/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: 2026-07-16 06:50

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	17.6k	GBool aa) {
43	17.6k	int i;
44
45	300k	for (i = 0; i < splashFontCacheSize; ++i) {
46	283k	fontCache[i] = NULL;
47	283k	}
48	17.6k	badFontFiles = new GList();
49
50	17.6k	#if HAVE_FREETYPE_H
51	17.6k	if (enableFreeType) {
52	17.6k	ftEngine = SplashFTFontEngine::init(aa, freeTypeFlags);
53	17.6k	} else {
54	0	ftEngine = NULL;
55	0	}
56	17.6k	#endif
57	17.6k	}
58
59	17.6k	SplashFontEngine::~SplashFontEngine() {
60	17.6k	int i;
61
62	300k	for (i = 0; i < splashFontCacheSize; ++i) {
63	282k	if (fontCache[i]) {
64	8.69k	delete fontCache[i];
65	8.69k	}
66	282k	}
67	17.6k	deleteGList(badFontFiles, SplashFontFileID);
68
69	17.6k	#if HAVE_FREETYPE_H
70	17.6k	if (ftEngine) {
71	17.6k	delete ftEngine;
72	17.6k	}
73	17.6k	#endif
74	17.6k	}
75
76	109k	SplashFontFile SplashFontEngine::getFontFile(SplashFontFileID id) {
77	109k	SplashFontFile *fontFile;
78	109k	int i;
79
80	1.22M	for (i = 0; i < splashFontCacheSize; ++i) {
81	1.15M	if (fontCache[i]) {
82	41.0k	fontFile = fontCache[i]->getFontFile();
83	41.0k	if (fontFile && fontFile->getID()->matches(id)) {
84	39.7k	return fontFile;
85	39.7k	}
86	41.0k	}
87	1.15M	}
88	69.4k	return NULL;
89	109k	}
90
91	122k	GBool SplashFontEngine::checkForBadFontFile(SplashFontFileID *id) {
92	127k	for (int i = 0; i < badFontFiles->getLength(); ++i) {
93	18.3k	if (((SplashFontFileID *)badFontFiles->get(i))->matches(id)) {
94	13.3k	return gTrue;
95	13.3k	}
96	18.3k	}
97	109k	return gFalse;
98	122k	}
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	1.73k	const char **enc) {
108	1.73k	SplashFontFile *fontFile;
109
110	1.73k	fontFile = NULL;
111	1.73k	#if HAVE_FREETYPE_H
112	1.73k	if (!fontFile && ftEngine) {
113	1.73k	fontFile = ftEngine->loadType1Font(idA,
114		#if LOAD_FONTS_FROM_MEM
115		fontBuf,
116		#else
117	1.73k	fileName, deleteFile,
118	1.73k	#endif
119	1.73k	enc);
120	1.73k	}
121	1.73k	#endif
122
123	1.73k	#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	1.73k	if (deleteFile) {
129	1.73k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
130	1.73k	}
131	1.73k	#endif
132
133	1.73k	if (!fontFile) {
134	1.61k	badFontFiles->append(idA);
135	1.61k	}
136
137	1.73k	return fontFile;
138	1.73k	}
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	1.77k	const char **enc) {
149	1.77k	SplashFontFile *fontFile;
150
151	1.77k	fontFile = NULL;
152	1.77k	if (!fontFile) {
153	1.77k	gfree(codeToGID);
154	1.77k	}
155	1.77k	#if HAVE_FREETYPE_H
156	1.77k	if (!fontFile && ftEngine) {
157	1.77k	fontFile = ftEngine->loadType1CFont(idA,
158		#if LOAD_FONTS_FROM_MEM
159		fontBuf,
160		#else
161	1.77k	fileName, deleteFile,
162	1.77k	#endif
163	1.77k	enc);
164	1.77k	}
165	1.77k	#endif
166
167	1.77k	#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	1.77k	if (deleteFile) {
173	1.77k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
174	1.77k	}
175	1.77k	#endif
176
177	1.77k	if (!fontFile) {
178	430	badFontFiles->append(idA);
179	430	}
180
181	1.77k	return fontFile;
182	1.77k	}
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	795	const char **enc) {
193	795	SplashFontFile *fontFile;
194
195	795	fontFile = NULL;
196	795	if (!fontFile) {
197	795	gfree(codeToGID);
198	795	}
199	795	#if HAVE_FREETYPE_H
200	795	if (!fontFile && ftEngine) {
201	795	fontFile = ftEngine->loadOpenTypeT1CFont(idA,
202		#if LOAD_FONTS_FROM_MEM
203		fontBuf,
204		#else
205	795	fileName, deleteFile,
206	795	#endif
207	795	enc);
208	795	}
209	795	#endif
210
211	795	#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	795	if (deleteFile) {
217	795	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
218	795	}
219	795	#endif
220
221	795	if (!fontFile) {
222	577	badFontFiles->append(idA);
223	577	}
224
