outline_MoveTo_Func)( FT_Vector* to,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Outline_LineTo_Func */
- /* */
- /* <Description> */
- /* A function pointer type used to describe the signature of a `line */
- /* to' function during outline walking/decomposition. */
- /* */
- /* A `line to' is emitted to indicate a segment in the outline. */
- /* */
- /* <Input> */
- /* to :: A pointer to the target point of the `line to'. */
- /* */
- /* user :: A typeless pointer which is passed from the caller of the */
- /* decomposition function. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- typedef int (*FT_Outline_LineTo_Func)( FT_Vector* to,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Outline_ConicTo_Func */
- /* */
- /* <Description> */
- /* A function pointer type use to describe the signature of a `conic */
- /* to' function during outline walking/decomposition. */
- /* */
- /* A `conic to' is emitted to indicate a second-order Bezier arc in */
- /* the outline. */
- /* */
- /* <Input> */
- /* control :: An intermediate control point between the last position */
- /* and the new target in `to'. */
- /* */
- /* to :: A pointer to the target end point of the conic arc. */
- /* */
- /* user :: A typeless pointer which is passed from the caller of */
- /* the decomposition function. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- typedef int (*FT_Outline_ConicTo_Func)( FT_Vector* control,
- FT_Vector* to,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Outline_CubicTo_Func */
- /* */
- /* <Description> */
- /* A function pointer type used to describe the signature of a `cubic */
- /* to' function during outline walking/decomposition. */
- /* */
- /* A `cubic to' is emitted to indicate a third-order Bezier arc. */
- /* */
- /* <Input> */
- /* control1 :: A pointer to the first Bezier control point. */
- /* */
- /* control2 :: A pointer to the second Bezier control point. */
- /* */
- /* to :: A pointer to the target end point. */
- /* */
- /* user :: A typeless pointer which is passed from the caller of */
- /* the decomposition function. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- typedef int (*FT_Outline_CubicTo_Func)( FT_Vector* control1,
- FT_Vector* control2,
- FT_Vector* to,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Outline_Funcs */
- /* */
- /* <Description> */
- /* A structure to hold various function pointers used during outline */
- /* decomposition in order to emit segments, conic, and cubic Beziers, */
- /* as well as `move to' and `close to' operations. */
- /* */
- /* <Fields> */
- /* move_to :: The `move to' emitter. */
- /* */
- /* line_to :: The segment emitter. */
- /* */
- /* conic_to :: The second-order Bezier arc emitter. */
- /* */
- /* cubic_to :: The third-order Bezier arc emitter. */
- /* */
- /* shift :: The shift that is applied to coordinates before they */
- /* are sent to the emitter. */
- /* */
- /* delta :: The delta that is applied to coordinates before they */
- /* are sent to the emitter, but after the shift. */
- /* */
- /* <Note> */
- /* The point coordinates sent to the emitters are the transformed */
- /* version of the original coordinates (this is important for high */
- /* accuracy during scan-conversion). The transformation is simple: */
- /* */
- /* x' = (x << shift) - delta */
- /* y' = (x << shift) - delta */
- /* */
- /* Set the value of `shift' and `delta' to 0 to get the original */
- /* point coordinates. */
- /* */
- typedef struct FT_Outline_Funcs_
- {
- FT_Outline_MoveTo_Func move_to;
- FT_Outline_LineTo_Func line_to;
- FT_Outline_ConicTo_Func conic_to;
- FT_Outline_CubicTo_Func cubic_to;
-
- int shift;
- FT_Pos delta;
-
- } FT_Outline_Funcs;
-
-
- /*************************************************************************/
- /* */
- /* <Macro> */
- /* FT_IMAGE_TAG */
- /* */
- /* <Description> */
- /* This macro converts four letter tags into an unsigned long. */
- /* */
-#define FT_IMAGE_TAG( _x1, _x2, _x3, _x4 ) \
- ( ( (unsigned long)_x1 << 24 ) | \
- ( (unsigned long)_x2 << 16 ) | \
- ( (unsigned long)_x3 << 8 ) | \
- (unsigned long)_x4 )
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Glyph_Format */
- /* */
- /* <Description> */
- /* An enumeration type used to describe the format of a given glyph */
- /* image. Note that this version of FreeType only supports two image */
- /* formats, even though future font drivers will be able to register */
- /* their own format. */
- /* */
- /* <Fields> */
- /* ft_glyph_format_composite :: The glyph image is a composite of */
- /* several other images. This glyph */
- /* format is _only_ used with the */
- /* FT_LOAD_FLAG_NO_RECURSE flag (XXX: */
- /* Which is currently unimplemented). */
- /* */
- /* ft_glyph_format_bitmap :: The glyph image is a bitmap, and can */
- /* be described as a FT_Bitmap. */
- /* */
- /* ft_glyph_format_outline :: The glyph image is a vectorial image */
- /* made of bezier control points, and */
- /* can be described as a FT_Outline. */
- /* */
- /* ft_glyph_format_plotter :: The glyph image is a vectorial image */
- /* made of plotter lines (some T1 fonts */
- /* like Hershey contain glyph in this */
- /* format). */
- /* */
- typedef enum FT_Glyph_Format_
- {
- ft_glyph_format_none = 0,
- ft_glyph_format_composite = FT_IMAGE_TAG( 'c', 'o', 'm', 'p' ),
- ft_glyph_format_bitmap = FT_IMAGE_TAG( 'b', 'i', 't', 's' ),
- ft_glyph_format_outline = FT_IMAGE_TAG( 'o', 'u', 't', 'l' ),
- ft_glyph_format_plotter = FT_IMAGE_TAG( 'p', 'l', 'o', 't' )
-
- } FT_Glyph_Format;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** R A S T E R D E F I N I T I O N S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* A raster is a scan converter, in charge of rendering an outline into */
- /* a a bitmap. This section contains the public API for rasters. */
- /* */
- /* Note that in FreeType 2, all rasters are now encapsulated within */
- /* specific modules called `renderers'. See `freetype/ftrender.h' for */
- /* more details on renderers. */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Raster */
- /* */
- /* <Description> */
- /* A handle (pointer) to a raster object. Each object can be used */
- /* independently to convert an outline into a bitmap or pixmap. */
- /* */
- typedef struct FT_RasterRec_* FT_Raster;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Span */
- /* */
- /* <Description> */
- /* A structure used to model a single span of gray (or black) pixels */
- /* when rendering a monochrome or anti-aliased bitmap. */
- /* */
- /* <Fields> */
- /* x :: The span's horizontal start position. */
- /* */
- /* len :: The span's length in pixels. */
- /* */
- /* coverage :: The span color/coverage, ranging from 0 (background) */
- /* to 255 (foreground). Only used for anti-aliased */
- /* rendering. */
- /* */
- /* <Note> */
- /* This structure is used by the span drawing callback type named */
- /* FT_Raster_Span_Func(), which takes the y-coordinate of the span as */
- /* a parameter. */
- /* */
- /* The coverage value is always between 0 and 255, even if the number */
- /* of gray levels have been set through FT_Set_Gray_Levels(). */
- /* */
- typedef struct FT_Span_
- {
- short x;
- unsigned short len;
- unsigned char coverage;
-
- } FT_Span;
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_Span_Func */
- /* */
- /* <Description> */
- /* A function used as a call-back by the anti-aliased renderer in */
- /* order to let client applications draw themselves the gray pixel */
- /* spans on each scan line. */
- /* */
- /* <Input> */
- /* y :: The scanline's y-coordinate. */
- /* */
- /* count :: The number of spans to draw on this scanline. */
- /* */
- /* spans :: A table of `count' spans to draw on the scanline. */
- /* */
- /* user :: User-supplied data that is passed to the callback. */
- /* */
- /* <Note> */
- /* This callback allows client applications to directly render the */
- /* gray spans of the anti-aliased bitmap to any kind of surfaces. */
- /* */
- /* This can be used to write anti-aliased outlines directly to a */
- /* given background bitmap, and even perform translucency. */
- /* */
- /* Note that the `count' field cannot be greater than a fixed value */
- /* defined by the FT_MAX_GRAY_SPANS configuration macro in */
- /* ftoption.h. By default, this value is set to 32, which means that */
- /* if there are more than 32 spans on a given scanline, the callback */
- /* will be called several times with the same `y' parameter in order */
- /* to draw all callbacks. */
- /* */
- /* Otherwise, the callback is only called once per scan-line, and */
- /* only for those scanlines that do have `gray' pixels on them. */
- /* */
- typedef void (*FT_Raster_Span_Func)( int y,
- int count,
- FT_Span* spans,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_BitTest_Func */
- /* */
- /* <Description> */
- /* A function used as a call-back by the monochrome scan-converter */
- /* to test whether a given target pixel is already set to the drawing */
- /* `color'. These tests are crucial to implement drop-out control */
- /* per-se the TrueType spec. */
- /* */
- /* <Input> */
- /* y :: The pixel's y-coordinate. */
- /* */
- /* x :: The pixel's x-coordinate. */
- /* */
- /* user :: User-supplied data that is passed to the callback. */
- /* */
- /* <Return> */
- /* 1 if the pixel is `set', 0 otherwise. */
- /* */
- typedef int (*FT_Raster_BitTest_Func)( int y,
- int x,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_BitSet_Func */
- /* */
- /* <Description> */
- /* A function used as a call-back by the monochrome scan-converter */
- /* to set an individual target pixel. This is crucial to implement */
- /* drop-out control according to the TrueType specification. */
- /* */
- /* <Input> */
- /* y :: The pixel's y-coordinate. */
- /* */
- /* x :: The pixel's x-coordinate. */
- /* */
- /* user :: User-supplied data that is passed to the callback. */
- /* */
- /* <Return> */
- /* 1 if the pixel is `set', 0 otherwise. */
- /* */
- typedef void (*FT_Raster_BitSet_Func)( int y,
- int x,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* FT_Raster_Flag */
- /* */
- /* <Description> */
- /* An enumeration to list the bit flags as used in the `flags' field */
- /* of a FT_Raster_Params structure. */
- /* */
- /* <Fields> */
- /* ft_raster_flag_default :: This value is 0. */
- /* */
- /* ft_raster_flag_aa :: Requests the rendering of an */
- /* anti-aliased glyph bitmap. If unset, a */
- /* monchrome bitmap will be rendered. */
- /* */
- /* ft_raster_flag_direct :: Requests direct rendering over the */
- /* target bitmap. Direct rendering uses */
- /* user-provided callbacks in order to */
- /* perform direct drawing or composition */
- /* over an existing bitmap. If this bit is */
- /* unset, the content of the target bitmap */
- /* *must be zeroed*! */
- /* */
- typedef enum
- {
- ft_raster_flag_default = 0,
- ft_raster_flag_aa = 1,
- ft_raster_flag_direct = 2
-
- } FT_Raster_Flag;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Raster_Params */
- /* */
- /* <Description> */
- /* A structure to hold the arguments used by a raster's render */
- /* function. */
- /* */
- /* <Fields> */
- /* target :: The target bitmap. */
- /* */
- /* source :: A pointer to the source glyph image (e.g. an */
- /* FT_Outline). */
- /* */
- /* flags :: The rendering flags. */
- /* */
- /* gray_spans :: The gray span drawing callback. */
- /* */
- /* black_spans :: The black span drawing callback. */
- /* */
- /* bit_test :: The bit test callback. */
- /* */
- /* bit_set :: The bit set callback. */
- /* */
- /* user :: User-supplied data that is passed to each drawing */
- /* callback. */
- /* */
- /* <Note> */
- /* An anti-aliased glyph bitmap is drawn if the ft_raster_flag_aa bit */
- /* flag is set in the `flags' field, otherwise a monochrome bitmap */
- /* will be generated. */
- /* */
- /* If the ft_raster_flag_direct bit flag is set in `flags', the */
- /* raster will call the `gray_spans' callback to draw gray pixel */
- /* spans, in the case of an aa glyph bitmap, it will call */
- /* `black_spans', and `bit_test' and `bit_set' in the case of a */
- /* monochrome bitmap. This allows direct composition over a */
- /* pre-existing bitmap through user-provided callbacks to perform the */
- /* span drawing/composition. */
- /* */
- /* Note that the `bit_test' and `bit_set' callbacks are required when */
- /* rendering a monochrome bitmap, as they are crucial to implement */
- /* correct drop-out control as defined in the TrueType specification. */
- /* */
- typedef struct FT_Raster_Params_
- {
- FT_Bitmap* target;
- void* source;
- int flags;
- FT_Raster_Span_Func gray_spans;
- FT_Raster_Span_Func black_spans;
- FT_Raster_BitTest_Func bit_test;
- FT_Raster_BitSet_Func bit_set;
- void* user;
-
- } FT_Raster_Params;
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_New_Func */
- /* */
- /* <Description> */
- /* A function used to create a new raster object. */
- /* */
- /* <Input> */
- /* memory :: A handle to the memory allocator. */
- /* */
- /* <Output> */
- /* raster :: A handle to the new raster object. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- /* <Note> */
- /* The `memory' parameter is a typeless pointer in order to avoid */
- /* un-wanted dependencies on the rest of the FreeType code. In */
- /* practice, it is a FT_Memory, i.e., a handle to the standard */
- /* FreeType memory allocator. However, this field can be completely */
- /* ignored by a given raster implementation. */
- /* */
- typedef int (*FT_Raster_New_Func)( void* memory,
- FT_Raster* raster );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_Done_Func */
- /* */
- /* <Description> */
- /* A function used to destroy a given raster object. */
- /* */
- /* <Input> */
- /* raster :: A handle to the raster object. */
- /* */
- typedef void (*FT_Raster_Done_Func)( FT_Raster raster );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_Reset_Func */
- /* */
- /* <Description> */
- /* FreeType provides an area of memory called the `render pool', */
- /* available to all registered rasters. This pool can be freely used */
- /* during a given scan-conversion but is shared by all rasters. Its */
- /* content is thus transient. */
- /* */
- /* This function is called each time the render pool changes, or just */
- /* after a new raster object is created. */
- /* */
- /* <Input> */
- /* raster :: A handle to the new raster object. */
- /* */
- /* pool_base :: The address in memory of the render pool. */
- /* */
- /* pool_size :: The size in bytes of the render pool. */
- /* */
- /* <Note> */
- /* Rasters can ignore the render pool and rely on dynamic memory */
- /* allocation if they want to (a handle to the memory allocator is */
- /* passed to the raster constructor). However, this is not */
- /* recommended for efficiency purposes. */
- /* */
- typedef void (*FT_Raster_Reset_Func)( FT_Raster raster,
- unsigned char* pool_base,
- unsigned long pool_size );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_Set_Mode_Func */
- /* */
- /* <Description> */
- /* This function is a generic facility to change modes or attributes */
- /* in a given raster. This can be used for debugging purposes, or */
- /* simply to allow implementation-specific `features' in a given */
- /* raster module. */
- /* */
- /* <Input> */
- /* raster :: A handle to the new raster object. */
- /* */
- /* mode :: A 4-byte tag used to name the mode or property. */
- /* */
- /* args :: A pointer to the new mode/property to use. */
- /* */
- typedef int (*FT_Raster_Set_Mode_Func)( FT_Raster raster,
- unsigned long mode,
- void* args );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Raster_Render_Func */
- /* */
- /* <Description> */
- /* Invokes a given raster to scan-convert a given glyph image into a */
- /* target bitmap. */
- /* */
- /* <Input> */
- /* raster :: A handle to the raster object. */
- /* */
- /* params :: A pointer to a FT_Raster_Params structure used to store */
- /* the rendering parameters. */
- /* */
- /* <Return> */
- /* Error code. 0 means success. */
- /* */
- /* <Note> */
- /* The exact format of the source image depends on the raster's glyph */
- /* format defined in its FT_Raster_Funcs structure. It can be an */
- /* FT_Outline or anything else in order to support a large array of */
- /* glyph formats. */
- /* */
- /* Note also that the render function can fail and return a */
- /* FT_Err_Unimplemented_Feature error code if the raster used does */
- /* not support direct composition. */
- /* */
- /* XXX: For now, the standard raster doesn't support direct */
- /* composition but this should change for the final release (see */
- /* the files demos/src/ftgrays.c and demos/src/ftgrays2.c for */
- /* examples of distinct implementations which support direct */
- /* composition). */
- /* */
- typedef int (*FT_Raster_Render_Func)( FT_Raster raster,
- FT_Raster_Params* params );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Raster_Funcs */
- /* */
- /* <Description> */
- /* A structure used to describe a given raster class to the library. */
- /* */
- /* <Fields> */
- /* glyph_format :: The supported glyph format for this raster. */
- /* */
- /* raster_new :: The raster constructor. */
- /* */
- /* raster_reset :: Used to reset the render pool within the raster. */
- /* */
- /* raster_render :: A function to render a glyph into a given bitmap. */
- /* */
- /* raster_done :: The raster destructor. */
- /* */
- typedef struct FT_Raster_Funcs_
- {
- FT_Glyph_Format glyph_format;
- FT_Raster_New_Func raster_new;
- FT_Raster_Reset_Func raster_reset;
- FT_Raster_Set_Mode_Func raster_set_mode;
- FT_Raster_Render_Func raster_render;
- FT_Raster_Done_Func raster_done;
-
- } FT_Raster_Funcs;
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTIMAGE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftmm.h */
-/* */
-/* FreeType Multiple Master font interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTMM_H
-#define FTMM_H
-
-#include <freetype/t1tables.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_MM_Axis */
- /* */
- /* <Description> */
- /* A simple structure used to model a given axis in design space for */
- /* Multiple Masters fonts. */
- /* */
- /* <Fields> */
- /* name :: The axis's name. */
- /* */
- /* minimum :: The axis's minimum design coordinate. */
- /* */
- /* maximum :: The axis's maximum design coordinate. */
- /* */
- typedef struct FT_MM_Axis_
- {
- FT_String* name;
- FT_Long minimum;
- FT_Long maximum;
-
- } FT_MM_Axis;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Multi_Master */
- /* */
- /* <Description> */
- /* A structure used to model the axes and space of a Multiple Masters */
- /* font. */
- /* */
- /* <Fields> */
- /* num_axis :: Number of axes. Cannot exceed 4. */
- /* */
- /* num_designs :: Number of designs; should ne normally 2^num_axis */
- /* even though the Type 1 specification strangely */
- /* allows for intermediate designs to be present. This */
- /* number cannot exceed 16. */
- /* */
- /* axis :: A table of axis descriptors. */
- /* */
- typedef struct FT_Multi_Master_
- {
- FT_UInt num_axis;
- FT_UInt num_designs;
- FT_MM_Axis axis[T1_MAX_MM_AXIS];
-
- } FT_Multi_Master;
-
-
- typedef FT_Error (*FT_Get_MM_Func)( FT_Face face,
- FT_Multi_Master* master );
-
- typedef FT_Error (*FT_Set_MM_Design_Func)( FT_Face face,
- FT_UInt num_coords,
- FT_Long* coords );
-
- typedef FT_Error (*FT_Set_MM_Blend_Func)( FT_Face face,
- FT_UInt num_coords,
- FT_Long* coords );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Multi_Master */
- /* */
- /* <Description> */
- /* Retrieves the Multiple Master descriptor of a given font. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* <Output> */
- /* master :: The Multiple Masters descriptor. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Get_Multi_Master( FT_Face face,
- FT_Multi_Master* master );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_MM_Design_Coordinates */
- /* */
- /* <Description> */
- /* For Multiple Masters fonts, choose an interpolated font design */
- /* through design coordinates. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* num_coords :: The number of design coordinates (must be equal to */
- /* the number of axes in the font). */
- /* */
- /* coords :: The design coordinates. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_MM_Design_Coordinates(
- FT_Face face,
- FT_UInt num_coords,
- FT_Long* coords );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_MM_Blend_Coordinates */
- /* */
- /* <Description> */
- /* For Multiple Masters fonts, choose an interpolated font design */
- /* through normalized blend coordinates. */
- /* */
- /* <Input> */
- /* face :: A handle to the source face. */
- /* */
- /* num_coords :: The number of design coordinates (must be equal to */
- /* the number of axes in the font). */
- /* */
- /* coords :: The design coordinates (each one must be between 0 */
- /* and 1.0). */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Set_MM_Blend_Coordinates(
- FT_Face face,
- FT_UInt num_coords,
- FT_Fixed* coords );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* FTMM_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftmodule.h */
-/* */
-/* FreeType modules public interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTMODULE_H
-#define FTMODULE_H
-
-#include <freetype/freetype.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /* module bit flags */
- typedef enum FT_Module_Flags_
- {
- ft_module_font_driver = 1, /* this module is a font driver */
- ft_module_renderer = 2, /* this module is a renderer */
- ft_module_hinter = 4, /* this module is a glyph hinter */
- ft_module_styler = 8, /* this module is a styler */
-
- ft_module_driver_scalable = 0x100, /* the driver supports scalable */
- /* fonts */
- ft_module_driver_no_outlines = 0x200, /* the driver does not support */
- /* vector outlines */
- ft_module_driver_has_hinter = 0x400 /* the driver provides its own */
- /* hinter */
-
- } FT_Module_Flags;
-
-
- typedef void (*FT_Module_Interface)( void );
-
- typedef FT_Error (*FT_Module_Constructor)( FT_Module module );
-
- typedef void (*FT_Module_Destructor)( FT_Module module );
-
- typedef FT_Module_Interface (*FT_Module_Requester)( FT_Module module,
- const char* name );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Module_Class */
- /* */
- /* <Description> */
- /* The module class descriptor. */
- /* */
- /* <Fields> */
- /* module_flags :: Bit flags describing the module. */
- /* */
- /* module_size :: The size of one module object/instance in */
- /* bytes. */
- /* */
- /* module_name :: The name of the module. */
- /* */
- /* module_version :: The version, as a 16.16 fixed number */
- /* (major.minor). */
- /* */
- /* module_requires :: The version of FreeType this module requires */
- /* (starts at version 2.0, i.e 0x20000) */
- /* */
- /* module_init :: A function used to initialize (not create) a */
- /* new module object. */
- /* */
- /* module_done :: A function used to finalize (not destroy) a */
- /* given module object */
- /* */
- /* get_interface :: Queries a given module for a specific */
- /* interface by name. */
- /* */
- typedef struct FT_Module_Class_
- {
- FT_ULong module_flags;
- FT_Int module_size;
- const FT_String* module_name;
- FT_Fixed module_version;
- FT_Fixed module_requires;
-
- const void* module_interface;
-
- FT_Module_Constructor module_init;
- FT_Module_Destructor module_done;
- FT_Module_Requester get_interface;
-
- } FT_Module_Class;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Module */
- /* */
- /* <Description> */
- /* Adds a new module to a given library instance. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* clazz :: A pointer to class descriptor for the module. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* An error will be returned if a module already exists by that name, */
- /* or if the module requires a version of FreeType that is too great. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Add_Module( FT_Library library,
- const FT_Module_Class* clazz );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Module */
- /* */
- /* <Description> */
- /* Finds a module by its name. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* module_name :: The module's name (as an ASCII string). */
- /* */
- /* <Return> */
- /* A module handle. 0 if none was found. */
- /* */
- /* <Note> */
- /* You should better be familiar with FreeType internals to know */
- /* which module to look for :-) */
- /* */
- FT_EXPORT_DEF( FT_Module ) FT_Get_Module( FT_Library library,
- const char* module_name );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Remove_Module */
- /* */
- /* <Description> */
- /* Removes a given module from a library instance. */
- /* */
- /* <Input> */
- /* library :: A handle to a library object. */
- /* */
- /* module :: A handle to a module object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The module object is destroyed by the function in case of success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Remove_Module( FT_Library library,
- FT_Module module );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_New_Library */
- /* */
- /* <Description> */
- /* This function is used to create a new FreeType library instance */
- /* from a given memory object. It is thus possible to use libraries */
- /* with distinct memory allocators within the same program. */
- /* */
- /* <Input> */
- /* memory :: A handle to the original memory object. */
- /* */
- /* <Output> */
- /* alibrary :: A pointer to handle of a new library object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_New_Library( FT_Memory memory,
- FT_Library* library );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Done_Library */
- /* */
- /* <Description> */
- /* Discards a given library object. This closes all drivers and */
- /* discards all resource objects. */
- /* */
- /* <Input> */
- /* library :: A handle to the target library. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Done_Library( FT_Library library );
-
-
-
- typedef void (*FT_DebugHook_Func)( void* arg );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Debug_Hook */
- /* */
- /* <Description> */
- /* Sets a debug hook function for debugging the interpreter of a font */
- /* format. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* hook_index :: The index of the debug hook. You should use the */
- /* values defined in ftobjs.h, e.g. */
- /* FT_DEBUG_HOOK_TRUETYPE */
- /* */
- /* debug_hook :: The function used to debug the interpreter. */
- /* */
- /* <Note> */
- /* Currently, four debug hook slots are available, but only two (for */
- /* the TrueType and the Type 1 interpreter) are defined. */
- /* */
- FT_EXPORT_DEF( void ) FT_Set_Debug_Hook( FT_Library library,
- FT_UInt hook_index,
- FT_DebugHook_Func debug_hook );
-
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Add_Default_Modules */
- /* */
- /* <Description> */
- /* Adds the set of default drivers to a given library object. */
- /* This is only useful when you create a library object with */
- /* FT_New_Library() (usually to plug a custom memory manager). */
- /* */
- /* <InOut> */
- /* library :: A handle to a new library object. */
- /* */
- FT_EXPORT_DEF( void ) FT_Add_Default_Modules( FT_Library library );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTMODULE_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftnames.h */
-/* */
-/* Simple interface to access SFNT name tables (which are used */
-/* to hold font names, copyright info, notices, etc.). */
-/* */
