src/freetype/cid/cidobjs.c

/***************************************************************************/
/*                                                                         */
/*  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 */
Commit	Line	Data
	1	/***************************************************************************/
	2	/* */
	3	/* cidobjs.c */
	4	/* */
	5	/* CID 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 "cidgload.h"
	26	#include "cidload.h"
	27
	28	#else
	29
	30	#include <cid/cidgload.h>
	31	#include <cid/cidload.h>
	32
	33	#endif
	34
	35
	36	#include <freetype/internal/psnames.h>
	37
	38
	39	/*************************************************************************/
	40	/* */
	41	/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
	42	/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
	43	/* messages during execution. */
	44	/* */
	45	#undef FT_COMPONENT
	46	#define FT_COMPONENT trace_cidobjs
	47
	48
	49	/*************************************************************************/
	50	/* */
	51	/* FACE FUNCTIONS */
	52	/* */
	53	/*************************************************************************/
	54
	55
	56	/*************************************************************************/
	57	/* */
	58	/* <Function> */
	59	/* CID_Done_Face */
	60	/* */
	61	/* <Description> */
	62	/* Finalizes a given face object. */
	63	/* */
	64	/* <Input> */
	65	/* face :: A pointer to the face object to destroy. */
	66	/* */
	67	LOCAL_FUNC
	68	void CID_Done_Face( CID_Face face )
	69	{
	70	FT_Memory memory;
	71
	72
	73	if ( face )
	74	{
	75	CID_Info* cid = &face->cid;
	76	T1_FontInfo* info = &cid->font_info;
	77
	78
	79	memory = face->root.memory;
	80
	81	/* release FontInfo strings */
	82	FREE( info->version );
	83	FREE( info->notice );
	84	FREE( info->full_name );
	85	FREE( info->family_name );
	86	FREE( info->weight );
	87
	88	/* release font dictionaries */
	89	FREE( cid->font_dicts );
	90	cid->num_dicts = 0;
	91
	92	/* release other strings */
	93	FREE( cid->cid_font_name );
	94	FREE( cid->registry );
	95	FREE( cid->ordering );
	96
	97	face->root.family_name = 0;
	98	face->root.style_name = 0;
	99	}
	100	}
	101
	102
	103	/*************************************************************************/
	104	/* */
	105	/* <Function> */
	106	/* CID_Init_Face */
	107	/* */
	108	/* <Description> */
	109	/* Initializes a given CID face object. */
	110	/* */
	111	/* <Input> */
	112	/* stream :: The source font stream. */
	113	/* */
	114	/* face_index :: The index of the font face in the resource. */
	115	/* */
	116	/* num_params :: Number of additional generic parameters. Ignored. */
	117	/* */
	118	/* params :: Additional generic parameters. Ignored. */
	119	/* */
	120	/* <InOut> */
	121	/* face :: The newly built face object. */
	122	/* */
	123	/* <Return> */
	124	/* FreeType error code. 0 means success. */
	125	/* */
	126	LOCAL_FUNC
	127	FT_Error CID_Init_Face( FT_Stream stream,
	128	CID_Face face,
	129	FT_Int face_index,
	130	FT_Int num_params,
	131	FT_Parameter* params )
	132	{
	133	FT_Error error;
	134	PSNames_Interface* psnames;
	135
	136	FT_UNUSED( num_params );
	137	FT_UNUSED( params );
	138	FT_UNUSED( face_index );
	139	FT_UNUSED( stream );
	140
	141
	142	face->root.num_faces = 1;
	143
	144	psnames = (PSNames_Interface*)face->psnames;
	145	if ( !psnames )
	146	{
	147	psnames = (PSNames_Interface*)FT_Get_Module_Interface(
	148	FT_FACE_LIBRARY( face ), "psnames" );
	149
	150	face->psnames = psnames;
	151	}
	152
	153	/* open the tokenizer; this will also check the font format */
	154	if ( FILE_Seek( 0 ) )
	155	goto Exit;
	156
	157	error = CID_Open_Face( face );
	158	if ( error )
	159	goto Exit;
	160
	161	/* if we just wanted to check the format, leave successfully now */
	162	if ( face_index < 0 )
	163	goto Exit;
	164
	165	/* check the face index */
	166	if ( face_index != 0 )
	167	{
	168	FT_ERROR(( "CID_Init_Face: invalid face index\n" ));
	169	error = T1_Err_Invalid_Argument;
	170	goto Exit;
	171	}
	172
	173	/* Now, load the font program into the face object */
	174	{
	175	/* Init the face object fields */
	176	/* Now set up root face fields */
	177	{
	178	FT_Face root = (FT_Face)&face->root;
	179
	180
	181	root->num_glyphs = face->cid.cid_count;
	182	root->num_charmaps = 0;
	183
	184	root->face_index = face_index;
	185	root->face_flags = FT_FACE_FLAG_SCALABLE;
	186
	187	root->face_flags \|= FT_FACE_FLAG_HORIZONTAL;
	188
	189	if ( face->cid.font_info.is_fixed_pitch )
	190	root->face_flags \|= FT_FACE_FLAG_FIXED_WIDTH;
	191
	192	/* XXX: TODO: add kerning with .afm support */
	193
	194	/* get style name -- be careful, some broken fonts only */
