/src/xpdf-4.06/splash/SplashFontEngine.cc

Source
//========================================================================
//
// SplashFontEngine.cc
//
// Copyright 2003-2013 Glyph & Cog, LLC
//
//========================================================================

#include <aconf.h>

#include <stdlib.h>
#include <stdio.h>
#ifndef _WIN32
#  include <unistd.h>
#endif
#include "gmem.h"
#include "gmempp.h"
#include "GString.h"
#include "GList.h"
#include "SplashMath.h"
#include "SplashFTFontEngine.h"
#include "SplashFontFile.h"
#include "SplashFontFileID.h"
#include "SplashFont.h"
#include "SplashFontEngine.h"

#ifdef VMS
#if (__VMS_VER < 70000000)
extern "C" int unlink(char *filename);
#endif
#endif

//------------------------------------------------------------------------
// SplashFontEngine
//------------------------------------------------------------------------

SplashFontEngine::SplashFontEngine(
#if HAVE_FREETYPE_H
           GBool enableFreeType,
           Guint freeTypeFlags,
#endif
           GBool aa) {
  int i;

  for (i = 0; i < splashFontCacheSize; ++i) {
    fontCache[i] = NULL;
  }
  badFontFiles = new GList();

#if HAVE_FREETYPE_H
  if (enableFreeType) {
    ftEngine = SplashFTFontEngine::init(aa, freeTypeFlags);
  } else {
    ftEngine = NULL;
  }
#endif
}

SplashFontEngine::~SplashFontEngine() {
  int i;

  for (i = 0; i < splashFontCacheSize; ++i) {
    if (fontCache[i]) {
      delete fontCache[i];
    }
  }
  deleteGList(badFontFiles, SplashFontFileID);

#if HAVE_FREETYPE_H
  if (ftEngine) {
    delete ftEngine;
  }
#endif
}

SplashFontFile *SplashFontEngine::getFontFile(SplashFontFileID *id) {
  SplashFontFile *fontFile;
  int i;

  for (i = 0; i < splashFontCacheSize; ++i) {
    if (fontCache[i]) {
      fontFile = fontCache[i]->getFontFile();
      if (fontFile && fontFile->getID()->matches(id)) {
  return fontFile;
      }
    }
  }
  return NULL;
}

GBool SplashFontEngine::checkForBadFontFile(SplashFontFileID *id) {
  for (int i = 0; i < badFontFiles->getLength(); ++i) {
    if (((SplashFontFileID *)badFontFiles->get(i))->matches(id)) {
      return gTrue;
    }
  }
  return gFalse;
}

SplashFontFile *SplashFontEngine::loadType1Font(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
            GString *fontBuf,
#else
            char *fileName,
            GBool deleteFile,
#endif
            const char **enc) {
  SplashFontFile *fontFile;

  fontFile = NULL;
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadType1Font(idA,
#if LOAD_FONTS_FROM_MEM
               fontBuf,
#else
               fileName, deleteFile,
#endif
               enc);
  }
#endif

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFontFile *SplashFontEngine::loadType1CFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
             GString *fontBuf,
#else
             char *fileName,
             GBool deleteFile,
#endif
             int *codeToGID,
             const char **enc) {
  SplashFontFile *fontFile;

  fontFile = NULL;
  if (!fontFile) {
    gfree(codeToGID);
  }
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadType1CFont(idA,
#if LOAD_FONTS_FROM_MEM
          fontBuf,
#else
          fileName, deleteFile,
#endif
          enc);
  }
#endif

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFontFile *SplashFontEngine::loadOpenTypeT1CFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
                  GString *fontBuf,
#else
                  char *fileName,
                  GBool deleteFile,
#endif
                  int *codeToGID,
                  const char **enc) {
  SplashFontFile *fontFile;

  fontFile = NULL;
  if (!fontFile) {
    gfree(codeToGID);
  }
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadOpenTypeT1CFont(idA,
#if LOAD_FONTS_FROM_MEM
               fontBuf,
#else
               fileName, deleteFile,
#endif
               enc);
  }
#endif

