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 /* 41 Include declarations. 42 */ 43 #include "MagickCore/studio.h" 44 #include "MagickCore/blob.h" 45 #include "MagickCore/blob-private.h" 46 #include "MagickCore/draw.h" 47 #include "MagickCore/exception.h" 48 #include "MagickCore/exception-private.h" 49 #include "MagickCore/image.h" 50 #include "MagickCore/image-private.h" 51 #include "MagickCore/list.h" 52 #include "MagickCore/magick.h" 53 #include "MagickCore/memory_.h" 54 #include "MagickCore/quantum-private.h" 55 #include "MagickCore/static.h" 56 #include "MagickCore/string_.h" 57 #include "MagickCore/module.h" 58 #include "MagickCore/type.h" 59 #include "MagickWand/MagickWand.h" 60 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 61 #include <ft2build.h> 62 #if defined(FT_FREETYPE_H) 63 # include FT_FREETYPE_H 64 #else 65 # include <freetype/freetype.h> 66 #endif 67 #endif 68 69 /* 71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 72 % % 73 % % 74 % % 75 % I s P F A % 76 % % 77 % % 78 % % 79 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 80 % 81 % IsPFA()() returns MagickTrue if the image format type, identified by the 82 % magick string, is PFA. 83 % 84 % The format of the IsPFA method is: 85 % 86 % MagickBooleanType IsPFA(const unsigned char *magick,const size_t length) 87 % 88 % A description of each parameter follows: 89 % 90 % o magick: compare image format pattern against these bytes. 91 % 92 % o length: Specifies the length of the magick string. 93 % 94 % 95 */ 96 static MagickBooleanType IsPFA(const unsigned char *magick,const size_t length) 97 { 98 if (length < 14) 99 return(MagickFalse); 100 if (LocaleNCompare((char *) magick,"%!PS-AdobeFont",14) == 0) 101 return(MagickTrue); 102 return(MagickFalse); 103 } 104 105 /* 107 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 108 % % 109 % % 110 % % 111 % I s T T F % 112 % % 113 % % 114 % % 115 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 116 % 117 % IsTTF()() returns MagickTrue if the image format type, identified by the 118 % magick string, is TTF. 119 % 120 % The format of the IsTTF method is: 121 % 122 % MagickBooleanType IsTTF(const unsigned char *magick,const size_t length) 123 % 124 % A description of each parameter follows: 125 % 126 % o magick: compare image format pattern against these bytes. 127 % 128 % o length: Specifies the length of the magick string. 129 % 130 % 131 */ 132 static MagickBooleanType IsTTF(const unsigned char *magick,const size_t length) 133 { 134 if (length < 5) 135 return(MagickFalse); 136 if (((int) magick[0] == 0x00) && ((int) magick[1] == 0x01) && 137 ((int) magick[2] == 0x00) && ((int) magick[3] == 0x00) && 138 ((int) magick[4] == 0x00)) 139 return(MagickTrue); 140 return(MagickFalse); 141 } 142 143 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 145 /* 146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 147 % % 148 % % 149 % % 150 % R e a d T T F I m a g e % 151 % % 152 % % 153 % % 154 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 155 % 156 % ReadTTFImage() reads a TrueType font file and returns it. It 157 % allocates the memory necessary for the new Image structure and returns a 158 % pointer to the new image. 159 % 160 % The format of the ReadTTFImage method is: 161 % 162 % Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception) 163 % 164 % A description of each parameter follows: 165 % 166 % o image_info: the image info. 167 % 168 % o exception: return any errors or warnings in this structure. 169 % 170 */ 171 static Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception) 172 { 173 char 174 buffer[MagickPathExtent], 175 *text; 176 177 const char 178 *Text = (char *) 179 "abcdefghijklmnopqrstuvwxyz\n" 180 "ABCDEFGHIJKLMNOPQRSTUVWXYZ\n" 181 "0123456789.:,;(*!?