src/gdk_imlib/save.c

   1 #define _GNU_SOURCE
   2 #include <config.h>
   3
   4 #include "gdk_imlib.h"
   5 #include "gdk_imlib_private.h"
   6
   7 gint
   8 gdk_imlib_save_image(GdkImlibImage * im, char *file, GdkImlibSaveInfo * info)
   9 {
  10    char               *ext;
  11    char                cmd[10240];
  12    FILE               *f;
  13    GdkImlibSaveInfo    defaults;
  14
  15    if (!im || !file)
  16       return 0;
  17
  18    defaults.quality = 208;
  19    defaults.scaling = 1024;
  20    defaults.xjustification = 512;
  21    defaults.yjustification = 512;
  22    defaults.page_size = PAGE_SIZE_LETTER;
  23    defaults.color = 1;
  24
  25    if (!info)
  26       info = &defaults;
  27    ext = g_GetExtension(file);
  28
  29    if ((!strcasecmp(ext, "ppm")) || (!strcasecmp(ext, "pnm")))
  30      {
  31         f = fopen(file, "wb");
  32         if (f)
  33           {
  34              if (!fprintf(f, "P6\n# Created by Imlib\n%i %i\n255\n", im->rgb_width, im->rgb_height))
  35                {
  36                   fclose(f);
  37                   return 0;
  38                }
  39              if (!fwrite(im->rgb_data, 1, (im->rgb_width * im->rgb_height * 3), f))
  40                {
  41                   fclose(f);
  42                   return 0;
  43                }
  44              fclose(f);
  45              return 1;
  46           }
  47      }
  48    else if (!strcasecmp(ext, "pgm"))
  49      {
  50         int                 x, y;
  51         unsigned char      *ptr, val;
  52         int                 v;
  53
  54         f = fopen(file, "wb");
  55         if (f)
  56           {
  57              if (!fprintf(f, "P5\n# Created by Imlib\n%i %i\n255\n", im->rgb_width, im->rgb_height))
  58                {
  59                   fclose(f);
  60                   return 0;
  61                }
  62              ptr = im->rgb_data;
  63              for (y = 0; y < im->rgb_height; y++)
  64                {
  65                   for (x = 0; x < im->rgb_width; x++)
  66                     {
  67                        v = (int)(*ptr++);
  68                        v += (int)(*ptr++);
  69                        v += (int)(*ptr++);
  70                        val = (unsigned char)(v / 3);
  71                        if (!fwrite(&val, 1, 1, f))
  72                          {
  73                             fclose(f);
  74                             return 0;
  75                          }
  76                     }
  77                }
  78              fclose(f);
  79              return 1;
  80           }
  81      }
  82    else if (!strcasecmp(ext, "ps"))
  83      {
  84         int                 bx, by, bxx, byy;
  85         int                 w, h;
  86         int                 sx, sy;
  87         int                 tx = 35, ty = 35;
  88         int                 x, y;
  89         unsigned char      *ptr;
  90         int                 v;
  91
  92         f = fopen(file, "wb");
  93
  94         if (f == NULL)
  95            return 0;
  96
  97         w = im->rgb_width;
  98         h = im->rgb_height;
  99
 100         switch (info->page_size)
 101           {
 102           case PAGE_SIZE_EXECUTIVE:
 103              sx = 540;
 104              sy = 720;
 105              break;
 106           case PAGE_SIZE_LETTER:
 107              sx = 612;
 108              sy = 792;
 109              break;
 110           case PAGE_SIZE_LEGAL:
 111              sx = 612;
 112              sy = 1008;
 113              break;
 114           case PAGE_SIZE_A4:
 115              sx = 595;
 116              sy = 842;
 117              break;
 118           case PAGE_SIZE_A3:
 119              sx = 842;
 120              sy = 1190;
 121              break;
 122           case PAGE_SIZE_A5:
 123              sx = 420;
 124              sy = 595;
 125              break;
 126           case PAGE_SIZE_FOLIO:
 127              sx = 612;
 128              sy = 936;
 129              break;
 130           }
 131         bxx = ((sx - (tx * 2)) * info->scaling) >> 10;
 132         byy = ((h * bxx / w) * info->scaling) >> 10;
 133         if ((((sy - (ty * 2)) * info->scaling) >> 10) < byy)
 134           {
 135              byy = ((sy - (ty * 2)) * info->scaling) >> 10;
 136              bxx = ((w * byy / h) * info->scaling) >> 10;
 137           }
 138         bx = tx + ((((sx - (tx * 2)) - bxx) * info->xjustification) >> 10);
 139         by = ty + ((((sy - (ty * 2)) - byy) * info->yjustification) >> 10);
