granicus.if.org Git - imagemagick/blob - coders/vid.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            V   V  IIIII  DDDD                               %
   7 %                            V   V    I    D   D                              %
   8 %                            V   V    I    D   D                              %
   9 %                             V V     I    D   D                              %
  10 %                              V    IIIII  DDDD                               %
  11 %                                                                             %
  12 %                                                                             %
  13 %             Return a Visual Image Directory for matching images.            %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2010 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 \f
  39 /*
  40   Include declarations.
  41 */
  42 #include "magick/studio.h"
  43 #include "magick/property.h"
  44 #include "magick/blob.h"
  45 #include "magick/blob-private.h"
  46 #include "magick/constitute.h"
  47 #include "magick/exception.h"
  48 #include "magick/exception-private.h"
  49 #include "magick/geometry.h"
  50 #include "magick/image.h"
  51 #include "magick/image-private.h"
  52 #include "magick/list.h"
  53 #include "magick/log.h"
  54 #include "magick/magick.h"
  55 #include "magick/memory_.h"
  56 #include "magick/monitor.h"
  57 #include "magick/monitor-private.h"
  58 #include "magick/montage.h"
  59 #include "magick/quantum-private.h"
  60 #include "magick/resize.h"
  61 #include "magick/static.h"
  62 #include "magick/string_.h"
  63 #include "magick/module.h"
  64 #include "magick/utility.h"
  65 \f
  66 /*
  67   Forward declarations.
  68 */
  69 static MagickBooleanType
  70   WriteVIDImage(const ImageInfo *,Image *);
  71 \f
  72 /*
  73 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  74 %                                                                             %
  75 %                                                                             %
  76 %                                                                             %
  77 %   R e a d V I D I m a g e                                                   %
  78 %                                                                             %
  79 %                                                                             %
  80 %                                                                             %
  81 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  82 %
  83 %  ReadVIDImage reads one of more images and creates a Visual Image
  84 %  Directory file.  It allocates the memory necessary for the new Image
  85 %  structure and returns a pointer to the new image.
  86 %
  87 %  The format of the ReadVIDImage method is:
  88 %
  89 %      Image *ReadVIDImage(const ImageInfo *image_info,ExceptionInfo *exception)
  90 %
  91 %  A description of each parameter follows:
  92 %
  93 %    o image_info: the image info.
  94 %
  95 %    o exception: return any errors or warnings in this structure.
  96 %
  97 */
  98 static Image *ReadVIDImage(const ImageInfo *image_info,ExceptionInfo *exception)
  99 {
 100 #define ClientName  "montage"
 101
 102   char
 103     **filelist,
 104     *label;
 105
 106   Image
 107     *image,
 108     *images,
 109     *montage_image,
 110     *next_image,
 111     *thumbnail_image;
 112
 113   ImageInfo
 114     *read_info;
 115
 116   int
 117     number_files;
 118
 119   MagickBooleanType
 120     status;
 121
 122   MontageInfo
 123     *montage_info;
 124
 125   RectangleInfo
 126     geometry;
 127
 128   register ssize_t
 129     i;
 130
 131   /*
 132     Expand the filename.
 133   */
 134   assert(image_info != (const ImageInfo *) NULL);
 135   assert(image_info->signature == MagickSignature);
 136   if (image_info->debug != MagickFalse)
 137     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
 138       image_info->filename);
 139   assert(exception != (ExceptionInfo *) NULL);
 140   assert(exception->signature == MagickSignature);
 141   image=AcquireImage(image_info);
 142   filelist=(char **) AcquireAlignedMemory(1,sizeof(*filelist));
 143   if (filelist == (char **) NULL)
 144     ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 145   filelist[0]=ConstantString(image_info->filename);
 146   number_files=1;
 147   status=ExpandFilenames(&number_files,&filelist);
 148   if ((status == MagickFalse) || (number_files == 0))
 149     ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 150   image=DestroyImage(image);
 151   /*
 152     Read each image and convert them to a tile.
 153   */
 154   images=NewImageList();
 155   read_info=CloneImageInfo(image_info);
 156   SetImageInfoBlob(read_info,(void *) NULL,0);
 157   (void) SetImageInfoProgressMonitor(read_info,(MagickProgressMonitor) NULL,
 158     (void *) NULL);
 159   if (read_info->size == (char *) NULL)
 160     (void) CloneString(&read_info->size,DefaultTileGeometry);
 161   for (i=0; i < (ssize_t) number_files; i++)
 162   {
 163     if (image_info->debug != MagickFalse)
 164       (void) LogMagickEvent(CoderEvent,GetMagickModule(),"name: %s",
 165         filelist[i]);
 166     (void) CopyMagickString(read_info->filename,filelist[i],MaxTextExtent);
 167     filelist[i]=DestroyString(filelist[i]);
 168     *read_info->magick='\0';
 169     next_image=ReadImage(read_info,exception);
 170     CatchException(exception);
 171     if (next_image == (Image *) NULL)
 172       break;
 173     label=InterpretImageProperties(image_info,next_image,DefaultTileLabel);
 174     (void) SetImageProperty(next_image,"label",label);
 175     label=DestroyString(label);
 176     if (image_info->debug != MagickFalse)
 177       (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 178         "geometry: %.20gx%.20g",(double) next_image->columns,(double)
 179         next_image->rows);
 180     SetGeometry(next_image,&geometry);
 181     (void) ParseMetaGeometry(read_info->size,&geometry.x,&geometry.y,
 182       &geometry.width,&geometry.height);
 183     thumbnail_image=ThumbnailImage(next_image,geometry.width,geometry.height,
 184       exception);
 185     if (thumbnail_image != (Image *) NULL)
 186       {
 187         next_image=DestroyImage(next_image);
 188         next_image=thumbnail_image;
 189       }
 190     if (image_info->debug != MagickFalse)
 191       (void) LogMagickEvent(CoderEvent,GetMagickModule(),
 192         "thumbnail geometry: %.20gx%.20g",(double) next_image->columns,(double)
 193         next_image->rows);
 194     AppendImageToList(&images,next_image);
 195     status=SetImageProgress(images,LoadImagesTag,i,number_files);
 196     if (status == MagickFalse)
 197       break;
 198   }
 199   read_info=DestroyImageInfo(read_info);
 200   filelist=(char **) RelinquishMagickMemory(filelist);
 201   if (images == (Image *) NULL)
 202     ThrowReaderException(CorruptImageError,
 203       "ImageFileDoesNotContainAnyImageData");
