aboutsummaryrefslogtreecommitdiff
path: root/freetype/src/type1/t1driver.c
blob: 8c398eee228aca4651b19fc3ea3cffb6f464933a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
/***************************************************************************/
/*                                                                         */
/*  t1driver.c                                                             */
/*                                                                         */
/*    Type 1 driver interface (body).                                      */
/*                                                                         */
/*  Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2009 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 <ft2build.h>
#include "t1driver.h"
#include "t1gload.h"
#include "t1load.h"

#include "t1errors.h"

#ifndef T1_CONFIG_OPTION_NO_AFM
#include "t1afm.h"
#endif

#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H

#include FT_SERVICE_MULTIPLE_MASTERS_H
#include FT_SERVICE_GLYPH_DICT_H
#include FT_SERVICE_XFREE86_NAME_H
#include FT_SERVICE_POSTSCRIPT_NAME_H
#include FT_SERVICE_POSTSCRIPT_CMAPS_H
#include FT_SERVICE_POSTSCRIPT_INFO_H
#include FT_SERVICE_KERNING_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_t1driver

 /*
  *  GLYPH DICT SERVICE
  *
  */

  static FT_Error
  t1_get_glyph_name( T1_Face     face,
                     FT_UInt     glyph_index,
                     FT_Pointer  buffer,
                     FT_UInt     buffer_max )
  {
    FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max );

    return T1_Err_Ok;
  }


  static FT_UInt
  t1_get_name_index( T1_Face     face,
                     FT_String*  glyph_name )
  {
    FT_Int      i;
    FT_String*  gname;


    for ( i = 0; i < face->type1.num_glyphs; i++ )
    {
      gname = face->type1.glyph_names[i];

      if ( !ft_strcmp( glyph_name, gname ) )
        return (FT_UInt)i;
    }

    return 0;
  }


  static const FT_Service_GlyphDictRec  t1_service_glyph_dict =
  {
    (FT_GlyphDict_GetNameFunc)  t1_get_glyph_name,
    (FT_GlyphDict_NameIndexFunc)t1_get_name_index
  };


  /*
   *  POSTSCRIPT NAME SERVICE
   *
   */

  static const char*
  t1_get_ps_name( T1_Face  face )
  {
    return (const char*) face->type1.font_name;
  }


  static const FT_Service_PsFontNameRec  t1_service_ps_name =
  {
    (FT_PsName_GetFunc)t1_get_ps_name
  };


  /*
   *  MULTIPLE MASTERS SERVICE
   *
   */

#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
  static const FT_Service_MultiMastersRec  t1_service_multi_masters =
  {
    (FT_Get_MM_Func)        T1_Get_Multi_Master,
    (FT_Set_MM_Design_Func) T1_Set_MM_Design,
    (FT_Set_MM_Blend_Func)  T1_Set_MM_Blend,
    (FT_Get_MM_Var_Func)    T1_Get_MM_Var,
    (FT_Set_Var_Design_Func)T1_Set_Var_Design
  };
#endif


  /*
   *  POSTSCRIPT INFO SERVICE
   *
   */

  static FT_Error
  t1_ps_get_font_info( FT_Face          face,
                       PS_FontInfoRec*  afont_info )
  {
    *afont_info = ((T1_Face)face)->type1.font_info;

    return T1_Err_Ok;
  }


  static FT_Error
  t1_ps_get_font_extra( FT_Face           face,
                        PS_FontExtraRec*  afont_extra )
  {
    *afont_extra = ((T1_Face)face)->type1.font_extra;

    return T1_Err_Ok;
  }


  static FT_Int
  t1_ps_has_glyph_names( FT_Face  face )
  {
    FT_UNUSED( face );

    return 1;
  }


  static FT_Error
  t1_ps_get_font_private( FT_Face         face,
                          PS_PrivateRec*  afont_private )
  {
    *afont_private = ((T1_Face)face)->type1.private_dict;

    return T1_Err_Ok;
  }


  static const FT_Service_PsInfoRec  t1_service_ps_info =
  {
    (PS_GetFontInfoFunc)   t1_ps_get_font_info,
    (PS_GetFontExtraFunc)  t1_ps_get_font_extra,
    (PS_HasGlyphNamesFunc) t1_ps_has_glyph_names,
    (PS_GetFontPrivateFunc)t1_ps_get_font_private,
  };


