src/freetype/type1z/z1objs.c

/***************************************************************************/
/*                                                                         */
/*  z1objs.c                                                               */
/*                                                                         */
/*    Experimental Type 1 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 "z1gload.h"
#include "z1load.h"
#include "z1afm.h"

#else

#include <type1z/z1gload.h>
#include <type1z/z1load.h>
#include <type1z/z1afm.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_z1objs


  /*************************************************************************/
  /*                                                                       */
  /*                            FACE  FUNCTIONS                            */
  /*                                                                       */
  /*************************************************************************/


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Done_Face                                                       */
  /*                                                                       */
  /* <Description>                                                         */
  /*    The face object destructor.                                        */
  /*                                                                       */
  /* <Input>                                                               */
  /*    face :: A typeless pointer to the face object to destroy.          */
  /*                                                                       */
  LOCAL_FUNC
  void  Z1_Done_Face( T1_Face  face )
  {
    FT_Memory  memory;
    T1_Font*   type1 = &face->type1;


    if ( face )
    {
      memory = face->root.memory;

#ifndef Z1_CONFIG_OPTION_NO_MM_SUPPORT
      /* release multiple masters information */
      Z1_Done_Blend( face );
      face->blend = 0;
#endif

      /* release font info strings */
      {
        T1_FontInfo*  info = &type1->font_info;


        FREE( info->version );
        FREE( info->notice );
        FREE( info->full_name );
        FREE( info->family_name );
        FREE( info->weight );
      }

      /* release top dictionary */
      FREE( type1->charstrings_len );
      FREE( type1->charstrings );
      FREE( type1->glyph_names );

      FREE( type1->subrs );
      FREE( type1->subrs_len );

      FREE( type1->subrs_block );
      FREE( type1->charstrings_block );
      FREE( type1->glyph_names_block );

      FREE( type1->encoding.char_index );
      FREE( type1->font_name );

#ifndef Z1_CONFIG_OPTION_NO_AFM
      /* release afm data if present */
      if ( face->afm_data )
        Z1_Done_AFM( memory, (Z1_AFM*)face->afm_data );
#endif

      /* release unicode map, if any */
      FREE( face->unicode_map.maps );
      face->unicode_map.num_maps = 0;

      face->root.family_name = 0;
      face->root.style_name  = 0;
    }
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Init_Face                                                       */
  /*                                                                       */
  /* <Description>                                                         */
  /*    The face object constructor.                                       */
  /*                                                                       */
  /* <Input>                                                               */
  /*    stream     ::  input stream where to load font data.               */
  /*                                                                       */
  /*    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 face record to build.                            */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  LOCAL_FUNC
  FT_Error  Z1_Init_Face( FT_Stream      stream,
                          T1_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 */
    error = Z1_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(( "Z1_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->type1.num_glyphs;
      root->num_charmaps = 1;

      root->face_index = face_index;
      root->face_flags = FT_FACE_FLAG_SCALABLE;

      root->face_flags |= FT_FACE_FLAG_HORIZONTAL;

      root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;

      if ( face->type1.font_info.is_fixed_pitch )
        root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;

      if ( face->blend )
        root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;

      /* 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->type1.font_info.family_name;
      if ( root->family_name )
      {
        char*  full   = face->type1.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->type1.font_name )
        {
          root->family_name = face->type1.font_name;
          root->style_name  = "Regular";
        }
      }

      /* no embedded bitmap support */
      root->num_fixed_sizes = 0;
      root->available_sizes = 0;

      root->bbox         = face->type1.font_bbox;
      root->units_per_EM = 1000;
      root->ascender     =  (FT_Short)face->type1.font_bbox.yMax;
      root->descender    = -(FT_Short)face->type1.font_bbox.yMin;
      root->height       = ( ( root->ascender + root->descender ) * 12 ) / 10;

      /* 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 = Z1_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;

      root->underline_position  = face->type1.font_info.underline_position;
      root->underline_thickness = face->type1.font_info.underline_thickness;

      root->max_points   = 0;
      root->max_contours = 0;
    }

    /* charmap support -- synthetize unicode charmap if 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 = FT_Err_Ok;
        }
      }

      /* now, support either the standard, expert, or custom encoding */
      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];
    }