 140         if (f)
 141           {
 142              fprintf(f, "%%!PS-Adobe-2.0 EPSF-2.0\n");
 143              fprintf(f, "%%%%Title: %s\n", file);
 144              fprintf(f, "%%%%Creator: Imlib by The Rasterman\n");
 145              fprintf(f, "%%%%BoundingBox: %i %i %i %i\n", bx, by, bxx, byy);
 146              fprintf(f, "%%%%Pages: 1\n");
 147              fprintf(f, "%%%%DocumentFonts:\n");
 148              fprintf(f, "%%%%EndComments\n");
 149              fprintf(f, "%%%%EndProlog\n");
 150              fprintf(f, "%%%%Page: 1 1\n");
 151              fprintf(f, "/origstate save def\n");
 152              fprintf(f, "20 dict begin\n");
 153              if (info->color)
 154                {
 155                   fprintf(f, "/pix %i string def\n", w * 3);
 156                   fprintf(f, "/grays %i string def\n", w);
 157                   fprintf(f, "/npixls 0 def\n");
 158                   fprintf(f, "/rgbindx 0 def\n");
 159                   fprintf(f, "%i %i translate\n", bx, by);
 160                   fprintf(f, "%i %i scale\n", bxx, byy);
 161                   fprintf(f,
 162                           "/colorimage where\n"
 163                           "{ pop }\n"
 164                           "{\n"
 165                           "/colortogray {\n"
 166                           "/rgbdata exch store\n"
 167                           "rgbdata length 3 idiv\n"
 168                           "/npixls exch store\n"
 169                           "/rgbindx 0 store\n"
 170                           "0 1 npixls 1 sub {\n"
 171                           "grays exch\n"
 172                           "rgbdata rgbindx       get 20 mul\n"
 173                           "rgbdata rgbindx 1 add get 32 mul\n"
 174                           "rgbdata rgbindx 2 add get 12 mul\n"
 175                           "add add 64 idiv\n"
 176                           "put\n"
 177                           "/rgbindx rgbindx 3 add store\n"
 178                           "} for\n"
 179                           "grays 0 npixls getinterval\n"
 180                           "} bind def\n"
 181                           "/mergeprocs {\n"
 182                           "dup length\n"
 183                           "3 -1 roll\n"
 184                           "dup\n"
 185                           "length\n"
 186                           "dup\n"
 187                           "5 1 roll\n"
 188                           "3 -1 roll\n"
 189                           "add\n"
 190                           "array cvx\n"
 191                           "dup\n"
 192                           "3 -1 roll\n"
 193                           "0 exch\n"
 194                           "putinterval\n"
 195                           "dup\n"
 196                           "4 2 roll\n"
 197                           "putinterval\n"
 198                           "} bind def\n"
 199                           "/colorimage {\n"
 200                           "pop pop\n"
 201                           "{colortogray} mergeprocs\n"
 202                           "image\n"
 203                           "} bind def\n"
 204                           "} ifelse\n");
 205                   fprintf(f, "%i %i 8\n", w, h);
 206                   fprintf(f, "[%i 0 0 -%i 0 %i]\n", w, h, h);
 207                   fprintf(f, "{currentfile pix readhexstring pop}\n");
 208                   fprintf(f, "false 3 colorimage\n");
 209                   fprintf(f, "\n");
 210                   ptr = im->rgb_data;
 211                   for (y = 0; y < h; y++)
 212                     {
 213                        for (x = 0; x < w; x++)
 214                          {
 215                             v = (int)(*ptr++);
 216                             if (v < 0x10)
 217                                fprintf(f, "0%x", v);
 218                             else
 219                                fprintf(f, "%x", v);
 220                             v = (int)(*ptr++);
 221                             if (v < 0x10)
 222                                fprintf(f, "0%x", v);
 223                             else
 224                                fprintf(f, "%x", v);
 225                             v = (int)(*ptr++);
 226                             if (v < 0x10)
 227                                fprintf(f, "0%x", v);
 228                             else
 229                                fprintf(f, "%x", v);
 230                          }
