codec/convert.c

   1 /*
   2  * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
   3  * Copyright (c) 2002-2007, Professor Benoit Macq
   4  * Copyright (c) 2001-2003, David Janssens
   5  * Copyright (c) 2002-2003, Yannick Verschueren
   6  * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
   7  * Copyright (c) 2005, Herve Drolon, FreeImage Team
   8  * Copyright (c) 2006-2007, Parvatha Elangovan
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #ifdef WIN32
  36 #include "../libs/libtiff/tiffio.h"
  37 #include "../libs/libpng/png.h"
  38 #else
  39 #include <tiffio.h>
  40 #include <png.h>
  41 #endif /* WIN32 */
  42 #include "openjpeg.h"
  43 #include "convert.h"
  44
  45 /*
  46  * Get logarithm of an integer and round downwards.
  47  *
  48  * log2(a)
  49  */
  50 static int int_floorlog2(int a) {
  51         int l;
  52         for (l = 0; a > 1; l++) {
  53                 a >>= 1;
  54         }
  55         return l;
  56 }
  57
  58 /*
  59  * Divide an integer by a power of 2 and round upwards.
  60  *
  61  * a divided by 2^b
  62  */
  63 static int int_ceildivpow2(int a, int b) {
  64         return (a + (1 << b) - 1) >> b;
  65 }
  66
  67 /*
  68  * Divide an integer and round upwards.
  69  *
  70  * a divided by b
  71  */
  72 static int int_ceildiv(int a, int b) {
  73         return (a + b - 1) / b;
  74 }
  75
  76
  77 /* -->> -->> -->> -->>
  78
  79   TGA IMAGE FORMAT
  80
  81  <<-- <<-- <<-- <<-- */
  82
  83 // TGA header definition.
  84 #pragma pack(push,1) // Pack structure byte aligned
  85 typedef struct tga_header
  86 {
  87     uint8   id_length;              /* Image id field length    */
  88     uint8   colour_map_type;        /* Colour map type          */
  89     uint8   image_type;             /* Image type               */
  90     /*
  91     ** Colour map specification
  92     */
  93     uint16  colour_map_index;       /* First entry index        */
  94     uint16  colour_map_length;      /* Colour map length        */
  95     uint8   colour_map_entry_size;  /* Colour map entry size    */
  96     /*
  97     ** Image specification
  98     */
  99     uint16  x_origin;               /* x origin of image        */
 100     uint16  y_origin;               /* u origin of image        */
 101     uint16  image_width;            /* Image width              */
 102     uint16  image_height;           /* Image height             */
 103     uint8   pixel_depth;            /* Pixel depth              */
 104     uint8   image_desc;             /* Image descriptor         */
 105 } tga_header;
 106 #pragma pack(pop) // Return to normal structure packing alignment.
 107
 108 int tga_readheader(FILE *fp, uint32 *bits_per_pixel, uint32 *width, uint32 *height, int *flip_image)
 109 {
 110         int palette_size;
 111         tga_header tga ;
 112
 113         if (!bits_per_pixel || !width || !height || !flip_image)
 114                 return 0;
 115
 116         // Read TGA header
 117         fread((uint8*)&tga, sizeof(tga_header), 1, fp);
 118
 119         *bits_per_pixel = tga.pixel_depth;
 120
 121         *width  = tga.image_width;
 122         *height = tga.image_height ;
 123
 124         // Ignore tga identifier, if present ...
 125         if (tga.id_length)
 126         {
 127                 uint8 *id = (uint8 *) malloc(tga.id_length);
 128                 fread(id, tga.id_length, 1, fp);
 129                 free(id);
 130         }
 131
 132         // Test for compressed formats ... not yet supported ...
 133         // Note :-  9 - RLE encoded palettized.
 134         //                 10 - RLE encoded RGB.
 135         if (tga.image_type > 8)
 136         {
 137                 fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n");
 138                 return 0 ;
 139         }
 140
 141         *flip_image = !(tga.image_desc & 32);
 142
 143         // Palettized formats are not yet supported, skip over the palette, if present ...
 144         palette_size = tga.colour_map_length * (tga.colour_map_entry_size/8);
 145
 146         if (palette_size>0)
 147         {
 148                 fprintf(stderr, "File contains a palette - not yet supported.");
 149                 fseek(fp, palette_size, SEEK_CUR);
 150         }
 151         return 1;
 152 }
 153
 154 int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height, bool flip_image)
 155 {
 156         tga_header tga;
 157
 158         if (!bits_per_pixel || !width || !height)
 159                 return 0;
 160
 161         memset(&tga, 0, sizeof(tga_header));
 162
 163         tga.pixel_depth = bits_per_pixel;
 164         tga.image_width  = width;
 165         tga.image_height = height;
 166         tga.image_type = 2; // Uncompressed.
 167         tga.image_desc = 8; // 8 bits per component.
 168
 169         if (flip_image)
 170                 tga.image_desc |= 32;
 171
 172         // Write TGA header
 173         fwrite((uint8*)&tga, sizeof(tga_header), 1, fp);
 174
 175         return 1;
 176 }
 177
 178 opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters) {
 179         FILE *f;
 180         opj_image_t *image;
 181         uint32 image_width, image_height, pixel_bit_depth;
 182         uint32 x, y;
 183         int flip_image=0;
 184         opj_image_cmptparm_t cmptparm[4];       /* maximum 4 components */
 185         int numcomps;
 186         OPJ_COLOR_SPACE color_space;
 187         bool mono ;
 188         bool save_alpha;
 189         int subsampling_dx, subsampling_dy;
 190         int i;
 191
 192         f = fopen(filename, "rb");
 193         if (!f) {
 194                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
 195                 return 0;
 196         }
 197
 198         if (!tga_readheader(f, &pixel_bit_depth, &image_width, &image_height, &flip_image))
 199                 return NULL;
 200
 201         // We currently only support 24 & 32 bit tga's ...
 202         if (!((pixel_bit_depth == 24) || (pixel_bit_depth == 32)))
 203                 return NULL;
 204
 205         /* initialize image components */
 206         memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t));
 207
 208         mono = (pixel_bit_depth == 8) || (pixel_bit_depth == 16);  // Mono with & without alpha.