-/* This is _not_ used to retrieve glyph names! */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTNAMES_H
-#define FTNAMES_H
-
-
-#include <freetype/freetype.h>
-
-
- typedef struct FT_SfntName_
- {
- FT_UShort platform_id;
- FT_UShort encoding_id;
- FT_UShort language_id;
- FT_UShort name_id;
-
- FT_Byte* string;
- FT_UInt string_len; /* in bytes */
-
- } FT_SfntName;
-
-
- FT_EXPORT_DEF( FT_UInt ) FT_Get_Sfnt_Name_Count( FT_Face face );
-
- FT_EXPORT_DEF( FT_Error ) FT_Get_Sfnt_Name( FT_Face face,
- FT_UInt index,
- FT_SfntName* aname );
-
-
-#endif /* FTNAMES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftoutln.h */
-/* */
-/* Support for the FT_Outline type used to store glyph shapes of */
-/* most scalable font formats (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTOUTLN_H
-#define FTOUTLN_H
-
-
-#include <freetype/freetype.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Decompose */
- /* */
- /* <Description> */
- /* Walks over an outline's structure to decompose it into individual */
- /* segments and Bezier arcs. This function is also able to emit */
- /* `move to' and `close to' operations to indicate the start and end */
- /* of new contours in the outline. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the source target. */
- /* */
- /* interface :: A table of `emitters', i.e,. function pointers called */
- /* during decomposition to indicate path operations. */
- /* */
- /* user :: A typeless pointer which is passed to each emitter */
- /* during the decomposition. It can be used to store */
- /* the state during the decomposition. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means sucess. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Decompose(
- FT_Outline* outline,
- FT_Outline_Funcs* interface,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_New */
- /* */
- /* <Description> */
- /* Creates a new outline of a given size. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object from where the */
- /* outline is allocated. Note however that the new */
- /* outline will NOT necessarily be FREED, when */
- /* destroying the library, by FT_Done_FreeType(). */
- /* */
- /* numPoints :: The maximal number of points within the outline. */
- /* */
- /* numContours :: The maximal number of contours within the outline. */
- /* */
- /* <Output> */
- /* outline :: A handle to the new outline. NULL in case of */
- /* error. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* No. */
- /* */
- /* <Note> */
- /* The reason why this function takes a `library' parameter is simply */
- /* to use the library's memory allocator. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_New( FT_Library library,
- FT_UInt numPoints,
- FT_Int numContours,
- FT_Outline* outline );
-
-
- FT_EXPORT_DEF( FT_Error ) FT_Outline_New_Internal(
- FT_Memory memory,
- FT_UInt numPoints,
- FT_Int numContours,
- FT_Outline* outline );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Done */
- /* */
- /* <Description> */
- /* Destroys an outline created with FT_Outline_New(). */
- /* */
- /* <Input> */
- /* library :: A handle of the library object used to allocate the */
- /* outline. */
- /* */
- /* outline :: A pointer to the outline object to be discarded. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* No. */
- /* */
- /* <Note> */
- /* If the outline's `owner' field is not set, only the outline */
- /* descriptor will be released. */
- /* */
- /* The reason why this function takes an `outline' parameter is */
- /* simply to use FT_Free(). */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Done( FT_Library library,
- FT_Outline* outline );
-
-
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Done_Internal( FT_Memory memory,
- FT_Outline* outline );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Get_CBox */
- /* */
- /* <Description> */
- /* Returns an outline's `control box'. The control box encloses all */
- /* the outline's points, including Bezier control points. Though it */
- /* coincides with the exact bounding box for most glyphs, it can be */
- /* slightly larger in some situations (like when rotating an outline */
- /* which contains Bezier outside arcs). */
- /* */
- /* Computing the control box is very fast, while getting the bounding */
- /* box can take much more time as it needs to walk over all segments */
- /* and arcs in the outline. To get the latter, you can use the */
- /* `ftbbox' component which is dedicated to this single task. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* <Output> */
- /* cbox :: The outline's control box. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_DEF( void ) FT_Outline_Get_CBox( FT_Outline* outline,
- FT_BBox* cbox );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Translate */
- /* */
- /* <Description> */
- /* Applies a simple translation to the points of an outline. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the target outline descriptor. */
- /* */
- /* xOffset :: The horizontal offset. */
- /* */
- /* yOffset :: The vertical offset. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- FT_EXPORT_DEF( void ) FT_Outline_Translate( FT_Outline* outline,
- FT_Pos xOffset,
- FT_Pos yOffset );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Copy */
- /* */
- /* <Description> */
- /* Copies an outline into another one. Both objects must have the */
- /* same sizes (number of points & number of contours) when this */
- /* function is called. */
- /* */
- /* <Input> */
- /* source :: A handle to the source outline. */
- /* */
- /* <Output> */
- /* target :: A handle to the target outline. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Copy( FT_Outline* source,
- FT_Outline* target );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Vector_Transform */
- /* */
- /* <Description> */
- /* Transforms a single vector through a 2x2 matrix. */
- /* */
- /* <InOut> */
- /* vector :: The target vector to transform. */
- /* */
- /* <Input> */
- /* matrix :: A pointer to the source 2x2 matrix. */
- /* */
- /* <MT-Note> */
- /* Yes. */
- /* */
- /* <Note> */
- /* The result is undefined if either `vector' or `matrix' is invalid. */
- /* */
- FT_EXPORT_DEF( void ) FT_Outline_Transform( FT_Outline* outline,
- FT_Matrix* matrix );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Reverse */
- /* */
- /* <Description> */
- /* Reverses the drawing direction of an outline. This is used to */
- /* ensure consistent fill conventions for mirrored glyphs. */
- /* */
- /* <Input> */
- /* outline :: A pointer to the target outline descriptor. */
- /* */
- /* <Note> */
- /* This functions toggles the bit flag `ft_outline_reverse_fill' in */
- /* the outline's `flags' field. */
- /* */
- /* It shouldn't be used by a normal client application, unless it */
- /* knows what it is doing. */
- /* */
- FT_EXPORT_DEF( void ) FT_Outline_Reverse( FT_Outline* outline );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Get_Bitmap */
- /* */
- /* <Description> */
- /* Renders an outline within a bitmap. The outline's image is simply */
- /* OR-ed to the target bitmap. */
- /* */
- /* <Input> */
- /* library :: A handle to a FreeType library object. */
- /* */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* map :: A pointer to the target bitmap descriptor. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* YES. Rendering is synchronized, so that concurrent calls to the */
- /* scan-line converter will be serialized. */
- /* */
- /* <Note> */
- /* This function does NOT CREATE the bitmap, it only renders an */
- /* outline image within the one you pass to it! */
- /* */
- /* It will use the raster correponding to the default glyph format. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Get_Bitmap( FT_Library library,
- FT_Outline* outline,
- FT_Bitmap* bitmap );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Outline_Render */
- /* */
- /* <Description> */
- /* Renders an outline within a bitmap using the current scan-convert. */
- /* This functions uses an FT_Raster_Params structure as an argument, */
- /* allowing advanced features like direct composition, translucency, */
- /* etc. */
- /* */
- /* <Input> */
- /* library :: A handle to a FreeType library object. */
- /* */
- /* outline :: A pointer to the source outline descriptor. */
- /* */
- /* params :: A pointer to a FT_Raster_Params structure used to */
- /* describe the rendering operation. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <MT-Note> */
- /* YES. Rendering is synchronized, so that concurrent calls to the */
- /* scan-line converter will be serialized. */
- /* */
- /* <Note> */
- /* You should know what you are doing and how FT_Raster_Params works */
- /* to use this function. */
- /* */
- /* The field `params.source' will be set to `outline' before the scan */
- /* converter is called, which means that the value you give to it is */
- /* actually ignored. */
- /* */
- FT_EXPORT_DEF( FT_Error ) FT_Outline_Render( FT_Library library,
- FT_Outline* outline,
- FT_Raster_Params* params );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTOUTLN_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftrender.h */
-/* */
-/* FreeType renderer modules public interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTRENDER_H
-#define FTRENDER_H
-
-#include <freetype/ftmodule.h>
-#include <freetype/ftglyph.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /* create a new glyph object */
- typedef FT_Error (*FT_Glyph_Init_Func)( FT_Glyph glyph,
- FT_GlyphSlot slot );
-
- /* destroys a given glyph object */
- typedef void (*FT_Glyph_Done_Func)( FT_Glyph glyph );
-
- typedef void (*FT_Glyph_Transform_Func)( FT_Glyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta );
-
- typedef void (*FT_Glyph_BBox_Func)( FT_Glyph glyph,
- FT_BBox* abbox );
-
- typedef FT_Error (*FT_Glyph_Copy_Func)( FT_Glyph source,
- FT_Glyph target );
-
- typedef FT_Error (*FT_Glyph_Prepare_Func)( FT_Glyph glyph,
- FT_GlyphSlot slot );
-
- struct FT_Glyph_Class_
- {
- FT_UInt glyph_size;
- FT_Glyph_Format glyph_format;
- FT_Glyph_Init_Func glyph_init;
- FT_Glyph_Done_Func glyph_done;
- FT_Glyph_Copy_Func glyph_copy;
- FT_Glyph_Transform_Func glyph_transform;
- FT_Glyph_BBox_Func glyph_bbox;
- FT_Glyph_Prepare_Func glyph_prepare;
- };
-
-
- typedef FT_Error (*FTRenderer_render)( FT_Renderer renderer,
- FT_GlyphSlot slot,
- FT_UInt mode,
- FT_Vector* origin );
-
- typedef FT_Error (*FTRenderer_transform)( FT_Renderer renderer,
- FT_GlyphSlot slot,
- FT_Matrix* matrix,
- FT_Vector* delta );
-
- typedef void (*FTRenderer_getCBox)( FT_Renderer renderer,
- FT_GlyphSlot slot,
- FT_BBox* cbox );
-
- typedef FT_Error (*FTRenderer_setMode)( FT_Renderer renderer,
- FT_ULong mode_tag,
- FT_Pointer mode_ptr );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Renderer_Class */
- /* */
- /* <Description> */
- /* The renderer module class descriptor. */
- /* */
- /* <Fields> */
- /* root :: The root FT_Module_Class fields. */
- /* */
- /* glyph_format :: The glyph image format this renderer handles. */
- /* */
- /* render_glyph :: A method used to render the image that is in a */
- /* given glyph slot into a bitmap. */
- /* */
- /* set_mode :: A method used to pass additional parameters. */
- /* */
- /* raster_class :: For `ft_glyph_format_outline' renderers only, this */
- /* is a pointer to its raster's class. */
- /* */
- /* raster :: For `ft_glyph_format_outline' renderers only. this */
- /* is a pointer to the corresponding raster object, */
- /* if any. */
- /* */
- typedef struct FT_Renderer_Class_
- {
- FT_Module_Class root;
-
- FT_Glyph_Format glyph_format;
-
- FTRenderer_render render_glyph;
- FTRenderer_transform transform_glyph;
- FTRenderer_getCBox get_glyph_cbox;
- FTRenderer_setMode set_mode;
-
- FT_Raster_Funcs* raster_class;
-
- } FT_Renderer_Class;
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Renderer */
- /* */
- /* <Description> */
- /* Retrieves the current renderer for a given glyph format. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* format :: The glyph format. */
- /* */
- /* <Return> */
- /* A renderer handle. 0 if none found. */
- /* */
- /* <Note> */
- /* An error will be returned if a module already exists by that name, */
- /* or if the module requires a version of FreeType that is too great. */
- /* */
- /* To add a new renderer, simply use FT_Add_Module(). To retrieve a */
- /* renderer by its name, use FT_Get_Module(). */
- /* */
- FT_EXPORT_DEF( FT_Renderer ) FT_Get_Renderer( FT_Library library,
- FT_Glyph_Format format );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Set_Renderer */
- /* */
- /* <Description> */
- /* Sets the current renderer to use, and set additional mode. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* renderer :: A handle to the renderer object. */
- /* */
- /* num_params :: The number of additional parameters. */
- /* */
- /* parameters :: Additional parameters. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* In case of success, the renderer will be used to convert glyph */
- /* images in the renderer's known format into bitmaps. */
- /* */
- /* This doesn't change the current renderer for other formats. */
- /* */
- FT_EXPORT_DEF(FT_Error) FT_Set_Renderer( FT_Library library,
- FT_Renderer renderer,
- FT_UInt num_params,
- FT_Parameter* parameters );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTRENDER_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftsystem.h */
-/* */
-/* FreeType low-level system interface definition (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTSYSTEM_H
-#define FTSYSTEM_H
-
-
- /*************************************************************************/
- /* */
- /* M E M O R Y M A N A G E M E N T */
- /* */
- /*************************************************************************/
-
-
- typedef struct FT_MemoryRec_* FT_Memory;
-
-
- typedef void* (*FT_Alloc_Func)( FT_Memory memory,
- long size );
-
- typedef void (*FT_Free_Func)( FT_Memory memory,
- void* block );
-
- typedef void* (*FT_Realloc_Func)( FT_Memory memory,
- long cur_size,
- long new_size,
- void* block );
-
-
- struct FT_MemoryRec_
- {
- void* user;
- FT_Alloc_Func alloc;
- FT_Free_Func free;
- FT_Realloc_Func realloc;
- };
-
-
- /*************************************************************************/
- /* */
- /* I / O M A N A G E M E N T */
- /* */
- /*************************************************************************/
-
-
- typedef union FT_StreamDesc_
- {
- long value;
- void* pointer;
-
- } FT_StreamDesc;
-
-
- typedef struct FT_StreamRec_* FT_Stream;
-
-
- typedef unsigned long (*FT_Stream_IO)( FT_Stream stream,
- unsigned long offset,
- unsigned char* buffer,
- unsigned long count );
-
- typedef void (*FT_Stream_Close)( FT_Stream stream );
-
-
- struct FT_StreamRec_
- {
- unsigned char* base;
- unsigned long size;
- unsigned long pos;
-
- FT_StreamDesc descriptor;
- FT_StreamDesc pathname; /* ignored by FreeType -- */
- /* useful for debugging */
- FT_Stream_IO read;
- FT_Stream_Close close;
-
- FT_Memory memory;
- unsigned char* cursor;
- unsigned char* limit;
- };
-
-
-#endif /* FTSYSTEM_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* fttypes.h */
-/* */
-/* FreeType simple types definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTTYPES_H
-#define FTTYPES_H
-
-
-#include <freetype/ftsystem.h>
-#include <freetype/ftimage.h>
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Bool */
- /* */
- /* <Description> */
- /* A typedef of unsigned char, used for simple booleans. */
- /* */
- typedef unsigned char FT_Bool;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_FWord */
- /* */
- /* <Description> */
- /* A signed 16-bit integer used to store a distance in original font */
- /* units. */
- /* */
- typedef signed short FT_FWord; /* distance in FUnits */
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_UFWord */
- /* */
- /* <Description> */
- /* An unsigned 16-bit integer used to store a distance in original */
- /* font units. */
- /* */
- typedef unsigned short FT_UFWord; /* unsigned distance */
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Char */
- /* */
- /* <Description> */
- /* A simple typedef for the _signed_ char type. */
- /* */
- typedef signed char FT_Char;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Byte */
- /* */
- /* <Description> */
- /* A simple typedef for the _unsigned_ char type. */
- /* */
- typedef unsigned char FT_Byte;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_String */
- /* */
- /* <Description> */
- /* A simple typedef for the char type, usually used for strings. */
- /* */
- typedef char FT_String;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Short */
- /* */
- /* <Description> */
- /* A typedef for signed short. */
- /* */
- typedef signed short FT_Short;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_UShort */
- /* */
- /* <Description> */
- /* A typedef for unsigned short. */
- /* */
- typedef unsigned short FT_UShort;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Int */
- /* */
- /* <Description> */
- /* A typedef for the int type. */
- /* */
- typedef int FT_Int;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_UInt */
- /* */
- /* <Description> */
- /* A typedef for the unsigned int type. */
- /* */
- typedef unsigned int FT_UInt;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Long */
- /* */
- /* <Description> */
- /* A typedef for signed long. */
- /* */
- typedef signed long FT_Long;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_ULong */
- /* */
- /* <Description> */
- /* A typedef for unsigned long. */
- /* */
- typedef unsigned long FT_ULong;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_F2Dot14 */
- /* */
- /* <Description> */
- /* A signed 2.14 fixed float type used for unit vectors. */
- /* */
- typedef signed short FT_F2Dot14;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_F26Dot6 */
- /* */
- /* <Description> */
- /* A signed 26.6 fixed float type used for vectorial pixel */
- /* coordinates. */
- /* */
- typedef signed long FT_F26Dot6;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Fixed */
- /* */
- /* <Description> */
- /* This type is used to store 16.16 fixed float values, like scales */
- /* or matrix coefficients. */
- /* */
- typedef signed long FT_Fixed;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Error */
- /* */
- /* <Description> */
- /* The FreeType error code type. A value of 0 is always interpreted */
- /* as a successful operation. */
- /* */
- typedef int FT_Error;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_Pointer */
- /* */
- /* <Description> */
- /* A simple typedef for a typeless pointer. */
- /* */
- typedef void* FT_Pointer;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_UnitVector */
- /* */
- /* <Description> */
- /* A simple structure used to store a 2D vector unit vector. Uses */
- /* FT_F2Dot14 types. */
- /* */
- /* <Fields> */
- /* x :: Horizontal coordinate. */
- /* */
- /* y :: Vertical coordinate. */
- /* */
- typedef struct FT_UnitVector_
- {
- FT_F2Dot14 x;
- FT_F2Dot14 y;
-
- } FT_UnitVector;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Matrix */
- /* */
- /* <Description> */
- /* A simple structure used to store a 2x2 matrix. Coefficients are */
- /* in 16.16 fixed float format. The computation performed is: */
- /* */
- /* { */
- /* x' = x*xx + y*xy */
- /* y' = x*yx + y*yy */
- /* } */
- /* */
- /* <Fields> */
- /* xx :: Matrix coefficient. */
- /* */
- /* xy :: Matrix coefficient. */
- /* */
- /* yx :: Matrix coefficient. */
- /* */
- /* yy :: Matrix coefficient. */
- /* */
- typedef struct FT_Matrix_
- {
- FT_Fixed xx, xy;
- FT_Fixed yx, yy;
-
- } FT_Matrix;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_BBox */
- /* */
- /* <Description> */
- /* A structure used to hold an outline's bounding box, i.e., the */
- /* coordinates of its extrema in the horizontal and vertical */
- /* directions. */
- /* */
- /* <Fields> */
- /* xMin :: The horizontal minimum (left-most). */
- /* */
- /* yMin :: The vertical minimum (bottom-most). */
- /* */
- /* xMax :: The horizontal maximum (right-most). */
- /* */
- /* yMax :: The vertical maximum (top-most). */
- /* */
- typedef struct FT_BBox_
- {
- FT_Pos xMin, yMin;
- FT_Pos xMax, yMax;
-
- } FT_BBox;
-
-
- /*************************************************************************/
- /* */
- /* <Macro> */
- /* FT_MAKE_TAG */
- /* */
- /* <Description> */
- /* This macro converts four letter tags which are used to label */
- /* TrueType tables into an unsigned long to be used within FreeType. */
- /* */
-#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
- ( ( (FT_ULong)_x1 << 24 ) | \
- ( (FT_ULong)_x2 << 16 ) | \
- ( (FT_ULong)_x3 << 8 ) | \
- (FT_ULong)_x4 )
-
-
- /*************************************************************************/
- /*************************************************************************/
- /* */
- /* L I S T M A N A G E M E N T */
- /* */
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_ListNode */
- /* */
- /* <Description> */
- /* Many elements and objects in FreeType are listed through a */
- /* FT_List record (see FT_ListRec). As its name suggests, a */
- /* FT_ListNode is a handle to a single list element. */
- /* */
- typedef struct FT_ListNodeRec_* FT_ListNode;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* FT_List */
- /* */
- /* <Description> */
- /* A handle to a list record (see FT_ListRec). */
- /* */
- typedef struct FT_ListRec_* FT_List;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_ListNodeRec */
- /* */
- /* <Description> */
- /* A structure used to hold a single list element. */
- /* */
- /* <Fields> */
- /* prev :: The previous element in the list. NULL if first. */
- /* */
- /* next :: The next element in the list. NULL if last. */
- /* */
- /* data :: A typeless pointer to the listed object. */
- /* */
- typedef struct FT_ListNodeRec_
- {
- FT_ListNode prev;
- FT_ListNode next;
- void* data;
-
- } FT_ListNodeRec;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_ListRec */
- /* */
- /* <Description> */
- /* A structure used to hold a simple doubly-linked list. These are */
- /* used in many parts of FreeType. */
- /* */
- /* <Fields> */
- /* head :: The head (first element) of doubly-linked list. */
- /* */
- /* tail :: The tail (last element) of doubly-linked list. */
- /* */
- typedef struct FT_ListRec_
- {
- FT_ListNode head;
- FT_ListNode tail;
-
- } FT_ListRec;
-
-
-#define FT_IS_EMPTY( list ) ( (list).head == 0 )
-
-
-#endif /* FTTYPES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* autohint.h */
-/* */
-/* High-level `autohint' module-specific interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* The auto-hinter is used to load and automatically hint glyphs if a */
- /* format-specific hinter isn't available. */
- /* */
- /*************************************************************************/
-
-
-#ifndef AUTOHINT_H
-#define AUTOHINT_H
-
-
- /*************************************************************************/
- /* */
- /* A small technical note regarding automatic hinting in order to */
- /* clarify this module interface. */
- /* */
- /* An automatic hinter might compute two kinds of data for a given face: */
- /* */
- /* - global hints: Usually some metrics that describe global properties */
- /* of the face. It is computed by scanning more or less */
- /* agressively the glyphs in the face, and thus can be */
- /* very slow to compute (even if the size of global */
- /* hints is really small). */
- /* */
- /* - glyph hints: These describe some important features of the glyph */
- /* outline, as well as how to align them. They are */
- /* generally much faster to compute than global hints. */
- /* */
- /* The current FreeType auto-hinter does a pretty good job while */
- /* performing fast computations for both global and glyph hints. */
- /* However, we might be interested in introducing more complex and */
- /* powerful algorithms in the future, like the one described in the John */
- /* D. Hobby paper, which unfortunately requires a lot more horsepower. */
- /* */
- /* Because a sufficiently sophisticated font management system would */
- /* typically implement an LRU cache of opened face objects to reduce */
- /* memory usage, it is a good idea to be able to avoid recomputing */
- /* global hints every time the same face is re-opened. */
- /* */
- /* We thus provide the ability to cache global hints outside of the face */
- /* object, in order to speed up font re-opening time. Of course, this */
- /* feature is purely optional, so most client programs won't even notice */
- /* it. */
- /* */
- /* I initially thought that it would be a good idea to cache the glyph */
- /* hints too. However, my general idea now is that if you really need */
- /* to cache these too, you are simply in need of a new font format, */
- /* where all this information could be stored within the font file and */
- /* decoded on the fly. */
- /* */
- /*************************************************************************/
-
-
-#include <freetype/freetype.h>
-
-
- typedef struct FT_AutoHinterRec_ *FT_AutoHinter;
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_AutoHinter_Get_Global_Func */
- /* */
- /* <Description> */
- /* Retrieves the global hints computed for a given face object the */
- /* resulting data is dissociated from the face and will survive a */
- /* call to FT_Done_Face(). It must be discarded through the API */
- /* FT_AutoHinter_Done_Global_Func(). */
- /* */
- /* <Input> */
- /* hinter :: A handle to the source auto-hinter. */
- /* */
- /* face :: A handle to the source face object. */
- /* */
- /* <Output> */
- /* global_hints :: A typeless pointer to the global hints. */
- /* */
- /* global_len :: The size in bytes of the global hints. */
- /* */
- typedef void (*FT_AutoHinter_Get_Global_Func)(
- FT_AutoHinter hinter,
- FT_Face face,
- void** global_hints,
- long* global_len );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_AutoHinter_Done_Global_Func */
- /* */
- /* <Description> */
- /* Discards the global hints retrieved through */
- /* FT_AutoHinter_Get_Global_Func(). This is the only way these hints */
- /* are freed from memory. */
- /* */
- /* <Input> */
- /* hinter :: A handle to the auto-hinter module. */
- /* */
- /* global :: A pointer to retrieved global hints to discard. */
- /* */
- typedef void (*FT_AutoHinter_Done_Global_Func)( FT_AutoHinter hinter,
- void* global );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_AutoHinter_Reset_Func */
- /* */
- /* <Description> */
- /* This function is used to recompute the global metrics in a given */
- /* font. This is useful when global font data changes (e.g. Multiple */
- /* Masters fonts where blend coordinates change). */
- /* */
- /* <Input> */
- /* hinter :: A handle to the source auto-hinter. */
- /* */
- /* face :: A handle to the face. */
- /* */
- typedef void (*FT_AutoHinter_Reset_Func)( FT_AutoHinter hinter,
- FT_Face face );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_AutoHinter_Load_Func */
- /* */
- /* <Description> */
- /* This function is used to load, scale, and automatically hint a */
- /* glyph from a given face. */
- /* */
- /* <Input> */
- /* face :: A handle to the face. */
- /* glyph_index :: The glyph index. */
- /* load_flags :: The load flags. */
- /* */
- /* <Note> */
- /* This function is capable of loading composite glyphs by hinting */
- /* each sub-glyph independently (which improves quality). */
- /* */
- /* It will call the font driver with FT_Load_Glyph(), with */