225	795	return fontFile;
226	795	}
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	53	int codeToGIDLen) {
237	53	SplashFontFile *fontFile;
238
239	53	fontFile = NULL;
240	53	#if HAVE_FREETYPE_H
241	53	if (!fontFile && ftEngine) {
242	53	fontFile = ftEngine->loadCIDFont(idA,
243		#if LOAD_FONTS_FROM_MEM
244		fontBuf,
245		#else
246	53	fileName, deleteFile,
247	53	#endif
248	53	codeToGID, codeToGIDLen);
249	53	}
250	53	#endif
251
252	53	if (!fontFile) {
253	26	gfree(codeToGID);
254	26	}
255
256	53	#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	53	if (deleteFile) {
262	53	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
263	53	}
264	53	#endif
265
266	53	if (!fontFile) {
267	26	badFontFiles->append(idA);
268	26	}
269
270	53	return fontFile;
271	53	}
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	63	int codeToGIDLen) {
282	63	SplashFontFile *fontFile;
283
284	63	fontFile = NULL;
285	63	#if HAVE_FREETYPE_H
286	63	if (!fontFile && ftEngine) {
287	63	fontFile = ftEngine->loadOpenTypeCFFFont(idA,
288		#if LOAD_FONTS_FROM_MEM
289		fontBuf,
290		#else
291	63	fileName, deleteFile,
292	63	#endif
293	63	codeToGID, codeToGIDLen);
294	63	}
295	63	#endif
296
297	63	if (!fontFile) {
298	20	gfree(codeToGID);
299	20	}
300
301	63	#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	63	if (deleteFile) {
307	63	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
308	63	}
309	63	#endif
310
311	63	if (!fontFile) {
312	20	badFontFiles->append(idA);
313	20	}
314
315	63	return fontFile;
316	63	}
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	4.06k	char *fontName) {
329	4.06k	SplashFontFile *fontFile;
330
331	4.06k	fontFile = NULL;
332	4.06k	#if HAVE_FREETYPE_H
333	4.06k	if (!fontFile && ftEngine) {
334	4.06k	fontFile = ftEngine->loadTrueTypeFont(idA,
335		#if LOAD_FONTS_FROM_MEM
336		fontBuf,
337		#else
338	4.06k	fileName, deleteFile,
339	4.06k	#endif
340	4.06k	fontNum, codeToGID, codeToGIDLen);
341	4.06k	}
342	4.06k	#endif
343
344	4.06k	if (!fontFile) {
345	404	gfree(codeToGID);
346	404	}
347
348	4.06k	#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	4.06k	if (deleteFile) {
354	4.06k	unlink(fontFile ? fontFile->fileName->getCString() : fileName);
355	4.06k	}
356	4.06k	#endif
357
358	4.06k	if (!fontFile) {
359	404	badFontFiles->append(idA);
360	404	}
361
362	4.06k	return fontFile;
363	4.06k	}
364
365		SplashFont SplashFontEngine::getFont(SplashFontFile fontFile,
366		SplashCoord *textMat,
367	45.1k	SplashCoord *ctm) {
368	45.1k	SplashCoord mat[4];
369	45.1k	SplashFont *font;
370	45.1k	int i, j;
371
372	45.1k	mat[0] = textMat[0] * ctm[0] + textMat[1] * ctm[2];
373	45.1k	mat[1] = -(textMat[0] * ctm[1] + textMat[1] * ctm[3]);
374	45.1k	mat[2] = textMat[2] * ctm[0] + textMat[3] * ctm[2];
375	45.1k	mat[3] = -(textMat[2] * ctm[1] + textMat[3] * ctm[3]);
376	45.1k	if (!splashCheckDet(mat[0], mat[1], mat[2], mat[3], 0.01)) {
377		// avoid a singular (or close-to-singular) matrix
378	45.1k	mat[0] = 0.01; mat[1] = 0;
379	45.1k	mat[2] = 0; mat[3] = 0.01;
380	45.1k	}
381
382	45.1k	font = fontCache[0];
383	45.1k	if (font && font->matches(fontFile, mat, textMat)) {
384	35.8k	return font;
385	35.8k	}
386	141k	for (i = 1; i < splashFontCacheSize; ++i) {
387	133k	font = fontCache[i];
388	133k	if (font && font->matches(fontFile, mat, textMat)) {
389	2.04k	for (j = i; j > 0; --j) {
390	1.51k	fontCache[j] = fontCache[j-1];
391	1.51k	}
392	522	fontCache[0] = font;
393	522	return font;
394	522	}
395	133k	}
396	8.77k	font = fontFile->makeFont(mat, textMat);
397	8.77k	if (fontCache[splashFontCacheSize - 1]) {
398	73	delete fontCache[splashFontCacheSize - 1];
399	73	}
400	140k	for (j = splashFontCacheSize - 1; j > 0; --j) {
401	131k	fontCache[j] = fontCache[j-1];
402	131k	}
403	8.77k	fontCache[0] = font;
404	8.77k	return font;
405	9.29k	}