	195	/* have a /FontName dictionary entry! */
	196	root->family_name = face->cid.font_info.family_name;
	197	if ( root->family_name )
	198	{
	199	char* full = face->cid.font_info.full_name;
	200	char* family = root->family_name;
	201
	202	while ( family && full == *family )
	203	{
	204	family++;
	205	full++;
	206	}
	207
	208	root->style_name = ( *full == ' ' ) ? full + 1
	209	: (char *)"Regular";
	210	}
	211	else
	212	{
	213	/* do we have a `/FontName'? */
	214	if ( face->cid.cid_font_name )
	215	{
	216	root->family_name = face->cid.cid_font_name;
	217	root->style_name = "Regular";
	218	}
	219	}
	220
	221	/* no embedded bitmap support */
	222	root->num_fixed_sizes = 0;
	223	root->available_sizes = 0;
	224
	225	root->bbox = face->cid.font_bbox;
	226	root->units_per_EM = 1000;
	227	root->ascender = (FT_Short)face->cid.font_bbox.yMax;
	228	root->descender = -(FT_Short)face->cid.font_bbox.yMin;
	229	root->height = ( ( root->ascender + root->descender ) * 12 )
	230	/ 10;
	231
	232
	233	#if 0
	234
	235	/* now compute the maximum advance width */
	236
	237	root->max_advance_width = face->type1.private_dict.standard_width[0];
	238
	239	/* compute max advance width for proportional fonts */
	240	if ( !face->type1.font_info.is_fixed_pitch )
	241	{
	242	FT_Int max_advance;
	243
	244
	245	error = CID_Compute_Max_Advance( face, &max_advance );
	246
	247	/* in case of error, keep the standard width */
	248	if ( !error )
	249	root->max_advance_width = max_advance;
	250	else
	251	error = 0; /* clear error */
	252	}
	253
	254	root->max_advance_height = root->height;
	255
	256	#endif /* 0 */
	257
	258	root->underline_position = face->cid.font_info.underline_position;
	259	root->underline_thickness = face->cid.font_info.underline_thickness;
	260
	261	root->max_points = 0;
	262	root->max_contours = 0;
	263	}
	264	}
	265
	266	#if 0
	267
	268	/* charmap support - synthetize unicode charmap when possible */
	269	{
	270	FT_Face root = &face->root;
	271	FT_CharMap charmap = face->charmaprecs;
	272
	273
	274	/* synthesize a Unicode charmap if there is support in the `psnames' */
	275	/* module */
	276	if ( face->psnames )
	277	{
	278	PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
	279
	280
	281	if ( psnames->unicode_value )
	282	{
	283	error = psnames->build_unicodes(
	284	root->memory,
	285	face->type1.num_glyphs,
	286	(const char**)face->type1.glyph_names,
	287	&face->unicode_map );
	288	if ( !error )
	289	{
	290	root->charmap = charmap;
	291	charmap->face = (FT_Face)face;
	292	charmap->encoding = ft_encoding_unicode;
	293	charmap->platform_id = 3;
	294	charmap->encoding_id = 1;
	295	charmap++;
	296	}
	297
	298	/* simply clear the error in case of failure (which really */
	299	/* means that out of memory or no unicode glyph names) */
	300	error = 0;
	301	}
	302	}
	303
	304	/* now, support either the standard, expert, or custom encodings */
	305	charmap->face = (FT_Face)face;
	306	charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
	307
	308	switch ( face->type1.encoding_type )
	309	{
	310	case t1_encoding_standard:
	311	charmap->encoding = ft_encoding_adobe_standard;
	312	charmap->encoding_id = 0;
	313	break;
	314
	315	case t1_encoding_expert:
	316	charmap->encoding = ft_encoding_adobe_expert;
	317	charmap->encoding_id = 1;
	318	break;
	319
	320	default:
	321	charmap->encoding = ft_encoding_adobe_custom;
	322	charmap->encoding_id = 2;
	323	break;
	324	}
	325
	326	root->charmaps = face->charmaps;
	327	root->num_charmaps = charmap - face->charmaprecs + 1;
	328	face->charmaps[0] = &face->charmaprecs[0];
	329	face->charmaps[1] = &face->charmaprecs[1];
	330	}
	331
	332	#endif /* 0 */
	333
	334	Exit:
	335	return error;
	336	}
	337
	338
	339	/*************************************************************************/
	340	/* */
	341	/* <Function> */
	342	/* CID_Init_Driver */
	343	/* */
	344	/* <Description> */
	345	/* Initializes a given CID driver object. */
	346	/* */
	347	/* <Input> */
	348	/* driver :: A handle to the target driver object. */
	349	/* */
	350	/* <Return> */
	351	/* FreeType error code. 0 means success. */
	352	/* */
	353	LOCAL_FUNC
	354	FT_Error CID_Init_Driver( CID_Driver driver )
	355	{
	356	FT_UNUSED( driver );
	357
	358	return T1_Err_Ok;
	359	}
	360
	361
	362	/*************************************************************************/
	363	/* */
	364	/* <Function> */
	365	/* CID_Done_Driver */
	366	/* */
	367	/* <Description> */
	368	/* Finalizes a given CID driver. */
	369	/* */
	370	/* <Input> */
	371	/* driver :: A handle to the target CID driver. */
	372	/* */
	373	LOCAL_DEF
	374	void CID_Done_Driver( CID_Driver driver )
	375	{
	376	FT_UNUSED( driver );
	377	}
	378
	379
	380	/* END */