Coverage Report

Created: 2026-08-22 06:39

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/xpdf-4.06/splash/SplashFTFontEngine.cc
Line
Count
Source
1
//========================================================================
2
//
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// SplashFTFontEngine.cc
4
//
5
// Copyright 2003-2013 Glyph & Cog, LLC
6
//
7
//========================================================================
8
9
#include <aconf.h>
10
11
#if HAVE_FREETYPE_H
12
13
#include <stdio.h>
14
#ifndef _WIN32
15
#  include <unistd.h>
16
#endif
17
#include "gmem.h"
18
#include "gmempp.h"
19
#include "GString.h"
20
#include "gfile.h"
21
#include "FoFiTrueType.h"
22
#include "FoFiType1C.h"
23
#include "SplashFTFontFile.h"
24
#include "SplashFTFontEngine.h"
25
#include FT_MODULE_H
26
#ifdef FT_CFF_DRIVER_H
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#  include FT_CFF_DRIVER_H
28
#endif
29
30
#ifdef VMS
31
#if (__VMS_VER < 70000000)
32
extern "C" int unlink(char *filename);
33
#endif
34
#endif
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36
//------------------------------------------------------------------------
37
38
148M
static void fileWrite(void *stream, const char *data, int len) {
39
148M
  fwrite(data, 1, len, (FILE *)stream);
40
148M
}
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42
#if LOAD_FONTS_FROM_MEM
43
static void gstringWrite(void *stream, const char *data, int len) {
44
  ((GString *)stream)->append(data, len);
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}
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#endif
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//------------------------------------------------------------------------
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// SplashFTFontEngine
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//------------------------------------------------------------------------
51
52
SplashFTFontEngine::SplashFTFontEngine(GBool aaA, Guint flagsA,
53
15.1k
               FT_Library libA) {
54
15.1k
  FT_Int major, minor, patch;
55
56
15.1k
  aa = aaA;
57
15.1k
  flags = flagsA;
58
15.1k
  lib = libA;
59
60
  // as of FT 2.1.8, CID fonts are indexed by CID instead of GID
61
15.1k
  FT_Library_Version(lib, &major, &minor, &patch);
62
15.1k
  useCIDs = major > 2 ||
63
15.1k
            (major == 2 && (minor > 1 || (minor == 1 && patch > 7)));
64
15.1k
}
65
66
15.1k
SplashFTFontEngine *SplashFTFontEngine::init(GBool aaA, Guint flagsA) {
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15.1k
  FT_Library libA;
68
69
15.1k
  if (FT_Init_FreeType(&libA)) {
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0
    return NULL;
71
0
  }
72
15.1k
  return new SplashFTFontEngine(aaA, flagsA, libA);
73
15.1k
}
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75
15.1k
SplashFTFontEngine::~SplashFTFontEngine() {
76
15.1k
  FT_Done_FreeType(lib);
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15.1k
}
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79
SplashFontFile *SplashFTFontEngine::loadType1Font(SplashFontFileID *idA,
80
#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
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#else
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              char *fileName,
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              GBool deleteFile,
85
#endif
86
1.24k
              const char **enc) {
87
1.24k
  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
88
#if LOAD_FONTS_FROM_MEM
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           fontBuf,
90
#else
91
1.24k
           fileName, deleteFile,
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1.24k
#endif
93
1.24k
           enc);
94
1.24k
}
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SplashFontFile *SplashFTFontEngine::loadType1CFont(SplashFontFileID *idA,
97
#if LOAD_FONTS_FROM_MEM
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               GString *fontBuf,
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#else
100
               char *fileName,
101
               GBool deleteFile,
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#endif
103
1.73k
               const char **enc) {
104
1.73k
  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1C,
105
#if LOAD_FONTS_FROM_MEM
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           fontBuf,
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#else
108
1.73k
           fileName, deleteFile,