- /* FT_LOAD_NO_SCALE set. */
- /* */
- typedef FT_Error (*FT_AutoHinter_Load_Func)( FT_AutoHinter hinter,
- FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_ULong load_flags );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_AutoHinter_Interface */
- /* */
- /* <Description> */
- /* The auto-hinter module's interface. */
- /* */
- typedef struct FT_AutoHinter_Interface
- {
- FT_AutoHinter_Reset_Func reset_face;
- FT_AutoHinter_Load_Func load_glyph;
-
- FT_AutoHinter_Get_Global_Func get_global_hints;
- FT_AutoHinter_Done_Global_Func done_global_hints;
-
- } FT_AutoHinter_Interface;
-
-
-#endif /* AUTOHINT_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftcalc.h */
-/* */
-/* Arithmetic computations (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTCALC_H
-#define FTCALC_H
-
-#include <freetype/freetype.h>
-#include <freetype/config/ftconfig.h> /* for LONG64 */
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
-#ifdef LONG64
-
-
- typedef INT64 FT_Int64;
-
-#define ADD_64( x, y, z ) z = (x) + (y)
-#define MUL_64( x, y, z ) z = (FT_Int64)(x) * (y)
-
-#define DIV_64( x, y ) ( (x) / (y) )
-
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
-#define SQRT_64( z ) FT_Sqrt64( z )
-
- FT_EXPORT_DEF( FT_Int32 ) FT_Sqrt64( FT_Int64 l );
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-
-#else /* LONG64 */
-
-
- typedef struct FT_Int64_
- {
- FT_UInt32 lo;
- FT_UInt32 hi;
-
- } FT_Int64;
-
-
-#define ADD_64( x, y, z ) FT_Add64( &x, &y, &z )
-#define MUL_64( x, y, z ) FT_MulTo64( x, y, &z )
-#define DIV_64( x, y ) FT_Div64by32( &x, y )
-
-
- FT_EXPORT_DEF( void ) FT_Add64( FT_Int64* x,
- FT_Int64* y,
- FT_Int64* z );
-
- FT_EXPORT_DEF( void ) FT_MulTo64( FT_Int32 x,
- FT_Int32 y,
- FT_Int64* z );
-
- FT_EXPORT_DEF( FT_Int32 ) FT_Div64by32( FT_Int64* x,
- FT_Int32 y );
-
-
-#ifdef FT_CONFIG_OPTION_OLD_CALCS
-
-#define SQRT_64( z ) FT_Sqrt64( &z )
-
- FT_EXPORT_DEF( FT_Int32 ) FT_Sqrt64( FT_Int64* x );
-
-#endif /* FT_CONFIG_OPTION_OLD_CALCS */
-
-
-#endif /* LONG64 */
-
-
-#ifndef FT_CONFIG_OPTION_OLD_CALCS
-
-#define SQRT_32( x ) FT_Sqrt32( x )
-
- BASE_DEF( FT_Int32 ) FT_Sqrt32( FT_Int32 x );
-
-#endif /* !FT_CONFIG_OPTION_OLD_CALCS */
-
-
- /*************************************************************************/
- /* */
- /* FT_MulDiv() and FT_MulFix() are declared in freetype.h. */
- /* */
- /*************************************************************************/
-
-
-#define INT_TO_F26DOT6( x ) ( (FT_Long)(x) << 6 )
-#define INT_TO_F2DOT14( x ) ( (FT_Long)(x) << 14 )
-#define INT_TO_FIXED( x ) ( (FT_Long)(x) << 16 )
-#define F2DOT14_TO_FIXED( x ) ( (FT_Long)(x) << 2 )
-#define FLOAT_TO_FIXED( x ) ( (FT_Long)( x * 65536.0 ) )
-
-#define ROUND_F26DOT6( x ) ( x >= 0 ? ( ( (x) + 32 ) & -64 ) \
- : ( -( ( 32 - (x) ) & -64 ) ) )
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* FTCALC_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftdebug.h */
-/* */
-/* Debugging and logging component (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTDEBUG_H
-#define FTDEBUG_H
-
-#include <freetype/config/ftconfig.h> /* for FT_DEBUG_LEVEL_TRACE, */
- /* FT_DEBUG_LEVEL_ERROR */
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /* A very stupid pre-processor trick. See K&R version 2 */
- /* section A12.3 for details... */
- /* */
- /* It is also described in the section `Separate */
- /* Expansion of Macro Arguments' in the info file */
- /* `cpp.info', describing GNU cpp. */
- /* */
-#define FT_CAT( x, y ) x ## y
-#define FT_XCAT( x, y ) FT_CAT( x, y )
-
-
-#ifdef FT_DEBUG_LEVEL_TRACE
-
-
- /* note that not all levels are used currently */
-
- typedef enum FT_Trace_
- {
- /* the first level must always be `trace_any' */
- trace_any = 0,
-
- /* base components */
- trace_aaraster, /* anti-aliasing raster (ftgrays.c) */
- trace_calc, /* calculations (ftcalc.c) */
- trace_extend, /* extension manager (ftextend.c) */
- trace_glyph, /* glyph manager (ftglyph.c) */
- trace_io, /* i/o monitoring (ftsystem.c) */
- trace_init, /* initialization (ftinit.c) */
- trace_list, /* list manager (ftlist.c) */
- trace_memory, /* memory manager (ftobjs.c) */
- trace_mm, /* MM interface (ftmm.c) */
- trace_objs, /* base objects (ftobjs.c) */
- trace_outline, /* outline management (ftoutln.c) */
- trace_raster, /* rasterizer (ftraster.c) */
- trace_stream, /* stream manager (ftstream.c) */
-
- /* SFNT driver components */
- trace_sfobjs, /* SFNT object handler (sfobjs.c) */
- trace_ttcmap, /* charmap handler (ttcmap.c) */
- trace_ttload, /* basic TrueType tables (ttload.c) */
- trace_ttpost, /* PS table processing (ttpost.c) */
- trace_ttsbit, /* TrueType sbit handling (ttsbit.c) */
-
- /* TrueType driver components */
- trace_ttdriver, /* TT font driver (ttdriver.c) */
- trace_ttgload, /* TT glyph loader (ttgload.c) */
- trace_ttinterp, /* bytecode interpreter (ttinterp.c) */
- trace_ttobjs, /* TT objects manager (ttobjs.c) */
- trace_ttpload, /* TT data/program loader (ttpload.c) */
-
- /* Type 1 driver components */
- trace_t1driver,
- trace_t1gload,
- trace_t1hint,
- trace_t1load,
- trace_t1objs,
-
- /* experimental Type 1 driver components */
- trace_z1driver,
- trace_z1gload,
- trace_z1hint,
- trace_z1load,
- trace_z1objs,
- trace_z1parse,
-
- /* Type 2 driver components */
- trace_t2driver,
- trace_t2gload,
- trace_t2load,
- trace_t2objs,
- trace_t2parse,
-
- /* CID driver components */
- trace_cidafm,
- trace_ciddriver,
- trace_cidgload,
- trace_cidload,
- trace_cidobjs,
- trace_cidparse,
-
- /* Windows fonts component */
- trace_winfnt,
-
- /* the last level must always be `trace_max' */
- trace_max
-
- } FT_Trace;
-
-
- /* declared in ftdebug.c */
- extern char ft_trace_levels[trace_max];
-
-
- /*************************************************************************/
- /* */
- /* IMPORTANT! */
- /* */
- /* Each component must define the macro FT_COMPONENT to a valid FT_Trace */
- /* value before using any TRACE macro. */
- /* */
- /*************************************************************************/
-
-
-#define FT_TRACE( level, varformat ) \
- do \
- { \
- if ( ft_trace_levels[FT_COMPONENT] >= level ) \
- FT_XCAT( FT_Message, varformat ); \
- } while ( 0 )
-
-
- FT_EXPORT_DEF( void ) FT_SetTraceLevel( FT_Trace component,
- char level );
-
-
-#elif defined( FT_DEBUG_LEVEL_ERROR )
-
-
-#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
-
-
-#else /* release mode */
-
-
-#define FT_Assert( condition ) do ; while ( 0 ) /* nothing */
-
-#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
-#define FT_ERROR( varformat ) do ; while ( 0 ) /* nothing */
-
-
-#endif /* FT_DEBUG_LEVEL_TRACE, FT_DEBUG_LEVEL_ERROR */
-
-
- /*************************************************************************/
- /* */
- /* Define macros and functions that are common to the debug and trace */
- /* modes. */
- /* */
- /* You need vprintf() to be able to compile ftdebug.c. */
- /* */
- /*************************************************************************/
-
-
-#if defined( FT_DEBUG_LEVEL_TRACE ) || defined( FT_DEBUG_LEVEL_ERROR )
-
-
-#include "stdio.h" /* for vprintf() */
-
-
-#define FT_Assert( condition ) \
- do \
- { \
- if ( !( condition ) ) \
- FT_Panic( "assertion failed on line %d of file %s\n", \
- __LINE__, __FILE__ ); \
- } while ( 0 )
-
- /* print a message */
- FT_EXPORT_DEF( void ) FT_Message( const char* fmt, ... );
-
- /* print a message and exit */
- FT_EXPORT_DEF( void ) FT_Panic( const char* fmt, ... );
-
-#define FT_ERROR( varformat ) FT_XCAT( FT_Message, varformat )
-
-
-#endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */
-
-
- /*************************************************************************/
- /* */
- /* You need two opening resp. closing parentheses! */
- /* */
- /* Example: FT_TRACE0(( "Value is %i", foo )) */
- /* */
- /*************************************************************************/
-
-#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat )
-#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat )
-#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat )
-#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat )
-#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat )
-#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat )
-#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat )
-#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat )
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTDEBUG_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftdriver.h */
-/* */
-/* FreeType font driver interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTDRIVER_H
-#define FTDRIVER_H
-
-
-#include <freetype/ftmodule.h>
-#include <freetype/config/ftconfig.h>
-
-
- typedef FT_Error (*FTDriver_initFace)( FT_Stream stream,
- FT_Face face,
- FT_Int typeface_index,
- FT_Int num_params,
- FT_Parameter* parameters );
-
- typedef void (*FTDriver_doneFace)( FT_Face face );
-
-
- typedef FT_Error (*FTDriver_initSize)( FT_Size size );
-
- typedef void (*FTDriver_doneSize)( FT_Size size );
-
-
- typedef FT_Error (*FTDriver_initGlyphSlot)( FT_GlyphSlot slot );
-
- typedef void (*FTDriver_doneGlyphSlot)( FT_GlyphSlot slot );
-
-
- typedef FT_Error (*FTDriver_setCharSizes)( FT_Size size,
- FT_F26Dot6 char_width,
- FT_F26Dot6 char_height,
- FT_UInt horz_resolution,
- FT_UInt vert_resolution );
-
- typedef FT_Error (*FTDriver_setPixelSizes)( FT_Size size,
- FT_UInt pixel_width,
- FT_UInt pixel_height );
-
- typedef FT_Error (*FTDriver_loadGlyph)( FT_GlyphSlot slot,
- FT_Size size,
- FT_UInt glyph_index,
- FT_Int load_flags );
-
-
- typedef FT_UInt (*FTDriver_getCharIndex)( FT_CharMap charmap,
- FT_Long charcode );
-
- typedef FT_Error (*FTDriver_getKerning)( FT_Face face,
- FT_UInt left_glyph,
- FT_UInt right_glyph,
- FT_Vector* kerning );
-
-
- typedef FT_Error (*FTDriver_attachFile)( FT_Face face,
- FT_Stream stream );
-
-
- typedef FT_Error (*FTDriver_getAdvances)( FT_Face face,
- FT_UInt first,
- FT_UInt count,
- FT_Bool vertical,
- FT_UShort* advances );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Driver_Class */
- /* */
- /* <Description> */
- /* The font driver class. This structure mostly contains pointers to */
- /* driver methods. */
- /* */
- /* <Fields> */
- /* root :: The parent module. */
- /* */
- /* face_object_size :: The size of a face object in bytes. */
- /* */
- /* size_object_size :: The size of a size object in bytes. */
- /* */
- /* slot_object_size :: The size of a glyph object in bytes. */
- /* */
- /* init_face :: The format-specific face constructor. */
- /* */
- /* done_face :: The format-specific face destructor. */
- /* */
- /* init_size :: The format-specific size constructor. */
- /* */
- /* done_size :: The format-specific size destructor. */
- /* */
- /* init_slot :: The format-specific slot constructor. */
- /* */
- /* done_slot :: The format-specific slot destructor. */
- /* */
- /* set_char_sizes :: A handle to a function used to set the new */
- /* character size in points + resolution. Can be */
- /* set to 0 to indicate default behaviour. */
- /* */
- /* set_pixel_sizes :: A handle to a function used to set the new */
- /* character size in pixels. Can be set to 0 to */
- /* indicate default behaviour. */
- /* */
- /* load_glyph :: A function handle to load a given glyph image */
- /* in a slot. This field is mandatory! */
- /* */
- /* get_char_index :: A function handle to return the glyph index of */
- /* a given character for a given charmap. This */
- /* field is mandatory! */
- /* */
- /* get_kerning :: A function handle to return the unscaled */
- /* kerning for a given pair of glyphs. Can be */
- /* set to 0 if the format doesn't support */
- /* kerning. */
- /* */
- /* attach_file :: This function handle is used to read */
- /* additional data for a face from another */
- /* file/stream. For example, this can be used to */
- /* add data from AFM or PFM files on a Type 1 */
- /* face, or a CIDMap on a CID-keyed face. */
- /* */
- /* get_advances :: A function handle used to return the advances */
- /* of 'count' glyphs, starting at `index'. the */
- /* `vertical' flags must be set when vertical */
- /* advances are queried. The advances buffer is */
- /* caller-allocated. */
- /* */
- /* <Note> */
- /* Most function pointers, with the exception of `load_glyph' and */
- /* `get_char_index' can be set to 0 to indicate a default behaviour. */
- /* */
- typedef struct FT_Driver_Class_
- {
- FT_Module_Class root;
-
- FT_Int face_object_size;
- FT_Int size_object_size;
- FT_Int slot_object_size;
-
- FTDriver_initFace init_face;
- FTDriver_doneFace done_face;
-
- FTDriver_initSize init_size;
- FTDriver_doneSize done_size;
-
- FTDriver_initGlyphSlot init_slot;
- FTDriver_doneGlyphSlot done_slot;
-
- FTDriver_setCharSizes set_char_sizes;
- FTDriver_setPixelSizes set_pixel_sizes;
-
- FTDriver_loadGlyph load_glyph;
- FTDriver_getCharIndex get_char_index;
-
- FTDriver_getKerning get_kerning;
- FTDriver_attachFile attach_file;
-
- FTDriver_getAdvances get_advances;
-
- } FT_Driver_Class;
-
-
-#endif /* FTDRIVER_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftextend.h */
-/* */
-/* FreeType extensions implementation (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTEXTEND_H
-#define FTEXTEND_H
-
-
-#include <freetype/internal/ftobjs.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* The extensions don't need to be integrated at compile time into the */
- /* engine, only at link time. */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Extension_Initializer */
- /* */
- /* <Description> */
- /* Each new face object can have several extensions associated with */
- /* it at creation time. This function is used to initialize given */
- /* extension data for a given face. */
- /* */
- /* <InOut> */
- /* ext :: A typeless pointer to the extension data. */
- /* */
- /* face :: A handle to the source face object the extension is */
- /* associated with. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* In case of error, the initializer should not destroy the extension */
- /* data, as the finalizer will get called later by the function's */
- /* caller. */
- /* */
- typedef FT_Error (*FT_Extension_Initializer)( void* ext,
- FT_Face face );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_Extension_Finalizer */
- /* */
- /* <Description> */
- /* Each new face object can have several extensions associated with */
- /* it at creation time. This function is used to finalize given */
- /* extension data for a given face; it occurs before the face object */
- /* itself is finalized. */
- /* */
- /* <InOut> */
- /* ext :: A typeless pointer to the extension data. */
- /* */
- /* face :: A handle to the source face object the extension is */
- /* associated with. */
- /* */
- typedef void (*FT_Extension_Finalizer)( void* ext,
- FT_Face face );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_Extension_Class */
- /* */
- /* <Description> */
- /* A simple structure used to describe a given extension to the */
- /* FreeType base layer. An FT_Extension_Class is used as a parameter */
- /* for FT_Register_Extension(). */
- /* */
- /* <Fields> */
- /* id :: The extension's ID. This is a normal C string that */
- /* is used to uniquely reference the extension's */
- /* interface. */
- /* */
- /* size :: The size in bytes of the extension data that must be */
- /* associated with each face object. */
- /* */
- /* init :: A pointer to the extension data's initializer. */
- /* */
- /* finalize :: A pointer to the extension data's finalizer. */
- /* */
- /* interface :: This pointer can be anything, but should usually */
- /* point to a table of function pointers which implement */
- /* the extension's interface. */
- /* */
- /* offset :: This field is set and used within the base layer and */
- /* should be set to 0 when registering an extension */
- /* through FT_Register_Extension(). It contains an */
- /* offset within the face's extension block for the */
- /* current extension's data. */
- /* */
- typedef struct FT_Extension_Class_
- {
- const char* id;
- FT_ULong size;
- FT_Extension_Initializer init;
- FT_Extension_Finalizer finalize;
- void* interface;
-
- FT_ULong offset;
-
- } FT_Extension_Class;
-
-
- FT_EXPORT_DEF( FT_Error ) FT_Register_Extension(
- FT_Driver driver,
- FT_Extension_Class* clazz );
-
-
-#ifdef FT_CONFIG_OPTION_EXTEND_ENGINE
-
-
- /* Initialize the extension component */
- LOCAL_DEF
- FT_Error FT_Init_Extensions( FT_Library library );
-
- /* Finalize the extension component */
- LOCAL_DEF
- FT_Error FT_Done_Extensions( FT_Library library );
-
- /* Create an extension within a face object. Called by the */
- /* face object constructor. */
- LOCAL_DEF
- FT_Error FT_Create_Extensions( FT_Face face );
-
- /* Destroy all extensions within a face object. Called by the */
- /* face object destructor. */
- LOCAL_DEF
- FT_Error FT_Destroy_Extensions( FT_Face face );
-
-
-#endif
-
-
- /* return an extension's data & interface according to its ID */
- FT_EXPORT_DEF( void* ) FT_Get_Extension(
- FT_Face face,
- const char* extension_id,
- void** extension_interface );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTEXTEND_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftlist.c */
-/* */
-/* Generic list support for FreeType (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This file implements functions relative to list processing. Its */
- /* data structures are defined in `freetype.h'. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTLIST_H
-#define FTLIST_H
-
-#include <freetype/freetype.h>
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- FT_EXPORT_DEF( FT_ListNode ) FT_List_Find( FT_List list,
- void* data );
-
- FT_EXPORT_DEF( void ) FT_List_Add( FT_List list,
- FT_ListNode node );
-
- FT_EXPORT_DEF( void ) FT_List_Insert( FT_List list,
- FT_ListNode node );
-
- FT_EXPORT_DEF( void ) FT_List_Remove( FT_List list,
- FT_ListNode node );
-
- FT_EXPORT_DEF( void ) FT_List_Up( FT_List list,
- FT_ListNode node );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_List_Iterator */
- /* */
- /* <Description> */
- /* An FT_List iterator function which is called during a list parse */
- /* by FT_List_Iterate(). */
- /* */
- /* <Input> */
- /* node :: The current iteration list node. */
- /* */
- /* user :: A typeless pointer passed to FT_List_Iterate(). */
- /* Can be used to point to the iteration's state. */
- /* */
- typedef FT_Error (*FT_List_Iterator)( FT_ListNode node,
- void* user );
-
-
- FT_EXPORT_DEF( FT_Error ) FT_List_Iterate( FT_List list,
- FT_List_Iterator iterator,
- void* user );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* FT_List_Destructor */
- /* */
- /* <Description> */
- /* An FT_List iterator function which is called during a list */
- /* finalization by FT_List_Finalize() to destroy all elements in a */
- /* given list. */
- /* */
- /* <Input> */
- /* system :: The current system object. */
- /* */
- /* data :: The current object to destroy. */
- /* */
- /* user :: A typeless pointer passed to FT_List_Iterate(). It can */
- /* be used to point to the iteration's state. */
- /* */
- typedef void (*FT_List_Destructor)( FT_Memory memory,
- void* data,
- void* user );
-
-
- FT_EXPORT_DEF( void ) FT_List_Finalize( FT_List list,
- FT_List_Destructor destroy,
- FT_Memory memory,
- void* user );
-
-
-#ifdef __cplusplus
- }
-#endif
-
-#endif /* FTLIST_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftmemory.h */
-/* */
-/* The FreeType memory management macros (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTMEMORY_H
-#define FTMEMORY_H
-
-
-#include <freetype/config/ftconfig.h>
-#include <freetype/fttypes.h>
-
-
- /*************************************************************************/
- /* */
- /* <Macro> */
- /* FT_SET_ERROR */
- /* */
- /* <Description> */
- /* This macro is used to set an implicit `error' variable to a given */
- /* expression's value (usually a function call), and convert it to a */
- /* boolean which is set whenever the value is != 0. */
- /* */
-#undef FT_SET_ERROR
-#define FT_SET_ERROR( expression ) \
- ( ( error = (expression) ) != 0 )
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** M E M O R Y ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- BASE_DEF( FT_Error ) FT_Alloc( FT_Memory memory,
- FT_Long size,
- void** P );
-
- BASE_DEF( FT_Error ) FT_Realloc( FT_Memory memory,
- FT_Long current,
- FT_Long size,
- void** P );
-
- BASE_DEF( void ) FT_Free( FT_Memory memory,
- void** P );
-
-
-
- /* This `#include' is needed by the MEM_xxx() macros; it should be */
- /* available on all platforms we know of. */
-#include <string.h>
-
-#define MEM_Set( dest, byte, count ) memset( dest, byte, count )
-
-#define MEM_Copy( dest, source, count ) memcpy( dest, source, count )
-
-#define MEM_Move( dest, source, count ) memmove( dest, source, count )
-
-
- /*************************************************************************/
- /* */
- /* We now support closures to produce completely reentrant code. This */
- /* means the allocation functions now takes an additional argument */
- /* (`memory'). It is a handle to a given memory object, responsible for */
- /* all low-level operations, including memory management and */
- /* synchronisation. */
- /* */
- /* In order to keep our code readable and use the same macros in the */
- /* font drivers and the rest of the library, MEM_Alloc(), ALLOC(), and */
- /* ALLOC_ARRAY() now use an implicit variable, `memory'. It must be */
- /* defined at all locations where a memory operation is queried. */
- /* */
-#define MEM_Alloc( _pointer_, _size_ ) \
- FT_Alloc( memory, _size_, (void**)&(_pointer_) )
-
-#define MEM_Alloc_Array( _pointer_, _count_, _type_ ) \
- FT_Alloc( memory, (_count_)*sizeof ( _type_ ), \
- (void**)&(_pointer_) )
-
-#define MEM_Realloc( _pointer_, _current_, _size_ ) \
- FT_Realloc( memory, _current_, _size_, (void**)&(_pointer_) )
-
-#define MEM_Realloc_Array( _pointer_, _current_, _new_, _type_ ) \
- FT_Realloc( memory, (_current_)*sizeof ( _type_ ), \
- (_new_)*sizeof ( _type_ ), (void**)&(_pointer_) )
-
-#define ALLOC( _pointer_, _size_ ) \
- FT_SET_ERROR( MEM_Alloc( _pointer_, _size_ ) )
-
-#define REALLOC( _pointer_, _current_, _size_ ) \
- FT_SET_ERROR( MEM_Realloc( _pointer_, _current_, _size_ ) )
-
-#define ALLOC_ARRAY( _pointer_, _count_, _type_ ) \
- FT_SET_ERROR( MEM_Alloc( _pointer_, \
- (_count_)*sizeof ( _type_ ) ) )
-
-#define REALLOC_ARRAY( _pointer_, _current_, _count_, _type_ ) \
- FT_SET_ERROR( MEM_Realloc( _pointer_, \
- (_current_)*sizeof ( _type_ ), \
- (_count_)*sizeof ( _type_ ) ) )
-
-#define FREE( _pointer_ ) FT_Free( memory, (void**)&(_pointer_) )
-
-
-#endif /* FTMEMORY_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftobjs.h */
-/* */
-/* The FreeType private base classes (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This file contains the definition of all internal FreeType classes. */
- /* */
- /*************************************************************************/
-
-
-#ifndef FTOBJS_H
-#define FTOBJS_H
-
-#include <freetype/internal/ftmemory.h>
-#include <freetype/ftrender.h>
-#include <freetype/internal/ftdriver.h>
-#include <freetype/internal/autohint.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* Some generic definitions. */
- /* */
-#ifndef TRUE
-#define TRUE 1
-#endif
-
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef NULL
-#define NULL (void*)0
-#endif
-
-#ifndef UNUSED
-#define UNUSED( arg ) ( (arg)=(arg) )
-#endif
-
-
- /*************************************************************************/
- /* */
- /* The min and max functions missing in C. As usual, be careful not to */
- /* write things like MIN( a++, b++ ) to avoid side effects. */
- /* */
-#ifndef MIN
-#define MIN( a, b ) ( (a) < (b) ? (a) : (b) )
-#endif
-
-#ifndef MAX
-#define MAX( a, b ) ( (a) > (b) ? (a) : (b) )
-#endif
-
-#ifndef ABS
-#define ABS( a ) ( (a) < 0 ? -(a) : (a) )
-#endif
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** M O D U L E S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_ModuleRec */
- /* */
- /* <Description> */
- /* A module object instance. */
- /* */
- /* <Fields> */
- /* clazz :: A pointer to the module's class. */
- /* */
- /* library :: A handle to the parent library object. */
- /* */
- /* memory :: A handle to the memory manager. */
- /* */
- /* generic :: A generic structure for user-level extensibility (?). */
- /* */
- typedef struct FT_ModuleRec_
- {
- FT_Module_Class* clazz;
- FT_Library library;
- FT_Memory memory;
- FT_Generic generic;
-
- } FT_ModuleRec;
-
-
- /* typecast an object to a FT_Module */
-#define FT_MODULE( x ) ((FT_Module)(x))
-#define FT_MODULE_CLASS( x ) FT_MODULE(x)->clazz
-#define FT_MODULE_LIBRARY( x ) FT_MODULE(x)->library
-#define FT_MODULE_MEMORY( x ) FT_MODULE(x)->memory
-
-#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
- ft_module_font_driver )
-
-#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
- ft_module_renderer )
-
-#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
- ft_module_hinter )
-
-#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
- ft_module_styler )
-
-#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS(x)->module_flags & \
- ft_module_driver_scalable )
-
-#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS(x)->module_flags & \
- ft_module_driver_no_outlines )
-
-#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS(x)->module_flags & \
- ft_module_driver_has_hinter )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Module_Interface */
- /* */
- /* <Description> */
- /* Finds a module and returns its specific interface as a typeless */
- /* pointer. */
- /* */
- /* <Input> */
- /* library :: A handle to the library object. */
- /* */
- /* module_name :: The module's name (as an ASCII string). */
- /* */
- /* <Return> */
- /* A module-specific interface if available, 0 otherwise. */
- /* */
- /* <Note> */
- /* You should better be familiar with FreeType internals to know */
- /* which module to look for, and what its interface is :-) */
- /* */
- BASE_DEF( const void* ) FT_Get_Module_Interface( FT_Library library,
- const char* mod_name );
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
- /* a few macros used to perform easy typecasts with minimal brain damage */
-
-#define FT_FACE( x ) ((FT_Face)(x))
-#define FT_SIZE( x ) ((FT_Size)(x))
-#define FT_SLOT( x ) ((FT_GlyphSlot)(x))
-
-#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
-#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
-#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
-
-#define FT_SIZE_FACE( x ) FT_SIZE( x )->face
-#define FT_SLOT_FACE( x ) FT_SLOT( x )->face
-
-#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
-#define FT_FACE_SIZE( x ) FT_FACE( x )->size
-
-
- /* this must be kept exported -- tt will be used later in our own */
- /* high-level caching font manager called SemTex (way after the */
- /* 2.0 release though */
- FT_EXPORT_DEF( FT_Error ) FT_New_Size( FT_Face face,
- FT_Size* size );
-
- FT_EXPORT_DEF( FT_Error ) FT_Done_Size( FT_Size size );
-
-
- FT_EXPORT_DEF( FT_Error ) FT_New_GlyphSlot( FT_Face face,
- FT_GlyphSlot* aslot );
-
- FT_EXPORT_DEF( void ) FT_Done_GlyphSlot( FT_GlyphSlot slot );
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** G L Y P H L O A D E R ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
-#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
-#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
-#define FT_SUBGLYPH_FLAG_SCALE 8
-#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
-#define FT_SUBGLYPH_FLAG_2X2 0x80