}^)#${%^&-+@\n"; 182 183 const TypeInfo 184 *type_info; 185 186 DrawInfo 187 *draw_info; 188 189 Image 190 *image; 191 192 MagickBooleanType 193 status; 194 195 PixelInfo 196 background_color; 197 198 register ssize_t 199 i, 200 x; 201 202 register Quantum 203 *q; 204 205 ssize_t 206 y; 207 208 /* 209 Open image file. 210 */ 211 assert(image_info != (const ImageInfo *) NULL); 212 assert(image_info->signature == MagickCoreSignature); 213 if (image_info->debug != MagickFalse) 214 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", 215 image_info->filename); 216 assert(exception != (ExceptionInfo *) NULL); 217 assert(exception->signature == MagickCoreSignature); 218 image=AcquireImage(image_info,exception); 219 image->columns=800; 220 image->rows=480; 221 type_info=GetTypeInfo(image_info->filename,exception); 222 if ((type_info != (const TypeInfo *) NULL) && 223 (type_info->glyphs != (char *) NULL)) 224 (void) CopyMagickString(image->filename,type_info->glyphs,MagickPathExtent); 225 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); 226 if (status == MagickFalse) 227 { 228 image=DestroyImageList(image); 229 return((Image *) NULL); 230 } 231 status=SetImageExtent(image,image->columns,image->rows,exception); 232 if (status == MagickFalse) 233 return(DestroyImageList(image)); 234 /* 235 Color canvas with background color 236 */ 237 background_color=image_info->background_color; 238 for (y=0; y < (ssize_t) image->rows; y++) 239 { 240 q=QueueAuthenticPixels(image,0,y,image->columns,1,exception); 241 if (q == (Quantum *) NULL) 242 break; 243 for (x=0; x < (ssize_t) image->columns; x++) 244 { 245 SetPixelViaPixelInfo(image,&background_color,q); 246 q+=GetPixelChannels(image); 247 } 248 if (SyncAuthenticPixels(image,exception) == MagickFalse) 249 break; 250 } 251 (void) CopyMagickString(image->magick,image_info->magick,MagickPathExtent); 252 (void) CopyMagickString(image->filename,image_info->filename,MagickPathExtent); 253 /* 254 Prepare drawing commands 255 */ 256 y=20; 257 draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL); 258 draw_info->font=AcquireString(image->filename); 259 ConcatenateString(&draw_info->primitive,"push graphic-context\n"); 260 (void) FormatLocaleString(buffer,MagickPathExtent," viewbox 0 0 %.20g %.20g\n", 261 (double) image->columns,(double) image->rows); 262 ConcatenateString(&draw_info->primitive,buffer); 263 ConcatenateString(&draw_info->primitive," font-size 18\n"); 264 (void) FormatLocaleString(buffer,MagickPathExtent," text 10,%.20g '",(double) y); 265 ConcatenateString(&draw_info->primitive,buffer); 266 text=EscapeString(Text,'"'); 267 ConcatenateString(&draw_info->primitive,text); 268 text=DestroyString(text); 269 (void) FormatLocaleString(buffer,MagickPathExtent,"'\n"); 270 ConcatenateString(&draw_info->primitive,buffer); 271 y+=20*(ssize_t) MultilineCensus((char *) Text)+20; 272 for (i=12; i <= 72; i+=6) 273 { 274 y+=i+12; 275 ConcatenateString(&draw_info->primitive," font-size 18\n"); 276 (void) FormatLocaleString(buffer,MagickPathExtent," text 10,%.20g '%.20g'\n", 277 (double) y,(double) i); 278 ConcatenateString(&draw_info->primitive,buffer); 279 (void) FormatLocaleString(buffer,MagickPathExtent," font-size %.20g\n", 280 (double) i); 281 ConcatenateString(&draw_info->primitive,buffer); 282 (void) FormatLocaleString(buffer,MagickPathExtent," text 50,%.20g " 283 "'That which does not destroy me, only makes me stronger.'\n",(double) y); 284 ConcatenateString(&draw_info->primitive,buffer); 285 if (i >= 24) 286 i+=6; 287 } 288 ConcatenateString(&draw_info->primitive,"pop graphic-context"); 289 (void) DrawImage(image,draw_info,exception); 290 /* 291 Relinquish resources. 292 */ 293 draw_info=DestroyDrawInfo(draw_info); 294 (void) CloseBlob(image); 295 return(GetFirstImageInList(image)); 296 } 297 #endif /* MAGICKCORE_FREETYPE_DELEGATE */ 298 299 /* 301 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 302 % % 303 % % 304 % % 305 % R e g i s t e r T T F I m a g e % 306 % % 307 % % 308 % % 309 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 310 % 311 % RegisterTTFImage() adds attributes for the TTF image format to 312 % the list of supported formats. The attributes include the image format 313 % tag, a method to read and/or write the format, whether the format 314 % supports the saving of more than one frame to the same file or blob, 315 % whether the format supports native in-memory I/O, and a brief 316 % description of the format. 