#ifndef T1_CONFIG_OPTION_NO_AFM
  static const FT_Service_KerningRec  t1_service_kerning =
  {
    T1_Get_Track_Kerning,
  };
#endif


  /*
   *  SERVICE LIST
   *
   */

  static const FT_ServiceDescRec  t1_services[] =
  {
    { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t1_service_ps_name },
    { FT_SERVICE_ID_GLYPH_DICT,           &t1_service_glyph_dict },
    { FT_SERVICE_ID_XF86_NAME,            FT_XF86_FORMAT_TYPE_1 },
    { FT_SERVICE_ID_POSTSCRIPT_INFO,      &t1_service_ps_info },

#ifndef T1_CONFIG_OPTION_NO_AFM
    { FT_SERVICE_ID_KERNING,              &t1_service_kerning },
#endif

#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
    { FT_SERVICE_ID_MULTI_MASTERS,        &t1_service_multi_masters },
#endif
    { NULL, NULL }
  };


  static FT_Module_Interface
  Get_Interface( FT_Driver         driver,
                 const FT_String*  t1_interface )
  {
    FT_UNUSED( driver );

    return ft_service_list_lookup( t1_services, t1_interface );
  }


#ifndef T1_CONFIG_OPTION_NO_AFM

  /*************************************************************************/
  /*                                                                       */
  /* <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( T1_Face     face,
               FT_UInt     left_glyph,
               FT_UInt     right_glyph,
               FT_Vector*  kerning )
  {
    kerning->x = 0;
    kerning->y = 0;

    if ( face->afm_data )
      T1_Get_Kerning( (AFM_FontInfo)face->afm_data,
                      left_glyph,
                      right_glyph,
                      kerning );

    return T1_Err_Ok;
  }


#endif /* T1_CONFIG_OPTION_NO_AFM */


  FT_CALLBACK_TABLE_DEF
  const FT_Driver_ClassRec  t1_driver_class =
  {
    {
      FT_MODULE_FONT_DRIVER       |
      FT_MODULE_DRIVER_SCALABLE   |
      FT_MODULE_DRIVER_HAS_HINTER,

      sizeof( FT_DriverRec ),

      "type1",
      0x10000L,
      0x20000L,

      0,   /* format interface */

      (FT_Module_Constructor)T1_Driver_Init,
      (FT_Module_Destructor) T1_Driver_Done,
      (FT_Module_Requester)  Get_Interface,
    },

    sizeof( T1_FaceRec ),
    sizeof( T1_SizeRec ),
    sizeof( T1_GlyphSlotRec ),

    (FT_Face_InitFunc)        T1_Face_Init,
    (FT_Face_DoneFunc)        T1_Face_Done,
    (FT_Size_InitFunc)        T1_Size_Init,
    (FT_Size_DoneFunc)        T1_Size_Done,
    (FT_Slot_InitFunc)        T1_GlyphSlot_Init,
    (FT_Slot_DoneFunc)        T1_GlyphSlot_Done,

#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
    ft_stub_set_char_sizes,
    ft_stub_set_pixel_sizes,
#endif
    (FT_Slot_LoadFunc)        T1_Load_Glyph,

#ifdef T1_CONFIG_OPTION_NO_AFM
    (FT_Face_GetKerningFunc)  0,
    (FT_Face_AttachFunc)      0,
#else
    (FT_Face_GetKerningFunc)  Get_Kerning,
    (FT_Face_AttachFunc)      T1_Read_Metrics,
#endif
    (FT_Face_GetAdvancesFunc) T1_Get_Advances,
    (FT_Size_RequestFunc)     T1_Size_Request,
    (FT_Size_SelectFunc)      0
  };


/* END */