-#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
-
-
- enum
- {
- ft_glyph_own_bitmap = 1
- };
-
-
- struct FT_SubGlyph_
- {
- FT_Int index;
- FT_UShort flags;
- FT_Int arg1;
- FT_Int arg2;
- FT_Matrix transform;
- };
-
-
- typedef struct FT_GlyphLoad_
- {
- FT_Outline outline; /* outline */
- FT_UInt num_subglyphs; /* number of subglyphs */
- FT_SubGlyph* subglyphs; /* subglyphs */
- FT_Vector* extra_points; /* extra points table */
-
- } FT_GlyphLoad;
-
-
- struct FT_GlyphLoader_
- {
- FT_Memory memory;
- FT_UInt max_points;
- FT_UInt max_contours;
- FT_UInt max_subglyphs;
- FT_Bool use_extra;
-
- FT_GlyphLoad base;
- FT_GlyphLoad current;
-
- void* other; /* for possible future extension? */
-
- };
-
-
- BASE_DEF( FT_Error ) FT_GlyphLoader_New( FT_Memory memory,
- FT_GlyphLoader** aloader );
-
- BASE_DEF( FT_Error ) FT_GlyphLoader_Create_Extra(
- FT_GlyphLoader* loader );
-
- BASE_DEF( void ) FT_GlyphLoader_Done( FT_GlyphLoader* loader );
-
- BASE_DEF( void ) FT_GlyphLoader_Reset( FT_GlyphLoader* loader );
-
- BASE_DEF( void ) FT_GlyphLoader_Rewind( FT_GlyphLoader* loader );
-
- BASE_DEF( FT_Error ) FT_GlyphLoader_Check_Points(
- FT_GlyphLoader* loader,
- FT_UInt n_points,
- FT_UInt n_contours );
-
- BASE_DEF( FT_Error ) FT_GlyphLoader_Check_Subglyphs(
- FT_GlyphLoader* loader,
- FT_UInt n_subs );
-
- BASE_DEF( void ) FT_GlyphLoader_Prepare( FT_GlyphLoader* loader );
-
- BASE_DEF( void ) FT_GlyphLoader_Add( FT_GlyphLoader* loader );
-
- BASE_DEF( FT_Error ) FT_GlyphLoader_Copy_Points( FT_GlyphLoader* target,
- FT_GlyphLoader* source );
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** R E N D E R E R S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#define FT_RENDERER( x ) ((FT_Renderer)( x ))
-#define FT_GLYPH( x ) ((FT_Glyph)( x ))
-#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
-#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))
-
-
- typedef struct FT_RendererRec_
- {
- FT_ModuleRec root;
- FT_Renderer_Class* clazz;
- FT_Glyph_Format glyph_format;
- const FT_Glyph_Class glyph_class;
-
- FT_Raster raster;
- FT_Raster_Render_Func raster_render;
- FTRenderer_render render;
-
- } FT_RendererRec;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** F O N T D R I V E R S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* typecast a module into a driver easily */
-#define FT_DRIVER( x ) ((FT_Driver)(x))
-
- /* typecast a module as a driver, and get its driver class */
-#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_DriverRec */
- /* */
- /* <Description> */
- /* The root font driver class. A font driver is responsible for */
- /* managing and loading font files of a given format. */
- /* */
- /* <Fields> */
- /* root :: Contains the fields of the root module class. */
- /* */
- /* clazz :: A pointer to the font driver's class. Note that */
- /* this is NOT root.clazz. `class' wasn't used */
- /* as it is a reserved word in C++. */
- /* */
- /* faces_list :: The list of faces currently opened by this */
- /* driver. */
- /* */
- /* extensions :: A typeless pointer to the driver's extensions */
- /* registry, if they are supported through the */
- /* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */
- /* */
- /* glyph_loader :: The glyph loader for all faces managed by this */
- /* driver. This object isn't defined for unscalable */
- /* formats. */
- /* */
- typedef struct FT_DriverRec_
- {
- FT_ModuleRec root;
- FT_Driver_Class* clazz;
-
- FT_ListRec faces_list;
- void* extensions;
-
- FT_GlyphLoader* glyph_loader;
-
- } FT_DriverRec;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** ****/
- /**** L I B R A R I E S ****/
- /**** ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
-#define FT_DEBUG_HOOK_TRUETYPE 0
-#define FT_DEBUG_HOOK_TYPE1 1
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* FT_LibraryRec */
- /* */
- /* <Description> */
- /* The FreeType library class. This is the root of all FreeType */
- /* data. Use FT_New_Library() to create a library object, and */
- /* FT_Done_Library() to discard it and all child objects. */
- /* */
- /* <Fields> */
- /* memory :: The library's memory object. Manages memory */
- /* allocation. */
- /* */
- /* generic :: Client data variable. Used to extend the */
- /* Library class by higher levels and clients. */
- /* */
- /* num_modules :: The number of modules currently registered */
- /* within this library. This is set to 0 for new */
- /* libraries. New modules are added through the */
- /* FT_Add_Module() API function. */
- /* */
- /* modules :: A table used to store handles to the currently */
- /* registered modules. Note that each font driver */
- /* contains a list of its opened faces. */
- /* */
- /* renderers :: The list of renderers currently registered */
- /* within the library. */
- /* */
- /* cur_renderer :: The current outline renderer. This is a */
- /* shortcut used to avoid parsing the list on */
- /* each call to FT_Outline_Render(). It is a */
- /* handle to the current renderer for the */
- /* ft_glyph_format_outline format. */
- /* */
- /* auto_hinter :: XXX */
- /* */
- /* raster_pool :: The raster object's render pool. This can */
- /* ideally be changed dynamically at run-time. */
- /* */
- /* raster_pool_size :: The size of the render pool in bytes. */
- /* */
- /* debug_hooks :: XXX */
- /* */
- typedef struct FT_LibraryRec_
- {
- FT_Memory memory; /* library's memory manager */
-
- FT_Generic generic;
-
- FT_UInt num_modules;
- FT_Module modules[FT_MAX_MODULES]; /* module objects */
-
- FT_ListRec renderers; /* list of renderers */
- FT_Renderer cur_renderer; /* current outline renderer */
- FT_Module auto_hinter;
-
- FT_Byte* raster_pool; /* scan-line conversion */
- /* render pool */
- FT_ULong raster_pool_size; /* size of render pool in bytes */
-
- FT_DebugHook_Func debug_hooks[4];
-
- } FT_LibraryRec;
-
-
- BASE_DEF( FT_Renderer ) FT_Lookup_Renderer( FT_Library library,
- FT_Glyph_Format format,
- FT_ListNode* node );
-
- BASE_DEF( FT_Error ) FT_Render_Glyph_Internal( FT_Library library,
- FT_GlyphSlot slot,
- FT_UInt render_mode );
-
- typedef FT_Error (*FT_Glyph_Name_Requester)( FT_Face face,
- FT_UInt glyph_index,
- FT_Pointer buffer,
- FT_UInt buffer_max );
-
-
-#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
-
-
- FT_EXPORT_DEF( FT_Error ) FT_New_Stream( const char* filepathname,
- FT_Stream astream );
-
- FT_EXPORT_DEF( void ) FT_Done_Stream( FT_Stream stream );
-
- FT_EXPORT_DEF( FT_Memory ) FT_New_Memory( void );
-
-
-#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
-
-
- /* Define default raster's interface. The default raster is located in */
- /* `src/base/ftraster.c' */
- /* */
- /* Client applications can register new rasters through the */
- /* FT_Set_Raster() API. */
-
-#ifndef FT_NO_DEFAULT_RASTER
- FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
-#endif
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTOBJS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ftstream.h */
-/* */
-/* Stream handling(specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef FTSTREAM_H
-#define FTSTREAM_H
-
-#include <freetype/internal/ftobjs.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /* format of an 8-bit frame_op value = [ xxxxx | e | s ] */
- /* s is set to 1 if the value is signed, */
- /* e is set to 1 if the value is little-endian */
- /* xxxxx is a command */
-
-#define FT_FRAME_OP_SHIFT 2
-#define FT_FRAME_OP_SIGNED 1
-#define FT_FRAME_OP_LITTLE 2
-#define FT_FRAME_OP_COMMAND( x ) ( x >> FT_FRAME_OP_SHIFT )
-
-#define FT_MAKE_FRAME_OP( command, little, sign ) \
- ( ( command << FT_FRAME_OP_SHIFT ) | ( little << 1 ) | sign )
-
-#define FT_FRAME_OP_END 0
-#define FT_FRAME_OP_START 1 /* start a new frame */
-#define FT_FRAME_OP_BYTE 2 /* read 1-byte value */
-#define FT_FRAME_OP_SHORT 3 /* read 2-byte value */
-#define FT_FRAME_OP_LONG 4 /* read 4-byte value */
-#define FT_FRAME_OP_OFF3 5 /* read 3-byte value */
-#define FT_FRAME_OP_BYTES 6 /* read a bytes sequence */
-
-
- typedef enum FT_Frame_Op_
- {
- ft_frame_end = 0,
- ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ),
-
- ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ),
- ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ),
-
- ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ),
- ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ),
- ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ),
- ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ),
-
- ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ),
- ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ),
- ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ),
- ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ),
-
- ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ),
- ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ),
- ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ),
- ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ),
-
- ft_frame_bytes = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 0 ),
- ft_frame_skip = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 1 )
-
- } FT_Frame_Op;
-
-
- typedef struct FT_Frame_Field_
- {
- FT_Frame_Op value;
- char size;
- FT_UShort offset;
-
- } FT_Frame_Field;
-
-
- /* make-up a FT_Frame_Field out of a structure type and a field name */
-#define FT_FIELD_REF( s, f ) (((s*)0)->f)
-
-#define FT_FRAME_FIELD( frame_op, struct_type, field ) \
- { \
- frame_op, \
- sizeof ( FT_FIELD_REF( struct_type,field ) ), \
- (FT_UShort)(char*)&FT_FIELD_REF( struct_type, field ) \
- }
-
-#define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 }
-
-#define FT_FRAME_START( s ) { ft_frame_start, 0, s }
-#define FT_FRAME_END { ft_frame_end, 0, 0 }
-
-#define FT_FRAME_LONG( s, f ) FT_FRAME_FIELD( ft_frame_long_be, s, f )
-#define FT_FRAME_ULONG( s, f ) FT_FRAME_FIELD( ft_frame_ulong_be, s, f )
-#define FT_FRAME_SHORT( s, f ) FT_FRAME_FIELD( ft_frame_short_be, s, f )
-#define FT_FRAME_USHORT( s, f ) FT_FRAME_FIELD( ft_frame_ushort_be, s, f )
-#define FT_FRAME_BYTE( s, f ) FT_FRAME_FIELD( ft_frame_byte, s, f )
-#define FT_FRAME_CHAR( s, f ) FT_FRAME_FIELD( ft_frame_schar, s, f )
-
-#define FT_FRAME_LONG_LE( s, f ) FT_FRAME_FIELD( ft_frame_long_le, s, f )
-#define FT_FRAME_ULONG_LE( s, f ) FT_FRAME_FIELD( ft_frame_ulong_le, s, f )
-#define FT_FRAME_SHORT_LE( s, f ) FT_FRAME_FIELD( ft_frame_short_le, s, f )
-#define FT_FRAME_USHORT_LE( s, f ) FT_FRAME_FIELD( ft_frame_ushort_le, s, f )
-
-#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 }
-#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 }
-#define FT_FRAME_SKIP_BYTE { ft_frame_byte, 0, 0 }
-
-#define FT_FRAME_BYTES( struct_type, field, count ) \
- { \
- ft_frame_bytes, \
- count, \
- (FT_UShort)(char*)&FT_FIELD_REF( struct_type, field ) \
- }
-#define FT_FRAME_SKIP_BYTES( count ) { ft_frame_skip, count, 0 }
-
-
-
- /*************************************************************************/
- /* */
- /* integer extraction macros -- the `buffer' parameter must ALWAYS be of */
- /* type `char*' or equivalent (1-byte elements). */
- /* */
-#define NEXT_Char( buffer ) \
- ( (signed char)*buffer++ )
-#define NEXT_Byte( buffer ) \
- ( (unsigned char)*buffer++ )
-
-#define NEXT_Short( buffer ) \
- ( buffer += 2, \
- ( (short)( (signed char)buffer[-2] << 8 ) | \
- (unsigned char)buffer[-1] ) )
-
-#define NEXT_UShort( buffer ) \
- ( (unsigned short)NEXT_Short( buffer ) )
-
-#define NEXT_Offset( buffer ) \
- ( buffer += 3, \
- ( ( (long)(signed char)buffer[-3] << 16 ) | \
- ( (long)(unsigned char)buffer[-2] << 8 ) | \
- (long)(unsigned char)buffer[-1] ) )
-
-#define NEXT_UOffset( buffer ) \
- ( (unsigned long)NEXT_Offset( buffer ) )
-
-#define NEXT_Long( buffer ) \
- ( buffer += 4, \
- ( ( (long)(signed char)buffer[-4] << 24 ) | \
- ( (long)(unsigned char)buffer[-3] << 16 ) | \
- ( (long)(unsigned char)buffer[-2] << 8 ) | \
- (long)(unsigned char)buffer[-1] ) )
-
-#define NEXT_ULong( buffer ) \
- ( (unsigned long)NEXT_Long( buffer ) )
-
-
-#define NEXT_ShortLE( buffer ) \
- ( buffer += 2, \
- ( (short)( (signed char)buffer[-1] << 8 ) | \
- (unsigned char)buffer[-2] ) )
-
-#define NEXT_UShortLE( buffer ) \
- ( (unsigned short)NEXT_ShortLE( buffer ) )
-
-#define NEXT_OffsetLE( buffer ) \
- ( buffer += 3, \
- ( ( (long)(signed char)buffer[-1] << 16 ) | \
- ( (long)(unsigned char)buffer[-2] << 8 ) | \
- (long)(unsigned char)buffer[-3] ) )
-
-#define NEXT_UOffsetLE( buffer ) \
- ( (unsigned long)NEXT_OffsetLE( buffer ) )
-
-
-#define NEXT_LongLE( buffer ) \
- ( buffer += 4, \
- ( ( (long)(signed char)buffer[-1] << 24 ) | \
- ( (long)(unsigned char)buffer[-2] << 16 ) | \
- ( (long)(unsigned char)buffer[-3] << 8 ) | \
- (long)(unsigned char)buffer[-4] ) )
-
-#define NEXT_ULongLE( buffer ) \
- ( (unsigned long)NEXT_LongLE( buffer ) )
-
-
- /*************************************************************************/
- /* */
- /* Each GET_xxxx() macro uses an implicit `stream' variable. */
- /* */
-#define FT_GET_MACRO( func, type ) ( (type)func( stream ) )
-
-#define GET_Char() FT_GET_MACRO( FT_Get_Char, FT_Char )
-#define GET_Byte() FT_GET_MACRO( FT_Get_Char, FT_Byte )
-#define GET_Short() FT_GET_MACRO( FT_Get_Short, FT_Short )
-#define GET_UShort() FT_GET_MACRO( FT_Get_Short, FT_UShort )
-#define GET_Offset() FT_GET_MACRO( FT_Get_Offset, FT_Long )
-#define GET_UOffset() FT_GET_MACRO( FT_Get_Offset, FT_ULong )
-#define GET_Long() FT_GET_MACRO( FT_Get_Long, FT_Long )
-#define GET_ULong() FT_GET_MACRO( FT_Get_Long, FT_ULong )
-#define GET_Tag4() FT_GET_MACRO( FT_Get_Long, FT_ULong )
-
-#define GET_ShortLE() FT_GET_MACRO( FT_Get_ShortLE, FT_Short )
-#define GET_UShortLE() FT_GET_MACRO( FT_Get_ShortLE, FT_UShort )
-#define GET_LongLE() FT_GET_MACRO( FT_Get_LongLE, FT_Short )
-#define GET_ULongLE() FT_GET_MACRO( FT_Get_LongLE, FT_Short )
-
-#define FT_READ_MACRO( func, type, var ) \
- ( var = (type)func( stream, &error ), \
- error != FT_Err_Ok )
-
-#define READ_Byte( var ) FT_READ_MACRO( FT_Read_Char, FT_Byte, var )
-#define READ_Char( var ) FT_READ_MACRO( FT_Read_Char, FT_Char, var )
-#define READ_Short( var ) FT_READ_MACRO( FT_Read_Short, FT_Short, var )
-#define READ_UShort( var ) FT_READ_MACRO( FT_Read_Short, FT_UShort, var )
-#define READ_Offset( var ) FT_READ_MACRO( FT_Read_Offset, FT_Long, var )
-#define READ_UOffset( var ) FT_READ_MACRO( FT_Read_Offset, FT_ULong, var )
-#define READ_Long( var ) FT_READ_MACRO( FT_Read_Long, FT_Long, var )
-#define READ_ULong( var ) FT_READ_MACRO( FT_Read_Long, FT_ULong, var )
-
-#define READ_ShortLE( var ) FT_READ_MACRO( FT_Read_ShortLE, FT_Short, var )
-#define READ_UShortLE( var ) FT_READ_MACRO( FT_Read_ShortLE, FT_UShort, var )
-#define READ_LongLE( var ) FT_READ_MACRO( FT_Read_LongLE, FT_Long, var )
-#define READ_ULongLE( var ) FT_READ_MACRO( FT_Read_LongLE, FT_ULong, var )
-
-
- BASE_DEF( void ) FT_New_Memory_Stream( FT_Library library,
- FT_Byte* base,
- FT_ULong size,
- FT_Stream stream );
-
- BASE_DEF( FT_Error ) FT_Seek_Stream( FT_Stream stream,
- FT_ULong pos );
-
- BASE_DEF( FT_Error ) FT_Skip_Stream( FT_Stream stream,
- FT_Long distance );
-
- BASE_DEF( FT_Long ) FT_Stream_Pos( FT_Stream stream );
-
-
- BASE_DEF( FT_Error ) FT_Read_Stream( FT_Stream stream,
- FT_Byte* buffer,
- FT_ULong count );
-
- BASE_DEF( FT_Error ) FT_Read_Stream_At( FT_Stream stream,
- FT_ULong pos,
- FT_Byte* buffer,
- FT_ULong count );
-
- BASE_DEF( FT_Error ) FT_Access_Frame( FT_Stream stream,
- FT_ULong count );
-
- BASE_DEF( void ) FT_Forget_Frame( FT_Stream stream );
-
- BASE_DEF( FT_Error ) FT_Extract_Frame( FT_Stream stream,
- FT_ULong count,
- FT_Byte** pbytes );
-
- BASE_DEF( void ) FT_Release_Frame( FT_Stream stream,
- FT_Byte** pbytes );
-
- BASE_DEF( FT_Char ) FT_Get_Char( FT_Stream stream );
-
- BASE_DEF( FT_Short ) FT_Get_Short( FT_Stream stream );
-
- BASE_DEF( FT_Long ) FT_Get_Offset( FT_Stream stream );
-
- BASE_DEF( FT_Long ) FT_Get_Long( FT_Stream stream );
-
- BASE_DEF( FT_Short ) FT_Get_ShortLE( FT_Stream stream );
-
- BASE_DEF( FT_Long ) FT_Get_LongLE( FT_Stream stream );
-
-
- BASE_DEF( FT_Char ) FT_Read_Char( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Short ) FT_Read_Short( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Long ) FT_Read_Offset( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Long ) FT_Read_Long( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Short ) FT_Read_ShortLE( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Long ) FT_Read_LongLE( FT_Stream stream,
- FT_Error* error );
-
- BASE_DEF( FT_Error ) FT_Read_Fields( FT_Stream stream,
- const FT_Frame_Field* fields,
- void* structure );
-
-
-#define USE_Stream( resource, stream ) \
- FT_SET_ERROR( FT_Open_Stream( resource, stream ) )
-
-#define DONE_Stream( stream ) \
- FT_Done_Stream( stream )
-
-
-#define ACCESS_Frame( size ) \
- FT_SET_ERROR( FT_Access_Frame( stream, size ) )
-
-#define FORGET_Frame() \
- FT_Forget_Frame( stream )
-
-#define EXTRACT_Frame( size, bytes ) \
- FT_SET_ERROR( FT_Extract_Frame( stream, size, \
- (FT_Byte**)&(bytes) ) )
-
-#define RELEASE_Frame( bytes ) \
- FT_Release_Frame( stream, (FT_Byte**)&(bytes) )
-
-#define FILE_Seek( position ) \
- FT_SET_ERROR( FT_Seek_Stream( stream, position ) )
-
-#define FILE_Skip( distance ) \
- FT_SET_ERROR( FT_Skip_Stream( stream, distance ) )
-
-#define FILE_Pos() \
- FT_Stream_Pos( stream )
-
-#define FILE_Read( buffer, count ) \
- FT_SET_ERROR( FT_Read_Stream( stream, \
- (FT_Byte*)buffer, \
- count ) )
-
-#define FILE_Read_At( position, buffer, count ) \
- FT_SET_ERROR( FT_Read_Stream_At( stream, \
- position, \
- (FT_Byte*)buffer, \
- count ) )
-
-#define READ_Fields( fields, object ) \
- ( ( error = FT_Read_Fields( stream, fields, object ) ) != FT_Err_Ok )
-
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* FTSTREAM_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* psnames.h */
-/* */
-/* High-level interface for the `PSNames' module (in charge of */
-/* various functions related to Postscript glyph names conversion). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef PSNAMES_H
-#define PSNAMES_H
-
-
-#include <freetype/freetype.h>
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* PS_Unicode_Value_Func */
- /* */
- /* <Description> */
- /* A function used to return the Unicode index corresponding to a */
- /* given glyph name. */
- /* */
- /* <Input> */
- /* glyph_name :: The glyph name. */
- /* */
- /* <Return> */
- /* The Unicode character index resp. the non-Unicode value 0xFFFF if */
- /* the glyph name has no known Unicode meaning. */
- /* */
- /* <Note> */
- /* This function is able to map several different glyph names to the */
- /* same Unicode value, according to the rules defined in the Adobe */
- /* Glyph List table. */
- /* */
- /* This function will not be compiled if the configuration macro */
- /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is undefined. */
- /* */
- typedef FT_ULong (*PS_Unicode_Value_Func)( const char* glyph_name );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* PS_Unicode_Index_Func */
- /* */
- /* <Description> */
- /* A function used to return the glyph index corresponding to a given */
- /* Unicode value. */
- /* */
- /* <Input> */
- /* num_glyphs :: The number of glyphs in the face. */
- /* */
- /* glyph_names :: An array of glyph name pointers. */
- /* */
- /* unicode :: The Unicode value. */
- /* */
- /* <Return> */
- /* The glyph index resp. 0xFFFF if no glyph corresponds to this */
- /* Unicode value. */
- /* */
- /* <Note> */
- /* This function is able to recognize several glyph names per Unicode */
- /* value, according to the Adobe Glyph List. */
- /* */
- /* This function will not be compiled if the configuration macro */
- /* FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is undefined. */
- /* */
- typedef FT_UInt (*PS_Unicode_Index_Func)( FT_UInt num_glyphs,
- const char** glyph_names,
- FT_ULong unicode );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* PS_Macintosh_Name_Func */
- /* */
- /* <Description> */
- /* A function used to return the glyph name corresponding to an Apple */
- /* glyph name index. */
- /* */
- /* <Input> */
- /* name_index :: The index of the Mac name. */
- /* */
- /* <Return> */
- /* The glyph name, or 0 if the index is invalid. */
- /* */
- /* <Note> */
- /* This function will not be compiled if the configuration macro */
- /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES is undefined. */
- /* */
- typedef const char* (*PS_Macintosh_Name_Func)( FT_UInt name_index );
-
-
- typedef const char* (*PS_Adobe_Std_Strings_Func)( FT_UInt string_index );
-
-
- typedef struct PS_UniMap_
- {
- FT_UInt unicode;
- FT_UInt glyph_index;
-
- } PS_UniMap;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* PS_Unicodes */
- /* */
- /* <Description> */
- /* A simple table used to map Unicode values to glyph indices. It is */
- /* built by the PS_Build_Unicodes table according to the glyphs */
- /* present in a font file. */
- /* */
- /* <Fields> */
- /* num_codes :: The number of glyphs in the font that match a given */
- /* Unicode value. */
- /* */
- /* unicodes :: An array of unicode values, sorted in increasing */
- /* order. */
- /* */
- /* gindex :: An array of glyph indices, corresponding to each */
- /* Unicode value. */
- /* */
- /* <Note> */
- /* Use the function PS_Lookup_Unicode() to retrieve the glyph index */
- /* corresponding to a given Unicode character code. */
- /* */
- typedef struct PS_Unicodes_
- {
- FT_UInt num_maps;
- PS_UniMap* maps;
-
- } PS_Unicodes;
-
-
- typedef FT_Error (*PS_Build_Unicodes_Func)( FT_Memory memory,
- FT_UInt num_glyphs,
- const char** glyph_names,
- PS_Unicodes* unicodes );
-
- typedef FT_UInt (*PS_Lookup_Unicode_Func)( PS_Unicodes* unicodes,
- FT_UInt unicode );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* PSNames_Interface */
- /* */
- /* <Description> */
- /* This structure defines the PSNames interface. */
- /* */
- /* <Fields> */
- /* unicode_value :: A function used to convert a glyph name */
- /* into a Unicode character code. */
- /* */
- /* build_unicodes :: A function which builds up the Unicode */
- /* mapping table. */
- /* */
- /* lookup_unicode :: A function used to return the glyph index */
- /* corresponding to a given Unicode */
- /* character. */
- /* */
- /* macintosh_name :: A function used to return the standard */
- /* Apple glyph Postscript name corresponding */
- /* to a given string index (used by the */
- /* TrueType `post' table). */
- /* */
- /* adobe_std_strings :: A function that returns a pointer to a */
- /* Adobe Standard String for a given SID. */
- /* */
- /* adobe_std_encoding :: A table of 256 unsigned shorts that maps */
- /* character codes in the Adobe Standard */
- /* Encoding to SIDs. */
- /* */
- /* adobe_expert_encoding :: A table of 256 unsigned shorts that maps */
- /* character codes in the Adobe Expert */
- /* Encoding to SIDs. */
- /* */
- /* <Note> */
- /* `unicode_value' and `unicode_index' will be set to 0 if the */
- /* configuration macro FT_CONFIG_OPTION_ADOBE_GLYPH_LIST is */
- /* undefined. */
- /* */
- /* `macintosh_name' will be set to 0 if the configuration macro */
- /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES is undefined. */
- /* */
- typedef struct PSNames_Interface_
- {
- PS_Unicode_Value_Func unicode_value;
- PS_Build_Unicodes_Func build_unicodes;
- PS_Lookup_Unicode_Func lookup_unicode;
- PS_Macintosh_Name_Func macintosh_name;
-
- PS_Adobe_Std_Strings_Func adobe_std_strings;
- const unsigned short* adobe_std_encoding;
- const unsigned short* adobe_expert_encoding;
-
- } PSNames_Interface;
-
-
-#endif /* PSNAMES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* sfnt.h */
-/* */
-/* High-level `sfnt' driver interface (specification). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef SFNT_H
-#define SFNT_H
-
-
-#include <freetype/freetype.h>
-#include <freetype/internal/ftdriver.h>
-#include <freetype/internal/tttypes.h>
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Init_Face_Func */
- /* */
- /* <Description> */
- /* First part of the SFNT face object initialization. This will find */
- /* the face in a SFNT file or collection, and load its format tag in */
- /* face->format_tag. */
- /* */
- /* <Input> */
- /* stream :: The input stream. */
- /* */
- /* face :: A handle to the target face object. */
- /* */
- /* face_index :: The index of the TrueType font, if we are opening a */
- /* collection. */
- /* */
- /* num_params :: The number of additional parameters. */
- /* */
- /* params :: Optional additional parameters. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The stream cursor must be at the font file's origin. */
- /* */
- /* This function recognizes fonts embedded in a `TrueType */
- /* collection'. */
- /* */
- /* Once the format tag has been validated by the font driver, it */
- /* should then call the TT_Load_Face_Func() callback to read the rest */
- /* of the SFNT tables in the object. */
- /* */
- typedef
- FT_Error (*TT_Init_Face_Func)( FT_Stream stream,
- TT_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Face_Func */
- /* */
- /* <Description> */
- /* Second part of the SFNT face object initialization. This will */
- /* load the common SFNT tables (head, OS/2, maxp, metrics, etc.) in */
- /* the face object. */
- /* */
- /* <Input> */
- /* stream :: The input stream. */
- /* */
- /* face :: A handle to the target face object. */
- /* */
- /* face_index :: The index of the TrueType font, if we are opening a */
- /* collection. */
- /* */
- /* num_params :: The number of additional parameters. */
- /* */
- /* params :: Optional additional parameters. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function must be called after TT_Init_Face_Func(). */
- /* */
- typedef
- FT_Error (*TT_Load_Face_Func)( FT_Stream stream,
- TT_Face face,
- FT_Int face_index,
- FT_Int num_params,
- FT_Parameter* params );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Done_Face_Func */
- /* */
- /* <Description> */
- /* A callback used to delete the common SFNT data from a face. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Note> */
- /* This function does NOT destroy the face object. */
- /* */
- typedef
- void (*TT_Done_Face_Func)( TT_Face face );
-
-
- typedef
- FT_Module_Interface (*SFNT_Get_Interface_Func)( FT_Module module,
- const char* interface );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_SFNT_Header_Func */
- /* */
- /* <Description> */
- /* Loads the header of a SFNT font file. Supports collections. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* face_index :: The index of the TrueType font, if we are opening a */
- /* collection. */
- /* */
- /* <Output> */
- /* sfnt :: The SFNT header. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The stream cursor must be at the font file's origin. */
- /* */
- /* This function recognizes fonts embedded in a `TrueType */
- /* collection'. */
- /* */
- /* This function checks that the header is valid by looking at the */
- /* values of `search_range', `entry_selector', and `range_shift'. */
- /* */
- typedef
- FT_Error (*TT_Load_SFNT_Header_Func)( TT_Face face,
- FT_Stream stream,
- FT_Long face_index,
- SFNT_Header* sfnt );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Directory_Func */
- /* */
- /* <Description> */
- /* Loads the table directory into a face object. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* sfnt :: The SFNT header. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The stream cursor must be on the first byte after the 4-byte font */
- /* format tag. This is the case just after a call to */
- /* TT_Load_Format_Tag(). */
- /* */
- typedef