 231                        fprintf(f, "\n");
 232                     }
 233                }
 234              else
 235                {
 236                   fprintf(f, "/pix %i string def\n", w);
 237                   fprintf(f, "/grays %i string def\n", w);
 238                   fprintf(f, "/npixls 0 def\n");
 239                   fprintf(f, "/rgbindx 0 def\n");
 240                   fprintf(f, "%i %i translate\n", bx, by);
 241                   fprintf(f, "%i %i scale\n", bxx, byy);
 242                   fprintf(f, "%i %i 8\n", w, h);
 243                   fprintf(f, "[%i 0 0 -%i 0 %i]\n", w, h, h);
 244                   fprintf(f, "{currentfile pix readhexstring pop}\n");
 245                   fprintf(f, "image\n");
 246                   fprintf(f, "\n");
 247                   ptr = im->rgb_data;
 248                   for (y = 0; y < h; y++)
 249                     {
 250                        for (x = 0; x < w; x++)
 251                          {
 252                             v = (int)(*ptr++);
 253                             v += (int)(*ptr++);
 254                             v += (int)(*ptr++);
 255                             v /= 3;
 256                             if (v < 0x10)
 257                                fprintf(f, "0%x", v);
 258                             else
 259                                fprintf(f, "%x", v);
 260                          }
 261                        fprintf(f, "\n");
 262                     }
 263                }
 264              fprintf(f, "\n");
 265              fprintf(f, "showpage\n");
 266              fprintf(f, "end\n");
 267              fprintf(f, "origstate restore\n");
 268              fprintf(f, "%%%%Trailer\n");
 269              fclose(f);
 270              return 1;
 271           }
 272      }
 273    else if ((!strcasecmp(ext, "jpeg")) || (!strcasecmp(ext, "jpg")))
 274      {
 275 #ifdef HAVE_LIBJPEG
 276         struct jpeg_compress_struct cinfo;
 277         struct jpeg_error_mgr jerr;
 278         JSAMPROW            row_pointer[1];
 279         int                 row_stride;
 280         int                 y;
 281
 282         f = fopen(file, "wb");
 283         if (f)
 284           {
 285              cinfo.err = jpeg_std_error(&jerr);
 286              jpeg_create_compress(&cinfo);
 287              jpeg_stdio_dest(&cinfo, f);
 288              cinfo.image_width = im->rgb_width;
 289              cinfo.image_height = im->rgb_height;
 290              cinfo.input_components = 3;
 291              cinfo.in_color_space = JCS_RGB;
 292              jpeg_set_defaults(&cinfo);
 293              jpeg_set_quality(&cinfo, (100 * info->quality) >> 8, TRUE);
 294              jpeg_start_compress(&cinfo, TRUE);
 295              row_stride = cinfo.image_width * 3;
 296              while (cinfo.next_scanline < cinfo.image_height)
 297                {
 298                   row_pointer[0] = im->rgb_data + (cinfo.next_scanline * row_stride);
 299                   jpeg_write_scanlines(&cinfo, row_pointer, 1);
 300                }
 301              jpeg_finish_compress(&cinfo);
 302              fclose(f);
 303              return 1;
 304           }
 305 #endif
 306      }
 307    else if (!strcasecmp(ext, "png"))
 308      {
 309 #ifdef HAVE_LIBPNG
 310         png_structp         png_ptr;
 311         png_infop           info_ptr;
 312         unsigned char      *data, *ptr;
 313         int                 x, y;
 314         png_bytep           row_ptr;
 315         png_color_8         sig_bit;
 316
 317         f = fopen(file, "wb");
 318         if (f)
 319           {
 320              png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
 321                                                NULL, NULL, NULL);
 322              if (!png_ptr)
 323                {
 324                   fclose(f);
 325                   return 0;
 326                }
 327              info_ptr = png_create_info_struct(png_ptr);
 328              if (info_ptr == NULL)
 329                {
 330                   fclose(f);
 331                   png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
 332                   return 0;
 333                }
 334              if (setjmp(png_ptr->jmpbuf))
 335                {
 336                   fclose(f);
 337                   png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
 338                   return 0;
 339                }
 340              png_init_io(png_ptr, f);