 209         save_alpha = (pixel_bit_depth == 16) || (pixel_bit_depth == 32); // Mono with alpha, or RGB with alpha
 210
 211         if (mono) {
 212                 color_space = CLRSPC_GRAY;
 213                 numcomps = save_alpha ? 2 : 1;
 214         }
 215         else {
 216                 numcomps = save_alpha ? 4 : 3;
 217                 color_space = CLRSPC_SRGB;
 218         }
 219
 220         subsampling_dx = parameters->subsampling_dx;
 221         subsampling_dy = parameters->subsampling_dy;
 222
 223         for (i = 0; i < numcomps; i++) {
 224                 cmptparm[i].prec = 8;
 225                 cmptparm[i].bpp = 8;
 226                 cmptparm[i].sgnd = 0;
 227                 cmptparm[i].dx = subsampling_dx;
 228                 cmptparm[i].dy = subsampling_dy;
 229                 cmptparm[i].w = image_width;
 230                 cmptparm[i].h = image_height;
 231         }
 232
 233         /* create the image */
 234         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 235
 236         if (!image)
 237                 return NULL;
 238
 239         /* set image offset and reference grid */
 240         image->x0 = parameters->image_offset_x0;
 241         image->y0 = parameters->image_offset_y0;
 242         image->x1 =     !image->x0 ? (image_width - 1) * subsampling_dx + 1 : image->x0 + (image_width - 1) * subsampling_dx + 1;
 243         image->y1 =     !image->y0 ? (image_height - 1) * subsampling_dy + 1 : image->y0 + (image_height - 1) * subsampling_dy + 1;
 244
 245         /* set image data */
 246         for (y=0; y < image_height; y++)
 247         {
 248                 int index;
 249
 250                 if (flip_image)
 251                         index = (image_height-y-1)*image_width;
 252                 else
 253                         index = y*image_width;
 254
 255                 if (numcomps==3)
 256                 {
 257                         for (x=0;x<image_width;x++)
 258                         {
 259                                 uint8 r,g,b;
 260                                 fread(&b, 1, 1, f);
 261                                 fread(&g, 1, 1, f);
 262                                 fread(&r, 1, 1, f);
 263
 264                                 image->comps[0].data[index]=r;
 265                                 image->comps[1].data[index]=g;
 266                                 image->comps[2].data[index]=b;
 267                                 index++;
 268                         }
 269                 }
 270                 else if (numcomps==4)
 271                 {
 272                         for (x=0;x<image_width;x++)
 273                         {
 274                                 uint8 r,g,b,a;
 275                                 fread(&b, 1, 1, f);
 276                                 fread(&g, 1, 1, f);
 277                                 fread(&r, 1, 1, f);
 278                                 fread(&a, 1, 1, f);
 279
 280                                 image->comps[0].data[index]=r;
 281                                 image->comps[1].data[index]=g;
 282                                 image->comps[2].data[index]=b;
 283                                 image->comps[3].data[index]=a;
 284                                 index++;
 285                         }
 286                 }
 287                 else {
 288                         fprintf(stderr, "Currently unsupported bit depth : %s\n", filename);
 289                 }
 290         }
 291         return image;
 292 }
 293
 294 int imagetotga(opj_image_t * image, const char *outfile) {
 295         int width, height, bpp, x, y;
 296         bool write_alpha;
 297         int i;
 298         uint32 alpha_channel;
 299         float r,g,b,a;
 300         uint8 value;
 301         float scale;
 302         FILE *fdest;
 303
 304         fdest = fopen(outfile, "wb");
 305         if (!fdest) {
 306                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
 307                 return 1;
 308         }
 309
 310         for (i = 0; i < image->numcomps-1; i++) {
 311                 if ((image->comps[0].dx != image->comps[i+1].dx)
 312                         ||(image->comps[0].dy != image->comps[i+1].dy)
 313                         ||(image->comps[0].prec != image->comps[i+1].prec))     {
 314       fprintf(stderr, "Unable to create a tga file with such J2K image charateristics.");
 315       return 1;
 316    }
 317         }
 318
 319         width = image->comps[0].w;
 320         height = image->comps[0].h;
 321
 322         // Mono with alpha, or RGB with alpha.
 323         write_alpha = (image->numcomps==2) || (image->numcomps==4);
 324
 325         // Write TGA header
 326         bpp = write_alpha ? 32 : 24;
 327         if (!tga_writeheader(fdest, bpp, width , height, true))
 328                 return 1;
 329
 330         alpha_channel = image->numcomps-1;
 331
 332         scale = 255.0f / (float)((1<<image->comps[0].prec)-1);
 333
 334         for (y=0; y < height; y++) {
 335                 uint32 index=y*width;
 336
 337                 for (x=0; x < width; x++, index++)      {
 338                         r = (float)(image->comps[0].data[index]);
 339
 340                         if (image->numcomps>2) {
 341                                 g = (float)(image->comps[1].data[index]);
 342                                 b = (float)(image->comps[2].data[index]);
 343                         }
 344                         else  {// Greyscale ...
 345                                 g = r;
 346                                 b = r;
 347                         }
 348
 349                         // TGA format writes BGR ...
 350                         value = (uint8)(b*scale);
 351                         fwrite(&value,1,1,fdest);
 352
 353                         value = (uint8)(g*scale);
 354                         fwrite(&value,1,1,fdest);
 355
 356                         value = (uint8)(r*scale);
 357                         fwrite(&value,1,1,fdest);
 358
 359                         if (write_alpha) {
 360                                 a = (float)(image->comps[alpha_channel].data[index]);
 361                                 value = (uint8)(a*scale);
 362                                 fwrite(&value,1,1,fdest);
 363                         }
 364                 }
 365         }
 366
 367         return 0;
 368 }
 369
 370 /* -->> -->> -->> -->>
 371
 372   BMP IMAGE FORMAT
 373
 374  <<-- <<-- <<-- <<-- */
 375
 376 /* WORD defines a two byte word */
 377 typedef unsigned short int WORD;
 378
 379 /* DWORD defines a four byte word */
 380 typedef unsigned long int DWORD;
 381
 382 typedef struct {
 383   WORD bfType;                  /* 'BM' for Bitmap (19776) */
 384   DWORD bfSize;                 /* Size of the file        */
 385   WORD bfReserved1;             /* Reserved : 0            */
 386   WORD bfReserved2;             /* Reserved : 0            */
 387   DWORD bfOffBits;              /* Offset                  */
 388 } BITMAPFILEHEADER_t;
 389
 390 typedef struct {
 391   DWORD biSize;                 /* Size of the structure in bytes */
 392   DWORD biWidth;                /* Width of the image in pixels */
 393   DWORD biHeight;               /* Heigth of the image in pixels */
 394   WORD biPlanes;                /* 1 */
 395   WORD biBitCount;              /* Number of color bits by pixels */
 396   DWORD biCompression;          /* Type of encoding 0: none 1: RLE8 2: RLE4 */
 397   DWORD biSizeImage;            /* Size of the image in bytes */
 398   DWORD biXpelsPerMeter;        /* Horizontal (X) resolution in pixels/meter */
 399   DWORD biYpelsPerMeter;        /* Vertical (Y) resolution in pixels/meter */
 400   DWORD biClrUsed;              /* Number of color used in the image (0: ALL) */
 401   DWORD biClrImportant;         /* Number of important color (0: ALL) */
 402 } BITMAPINFOHEADER_t;
 403
 404 opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters) {
 405         int subsampling_dx = parameters->subsampling_dx;
 406         int subsampling_dy = parameters->subsampling_dy;
 407
 408         int i, numcomps, w, h;
 409         OPJ_COLOR_SPACE color_space;
 410         opj_image_cmptparm_t cmptparm[3];       /* maximum of 3 components */
 411         opj_image_t * image = NULL;
 412
 413         FILE *IN;
 414         BITMAPFILEHEADER_t File_h;
 415         BITMAPINFOHEADER_t Info_h;
 416         unsigned char *RGB;
 417         unsigned char *table_R, *table_G, *table_B;
 418         unsigned int j, PAD = 0;
 419
 420         int x, y, index;
 421         int gray_scale = 1, not_end_file = 1;
 422
 423         unsigned int line = 0, col = 0;
 424         unsigned char v, v2;
 425         DWORD W, H;
 426
 427         IN = fopen(filename, "rb");
 428         if (!IN) {
 429                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
 430                 return 0;
 431         }
 432
 433         File_h.bfType = getc(IN);
 434         File_h.bfType = (getc(IN) << 8) + File_h.bfType;
 435
 436         if (File_h.bfType != 19778) {
 437                 fprintf(stderr,"Error, not a BMP file!\n");
 438                 return 0;
 439         } else {
 440                 /* FILE HEADER */
 441                 /* ------------- */
 442                 File_h.bfSize = getc(IN);
 443                 File_h.bfSize = (getc(IN) << 8) + File_h.bfSize;
 444                 File_h.bfSize = (getc(IN) << 16) + File_h.bfSize;
 445                 File_h.bfSize = (getc(IN) << 24) + File_h.bfSize;
 446
 447                 File_h.bfReserved1 = getc(IN);
 448                 File_h.bfReserved1 = (getc(IN) << 8) + File_h.bfReserved1;
 449
 450                 File_h.bfReserved2 = getc(IN);
 451                 File_h.bfReserved2 = (getc(IN) << 8) + File_h.bfReserved2;
 452
 453                 File_h.bfOffBits = getc(IN);
 454                 File_h.bfOffBits = (getc(IN) << 8) + File_h.bfOffBits;
 455                 File_h.bfOffBits = (getc(IN) << 16) + File_h.bfOffBits;
 456                 File_h.bfOffBits = (getc(IN) << 24) + File_h.bfOffBits;
 457
 458                 /* INFO HEADER */
 459                 /* ------------- */
 460
 461                 Info_h.biSize = getc(IN);
 462                 Info_h.biSize = (getc(IN) << 8) + Info_h.biSize;
 463                 Info_h.biSize = (getc(IN) << 16) + Info_h.biSize;
 464                 Info_h.biSize = (getc(IN) << 24) + Info_h.biSize;
 465
 466                 Info_h.biWidth = getc(IN);
 467                 Info_h.biWidth = (getc(IN) << 8) + Info_h.biWidth;
 468                 Info_h.biWidth = (getc(IN) << 16) + Info_h.biWidth;
 469                 Info_h.biWidth = (getc(IN) << 24) + Info_h.biWidth;
 470                 w = Info_h.biWidth;
 471
 472                 Info_h.biHeight = getc(IN);
 473                 Info_h.biHeight = (getc(IN) << 8) + Info_h.biHeight;
 474                 Info_h.biHeight = (getc(IN) << 16) + Info_h.biHeight;