- FT_Error (*TT_Load_Directory_Func)( TT_Face face,
- FT_Stream stream,
- SFNT_Header* sfnt );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Any_Func */
- /* */
- /* <Description> */
- /* Loads any font table into client memory. */
- /* */
- /* <Input> */
- /* face :: The face object to look for. */
- /* */
- /* tag :: The tag of table to load. Use the value 0 if you want */
- /* to access the whole font file, else set this parameter */
- /* to a valid TrueType table tag that you can forge with */
- /* the MAKE_TT_TAG macro. */
- /* */
- /* offset :: The starting offset in the table (or the file if */
- /* tag == 0). */
- /* */
- /* length :: The address of the decision variable: */
- /* */
- /* If length == NULL: */
- /* Loads the whole table. Returns an error if */
- /* `offset' == 0! */
- /* */
- /* If *length == 0: */
- /* Exits immediately; returning the length of the given */
- /* table or of the font file, depending on the value of */
- /* `tag'. */
- /* */
- /* If *length != 0: */
- /* Loads the next `length' bytes of table or font, */
- /* starting at offset `offset' (in table or font too). */
- /* */
- /* <Output> */
- /* buffer :: The address of target buffer. */
- /* */
- /* <Return> */
- /* TrueType error code. 0 means success. */
- /* */
- typedef
- FT_Error (*TT_Load_Any_Func)( TT_Face face,
- FT_ULong tag,
- FT_Long offset,
- FT_Byte* buffer,
- FT_ULong* length );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_SBit_Image_Func */
- /* */
- /* <Description> */
- /* Loads a given glyph sbit image from the font resource. This also */
- /* returns its metrics. */
- /* */
- /* <Input> */
- /* face :: The target face object. */
- /* */
- /* x_ppem :: The horizontal resolution in points per EM. */
- /* */
- /* y_ppem :: The vertical resolution in points per EM. */
- /* */
- /* glyph_index :: The current glyph index. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* <Output> */
- /* map :: The target pixmap. */
- /* */
- /* metrics :: A big sbit metrics structure for the glyph image. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. Returns an error if no */
- /* glyph sbit exists for the index. */
- /* */
- /* <Note> */
- /* The `map.buffer' field is always freed before the glyph is loaded. */
- /* */
- typedef
- FT_Error (*TT_Load_SBit_Image_Func)( TT_Face face,
- FT_Int x_ppem,
- FT_Int y_ppem,
- FT_UInt glyph_index,
- FT_UInt load_flags,
- FT_Stream stream,
- FT_Bitmap* map,
- TT_SBit_Metrics* metrics );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Get_PS_Name_Func */
- /* */
- /* <Description> */
- /* Gets the PostScript glyph name of a glyph. */
- /* */
- /* <Input> */
- /* index :: The glyph index. */
- /* */
- /* PSname :: The address of a string pointer. Will be NULL in case */
- /* of error, otherwise it is a pointer to the glyph name. */
- /* */
- /* You must not modify the returned string! */
- /* */
- /* <Output> */
- /* FreeType error code. 0 means success. */
- /* */
- typedef
- FT_Error (*TT_Get_PS_Name_Func)( TT_Face face,
- FT_UInt index,
- FT_String** PSname );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Metrics_Func */
- /* */
- /* <Description> */
- /* Loads the horizontal or vertical header in a face object. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* vertical :: A boolean flag. If set, load vertical metrics. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- typedef
- FT_Error (*TT_Load_Metrics_Func)( TT_Face face,
- FT_Stream stream,
- FT_Bool vertical );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_CharMap_Load_Func */
- /* */
- /* <Description> */
- /* Loads a given TrueType character map into memory. */
- /* */
- /* <Input> */
- /* face :: A handle to the parent face object. */
- /* */
- /* stream :: A handle to the current stream object. */
- /* */
- /* <InOut> */
- /* cmap :: A pointer to a cmap object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The function assumes that the stream is already in use (i.e., */
- /* opened). In case of error, all partially allocated tables are */
- /* released. */
- /* */
- typedef
- FT_Error (*TT_CharMap_Load_Func)( TT_Face face,
- TT_CMapTable* cmap,
- FT_Stream input );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_CharMap_Free_Func */
- /* */
- /* <Description> */
- /* Destroys a character mapping table. */
- /* */
- /* <Input> */
- /* face :: A handle to the parent face object. */
- /* */
- /* cmap :: A handle to a cmap object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- typedef
- FT_Error (*TT_CharMap_Free_Func)( TT_Face face,
- TT_CMapTable* cmap );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Table_Func */
- /* */
- /* <Description> */
- /* Loads a given TrueType table. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The function will use `face->goto_table' to seek the stream to */
- /* the start of the table. */
- /* */
- typedef
- FT_Error (*TT_Load_Table_Func)( TT_Face face,
- FT_Stream stream );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Free_Table_Func */
- /* */
- /* <Description> */
- /* Frees a given TrueType table. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- typedef
- void (*TT_Free_Table_Func)( TT_Face face );
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* SFNT_Interface */
- /* */
- /* <Description> */
- /* This structure holds pointers to the functions used to load and */
- /* free the basic tables that are required in a `sfnt' font file. */
- /* */
- /* <Fields> */
- /* Check the various xxx_Func() descriptions for details. */
- /* */
- typedef struct SFNT_Interface_
- {
- TT_Goto_Table_Func goto_table;
-
- TT_Init_Face_Func init_face;
- TT_Load_Face_Func load_face;
- TT_Done_Face_Func done_face;
- SFNT_Get_Interface_Func get_interface;
-
- TT_Load_Any_Func load_any;
- TT_Load_SFNT_Header_Func load_sfnt_header;
- TT_Load_Directory_Func load_directory;
-
- /* these functions are called by `load_face' but they can also */
- /* be called from external modules, if there is a need to do so */
- TT_Load_Table_Func load_header;
- TT_Load_Metrics_Func load_metrics;
- TT_Load_Table_Func load_charmaps;
- TT_Load_Table_Func load_max_profile;
- TT_Load_Table_Func load_os2;
- TT_Load_Table_Func load_psnames;
-
- TT_Load_Table_Func load_names;
- TT_Free_Table_Func free_names;
-
- /* optional tables */
- TT_Load_Table_Func load_hdmx;
- TT_Free_Table_Func free_hdmx;
-
- TT_Load_Table_Func load_kerning;
- TT_Load_Table_Func load_gasp;
- TT_Load_Table_Func load_pclt;
-
- /* see `ttsbit.h' */
- TT_Load_Table_Func load_sbits;
- TT_Load_SBit_Image_Func load_sbit_image;
- TT_Free_Table_Func free_sbits;
-
- /* see `ttpost.h' */
- TT_Get_PS_Name_Func get_psname;
- TT_Free_Table_Func free_psnames;
-
- /* see `ttcmap.h' */
- TT_CharMap_Load_Func load_charmap;
- TT_CharMap_Free_Func free_charmap;
-
- } SFNT_Interface;
-
-
-#endif /* SFNT_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t1errors.h */
-/* */
-/* Type 1 error ID definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T1ERRORS_H
-#define T1ERRORS_H
-
-
- /************************ error codes declaration **************/
-
- /* The error codes are grouped into `classes' used to indicate the */
- /* `level' at which the error happened. */
- /* */
- /* The class is given by an error code's high byte. */
-
-
- /* ------------- Success is always 0 -------- */
-
-#define T1_Err_Ok FT_Err_Ok
-
- /* ----------- high level API errors -------- */
-
-#define T1_Err_Invalid_File_Format FT_Err_Invalid_File_Format
-#define T1_Err_Invalid_Argument FT_Err_Invalid_Argument
-#define T1_Err_Invalid_Driver_Handle FT_Err_Invalid_Driver_Handle
-#define T1_Err_Invalid_Face_Handle FT_Err_Invalid_Face_Handle
-#define T1_Err_Invalid_Size_Handle FT_Err_Invalid_Size_Handle
-#define T1_Err_Invalid_Glyph_Handle FT_Err_Invalid_Slot_Handle
-#define T1_Err_Invalid_CharMap_Handle FT_Err_Invalid_CharMap_Handle
-#define T1_Err_Invalid_Glyph_Index FT_Err_Invalid_Glyph_Index
-
-#define T1_Err_Unimplemented_Feature FT_Err_Unimplemented_Feature
-
-#define T1_Err_Invalid_Engine FT_Err_Invalid_Driver_Handle
-
- /* ------------- internal errors ------------ */
-
-#define T1_Err_Out_Of_Memory FT_Err_Out_Of_Memory
-#define T1_Err_Unlisted_Object FT_Err_Unlisted_Object
-
- /* ------------ general glyph outline errors ------ */
-
-#define T1_Err_Invalid_Composite FT_Err_Invalid_Composite
-
-#define T1_Err_Syntax_Error FT_Err_Invalid_File_Format
-#define T1_Err_Stack_Underflow FT_Err_Invalid_File_Format
-#define T1_Err_Stack_Overflow FT_Err_Invalid_File_Format
-
-
-#endif /* T1ERRORS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t1types.h */
-/* */
-/* Basic Type1/Type2 type definitions and interface (specification */
-/* only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T1TYPES_H
-#define T1TYPES_H
-
-
-#include <freetype/t1tables.h>
-#include <freetype/internal/psnames.h>
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** REQUIRED TYPE1/TYPE2 TABLES DEFINITIONS ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* T1_Encoding */
- /* */
- /* <Description> */
- /* A structure modeling a custom encoding */
- /* */
- /* <Fields> */
- /* num_chars :: The number of character codes in the encoding. */
- /* Usually 256. */
- /* */
- /* code_first :: The lowest valid character code in the encoding. */
- /* */
- /* code_last :: The highest valid character code in the encoding. */
- /* */
- /* char_index :: An array of corresponding glyph indices. */
- /* */
- /* char_name :: An array of corresponding glyph names. */
- /* */
- typedef struct T1_Encoding_
- {
- FT_Int num_chars;
- FT_Int code_first;
- FT_Int code_last;
-
- FT_UShort* char_index;
- FT_String** char_name;
-
- } T1_Encoding;
-
-
- typedef enum T1_EncodingType_
- {
- t1_encoding_none = 0,
- t1_encoding_array,
- t1_encoding_standard,
- t1_encoding_expert
-
- } T1_EncodingType;
-
-
- typedef struct T1_Font_
- {
-
- /* font info dictionary */
- T1_FontInfo font_info;
-
- /* private dictionary */
- T1_Private private_dict;
-
- /* top-level dictionary */
- FT_String* font_name;
-
- T1_EncodingType encoding_type;
- T1_Encoding encoding;
-
- FT_Byte* subrs_block;
- FT_Byte* charstrings_block;
- FT_Byte* glyph_names_block;
-
- FT_Int num_subrs;
- FT_Byte** subrs;
- FT_Int* subrs_len;
-
- FT_Int num_glyphs;
- FT_String** glyph_names; /* array of glyph names */
- FT_Byte** charstrings; /* array of glyph charstrings */
- FT_Int* charstrings_len;
-
- FT_Byte paint_type;
- FT_Byte font_type;
- FT_Matrix font_matrix;
- FT_BBox font_bbox;
- FT_Long font_id;
-
- FT_Int stroke_width;
-
- } T1_Font;
-
-
- typedef struct CID_Subrs_
- {
- FT_UInt num_subrs;
- FT_Byte** code;
-
- } CID_Subrs;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** ORIGINAL T1_FACE CLASS DEFINITION ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This structure/class is defined here because it is common to the */
- /* following formats: TTF, OpenType-TT, and OpenType-CFF. */
- /* */
- /* Note, however, that the classes TT_Size, TT_GlyphSlot, and TT_CharMap */
- /* are not shared between font drivers, and are thus defined normally in */
- /* `ttobjs.h'. */
- /* */
- /*************************************************************************/
-
- typedef struct T1_FaceRec_* T1_Face;
- typedef struct CID_FaceRec_* CID_Face;
-
-
- typedef struct T1_FaceRec_
- {
- FT_FaceRec root;
- T1_Font type1;
- void* psnames;
- void* afm_data;
- FT_CharMapRec charmaprecs[2];
- FT_CharMap charmaps[2];
- PS_Unicodes unicode_map;
-
- /* support for Multiple Masters fonts */
- T1_Blend* blend;
-
- } T1_FaceRec;
-
-
- typedef struct CID_FaceRec_
- {
- FT_FaceRec root;
- void* psnames;
- CID_Info cid;
- void* afm_data;
- CID_Subrs* subrs;
-
- } CID_FaceRec;
-
-
-#endif /* T1TYPES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2errors.h */
-/* */
-/* OpenType error ID definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2ERRORS_H
-#define T2ERRORS_H
-
-
- /*************************************************************************/
- /* */
- /* Error codes declaration */
- /* */
- /* The error codes are grouped in `classes' used to indicate the `level' */
- /* at which the error happened. The class is given by an error code's */
- /* high byte. */
- /* */
- /*************************************************************************/
-
-
- /* Success is always 0. */
-
-#define T2_Err_Ok FT_Err_Ok
-
- /* High level API errors. */
-
-#define T2_Err_Invalid_File_Format FT_Err_Invalid_File_Format
-#define T2_Err_Invalid_Argument FT_Err_Invalid_Argument
-#define T2_Err_Invalid_Driver_Handle FT_Err_Invalid_Driver_Handle
-#define T2_Err_Invalid_Face_Handle FT_Err_Invalid_Face_Handle
-#define T2_Err_Invalid_Instance_Handle FT_Err_Invalid_Size_Handle
-#define T2_Err_Invalid_Glyph_Handle FT_Err_Invalid_Slot_Handle
-#define T2_Err_Invalid_CharMap_Handle FT_Err_Invalid_CharMap_Handle
-#define T2_Err_Invalid_Glyph_Index FT_Err_Invalid_Glyph_Index
-
-#define T2_Err_Unimplemented_Feature FT_Err_Unimplemented_Feature
-
-#define T2_Err_Invalid_Engine FT_Err_Invalid_Driver_Handle
-
- /* Internal errors. */
-
-#define T2_Err_Out_Of_Memory FT_Err_Out_Of_Memory
-#define T2_Err_Unlisted_Object FT_Err_Unlisted_Object
-
- /* General glyph outline errors. */
-
-#define T2_Err_Invalid_Composite FT_Err_Invalid_Composite
-
- /* Bytecode interpreter error codes. */
-
- /* These error codes are produced by the TrueType */
- /* bytecode interpreter. They usually indicate a */
- /* broken font file, a broken glyph within a font */
- /* file, or a bug in the interpreter! */
-
-#define T2_Err_Invalid_Opcode 0x500
-#define T2_Err_Too_Few_Arguments 0x501
-#define T2_Err_Stack_Overflow 0x502
-#define T2_Err_Code_Overflow 0x503
-#define T2_Err_Bad_Argument 0x504
-#define T2_Err_Divide_By_Zero 0x505
-#define T2_Err_Storage_Overflow 0x506
-#define T2_Err_Cvt_Overflow 0x507
-#define T2_Err_Invalid_Reference 0x508
-#define T2_Err_Invalid_Distance 0x509
-#define T2_Err_Interpolate_Twilight 0x50A
-#define T2_Err_Debug_OpCode 0x50B
-#define T2_Err_ENDF_In_Exec_Stream 0x50C
-#define T2_Err_Out_Of_CodeRanges 0x50D
-#define T2_Err_Nested_DEFS 0x50E
-#define T2_Err_Invalid_CodeRange 0x50F
-#define T2_Err_Invalid_Displacement 0x510
-#define T2_Err_Execution_Too_Long 0x511
-
-#define T2_Err_Too_Many_Instruction_Defs 0x512
-#define T2_Err_Too_Many_Function_Defs 0x513
-
- /* Other TrueType specific error codes. */
-
-#define T2_Err_Table_Missing 0x520
-#define T2_Err_Too_Many_Extensions 0x521
-#define T2_Err_Extensions_Unsupported 0x522
-#define T2_Err_Invalid_Extension_Id 0x523
-
-#define T2_Err_No_Vertical_Data 0x524
-
-#define T2_Err_Max_Profile_Missing 0x530
-#define T2_Err_Header_Table_Missing 0x531
-#define T2_Err_Horiz_Header_Missing 0x532
-#define T2_Err_Locations_Missing 0x533
-#define T2_Err_Name_Table_Missing 0x534
-#define T2_Err_CMap_Table_Missing 0x535
-#define T2_Err_Hmtx_Table_Missing 0x536
-#define T2_Err_OS2_Table_Missing 0x537
-#define T2_Err_Post_Table_Missing 0x538
-
-#define T2_Err_Invalid_Horiz_Metrics 0x540
-#define T2_Err_Invalid_CharMap_Format 0x541
-#define T2_Err_Invalid_PPem 0x542
-#define T2_Err_Invalid_Vert_Metrics 0x543
-
-#define T2_Err_Could_Not_Find_Context 0x550
-
-
-#endif /* T2ERRORS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t2types.h */
-/* */
-/* Basic OpenType/CFF type definitions and interface (specification */
-/* only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T2TYPES_H
-#define T2TYPES_H
-
-
-#include <freetype/freetype.h>
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* CFF_Index */
- /* */
- /* <Description> */
- /* A structure used to model a CFF Index table. */
- /* */
- /* <Fields> */
- /* stream :: XXX */
- /* */
- /* count :: The number of elements in the index. */
- /* */
- /* off_size :: The size in bytes of object offsets in index. */
- /* */
- /* data_offset :: The position of first data byte in the index's */
- /* bytes. */
- /* */
- /* offsets :: XXX */
- /* */
- /* bytes :: If the index is loaded in memory, its bytes. */
- /* */
- typedef struct CFF_Index_
- {
- FT_Stream stream;
- FT_UInt count;
- FT_Byte off_size;
- FT_ULong data_offset;
-
- FT_ULong* offsets;
- FT_Byte* bytes;
-
- } CFF_Index;
-
-
- typedef struct CFF_Font_Dict_
- {
- FT_UInt version;
- FT_UInt notice;
- FT_UInt copyright;
- FT_UInt full_name;
- FT_UInt family_name;
- FT_UInt weight;
- FT_Bool is_fixed_pitch;
- FT_Fixed italic_angle;
- FT_Pos underline_position;
- FT_Pos underline_thickness;
- FT_Int paint_type;
- FT_Int charstring_type;
- FT_Matrix font_matrix;
- FT_ULong unique_id;
- FT_BBox font_bbox;
- FT_Pos stroke_width;
- FT_ULong charset_offset;
- FT_ULong encoding_offset;
- FT_ULong charstrings_offset;
- FT_ULong private_offset;
- FT_ULong private_size;
- FT_Long synthetic_base;
- FT_UInt embedded_postscript;
- FT_UInt base_font_name;
- FT_UInt postscript;
-
- /* these should only be used for the top-level font dictionary */
- FT_UInt cid_registry;
- FT_UInt cid_ordering;
- FT_ULong cid_supplement;
-
- FT_Long cid_font_version;
- FT_Long cid_font_revision;
- FT_Long cid_font_type;
- FT_Long cid_count;
- FT_ULong cid_uid_base;
- FT_ULong cid_fd_array_offset;
- FT_ULong cid_fd_select_offset;
- FT_UInt cid_font_name;
-
- } CFF_Font_Dict;
-
-
- typedef struct CFF_Private_
- {
- FT_Byte num_blue_values;
- FT_Byte num_other_blues;
- FT_Byte num_family_blues;
- FT_Byte num_family_other_blues;
-
- FT_Pos blue_values[14];
- FT_Pos other_blues[10];
- FT_Pos family_blues[14];
- FT_Pos family_other_blues[10];
-
- FT_Fixed blue_scale;
- FT_Pos blue_shift;
- FT_Pos blue_fuzz;
- FT_Pos standard_width;
- FT_Pos standard_height;
-
- FT_Byte num_snap_widths;
- FT_Byte num_snap_heights;
- FT_Pos snap_widths[13];
- FT_Pos snap_heights[13];
- FT_Bool force_bold;
- FT_Fixed force_bold_threshold;
- FT_Int lenIV;
- FT_Int language_group;
- FT_Fixed expansion_factor;
- FT_Long initial_random_seed;
- FT_ULong local_subrs_offset;
- FT_Pos default_width;
- FT_Pos nominal_width;
-
- } CFF_Private;
-
-
- typedef struct CFF_FD_Select_
- {
- FT_Byte format;
- FT_UInt range_count;
-
- /* that's the table, taken from the file `as is' */
- FT_Byte* data;
- FT_UInt data_size;
-
- /* small cache for format 3 only */
- FT_UInt cache_first;
- FT_UInt cache_count;
- FT_Byte cache_fd;
-
- } CFF_FD_Select;
-
-
- /* A SubFont packs a font dict and a private dict together. They are */
- /* needed to support CID-keyed CFF fonts. */
- typedef struct CFF_SubFont_
- {
- CFF_Font_Dict font_dict;
- CFF_Private private_dict;
-
- CFF_Index local_subrs_index;
- FT_UInt num_local_subrs;
- FT_Byte** local_subrs;
-
- } CFF_SubFont;
-
-
- /* maximum number of sub-fonts in a CID-keyed file */
-#define CFF_MAX_CID_FONTS 16
-
-
- typedef struct CFF_Font_
- {
- FT_Stream stream;
- FT_Memory memory;
- FT_UInt num_faces;
- FT_UInt num_glyphs;
-
- FT_Byte version_major;
- FT_Byte version_minor;
- FT_Byte header_size;
- FT_Byte absolute_offsize;
-
-
- CFF_Index name_index;
- CFF_Index top_dict_index;
- CFF_Index string_index;
- CFF_Index global_subrs_index;
-
- /* we don't load the Encoding and CharSet tables */
-
- CFF_Index charstrings_index;
- CFF_Index font_dict_index;
- CFF_Index private_index;
- CFF_Index local_subrs_index;
-
- FT_String* font_name;
- FT_UInt num_global_subrs;
- FT_Byte** global_subrs;
-
- CFF_SubFont top_font;
- FT_UInt num_subfonts;
- CFF_SubFont* subfonts[CFF_MAX_CID_FONTS];
-
- CFF_FD_Select fd_select;
-
- } CFF_Font;
-
-
-#endif /* T2TYPES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* tterrors.h */
-/* */
-/* TrueType error ID definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef TTERRORS_H
-#define TTERRORS_H
-
-
- /*************************************************************************/
- /* */
- /* Error codes declaration */
- /* */
- /* The error codes are grouped in `classes' used to indicate the `level' */
- /* at which the error happened. The class is given by an error code's */
- /* high byte. */
- /* */
- /*************************************************************************/
-
-
- /* Success is always 0. */
-
-#define TT_Err_Ok FT_Err_Ok
-
- /* High level API errors. */
-
-#define TT_Err_Invalid_File_Format FT_Err_Invalid_File_Format
-#define TT_Err_Invalid_Argument FT_Err_Invalid_Argument
-#define TT_Err_Invalid_Driver_Handle FT_Err_Invalid_Driver_Handle
-#define TT_Err_Invalid_Face_Handle FT_Err_Invalid_Face_Handle
-#define TT_Err_Invalid_Instance_Handle FT_Err_Invalid_Size_Handle
-#define TT_Err_Invalid_Glyph_Handle FT_Err_Invalid_Slot_Handle
-#define TT_Err_Invalid_CharMap_Handle FT_Err_Invalid_CharMap_Handle
-#define TT_Err_Invalid_Glyph_Index FT_Err_Invalid_Glyph_Index
-
-#define TT_Err_Unimplemented_Feature FT_Err_Unimplemented_Feature
-
-#define TT_Err_Invalid_Engine FT_Err_Invalid_Driver_Handle
-
- /* Internal errors. */
-
-#define TT_Err_Out_Of_Memory FT_Err_Out_Of_Memory
-#define TT_Err_Unlisted_Object FT_Err_Unlisted_Object
-
- /* General glyph outline errors. */
-
-#define TT_Err_Too_Many_Ins FT_Err_Too_Many_Hints
-#define TT_Err_Invalid_Composite FT_Err_Invalid_Composite
-
- /* Bytecode interpreter error codes. */
-
- /* These error codes are produced by the TrueType */
- /* bytecode interpreter. They usually indicate a */
- /* broken font file, a broken glyph within a font */
- /* file, or a bug in the interpreter! */
-
-#define TT_Err_Invalid_Opcode 0x400
-#define TT_Err_Too_Few_Arguments 0x401
-#define TT_Err_Stack_Overflow 0x402
-#define TT_Err_Code_Overflow 0x403
-#define TT_Err_Bad_Argument 0x404
-#define TT_Err_Divide_By_Zero 0x405
-#define TT_Err_Storage_Overflow 0x406
-#define TT_Err_Cvt_Overflow 0x407
-#define TT_Err_Invalid_Reference 0x408
-#define TT_Err_Invalid_Distance 0x409
-#define TT_Err_Interpolate_Twilight 0x40A
-#define TT_Err_Debug_OpCode 0x40B
-#define TT_Err_ENDF_In_Exec_Stream 0x40C
-#define TT_Err_Out_Of_CodeRanges 0x40D
-#define TT_Err_Nested_DEFS 0x40E
-#define TT_Err_Invalid_CodeRange 0x40F
-#define TT_Err_Invalid_Displacement 0x410
-#define TT_Err_Execution_Too_Long 0x411
-#define TT_Err_Too_Many_Function_Defs 0x412
-#define TT_Err_Too_Many_Instruction_Defs 0x413
-
- /* Other TrueType specific error codes. */
-
-#define TT_Err_Table_Missing 0x420
-#define TT_Err_Too_Many_Extensions 0x421
-#define TT_Err_Extensions_Unsupported 0x422
-#define TT_Err_Invalid_Extension_Id 0x423
-
-#define TT_Err_No_Vertical_Data 0x424
-
-#define TT_Err_Max_Profile_Missing 0x430
-#define TT_Err_Header_Table_Missing 0x431
-#define TT_Err_Horiz_Header_Missing 0x432
-#define TT_Err_Locations_Missing 0x433
-#define TT_Err_Name_Table_Missing 0x434
-#define TT_Err_CMap_Table_Missing 0x435
-#define TT_Err_Hmtx_Table_Missing 0x436
-#define TT_Err_OS2_Table_Missing 0x437
-#define TT_Err_Post_Table_Missing 0x438
-
-#define TT_Err_Invalid_Horiz_Metrics 0x440
-#define TT_Err_Invalid_CharMap_Format 0x441
-#define TT_Err_Invalid_PPem 0x442
-#define TT_Err_Invalid_Vert_Metrics 0x443
-
-#define TT_Err_Could_Not_Find_Context 0x450
-
-
-#endif /* TTERRORS_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* tttypes.h */
-/* */
-/* Basic SFNT/TrueType type definitions and interface (specification */
-/* only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef TTTYPES_H
-#define TTTYPES_H
-
-
-#include <freetype/tttables.h>
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** REQUIRED TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TTC_Header */
- /* */
- /* <Description> */
- /* TrueType collection header. This table contains the offsets of */
- /* the font headers of each distinct TrueType face in the file. */
- /* */
- /* <Fields> */
- /* tag :: Must be `ttc ' to indicate a TrueType collection. */
- /* */
- /* version :: The version number. */
- /* */
- /* count :: The number of faces in the collection. The */
- /* specification says this should be an unsigned long, but */
- /* we use a signed long since we need the value -1 for */
- /* specific purposes. */
- /* */
- /* offsets :: The offsets of the font headers, one per face. */
- /* */
- typedef struct TTC_Header_
- {
- FT_ULong tag;
- FT_Fixed version;
- FT_Long count;
- FT_ULong* offsets;
-
- } TTC_Header;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* SFNT_Header */
- /* */
- /* <Description> */
- /* SFNT file format header. */
- /* */
- /* <Fields> */
- /* format_tag :: The font format tag. */
- /* */
- /* num_tables :: The number of tables in file. */
- /* */
- /* search_range :: Must be 16*(max power of 2 <= num_tables). */
- /* */
- /* entry_selector :: Must be log2 of search_range/16. */
- /* */
- /* range_shift :: Must be num_tables*16 - search_range. */
- /* */
- typedef struct SFNT_Header_
- {
- FT_ULong format_tag;
- FT_UShort num_tables;
- FT_UShort search_range;
- FT_UShort entry_selector;
- FT_UShort range_shift;
-
- } SFNT_Header;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_TableDir */
- /* */
- /* <Description> */
- /* This structure models a TrueType table directory. It is used to */
- /* access the various tables of the font face. */
- /* */
- /* <Fields> */
- /* version :: The version number; starts with 0x00010000. */
- /* */
- /* numTables :: The number of tables. */
- /* */
- /* searchRange :: Unused. */
- /* */
- /* entrySelector :: Unused. */
- /* */
- /* rangeShift :: Unused. */
- /* */
- /* <Note> */
- /* This structure is only used during font opening. */
- /* */
- typedef struct TT_TableDir_
- {
- FT_Fixed version; /* should be 0x10000 */
- FT_UShort numTables; /* number of tables */
-
- FT_UShort searchRange; /* These parameters are only used */
- FT_UShort entrySelector; /* for a dichotomy search in the */
- FT_UShort rangeShift; /* directory. We ignore them. */
-
- } TT_TableDir;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Table */
- /* */
- /* <Description> */
- /* This structure describes a given table of a TrueType font. */
- /* */
- /* <Fields> */
- /* Tag :: A four-bytes tag describing the table. */
- /* */
- /* CheckSum :: The table checksum. This value can be ignored. */
- /* */
- /* Offset :: The offset of the table from the start of the TrueType */
- /* font in its resource. */
- /* */
- /* Length :: The table length (in bytes). */
- /* */
- typedef struct TT_Table_
- {
- FT_ULong Tag; /* table type */
- FT_ULong CheckSum; /* table checksum */
- FT_ULong Offset; /* table file offset */
- FT_ULong Length; /* table length */
-
- } TT_Table;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_CMapDir */
- /* */
- /* <Description> */
- /* This structure describes the directory of the `cmap' table, */
- /* containing the font's character mappings table. */
- /* */
- /* <Fields> */
- /* tableVersionNumber :: The version number. */
- /* */
- /* numCMaps :: The number of charmaps in the font. */
- /* */
- /* <Note> */
- /* This structure is only used during font loading. */
- /* */
- typedef struct TT_CMapDir_
- {
- FT_UShort tableVersionNumber;
- FT_UShort numCMaps;
-
- } TT_CMapDir;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_CMapDirEntry */
- /* */
- /* <Description> */
- /* This structure describes a charmap in a TrueType font. */
- /* */
- /* <Fields> */
- /* platformID :: An ID used to specify for which platform this */
- /* charmap is defined (FreeType manages all platforms). */
- /* */
- /* encodingID :: A platform-specific ID used to indicate which source */
- /* encoding is used in this charmap. */
- /* */
- /* offset :: The offset of the charmap relative to the start of */
- /* the `cmap' table. */
- /* */
- /* <Note> */
- /* This structure is only used during font loading. */
- /* */
- typedef struct TT_CMapDirEntry_
- {
- FT_UShort platformID;
- FT_UShort platformEncodingID;
- FT_Long offset;
-
- } TT_CMapDirEntry;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_LongMetrics */