 341              png_set_IHDR(png_ptr, info_ptr, im->rgb_width, im->rgb_height, 8,
 342                           PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
 343                           PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
 344              sig_bit.red = 8;
 345              sig_bit.green = 8;
 346              sig_bit.blue = 8;
 347              sig_bit.alpha = 8;
 348              png_set_sBIT(png_ptr, info_ptr, &sig_bit);
 349              png_write_info(png_ptr, info_ptr);
 350              png_set_shift(png_ptr, &sig_bit);
 351              png_set_packing(png_ptr);
 352              data = malloc(im->rgb_width * 4);
 353              if (!data)
 354                {
 355                   fclose(f);
 356                   png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
 357                   return 0;
 358                }
 359              for (y = 0; y < im->rgb_height; y++)
 360                {
 361                   ptr = im->rgb_data + (y * im->rgb_width * 3);
 362                   for (x = 0; x < im->rgb_width; x++)
 363                     {
 364                        data[(x << 2) + 0] = *ptr++;
 365                        data[(x << 2) + 1] = *ptr++;
 366                        data[(x << 2) + 2] = *ptr++;
 367                        if ((data[(x << 2) + 0] == im->shape_color.r) &&
 368                            (data[(x << 2) + 1] == im->shape_color.g) &&
 369                            (data[(x << 2) + 2] == im->shape_color.b))
 370                           data[(x << 2) + 3] = 0;
 371                        else
 372                           data[(x << 2) + 3] = 255;
 373                     }
 374                   row_ptr = data;
 375                   png_write_rows(png_ptr, &row_ptr, 1);
 376                }
 377              free(data);
 378              png_write_end(png_ptr, info_ptr);
 379              png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
 380
 381              fclose(f);
 382              return 1;
 383           }
 384 #endif
 385      }
 386    else if ((!strcasecmp(ext, "tiff")) || (!strcasecmp(ext, "tif")))
 387      {
 388 #ifdef HAVE_LIBTIFF
 389         TIFF               *tif;
 390         unsigned char      *ptr, *data;
 391         int                 x, y;
 392         int                 w;
 393
 394         tif = TIFFOpen(file, "w");
 395         if (tif)
 396           {
 397              TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, im->rgb_width);
 398              TIFFSetField(tif, TIFFTAG_IMAGELENGTH, im->rgb_height);
 399              TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
 400              TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
 401              TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
 402              TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_LZW);
 403              {
 404                 TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
 405                 TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
 406                 w = TIFFScanlineSize(tif);
 407                 TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP,
 408                              TIFFDefaultStripSize(tif, -1));
 409                 for (y = 0; y < im->rgb_height; y++)
 410                   {
 411                      data = im->rgb_data + (y * im->rgb_width * 3);
 412                      TIFFWriteScanline(tif, data, y, 0);
 413                   }
 414              }
 415              TIFFClose(tif);
 416              return 1;
 417           }
 418 #endif
 419      }
 420    if (id->fallback)
 421      {
 422         f = open_helper("%C/convert pnm:- %s", file, "wb");
 423         if (f)
 424           {
 425              if (!fprintf(f, "P6\n# Created by Imlib\n%i %i\n255\n", im->rgb_width, im->rgb_height))
 426                {
 427                   close_helper(f);
 428                   return 0;
 429                }
 430              if (!fwrite(im->rgb_data, 1, (im->rgb_width * im->rgb_height * 3), f))
 431                {
 432                   close_helper(f);
 433                   return 0;
 434                }
 435              if (close_helper(f))
 436                 return 0;
 437              return 1;
 438           }
 439
 440         if (!strcasecmp(ext, "jpeg"))
 441            g_snprintf(cmd, sizeof(cmd), "%%H -quality %i -progressive -outfile %%s", 100 * info->quality / 256);
 442         else if (!strcasecmp(ext, "jpg"))
