1 /*
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 % %
4 % %
5 % %
6 % TTTTT TTTTT FFFFF %
7 % T T F %
8 % T T FFF %
9 % T T F %
10 % T T F %
11 % %
12 % %
13 % Return A Preview For A TrueType or Postscript Font %
14 % %
15 % Software Design %
16 % Cristy %
17 % July 1992 %
18 % %
19 % %
20 % Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
22 % %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
25 % %
26 % http://www.imagemagick.org/script/license.php %
27 % %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
33 % %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 %
36 %
37 */
38
39 /*
40 Include declarations.
41 */
42 #include "MagickCore/studio.h"
43 #include "MagickCore/blob.h"
44 #include "MagickCore/blob-private.h"
45 #include "MagickCore/draw.h"
46 #include "MagickCore/exception.h"
47 #include "MagickCore/exception-private.h"
48 #include "MagickCore/image.h"
49 #include "MagickCore/image-private.h"
50 #include "MagickCore/list.h"
51 #include "MagickCore/magick.h"
52 #include "MagickCore/memory_.h"
53 #include "MagickCore/quantum-private.h"
54 #include "MagickCore/static.h"
55 #include "MagickCore/string_.h"
56 #include "MagickCore/module.h"
57 #include "MagickCore/type.h"
58 #include "MagickWand/MagickWand.h"
59 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
60 #include <ft2build.h>
61 #if defined(FT_FREETYPE_H)
62 # include FT_FREETYPE_H
63 #else
64 # include <freetype/freetype.h>
65 #endif
66 #endif
67
68 /*
69 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
70 % %
71 % %
72 % %
73 % I s P F A %
74 % %
75 % %
76 % %
77 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
78 %
79 % IsPFA()() returns MagickTrue if the image format type, identified by the
80 % magick string, is PFA.
81 %
82 % The format of the IsPFA method is:
83 %
84 % MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)
85 %
86 % A description of each parameter follows:
87 %
88 % o magick: compare image format pattern against these bytes.
89 %
90 % o length: Specifies the length of the magick string.
91 %
92 %
93 */
IsPFA(const unsigned char * magick,const size_t length)94 static MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)
95 {
96 if (length < 14)
97 return(MagickFalse);
98 if (LocaleNCompare((char *) magick,"%!PS-AdobeFont",14) == 0)
99 return(MagickTrue);
100 return(MagickFalse);
101 }
102
103 /*
104 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
105 % %
106 % %
107 % %
108 % I s T T F %
109 % %
110 % %
111 % %
112 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
113 %
114 % IsTTF()() returns MagickTrue if the image format type, identified by the
115 % magick string, is TTF.
116 %
117 % The format of the IsTTF method is:
118 %
119 % MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)
120 %
121 % A description of each parameter follows:
122 %
123 % o magick: compare image format pattern against these bytes.
124 %
125 % o length: Specifies the length of the magick string.
126 %
127 %
128 */
IsTTF(const unsigned char * magick,const size_t length)129 static MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)
130 {
131 if (length < 5)
132 return(MagickFalse);
133 if (((int) magick[0] == 0x00) && ((int) magick[1] == 0x01) &&
134 ((int) magick[2] == 0x00) && ((int) magick[3] == 0x00) &&
135 ((int) magick[4] == 0x00))
136 return(MagickTrue);
137 return(MagickFalse);
138 }
139
140 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
141 /*
142 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
143 % %
144 % %
145 % %
146 % R e a d T T F I m a g e %
147 % %
148 % %
149 % %
150 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
151 %
152 % ReadTTFImage() reads a TrueType font file and returns it. It
153 % allocates the memory necessary for the new Image structure and returns a
154 % pointer to the new image.
155 %
156 % The format of the ReadTTFImage method is:
157 %
158 % Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)
159 %
160 % A description of each parameter follows:
161 %
162 % o image_info: the image info.
163 %
164 % o exception: return any errors or warnings in this structure.
