[wxWidgets.git] / 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
cabec872 RR	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 */