 443            g_snprintf(cmd, sizeof(cmd), "%%H -quality %i -progressive -outfile %%s", 100 * info->quality / 256);
 444         else if (!strcasecmp(ext, "bmp"))
 445            strcpy(cmd, "%Q %N/ppmtobmp >%s");
 446         else if (!strcasecmp(ext, "gif"))
 447            strcpy(cmd, "%Q %N/ppmtogif -interlace >%s");
 448         else if (!strcasecmp(ext, "ilbm"))
 449            strcpy(cmd, "%N/ppmtoilbm -24if -hires -lace -compress >%s");
 450         else if (!strcasecmp(ext, "ilb"))
 451            strcpy(cmd, "%N/ppmtoilbm -24if -hires -lace -compress >%s");
 452         else if (!strcasecmp(ext, "iff"))
 453            strcpy(cmd, "%N/ppmtoilbm -24if -hires -lace -compress >%s");
 454         else if (!strcasecmp(ext, "icr"))
 455            strcpy(cmd, "%N/ppmtoicr >%s");
 456         else if (!strcasecmp(ext, "map"))
 457            strcpy(cmd, "%N/ppmtomap >%s");
 458         else if (!strcasecmp(ext, "mit"))
 459            strcpy(cmd, "%N/ppmtomitsu -sharpness 4 >%s");
 460         else if (!strcasecmp(ext, "mitsu"))
 461            strcpy(cmd, "%N/ppmtomitsu -sharpness 4 >%s");
 462         else if (!strcasecmp(ext, "pcx"))
 463            strcpy(cmd, "%N/ppmtopcx -24bit -packed >%s");
 464         else if (!strcasecmp(ext, "pgm"))
 465            strcpy(cmd, "%N/ppmtopgm >%s");
 466         else if (!strcasecmp(ext, "pi1"))
 467            strcpy(cmd, "%N/ppmtopi1 >%s");
 468         else if (!strcasecmp(ext, "pic"))
 469            strcpy(cmd, "%Q %N/ppmtopict >%s");
 470         else if (!strcasecmp(ext, "pict"))
 471            strcpy(cmd, "%Q %N/ppmtopict >%s");
 472         else if (!strcasecmp(ext, "pj"))
 473            strcpy(cmd, "%N/ppmtopj >%s");
 474         else if (!strcasecmp(ext, "pjxl"))
 475            strcpy(cmd, "%N/ppmtopjxl >%s");
 476         else if (!strcasecmp(ext, "puz"))
 477            strcpy(cmd, "%N/ppmtopuzz >%s");
 478         else if (!strcasecmp(ext, "puzz"))
 479            strcpy(cmd, "%N/ppmtopuzz >%s");
 480         else if (!strcasecmp(ext, "rgb3"))
 481            strcpy(cmd, "%N/ppmtorgb3 >%s");
 482         else if (!strcasecmp(ext, "six"))
 483            strcpy(cmd, "%N/ppmtosixel >%s");
 484         else if (!strcasecmp(ext, "sixel"))
 485            strcpy(cmd, "%N/ppmtosizel >%s");
 486         else if (!strcasecmp(ext, "tga"))
 487            strcpy(cmd, "%N/ppmtotga -rgb >%s");
 488         else if (!strcasecmp(ext, "targa"))
 489            strcpy(cmd, "%N/ppmtotga -rgb >%s");
 490         else if (!strcasecmp(ext, "uil"))
 491            strcpy(cmd, "%N/ppmtouil >%s");
 492         else if (!strcasecmp(ext, "xpm"))
 493            strcpy(cmd, "%Q %N/ppmtoxpm >%s");
 494         else if (!strcasecmp(ext, "yuv"))
 495            strcpy(cmd, "%N/ppmtoyuv >%s");
 496         else if (!strcasecmp(ext, "png"))
 497            strcpy(cmd, "%N/pnmtopng >%s");
 498         else if (!strcasecmp(ext, "ps"))
 499            strcpy(cmd, "%N/pnmtops -center -scale 100 >%s");
 500         else if (!strcasecmp(ext, "rast"))
 501            strcpy(cmd, "%N/pnmtorast -rle >%s");
 502         else if (!strcasecmp(ext, "ras"))
 503            strcpy(cmd, "%N/pnmtorast -rle >%s");
 504         else if (!strcasecmp(ext, "sgi"))
 505            strcpy(cmd, "%N/pnmtosgi >%s");
 506         else if (!strcasecmp(ext, "sir"))
 507            strcpy(cmd, "%N/pnmtosir >%s");
 508         else if (!strcasecmp(ext, "tif"))
 509            strcpy(cmd, "%N/pnmtotiff -lzw >%s");
 510         else if (!strcasecmp(ext, "tiff"))
 511            strcpy(cmd, "%N/pnmtotiff -lzw >%s");
 512         else if (!strcasecmp(ext, "xwd"))
 513            strcpy(cmd, "%N/pnmtoxwd >%s");
 514         else
 515            ext = "";
 516         if (ext[0])
 517           {
 518              f = open_helper(cmd, file, "wb");
 519              if (f)
 520                {
 521                   if (!fprintf(f, "P6\n# Created by Imlib\n%i %i\n255\n", im->rgb_width, im->rgb_height))
 522                     {
 523                        close_helper(f);
 524                        return 0;
 525                     }
 526                   if (!fwrite(im->rgb_data, 1, (im->rgb_width * im->rgb_height * 3), f))
 527                     {
 528                        close_helper(f);
 529                        return 0;
 530                     }
 531                   if (close_helper(f))
 532                      return 0;
 533                   return 1;
 534                }
 535           }
 536      }
 537    return 0;
 538 }