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFontFile *SplashFontEngine::loadCIDFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
                GString *fontBuf,
#else
                char *fileName,
                GBool deleteFile,
#endif
                int *codeToGID,
                int codeToGIDLen) {
  SplashFontFile *fontFile;

  fontFile = NULL;
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadCIDFont(idA,
#if LOAD_FONTS_FROM_MEM
             fontBuf,
#else
             fileName, deleteFile,
#endif
             codeToGID, codeToGIDLen);
  }
#endif

  if (!fontFile) {
    gfree(codeToGID);
  }

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFontFile *SplashFontEngine::loadOpenTypeCFFFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
                  GString *fontBuf,
#else
                  char *fileName,
                  GBool deleteFile,
#endif
                  int *codeToGID,
                  int codeToGIDLen) {
  SplashFontFile *fontFile;

  fontFile = NULL;
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadOpenTypeCFFFont(idA,
#if LOAD_FONTS_FROM_MEM
               fontBuf,
#else
               fileName, deleteFile,
#endif
               codeToGID, codeToGIDLen);
  }
#endif

  if (!fontFile) {
    gfree(codeToGID);
  }

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFontFile *SplashFontEngine::loadTrueTypeFont(SplashFontFileID *idA,
#if LOAD_FONTS_FROM_MEM
               GString *fontBuf,
#else
               char *fileName,
               GBool deleteFile,
#endif
               int fontNum,
               int *codeToGID,
               int codeToGIDLen,
               char *fontName) {
  SplashFontFile *fontFile;

  fontFile = NULL;
#if HAVE_FREETYPE_H
  if (!fontFile && ftEngine) {
    fontFile = ftEngine->loadTrueTypeFont(idA,
#if LOAD_FONTS_FROM_MEM
            fontBuf,
#else
            fileName, deleteFile,
#endif
            fontNum, codeToGID, codeToGIDLen);
  }
#endif

  if (!fontFile) {
    gfree(codeToGID);
  }

#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
  // delete the (temporary) font file -- with Unix hard link
  // semantics, this will remove the last link; otherwise it will
  // return an error, leaving the file to be deleted later (if
  // loadXYZFont failed, the file will always be deleted)
  if (deleteFile) {
    unlink(fontFile ? fontFile->fileName->getCString() : fileName);
  }
#endif

  if (!fontFile) {
    badFontFiles->append(idA);
  }

  return fontFile;
}

SplashFont *SplashFontEngine::getFont(SplashFontFile *fontFile,
              SplashCoord *textMat,
              SplashCoord *ctm) {
  SplashCoord mat[4];
  SplashFont *font;
  int i, j;

  mat[0] = textMat[0] * ctm[0] + textMat[1] * ctm[2];
  mat[1] = -(textMat[0] * ctm[1] + textMat[1] * ctm[3]);
  mat[2] = textMat[2] * ctm[0] + textMat[3] * ctm[2];
  mat[3] = -(textMat[2] * ctm[1] + textMat[3] * ctm[3]);
  if (!splashCheckDet(mat[0], mat[1], mat[2], mat[3], 0.01)) {
    // avoid a singular (or close-to-singular) matrix
    mat[0] = 0.01;  mat[1] = 0;
    mat[2] = 0;     mat[3] = 0.01;
  }

  font = fontCache[0];
  if (font && font->matches(fontFile, mat, textMat)) {
    return font;
  }
  for (i = 1; i < splashFontCacheSize; ++i) {
    font = fontCache[i];
    if (font && font->matches(fontFile, mat, textMat)) {
      for (j = i; j > 0; --j) {
  fontCache[j] = fontCache[j-1];
      }
      fontCache[0] = font;
      return font;
    }
  }
  font = fontFile->makeFont(mat, textMat);
  if (fontCache[splashFontCacheSize - 1]) {
    delete fontCache[splashFontCacheSize - 1];
  }
  for (j = splashFontCacheSize - 1; j > 0; --j) {
    fontCache[j] = fontCache[j-1];
  }
  fontCache[0] = font;
  return font;
}