165 %
166 */
ReadTTFImage(const ImageInfo * image_info,ExceptionInfo * exception)167 static Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)
168 {
169 char
170 buffer[MagickPathExtent],
171 *text;
172
173 const char
174 *Text = (char *)
175 "abcdefghijklmnopqrstuvwxyz\n"
176 "ABCDEFGHIJKLMNOPQRSTUVWXYZ\n"
177 "0123456789.:,;(*!?}^)#${%^&-+@\n";
178
179 const TypeInfo
180 *type_info;
181
182 DrawInfo
183 *draw_info;
184
185 Image
186 *image;
187
188 MagickBooleanType
189 status;
190
191 PixelInfo
192 background_color;
193
194 register ssize_t
195 i,
196 x;
197
198 register Quantum
199 *q;
200
201 ssize_t
202 y;
203
204 /*
205 Open image file.
206 */
207 assert(image_info != (const ImageInfo *) NULL);
208 assert(image_info->signature == MagickCoreSignature);
209 if (image_info->debug != MagickFalse)
210 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
211 image_info->filename);
212 assert(exception != (ExceptionInfo *) NULL);
213 assert(exception->signature == MagickCoreSignature);
214 image=AcquireImage(image_info,exception);
215 image->columns=800;
216 image->rows=480;
217 type_info=GetTypeInfo(image_info->filename,exception);
218 if ((type_info != (const TypeInfo *) NULL) &&
219 (type_info->glyphs != (char *) NULL))
220 (void) CopyMagickString(image->filename,type_info->glyphs,MagickPathExtent);
221 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
222 if (status == MagickFalse)
223 {
224 image=DestroyImageList(image);
225 return((Image *) NULL);
226 }
227 status=SetImageExtent(image,image->columns,image->rows,exception);
228 if (status == MagickFalse)
229 return(DestroyImageList(image));
230 /*
231 Color canvas with background color
232 */
233 background_color=image_info->background_color;
234 for (y=0; y < (ssize_t) image->rows; y++)
235 {
236 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
237 if (q == (Quantum *) NULL)
238 break;
239 for (x=0; x < (ssize_t) image->columns; x++)
240 {
241 SetPixelViaPixelInfo(image,&background_color,q);
242 q+=GetPixelChannels(image);
243 }
244 if (SyncAuthenticPixels(image,exception) == MagickFalse)
245 break;
246 }
247 (void) CopyMagickString(image->magick,image_info->magick,MagickPathExtent);
248 (void) CopyMagickString(image->filename,image_info->filename,MagickPathExtent);
249 /*
250 Prepare drawing commands
251 */
252 y=20;
253 draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);
254 draw_info->font=AcquireString(image->filename);
255 ConcatenateString(&draw_info->primitive,"push graphic-context\n");
256 (void) FormatLocaleString(buffer,MagickPathExtent," viewbox 0 0 %.20g %.20g\n",
257 (double) image->columns,(double) image->rows);
258 ConcatenateString(&draw_info->primitive,buffer);
259 ConcatenateString(&draw_info->primitive," font-size 18\n");
260 (void) FormatLocaleString(buffer,MagickPathExtent," text 10,%.20g '",(double) y);
261 ConcatenateString(&draw_info->primitive,buffer);
262 text=EscapeString(Text,'"');
263 ConcatenateString(&draw_info->primitive,text);
264 text=DestroyString(text);
265 (void) FormatLocaleString(buffer,MagickPathExtent,"'\n");
266 ConcatenateString(&draw_info->primitive,buffer);
267 y+=20*(ssize_t) MultilineCensus((char *) Text)+20;
268 for (i=12; i <= 72; i+=6)
269 {
270 y+=i+12;
271 ConcatenateString(&draw_info->primitive," font-size 18\n");
272 (void) FormatLocaleString(buffer,MagickPathExtent," text 10,%.20g '%.20g'\n",
273 (double) y,(double) i);
274 ConcatenateString(&draw_info->primitive,buffer);
275 (void) FormatLocaleString(buffer,MagickPathExtent," font-size %.20g\n",
276 (double) i);
277 ConcatenateString(&draw_info->primitive,buffer);
278 (void) FormatLocaleString(buffer,MagickPathExtent," text 50,%.20g "
279 "'That which does not destroy me, only makes me stronger.'\n",(double) y);
280 ConcatenateString(&draw_info->primitive,buffer);
281 if (i >= 24)
282 i+=6;
283 }
284 ConcatenateString(&draw_info->primitive,"pop graphic-context");
285 (void) DrawImage(image,draw_info,exception);
286 /*
287 Relinquish resources.
288 */
289 draw_info=DestroyDrawInfo(draw_info);
290 (void) CloseBlob(image);
291 return(GetFirstImageInList(image));
292 }
293 #endif /* MAGICKCORE_FREETYPE_DELEGATE */
294
295 /*
296 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
297 % %
298 % %
299 % %
300 % R e g i s t e r T T F I m a g e %
301 % %
302 % %
303 % %
304 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
305 %
306 % RegisterTTFImage() adds attributes for the TTF image format to
307 % the list of supported formats. The attributes include the image format
308 % tag, a method to read and/or write the format, whether the format
309 % supports the saving of more than one frame to the same file or blob,
310 % whether the format supports native in-memory I/O, and a brief
311 % description of the format.
