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

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %                            U   U  IIIII  L                                  %
   7 %                            U   U    I    L                                  %
   8 %                            U   U    I    L                                  %
   9 %                            U   U    I    L                                  %
  10 %                             UUU   IIIII  LLLLL                              %
  11 %                                                                             %
  12 %                                                                             %
  13 %                          Write X-Motif UIL Table.                           %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                   Cristy                                    %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2014 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/attribute.h"
  44 #include "MagickCore/blob.h"
  45 #include "MagickCore/blob-private.h"
  46 #include "MagickCore/cache.h"
  47 #include "MagickCore/color.h"
  48 #include "MagickCore/color-private.h"
  49 #include "MagickCore/colorspace.h"
  50 #include "MagickCore/colorspace-private.h"
  51 #include "MagickCore/exception.h"
  52 #include "MagickCore/exception-private.h"
  53 #include "MagickCore/image-private.h"
  54 #include "MagickCore/magick.h"
  55 #include "MagickCore/memory_.h"
  56 #include "MagickCore/monitor.h"
  57 #include "MagickCore/monitor-private.h"
  58 #include "MagickCore/pixel-accessor.h"
  59 #include "MagickCore/quantum-private.h"
  60 #include "MagickCore/static.h"
  61 #include "MagickCore/string_.h"
  62 #include "MagickCore/module.h"
  63 #include "MagickCore/utility.h"
  64 \f
  65 /*
  66   Forward declarations.
  67 */
  68 static MagickBooleanType
  69   WriteUILImage(const ImageInfo *,Image *,ExceptionInfo *);
  70 \f
  71 /*
  72 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  73 %                                                                             %
  74 %                                                                             %
  75 %                                                                             %
  76 %   R e g i s t e r U I L I m a g e                                           %
  77 %                                                                             %
  78 %                                                                             %
  79 %                                                                             %
  80 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  81 %
  82 %  RegisterUILImage() adds attributes for the UIL image format to
  83 %  the list of supported formats.  The attributes include the image format
  84 %  tag, a method to read and/or write the format, whether the format
  85 %  supports the saving of more than one frame to the same file or blob,
  86 %  whether the format supports native in-memory I/O, and a brief
  87 %  description of the format.
  88 %
  89 %  The format of the RegisterUILImage method is:
  90 %
  91 %      size_t RegisterUILImage(void)
  92 %
  93 */
  94 ModuleExport size_t RegisterUILImage(void)
  95 {
  96   MagickInfo
  97     *entry;
  98
  99   entry=SetMagickInfo("UIL");
 100   entry->encoder=(EncodeImageHandler *) WriteUILImage;
 101   entry->adjoin=MagickFalse;
 102   entry->description=ConstantString("X-Motif UIL table");
 103   entry->module=ConstantString("UIL");
 104   (void) RegisterMagickInfo(entry);
 105   return(MagickImageCoderSignature);
 106 }
 107 \f
 108 /*
 109 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 110 %                                                                             %
 111 %                                                                             %
 112 %                                                                             %
 113 %   U n r e g i s t e r U I L I m a g e                                       %
 114 %                                                                             %
 115 %                                                                             %
 116 %                                                                             %
 117 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 118 %
 119 %  UnregisterUILImage() removes format registrations made by the
 120 %  UIL module from the list of supported formats.
 121 %
 122 %  The format of the UnregisterUILImage method is:
 123 %
 124 %      UnregisterUILImage(void)
 125 %
 126 */
 127 ModuleExport void UnregisterUILImage(void)
 128 {
 129   (void) UnregisterMagickInfo("UIL");
 130 }
 131 \f
 132 /*
 133 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 134 %                                                                             %
 135 %                                                                             %
 136 %                                                                             %
 137 %   W r i t e U I L I m a g e                                                 %
 138 %                                                                             %
 139 %                                                                             %
 140 %                                                                             %
 141 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 142 %
 143 %  Procedure WriteUILImage() writes an image to a file in the X-Motif UIL table
 144 %  format.
 145 %
 146 %  The format of the WriteUILImage method is:
 147 %
 148 %      MagickBooleanType WriteUILImage(const ImageInfo *image_info,
 149 %        Image *image,ExceptionInfo *exception)
 150 %
 151 %  A description of each parameter follows.