 475                 Info_h.biHeight = (getc(IN) << 24) + Info_h.biHeight;
 476                 h = Info_h.biHeight;
 477
 478                 Info_h.biPlanes = getc(IN);
 479                 Info_h.biPlanes = (getc(IN) << 8) + Info_h.biPlanes;
 480
 481                 Info_h.biBitCount = getc(IN);
 482                 Info_h.biBitCount = (getc(IN) << 8) + Info_h.biBitCount;
 483
 484                 Info_h.biCompression = getc(IN);
 485                 Info_h.biCompression = (getc(IN) << 8) + Info_h.biCompression;
 486                 Info_h.biCompression = (getc(IN) << 16) + Info_h.biCompression;
 487                 Info_h.biCompression = (getc(IN) << 24) + Info_h.biCompression;
 488
 489                 Info_h.biSizeImage = getc(IN);
 490                 Info_h.biSizeImage = (getc(IN) << 8) + Info_h.biSizeImage;
 491                 Info_h.biSizeImage = (getc(IN) << 16) + Info_h.biSizeImage;
 492                 Info_h.biSizeImage = (getc(IN) << 24) + Info_h.biSizeImage;
 493
 494                 Info_h.biXpelsPerMeter = getc(IN);
 495                 Info_h.biXpelsPerMeter = (getc(IN) << 8) + Info_h.biXpelsPerMeter;
 496                 Info_h.biXpelsPerMeter = (getc(IN) << 16) + Info_h.biXpelsPerMeter;
 497                 Info_h.biXpelsPerMeter = (getc(IN) << 24) + Info_h.biXpelsPerMeter;
 498
 499                 Info_h.biYpelsPerMeter = getc(IN);
 500                 Info_h.biYpelsPerMeter = (getc(IN) << 8) + Info_h.biYpelsPerMeter;
 501                 Info_h.biYpelsPerMeter = (getc(IN) << 16) + Info_h.biYpelsPerMeter;
 502                 Info_h.biYpelsPerMeter = (getc(IN) << 24) + Info_h.biYpelsPerMeter;
 503
 504                 Info_h.biClrUsed = getc(IN);
 505                 Info_h.biClrUsed = (getc(IN) << 8) + Info_h.biClrUsed;
 506                 Info_h.biClrUsed = (getc(IN) << 16) + Info_h.biClrUsed;
 507                 Info_h.biClrUsed = (getc(IN) << 24) + Info_h.biClrUsed;
 508
 509                 Info_h.biClrImportant = getc(IN);
 510                 Info_h.biClrImportant = (getc(IN) << 8) + Info_h.biClrImportant;
 511                 Info_h.biClrImportant = (getc(IN) << 16) + Info_h.biClrImportant;
 512                 Info_h.biClrImportant = (getc(IN) << 24) + Info_h.biClrImportant;
 513
 514                 /* Read the data and store them in the OUT file */
 515
 516                 if (Info_h.biBitCount == 24) {
 517                         numcomps = 3;
 518                         color_space = CLRSPC_SRGB;
 519                         /* initialize image components */
 520                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 521                         for(i = 0; i < numcomps; i++) {
 522                                 cmptparm[i].prec = 8;
 523                                 cmptparm[i].bpp = 8;
 524                                 cmptparm[i].sgnd = 0;
 525                                 cmptparm[i].dx = subsampling_dx;
 526                                 cmptparm[i].dy = subsampling_dy;
 527                                 cmptparm[i].w = w;
 528                                 cmptparm[i].h = h;
 529                         }
 530                         /* create the image */
 531                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 532                         if(!image) {
 533                                 fclose(IN);
 534                                 return NULL;
 535                         }
 536
 537                         /* set image offset and reference grid */
 538                         image->x0 = parameters->image_offset_x0;
 539                         image->y0 = parameters->image_offset_y0;
 540                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 541                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 542
 543                         /* set image data */
 544
 545                         /* Place the cursor at the beginning of the image information */
 546                         fseek(IN, 0, SEEK_SET);
 547                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 548
 549                         W = Info_h.biWidth;
 550                         H = Info_h.biHeight;
 551
 552                         /* PAD = 4 - (3 * W) % 4; */
 553                         /* PAD = (PAD == 4) ? 0 : PAD; */
 554                         PAD = (3 * W) % 4 ? 4 - (3 * W) % 4 : 0;
 555
 556                         RGB = (unsigned char *) malloc((3 * W + PAD) * H * sizeof(unsigned char));
 557
 558                         fread(RGB, sizeof(unsigned char), (3 * W + PAD) * H, IN);
 559
 560                         index = 0;
 561
 562                         for(y = 0; y < (int)H; y++) {
 563                                 unsigned char *scanline = RGB + (3 * W + PAD) * (H - 1 - y);
 564                                 for(x = 0; x < (int)W; x++) {
 565                                         unsigned char *pixel = &scanline[3 * x];
 566                                         image->comps[0].data[index] = pixel[2]; /* R */
 567                                         image->comps[1].data[index] = pixel[1]; /* G */
 568                                         image->comps[2].data[index] = pixel[0]; /* B */
 569                                         index++;
 570                                 }
 571                         }
 572
 573                         free(RGB);
 574
 575                 } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) {
 576                         table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));
 577                         table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));
 578                         table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));
 579
 580                         for (j = 0; j < Info_h.biClrUsed; j++) {
 581                                 table_B[j] = getc(IN);
 582                                 table_G[j] = getc(IN);
 583                                 table_R[j] = getc(IN);
 584                                 getc(IN);
 585                                 if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
 586                                         gray_scale = 0;
 587                         }
 588
 589                         /* Place the cursor at the beginning of the image information */
 590                         fseek(IN, 0, SEEK_SET);
 591                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 592
 593                         W = Info_h.biWidth;
 594                         H = Info_h.biHeight;
 595                         if (Info_h.biWidth % 2)
 596                                 W++;
 597
 598                         numcomps = gray_scale ? 1 : 3;
 599                         color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;
 600                         /* initialize image components */
 601                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 602                         for(i = 0; i < numcomps; i++) {
 603                                 cmptparm[i].prec = 8;
 604                                 cmptparm[i].bpp = 8;
 605                                 cmptparm[i].sgnd = 0;
 606                                 cmptparm[i].dx = subsampling_dx;
 607                                 cmptparm[i].dy = subsampling_dy;
 608                                 cmptparm[i].w = w;
 609                                 cmptparm[i].h = h;
 610                         }
 611                         /* create the image */
 612                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 613                         if(!image) {
 614                                 fclose(IN);
 615                                 return NULL;
 616                         }
 617
 618                         /* set image offset and reference grid */
 619                         image->x0 = parameters->image_offset_x0;
 620                         image->y0 = parameters->image_offset_y0;
 621                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 622                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 623
 624                         /* set image data */
 625
 626                         RGB = (unsigned char *) malloc(W * H * sizeof(unsigned char));
 627
 628                         fread(RGB, sizeof(unsigned char), W * H, IN);
 629                         if (gray_scale) {
 630                                 index = 0;
 631                                 for (j = 0; j < W * H; j++) {
 632                                         if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {
 633                                                 image->comps[0].data[index] = table_R[RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)]];
 634                                                 index++;
 635                                         }
 636                                 }
 637
 638                         } else {
 639                                 index = 0;
 640                                 for (j = 0; j < W * H; j++) {
 641                                         if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {
 642                                                 unsigned char pixel_index = RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)];
 643                                                 image->comps[0].data[index] = table_R[pixel_index];
 644                                                 image->comps[1].data[index] = table_G[pixel_index];
 645                                                 image->comps[2].data[index] = table_B[pixel_index];
 646                                                 index++;
 647                                         }
 648                                 }
 649                         }
 650                         free(RGB);
 651       free(table_R);
 652       free(table_G);
 653       free(table_B);
 654                 } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) {
 655                         table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));
 656                         table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));
 657                         table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));
 658
 659                         for (j = 0; j < Info_h.biClrUsed; j++) {
 660                                 table_B[j] = getc(IN);
 661                                 table_G[j] = getc(IN);
 662                                 table_R[j] = getc(IN);
 663                                 getc(IN);
 664                                 if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
 665                                         gray_scale = 0;
 666                         }
 667
 668                         numcomps = gray_scale ? 1 : 3;
 669                         color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;
 670                         /* initialize image components */