 204   /*
 205     Create the visual image directory.
 206   */
 207   montage_info=CloneMontageInfo(image_info,(MontageInfo *) NULL);
 208   if (image_info->debug != MagickFalse)
 209     (void) LogMagickEvent(CoderEvent,GetMagickModule(),"creating montage");
 210   montage_image=MontageImageList(image_info,montage_info,
 211     GetFirstImageInList(images),exception);
 212   montage_info=DestroyMontageInfo(montage_info);
 213   images=DestroyImageList(images);
 214   return(montage_image);
 215 }
 216 \f
 217 /*
 218 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 219 %                                                                             %
 220 %                                                                             %
 221 %                                                                             %
 222 %   R e g i s t e r V I D I m a g e                                           %
 223 %                                                                             %
 224 %                                                                             %
 225 %                                                                             %
 226 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 227 %
 228 %  RegisterVIDImage() adds attributes for the VID image format to
 229 %  the list of supported formats.  The attributes include the image format
 230 %  tag, a method to read and/or write the format, whether the format
 231 %  supports the saving of more than one frame to the same file or blob,
 232 %  whether the format supports native in-memory I/O, and a brief
 233 %  description of the format.
 234 %
 235 %  The format of the RegisterVIDImage method is:
 236 %
 237 %      size_t RegisterVIDImage(void)
 238 %
 239 */
 240 ModuleExport size_t RegisterVIDImage(void)
 241 {
 242   MagickInfo
 243     *entry;
 244
 245   entry=SetMagickInfo("VID");
 246   entry->decoder=(DecodeImageHandler *) ReadVIDImage;
 247   entry->encoder=(EncodeImageHandler *) WriteVIDImage;
 248   entry->format_type=ImplicitFormatType;
 249   entry->description=ConstantString("Visual Image Directory");
 250   entry->module=ConstantString("VID");
 251   (void) RegisterMagickInfo(entry);
 252   return(MagickImageCoderSignature);
 253 }
 254 \f
 255 /*
 256 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 257 %                                                                             %
 258 %                                                                             %
 259 %                                                                             %
 260 %   U n r e g i s t e r V I D I m a g e                                       %
 261 %                                                                             %
 262 %                                                                             %
 263 %                                                                             %
 264 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 265 %
 266 %  UnregisterVIDImage() removes format registrations made by the
 267 %  VID module from the list of supported formats.
 268 %
 269 %  The format of the UnregisterVIDImage method is:
 270 %
 271 %      UnregisterVIDImage(void)
 272 %
 273 */
 274 ModuleExport void UnregisterVIDImage(void)
 275 {
 276   (void) UnregisterMagickInfo("VID");
 277 }
 278 \f
 279 /*
 280 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 281 %                                                                             %
 282 %                                                                             %
 283 %                                                                             %
 284 %   W r i t e V I D I m a g e                                                 %
 285 %                                                                             %
 286 %                                                                             %
 287 %                                                                             %
 288 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 289 %
 290 %  WriteVIDImage() writes an image to a file in VID X image format.
 291 %
 292 %  The format of the WriteVIDImage method is:
 293 %
 294 %      MagickBooleanType WriteVIDImage(const ImageInfo *image_info,Image *image)
 295 %
 296 %  A description of each parameter follows.
 297 %
 298 %    o image_info: the image info.
 299 %
 300 %    o image:  The image.
 301 %
 302 */
 303 static MagickBooleanType WriteVIDImage(const ImageInfo *image_info,Image *image)
 304 {
 305   Image
 306     *montage_image;
 307
 308   ImageInfo
 309     *write_info;
 310
 311   MagickBooleanType
 312     status;
 313
 314   MontageInfo
 315     *montage_info;
 316
 317   register Image
 318     *p;
 319
 320   /*
 321     Create the visual image directory.
 322   */
 323   for (p=image; p != (Image *) NULL; p=GetNextImageInList(p))
 324     (void) SetImageProperty(p,"label",DefaultTileLabel);
 325   montage_info=CloneMontageInfo(image_info,(MontageInfo *) NULL);
 326   montage_image=MontageImageList(image_info,montage_info,image,
 327     &image->exception);
 328   montage_info=DestroyMontageInfo(montage_info);
 329   if (montage_image == (Image *) NULL)
 330     ThrowWriterException(CorruptImageError,image->exception.reason);
 331   (void) CopyMagickString(montage_image->filename,image_info->filename,
 332     MaxTextExtent);
 333   write_info=CloneImageInfo(image_info);
 334   (void) SetImageInfo(write_info,1,&image->exception);
 335   if (LocaleCompare(write_info->magick,"VID") == 0)
 336     (void) FormatMagickString(montage_image->filename,MaxTextExtent,
 337       "miff:%s",write_info->filename);
 338   status=WriteImage(write_info,montage_image);
 339   montage_image=DestroyImage(montage_image);
 340   write_info=DestroyImageInfo(write_info);
 341   return(status);
 342 }