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1.73k
#endif
110
1.73k
           enc);
111
1.73k
}
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113
SplashFontFile *SplashFTFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
114
#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
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#else
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              char *fileName,
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              GBool deleteFile,
119
#endif
120
737
              const char **enc) {
121
737
  FoFiTrueType *ff;
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#if LOAD_FONTS_FROM_MEM
123
  GString *fontBuf2;
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#else
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737
  GString *tmpFileName;
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737
  FILE *tmpFile;
127
737
#endif
128
737
  SplashFontFile *ret;
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130
#if LOAD_FONTS_FROM_MEM
131
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
132
        0, gTrue))) {
133
#else
134
737
  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
135
6
#endif
136
6
    return NULL;
137
6
  }
138
731
  if (ff->isHeadlessCFF()) {
139
#if LOAD_FONTS_FROM_MEM
140
    fontBuf2 = new GString();
141
    ff->convertToType1(NULL, enc, gFalse, &gstringWrite, fontBuf2);
142
    delete ff;
143
    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
144
            fontBuf2, enc);
145
    if (ret) {
146
      delete fontBuf;
147
    } else {
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      delete fontBuf2;
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    }
150
#else
151
663
    tmpFileName = NULL;
152
663
    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
153
0
      delete ff;
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0
      return NULL;
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0
    }
156
663
    ff->convertToType1(NULL, enc, gFalse, &fileWrite, tmpFile);
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663
    delete ff;
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663
    fclose(tmpFile);
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663
    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
160
663
            tmpFileName->getCString(),
161
663
            gTrue, enc);
162
663
    if (ret) {
163
168
      if (deleteFile) {
164
168
  unlink(fileName);
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168
      }
166
495
    } else {
167
495
      unlink(tmpFileName->getCString());
168
495
    }
169
663
    delete tmpFileName;
170
663
#endif
171
663
  } else {
172
68
    delete ff;
173
68
    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontOpenTypeT1C,
174
#if LOAD_FONTS_FROM_MEM
175
            fontBuf,
176
#else
177
68
            fileName, deleteFile,
178
68
#endif
179
68
            enc);
180
68
  }
181
731
  return ret;
182
731
}
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184
SplashFontFile *SplashFTFontEngine::loadCIDFont(SplashFontFileID *idA,
185
#if LOAD_FONTS_FROM_MEM
186
            GString *fontBuf,
187
#else
188
            char *fileName,
189
            GBool deleteFile,
190
#endif
191
            int *codeToGID,
192
38
            int codeToGIDLen) {
193
38
  FoFiType1C *ff;
194
38
  int *cidToGIDMap;
195
38
  int nCIDs;
196
38
  SplashFontFile *ret;
197
198
  // check for a CFF font
199
38
  if (codeToGID) {
200
0
    cidToGIDMap = NULL;
201
0
    nCIDs = 0;
202
38
  } else if (useCIDs) {
203
38
    cidToGIDMap = NULL;
204
38
    nCIDs = 0;
205
#if LOAD_FONTS_FROM_MEM
206
  } else if ((ff = FoFiType1C::make(fontBuf->getCString(),
207
            fontBuf->getLength()))) {
208
#else
209
38
  } else if ((ff = FoFiType1C::load(fileName))) {
210
0
#endif
211
0
    cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
212
0
    delete ff;
213
0
  } else {
214
0
    cidToGIDMap = NULL;
215
0
    nCIDs = 0;
216
0
  }
217
38
  ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontCID,
218
#if LOAD_FONTS_FROM_MEM
219
              fontBuf,
220
#else
221
38
              fileName, deleteFile,
222
38
#endif
223
38
              codeToGID ? codeToGID : cidToGIDMap,
224
38
              codeToGID ? codeToGIDLen : nCIDs);
225
38
  if (!ret) {
226
12
    gfree(cidToGIDMap);
227
12
  }
228
38
  return ret;
229
38
}
230
231
SplashFontFile *SplashFTFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