 671                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 672                         for(i = 0; i < numcomps; i++) {
 673                                 cmptparm[i].prec = 8;
 674                                 cmptparm[i].bpp = 8;
 675                                 cmptparm[i].sgnd = 0;
 676                                 cmptparm[i].dx = subsampling_dx;
 677                                 cmptparm[i].dy = subsampling_dy;
 678                                 cmptparm[i].w = w;
 679                                 cmptparm[i].h = h;
 680                         }
 681                         /* create the image */
 682                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 683                         if(!image) {
 684                                 fclose(IN);
 685                                 return NULL;
 686                         }
 687
 688                         /* set image offset and reference grid */
 689                         image->x0 = parameters->image_offset_x0;
 690                         image->y0 = parameters->image_offset_y0;
 691                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 692                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 693
 694                         /* set image data */
 695
 696                         /* Place the cursor at the beginning of the image information */
 697                         fseek(IN, 0, SEEK_SET);
 698                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 699
 700                         RGB = (unsigned char *) malloc(Info_h.biWidth * Info_h.biHeight * sizeof(unsigned char));
 701
 702                         while (not_end_file) {
 703                                 v = getc(IN);
 704                                 if (v) {
 705                                         v2 = getc(IN);
 706                                         for (i = 0; i < (int) v; i++) {
 707                                                 RGB[line * Info_h.biWidth + col] = v2;
 708                                                 col++;
 709                                         }
 710                                 } else {
 711                                         v = getc(IN);
 712                                         switch (v) {
 713                                                 case 0:
 714                                                         col = 0;
 715                                                         line++;
 716                                                         break;
 717                                                 case 1:
 718                                                         line++;
 719                                                         not_end_file = 0;
 720                                                         break;
 721                                                 case 2:
 722                                                         fprintf(stderr,"No Delta supported\n");
 723                                                         opj_image_destroy(image);
 724                                                         fclose(IN);
 725                                                         return NULL;
 726                                                 default:
 727                                                         for (i = 0; i < v; i++) {
 728                                                                 v2 = getc(IN);
 729                                                                 RGB[line * Info_h.biWidth + col] = v2;
 730                                                                 col++;
 731                                                         }
 732                                                         if (v % 2)
 733                                                                 v2 = getc(IN);
 734                                                         break;
 735                                         }
 736                                 }
 737                         }
 738                         if (gray_scale) {
 739                                 index = 0;
 740                                 for (line = 0; line < Info_h.biHeight; line++) {
 741                                         for (col = 0; col < Info_h.biWidth; col++) {
 742                                                 image->comps[0].data[index] = table_R[(int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col]];
 743                                                 index++;
 744                                         }
 745                                 }
 746                         } else {
 747                                 index = 0;
 748                                 for (line = 0; line < Info_h.biHeight; line++) {
 749                                         for (col = 0; col < Info_h.biWidth; col++) {
 750                                                 unsigned char pixel_index = (int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col];
 751                                                 image->comps[0].data[index] = table_R[pixel_index];
 752                                                 image->comps[1].data[index] = table_G[pixel_index];
 753                                                 image->comps[2].data[index] = table_B[pixel_index];
 754                                                 index++;
 755                                         }
 756                                 }
 757                         }
 758                         free(RGB);
 759       free(table_R);
 760       free(table_G);
 761       free(table_B);
 762         } else {
 763                 fprintf(stderr,
 764                         "Other system than 24 bits/pixels or 8 bits (no RLE coding) is not yet implemented [%d]\n", Info_h.biBitCount);
 765         }
 766         fclose(IN);
 767  }
 768
 769  return image;
 770 }
 771
 772 int imagetobmp(opj_image_t * image, const char *outfile) {
 773         int w, h;
 774         int i, pad;
 775         FILE *fdest = NULL;
 776         int adjustR, adjustG, adjustB;
 777
 778         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
 779                 && image->comps[1].dx == image->comps[2].dx
 780                 && image->comps[0].dy == image->comps[1].dy
 781                 && image->comps[1].dy == image->comps[2].dy
 782                 && image->comps[0].prec == image->comps[1].prec
 783                 && image->comps[1].prec == image->comps[2].prec) {
 784
 785                 /* -->> -->> -->> -->>
 786                 24 bits color
 787                 <<-- <<-- <<-- <<-- */
 788
 789                 fdest = fopen(outfile, "wb");
 790                 if (!fdest) {
 791                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
 792                         return 1;
 793                 }
 794
 795                 w = image->comps[0].w;
 796                 h = image->comps[0].h;
 797
 798                 fprintf(fdest, "BM");
 799
 800                 /* FILE HEADER */
 801                 /* ------------- */
 802                 fprintf(fdest, "%c%c%c%c",
 803                         (unsigned char) (h * w * 3 + 3 * h * (w % 2) + 54) & 0xff,
 804                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54)     >> 8) & 0xff,
 805                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54)     >> 16) & 0xff,
 806                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54)     >> 24) & 0xff);
 807                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 808                 fprintf(fdest, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
 809
 810                 /* INFO HEADER   */
 811                 /* ------------- */
 812                 fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff,     ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
 813                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),
 814                         (unsigned char) ((w) >> 8) & 0xff,
 815                         (unsigned char) ((w) >> 16) & 0xff,
 816                         (unsigned char) ((w) >> 24) & 0xff);
 817                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),
 818                         (unsigned char) ((h) >> 8) & 0xff,
 819                         (unsigned char) ((h) >> 16) & 0xff,
 820                         (unsigned char) ((h) >> 24) & 0xff);
 821                 fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
 822                 fprintf(fdest, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
 823                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 824                 fprintf(fdest, "%c%c%c%c", (unsigned char) (3 * h * w + 3 * h * (w % 2)) & 0xff,
 825                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 8) & 0xff,
 826                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 16) & 0xff,
 827                         (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 24) & 0xff);
 828                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 829                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 830                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 831                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 832
 833                 if (image->comps[0].prec > 8) {
 834                         adjustR = image->comps[0].prec - 8;
 835                         printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
 836                 }
 837                 else
 838                         adjustR = 0;
 839                 if (image->comps[1].prec > 8) {
 840                         adjustG = image->comps[1].prec - 8;
 841                         printf("BMP CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
 842                 }
 843                 else
 844                         adjustG = 0;
 845                 if (image->comps[2].prec > 8) {
 846                         adjustB = image->comps[2].prec - 8;
 847                         printf("BMP CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
 848                 }
 849                 else
 850                         adjustB = 0;
 851
 852                 for (i = 0; i < w * h; i++) {
 853                         unsigned char rc, gc, bc;
 854                         int r, g, b;
 855
 856                         r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
 857                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
 858                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
 859                         g = image->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
 860                         g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
 861                         gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
 862                         b = image->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