  Exit:
    return error;
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Init_Driver                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Initializes a given Type 1 driver object.                          */
  /*                                                                       */
  /* <Input>                                                               */
  /*    driver :: A handle to the target driver object.                    */
  /*                                                                       */
  /* <Return>                                                              */
  /*    FreeType error code.  0 means success.                             */
  /*                                                                       */
  LOCAL_FUNC
  FT_Error  Z1_Init_Driver( Z1_Driver  driver )
  {
    FT_UNUSED( driver );

    return T1_Err_Ok;
  }


  /*************************************************************************/
  /*                                                                       */
  /* <Function>                                                            */
  /*    Z1_Done_Driver                                                     */
  /*                                                                       */
  /* <Description>                                                         */
  /*    Finalizes a given Type 1 driver.                                   */
  /*                                                                       */
  /* <Input>                                                               */
  /*    driver  :: A handle to the target Type 1 driver.                   */
  /*                                                                       */
  LOCAL_DEF
  void  Z1_Done_Driver( Z1_Driver  driver )
  {
    FT_UNUSED( driver );
  }


/* END */
Commit	Line	Data
	1	/***************************************************************************/
	2	/* */
	3	/* z1objs.c */
	4	/* */
	5	/* Experimental Type 1 objects manager (body). */
	6	/* */
	7	/* Copyright 1996-2000 by */
	8	/* David Turner, Robert Wilhelm, and Werner Lemberg. */
	9	/* */
	10	/* This file is part of the FreeType project, and may only be used, */
	11	/* modified, and distributed under the terms of the FreeType project */
	12	/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
	13	/* this file you indicate that you have read the license and */
	14	/* understand and accept it fully. */
	15	/* */
	16	/***************************************************************************/
	17
	18
	19	#include <freetype/internal/ftdebug.h>
	20	#include <freetype/internal/ftstream.h>
	21
	22
	23	#ifdef FT_FLAT_COMPILE
	24
	25	#include "z1gload.h"
	26	#include "z1load.h"
	27	#include "z1afm.h"
	28
	29	#else
	30
	31	#include <type1z/z1gload.h>
	32	#include <type1z/z1load.h>
	33	#include <type1z/z1afm.h>
	34
	35	#endif
	36
	37
	38	#include <freetype/internal/psnames.h>
	39
	40
	41	/*************************************************************************/
	42	/* */
	43	/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
	44	/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
	45	/* messages during execution. */
	46	/* */
	47	#undef FT_COMPONENT
	48	#define FT_COMPONENT trace_z1objs
	49
	50
	51	/*************************************************************************/
	52	/* */
	53	/* FACE FUNCTIONS */
	54	/* */
	55	/*************************************************************************/
	56
	57
	58	/*************************************************************************/
	59	/* */
	60	/* <Function> */
	61	/* Z1_Done_Face */
	62	/* */
	63	/* <Description> */
	64	/* The face object destructor. */
	65	/* */
	66	/* <Input> */
	67	/* face :: A typeless pointer to the face object to destroy. */
	68	/* */
	69	LOCAL_FUNC
	70	void Z1_Done_Face( T1_Face face )
	71	{
	72	FT_Memory memory;
	73	T1_Font* type1 = &face->type1;
	74
	75
	76	if ( face )
	77	{
	78	memory = face->root.memory;
	79
	80	#ifndef Z1_CONFIG_OPTION_NO_MM_SUPPORT
	81	/* release multiple masters information */
	82	Z1_Done_Blend( face );