232
#if LOAD_FONTS_FROM_MEM
233
              GString *fontBuf,
234
#else
235
              char *fileName,
236
              GBool deleteFile,
237
#endif
238
              int *codeToGID,
239
42
              int codeToGIDLen) {
240
42
  FoFiTrueType *ff;
241
#if LOAD_FONTS_FROM_MEM
242
  GString *fontBuf2;
243
#else
244
42
  GString *tmpFileName;
245
42
  FILE *tmpFile;
246
42
#endif
247
42
  char *cffStart;
248
42
  int cffLength;
249
42
  int *cidToGIDMap;
250
42
  int nCIDs;
251
42
  SplashFontFile *ret;
252
253
#if LOAD_FONTS_FROM_MEM
254
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
255
        0, gTrue))) {
256
#else
257
42
  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
258
3
#endif
259
3
    return NULL;
260
3
  }
261
39
  cidToGIDMap = NULL;
262
39
  nCIDs = 0;
263
39
  if (ff->isHeadlessCFF()) {
264
4
    if (!ff->getCFFBlock(&cffStart, &cffLength)) {
265
1
      return NULL;
266
1
    }
267
#if LOAD_FONTS_FROM_MEM
268
    fontBuf2 = new GString(cffStart, cffLength);
269
    if (!useCIDs) {
270
      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
271
    }
272
    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
273
          fontBuf2, cidToGIDMap, nCIDs);
274
    if (ret) {
275
      delete fontBuf;
276
    } else {
277
      delete fontBuf2;
278
    }
279
#else
280
3
    tmpFileName = NULL;
281
3
    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
282
0
      delete ff;
283
0
      return NULL;
284
0
    }
285
3
    fwrite(cffStart, 1, cffLength, tmpFile);
286
3
    fclose(tmpFile);
287
3
    if (!useCIDs) {
288
0
      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
289
0
    }
290
3
    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
291
3
          tmpFileName->getCString(), gTrue,
292
3
          cidToGIDMap, nCIDs);
293
3
    if (ret) {
294
2
      if (deleteFile) {
295
2
  unlink(fileName);
296
2
      }
297
2
    } else {
298
1
      unlink(tmpFileName->getCString());
299
1
    }
300
3
    delete tmpFileName;
301
3
#endif
302
35
  } else {
303
35
    if (!codeToGID && !useCIDs && ff->isOpenTypeCFF()) {
304
0
      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
305
0
    }
306
35
    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
307
#if LOAD_FONTS_FROM_MEM
308
          fontBuf,
309
#else
310
35
          fileName, deleteFile,
311
35
#endif
312
35
          codeToGID ? codeToGID : cidToGIDMap,
313
35
          codeToGID ? codeToGIDLen : nCIDs);
314
35
  }
315
38
  delete ff;
316
38
  if (!ret) {
317
11
    gfree(cidToGIDMap);
318
11
  }
319
38
  return ret;
320
39
}
321
322
SplashFontFile *SplashFTFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
323
#if LOAD_FONTS_FROM_MEM
324
                 GString *fontBuf,
325
#else
326
                 char *fileName,
327
                 GBool deleteFile,
328
#endif
329
                 int fontNum,
330
                 int *codeToGID,
331
3.88k
                 int codeToGIDLen) {
332
3.88k
  FoFiTrueType *ff;
333
#if LOAD_FONTS_FROM_MEM
334
  GString *fontBuf2;
335
#else
336
3.88k
  GString *tmpFileName;
337
3.88k
  FILE *tmpFile;
338
3.88k
#endif
339
3.88k
  SplashFontFile *ret;
340
341
#if LOAD_FONTS_FROM_MEM
342
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
343
        fontNum))) {
344
#else
345
3.88k
  if (!(ff = FoFiTrueType::load(fileName, fontNum))) {
346
73
#endif
347
73
    return NULL;
348
73
  }
349
#if LOAD_FONTS_FROM_MEM
350
  fontBuf2 = new GString;
351
  ff->writeTTF(&gstringWrite, fontBuf2);
352
#else
353
3.81k
  tmpFileName = NULL;
354
3.81k
  if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
355
0
    delete ff;
356
0
    return NULL;
357
0
  }
358
3.81k
  ff->writeTTF(&fileWrite, tmpFile);
359
3.81k
  fclose(tmpFile);
360
3.81k
#endif
361
3.81k
  delete ff;
362
3.81k
  ret = SplashFTFontFile::loadTrueTypeFont(this, idA, splashFontTrueType,
363
#if LOAD_FONTS_FROM_MEM
364
             fontBuf2,
365
#else
366
3.81k
             tmpFileName->getCString(), gTrue,
367
3.81k
#endif
368
3.81k
             0, codeToGID, codeToGIDLen);
369
#if LOAD_FONTS_FROM_MEM
370
  if (ret) {
371
    delete fontBuf;
372
  } else {
373
    delete fontBuf2;
374
  }
375
#else
376
3.81k
  if (ret) {
377
3.51k
    if (deleteFile) {
378
3.51k
      unlink(fileName);
379
3.51k
    }
380
3.51k
  } else {
381
299
    unlink(tmpFileName->getCString());
382
299
  }
383
3.81k
  delete tmpFileName;
384
3.81k
#endif
385
3.81k
  return ret;
386
3.81k
}
387
388
#endif // HAVE_FREETYPE_H