Coverage Report

Created: 2026-06-22 07:09

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/xpdf-4.06/splash/SplashFTFontEngine.cc
Line
Count
Source
1
//========================================================================
2
//
3
// 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"
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#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
51.9M
static void fileWrite(void *stream, const char *data, int len) {
39
51.9M
  fwrite(data, 1, len, (FILE *)stream);
40
51.9M
}
41
42
#if LOAD_FONTS_FROM_MEM
43
static void gstringWrite(void *stream, const char *data, int len) {
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  ((GString *)stream)->append(data, len);
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}
46
#endif
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48
//------------------------------------------------------------------------
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// SplashFTFontEngine
50
//------------------------------------------------------------------------
51
52
SplashFTFontEngine::SplashFTFontEngine(GBool aaA, Guint flagsA,
53
10.2k
               FT_Library libA) {
54
10.2k
  FT_Int major, minor, patch;
55
56
10.2k
  aa = aaA;
57
10.2k
  flags = flagsA;
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10.2k
  lib = libA;
59
60
  // as of FT 2.1.8, CID fonts are indexed by CID instead of GID
61
10.2k
  FT_Library_Version(lib, &major, &minor, &patch);
62
10.2k
  useCIDs = major > 2 ||
63
10.2k
            (major == 2 && (minor > 1 || (minor == 1 && patch > 7)));
64
10.2k
}
65
66
10.2k
SplashFTFontEngine *SplashFTFontEngine::init(GBool aaA, Guint flagsA) {
67
10.2k
  FT_Library libA;
68
69
10.2k
  if (FT_Init_FreeType(&libA)) {
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0
    return NULL;
71
0
  }
72
10.2k
  return new SplashFTFontEngine(aaA, flagsA, libA);
73
10.2k
}
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75
10.2k
SplashFTFontEngine::~SplashFTFontEngine() {
76
10.2k
  FT_Done_FreeType(lib);
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10.2k
}
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79
SplashFontFile *SplashFTFontEngine::loadType1Font(SplashFontFileID *idA,
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#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
933
              const char **enc) {
87
933
  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
88
#if LOAD_FONTS_FROM_MEM
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           fontBuf,
90
#else
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933
           fileName, deleteFile,
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933
#endif
93
933
           enc);
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933
}
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96
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,
102
#endif
103
1.17k
               const char **enc) {
104
1.17k
  return SplashFTFontFile::loadType1Font(this, idA, splashFontType1C,
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#if LOAD_FONTS_FROM_MEM
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           fontBuf,
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#else
108
1.17k
           fileName, deleteFile,
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1.17k
#endif
110
1.17k
           enc);
111
1.17k
}
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SplashFontFile *SplashFTFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
114
#if LOAD_FONTS_FROM_MEM
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              GString *fontBuf,
116
#else
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              char *fileName,
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              GBool deleteFile,
119
#endif
120
466
              const char **enc) {
121
466
  FoFiTrueType *ff;
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#if LOAD_FONTS_FROM_MEM
123
  GString *fontBuf2;
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#else
125
466
  GString *tmpFileName;
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466
  FILE *tmpFile;
127
466
#endif
128
466
  SplashFontFile *ret;
129
130
#if LOAD_FONTS_FROM_MEM
131
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
132
        0, gTrue))) {
133
#else
134
466
  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
135
4
#endif
136
4
    return NULL;
137
4
  }
138
462
  if (ff->isHeadlessCFF()) {
139
#if LOAD_FONTS_FROM_MEM
140
    fontBuf2 = new GString();
141
    ff->convertToType1(NULL, enc, gFalse, &gstringWrite, fontBuf2);
142
    delete ff;
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    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
144
            fontBuf2, enc);
145
    if (ret) {
146
      delete fontBuf;
147
    } else {
148
      delete fontBuf2;
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    }
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#else
151
430
    tmpFileName = NULL;
152
430
    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
153
0
      delete ff;
154
0
      return NULL;
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0
    }
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430
    ff->convertToType1(NULL, enc, gFalse, &fileWrite, tmpFile);
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430
    delete ff;
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430
    fclose(tmpFile);
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430