- /* */
- /* <Description> */
- /* A structure modeling the long metrics of the `hmtx' and `vmtx' */
- /* TrueType tables. The values are expressed in font units. */
- /* */
- /* <Fields> */
- /* advance :: The advance width or height for the glyph. */
- /* */
- /* bearing :: The left-side or top-side bearing for the glyph. */
- /* */
- typedef struct TT_LongMetrics_
- {
- FT_UShort advance;
- FT_Short bearing;
-
- } TT_LongMetrics;
-
-
- /*************************************************************************/
- /* */
- /* <Type> TT_ShortMetrics */
- /* */
- /* <Description> */
- /* A simple type to model the short metrics of the `hmtx' and `vmtx' */
- /* tables. */
- /* */
- typedef FT_Short TT_ShortMetrics;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_NameRec */
- /* */
- /* <Description> */
- /* A structure modeling TrueType name records. Name records are used */
- /* to store important strings like family name, style name, */
- /* copyright, etc. in _localized_ versions (i.e., language, encoding, */
- /* etc). */
- /* */
- /* <Fields> */
- /* platformID :: The ID of the name's encoding platform. */
- /* */
- /* encodingID :: The platform-specific ID for the name's encoding. */
- /* */
- /* languageID :: The platform-specific ID for the name's language. */
- /* */
- /* nameID :: The ID specifying what kind of name this is. */
- /* */
- /* stringLength :: The length of the string in bytes. */
- /* */
- /* stringOffset :: The offset to the string in the `name' table. */
- /* */
- /* string :: A pointer to the string's bytes. Note that these */
- /* are usually UTF-16 encoded characters. */
- /* */
- typedef struct TT_NameRec_
- {
- FT_UShort platformID;
- FT_UShort encodingID;
- FT_UShort languageID;
- FT_UShort nameID;
- FT_UShort stringLength;
- FT_UShort stringOffset;
-
- /* this last field is not defined in the spec */
- /* but used by the FreeType engine */
-
- FT_Byte* string;
-
- } TT_NameRec;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_NameTable */
- /* */
- /* <Description> */
- /* A structure modeling the TrueType name table. */
- /* */
- /* <Fields> */
- /* format :: The format of the name table. */
- /* */
- /* numNameRecords :: The number of names in table. */
- /* */
- /* storageOffset :: The offset of the name table in the `name' */
- /* TrueType table. */
- /* */
- /* names :: An array of name records. */
- /* */
- /* storage :: The names storage area. */
- /* */
- typedef struct TT_NameTable_
- {
- FT_UShort format;
- FT_UShort numNameRecords;
- FT_UShort storageOffset;
- TT_NameRec* names;
- FT_Byte* storage;
-
- } TT_NameTable;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** OPTIONAL TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_GaspRange */
- /* */
- /* <Description> */
- /* A tiny structure used to model a gasp range according to the */
- /* TrueType specification. */
- /* */
- /* <Fields> */
- /* maxPPEM :: The maximum ppem value to which `gaspFlag' applies. */
- /* */
- /* gaspFlag :: A flag describing the grid-fitting and anti-aliasing */
- /* modes to be used. */
- /* */
- typedef struct TT_GaspRange_
- {
- FT_UShort maxPPEM;
- FT_UShort gaspFlag;
-
- } TT_GaspRange;
-
-
-#define TT_GASP_GRIDFIT 0x01
-#define TT_GASP_DOGRAY 0x02
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Gasp */
- /* */
- /* <Description> */
- /* A structure modeling the TrueType `gasp' table used to specify */
- /* grid-fitting and anti-aliasing behaviour. */
- /* */
- /* <Fields> */
- /* version :: The version number. */
- /* */
- /* numRanges :: The number of gasp ranges in table. */
- /* */
- /* gaspRanges :: An array of gasp ranges. */
- /* */
- typedef struct TT_Gasp_
- {
- FT_UShort version;
- FT_UShort numRanges;
- TT_GaspRange* gaspRanges;
-
- } TT_Gasp;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_HdmxRec */
- /* */
- /* <Description> */
- /* A small structure used to model the pre-computed widths of a given */
- /* size. They are found in the `hdmx' table. */
- /* */
- /* <Fields> */
- /* ppem :: The pixels per EM value at which these metrics apply. */
- /* */
- /* max_width :: The maximum advance width for this metric. */
- /* */
- /* widths :: An array of widths. Note: These are 8-bit bytes. */
- /* */
- typedef struct TT_HdmxRec_
- {
- FT_Byte ppem;
- FT_Byte max_width;
- FT_Byte* widths;
-
- } TT_HdmxRec;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Hdmx */
- /* */
- /* <Description> */
- /* A structure used to model the `hdmx' table, which contains */
- /* pre-computed widths for a set of given sizes/dimensions. */
- /* */
- /* <Fields> */
- /* version :: The version number. */
- /* */
- /* num_records :: The number of hdmx records. */
- /* */
- /* records :: An array of hdmx records. */
- /* */
- typedef struct TT_Hdmx_
- {
- FT_UShort version;
- FT_Short num_records;
- TT_HdmxRec* records;
-
- } TT_Hdmx;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Kern_0_Pair */
- /* */
- /* <Description> */
- /* A structure used to model a kerning pair for the kerning table */
- /* format 0. The engine now loads this table if it finds one in the */
- /* font file. */
- /* */
- /* <Fields> */
- /* left :: The index of the left glyph in pair. */
- /* */
- /* right :: The index of the right glyph in pair. */
- /* */
- /* value :: The kerning distance. A positive value spaces the */
- /* glyphs, a negative one makes them closer. */
- /* */
- typedef struct TT_Kern_0_Pair_
- {
- FT_UShort left; /* index of left glyph in pair */
- FT_UShort right; /* index of right glyph in pair */
- FT_FWord value; /* kerning value */
-
- } TT_Kern_0_Pair;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** EMBEDDED BITMAPS SUPPORT ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Metrics */
- /* */
- /* <Description> */
- /* A structure used to hold the big metrics of a given glyph bitmap */
- /* in a TrueType or OpenType font. These are usually found in the */
- /* `EBDT' (Microsoft) or `bdat' (Apple) table. */
- /* */
- /* <Fields> */
- /* height :: The glyph height in pixels. */
- /* */
- /* width :: The glyph width in pixels. */
- /* */
- /* horiBearingX :: The horizontal left bearing. */
- /* */
- /* horiBearingY :: The horizontal top bearing. */
- /* */
- /* horiAdvance :: The horizontal advance. */
- /* */
- /* vertBearingX :: The vertical left bearing. */
- /* */
- /* vertBearingY :: The vertical top bearing. */
- /* */
- /* vertAdvance :: The vertical advance. */
- /* */
- typedef struct TT_SBit_Metrics_
- {
- FT_Byte height;
- FT_Byte width;
-
- FT_Char horiBearingX;
- FT_Char horiBearingY;
- FT_Byte horiAdvance;
-
- FT_Char vertBearingX;
- FT_Char vertBearingY;
- FT_Byte vertAdvance;
-
- } TT_SBit_Metrics;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Small_Metrics */
- /* */
- /* <Description> */
- /* A structure used to hold the small metrics of a given glyph bitmap */
- /* in a TrueType or OpenType font. These are usually found in the */
- /* `EBDT' (Microsoft) or the `bdat' (Apple) table. */
- /* */
- /* <Fields> */
- /* height :: The glyph height in pixels. */
- /* */
- /* width :: The glyph width in pixels. */
- /* */
- /* bearingX :: The left-side bearing. */
- /* */
- /* bearingY :: The top-side bearing. */
- /* */
- /* advance :: The advance width or height. */
- /* */
- typedef struct TT_SBit_Small_Metrics_
- {
- FT_Byte height;
- FT_Byte width;
-
- FT_Char bearingX;
- FT_Char bearingY;
- FT_Byte advance;
-
- } TT_SBit_Small_Metrics;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Line_Metrics */
- /* */
- /* <Description> */
- /* A structure used to describe the text line metrics of a given */
- /* bitmap strike, for either a horizontal or vertical layout. */
- /* */
- /* <Fields> */
- /* ascender :: The ascender in pixels. */
- /* */
- /* descender :: The descender in pixels. */
- /* */
- /* max_width :: The maximum glyph width in pixels. */
- /* */
- /* caret_slope_enumerator :: Rise of the caret slope, typically set */
- /* to 1 for non-italic fonts. */
- /* */
- /* caret_slope_denominator :: Rise of the caret slope, typically set */
- /* to 0 for non-italic fonts. */
- /* */
- /* caret_offset :: Offset in pixels to move the caret for */
- /* proper positioning. */
- /* */
- /* min_origin_SB :: Minimum of horiBearingX (resp. */
- /* vertBearingY). */
- /* min_advance_SB :: Minimum of */
- /* */
- /* horizontal advance - */
- /* ( horiBearingX + width ) */
- /* */
- /* resp. */
- /* */
- /* vertical advance - */
- /* ( vertBearingY + height ) */
- /* */
- /* max_before_BL :: Maximum of horiBearingY (resp. */
- /* vertBearingY). */
- /* */
- /* min_after_BL :: Minimum of */
- /* */
- /* horiBearingY - height */
- /* */
- /* resp. */
- /* */
- /* vertBearingX - width */
- /* */
- /* pads :: Unused (to make the size of the record */
- /* a multiple of 32 bits. */
- /* */
- typedef struct TT_SBit_Line_Metrics_
- {
- FT_Char ascender;
- FT_Char descender;
- FT_Byte max_width;
- FT_Char caret_slope_numerator;
- FT_Char caret_slope_denominator;
- FT_Char caret_offset;
- FT_Char min_origin_SB;
- FT_Char min_advance_SB;
- FT_Char max_before_BL;
- FT_Char min_after_BL;
- FT_Char pads[2];
-
- } TT_SBit_Line_Metrics;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Range */
- /* */
- /* <Description> */
- /* A TrueType/OpenType subIndexTable as defined in the `EBLC' */
- /* (Microsoft) or `bloc' (Apple) tables. */
- /* */
- /* <Fields> */
- /* first_glyph :: The first glyph index in the range. */
- /* */
- /* last_glyph :: The last glyph index in the range. */
- /* */
- /* index_format :: The format of index table. Valid values are 1 */
- /* to 5. */
- /* */
- /* image_format :: The format of `EBDT' image data. */
- /* */
- /* image_offset :: The offset to image data in `EBDT'. */
- /* */
- /* image_size :: For index formats 2 and 5. This is the size in */
- /* bytes of each glyph bitmap. */
- /* */
- /* big_metrics :: For index formats 2 and 5. This is the big */
- /* metrics for each glyph bitmap. */
- /* */
- /* num_glyphs :: For index formats 4 and 5. This is the number of */
- /* glyphs in the code array. */
- /* */
- /* glyph_offsets :: For index formats 1 and 3. */
- /* */
- /* glyph_codes :: For index formats 4 and 5. */
- /* */
- /* table_offset :: The offset of the index table in the `EBLC' */
- /* table. Only used during strike loading. */
- /* */
- typedef struct TT_SBit_Range
- {
- FT_UShort first_glyph;
- FT_UShort last_glyph;
-
- FT_UShort index_format;
- FT_UShort image_format;
- FT_ULong image_offset;
-
- FT_ULong image_size;
- TT_SBit_Metrics metrics;
- FT_ULong num_glyphs;
-
- FT_ULong* glyph_offsets;
- FT_UShort* glyph_codes;
-
- FT_ULong table_offset;
-
- } TT_SBit_Range;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Strike */
- /* */
- /* <Description> */
- /* A structure used describe a given bitmap strike in the `EBLC' */
- /* (Microsoft) or `bloc' (Apple) tables. */
- /* */
- /* <Fields> */
- /* num_index_ranges :: The number of index ranges. */
- /* */
- /* index_ranges :: An array of glyph index ranges. */
- /* */
- /* color_ref :: Unused. A color reference? */
- /* */
- /* hori :: The line metrics for horizontal layouts. */
- /* */
- /* vert :: The line metrics for vertical layouts. */
- /* */
- /* start_glyph :: The lowest glyph index for this strike. */
- /* */
- /* end_glyph :: The highest glyph index for this strike. */
- /* */
- /* x_ppem :: The number of horizontal pixels per EM. */
- /* */
- /* y_ppem :: The number of vertical pixels per EM. */
- /* */
- /* bit_depth :: The bit depth. Valid values are 1, 2, 4, */
- /* and 8. */
- /* */
- /* flags :: Is this a vertical or horizontal strike? */
- /* */
- typedef struct TT_SBit_Strike_
- {
- FT_Int num_ranges;
- TT_SBit_Range* sbit_ranges;
- FT_ULong ranges_offset;
-
- FT_ULong color_ref;
-
- TT_SBit_Line_Metrics hori;
- TT_SBit_Line_Metrics vert;
-
- FT_UShort start_glyph;
- FT_UShort end_glyph;
-
- FT_Byte x_ppem;
- FT_Byte y_ppem;
-
- FT_Byte bit_depth;
- FT_Char flags;
-
- } TT_SBit_Strike;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Component */
- /* */
- /* <Description> */
- /* A simple structure to describe a compound sbit element. */
- /* */
- /* <Fields> */
- /* glyph_code :: The element's glyph index. */
- /* */
- /* x_offset :: The element's left bearing. */
- /* */
- /* y_offset :: The element's top bearing. */
- /* */
- typedef struct TT_SBit_Component_
- {
- FT_UShort glyph_code;
-
- FT_Char x_offset;
- FT_Char y_offset;
-
- } TT_SBit_Component;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_SBit_Scale */
- /* */
- /* <Description> */
- /* A structure used describe a given bitmap scaling table, as defined */
- /* in the `EBSC' table. */
- /* */
- /* <Fields> */
- /* hori :: The horizontal line metrics. */
- /* */
- /* vert :: The vertical line metrics. */
- /* */
- /* x_ppem :: The number of horizontal pixels per EM. */
- /* */
- /* y_ppem :: The number of vertical pixels per EM. */
- /* */
- /* x_ppem_substitute :: Substitution x_ppem value. */
- /* */
- /* y_ppem_substitute :: Substitution y_ppem value. */
- /* */
- typedef struct TT_SBit_Scale_
- {
- TT_SBit_Line_Metrics hori;
- TT_SBit_Line_Metrics vert;
-
- FT_Byte x_ppem;
- FT_Byte y_ppem;
-
- FT_Byte x_ppem_substitute;
- FT_Byte y_ppem_substitute;
-
- } TT_SBit_Scale;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** POSTSCRIPT GLYPH NAMES SUPPORT ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Post_20 */
- /* */
- /* <Description> */
- /* Postscript names sub-table, format 2.0. Stores the PS name of */
- /* each glyph in the font face. */
- /* */
- /* <Fields> */
- /* num_glyphs :: The number of named glyphs in the table. */
- /* */
- /* num_names :: The number of PS names stored in the table. */
- /* */
- /* glyph_indices :: The indices of the glyphs in the names arrays. */
- /* */
- /* glyph_names :: The PS names not in Mac Encoding. */
- /* */
- typedef struct TT_Post_20_
- {
- FT_UShort num_glyphs;
- FT_UShort num_names;
- FT_UShort* glyph_indices;
- FT_Char** glyph_names;
-
- } TT_Post_20;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Post_25 */
- /* */
- /* <Description> */
- /* Postscript names sub-table, format 2.5. Stores the PS name of */
- /* each glyph in the font face. */
- /* */
- /* <Fields> */
- /* num_glyphs :: The number of glyphs in the table. */
- /* */
- /* offsets :: An array of signed offsets in a normal Mac */
- /* Postscript name encoding. */
- /* */
- typedef struct TT_Post_25_
- {
- FT_UShort num_glyphs;
- FT_Char* offsets;
-
- } TT_Post_25;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Post_Names */
- /* */
- /* <Description> */
- /* Postscript names table, either format 2.0 or 2.5. */
- /* */
- /* <Fields> */
- /* loaded :: A flag to indicate whether the PS names are loaded. */
- /* */
- /* format_20 :: The sub-table used for format 2.0. */
- /* */
- /* format_25 :: The sub-table used for format 2.5. */
- /* */
- typedef struct TT_Post_Names_
- {
- FT_Bool loaded;
-
- union
- {
- TT_Post_20 format_20;
- TT_Post_25 format_25;
-
- } names;
-
- } TT_Post_Names;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** TRUETYPE CHARMAPS SUPPORT ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /* format 0 */
-
- typedef struct TT_CMap0_
- {
- FT_Byte* glyphIdArray;
-
- } TT_CMap0;
-
-
- /* format 2 */
-
- typedef struct TT_CMap2SubHeader_
- {
- FT_UShort firstCode; /* first valid low byte */
- FT_UShort entryCount; /* number of valid low bytes */
- FT_Short idDelta; /* delta value to glyphIndex */
- FT_UShort idRangeOffset; /* offset from here to 1st code */
-
- } TT_CMap2SubHeader;
-
-
- typedef struct TT_CMap2_
- {
- FT_UShort* subHeaderKeys;
- /* high byte mapping table */
- /* value = subHeader index * 8 */
-
- TT_CMap2SubHeader* subHeaders;
- FT_UShort* glyphIdArray;
- FT_UShort numGlyphId; /* control value */
-
- } TT_CMap2;
-
-
- /* format 4 */
-
- typedef struct TT_CMap4Segment_
- {
- FT_UShort endCount;
- FT_UShort startCount;
- FT_Short idDelta;
- FT_UShort idRangeOffset;
-
- } TT_CMap4Segment;
-
-
- typedef struct TT_CMap4_
- {
- FT_UShort segCountX2; /* number of segments * 2 */
- FT_UShort searchRange; /* these parameters can be used */
- FT_UShort entrySelector; /* for a binary search */
- FT_UShort rangeShift;
-
- TT_CMap4Segment* segments;
- FT_UShort* glyphIdArray;
- FT_UShort numGlyphId; /* control value */
-
- TT_CMap4Segment* last_segment; /* last used segment; this is a small */
- /* cache to potentially increase speed */
- } TT_CMap4;
-
-
- /* format 6 */
-
- typedef struct TT_CMap6_
- {
- FT_UShort firstCode; /* first character code of subrange */
- FT_UShort entryCount; /* number of character codes in subrange */
-
- FT_UShort* glyphIdArray;
-
- } TT_CMap6;
-
-
- typedef struct TT_CMapTable_ TT_CMapTable;
-
-
- typedef
- FT_UInt (*TT_CharMap_Func)( TT_CMapTable* charmap,
- FT_ULong char_code );
-
-
- /* charmap table */
- struct TT_CMapTable_
- {
- FT_UShort platformID;
- FT_UShort platformEncodingID;
- FT_UShort format;
- FT_UShort length;
- FT_UShort version;
-
- FT_Bool loaded;
- FT_ULong offset;
-
- union
- {
- TT_CMap0 cmap0;
- TT_CMap2 cmap2;
- TT_CMap4 cmap4;
- TT_CMap6 cmap6;
- } c;
-
- TT_CharMap_Func get_index;
- };
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_CharMapRec */
- /* */
- /* <Description> */
- /* The TrueType character map object type. */
- /* */
- /* <Fields> */
- /* root :: The parent character map structure. */
- /* */
- /* cmap :: The used character map. */
- /* */
- typedef struct TT_CharMapRec_
- {
- FT_CharMapRec root;
- TT_CMapTable cmap;
-
- } TT_CharMapRec;
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /*** ***/
- /*** ***/
- /*** ORIGINAL TT_FACE CLASS DEFINITION ***/
- /*** ***/
- /*** ***/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* This structure/class is defined here because it is common to the */
- /* following formats: TTF, OpenType-TT, and OpenType-CFF. */
- /* */
- /* Note, however, that the classes TT_Size, TT_GlyphSlot, and TT_CharMap */
- /* are not shared between font drivers, and are thus defined normally in */
- /* `ttobjs.h'. */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* TT_Face */
- /* */
- /* <Description> */
- /* A handle to a TrueType face/font object. A TT_Face encapsulates */
- /* the resolution and scaling independent parts of a TrueType font */
- /* resource. */
- /* */
- /* <Note> */
- /* The TT_Face structure is also used as a `parent class' for the */
- /* OpenType-CFF class (T2_Face). */
- /* */
- typedef struct TT_FaceRec_* TT_Face;
-
-
- /*************************************************************************/
- /* */
- /* <Type> */
- /* TT_CharMap */
- /* */
- /* <Description> */
- /* A handle to a TrueType character mapping object. */
- /* */
- typedef struct TT_CharMapRec_* TT_CharMap;
-
-
- /* a function type used for the truetype bytecode interpreter hooks */
- typedef FT_Error (*TT_Interpreter)( void* exec_context );
-
- /* forward declaration */
- typedef struct TT_Loader_ TT_Loader;
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Goto_Table_Func */
- /* */
- /* <Description> */
- /* Seeks a stream to the start of a given TrueType table. */
- /* */
- /* <Input> */
- /* face :: A handle to the target face object. */
- /* */
- /* tag :: A 4-byte tag used to name the table. */
- /* */
- /* stream :: The input stream. */
- /* */
- /* <Output> */
- /* length :: The length of the table in bytes. Set to 0 if not */
- /* needed. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* The stream cursor must be at the font file's origin. */
- /* */
- typedef
- FT_Error (*TT_Goto_Table_Func)( TT_Face face,
- FT_ULong tag,
- FT_Stream stream,
- FT_ULong* length );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Access_Glyph_Frame_Func */
- /* */
- /* <Description> */
- /* Seeks a stream to the start of a given glyph element, and opens a */
- /* frame for it. */
- /* */
- /* <Input> */
- /* loader :: The current TrueType glyph loader object. */
- /* */
- /* glyph index :: The index of the glyph to access. */
- /* */
- /* offset :: The offset of the glyph according to the */
- /* `locations' table. */
- /* */
- /* byte_count :: The size of the frame in bytes. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- /* <Note> */
- /* This function is normally equivalent to FILE_Seek(offset) */
- /* followed by ACCESS_Frame(byte_count) with the loader's stream, but */
- /* alternative formats (e.g. compressed ones) might use something */
- /* different. */
- /* */
- typedef
- FT_Error (*TT_Access_Glyph_Frame_Func)( TT_Loader* loader,
- FT_UInt glyph_index,
- FT_ULong offset,
- FT_UInt byte_count );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Load_Glyph_Element_Func */
- /* */
- /* <Description> */
- /* Reads one glyph element (its header, a simple glyph, or a */
- /* composite) from the loader's current stream frame. */
- /* */
- /* <Input> */
- /* loader :: The current TrueType glyph loader object. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- typedef
- FT_Error (*TT_Load_Glyph_Element_Func)( TT_Loader* loader );
-
-
- /*************************************************************************/
- /* */
- /* <FuncType> */
- /* TT_Forget_Glyph_Frame_Func */
- /* */
- /* <Description> */
- /* Closes the current loader stream frame for the glyph. */
- /* */
- /* <Input> */
- /* loader :: The current TrueType glyph loader object. */
- /* */
- typedef
- void (*TT_Forget_Glyph_Frame_Func)( TT_Loader* loader );
-
-
-
- /*************************************************************************/
- /* */
- /* TrueType Face Type */
- /* */
- /* <Struct> */
- /* TT_Face */
- /* */
- /* <Description> */
- /* The TrueType face class. These objects model the resolution and */
- /* point-size independent data found in a TrueType font file. */
- /* */
- /* <Fields> */
- /* root :: The base FT_Face structure, managed by the */
- /* base layer. */
- /* */
- /* ttc_header :: The TrueType collection header, used when */
- /* the file is a `ttc' rather than a `ttf'. */
- /* For ordinary font files, the field */
- /* `ttc_header.count' is set to 0. */
- /* */
- /* format_tag :: The font format tag. */
- /* */
- /* num_tables :: The number of TrueType tables in this font */
- /* file. */
- /* */
- /* dir_tables :: The directory of TrueType tables for this */
- /* font file. */
- /* */
- /* header :: The font's font header (`head' table). */
- /* Read on font opening. */
- /* */
- /* horizontal :: The font's horizontal header (`hhea' */
- /* table). This field also contains the */
- /* associated horizontal metrics table */
- /* (`hmtx'). */
- /* */
- /* max_profile :: The font's maximum profile table. Read on */
- /* font opening. Note that some maximum */
- /* values cannot be taken directly from this */
- /* table. We thus define additional fields */
- /* below to hold the computed maxima. */
- /* */
- /* max_components :: The maximum number of glyph components */
- /* required to load any composite glyph from */
- /* this font. Used to size the load stack. */
- /* */
- /* vertical_info :: A boolean which is set when the font file */
- /* contains vertical metrics. If not, the */
- /* value of the `vertical' field is */
- /* undefined. */
- /* */
- /* vertical :: The font's vertical header (`vhea' table). */
- /* This field also contains the associated */
- /* vertical metrics table (`vmtx'), if found. */
- /* IMPORTANT: The contents of this field is */
- /* undefined if the `verticalInfo' field is */
- /* unset. */
- /* */
- /* num_names :: The number of name records within this */
- /* TrueType font. */
- /* */
- /* name_table :: The table of name records (`name'). */
- /* */
- /* os2 :: The font's OS/2 table (`OS/2'). */
- /* */
- /* postscript :: The font's PostScript table (`post' */
- /* table). The PostScript glyph names are */
- /* not loaded by the driver on face opening. */
- /* See the `ttpost' module for more details. */
- /* */
- /* num_charmaps :: The number of character mappings in the */
- /* font. */
- /* */
- /* charmaps :: The array of charmap objects for this font */
- /* file. Note that this field is a typeless */
- /* pointer. The Reason is that the format of */
- /* charmaps varies with the underlying font */
- /* format and cannot be determined here. */
- /* */
- /* goto_table :: A function called by each TrueType table */
- /* loader to position a stream's cursor to */
- /* the start of a given table according to */
- /* its tag. It defaults to TT_Goto_Face but */
- /* can be different for strange formats (e.g. */
- /* Type 42). */
- /* */
- /* access_glyph_frame :: XXX */
- /* */
- /* read_glyph_header :: XXX */
- /* */
- /* read_simple_glyph :: XXX */
- /* */
- /* read_composite_glyph :: XXX */
- /* */
- /* forget_glyph_frame :: XXX */
- /* */
- /* sfnt :: A pointer to the SFNT `driver' interface. */
- /* */
- /* psnames :: A pointer to the `PSNames' module */
- /* interface. */
- /* */
- /* hdmx :: The face's horizontal device metrics */
- /* (`hdmx' table). This table is optional in */
- /* TrueType/OpenType fonts. */
- /* */
- /* gasp :: The grid-fitting and scaling properties */
- /* table (`gasp'). This table is optional in */
- /* TrueType/OpenType fonts. */
- /* */
- /* pclt :: XXX */
- /* */
- /* num_sbit_strikes :: The number of sbit strikes, i.e., bitmap */
- /* sizes, embedded in this font. */
- /* */
- /* sbit_strikes :: An array of sbit strikes embedded in this */
- /* font. This table is optional in a */
- /* TrueType/OpenType font. */
- /* */
- /* num_sbit_scales :: The number of sbit scales for this font. */
- /* */
- /* sbit_scales :: Array of sbit scales embedded in this */
- /* font. This table is optional in a */
- /* TrueType/OpenType font. */
- /* */
- /* postscript_names :: A table used to store the Postscript names */
- /* of the glyphs for this font. See the */
- /* file `ttconfig.h' for comments on the */
- /* TT_CONFIG_OPTION_POSTSCRIPT_NAMES option. */
- /* */
- /* num_locations :: The number of glyph locations in this */
- /* TrueType file. This should be */
- /* identical to the number of glyphs. */
- /* Ignored for Type 2 fonts. */
- /* */
- /* glyph_locations :: An array of longs. These are offsets to */
- /* glyph data within the `glyf' table. */
- /* Ignored for Type 2 font faces. */
- /* */
- /* font_program_size :: Size in bytecodes of the face's font */
- /* program. 0 if none defined. Ignored for */
- /* Type 2 fonts. */
- /* */
- /* font_program :: The face's font program (bytecode stream) */
- /* executed at load time, also used during */
- /* glyph rendering. Comes from the `fpgm' */
- /* table. Ignored for Type 2 font fonts. */
- /* */
- /* cvt_program_size :: The size in bytecodes of the face's cvt */
- /* program. Ignored for Type 2 fonts. */
- /* */
- /* cvt_program :: The face's cvt program (bytecode stream) */
- /* executed each time an instance/size is */
- /* changed/reset. Comes from the `prep' */
- /* table. Ignored for Type 2 fonts. */
- /* */
- /* cvt_size :: Size of the control value table (in */
- /* entries). Ignored for Type 2 fonts. */
- /* */
- /* cvt :: The face's original control value table. */
- /* Coordinates are expressed in unscaled font */
- /* units. Comes from the `cvt ' table. */
- /* Ignored for Type 2 fonts. */
- /* */
- /* num_kern_pairs :: The number of kerning pairs present in the */
- /* font file. The engine only loads the */
- /* first horizontal format 0 kern table it */
- /* finds in the font file. You should use */
- /* the `ttxkern' structures if you want to */
- /* access other kerning tables. Ignored */
- /* for Type 2 fonts. */
- /* */
