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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                          CCCC  L      IIIII  PPPP                           %
   7 %                         C      L        I    P   P                          %
   8 %                         C      L        I    PPPP                           %
   9 %                         C      L        I    P                              %
  10 %                          CCCC  LLLLL  IIIII  P                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                        Write Clip Mask To MIFF File.                        %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2011 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 "MagickCore/studio.h"
  43 #include "MagickCore/blob.h"
  44 #include "MagickCore/blob-private.h"
  45 #include "MagickCore/constitute.h"
  46 #include "MagickCore/exception.h"
  47 #include "MagickCore/exception-private.h"
  48 #include "MagickCore/magick.h"
  49 #include "MagickCore/memory_.h"
  50 #include "MagickCore/monitor.h"
  51 #include "MagickCore/monitor-private.h"
  52 #include "MagickCore/quantum-private.h"
  53 #include "MagickCore/static.h"
  54 #include "MagickCore/string_.h"
  55 #include "MagickCore/module.h"
  56 \f
  57 /*
  58   Forward declarations.
  59 */
  60 static MagickBooleanType
  61   WriteCLIPImage(const ImageInfo *,Image *);
  62 \f
  63 /*
  64 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  65 %                                                                             %
  66 %                                                                             %
  67 %                                                                             %
  68 %   R e g i s t e r C L I P I m a g e                                         %
  69 %                                                                             %
  70 %                                                                             %
  71 %                                                                             %
  72 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  73 %
  74 %  RegisterCLIPImage() adds attributes for the CLIP image format to
  75 %  the list of supported formats.  The attributes include the image format
  76 %  tag, a method to read and/or write the format, whether the format
  77 %  supports the saving of more than one frame to the same file or blob,
  78 %  whether the format supports native in-memory I/O, and a brief
  79 %  description of the format.
  80 %
  81 %  The format of the RegisterCLIPImage method is:
  82 %
  83 %      size_t RegisterCLIPImage(void)
  84 %
  85 */
  86 ModuleExport size_t RegisterCLIPImage(void)
  87 {
  88   MagickInfo
  89     *entry;
  90
  91   entry=SetMagickInfo("CLIP");
  92   entry->encoder=(EncodeImageHandler *) WriteCLIPImage;
  93   entry->description=ConstantString("Image Clip Mask");
  94   entry->module=ConstantString("CLIP");
  95   (void) RegisterMagickInfo(entry);
  96   return(MagickImageCoderSignature);
  97 }
  98 \f
  99 /*
 100 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 101 %                                                                             %
 102 %                                                                             %
 103 %                                                                             %
 104 %   U n r e g i s t e r C L I P I m a g e                                     %
 105 %                                                                             %
 106 %                                                                             %
 107 %                                                                             %
 108 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 109 %
 110 %  UnregisterCLIPImage() removes format registrations made by the
 111 %  CLIP module from the list of supported formats.
 112 %
 113 %  The format of the UnregisterCLIPImage method is:
 114 %
 115 %      UnregisterCLIPImage(void)
 116 %
 117 */
 118 ModuleExport void UnregisterCLIPImage(void)
 119 {
 120   (void) UnregisterMagickInfo("CLIP");
 121 }
 122 \f
 123 /*
 124 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 125 %                                                                             %
 126 %                                                                             %
 127 %                                                                             %
 128 %   W r i t e C L I P I m a g e                                               %
 129 %                                                                             %
 130 %                                                                             %
 131 %                                                                             %
 132 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 133 %
 134 %  WriteCLIPImage() writes an image of clip bytes to a file.  It consists of
 135 %  data from the clip mask of the image.
 136 %
 137 %  The format of the WriteCLIPImage method is:
 138 %
 139 %      MagickBooleanType WriteCLIPImage(const ImageInfo *image_info,
 140 %        Image *image)
 141 %
 142 %  A description of each parameter follows.
 143 %
 144 %    o image_info: the image info.
 145 %
 146 %    o image:  The image.
 147 %
 148 */
 149 static MagickBooleanType WriteCLIPImage(const ImageInfo *image_info,
 150   Image *image)
 151 {
 152   Image
 153     *clip_image;
 154
 155   ImageInfo
 156     *write_info;
 157
 158   MagickBooleanType
 159     status;
 160
 161   if (image->clip_mask == (Image *) NULL)
 162     (void) ClipImage(image);
 163   if (image->clip_mask == (Image *) NULL)
 164     ThrowWriterException(CoderError,"ImageDoesNotHaveAClipMask");
 165   clip_image=CloneImage(image->clip_mask,0,0,MagickTrue,&image->exception);
 166   if (clip_image == (Image *) NULL)
 167     return(MagickFalse);
 168   (void) SetImageType(clip_image,TrueColorType);
 169   (void) CopyMagickString(clip_image->filename,image->filename,MaxTextExtent);
 170   write_info=CloneImageInfo(image_info);
 171   (void) SetImageInfo(write_info,1,&image->exception);
 172   if (LocaleCompare(write_info->magick,"CLIP") == 0)
 173     (void) FormatLocaleString(clip_image->filename,MaxTextExtent,"miff:%s",
 174       write_info->filename);
 175   status=WriteImage(write_info,clip_image);
 176   clip_image=DestroyImage(clip_image);
 177   write_info=DestroyImageInfo(write_info);
 178   return(status);
 179 }