	83	face->blend = 0;
	84	#endif
	85
	86	/* release font info strings */
	87	{
	88	T1_FontInfo* info = &type1->font_info;
	89
	90
	91	FREE( info->version );
	92	FREE( info->notice );
	93	FREE( info->full_name );
	94	FREE( info->family_name );
	95	FREE( info->weight );
	96	}
	97
	98	/* release top dictionary */
	99	FREE( type1->charstrings_len );
	100	FREE( type1->charstrings );
	101	FREE( type1->glyph_names );
	102
	103	FREE( type1->subrs );
	104	FREE( type1->subrs_len );
	105
	106	FREE( type1->subrs_block );
	107	FREE( type1->charstrings_block );
	108	FREE( type1->glyph_names_block );
	109
	110	FREE( type1->encoding.char_index );
	111	FREE( type1->font_name );
	112
	113	#ifndef Z1_CONFIG_OPTION_NO_AFM
	114	/* release afm data if present */
	115	if ( face->afm_data )
	116	Z1_Done_AFM( memory, (Z1_AFM*)face->afm_data );
	117	#endif
	118
	119	/* release unicode map, if any */
	120	FREE( face->unicode_map.maps );
	121	face->unicode_map.num_maps = 0;
	122
	123	face->root.family_name = 0;
	124	face->root.style_name = 0;
	125	}
	126	}
	127
	128
	129	/*************************************************************************/
	130	/* */
	131	/* <Function> */
	132	/* Z1_Init_Face */
	133	/* */
	134	/* <Description> */
	135	/* The face object constructor. */
	136	/* */
	137	/* <Input> */
	138	/* stream :: input stream where to load font data. */
	139	/* */
	140	/* face_index :: The index of the font face in the resource. */
	141	/* */
	142	/* num_params :: Number of additional generic parameters. Ignored. */
	143	/* */
	144	/* params :: Additional generic parameters. Ignored. */
	145	/* */
	146	/* <InOut> */
	147	/* face :: The face record to build. */
	148	/* */
	149	/* <Return> */
	150	/* FreeType error code. 0 means success. */
	151	/* */
	152	LOCAL_FUNC
	153	FT_Error Z1_Init_Face( FT_Stream stream,
	154	T1_Face face,
	155	FT_Int face_index,
	156	FT_Int num_params,
	157	FT_Parameter* params )
	158	{
	159	FT_Error error;
	160	PSNames_Interface* psnames;
	161
	162	FT_UNUSED( num_params );
	163	FT_UNUSED( params );
	164	FT_UNUSED( face_index );
	165	FT_UNUSED( stream );
	166
	167
	168	face->root.num_faces = 1;
	169
	170	psnames = (PSNames_Interface*)face->psnames;
	171	if ( !psnames )
	172	{
	173	psnames = (PSNames_Interface*)
	174	FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );
	175
	176	face->psnames = psnames;
	177	}
	178
	179	/* open the tokenizer, this will also check the font format */
	180	error = Z1_Open_Face( face );
	181	if ( error )
	182	goto Exit;
	183
	184	/* if we just wanted to check the format, leave successfully now */
	185	if ( face_index < 0 )
	186	goto Exit;
	187
	188	/* check the face index */
	189	if ( face_index != 0 )
	190	{
	191	FT_ERROR(( "Z1_Init_Face: invalid face index\n" ));
	192	error = T1_Err_Invalid_Argument;
	193	goto Exit;
	194	}
	195
	196	/* Now, load the font program into the face object */
	197
	198	/* Init the face object fields */
	199	/* Now set up root face fields */
	200	{
	201	FT_Face root = (FT_Face)&face->root;
	202
	203
	204	root->num_glyphs = face->type1.num_glyphs;
	205	root->num_charmaps = 1;
	206
	207	root->face_index = face_index;
	208	root->face_flags = FT_FACE_FLAG_SCALABLE;
	209
	210	root->face_flags \|= FT_FACE_FLAG_HORIZONTAL;
	211
	212	root->face_flags \|= FT_FACE_FLAG_GLYPH_NAMES;
	213
	214	if ( face->type1.font_info.is_fixed_pitch )
	215	root->face_flags \|= FT_FACE_FLAG_FIXED_WIDTH;
	216
	217	if ( face->blend )
	218	root->face_flags \|= FT_FACE_FLAG_MULTIPLE_MASTERS;
	219
	220	/* XXX: TODO -- add kerning with .afm support */
	221
	222	/* get style name -- be careful, some broken fonts only */
	223	/* have a `/FontName' dictionary entry! */
	224	root->family_name = face->type1.font_info.family_name;
	225	if ( root->family_name )
	226	{
	227	char* full = face->type1.font_info.full_name;
	228	char* family = root->family_name;
	229
	230
	231	while ( family && full == *family )
	232	{
	233	family++;
	234	full++;
	235	}
	236
	237	root->style_name = ( *full == ' ' ? full + 1
	238	: (char *)"Regular" );
	239	}
	240	else
	241	{
	242	/* do we have a `/FontName'? */
	243	if ( face->type1.font_name )