- /* kern_table_index :: The index of the kerning table in the font */
- /* kerning directory. Only used by the */
- /* ttxkern extension to avoid data */
- /* duplication. Ignored for Type 2 fonts. */
- /* */
- /* interpreter :: A pointer to the TrueType bytecode */
- /* interpreters field is also used to hook */
- /* the debugger in `ttdebug'. */
- /* */
- /* extra :: XXX */
- /* */
- typedef struct TT_FaceRec_
- {
- FT_FaceRec root;
-
- TTC_Header ttc_header;
-
- FT_ULong format_tag;
- FT_UShort num_tables;
- TT_Table* dir_tables;
-
- TT_Header header; /* TrueType header table */
- TT_HoriHeader horizontal; /* TrueType horizontal header */
-
- TT_MaxProfile max_profile;
- FT_ULong max_components;
-
- FT_Bool vertical_info;
- TT_VertHeader vertical; /* TT Vertical header, if present */
-
- FT_Int num_names; /* number of name records */
- TT_NameTable name_table; /* name table */
-
- TT_OS2 os2; /* TrueType OS/2 table */
- TT_Postscript postscript; /* TrueType Postscript table */
-
- FT_Int num_charmaps;
- TT_CharMap charmaps; /* array of TT_CharMapRec */
-
- TT_Goto_Table_Func goto_table;
-
- TT_Access_Glyph_Frame_Func access_glyph_frame;
- TT_Load_Glyph_Element_Func read_glyph_header;
- TT_Load_Glyph_Element_Func read_simple_glyph;
- TT_Load_Glyph_Element_Func read_composite_glyph;
- TT_Forget_Glyph_Frame_Func forget_glyph_frame;
-
- /* a typeless pointer to the SFNT_Interface table used to load */
- /* the basic TrueType tables in the face object */
- void* sfnt;
-
- /* a typeless pointer to the PSNames_Interface table used to */
- /* handle glyph names <-> unicode & Mac values */
- void* psnames;
-
- /***********************************************************************/
- /* */
- /* Optional TrueType/OpenType tables */
- /* */
- /***********************************************************************/
-
- /* horizontal device metrics */
- TT_Hdmx hdmx;
-
- /* grid-fitting and scaling table */
- TT_Gasp gasp; /* the `gasp' table */
-
- /* PCL 5 table */
- TT_PCLT pclt;
-
- /* embedded bitmaps support */
- FT_Int num_sbit_strikes;
- TT_SBit_Strike* sbit_strikes;
-
- FT_Int num_sbit_scales;
- TT_SBit_Scale* sbit_scales;
-
- /* postscript names table */
- TT_Post_Names postscript_names;
-
-
- /***********************************************************************/
- /* */
- /* TrueType-specific fields (ignored by the OTF-Type2 driver) */
- /* */
- /***********************************************************************/
-
- /* the glyph locations */
- FT_UShort num_locations;
- FT_Long* glyph_locations;
-
- /* the font program, if any */
- FT_ULong font_program_size;
- FT_Byte* font_program;
-
- /* the cvt program, if any */
- FT_ULong cvt_program_size;
- FT_Byte* cvt_program;
-
- /* the original, unscaled, control value table */
- FT_ULong cvt_size;
- FT_Short* cvt;
-
- /* the format 0 kerning table, if any */
- FT_Int num_kern_pairs;
- FT_Int kern_table_index;
- TT_Kern_0_Pair* kern_pairs;
-
- /* A pointer to the bytecode interpreter to use. This is also */
- /* used to hook the debugger for the `ttdebug' utility. */
- TT_Interpreter interpreter;
-
-
- /***********************************************************************/
- /* */
- /* Other tables or fields. This is used by derivative formats like */
- /* OpenType. */
- /* */
- /***********************************************************************/
-
- FT_Generic extra;
-
- } TT_FaceRec;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_GlyphZone */
- /* */
- /* <Description> */
- /* A glyph zone is used to load, scale and hint glyph outline */
- /* coordinates. */
- /* */
- /* <Fields> */
- /* memory :: A handle to the memory manager. */
- /* */
- /* max_points :: The maximal size in points of the zone. */
- /* */
- /* max_contours :: Max size in links contours of thez one. */
- /* */
- /* n_points :: The current number of points in the zone. */
- /* */
- /* n_contours :: The current number of contours in the zone. */
- /* */
- /* org :: The original glyph coordinates (font */
- /* units/scaled). */
- /* */
- /* cur :: The current glyph coordinates (scaled/hinted). */
- /* */
- /* tags :: The point control tags. */
- /* */
- /* contours :: The contours end points. */
- /* */
- typedef struct TT_GlyphZone_
- {
- FT_Memory memory;
- FT_UShort max_points;
- FT_UShort max_contours;
- FT_UShort n_points; /* number of points in zone */
- FT_Short n_contours; /* number of contours */
-
- FT_Vector* org; /* original point coordinates */
- FT_Vector* cur; /* current point coordinates */
-
- FT_Byte* tags; /* current touch flags */
- FT_UShort* contours; /* contour end points */
-
- } TT_GlyphZone;
-
-
- /* handle to execution context */
- typedef struct TT_ExecContextRec_* TT_ExecContext;
-
- /* glyph loader structure */
- struct TT_Loader_
- {
- FT_Face face;
- FT_Size size;
- FT_GlyphSlot glyph;
- FT_GlyphLoader* gloader;
-
- FT_ULong load_flags;
- FT_UInt glyph_index;
-
- FT_Stream stream;
- FT_Int byte_len;
-
- FT_Short n_contours;
- FT_BBox bbox;
- FT_Int left_bearing;
- FT_Int advance;
- FT_Bool preserve_pps;
- FT_Vector pp1;
- FT_Vector pp2;
-
- FT_ULong glyf_offset;
-
- /* the zone where we load our glyphs */
- TT_GlyphZone base;
- TT_GlyphZone zone;
-
- TT_ExecContext exec;
- FT_Byte* instructions;
- FT_ULong ins_pos;
-
- /* for possible extensibility in other formats */
- void* other;
-
- };
-
-
-#endif /* TTTYPES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* t1tables.h */
-/* */
-/* Basic Type 1/Type 2 tables definitions and interface (specification */
-/* only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef T1TABLES_H
-#define T1TABLES_H
-
-
-#include <freetype/freetype.h>
-
-
- /* Note that we separate font data in T1_FontInfo and T1_Private */
- /* structures in order to support Multiple Master fonts. */
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* T1_FontInfo */
- /* */
- /* <Description> */
- /* A structure used to model a Type1/Type2 FontInfo dictionary. Note */
- /* that for Multiple Master fonts, each instance has its own */
- /* FontInfo. */
- /* */
- typedef struct T1_FontInfo
- {
- FT_String* version;
- FT_String* notice;
- FT_String* full_name;
- FT_String* family_name;
- FT_String* weight;
- FT_Long italic_angle;
- FT_Bool is_fixed_pitch;
- FT_Short underline_position;
- FT_UShort underline_thickness;
-
- } T1_FontInfo;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* T1_Private */
- /* */
- /* <Description> */
- /* A structure used to model a Type1/Type2 FontInfo dictionary. Note */
- /* that for Multiple Master fonts, each instance has its own Private */
- /* dict. */
- /* */
- typedef struct T1_Private
- {
- FT_Int unique_id;
- FT_Int lenIV;
-
- FT_Byte num_blue_values;
- FT_Byte num_other_blues;
- FT_Byte num_family_blues;
- FT_Byte num_family_other_blues;
-
- FT_Short blue_values[14];
- FT_Short other_blues[10];
-
- FT_Short family_blues [14];
- FT_Short family_other_blues[10];
-
- FT_Fixed blue_scale;
- FT_Int blue_shift;
- FT_Int blue_fuzz;
-
- FT_UShort standard_width[1];
- FT_UShort standard_height[1];
-
- FT_Byte num_snap_widths;
- FT_Byte num_snap_heights;
- FT_Bool force_bold;
- FT_Bool round_stem_up;
-
- FT_Short snap_widths [13]; /* reserve one place for the std */
- FT_Short snap_heights[13]; /* reserve one place for the std */
-
- FT_Long language_group;
- FT_Long password;
-
- FT_Short min_feature[2];
-
- } T1_Private;
-
-
- /*************************************************************************/
- /* */
- /* <Enum> */
- /* T1_Blend_Flags */
- /* */
- /* <Description> */
- /* A set of flags used to indicate which fields are present in a */
- /* given blen dictionary (font info or private). Used to support */
- /* Multiple Masters fonts. */
- /* */
- typedef enum
- {
- /* required fields in a FontInfo blend dictionary */
- t1_blend_underline_position = 0,
- t1_blend_underline_thickness,
- t1_blend_italic_angle,
-
- /* required fields in a Private blend dictionary */
- t1_blend_blue_values,
- t1_blend_other_blues,
- t1_blend_standard_width,
- t1_blend_standard_height,
- t1_blend_stem_snap_widths,
- t1_blend_stem_snap_heights,
- t1_blend_blue_scale,
- t1_blend_blue_shift,
- t1_blend_family_blues,
- t1_blend_family_other_blues,
- t1_blend_force_bold,
-
- /* never remove */
- t1_blend_max
-
- } T1_Blend_Flags;
-
-
- /* maximum number of Multiple Masters designs, as defined in the spec */
-#define T1_MAX_MM_DESIGNS 16
-
- /* maximum number of Multiple Masters axes, as defined in the spec */
-#define T1_MAX_MM_AXIS 4
-
- /* maximum number of elements in a design map */
-#define T1_MAX_MM_MAP_POINTS 20
-
-
- /* this structure is used to store the BlendDesignMap entry for an axis */
- typedef struct T1_DesignMap_
- {
- FT_Byte num_points;
- FT_Fixed* design_points;
- FT_Fixed* blend_points;
-
- } T1_DesignMap;
-
-
- typedef struct T1_Blend_
- {
- FT_UInt num_designs;
- FT_UInt num_axis;
-
- FT_String* axis_names[T1_MAX_MM_AXIS];
- FT_Fixed* design_pos[T1_MAX_MM_DESIGNS];
- T1_DesignMap design_map[T1_MAX_MM_AXIS];
-
- FT_Fixed* weight_vector;
- FT_Fixed* default_weight_vector;
-
- T1_FontInfo* font_infos[T1_MAX_MM_DESIGNS + 1];
- T1_Private* privates [T1_MAX_MM_DESIGNS + 1];
-
- FT_ULong blend_bitflags;
-
- } T1_Blend;
-
-
- typedef struct CID_FontDict_
- {
- T1_Private private_dict;
-
- FT_UInt len_buildchar;
- FT_Fixed forcebold_threshold;
- FT_Pos stroke_width;
- FT_Fixed expansion_factor;
-
- FT_Byte paint_type;
- FT_Byte font_type;
- FT_Matrix font_matrix;
-
- FT_UInt num_subrs;
- FT_ULong subrmap_offset;
- FT_Int sd_bytes;
-
- } CID_FontDict;
-
-
- typedef struct CID_Info_
- {
- FT_String* cid_font_name;
- FT_Fixed cid_version;
- FT_Int cid_font_type;
-
- FT_String* registry;
- FT_String* ordering;
- FT_Int supplement;
-
- T1_FontInfo font_info;
- FT_BBox font_bbox;
- FT_ULong uid_base;
-
- FT_Int num_xuid;
- FT_ULong xuid[16];
-
-
- FT_ULong cidmap_offset;
- FT_Int fd_bytes;
- FT_Int gd_bytes;
- FT_ULong cid_count;
-
- FT_Int num_dicts;
- CID_FontDict* font_dicts;
-
- FT_ULong data_offset;
-
- } CID_Info;
-
-
-#endif /* T1TABLES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* ttmakeid.h */
-/* */
-/* TrueType name ID definitions (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef TTNAMEID_H
-#define TTNAMEID_H
-
-
- /*************************************************************************/
- /* */
- /* Possible values for the `platform' identifier code in the name */
- /* records of the TTF `name' table. */
- /* */
-#define TT_PLATFORM_APPLE_UNICODE 0
-#define TT_PLATFORM_MACINTOSH 1
-#define TT_PLATFORM_ISO 2 /* deprecated */
-#define TT_PLATFORM_MICROSOFT 3
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the platform specific encoding identifier field in */
- /* the name records of the TTF `name' table if the `platform' identifier */
- /* code is TT_PLATFORM_APPLE_UNICODE. */
- /* */
-#define TT_APPLE_ID_DEFAULT 0
-#define TT_APPLE_ID_UNICODE_1_1 1 /* specify Hangul at U+34xx */
-#define TT_APPLE_ID_ISO_10646 2 /* deprecated */
-#define TT_APPLE_ID_UNICODE_2_0 3 /* or later */
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the platform specific encoding identifier field in */
- /* the name records of the TTF `name' table if the `platform' identifier */
- /* code is TT_PLATFORM_MACINTOSH. */
- /* */
-#define TT_MAC_ID_ROMAN 0
-#define TT_MAC_ID_JAPANESE 1
-#define TT_MAC_ID_TRADITIONAL_CHINESE 2
-#define TT_MAC_ID_KOREAN 3
-#define TT_MAC_ID_ARABIC 4
-#define TT_MAC_ID_HEBREW 5
-#define TT_MAC_ID_GREEK 6
-#define TT_MAC_ID_RUSSIAN 7
-#define TT_MAC_ID_RSYMBOL 8
-#define TT_MAC_ID_DEVANAGARI 9
-#define TT_MAC_ID_GURMUKHI 10
-#define TT_MAC_ID_GUJARATI 11
-#define TT_MAC_ID_ORIYA 12
-#define TT_MAC_ID_BENGALI 13
-#define TT_MAC_ID_TAMIL 14
-#define TT_MAC_ID_TELUGU 15
-#define TT_MAC_ID_KANNADA 16
-#define TT_MAC_ID_MALAYALAM 17
-#define TT_MAC_ID_SINHALESE 18
-#define TT_MAC_ID_BURMESE 19
-#define TT_MAC_ID_KHMER 20
-#define TT_MAC_ID_THAI 21
-#define TT_MAC_ID_LAOTIAN 22
-#define TT_MAC_ID_GEORGIAN 23
-#define TT_MAC_ID_ARMENIAN 24
-#define TT_MAC_ID_MALDIVIAN 25
-#define TT_MAC_ID_SIMPLIFIED_CHINESE 25
-#define TT_MAC_ID_TIBETAN 26
-#define TT_MAC_ID_MONGOLIAN 27
-#define TT_MAC_ID_GEEZ 28
-#define TT_MAC_ID_SLAVIC 29
-#define TT_MAC_ID_VIETNAMESE 30
-#define TT_MAC_ID_SINDHI 31
-#define TT_MAC_ID_UNINTERP 32
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the platform specific encoding identifier field in */
- /* the name records of the TTF `name' table if the `platform' identifier */
- /* code is TT_PLATFORM_ISO. */
- /* */
- /* This use is now deprecated. */
- /* */
-#define TT_ISO_ID_7BIT_ASCII 0
-#define TT_ISO_ID_10646 1
-#define TT_ISO_ID_8859_1 2
-
-
- /*************************************************************************/
- /* */
- /* possible values of the platform specific encoding identifier field in */
- /* the name records of the TTF `name' table if the `platform' identifier */
- /* code is TT_PLATFORM_MICROSOFT. */
- /* */
-#define TT_MS_ID_SYMBOL_CS 0
-#define TT_MS_ID_UNICODE_CS 1
-#define TT_MS_ID_SJIS 2
-#define TT_MS_ID_GB2312 3
-#define TT_MS_ID_BIG_5 4
-#define TT_MS_ID_WANSUNG 5
-#define TT_MS_ID_JOHAB 6
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the language identifier field in the name records */
- /* of the TTF `name' table if the `platform' identifier code is */
- /* TT_PLATFORM_MACINTOSH. */
- /* */
- /* The canonical source for the Apple assigned Language ID's is at */
- /* */
- /* http://fonts.apple.com/TTRefMan/RM06/Chap6name.html */
- /* */
-#define TT_MAC_LANGID_ENGLISH 0
-#define TT_MAC_LANGID_FRENCH 1
-#define TT_MAC_LANGID_GERMAN 2
-#define TT_MAC_LANGID_ITALIAN 3
-#define TT_MAC_LANGID_DUTCH 4
-#define TT_MAC_LANGID_SWEDISH 5
-#define TT_MAC_LANGID_SPANISH 6
-#define TT_MAC_LANGID_DANISH 7
-#define TT_MAC_LANGID_PORTUGUESE 8
-#define TT_MAC_LANGID_NORWEGIAN 9
-#define TT_MAC_LANGID_HEBREW 10
-#define TT_MAC_LANGID_JAPANESE 11
-#define TT_MAC_LANGID_ARABIC 12
-#define TT_MAC_LANGID_FINNISH 13
-#define TT_MAC_LANGID_GREEK 14
-#define TT_MAC_LANGID_ICELANDIC 15
-#define TT_MAC_LANGID_MALTESE 16
-#define TT_MAC_LANGID_TURKISH 17
-#define TT_MAC_LANGID_CROATIAN 18
-#define TT_MAC_LANGID_CHINESE_TRADITIONAL 19
-#define TT_MAC_LANGID_URDU 20
-#define TT_MAC_LANGID_HINDI 21
-#define TT_MAC_LANGID_THAI 22
-#define TT_MAC_LANGID_KOREAN 23
-#define TT_MAC_LANGID_LITHUANIAN 24
-#define TT_MAC_LANGID_POLISH 25
-#define TT_MAC_LANGID_HUNGARIAN 26
-#define TT_MAC_LANGID_ESTONIAN 27
-#define TT_MAC_LANGID_LETTISH 28
-#define TT_MAC_LANGID_SAAMISK 29
-#define TT_MAC_LANGID_FAEROESE 30
-#define TT_MAC_LANGID_FARSI 31
-#define TT_MAC_LANGID_RUSSIAN 32
-#define TT_MAC_LANGID_CHINESE_SIMPLIFIED 33
-#define TT_MAC_LANGID_FLEMISH 34
-#define TT_MAC_LANGID_IRISH 35
-#define TT_MAC_LANGID_ALBANIAN 36
-#define TT_MAC_LANGID_ROMANIAN 37
-#define TT_MAC_LANGID_CZECH 38
-#define TT_MAC_LANGID_SLOVAK 39
-#define TT_MAC_LANGID_SLOVENIAN 40
-#define TT_MAC_LANGID_YIDDISH 41
-#define TT_MAC_LANGID_SERBIAN 42
-#define TT_MAC_LANGID_MACEDONIAN 43
-#define TT_MAC_LANGID_BULGARIAN 44
-#define TT_MAC_LANGID_UKRAINIAN 45
-#define TT_MAC_LANGID_BYELORUSSIAN 46
-#define TT_MAC_LANGID_UZBEK 47
-#define TT_MAC_LANGID_KAZAKH 48
-#define TT_MAC_LANGID_AZERBAIJANI 49
-#define TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49
-#define TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50
-#define TT_MAC_LANGID_ARMENIAN 51
-#define TT_MAC_LANGID_GEORGIAN 52
-#define TT_MAC_LANGID_MOLDAVIAN 53
-#define TT_MAC_LANGID_KIRGHIZ 54
-#define TT_MAC_LANGID_TAJIKI 55
-#define TT_MAC_LANGID_TURKMEN 56
-#define TT_MAC_LANGID_MONGOLIAN 57
-#define TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57
-#define TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58
-#define TT_MAC_LANGID_PASHTO 59
-#define TT_MAC_LANGID_KURDISH 60
-#define TT_MAC_LANGID_KASHMIRI 61
-#define TT_MAC_LANGID_SINDHI 62
-#define TT_MAC_LANGID_TIBETAN 63
-#define TT_MAC_LANGID_NEPALI 64
-#define TT_MAC_LANGID_SANSKRIT 65
-#define TT_MAC_LANGID_MARATHI 66
-#define TT_MAC_LANGID_BENGALI 67
-#define TT_MAC_LANGID_ASSAMESE 68
-#define TT_MAC_LANGID_GUJARATI 69
-#define TT_MAC_LANGID_PUNJABI 70
-#define TT_MAC_LANGID_ORIYA 71
-#define TT_MAC_LANGID_MALAYALAM 72
-#define TT_MAC_LANGID_KANNADA 73
-#define TT_MAC_LANGID_TAMIL 74
-#define TT_MAC_LANGID_TELUGU 75
-#define TT_MAC_LANGID_SINHALESE 76
-#define TT_MAC_LANGID_BURMESE 77
-#define TT_MAC_LANGID_KHMER 78
-#define TT_MAC_LANGID_LAO 79
-#define TT_MAC_LANGID_VIETNAMESE 80
-#define TT_MAC_LANGID_INDONESIAN 81
-#define TT_MAC_LANGID_TAGALOG 82
-#define TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83
-#define TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84
-#define TT_MAC_LANGID_AMHARIC 85
-#define TT_MAC_LANGID_TIGRINYA 86
-#define TT_MAC_LANGID_GALLA 87
-#define TT_MAC_LANGID_SOMALI 88
-#define TT_MAC_LANGID_SWAHILI 89
-#define TT_MAC_LANGID_RUANDA 90
-#define TT_MAC_LANGID_RUNDI 91
-#define TT_MAC_LANGID_CHEWA 92
-#define TT_MAC_LANGID_MALAGASY 93
-#define TT_MAC_LANGID_ESPERANTO 94
-#define TT_MAC_LANGID_WELSH 128
-#define TT_MAC_LANGID_BASQUE 129
-#define TT_MAC_LANGID_CATALAN 130
-#define TT_MAC_LANGID_LATIN 131
-#define TT_MAC_LANGID_QUECHUA 132
-#define TT_MAC_LANGID_GUARANI 133
-#define TT_MAC_LANGID_AYMARA 134
-#define TT_MAC_LANGID_TATAR 135
-#define TT_MAC_LANGID_UIGHUR 136
-#define TT_MAC_LANGID_DZONGKHA 137
-#define TT_MAC_LANGID_JAVANESE 138
-#define TT_MAC_LANGID_SUNDANESE 139
-
-
-#if 0 /* these seem to be errors that have been dropped */
-
-#define TT_MAC_LANGID_SCOTTISH_GAELIC 140
-#define TT_MAC_LANGID_IRISH_GAELIC 141
-
-#endif
-
-
- /* The following codes are new as of 2000-03-10 */
-#define TT_MAC_LANGID_GALICIAN 140
-#define TT_MAC_LANGID_AFRIKAANS 141
-#define TT_MAC_LANGID_BRETON 142
-#define TT_MAC_LANGID_INUKTITUT 143
-#define TT_MAC_LANGID_SCOTTISH_GAELIC 144
-#define TT_MAC_LANGID_MANX_GAELIC 145
-#define TT_MAC_LANGID_IRISH_GAELIC 146
-#define TT_MAC_LANGID_TONGAN 147
-#define TT_MAC_LANGID_GREEK_POLYTONIC 148
-#define TT_MAC_LANGID_GREELANDIC 149
-#define TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the language identifier field in the name records */
- /* of the TTF `name' table if the `platform' identifier code is */
- /* TT_PLATFORM_MICROSOFT. */
- /* */
- /* The canonical source for the MS assigned LCID's is at */
- /* */
- /* http://www.microsoft.com/typography/OTSPEC/lcid-cp.txt */
- /* */
-#define TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401
-#define TT_MS_LANGID_ARABIC_IRAQ 0x0801
-#define TT_MS_LANGID_ARABIC_EGYPT 0x0c01
-#define TT_MS_LANGID_ARABIC_LIBYA 0x1001
-#define TT_MS_LANGID_ARABIC_ALGERIA 0x1401
-#define TT_MS_LANGID_ARABIC_MOROCCO 0x1801
-#define TT_MS_LANGID_ARABIC_TUNISIA 0x1c01
-#define TT_MS_LANGID_ARABIC_OMAN 0x2001
-#define TT_MS_LANGID_ARABIC_YEMEN 0x2401
-#define TT_MS_LANGID_ARABIC_SYRIA 0x2801
-#define TT_MS_LANGID_ARABIC_JORDAN 0x2c01
-#define TT_MS_LANGID_ARABIC_LEBANON 0x3001
-#define TT_MS_LANGID_ARABIC_KUWAIT 0x3401
-#define TT_MS_LANGID_ARABIC_UAE 0x3801
-#define TT_MS_LANGID_ARABIC_BAHRAIN 0x3c01
-#define TT_MS_LANGID_ARABIC_QATAR 0x4001
-#define TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402
-#define TT_MS_LANGID_CATALAN_SPAIN 0x0403
-#define TT_MS_LANGID_CHINESE_TAIWAN 0x0404
-#define TT_MS_LANGID_CHINESE_PRC 0x0804
-#define TT_MS_LANGID_CHINESE_HONG_KONG 0x0c04
-#define TT_MS_LANGID_CHINESE_SINGAPORE 0x1004
-#define TT_MS_LANGID_CHINESE_MACAU 0x1404
-#define TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405
-#define TT_MS_LANGID_DANISH_DENMARK 0x0406
-#define TT_MS_LANGID_GERMAN_GERMANY 0x0407
-#define TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807
-#define TT_MS_LANGID_GERMAN_AUSTRIA 0x0c07
-#define TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007
-#define TT_MS_LANGID_GERMAN_LIECHTENSTEI 0x1407
-#define TT_MS_LANGID_GREEK_GREECE 0x0408
-#define TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409
-#define TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809
-#define TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0c09
-#define TT_MS_LANGID_ENGLISH_CANADA 0x1009
-#define TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409
-#define TT_MS_LANGID_ENGLISH_IRELAND 0x1809
-#define TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1c09
-#define TT_MS_LANGID_ENGLISH_JAMAICA 0x2009
-#define TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409
-#define TT_MS_LANGID_ENGLISH_BELIZE 0x2809
-#define TT_MS_LANGID_ENGLISH_TRINIDAD 0x2c09
-#define TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009
-#define TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409
-#define TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040a
-#define TT_MS_LANGID_SPANISH_MEXICO 0x080a
-#define TT_MS_LANGID_SPANISH_SPAIN_INTERNATIONAL_SORT 0x0c0a
-#define TT_MS_LANGID_SPANISH_GUATEMALA 0x100a
-#define TT_MS_LANGID_SPANISH_COSTA_RICA 0x140a
-#define TT_MS_LANGID_SPANISH_PANAMA 0x180a
-#define TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1c0a
-#define TT_MS_LANGID_SPANISH_VENEZUELA 0x200a
-#define TT_MS_LANGID_SPANISH_COLOMBIA 0x240a
-#define TT_MS_LANGID_SPANISH_PERU 0x280a
-#define TT_MS_LANGID_SPANISH_ARGENTINA 0x2c0a
-#define TT_MS_LANGID_SPANISH_ECUADOR 0x300a
-#define TT_MS_LANGID_SPANISH_CHILE 0x340a
-#define TT_MS_LANGID_SPANISH_URUGUAY 0x380a
-#define TT_MS_LANGID_SPANISH_PARAGUAY 0x3c0a
-#define TT_MS_LANGID_SPANISH_BOLIVIA 0x400a
-#define TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440a
-#define TT_MS_LANGID_SPANISH_HONDURAS 0x480a
-#define TT_MS_LANGID_SPANISH_NICARAGUA 0x4c0a
-#define TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500a
-#define TT_MS_LANGID_FINNISH_FINLAND 0x040b
-#define TT_MS_LANGID_FRENCH_FRANCE 0x040c
-#define TT_MS_LANGID_FRENCH_BELGIUM 0x080c
-#define TT_MS_LANGID_FRENCH_CANADA 0x0c0c
-#define TT_MS_LANGID_FRENCH_SWITZERLAND 0x100c
-#define TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140c
-#define TT_MS_LANGID_FRENCH_MONACO 0x180c
-#define TT_MS_LANGID_HEBREW_ISRAEL 0x040d
-#define TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040e
-#define TT_MS_LANGID_ICELANDIC_ICELAND 0x040f
-#define TT_MS_LANGID_ITALIAN_ITALY 0x0410
-#define TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810
-#define TT_MS_LANGID_JAPANESE_JAPAN 0x0411
-#define TT_MS_LANGID_KOREAN_EXTENDED_WANSUNG_KOREA 0x0412
-#define TT_MS_LANGID_KOREAN_JOHAB_KOREA 0x0812
-#define TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413
-#define TT_MS_LANGID_DUTCH_BELGIUM 0x0813
-#define TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414
-#define TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814
-#define TT_MS_LANGID_POLISH_POLAND 0x0415
-#define TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416
-#define TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816
-#define TT_MS_LANGID_RHAETO_ROMANIC_SWITZERLAND 0x0417
-#define TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418
-#define TT_MS_LANGID_MOLDAVIAN_MOLDAVIA 0x0818
-#define TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419
-#define TT_MS_LANGID_RUSSIAN_MOLDAVIA 0x0819
-#define TT_MS_LANGID_CROATIAN_CROATIA 0x041a
-#define TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081a
-#define TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0c1a
-#define TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041b
-#define TT_MS_LANGID_ALBANIAN_ALBANIA 0x041c
-#define TT_MS_LANGID_SWEDISH_SWEDEN 0x041d
-#define TT_MS_LANGID_SWEDISH_FINLAND 0x081d
-#define TT_MS_LANGID_THAI_THAILAND 0x041e
-#define TT_MS_LANGID_TURKISH_TURKEY 0x041f
-#define TT_MS_LANGID_URDU_PAKISTAN 0x0420
-#define TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421
-#define TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422
-#define TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423
-#define TT_MS_LANGID_SLOVENE_SLOVENIA 0x0424
-#define TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425
-#define TT_MS_LANGID_LATVIAN_LATVIA 0x0426
-#define TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427
-#define TT_MS_LANGID_CLASSIC_LITHUANIAN_LITHUANIA 0x0827
-#define TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0428
-#define TT_MS_LANGID_FARSI_IRAN 0x0429
-#define TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042a
-#define TT_MS_LANGID_ARMENIAN_ARMENIA 0x042b
-#define TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042c
-#define TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082c
-#define TT_MS_LANGID_BASQUE_SPAIN 0x042d
-#define TT_MS_LANGID_SORBIAN_GERMANY 0x042e
-#define TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042f
-#define TT_MS_LANGID_SUTU_SOUTH_AFRICA 0x0430
-#define TT_MS_LANGID_TSONGA_SOUTH_AFRICA 0x0431
-#define TT_MS_LANGID_TSWANA_SOUTH_AFRICA 0x0432
-#define TT_MS_LANGID_VENDA_SOUTH_AFRICA 0x0433
-#define TT_MS_LANGID_XHOSA_SOUTH_AFRICA 0x0434
-#define TT_MS_LANGID_ZULU_SOUTH_AFRICA 0x0435
-#define TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436
-#define TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437
-#define TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438
-#define TT_MS_LANGID_HINDI_INDIA 0x0439
-#define TT_MS_LANGID_MALTESE_MALTA 0x043a
-#define TT_MS_LANGID_SAAMI_LAPONIA 0x043b
-#define TT_MS_LANGID_IRISH_GAELIC_IRELAND 0x043c
-#define TT_MS_LANGID_SCOTTISH_GAELIC_UNITED_KINGDOM 0x083c
-#define TT_MS_LANGID_MALAY_MALAYSIA 0x043e
-#define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083e
-#define TT_MS_LANGID_KAZAK_KAZAKSTAN 0x043f
-#define TT_MS_LANGID_SWAHILI_KENYA 0x0441
-#define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443
-#define TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843
-#define TT_MS_LANGID_TATAR_TATARSTAN 0x0444
-#define TT_MS_LANGID_BENGALI_INDIA 0x0445
-#define TT_MS_LANGID_PUNJABI_INDIA 0x0446
-#define TT_MS_LANGID_GUJARATI_INDIA 0x0447
-#define TT_MS_LANGID_ORIYA_INDIA 0x0448
-#define TT_MS_LANGID_TAMIL_INDIA 0x0449
-#define TT_MS_LANGID_TELUGU_INDIA 0x044a
-#define TT_MS_LANGID_KANNADA_INDIA 0x044b
-#define TT_MS_LANGID_MALAYALAM_INDIA 0x044c
-#define TT_MS_LANGID_ASSAMESE_INDIA 0x044d
-#define TT_MS_LANGID_MARATHI_INDIA 0x044e
-#define TT_MS_LANGID_SANSKRIT_INDIA 0x044f
-#define TT_MS_LANGID_KONKANI_INDIA 0x0457
-
-
- /*************************************************************************/
- /* */
- /* Possible values of the `name' identifier field in the name records of */
- /* the TTF `name' table. These values are platform independent. */
- /* */
-#define TT_NAME_ID_COPYRIGHT 0
-#define TT_NAME_ID_FONT_FAMILY 1
-#define TT_NAME_ID_FONT_SUBFAMILY 2
-#define TT_NAME_ID_UNIQUE_ID 3
-#define TT_NAME_ID_FULL_NAME 4
-#define TT_NAME_ID_VERSION_STRING 5
-#define TT_NAME_ID_PS_NAME 6
-#define TT_NAME_ID_TRADEMARK 7
-
-/* the following values are from the OpenType spec */
-#define TT_NAME_ID_MANUFACTURER 8
-#define TT_NAME_ID_DESIGNER 9
-#define TT_NAME_ID_DESCRIPTION 10
-#define TT_NAME_ID_VENDOR_URL 11
-#define TT_NAME_ID_DESIGNER_URL 12
-#define TT_NAME_ID_LICENSE 13
-#define TT_NAME_ID_LICENSE_URL 14
-/* number 15 is reserved */
-#define TT_NAME_ID_PREFERRED_FAMILY 16
-#define TT_NAME_ID_PREFERRED_SUBFAMILY 17
-#define TT_NAME_ID_MAC_FULL_NAME 18
-
-/* The following code is new as of 2000-01-21 */
-#define TT_NAME_ID_SAMPLE_TEXT 19
-
-
- /*************************************************************************/
- /* */
- /* Bit mask values for the Unicode Ranges from the TTF `OS2 ' table. */
- /* */
- /* Updated 02-Jul-2000. */
- /* */
-
- /* General Scripts Area */
-
- /* Bit 0 C0 Controls and Basic Latin */
-#define TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */
- /* Bit 1 C1 Controls and Latin-1 Supplement */