 152 %
 153 %    o image_info: the image info.
 154 %
 155 %    o image:  The image.
 156 %
 157 %    o exception: return any errors or warnings in this structure.
 158 %
 159 */
 160 static MagickBooleanType WriteUILImage(const ImageInfo *image_info,Image *image,
 161   ExceptionInfo *exception)
 162 {
 163 #define MaxCixels  92
 164
 165   char
 166     basename[MaxTextExtent],
 167     buffer[MaxTextExtent],
 168     name[MaxTextExtent],
 169     *symbol;
 170
 171   int
 172     j;
 173
 174   MagickBooleanType
 175     status,
 176     transparent;
 177
 178   MagickSizeType
 179     number_pixels;
 180
 181   PixelInfo
 182     pixel;
 183
 184   register const Quantum
 185     *p;
 186
 187   register ssize_t
 188     i,
 189     x;
 190
 191   size_t
 192     characters_per_pixel,
 193     colors;
 194
 195   ssize_t
 196     k,
 197     y;
 198
 199   static const char
 200     Cixel[MaxCixels+1] = " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
 201                          "lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
 202
 203   /*
 204     Open output image file.
 205   */
 206   assert(image_info != (const ImageInfo *) NULL);
 207   assert(image_info->signature == MagickSignature);
 208   assert(image != (Image *) NULL);
 209   assert(image->signature == MagickSignature);
 210   if (image->debug != MagickFalse)
 211     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 212   assert(exception != (ExceptionInfo *) NULL);
 213   assert(exception->signature == MagickSignature);
 214   status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
 215   if (status == MagickFalse)
 216     return(status);
 217   (void) TransformImageColorspace(image,sRGBColorspace,exception);
 218   transparent=MagickFalse;
 219   i=0;
 220   p=(const Quantum *) NULL;
 221   if (image->storage_class == PseudoClass)
 222     colors=image->colors;
 223   else
 224     {
 225       unsigned char
 226         *matte_image;
 227
 228       /*
 229         Convert DirectClass to PseudoClass image.
 230       */
 231       matte_image=(unsigned char *) NULL;
 232       if (image->alpha_trait == BlendPixelTrait)
 233         {
 234           /*
 235             Map all the transparent pixels.
 236           */
 237           number_pixels=(MagickSizeType) image->columns*image->rows;
 238           if (number_pixels != ((MagickSizeType) (size_t) number_pixels))
 239             ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 240           matte_image=(unsigned char *) AcquireQuantumMemory(image->columns,
 241             image->rows*sizeof(*matte_image));
 242           if (matte_image == (unsigned char *) NULL)
 243             ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
 244           for (y=0; y < (ssize_t) image->rows; y++)
 245           {
 246             p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 247             if (p == (const Quantum *) NULL)
 248               break;
 249             for (x=0; x < (ssize_t) image->columns; x++)
 250             {
 251               matte_image[i]=(unsigned char) (GetPixelAlpha(image,p) ==
 252                 (Quantum) TransparentAlpha ? 1 : 0);
 253               if (matte_image[i] != 0)
 254                 transparent=MagickTrue;
 255               i++;
 256               p+=GetPixelChannels(image);
 257             }
 258           }
 259         }
 260       (void) SetImageType(image,PaletteType,exception);
 261       colors=image->colors;
 262       if (transparent != MagickFalse)
 263         {
 264           register Quantum
 265             *q;
 266
 267           colors++;
 268           for (y=0; y < (ssize_t) image->rows; y++)
 269           {
 270             q=GetAuthenticPixels(image,0,y,image->columns,1,exception);
 271             if (q == (Quantum *) NULL)
 272               break;
 273             for (x=0; x < (ssize_t) image->columns; x++)
 274             {
 275               if (matte_image[i] != 0)
 276                 SetPixelIndex(image,image->colors,q);
 277               q+=GetPixelChannels(image);
 278             }
 279           }
 280         }
 281       if (matte_image != (unsigned char *) NULL)
 282         matte_image=(unsigned char *) RelinquishMagickMemory(matte_image);