Coverage Report

Created: 2026-08-13 06:56

Line	Count	Source
1		//========================================================================
2		//
3		// SplashFontEngine.cc
4		//
5		// Copyright 2003-2013 Glyph & Cog, LLC
6		//
7		//========================================================================
8
9		#include <aconf.h>
10
11		#include <stdlib.h>
12		#include <stdio.h>
13		#ifndef _WIN32
14		# include <unistd.h>
15		#endif
16		#include "gmem.h"
17		#include "gmempp.h"
18		#include "GString.h"
19		#include "GList.h"
20		#include "SplashMath.h"
21		#include "SplashFTFontEngine.h"
22		#include "SplashFontFile.h"
23		#include "SplashFontFileID.h"
24		#include "SplashFont.h"
25		#include "SplashFontEngine.h"
26
27		#ifdef VMS
28		#if (__VMS_VER < 70000000)
29		extern "C" int unlink(char *filename);
30		#endif
31		#endif
32
33		//------------------------------------------------------------------------
34		// SplashFontEngine
35		//------------------------------------------------------------------------
36
37		SplashFontEngine::SplashFontEngine(
38		#if HAVE_FREETYPE_H
39		GBool enableFreeType,
40		Guint freeTypeFlags,
41		#endif
42	17.1k	GBool aa) {
43	17.1k	int i;
44
45	291k	for (i = 0; i < splashFontCacheSize; ++i) {
46	273k	fontCache[i] = NULL;
47	273k	}
48	17.1k	badFontFiles = new GList();
49
50	17.1k	#if HAVE_FREETYPE_H
51	17.1k	if (enableFreeType) {
52	17.1k	ftEngine = SplashFTFontEngine::init(aa, freeTypeFlags);
53	17.1k	} else {
54	0	ftEngine = NULL;
55	0	}
56	17.1k	#endif
57	17.1k	}
58
59	17.0k	SplashFontEngine::~SplashFontEngine() {
60	17.0k	int i;
61
62	290k	for (i = 0; i < splashFontCacheSize; ++i) {
63	273k	if (fontCache[i]) {
64	8.25k	delete fontCache[i];
65	8.25k	}
66	273k	}
67	17.0k	deleteGList(badFontFiles, SplashFontFileID);
68
69	17.0k	#if HAVE_FREETYPE_H
70	17.0k	if (ftEngine) {
71	17.0k	delete ftEngine;
72	17.0k	}
73	17.0k	#endif
74	17.0k	}
75
76	130k	SplashFontFile SplashFontEngine::getFontFile(SplashFontFileID id) {
77	130k	SplashFontFile *fontFile;
78	130k	int i;
79
80	1.73M	for (i = 0; i < splashFontCacheSize; ++i) {
81	1.63M	if (fontCache[i]) {
82	30.4k	fontFile = fontCache[i]->getFontFile();
83	30.4k	if (fontFile && fontFile->getID()->matches(id)) {
84	29.6k	return fontFile;
85	29.6k	}
86	30.4k	}
87	1.63M	}
88	100k	return NULL;
89	130k	}
90
91	145k	GBool SplashFontEngine::checkForBadFontFile(SplashFontFileID *id) {
92	149k	for (int i = 0; i < badFontFiles->getLength(); ++i) {
93	19.1k	if (((SplashFontFileID *)badFontFiles->get(i))->matches(id)) {
94	15.2k	return gTrue;
95	15.2k	}
96	19.1k	}
97	130k	return gFalse;
98	145k	}
99
100		SplashFontFile SplashFontEngine::loadType1Font(SplashFontFileID idA,
101		#if LOAD_FONTS_FROM_MEM
102		GString *fontBuf,
103		#else
104		char *fileName,
105		GBool deleteFile,
106		#endif
107	1.62k	const char **enc) {
108	1.62k	SplashFontFile *fontFile;
109
110	1.62k	fontFile = NULL;
111	1.62k	#if HAVE_FREETYPE_H
112	1.62k	if (!fontFile && ftEngine) {
113	1.62k	fontFile = ftEngine->loadType1Font(idA,
114		#if LOAD_FONTS_FROM_MEM
115		fontBuf,
116		#else
117	1.62k	fileName, deleteFile,
118	1.62k	#endif
119	1.62k	enc);
120	1.62k	}
121	1.62k	#endif
122
123	1.62k	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
124		// delete the (temporary) font file -- with Unix hard link
125		// semantics, this will remove the last link; otherwise it will
126		// return an error, leaving the file to be deleted later (if
127		// loadXYZFont failed, the file will always be deleted)
128	1.62k	if (deleteFile) {
129	1.62k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
130	1.62k	}
131	1.62k	#endif
132
133	1.62k	if (!fontFile) {
134	1.51k	badFontFiles->append(idA);
135	1.51k	}
136
137	1.62k	return fontFile;