 863                         b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
 864                         bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
 865
 866                         fprintf(fdest, "%c%c%c", bc, gc, rc);
 867
 868                         if ((i + 1) % w == 0) {
 869                                 for (pad = (3 * w) % 4 ? 4 - (3 * w) % 4 : 0; pad > 0; pad--)   /* ADD */
 870                                         fprintf(fdest, "%c", 0);
 871                         }
 872                 }
 873                 fclose(fdest);
 874         } else {                        /* Gray-scale */
 875
 876                 /* -->> -->> -->> -->>
 877                 8 bits non code (Gray scale)
 878                 <<-- <<-- <<-- <<-- */
 879
 880                 fdest = fopen(outfile, "wb");
 881                 w = image->comps[0].w;
 882                 h = image->comps[0].h;
 883
 884                 fprintf(fdest, "BM");
 885
 886                 /* FILE HEADER */
 887                 /* ------------- */
 888                 fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + 54 + 1024 + h * (w % 2)) & 0xff,
 889                         (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 8) & 0xff,
 890                         (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 16) & 0xff,
 891                         (unsigned char) ((h * w + 54 + 1024 + w * (w % 2)) >> 24) & 0xff);
 892                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 893                 fprintf(fdest, "%c%c%c%c", (54 + 1024) & 0xff, ((54 + 1024) >> 8) & 0xff,
 894                         ((54 + 1024) >> 16) & 0xff,
 895                         ((54 + 1024) >> 24) & 0xff);
 896
 897                 /* INFO HEADER */
 898                 /* ------------- */
 899                 fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff,     ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
 900                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),
 901                         (unsigned char) ((w) >> 8) & 0xff,
 902                         (unsigned char) ((w) >> 16) & 0xff,
 903                         (unsigned char) ((w) >> 24) & 0xff);
 904                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),
 905                         (unsigned char) ((h) >> 8) & 0xff,
 906                         (unsigned char) ((h) >> 16) & 0xff,
 907                         (unsigned char) ((h) >> 24) & 0xff);
 908                 fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
 909                 fprintf(fdest, "%c%c", (8) & 0xff, ((8) >> 8) & 0xff);
 910                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 911                 fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + h * (w % 2)) & 0xff,
 912                         (unsigned char) ((h * w + h * (w % 2)) >> 8) &  0xff,
 913                         (unsigned char) ((h * w + h * (w % 2)) >> 16) & 0xff,
 914                         (unsigned char) ((h * w + h * (w % 2)) >> 24) & 0xff);
 915                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 916                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 917                 fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
 918                 fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
 919
 920                 if (image->comps[0].prec > 8) {
 921                         adjustR = image->comps[0].prec - 8;
 922                         printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
 923                 }else
 924                         adjustR = 0;
 925
 926                 for (i = 0; i < 256; i++) {
 927                         fprintf(fdest, "%c%c%c%c", i, i, i, 0);
 928                 }
 929
 930                 for (i = 0; i < w * h; i++) {
 931                         unsigned char rc;
 932                         int r;
 933
 934                         r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
 935                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
 936                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
 937
 938                         fprintf(fdest, "%c", rc);
 939
 940                         if ((i + 1) % w == 0) {
 941                                 for (pad = w % 4 ? 4 - w % 4 : 0; pad > 0; pad--)       /* ADD */
 942                                         fprintf(fdest, "%c", 0);
 943                         }
 944                 }
 945                 fclose(fdest);
 946         }
 947
 948         return 0;
 949 }
 950
 951 /* -->> -->> -->> -->>
 952
 953 PGX IMAGE FORMAT
 954
 955 <<-- <<-- <<-- <<-- */
 956
 957
 958 unsigned char readuchar(FILE * f)
 959 {
 960   unsigned char c1;
 961   fread(&c1, 1, 1, f);
 962   return c1;
 963 }
 964
 965 unsigned short readushort(FILE * f, int bigendian)
 966 {
 967   unsigned char c1, c2;
 968   fread(&c1, 1, 1, f);
 969   fread(&c2, 1, 1, f);
 970   if (bigendian)
 971     return (c1 << 8) + c2;
 972   else
 973     return (c2 << 8) + c1;
 974 }
 975
 976 unsigned int readuint(FILE * f, int bigendian)
 977 {
 978   unsigned char c1, c2, c3, c4;
 979   fread(&c1, 1, 1, f);
 980   fread(&c2, 1, 1, f);
 981   fread(&c3, 1, 1, f);
 982   fread(&c4, 1, 1, f);
 983   if (bigendian)
 984     return (c1 << 24) + (c2 << 16) + (c3 << 8) + c4;
 985   else
 986     return (c4 << 24) + (c3 << 16) + (c2 << 8) + c1;
 987 }
 988
 989 opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters) {
 990         FILE *f = NULL;
 991         int w, h, prec;
 992         int i, numcomps, max;
 993         OPJ_COLOR_SPACE color_space;
 994         opj_image_cmptparm_t cmptparm;  /* maximum of 1 component  */
 995         opj_image_t * image = NULL;
 996
 997         char endian1,endian2,sign;
 998         char signtmp[32];
 999
1000         char temp[32];
1001         int bigendian;
1002         opj_image_comp_t *comp = NULL;
1003
1004         numcomps = 1;
1005         color_space = CLRSPC_GRAY;
1006
1007         memset(&cmptparm, 0, sizeof(opj_image_cmptparm_t));
1008
1009         max = 0;
1010
1011         f = fopen(filename, "rb");
1012         if (!f) {
1013           fprintf(stderr, "Failed to open %s for reading !\n", filename);
1014           return NULL;
1015         }
1016
1017         fseek(f, 0, SEEK_SET);
1018         fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d",temp,&endian1,&endian2,signtmp,&prec,temp,&w,temp,&h);
1019
1020         i=0;
1021         sign='+';
1022         while (signtmp[i]!='\0') {
1023                 if (signtmp[i]=='-') sign='-';
1024                 i++;
1025         }
1026
1027         fgetc(f);
1028         if (endian1=='M' && endian2=='L') {
1029                 bigendian = 1;
1030         } else if (endian2=='M' && endian1=='L') {
1031                 bigendian = 0;
1032         } else {
1033                 fprintf(stderr, "Bad pgx header, please check input file\n");
1034                 return NULL;
1035         }
1036
1037         /* initialize image component */
1038
1039         cmptparm.x0 = parameters->image_offset_x0;
1040         cmptparm.y0 = parameters->image_offset_y0;
1041         cmptparm.w = !cmptparm.x0 ? (w - 1) * parameters->subsampling_dx + 1 : cmptparm.x0 + (w - 1) * parameters->subsampling_dx + 1;
1042         cmptparm.h = !cmptparm.y0 ? (h - 1) * parameters->subsampling_dy + 1 : cmptparm.y0 + (h - 1) * parameters->subsampling_dy + 1;
1043
1044         if (sign == '-') {
1045                 cmptparm.sgnd = 1;
1046         } else {
1047                 cmptparm.sgnd = 0;
1048         }
1049         cmptparm.prec = prec;
1050         cmptparm.bpp = prec;
1051         cmptparm.dx = parameters->subsampling_dx;
1052         cmptparm.dy = parameters->subsampling_dy;
1053
1054         /* create the image */
1055         image = opj_image_create(numcomps, &cmptparm, color_space);
1056         if(!image) {
1057                 fclose(f);
1058                 return NULL;
1059         }
1060         /* set image offset and reference grid */
1061         image->x0 = cmptparm.x0;
1062         image->y0 = cmptparm.x0;
1063         image->x1 = cmptparm.w;
1064         image->y1 = cmptparm.h;
1065
1066         /* set image data */
1067
1068         comp = &image->comps[0];
1069
1070         for (i = 0; i < w * h; i++) {
1071                 int v;
1072                 if (comp->prec <= 8) {
1073                         if (!comp->sgnd) {
1074                                 v = readuchar(f);
1075                         } else {
1076                                 v = (char) readuchar(f);
1077                         }
1078                 } else if (comp->prec <= 16) {
1079                         if (!comp->sgnd) {
1080                                 v = readushort(f, bigendian);
1081                         } else {
1082                                 v = (short) readushort(f, bigendian);
1083                         }
1084                 } else {
1085                         if (!comp->sgnd) {
1086                                 v = readuint(f, bigendian);
1087                         } else {
1088                                 v = (int) readuint(f, bigendian);
1089                         }
1090                 }
1091                 if (v > max)
1092                         max = v;
1093                 comp->data[i] = v;
1094         }
1095         fclose(f);
1096         comp->bpp = int_floorlog2(max) + 1;
1097
1098         return image;
1099 }
1100
1101 int imagetopgx(opj_image_t * image, const char *outfile) {
1102         int w, h;
1103         int i, j, compno;
1104         FILE *fdest = NULL;
1105
1106         for (compno = 0; compno < image->numcomps; compno++) {
1107                 opj_image_comp_t *comp = &image->comps[compno];
1108                 char bname[256]; /* buffer for name */
1109     char *name = bname; /* pointer */
1110     int nbytes = 0;
1111     const size_t olen = strlen(outfile);
1112     const size_t dotpos = olen - 4;
1113     const size_t total = dotpos + 1 + 1 + 4; /* '-' + '[1-3]' + '.pgx' */
1114     if( outfile[dotpos] != '.' ) {
1115       /* `pgx` was recognized but there is no dot at expected position */
1116       fprintf(stderr, "ERROR -> Impossible happen." );
1117       return 1;
1118       }
1119     if( total > 256 ) {
1120       name = (char*)malloc(total+1);
1121       }
1122     strncpy(name, outfile, dotpos);
1123                 if (image->numcomps > 1) {
1124                         sprintf(name+dotpos, "-%d.pgx", compno);
1125                 } else {
1126                         strcpy(name+dotpos, ".pgx");
1127                 }
1128                 fdest = fopen(name, "wb");
1129                 if (!fdest) {
1130                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
1131                         return 1;
1132                 }
1133     /* dont need name anymore */
1134     if( total > 256 ) {
1135       free(name);
1136       }
1137
1138                 w = image->comps[compno].w;