 283     }
 284   /*
 285     Compute the character per pixel.
 286   */
 287   characters_per_pixel=1;
 288   for (k=MaxCixels; (ssize_t) colors > k; k*=MaxCixels)
 289     characters_per_pixel++;
 290   /*
 291     UIL header.
 292   */
 293   symbol=AcquireString("");
 294   (void) WriteBlobString(image,"/* UIL */\n");
 295   GetPathComponent(image->filename,BasePath,basename);
 296   (void) FormatLocaleString(buffer,MaxTextExtent,
 297     "value\n  %s_ct : color_table(\n",basename);
 298   (void) WriteBlobString(image,buffer);
 299   GetPixelInfo(image,&pixel);
 300   for (i=0; i < (ssize_t) colors; i++)
 301   {
 302     /*
 303       Define UIL color.
 304     */
 305     pixel=image->colormap[i];
 306     pixel.colorspace=sRGBColorspace;
 307     pixel.depth=8;
 308     pixel.alpha=(double) OpaqueAlpha;
 309     GetColorTuple(&pixel,MagickTrue,name);
 310     if (transparent != MagickFalse)
 311       if (i == (ssize_t) (colors-1))
 312         (void) CopyMagickString(name,"None",MaxTextExtent);
 313     /*
 314       Write UIL color.
 315     */
 316     k=i % MaxCixels;
 317     symbol[0]=Cixel[k];
 318     for (j=1; j < (int) characters_per_pixel; j++)
 319     {
 320       k=((i-k)/MaxCixels) % MaxCixels;
 321       symbol[j]=Cixel[k];
 322     }
 323     symbol[j]='\0';
 324     (void) SubstituteString(&symbol,"'","''");
 325     if (LocaleCompare(name,"None") == 0)
 326       (void) FormatLocaleString(buffer,MaxTextExtent,
 327         "    background color = '%s'",symbol);
 328     else
 329       (void) FormatLocaleString(buffer,MaxTextExtent,
 330         "    color('%s',%s) = '%s'",name,
 331         GetPixelInfoIntensity(image->colormap+i) <
 332         (QuantumRange/2) ? "background" : "foreground",symbol);
 333     (void) WriteBlobString(image,buffer);
 334     (void) FormatLocaleString(buffer,MaxTextExtent,"%s",
 335       (i == (ssize_t) (colors-1) ? ");\n" : ",\n"));
 336     (void) WriteBlobString(image,buffer);
 337   }
 338   /*
 339     Define UIL pixels.
 340   */
 341   GetPathComponent(image->filename,BasePath,basename);
 342   (void) FormatLocaleString(buffer,MaxTextExtent,
 343     "  %s_icon : icon(color_table = %s_ct,\n",basename,basename);
 344   (void) WriteBlobString(image,buffer);
 345   for (y=0; y < (ssize_t) image->rows; y++)
 346   {
 347     p=GetVirtualPixels(image,0,y,image->columns,1,exception);
 348     if (p == (const Quantum *) NULL)
 349       break;
 350     (void) WriteBlobString(image,"    \"");
 351     for (x=0; x < (ssize_t) image->columns; x++)
 352     {
 353       k=((ssize_t) GetPixelIndex(image,p) % MaxCixels);
 354       symbol[0]=Cixel[k];
 355       for (j=1; j < (int) characters_per_pixel; j++)
 356       {
 357         k=(((int) GetPixelIndex(image,p)-k)/MaxCixels) %
 358           MaxCixels;
 359         symbol[j]=Cixel[k];
 360       }
 361       symbol[j]='\0';
 362       (void) CopyMagickString(buffer,symbol,MaxTextExtent);
 363       (void) WriteBlobString(image,buffer);
 364       p+=GetPixelChannels(image);
 365     }
 366     (void) FormatLocaleString(buffer,MaxTextExtent,"\"%s\n",
 367       (y == (ssize_t) (image->rows-1) ? ");" : ","));
 368     (void) WriteBlobString(image,buffer);
 369     status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
 370       image->rows);
 371     if (status == MagickFalse)
 372       break;
 373   }
 374   symbol=DestroyString(symbol);
 375   (void) CloseBlob(image);
 376   return(MagickTrue);
 377 }