138	1.62k	}
139
140		SplashFontFile SplashFontEngine::loadType1CFont(SplashFontFileID idA,
141		#if LOAD_FONTS_FROM_MEM
142		GString *fontBuf,
143		#else
144		char *fileName,
145		GBool deleteFile,
146		#endif
147		int *codeToGID,
148	1.75k	const char **enc) {
149	1.75k	SplashFontFile *fontFile;
150
151	1.75k	fontFile = NULL;
152	1.75k	if (!fontFile) {
153	1.75k	gfree(codeToGID);
154	1.75k	}
155	1.75k	#if HAVE_FREETYPE_H
156	1.75k	if (!fontFile && ftEngine) {
157	1.75k	fontFile = ftEngine->loadType1CFont(idA,
158		#if LOAD_FONTS_FROM_MEM
159		fontBuf,
160		#else
161	1.75k	fileName, deleteFile,
162	1.75k	#endif
163	1.75k	enc);
164	1.75k	}
165	1.75k	#endif
166
167	1.75k	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
168		// delete the (temporary) font file -- with Unix hard link
169		// semantics, this will remove the last link; otherwise it will
170		// return an error, leaving the file to be deleted later (if
171		// loadXYZFont failed, the file will always be deleted)
172	1.75k	if (deleteFile) {
173	1.75k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
174	1.75k	}
175	1.75k	#endif
176
177	1.75k	if (!fontFile) {
178	443	badFontFiles->append(idA);
179	443	}
180
181	1.75k	return fontFile;
182	1.75k	}
183
184		SplashFontFile SplashFontEngine::loadOpenTypeT1CFont(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	830	const char **enc) {
193	830	SplashFontFile *fontFile;
194
195	830	fontFile = NULL;
196	830	if (!fontFile) {
197	830	gfree(codeToGID);
198	830	}
199	830	#if HAVE_FREETYPE_H
200	830	if (!fontFile && ftEngine) {
201	830	fontFile = ftEngine->loadOpenTypeT1CFont(idA,
202		#if LOAD_FONTS_FROM_MEM
203		fontBuf,
204		#else
205	830	fileName, deleteFile,
206	830	#endif
207	830	enc);
208	830	}
209	830	#endif
210
211	830	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
212		// delete the (temporary) font file -- with Unix hard link
213		// semantics, this will remove the last link; otherwise it will
214		// return an error, leaving the file to be deleted later (if
215		// loadXYZFont failed, the file will always be deleted)
216	830	if (deleteFile) {
217	830	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
218	830	}
219	830	#endif
220
221	830	if (!fontFile) {
222	535	badFontFiles->append(idA);
223	535	}
224
225	830	return fontFile;
226	830	}
227
228		SplashFontFile SplashFontEngine::loadCIDFont(SplashFontFileID idA,
229		#if LOAD_FONTS_FROM_MEM
230		GString *fontBuf,
231		#else
232		char *fileName,
233		GBool deleteFile,
234		#endif
235		int *codeToGID,
236	45	int codeToGIDLen) {
237	45	SplashFontFile *fontFile;
238
239	45	fontFile = NULL;
240	45	#if HAVE_FREETYPE_H
241	45	if (!fontFile && ftEngine) {
242	45	fontFile = ftEngine->loadCIDFont(idA,
243		#if LOAD_FONTS_FROM_MEM
244		fontBuf,
245		#else
246	45	fileName, deleteFile,
247	45	#endif
248	45	codeToGID, codeToGIDLen);
249	45	}
250	45	#endif
251
252	45	if (!fontFile) {
253	17	gfree(codeToGID);
254	17	}
255
256	45	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
257		// delete the (temporary) font file -- with Unix hard link
258		// semantics, this will remove the last link; otherwise it will
259		// return an error, leaving the file to be deleted later (if
260		// loadXYZFont failed, the file will always be deleted)
261	45	if (deleteFile) {
262	45	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
263	45	}
264	45	#endif
265
266	45	if (!fontFile) {
267	17	badFontFiles->append(idA);
268	17	}
269
270	45	return fontFile;
271	45	}
272
273		SplashFontFile SplashFontEngine::loadOpenTypeCFFFont(SplashFontFileID idA,
274		#if LOAD_FONTS_FROM_MEM
275		GString *fontBuf,
276		#else
277		char *fileName,
278		GBool deleteFile,
279		#endif
280		int *codeToGID,