1139                 h = image->comps[compno].h;
1140
1141                 fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, w, h);
1142                 if (comp->prec <= 8) {
1143                         nbytes = 1;
1144                 } else if (comp->prec <= 16) {
1145                         nbytes = 2;
1146                 } else {
1147                         nbytes = 4;
1148                 }
1149                 for (i = 0; i < w * h; i++) {
1150                         int v = image->comps[compno].data[i];
1151                         for (j = nbytes - 1; j >= 0; j--) {
1152                                 char byte = (char) (v >> (j * 8));
1153                                 fwrite(&byte, 1, 1, fdest);
1154                         }
1155                 }
1156                 fclose(fdest);
1157         }
1158
1159         return 0;
1160 }
1161
1162 /* -->> -->> -->> -->>
1163
1164 PNM IMAGE FORMAT
1165
1166 <<-- <<-- <<-- <<-- */
1167
1168 opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
1169         int subsampling_dx = parameters->subsampling_dx;
1170         int subsampling_dy = parameters->subsampling_dy;
1171
1172         FILE *f = NULL;
1173         int i, compno, numcomps, w, h;
1174         OPJ_COLOR_SPACE color_space;
1175         opj_image_cmptparm_t cmptparm[3];       /* maximum of 3 components */
1176         opj_image_t * image = NULL;
1177         char value;
1178
1179         f = fopen(filename, "rb");
1180         if (!f) {
1181                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
1182                 return 0;
1183         }
1184
1185         if (fgetc(f) != 'P')
1186                 return 0;
1187         value = fgetc(f);
1188
1189                 switch(value) {
1190                         case '2':       /* greyscale image type */
1191                         case '5':
1192                                 numcomps = 1;
1193                                 color_space = CLRSPC_GRAY;
1194                                 break;
1195
1196                         case '3':       /* RGB image type */
1197                         case '6':
1198                                 numcomps = 3;
1199                                 color_space = CLRSPC_SRGB;
1200                                 break;
1201
1202                         default:
1203                                 fclose(f);
1204                                 return NULL;
1205                 }
1206
1207                 fgetc(f);
1208
1209                 /* skip comments */
1210                 while(fgetc(f) == '#') while(fgetc(f) != '\n');
1211
1212                 fseek(f, -1, SEEK_CUR);
1213                 fscanf(f, "%d %d\n255", &w, &h);
1214                 fgetc(f);       /* <cr><lf> */
1215
1216         /* initialize image components */
1217         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
1218         for(i = 0; i < numcomps; i++) {
1219                 cmptparm[i].prec = 8;
1220                 cmptparm[i].bpp = 8;
1221                 cmptparm[i].sgnd = 0;
1222                 cmptparm[i].dx = subsampling_dx;
1223                 cmptparm[i].dy = subsampling_dy;
1224                 cmptparm[i].w = w;
1225                 cmptparm[i].h = h;
1226         }
1227         /* create the image */
1228         image = opj_image_create(numcomps, &cmptparm[0], color_space);
1229         if(!image) {
1230                 fclose(f);
1231                 return NULL;
1232         }
1233
1234         /* set image offset and reference grid */
1235         image->x0 = parameters->image_offset_x0;
1236         image->y0 = parameters->image_offset_y0;
1237         image->x1 = parameters->image_offset_x0 + (w - 1) *     subsampling_dx + 1;
1238         image->y1 = parameters->image_offset_y0 + (h - 1) *     subsampling_dy + 1;
1239
1240         /* set image data */
1241
1242         if ((value == '2') || (value == '3')) { /* ASCII */
1243                 for (i = 0; i < w * h; i++) {
1244                         for(compno = 0; compno < numcomps; compno++) {
1245                                 unsigned int index = 0;
1246                                 fscanf(f, "%u", &index);
1247                                 /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
1248                                 image->comps[compno].data[i] = index;
1249                         }
1250                 }
1251         } else if ((value == '5') || (value == '6')) {  /* BINARY */
1252                 for (i = 0; i < w * h; i++) {
1253                         for(compno = 0; compno < numcomps; compno++) {
1254                                 unsigned char index = 0;
1255                                 fread(&index, 1, 1, f);
1256                                 /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
1257                                 image->comps[compno].data[i] = index;
1258                         }
1259                 }
1260         }
1261
1262         fclose(f);
1263
1264         return image;
1265 }
1266
1267 int imagetopnm(opj_image_t * image, const char *outfile) {
1268         int w, wr, h, hr, max;
1269         int i, compno;
1270         int adjustR, adjustG, adjustB, adjustX;
1271         FILE *fdest = NULL;
1272         char S2;
1273         const char *tmp = outfile;
1274
1275         while (*tmp) {
1276                 tmp++;
1277         }
1278         tmp--;
1279         tmp--;
1280         S2 = *tmp;
1281
1282         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
1283                 && image->comps[1].dx == image->comps[2].dx
1284                 && image->comps[0].dy == image->comps[1].dy
1285                 && image->comps[1].dy == image->comps[2].dy
1286                 && image->comps[0].prec == image->comps[1].prec
1287                 && image->comps[1].prec == image->comps[2].prec
1288                 && S2 !='g' && S2 !='G') {
1289
1290                 fdest = fopen(outfile, "wb");
1291                 if (!fdest) {
1292                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1293                         return 1;
1294                 }
1295
1296                 w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
1297                 wr = image->comps[0].w;
1298
1299                 h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
1300                 hr = image->comps[0].h;
1301
1302                 max = image->comps[0].prec > 8 ? 255 : (1 << image->comps[0].prec) - 1;
1303
1304                 image->comps[0].x0 = int_ceildivpow2(image->comps[0].x0 - int_ceildiv(image->x0, image->comps[0].dx), image->comps[0].factor);
1305                 image->comps[0].y0 = int_ceildivpow2(image->comps[0].y0 -       int_ceildiv(image->y0, image->comps[0].dy), image->comps[0].factor);
1306
1307                 fprintf(fdest, "P6\n%d %d\n%d\n", wr, hr, max);
1308
1309                 if (image->comps[0].prec > 8) {
1310                         adjustR = image->comps[0].prec - 8;
1311                         printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
1312                 }
1313                 else
1314                         adjustR = 0;
1315                 if (image->comps[1].prec > 8) {
1316                         adjustG = image->comps[1].prec - 8;
1317                         printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
1318                 }
1319                 else
1320                         adjustG = 0;
1321                 if (image->comps[2].prec > 8) {
1322                         adjustB = image->comps[2].prec - 8;
1323                         printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
1324                 }
1325                 else
1326                         adjustB = 0;
1327
1328
1329                 for (i = 0; i < wr * hr; i++) {
1330                         int r, g, b;
1331                         unsigned char rc,gc,bc;
1332                         r = image->comps[0].data[i];
1333                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
1334                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
1335
1336                         g = image->comps[1].data[i];
1337                         g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
1338                         gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
1339
1340                         b = image->comps[2].data[i];
1341                         b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
1342                         bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
1343
1344                         fprintf(fdest, "%c%c%c", rc, gc, bc);
1345                 }
1346                 fclose(fdest);
1347
1348         } else {
1349                 int ncomp=(S2=='g' || S2=='G')?1:image->numcomps;
1350                 if (image->numcomps > ncomp) {
1351                         fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
1352                         fprintf(stderr,"           is written to the file\n");
1353                 }
1354                 for (compno = 0; compno < ncomp; compno++) {
1355                         char name[256];
1356                         if (ncomp > 1) {
1357                                 sprintf(name, "%d.%s", compno, outfile);
1358                         } else {
1359                                 sprintf(name, "%s", outfile);
1360                         }
1361
1362                         fdest = fopen(name, "wb");
1363                         if (!fdest) {
1364                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
1365                                 return 1;
1366                         }
1367
1368                         w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx);
1369                         wr = image->comps[compno].w;
1370
1371                         h = int_ceildiv(image->y1 - image->y0, image->comps[compno].dy);
1372                         hr = image->comps[compno].h;
1373
1374                         max = image->comps[compno].prec > 8 ? 255 : (1 << image->comps[compno].prec) - 1;
1375
1376                         image->comps[compno].x0 = int_ceildivpow2(image->comps[compno].x0 - int_ceildiv(image->x0, image->comps[compno].dx), image->comps[compno].factor);
1377                         image->comps[compno].y0 = int_ceildivpow2(image->comps[compno].y0 - int_ceildiv(image->y0, image->comps[compno].dy), image->comps[compno].factor);
1378
1379                         fprintf(fdest, "P5\n%d %d\n%d\n", wr, hr, max);
1380
1381                         if (image->comps[compno].prec > 8) {
1382                                 adjustX = image->comps[0].prec - 8;
1383                                 printf("PNM CONVERSION: Truncating component %d from %d bits to 8 bits\n",compno, image->comps[compno].prec);
1384                         }
1385                         else
1386                                 adjustX = 0;
1387
1388                         for (i = 0; i < wr * hr; i++) {