317 % 318 % The format of the RegisterTTFImage method is: 319 % 320 % size_t RegisterTTFImage(void) 321 % 322 */ 323 ModuleExport size_t RegisterTTFImage(void) 324 { 325 char 326 version[MagickPathExtent]; 327 328 MagickInfo 329 *entry; 330 331 *version='\0'; 332 #if defined(FREETYPE_MAJOR) && defined(FREETYPE_MINOR) && defined(FREETYPE_PATCH) 333 (void) FormatLocaleString(version,MagickPathExtent,"Freetype %d.%d.%d", 334 FREETYPE_MAJOR,FREETYPE_MINOR,FREETYPE_PATCH); 335 #endif 336 entry=AcquireMagickInfo("TTF","DFONT","Multi-face font package"); 337 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 338 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 339 #endif 340 entry->magick=(IsImageFormatHandler *) IsTTF; 341 entry->flags^=CoderAdjoinFlag; 342 if (*version != '\0') 343 entry->version=ConstantString(version); 344 (void) RegisterMagickInfo(entry); 345 entry=AcquireMagickInfo("TTF","PFA","Postscript Type 1 font (ASCII)"); 346 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 347 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 348 #endif 349 entry->magick=(IsImageFormatHandler *) IsPFA; 350 entry->flags^=CoderAdjoinFlag; 351 if (*version != '\0') 352 entry->version=ConstantString(version); 353 (void) RegisterMagickInfo(entry); 354 entry=AcquireMagickInfo("TTF","PFB","Postscript Type 1 font (binary)"); 355 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 356 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 357 #endif 358 entry->magick=(IsImageFormatHandler *) IsPFA; 359 entry->flags^=CoderAdjoinFlag; 360 if (*version != '\0') 361 entry->version=ConstantString(version); 362 (void) RegisterMagickInfo(entry); 363 entry=AcquireMagickInfo("TTF","OTF","Open Type font"); 364 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 365 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 366 #endif 367 entry->magick=(IsImageFormatHandler *) IsTTF; 368 entry->flags^=CoderAdjoinFlag; 369 if (*version != '\0') 370 entry->version=ConstantString(version); 371 (void) RegisterMagickInfo(entry); 372 entry=AcquireMagickInfo("TTF","TTC","TrueType font collection"); 373 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 374 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 375 #endif 376 entry->magick=(IsImageFormatHandler *) IsTTF; 377 entry->flags^=CoderAdjoinFlag; 378 if (*version != '\0') 379 entry->version=ConstantString(version); 380 (void) RegisterMagickInfo(entry); 381 entry=AcquireMagickInfo("TTF","TTF","TrueType font"); 382 #if defined(MAGICKCORE_FREETYPE_DELEGATE) 383 entry->decoder=(DecodeImageHandler *) ReadTTFImage; 384 #endif 385 entry->magick=(IsImageFormatHandler *) IsTTF; 386 entry->flags^=CoderAdjoinFlag; 387 if (*version != '\0') 388 entry->version=ConstantString(version); 389 (void) RegisterMagickInfo(entry); 390 return(MagickImageCoderSignature); 391 } 392 393 /* 395 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 396 % % 397 % % 398 % % 399 % U n r e g i s t e r T T F I m a g e % 400 % % 401 % % 402 % % 403 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 404 % 405 % UnregisterTTFImage() removes format registrations made by the 406 % TTF module from the list of supported formats. 407 % 408 % The format of the UnregisterTTFImage method is: 409 % 410 % UnregisterTTFImage(void) 411 % 412 */ 413 ModuleExport void UnregisterTTFImage(void) 414 { 415 (void) UnregisterMagickInfo("TTF"); 416 (void) UnregisterMagickInfo("TTC"); 417 (void) UnregisterMagickInfo("OTF"); 418 (void) UnregisterMagickInfo("PFA"); 419 (void) UnregisterMagickInfo("PFB"); 420 (void) UnregisterMagickInfo("PFA"); 421 (void) UnregisterMagickInfo("DFONT"); 422 } 423