281	28	int codeToGIDLen) {
282	28	SplashFontFile *fontFile;
283
284	28	fontFile = NULL;
285	28	#if HAVE_FREETYPE_H
286	28	if (!fontFile && ftEngine) {
287	28	fontFile = ftEngine->loadOpenTypeCFFFont(idA,
288		#if LOAD_FONTS_FROM_MEM
289		fontBuf,
290		#else
291	28	fileName, deleteFile,
292	28	#endif
293	28	codeToGID, codeToGIDLen);
294	28	}
295	28	#endif
296
297	28	if (!fontFile) {
298	16	gfree(codeToGID);
299	16	}
300
301	28	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
302		// delete the (temporary) font file -- with Unix hard link
303		// semantics, this will remove the last link; otherwise it will
304		// return an error, leaving the file to be deleted later (if
305		// loadXYZFont failed, the file will always be deleted)
306	28	if (deleteFile) {
307	28	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
308	28	}
309	28	#endif
310
311	28	if (!fontFile) {
312	16	badFontFiles->append(idA);
313	16	}
314
315	28	return fontFile;
316	28	}
317
318		SplashFontFile SplashFontEngine::loadTrueTypeFont(SplashFontFileID idA,
319		#if LOAD_FONTS_FROM_MEM
320		GString *fontBuf,
321		#else
322		char *fileName,
323		GBool deleteFile,
324		#endif
325		int fontNum,
326		int *codeToGID,
327		int codeToGIDLen,
328	3.98k	char *fontName) {
329	3.98k	SplashFontFile *fontFile;
330
331	3.98k	fontFile = NULL;
332	3.98k	#if HAVE_FREETYPE_H
333	3.98k	if (!fontFile && ftEngine) {
334	3.98k	fontFile = ftEngine->loadTrueTypeFont(idA,
335		#if LOAD_FONTS_FROM_MEM
336		fontBuf,
337		#else
338	3.98k	fileName, deleteFile,
339	3.98k	#endif
340	3.98k	fontNum, codeToGID, codeToGIDLen);
341	3.98k	}
342	3.98k	#endif
343
344	3.98k	if (!fontFile) {
345	366	gfree(codeToGID);
346	366	}
347
348	3.98k	#if !LOAD_FONTS_FROM_MEM && !defined(_WIN32) && !defined(__ANDROID__)
349		// delete the (temporary) font file -- with Unix hard link
350		// semantics, this will remove the last link; otherwise it will
351		// return an error, leaving the file to be deleted later (if
352		// loadXYZFont failed, the file will always be deleted)
353	3.98k	if (deleteFile) {
354	3.98k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
355	3.98k	}
356	3.98k	#endif
357
358	3.98k	if (!fontFile) {
359	366	badFontFiles->append(idA);
360	366	}
361
362	3.98k	return fontFile;
363	3.98k	}
364
365		SplashFont SplashFontEngine::getFont(SplashFontFile fontFile,
366		SplashCoord *textMat,
367	34.9k	SplashCoord *ctm) {
368	34.9k	SplashCoord mat[4];
369	34.9k	SplashFont *font;
370	34.9k	int i, j;
371
372	34.9k	mat[0] = textMat[0] * ctm[0] + textMat[1] * ctm[2];
373	34.9k	mat[1] = -(textMat[0] * ctm[1] + textMat[1] * ctm[3]);
374	34.9k	mat[2] = textMat[2] * ctm[0] + textMat[3] * ctm[2];
375	34.9k	mat[3] = -(textMat[2] * ctm[1] + textMat[3] * ctm[3]);
376	34.9k	if (!splashCheckDet(mat[0], mat[1], mat[2], mat[3], 0.01)) {
377		// avoid a singular (or close-to-singular) matrix
378	34.9k	mat[0] = 0.01; mat[1] = 0;
379	34.9k	mat[2] = 0; mat[3] = 0.01;
380	34.9k	}
381
382	34.9k	font = fontCache[0];
383	34.9k	if (font && font->matches(fontFile, mat, textMat)) {
384	26.2k	return font;
385	26.2k	}
386	134k	for (i = 1; i < splashFontCacheSize; ++i) {
387	126k	font = fontCache[i];
388	126k	if (font && font->matches(fontFile, mat, textMat)) {
389	1.65k	for (j = i; j > 0; --j) {
390	1.24k	fontCache[j] = fontCache[j-1];
391	1.24k	}
392	408	fontCache[0] = font;
393	408	return font;
394	408	}
395	126k	}
396	8.33k	font = fontFile->makeFont(mat, textMat);
397	8.33k	if (fontCache[splashFontCacheSize - 1]) {
398	82	delete fontCache[splashFontCacheSize - 1];
399	82	}
400	133k	for (j = splashFontCacheSize - 1; j > 0; --j) {
401	125k	fontCache[j] = fontCache[j-1];
402	125k	}
403	8.33k	fontCache[0] = font;
404	8.33k	return font;
405	8.74k	}