312 %
313 % The format of the RegisterTTFImage method is:
314 %
315 % size_t RegisterTTFImage(void)
316 %
317 */
RegisterTTFImage(void)318 ModuleExport size_t RegisterTTFImage(void)
319 {
320 char
321 version[MagickPathExtent];
322
323 MagickInfo
324 *entry;
325
326 *version='\0';
327 #if defined(FREETYPE_MAJOR) && defined(FREETYPE_MINOR) && defined(FREETYPE_PATCH)
328 (void) FormatLocaleString(version,MagickPathExtent,"Freetype %d.%d.%d",
329 FREETYPE_MAJOR,FREETYPE_MINOR,FREETYPE_PATCH);
330 #endif
331 entry=AcquireMagickInfo("TTF","DFONT","Multi-face font package");
332 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
333 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
334 #endif
335 entry->magick=(IsImageFormatHandler *) IsTTF;
336 entry->flags^=CoderAdjoinFlag;
337 if (*version != '\0')
338 entry->version=ConstantString(version);
339 (void) RegisterMagickInfo(entry);
340 entry=AcquireMagickInfo("TTF","PFA","Postscript Type 1 font (ASCII)");
341 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
342 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
343 #endif
344 entry->magick=(IsImageFormatHandler *) IsPFA;
345 entry->flags^=CoderAdjoinFlag;
346 if (*version != '\0')
347 entry->version=ConstantString(version);
348 (void) RegisterMagickInfo(entry);
349 entry=AcquireMagickInfo("TTF","PFB","Postscript Type 1 font (binary)");
350 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
351 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
352 #endif
353 entry->magick=(IsImageFormatHandler *) IsPFA;
354 entry->flags^=CoderAdjoinFlag;
355 if (*version != '\0')
356 entry->version=ConstantString(version);
357 (void) RegisterMagickInfo(entry);
358 entry=AcquireMagickInfo("TTF","OTF","Open Type font");
359 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
360 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
361 #endif
362 entry->magick=(IsImageFormatHandler *) IsTTF;
363 entry->flags^=CoderAdjoinFlag;
364 if (*version != '\0')
365 entry->version=ConstantString(version);
366 (void) RegisterMagickInfo(entry);
367 entry=AcquireMagickInfo("TTF","TTC","TrueType font collection");
368 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
369 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
370 #endif
371 entry->magick=(IsImageFormatHandler *) IsTTF;
372 entry->flags^=CoderAdjoinFlag;
373 if (*version != '\0')
374 entry->version=ConstantString(version);
375 (void) RegisterMagickInfo(entry);
376 entry=AcquireMagickInfo("TTF","TTF","TrueType font");
377 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
378 entry->decoder=(DecodeImageHandler *) ReadTTFImage;
379 #endif
380 entry->magick=(IsImageFormatHandler *) IsTTF;
381 entry->flags^=CoderAdjoinFlag;
382 if (*version != '\0')
383 entry->version=ConstantString(version);
384 (void) RegisterMagickInfo(entry);
385 return(MagickImageCoderSignature);
386 }
387
388 /*
389 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
390 % %
391 % %
392 % %
393 % U n r e g i s t e r T T F I m a g e %
394 % %
395 % %
396 % %
397 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
398 %
399 % UnregisterTTFImage() removes format registrations made by the
400 % TTF module from the list of supported formats.
401 %
402 % The format of the UnregisterTTFImage method is:
403 %
404 % UnregisterTTFImage(void)
405 %
406 */
UnregisterTTFImage(void)407 ModuleExport void UnregisterTTFImage(void)
408 {
409 (void) UnregisterMagickInfo("TTF");
410 (void) UnregisterMagickInfo("TTC");
411 (void) UnregisterMagickInfo("OTF");
412 (void) UnregisterMagickInfo("PFA");
413 (void) UnregisterMagickInfo("PFB");
414 (void) UnregisterMagickInfo("PFA");
415 (void) UnregisterMagickInfo("DFONT");
416 }
417