	244	{
	245	root->family_name = face->type1.font_name;
	246	root->style_name = "Regular";
	247	}
	248	}
	249
	250	/* no embedded bitmap support */
	251	root->num_fixed_sizes = 0;
	252	root->available_sizes = 0;
	253
	254	root->bbox = face->type1.font_bbox;
	255	root->units_per_EM = 1000;
	256	root->ascender = (FT_Short)face->type1.font_bbox.yMax;
	257	root->descender = -(FT_Short)face->type1.font_bbox.yMin;
	258	root->height = ( ( root->ascender + root->descender ) * 12 ) / 10;
	259
	260	/* now compute the maximum advance width */
	261
	262	root->max_advance_width = face->type1.private_dict.standard_width[0];
	263
	264	/* compute max advance width for proportional fonts */
	265	if ( !face->type1.font_info.is_fixed_pitch )
	266	{
	267	FT_Int max_advance;
	268
	269
	270	error = Z1_Compute_Max_Advance( face, &max_advance );
	271
	272	/* in case of error, keep the standard width */
	273	if ( !error )
	274	root->max_advance_width = max_advance;
	275	else
	276	error = 0; /* clear error */
	277	}
	278
	279	root->max_advance_height = root->height;
	280
	281	root->underline_position = face->type1.font_info.underline_position;
	282	root->underline_thickness = face->type1.font_info.underline_thickness;
	283
	284	root->max_points = 0;
	285	root->max_contours = 0;
	286	}
	287
	288	/* charmap support -- synthetize unicode charmap if possible */
	289	{
	290	FT_Face root = &face->root;
	291	FT_CharMap charmap = face->charmaprecs;
	292
	293
	294	/* synthesize a Unicode charmap if there is support in the `PSNames' */
	295	/* module */
	296	if ( face->psnames )
	297	{
	298	PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
	299
	300
	301	if ( psnames->unicode_value )
	302	{
	303	error = psnames->build_unicodes(
	304	root->memory,
	305	face->type1.num_glyphs,
	306	(const char**)face->type1.glyph_names,
	307	&face->unicode_map );
	308	if ( !error )
	309	{
	310	root->charmap = charmap;
	311	charmap->face = (FT_Face)face;
	312	charmap->encoding = ft_encoding_unicode;
	313	charmap->platform_id = 3;
	314	charmap->encoding_id = 1;
	315	charmap++;
	316	}
	317
	318	/* simply clear the error in case of failure (which really) */
	319	/* means that out of memory or no unicode glyph names */
	320	error = FT_Err_Ok;
	321	}
	322	}
	323
	324	/* now, support either the standard, expert, or custom encoding */
	325	charmap->face = (FT_Face)face;
	326	charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
	327
	328	switch ( face->type1.encoding_type )
	329	{
	330	case t1_encoding_standard:
	331	charmap->encoding = ft_encoding_adobe_standard;
	332	charmap->encoding_id = 0;
	333	break;
	334
	335	case t1_encoding_expert:
	336	charmap->encoding = ft_encoding_adobe_expert;
	337	charmap->encoding_id = 1;
	338	break;
	339
	340	default:
	341	charmap->encoding = ft_encoding_adobe_custom;
	342	charmap->encoding_id = 2;
	343	break;
	344	}
	345
	346	root->charmaps = face->charmaps;
	347	root->num_charmaps = charmap - face->charmaprecs + 1;
	348	face->charmaps[0] = &face->charmaprecs[0];
	349	face->charmaps[1] = &face->charmaprecs[1];
	350	}
	351
	352	Exit:
	353	return error;
	354	}
	355
	356
	357	/*************************************************************************/
	358	/* */
	359	/* <Function> */
	360	/* Z1_Init_Driver */
	361	/* */
	362	/* <Description> */
	363	/* Initializes a given Type 1 driver object. */
	364	/* */
	365	/* <Input> */
	366	/* driver :: A handle to the target driver object. */
	367	/* */
	368	/* <Return> */
	369	/* FreeType error code. 0 means success. */
	370	/* */
	371	LOCAL_FUNC
	372	FT_Error Z1_Init_Driver( Z1_Driver driver )
	373	{
	374	FT_UNUSED( driver );
	375
	376	return T1_Err_Ok;
	377	}
	378
	379
	380	/*************************************************************************/
	381	/* */
	382	/* <Function> */
	383	/* Z1_Done_Driver */
	384	/* */
	385	/* <Description> */
	386	/* Finalizes a given Type 1 driver. */
	387	/* */
	388	/* <Input> */
	389	/* driver :: A handle to the target Type 1 driver. */
	390	/* */
	391	LOCAL_DEF
	392	void Z1_Done_Driver( Z1_Driver driver )
	393	{
	394	FT_UNUSED( driver );
	395	}
	396
	397
	398	/* END */