-#define TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+00A0-U+00FF */
- /* Bit 2 Latin Extended-A */
-#define TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */
- /* Bit 3 Latin Extended-B */
-#define TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */
- /* Bit 4 IPA Extensions */
-#define TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */
- /* Bit 5 Spacing Modifier Letters */
-#define TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */
- /* Bit 6 Combining Diacritical Marks */
-#define TT_UCR_COMBINING_DIACRITICS (1L << 6) /* U+0300-U+036F */
- /* Bit 7 Greek */
-#define TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */
- /* Bit 8 is reserved (was: Greek Symbols and Coptic) */
- /* Bit 9 Cyrillic */
-#define TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */
- /* Bit 10 Armenian */
-#define TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */
- /* Bit 11 Hebrew */
-#define TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */
- /* Bit 12 is reserved (was: Hebrew Extended) */
- /* Bit 13 Arabic */
-#define TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */
- /* Bit 14 is reserved (was: Arabic Extended) */
- /* Bit 15 Devanagari */
-#define TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */
- /* Bit 16 Bengali */
-#define TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */
- /* Bit 17 Gurmukhi */
-#define TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */
- /* Bit 18 Gujarati */
-#define TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */
- /* Bit 19 Oriya */
-#define TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */
- /* Bit 20 Tamil */
-#define TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */
- /* Bit 21 Telugu */
-#define TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */
- /* Bit 22 Kannada */
-#define TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */
- /* Bit 23 Malayalam */
-#define TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */
- /* Bit 24 Thai */
-#define TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */
- /* Bit 25 Lao */
-#define TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */
- /* Bit 26 Georgian */
-#define TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */
- /* Bit 27 is reserved (was Georgian Extended) */
- /* Bit 28 Hangul Jamo */
-#define TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */
- /* Bit 29 Latin Extended Additional */
-#define TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */
- /* Bit 30 Greek Extended */
-#define TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */
-
- /* Symbols Area */
-
- /* Bit 31 General Punctuation */
-#define TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */
- /* Bit 32 Superscripts And Subscripts */
-#define TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */
- /* Bit 33 Currency Symbols */
-#define TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */
- /* Bit 34 Combining Diacritical Marks For Symbols */
-#define TT_UCR_COMBINING_DIACRITICS_SYMB (1L << 2) /* U+20D0-U+20FF */
- /* Bit 35 Letterlike Symbols */
-#define TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */
- /* Bit 36 Number Forms */
-#define TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */
- /* Bit 37 Arrows */
-#define TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */
- /* Bit 38 Mathematical Operators */
-#define TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */
- /* Bit 39 Miscellaneous Technical */
-#define TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */
- /* Bit 40 Control Pictures */
-#define TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */
- /* Bit 41 Optical Character Recognition */
-#define TT_UCR_OCR (1L << 9) /* U+2440-U+245F */
- /* Bit 42 Enclosed Alphanumerics */
-#define TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */
- /* Bit 43 Box Drawing */
-#define TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */
- /* Bit 44 Block Elements */
-#define TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */
- /* Bit 45 Geometric Shapes */
-#define TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */
- /* Bit 46 Miscellaneous Symbols */
-#define TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */
- /* Bit 47 Dingbats */
-#define TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */
-
- /* CJK Phonetics and Symbols Area */
-
- /* Bit 48 CJK Symbols And Punctuation */
-#define TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */
- /* Bit 49 Hiragana */
-#define TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */
- /* Bit 50 Katakana */
-#define TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */
- /* Bit 51 Bopomofo + Extended Bopomofo */
-#define TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */
- /* U+31A0-U+31BF */
- /* Bit 52 Hangul Compatibility Jamo */
-#define TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */
- /* Bit 53 CJK Miscellaneous */
-#define TT_UCR_CJK_MISC (1L << 21) /* U+3190-U+319F */
- /* Bit 54 Enclosed CJK Letters And Months */
-#define TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */
- /* Bit 55 CJK Compatibility */
-#define TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */
-
- /* Hangul Syllables Area */
-
- /* Bit 56 Hangul */
-#define TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */
-
- /* Surrogates Area */
-
- /* Bit 57 Surrogates */
-#define TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DFFF */
- /* Bit 58 is reserved for Unicode SubRanges */
-
- /* CJK Ideographs Area */
-
- /* Bit 59 CJK Unified Ideographs + */
- /* CJK Radical Supplement + */
- /* Kangxi Radicals + */
- /* Ideographic Description + */
- /* CJK Unified Ideographs Extension A */
-#define TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */
- /* U+2E80-U+2EFF */
- /* U+2F00-U+2FDF */
- /* U+2FF0-U+2FFF */
- /* U+34E0-U+4DB5 */
-
- /* Private Use Area */
-
- /* Bit 60 Private Use */
-#define TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */
-
- /* Compatibility Area and Specials */
-
- /* Bit 61 CJK Compatibility Ideographs */
-#define TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+F900-U+FAFF */
- /* Bit 62 Alphabetic Presentation Forms */
-#define TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */
- /* Bit 63 Arabic Presentation Forms-A */
-#define TT_UCR_ARABIC_PRESENTATIONS_A (1L << 31) /* U+FB50-U+FDFF */
- /* Bit 64 Combining Half Marks */
-#define TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */
- /* Bit 65 CJK Compatibility Forms */
-#define TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE30-U+FE4F */
- /* Bit 66 Small Form Variants */
-#define TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */
- /* Bit 67 Arabic Presentation Forms-B */
-#define TT_UCR_ARABIC_PRESENTATIONS_B (1L << 3) /* U+FE70-U+FEFE */
- /* Bit 68 Halfwidth And Fullwidth Forms */
-#define TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */
- /* Bit 69 Specials */
-#define TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */
- /* Bit 70 Tibetan */
-#define TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FCF */
- /* Bit 71 Syriac */
-#define TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */
- /* Bit 72 Thaana */
-#define TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */
- /* Bit 73 Sinhala */
-#define TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */
- /* Bit 74 Myanmar */
-#define TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */
- /* Bit 75 Ethiopic */
-#define TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+12BF */
- /* Bit 76 Cherokee */
-#define TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */
- /* Bit 77 Canadian Aboriginal Syllabics */
-#define TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+14DF */
- /* Bit 78 Ogham */
-#define TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */
- /* Bit 79 Runic */
-#define TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */
- /* Bit 80 Khmer */
-#define TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */
- /* Bit 81 Mongolian */
-#define TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */
- /* Bit 82 Braille */
-#define TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */
- /* Bit 83 Yi + Yi Radicals */
-#define TT_UCR_YI (1L << 19) /* U+A000-U+A48C */
- /* U+A490-U+A4CF */
-
-
- /*************************************************************************/
- /* */
- /* Some compilers have a very limited length of identifiers. */
- /* */
-#if defined( __TURBOC__ ) && __TURBOC__ < 0x0410 || defined( __PACIFIC__ )
-#define HAVE_LIMIT_ON_IDENTS
-#endif
-
-
-#ifndef HAVE_LIMIT_ON_IDENTS
-
-
- /*************************************************************************/
- /* */
- /* Here some alias #defines in order to be clearer. */
- /* */
- /* These are not always #defined to stay within the 31 character limit */
- /* which some compilers have. */
- /* */
- /* Credits go to Dave Hoo <dhoo@flash.net> for pointing out that modern */
- /* Borland compilers (read: from BC++ 3.1 on) can increase this limit. */
- /* If you get a warning with such a compiler, use the -i40 switch. */
- /* */
-#define TT_UCR_ARABIC_PRESENTATION_FORMS_A \
- TT_UCR_ARABIC_PRESENTATIONS_A
-#define TT_UCR_ARABIC_PRESENTATION_FORMS_B \
- TT_UCR_ARABIC_PRESENTATIONS_B
-
-#define TT_UCR_COMBINING_DIACRITICAL_MARKS \
- TT_UCR_COMBINING_DIACRITICS
-#define TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \
- TT_UCR_COMBINING_DIACRITICS_SYMB
-
-
-#endif /* !HAVE_LIMIT_ON_IDENTS */
-
-
-#endif /* TTNAMEID_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* tttables.h */
-/* */
-/* Basic SFNT/TrueType tables definitions and interface */
-/* (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef TTTABLES_H
-#define TTTABLES_H
-
-
-#include <freetype/freetype.h>
-
-
-#ifdef __cplusplus
- extern "C" {
-#endif
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Header */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType font header table. All */
- /* fields follow the TrueType specification. */
- /* */
- typedef struct TT_Header_
- {
- FT_Fixed Table_Version;
- FT_Fixed Font_Revision;
-
- FT_Long CheckSum_Adjust;
- FT_Long Magic_Number;
-
- FT_UShort Flags;
- FT_UShort Units_Per_EM;
-
- FT_Long Created [2];
- FT_Long Modified[2];
-
- FT_Short xMin;
- FT_Short yMin;
- FT_Short xMax;
- FT_Short yMax;
-
- FT_UShort Mac_Style;
- FT_UShort Lowest_Rec_PPEM;
-
- FT_Short Font_Direction;
- FT_Short Index_To_Loc_Format;
- FT_Short Glyph_Data_Format;
-
- } TT_Header;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_HoriHeader */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType horizontal header, the `hhea' */
- /* table, as well as the corresponding horizontal metrics table, */
- /* i.e., the `hmtx' table. */
- /* */
- /* <Fields> */
- /* Version :: The table version. */
- /* */
- /* Ascender :: The font's ascender, i.e., the distance */
- /* from the baseline to the top-most of all */
- /* glyph points found in the font. */
- /* */
- /* This value is invalid in many fonts, as */
- /* it is usually set by the font designer, */
- /* and often reflects only a portion of the */
- /* glyphs found in the font (maybe ASCII). */
- /* */
- /* You should use the `sTypoAscender' field */
- /* of the OS/2 table instead if you want */
- /* the correct one. */
- /* */
- /* Descender :: The font's descender, i.e., the distance */
- /* from the baseline to the bottom-most of */
- /* all glyph points found in the font. It */
- /* is negative. */
- /* */
- /* This value is invalid in many fonts, as */
- /* it is usually set by the font designer, */
- /* and often reflects only a portion of the */
- /* glyphs found in the font (maybe ASCII). */
- /* */
- /* You should use the `sTypoDescender' */
- /* field of the OS/2 table instead if you */
- /* want the correct one. */
- /* */
- /* Line_Gap :: The font's line gap, i.e., the distance */
- /* to add to the ascender and descender to */
- /* get the BTB, i.e., the */
- /* baseline-to-baseline distance for the */
- /* font. */
- /* */
- /* advance_Width_Max :: This field is the maximum of all advance */
- /* widths found in the font. It can be */
- /* used to compute the maximum width of an */
- /* arbitrary string of text. */
- /* */
- /* min_Left_Side_Bearing :: The minimum left side bearing of all */
- /* glyphs within the font. */
- /* */
- /* min_Right_Side_Bearing :: The minimum right side bearing of all */
- /* glyphs within the font. */
- /* */
- /* xMax_Extent :: The maximum horizontal extent (i.e., the */
- /* `width' of a glyph's bounding box) for */
- /* all glyphs in the font. */
- /* */
- /* caret_Slope_Rise :: The rise coefficient of the cursor's */
- /* slope of the cursor (slope=rise/run). */
- /* */
- /* caret_Slope_Run :: The run coefficient of the cursor's */
- /* slope. */
- /* */
- /* Reserved :: 10 reserved bytes. */
- /* */
- /* metric_Data_Format :: Always 0. */
- /* */
- /* number_Of_HMetrics :: Number of HMetrics entries in the `hmtx' */
- /* table -- this value can be smaller than */
- /* the total number of glyphs in the font. */
- /* */
- /* long_metrics :: A pointer into the `hmtx' table. */
- /* */
- /* short_metrics :: A pointer into the `hmtx' table. */
- /* */
- /* <Note> */
- /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
- /* be identical except for the names of their fields which */
- /* are different. */
- /* */
- /* This ensures that a single function in the `ttload' */
- /* module is able to read both the horizontal and vertical */
- /* headers. */
- /* */
- typedef struct TT_HoriHeader_
- {
- FT_Fixed Version;
- FT_Short Ascender;
- FT_Short Descender;
- FT_Short Line_Gap;
-
- FT_UShort advance_Width_Max; /* advance width maximum */
-
- FT_Short min_Left_Side_Bearing; /* minimum left-sb */
- FT_Short min_Right_Side_Bearing; /* minimum right-sb */
- FT_Short xMax_Extent; /* xmax extents */
- FT_Short caret_Slope_Rise;
- FT_Short caret_Slope_Run;
- FT_Short caret_Offset;
-
- FT_Short Reserved[4];
-
- FT_Short metric_Data_Format;
- FT_UShort number_Of_HMetrics;
-
- /* The following fields are not defined by the TrueType specification */
- /* but they're used to connect the metrics header to the relevant */
- /* `HMTX' table. */
-
- void* long_metrics;
- void* short_metrics;
-
- } TT_HoriHeader;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_VertHeader */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType vertical header, the `vhea' */
- /* table, as well as the corresponding vertical metrics table, i.e., */
- /* the `vmtx' table. */
- /* */
- /* <Fields> */
- /* Version :: The table version. */
- /* */
- /* Ascender :: The font's ascender, i.e., the distance */
- /* from the baseline to the top-most of */
- /* all glyph points found in the font. */
- /* */
- /* This value is invalid in many fonts, as */
- /* it is usually set by the font designer, */
- /* and often reflects only a portion of */
- /* the glyphs found in the font (maybe */
- /* ASCII). */
- /* */
- /* You should use the `sTypoAscender' */
- /* field of the OS/2 table instead if you */
- /* want the correct one. */
- /* */
- /* Descender :: The font's descender, i.e., the */
- /* distance from the baseline to the */
- /* bottom-most of all glyph points found */
- /* in the font. It is negative. */
- /* */
- /* This value is invalid in many fonts, as */
- /* it is usually set by the font designer, */
- /* and often reflects only a portion of */
- /* the glyphs found in the font (maybe */
- /* ASCII). */
- /* */
- /* You should use the `sTypoDescender' */
- /* field of the OS/2 table instead if you */
- /* want the correct one. */
- /* */
- /* Line_Gap :: The font's line gap, i.e., the distance */
- /* to add to the ascender and descender to */
- /* get the BTB, i.e., the */
- /* baseline-to-baseline distance for the */
- /* font. */
- /* */
- /* advance_Height_Max :: This field is the maximum of all */
- /* advance heights found in the font. It */
- /* can be used to compute the maximum */
- /* height of an arbitrary string of text. */
- /* */
- /* min_Top_Side_Bearing :: The minimum top side bearing of all */
- /* glyphs within the font. */
- /* */
- /* min_Bottom_Side_Bearing :: The minimum bottom side bearing of all */
- /* glyphs within the font. */
- /* */
- /* yMax_Extent :: The maximum vertical extent (i.e., the */
- /* `height' of a glyph's bounding box) for */
- /* all glyphs in the font. */
- /* */
- /* caret_Slope_Rise :: The rise coefficient of the cursor's */
- /* slope of the cursor (slope=rise/run). */
- /* */
- /* caret_Slope_Run :: The run coefficient of the cursor's */
- /* slope. */
- /* */
- /* Reserved :: 10 reserved bytes. */
- /* */
- /* metric_Data_Format :: Always 0. */
- /* */
- /* number_Of_HMetrics :: Number of VMetrics entries in the */
- /* `vmtx' table -- this value can be */
- /* smaller than the total number of glyphs */
- /* in the font. */
- /* */
- /* long_metrics :: A pointer into the `vmtx' table. */
- /* */
- /* short_metrics :: A pointer into the `vmtx' table. */
- /* */
- /* <Note> */
- /* IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should */
- /* be identical except for the names of their fields which */
- /* are different. */
- /* */
- /* This ensures that a single function in the `ttload' */
- /* module is able to read both the horizontal and vertical */
- /* headers. */
- /* */
- typedef struct TT_VertHeader_
- {
- FT_Fixed Version;
- FT_Short Ascender;
- FT_Short Descender;
- FT_Short Line_Gap;
-
- FT_UShort advance_Height_Max; /* advance height maximum */
-
- FT_Short min_Top_Side_Bearing; /* minimum left-sb or top-sb */
- FT_Short min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb */
- FT_Short yMax_Extent; /* xmax or ymax extents */
- FT_Short caret_Slope_Rise;
- FT_Short caret_Slope_Run;
- FT_Short caret_Offset;
-
- FT_Short Reserved[4];
-
- FT_Short metric_Data_Format;
- FT_UShort number_Of_VMetrics;
-
- /* The following fields are not defined by the TrueType specification */
- /* but they're used to connect the metrics header to the relevant */
- /* `HMTX' or `VMTX' table. */
-
- void* long_metrics;
- void* short_metrics;
-
- } TT_VertHeader;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_OS2 */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType OS/2 table. This is the long */
- /* table version. All fields comply to the TrueType specification. */
- /* */
- /* Note that we now support old Mac fonts which do not include an */
- /* OS/2 table. In this case, the `version' field is always set to */
- /* 0xFFFF. */
- /* */
- typedef struct TT_OS2_
- {
- FT_UShort version; /* 0x0001 - more or 0xFFFF */
- FT_Short xAvgCharWidth;
- FT_UShort usWeightClass;
- FT_UShort usWidthClass;
- FT_Short fsType;
- FT_Short ySubscriptXSize;
- FT_Short ySubscriptYSize;
- FT_Short ySubscriptXOffset;
- FT_Short ySubscriptYOffset;
- FT_Short ySuperscriptXSize;
- FT_Short ySuperscriptYSize;
- FT_Short ySuperscriptXOffset;
- FT_Short ySuperscriptYOffset;
- FT_Short yStrikeoutSize;
- FT_Short yStrikeoutPosition;
- FT_Short sFamilyClass;
-
- FT_Byte panose[10];
-
- FT_ULong ulUnicodeRange1; /* Bits 0-31 */
- FT_ULong ulUnicodeRange2; /* Bits 32-63 */
- FT_ULong ulUnicodeRange3; /* Bits 64-95 */
- FT_ULong ulUnicodeRange4; /* Bits 96-127 */
-
- FT_Char achVendID[4];
-
- FT_UShort fsSelection;
- FT_UShort usFirstCharIndex;
- FT_UShort usLastCharIndex;
- FT_Short sTypoAscender;
- FT_Short sTypoDescender;
- FT_Short sTypoLineGap;
- FT_UShort usWinAscent;
- FT_UShort usWinDescent;
-
- /* only version 1 tables: */
-
- FT_ULong ulCodePageRange1; /* Bits 0-31 */
- FT_ULong ulCodePageRange2; /* Bits 32-63 */
-
- /* only version 2 tables: */
-
- FT_Short sxHeight;
- FT_Short sCapHeight;
- FT_UShort usDefaultChar;
- FT_UShort usBreakChar;
- FT_UShort usMaxContext;
-
- } TT_OS2;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_Postscript */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType Postscript table. All fields */
- /* comply to the TrueType table. This structure does not reference */
- /* the Postscript glyph names, which can be nevertheless accessed */
- /* with the `ttpost' module. */
- /* */
- typedef struct TT_Postscript_
- {
- FT_Fixed FormatType;
- FT_Fixed italicAngle;
- FT_Short underlinePosition;
- FT_Short underlineThickness;
- FT_ULong isFixedPitch;
- FT_ULong minMemType42;
- FT_ULong maxMemType42;
- FT_ULong minMemType1;
- FT_ULong maxMemType1;
-
- /* Glyph names follow in the file, but we don't */
- /* load them by default. See the ttpost.c file. */
-
- } TT_Postscript;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_PCLT */
- /* */
- /* <Description> */
- /* A structure used to model a TrueType PCLT table. All fields */
- /* comply to the TrueType table. */
- /* */
- typedef struct TT_PCLT_
- {
- FT_Fixed Version;
- FT_ULong FontNumber;
- FT_UShort Pitch;
- FT_UShort xHeight;
- FT_UShort Style;
- FT_UShort TypeFamily;
- FT_UShort CapHeight;
- FT_UShort SymbolSet;
- FT_Char TypeFace[16];
- FT_Char CharacterComplement[8];
- FT_Char FileName[6];
- FT_Char StrokeWeight;
- FT_Char WidthType;
- FT_Byte SerifStyle;
- FT_Byte Reserved;
-
- } TT_PCLT;
-
-
- /*************************************************************************/
- /* */
- /* <Struct> */
- /* TT_MaxProfile */
- /* */
- /* <Description> */
- /* The maximum profile is a table containing many max values which */
- /* can be used to pre-allocate arrays. This ensures that no memory */
- /* allocation occurs during a glyph load. */
- /* */
- /* <Fields> */
- /* version :: The version number. */
- /* */
- /* numGlyphs :: The number of glyphs in this TrueType */
- /* font. */
- /* */
- /* maxPoints :: The maximum number of points in a */
- /* non-composite TrueType glyph. See also */
- /* the structure element */
- /* `maxCompositePoints'. */
- /* */
- /* maxContours :: The maximum number of contours in a */
- /* non-composite TrueType glyph. See also */
- /* the structure element */
- /* `maxCompositeContours'. */
- /* */
- /* maxCompositePoints :: The maximum number of points in a */
- /* composite TrueType glyph. See also the */
- /* structure element `maxPoints'. */
- /* */
- /* maxCompositeContours :: The maximum number of contours in a */
- /* composite TrueType glyph. See also the */
- /* structure element `maxContours'. */
- /* */
- /* maxZones :: The maximum number of zones used for */
- /* glyph hinting. */
- /* */
- /* maxTwilightPoints :: The maximum number of points in the */
- /* twilight zone used for glyph hinting. */
- /* */
- /* maxStorage :: The maximum number of elements in the */
- /* storage area used for glyph hinting. */
- /* */
- /* maxFunctionDefs :: The maximum number of function */
- /* definitions in the TrueType bytecode for */
- /* this font. */
- /* */
- /* maxInstructionDefs :: The maximum number of instruction */
- /* definitions in the TrueType bytecode for */
- /* this font. */
- /* */
- /* maxStackElements :: The maximum number of stack elements used */
- /* during bytecode interpretation. */
- /* */
- /* maxSizeOfInstructions :: The maximum number of TrueType opcodes */
- /* used for glyph hinting. */
- /* */
- /* maxComponentElements :: An obscure value related to composite */
- /* glyphs definitions. */
- /* */
- /* maxComponentDepth :: An obscure value related to composite */
- /* glyphs definitions. Probably the maximum */
- /* number of simple glyphs in a composite. */
- /* */
- /* <Note> */
- /* This structure is only used during font loading. */
- /* */
- typedef struct TT_MaxProfile_
- {
- FT_Fixed version;
- FT_UShort numGlyphs;
- FT_UShort maxPoints;
- FT_UShort maxContours;
- FT_UShort maxCompositePoints;
- FT_UShort maxCompositeContours;
- FT_UShort maxZones;
- FT_UShort maxTwilightPoints;
- FT_UShort maxStorage;
- FT_UShort maxFunctionDefs;
- FT_UShort maxInstructionDefs;
- FT_UShort maxStackElements;
- FT_UShort maxSizeOfInstructions;
- FT_UShort maxComponentElements;
- FT_UShort maxComponentDepth;
-
- } TT_MaxProfile;
-
-
- typedef enum
- {
- ft_sfnt_head = 0,
- ft_sfnt_maxp = 1,
- ft_sfnt_os2 = 2,
- ft_sfnt_hhea = 3,
- ft_sfnt_vhea = 4,
- ft_sfnt_post = 5,
- ft_sfnt_pclt = 6,
-
- sfnt_max /* don't remove */
-
- } FT_Sfnt_Tag;
-
-
- /* internal use only */
- typedef void* (*FT_Get_Sfnt_Table_Func)( FT_Face face,
- FT_Sfnt_Tag tag );
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* FT_Get_Sfnt_Table */
- /* */
- /* <Description> */
- /* Returns a pointer to a given SFNT table within a face. */
- /* */
- /* <Input> */
- /* face :: A handle to the source. */
- /* */
- /* tag :: The index of the SFNT table. */
- /* */
- /* <Return> */
- /* A type-less pointer to the table. This will be 0 in case of */
- /* error, or if the corresponding table was not found *OR* loaded */
- /* from the file. */
- /* */
- /* <Note> */
- /* The table is owned by the face object and disappears with it. */
- /* */
- /* This function is only useful to access SFNT tables that are loaded */
- /* by the sfnt/truetype/opentype drivers. See FT_Sfnt_tag for a */
- /* list. */
- /* */
- /* You can load any table using the (internal) SFNT_Interface */
- /* structure -- this is available via FT_Get_Module_Interface(). */
- /* */
- FT_EXPORT_DEF( void* ) FT_Get_Sfnt_Table( FT_Face face,
- FT_Sfnt_Tag tag );
-
-#ifdef __cplusplus
- }
-#endif
-
-
-#endif /* TTTABLES_H */
-
-
-/* END */
+++ /dev/null
-/***************************************************************************/
-/* */
-/* tttags.h */
-/* */
-/* Tags for TrueType tables (specification only). */
-/* */
-/* Copyright 1996-2000 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#ifndef TTAGS_H
-#define TTAGS_H
-
-
-#include <freetype/freetype.h> /* for MAKE_TT_TAG() */
-
-
-#define TTAG_cmap FT_MAKE_TAG( 'c', 'm', 'a', 'p' )
-#define TTAG_cvt FT_MAKE_TAG( 'c', 'v', 't', ' ' )
-#define TTAG_CFF FT_MAKE_TAG( 'C', 'F', 'F', ' ' )
-#define TTAG_DSIG FT_MAKE_TAG( 'D', 'S', 'I', 'G' )
-#define TTAG_bdat FT_MAKE_TAG( 'b', 'd', 'a', 't' )
-#define TTAG_bloc FT_MAKE_TAG( 'b', 'l', 'o', 'c' )
-#define TTAG_EBDT FT_MAKE_TAG( 'E', 'B', 'D', 'T' )
-#define TTAG_EBLC FT_MAKE_TAG( 'E', 'B', 'L', 'C' )
-#define TTAG_EBSC FT_MAKE_TAG( 'E', 'B', 'S', 'C' )
-#define TTAG_fpgm FT_MAKE_TAG( 'f', 'p', 'g', 'm' )
-#define TTAG_fvar FT_MAKE_TAG( 'f', 'v', 'a', 'r' )
-#define TTAG_gasp FT_MAKE_TAG( 'g', 'a', 's', 'p' )
-#define TTAG_glyf FT_MAKE_TAG( 'g', 'l', 'y', 'f' )
-#define TTAG_GSUB FT_MAKE_TAG( 'G', 'S', 'U', 'B' )
-#define TTAG_hdmx FT_MAKE_TAG( 'h', 'd', 'm', 'x' )
-#define TTAG_head FT_MAKE_TAG( 'h', 'e', 'a', 'd' )
-#define TTAG_hhea FT_MAKE_TAG( 'h', 'h', 'e', 'a' )
-#define TTAG_hmtx FT_MAKE_TAG( 'h', 'm', 't', 'x' )
-#define TTAG_kern FT_MAKE_TAG( 'k', 'e', 'r', 'n' )
-#define TTAG_loca FT_MAKE_TAG( 'l', 'o', 'c', 'a' )
-#define TTAG_LTSH FT_MAKE_TAG( 'L', 'T', 'S', 'H' )
-#define TTAG_maxp FT_MAKE_TAG( 'm', 'a', 'x', 'p' )
-#define TTAG_MMSD FT_MAKE_TAG( 'M', 'M', 'S', 'D' )
-#define TTAG_MMFX FT_MAKE_TAG( 'M', 'M', 'F', 'X' )
-#define TTAG_name FT_MAKE_TAG( 'n', 'a', 'm', 'e' )
-#define TTAG_OS2 FT_MAKE_TAG( 'O', 'S', '/', '2' )
-#define TTAG_OTTO FT_MAKE_TAG( 'O', 'T', 'T', 'O' )
-#define TTAG_PCLT FT_MAKE_TAG( 'P', 'C', 'L', 'T' )
-#define TTAG_post FT_MAKE_TAG( 'p', 'o', 's', 't' )
-#define TTAG_prep FT_MAKE_TAG( 'p', 'r', 'e', 'p' )
-#define TTAG_true FT_MAKE_TAG( 't', 'r', 'u', 'e' )
-#define TTAG_ttc FT_MAKE_TAG( 't', 't', 'c', ' ' )
-#define TTAG_ttcf FT_MAKE_TAG( 't', 't', 'c', 'f' )
-#define TTAG_VDMX FT_MAKE_TAG( 'V', 'D', 'M', 'X' )
-#define TTAG_vhea FT_MAKE_TAG( 'v', 'h', 'e', 'a' )
-#define TTAG_vmtx FT_MAKE_TAG( 'v', 'm', 't', 'x' )
-
-#endif /* TTAGS_H */
-
-
-/* END */
projects / wxWidgets.git / commitdiff