1389                                 int l;
1390                                 unsigned char lc;
1391                                 l = image->comps[compno].data[i];
1392                                 l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
1393                                 lc = (unsigned char) ((l >> adjustX)+((l >> (adjustX-1))%2));
1394                                 fprintf(fdest, "%c", lc);
1395                         }
1396                         fclose(fdest);
1397                 }
1398         }
1399
1400         return 0;
1401 }
1402
1403 /* -->> -->> -->> -->>
1404
1405         TIFF IMAGE FORMAT
1406
1407  <<-- <<-- <<-- <<-- */
1408
1409 typedef struct tiff_infoheader{
1410         DWORD tiWidth;  // Width of Image in pixel
1411         DWORD tiHeight; // Height of Image in pixel
1412         DWORD tiPhoto;  // Photometric
1413         WORD  tiBps;    // Bits per sample
1414         WORD  tiSf;             // Sample Format
1415         WORD  tiSpp;    // Sample per pixel 1-bilevel,gray scale , 2- RGB
1416         WORD  tiPC;     // Planar config (1-Interleaved, 2-Planarcomp)
1417 }tiff_infoheader_t;
1418
1419 int imagetotif(opj_image_t * image, const char *outfile) {
1420         int width, height, imgsize;
1421         int bps,index,adjust = 0;
1422         int last_i=0;
1423         TIFF *tif;
1424         tdata_t buf;
1425         tstrip_t strip;
1426         tsize_t strip_size;
1427
1428         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
1429                 && image->comps[1].dx == image->comps[2].dx
1430                 && image->comps[0].dy == image->comps[1].dy
1431                 && image->comps[1].dy == image->comps[2].dy
1432                 && image->comps[0].prec == image->comps[1].prec
1433                 && image->comps[1].prec == image->comps[2].prec) {
1434
1435                         /* -->> -->> -->>
1436                         RGB color
1437                         <<-- <<-- <<-- */
1438
1439                         tif = TIFFOpen(outfile, "wb");
1440                         if (!tif) {
1441                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1442                                 return 1;
1443                         }
1444
1445                         width   = image->comps[0].w;
1446                         height  = image->comps[0].h;
1447                         imgsize = width * height ;
1448                         bps             = image->comps[0].prec;
1449                         /* Set tags */
1450                         TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
1451                         TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
1452                         TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
1453                         TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
1454                         TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
1455                         TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
1456                         TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
1457                         TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
1458
1459                         /* Get a buffer for the data */
1460                         strip_size=TIFFStripSize(tif);
1461                         buf = _TIFFmalloc(strip_size);
1462                         index=0;
1463                         adjust = image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0;
1464                         for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1465                                 unsigned char *dat8;
1466                                 int i, ssize;
1467                                 ssize = TIFFStripSize(tif);
1468                                 dat8 = (unsigned char*)buf;
1469                                 if (image->comps[0].prec == 8){
1470                                         for (i=0; i<ssize-2; i+=3) {    // 8 bits per pixel
1471                                                 int r = 0,g = 0,b = 0;
1472                                                 if(index < imgsize){
1473                                                         r = image->comps[0].data[index];
1474                                                         g = image->comps[1].data[index];
1475                                                         b = image->comps[2].data[index];
1476                                                         if (image->comps[0].sgnd){
1477                                                                 r += adjust;
1478                                                                 g += adjust;
1479                                                                 b += adjust;
1480                                                         }
1481                                                         dat8[i+0] = r ; // R
1482                                                         dat8[i+1] = g ; // G
1483                                                         dat8[i+2] = b ; // B
1484                                                         index++;
1485                                                         last_i = i+3;
1486                                                 }else
1487                                                         break;
1488                                         }
1489                                         if(last_i < ssize){
1490                                                 for (i=last_i; i<ssize; i+=3) { // 8 bits per pixel
1491                                                         int r = 0,g = 0,b = 0;
1492                                                         if(index < imgsize){
1493                                                                 r = image->comps[0].data[index];
1494                                                                 g = image->comps[1].data[index];
1495                                                                 b = image->comps[2].data[index];
1496                                                                 if (image->comps[0].sgnd){
1497                                                                         r += adjust;
1498                                                                         g += adjust;
1499                                                                         b += adjust;
1500                                                                 }
1501                                                                 dat8[i+0] = r ; // R
1502                                                                 if(i+1 <ssize) dat8[i+1] = g ;  else break;// G
1503                                                                 if(i+2 <ssize) dat8[i+2] = b ;  else break;// B
1504                                                                 index++;
1505                                                         }else
1506                                                                 break;
1507                                                 }
1508                                         }
1509                                 }else if (image->comps[0].prec == 12){
1510                                         for (i=0; i<ssize-8; i+=9) {    // 12 bits per pixel
1511                                                 int r = 0,g = 0,b = 0;
1512                                                 int r1 = 0,g1 = 0,b1 = 0;
1513                                                 if((index < imgsize)&(index+1 < imgsize)){
1514                                                         r  = image->comps[0].data[index];
1515                                                         g  = image->comps[1].data[index];
1516                                                         b  = image->comps[2].data[index];
1517                                                         r1 = image->comps[0].data[index+1];
1518                                                         g1 = image->comps[1].data[index+1];
1519                                                         b1 = image->comps[2].data[index+1];
1520                                                         if (image->comps[0].sgnd){
1521                                                                 r  += adjust;
1522                                                                 g  += adjust;
1523                                                                 b  += adjust;
1524                                                                 r1 += adjust;
1525                                                                 g1 += adjust;
1526                                                                 b1 += adjust;
1527                                                         }
1528                                                         dat8[i+0] = (r >> 4);
1529                                                         dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f);
1530                                                         dat8[i+2] = g ;
1531                                                         dat8[i+3] = (b >> 4);
1532                                                         dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
1533                                                         dat8[i+5] = r1;
1534                                                         dat8[i+6] = (g1 >> 4);
1535                                                         dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);
1536                                                         dat8[i+8] = b1;
1537                                                         index+=2;
1538                                                         last_i = i+9;
1539                                                 }else
1540                                                         break;
1541                                         }
1542                                         if(last_i < ssize){
1543                                                 for (i= last_i; i<ssize; i+=9) {        // 12 bits per pixel
1544                                                         int r = 0,g = 0,b = 0;
1545                                                         int r1 = 0,g1 = 0,b1 = 0;
1546                                                         if((index < imgsize)&(index+1 < imgsize)){
1547                                                                 r  = image->comps[0].data[index];
1548                                                                 g  = image->comps[1].data[index];
1549                                                                 b  = image->comps[2].data[index];
1550                                                                 r1 = image->comps[0].data[index+1];
1551                                                                 g1 = image->comps[1].data[index+1];
1552                                                                 b1 = image->comps[2].data[index+1];