    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontType1,
160
430
            tmpFileName->getCString(),
161
430
            gTrue, enc);
162
430
    if (ret) {
163
101
      if (deleteFile) {
164
101
  unlink(fileName);
165
101
      }
166
329
    } else {
167
329
      unlink(tmpFileName->getCString());
168
329
    }
169
430
    delete tmpFileName;
170
430
#endif
171
430
  } else {
172
32
    delete ff;
173
32
    ret = SplashFTFontFile::loadType1Font(this, idA, splashFontOpenTypeT1C,
174
#if LOAD_FONTS_FROM_MEM
175
            fontBuf,
176
#else
177
32
            fileName, deleteFile,
178
32
#endif
179
32
            enc);
180
32
  }
181
462
  return ret;
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462
}
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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
40
            int codeToGIDLen) {
193
40
  FoFiType1C *ff;
194
40
  int *cidToGIDMap;
195
40
  int nCIDs;
196
40
  SplashFontFile *ret;
197
198
  // check for a CFF font
199
40
  if (codeToGID) {
200
0
    cidToGIDMap = NULL;
201
0
    nCIDs = 0;
202
40
  } else if (useCIDs) {
203
40
    cidToGIDMap = NULL;
204
40
    nCIDs = 0;
205
#if LOAD_FONTS_FROM_MEM
206
  } else if ((ff = FoFiType1C::make(fontBuf->getCString(),
207
            fontBuf->getLength()))) {
208
#else
209
40
  } 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
40
  ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontCID,
218
#if LOAD_FONTS_FROM_MEM
219
              fontBuf,
220
#else
221
40
              fileName, deleteFile,
222
40
#endif
223
40
              codeToGID ? codeToGID : cidToGIDMap,
224
40
              codeToGID ? codeToGIDLen : nCIDs);
225
40
  if (!ret) {
226
16
    gfree(cidToGIDMap);
227
16
  }
228
40
  return ret;
229
40
}
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
36
              int codeToGIDLen) {
240
36
  FoFiTrueType *ff;
241
#if LOAD_FONTS_FROM_MEM
242
  GString *fontBuf2;
243
#else
244
36
  GString *tmpFileName;
245
36
  FILE *tmpFile;
246
36
#endif
247
36
  char *cffStart;
248
36
  int cffLength;
249
36
  int *cidToGIDMap;
250
36
  int nCIDs;
251
36
  SplashFontFile *ret;
252
253
#if LOAD_FONTS_FROM_MEM
254
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
255
        0, gTrue))) {
256
#else
257
36
  if (!(ff = FoFiTrueType::load(fileName, 0, gTrue))) {
258
4
#endif
259
4
    return NULL;
260
4
  }
261
32
  cidToGIDMap = NULL;
262
32
  nCIDs = 0;
263
32
  if (ff->isHeadlessCFF()) {
264
2
    if (!ff->getCFFBlock(&cffStart, &cffLength)) {
265
0
      return NULL;
266
0
    }
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
2
    tmpFileName = NULL;
281
2
    if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
282
0
      delete ff;
283
0
      return NULL;
284
0
    }
285
2
    fwrite(cffStart, 1, cffLength, tmpFile);
286
2
    fclose(tmpFile);
287
2
    if (!useCIDs) {
288
0
      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
289
0
    }
290
2
    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
291
2
          tmpFileName->getCString(), gTrue,
292
2
          cidToGIDMap, nCIDs);
293
2
    if (ret) {
294
1
      if (deleteFile) {
295
1
  unlink(fileName);
296
1
      }
297
1
    } else {
298
1
      unlink(tmpFileName->getCString());
299
1
    }
300
2
    delete tmpFileName;
301
2
#endif
302
30
  } else {
303
30
    if (!codeToGID && !useCIDs && ff->isOpenTypeCFF()) {
304
0
      cidToGIDMap = ff->getCIDToGIDMap(&nCIDs);
305
0
    }
306
30
    ret = SplashFTFontFile::loadCIDFont(this, idA, splashFontOpenTypeCFF,
307
#if LOAD_FONTS_FROM_MEM
308
          fontBuf,
309
#else
310
30
          fileName, deleteFile,
311
30
#endif
312
30
          codeToGID ? codeToGID : cidToGIDMap,
313
30
          codeToGID ? codeToGIDLen : nCIDs);
314
30
  }
315
32
  delete ff;
316
32
  if (!ret) {
317
14
    gfree(cidToGIDMap);
318
14
  }
319
32
  return ret;
320
32
}
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
2.53k
                 int codeToGIDLen) {
332
2.53k
  FoFiTrueType *ff;
333
#if LOAD_FONTS_FROM_MEM
334
  GString *fontBuf2;
335
#else
336
2.53k
  GString *tmpFileName;
337
2.53k
  FILE *tmpFile;
338
2.53k
#endif
339
2.53k
  SplashFontFile *ret;
340
341
#if LOAD_FONTS_FROM_MEM
342
  if (!(ff = FoFiTrueType::make(fontBuf->getCString(), fontBuf->getLength(),
343
        fontNum))) {
344
#else
345
2.53k
  if (!(ff = FoFiTrueType::load(fileName, fontNum))) {
346
54
#endif
347
54
    return NULL;
348
54
  }
349
#if LOAD_FONTS_FROM_MEM
350
  fontBuf2 = new GString;
351
  ff->writeTTF(&gstringWrite, fontBuf2);
352
#else
353
2.47k
  tmpFileName = NULL;
354
2.47k
  if (!openTempFile(&tmpFileName, &tmpFile, "wb", NULL)) {
355
0
    delete ff;
356
0
    return NULL;
357
0
  }
358
2.47k
  ff->writeTTF(&fileWrite, tmpFile);
359
2.47k
  fclose(tmpFile);
360
2.47k
#endif
361
2.47k
  delete ff;
362
2.47k
  ret = SplashFTFontFile::loadTrueTypeFont(this, idA, splashFontTrueType,
363
#if LOAD_FONTS_FROM_MEM
364
             fontBuf2,
365
#else
366
2.47k
             tmpFileName->getCString(), gTrue,
367
2.47k
#endif
368
2.47k
             0, codeToGID, codeToGIDLen);
369
#if LOAD_FONTS_FROM_MEM
370
  if (ret) {
371
    delete fontBuf;
372
  } else {
373
    delete fontBuf2;
374
  }
375
#else
376
2.47k
  if (ret) {
377
2.29k
    if (deleteFile) {
378
2.29k
      unlink(fileName);
379
2.29k
    }
380
2.29k
  } else {
381
183
    unlink(tmpFileName->getCString());
382
183
  }
383
2.47k
  delete tmpFileName;
384
2.47k
#endif
385
2.47k
  return ret;
386
2.47k
}
387
388
#endif // HAVE_FREETYPE_H