1553                                                                 if (image->comps[0].sgnd){
1554                                                                         r  += adjust;
1555                                                                         g  += adjust;
1556                                                                         b  += adjust;
1557                                                                         r1 += adjust;
1558                                                                         g1 += adjust;
1559                                                                         b1 += adjust;
1560                                                                 }
1561                                                                 dat8[i+0] = (r >> 4);
1562                                                                 if(i+1 <ssize) dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f); else break;
1563                                                                 if(i+2 <ssize) dat8[i+2] = g ;                  else break;
1564                                                                 if(i+3 <ssize) dat8[i+3] = (b >> 4);    else break;
1565                                                                 if(i+4 <ssize) dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);else break;
1566                                                                 if(i+5 <ssize) dat8[i+5] = r1;                  else break;
1567                                                                 if(i+6 <ssize) dat8[i+6] = (g1 >> 4);   else break;
1568                                                                 if(i+7 <ssize) dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);else break;
1569                                                                 if(i+8 <ssize) dat8[i+8] = b1;                  else break;
1570                                                                 index+=2;
1571                                                         }else
1572                                                                 break;
1573                                                 }
1574                                         }
1575                                 }else if (image->comps[0].prec == 16){
1576                                         for (i=0 ; i<ssize-5 ; i+=6) {  // 16 bits per pixel
1577                                                 int r = 0,g = 0,b = 0;
1578                                                 if(index < imgsize){
1579                                                         r = image->comps[0].data[index];
1580                                                         g = image->comps[1].data[index];
1581                                                         b = image->comps[2].data[index];
1582                                                         if (image->comps[0].sgnd){
1583                                                         r += adjust;
1584                                                         g += adjust;
1585                                                         b += adjust;
1586                                                         }
1587                                                         dat8[i+0] =  r;//LSB
1588                                                         dat8[i+1] = (r >> 8);//MSB
1589                                                         dat8[i+2] =  g;
1590                                                         dat8[i+3] = (g >> 8);
1591                                                         dat8[i+4] =  b;
1592                                                         dat8[i+5] = (b >> 8);
1593                                                         index++;
1594                                                         last_i = i+6;
1595                                                 }else
1596                                                         break;
1597                                         }
1598                                         if(last_i < ssize){
1599                                                 for (i=0 ; i<ssize ; i+=6) {    // 16 bits per pixel
1600                                                         int r = 0,g = 0,b = 0;
1601                                                         if(index < imgsize){
1602                                                                 r = image->comps[0].data[index];
1603                                                                 g = image->comps[1].data[index];
1604                                                                 b = image->comps[2].data[index];
1605                                                                 if (image->comps[0].sgnd){
1606                                                                         r += adjust;
1607                                                                         g += adjust;
1608                                                                         b += adjust;
1609                                                                 }
1610                                                                 dat8[i+0] =  r;//LSB
1611                                                                 if(i+1 <ssize) dat8[i+1] = (r >> 8);else break;//MSB
1612                                                                 if(i+2 <ssize) dat8[i+2] =  g;          else break;
1613                                                                 if(i+3 <ssize) dat8[i+3] = (g >> 8);else break;
1614                                                                 if(i+4 <ssize) dat8[i+4] =  b;          else break;
1615                                                                 if(i+5 <ssize) dat8[i+5] = (b >> 8);else break;
1616                                                                 index++;
1617                                                         }else
1618                                                                 break;
1619                                                 }
1620                                         }
1621                                 }else{
1622                                         fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
1623                                         fprintf(stderr,"Aborting\n");
1624                                         return 1;
1625                                 }
1626                                 TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
1627                         }
1628                         _TIFFfree(buf);
1629                         TIFFClose(tif);
1630                 }else if (image->numcomps == 1){
1631                         /* -->> -->> -->>
1632                         Black and White
1633                         <<-- <<-- <<-- */
1634
1635                         tif = TIFFOpen(outfile, "wb");
1636                         if (!tif) {
1637                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1638                                 return 1;
1639                         }
1640
1641                         width   = image->comps[0].w;
1642                         height  = image->comps[0].h;
1643                         imgsize = width * height;
1644                         bps             = image->comps[0].prec;
1645
1646                         /* Set tags */
1647                         TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
1648                         TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
1649                         TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
1650                         TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
1651                         TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
1652                         TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
1653                         TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
1654                         TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
1655
1656                         /* Get a buffer for the data */
1657                         strip_size = TIFFStripSize(tif);
1658                         buf = _TIFFmalloc(strip_size);
1659                         index = 0;
1660                         for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1661                                 unsigned char *dat8;
1662                                 int i;
1663                                 dat8 = (unsigned char*)buf;
1664                                 if (image->comps[0].prec == 8){
1665                                         for (i=0; i<TIFFStripSize(tif); i+=1) { // 8 bits per pixel
1666                                                 if(index < imgsize){
1667                                                         int r = 0;
1668                                                         r = image->comps[0].data[index];
1669                                                         if (image->comps[0].sgnd){
1670                                                                 r  += adjust;
1671                                                         }
1672                                                         dat8[i+0] = r;
1673                                                         index++;
1674                                                 }else
1675                                                         break;
1676                                         }
1677                                 }else if (image->comps[0].prec == 12){
1678                                         for (i = 0; i<TIFFStripSize(tif); i+=3) {       // 12 bits per pixel
1679                                                 if(index < imgsize){
1680                                                         int r = 0, r1 = 0;
1681                                                         r  = image->comps[0].data[index];
1682                                                         r1 = image->comps[0].data[index+1];
1683                                                         if (image->comps[0].sgnd){
1684                                                                 r  += adjust;
1685                                                                 r1 += adjust;
1686                                                         }
1687                                                         dat8[i+0] = (r >> 4);
1688                                                         dat8[i+1] = ((r & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
1689                                                         dat8[i+2] = r1 ;
1690                                                         index+=2;
1691                                                 }else
1692                                                         break;
1693                                         }
1694                                 }else if (image->comps[0].prec == 16){
1695                                         for (i=0; i<TIFFStripSize(tif); i+=2) { // 16 bits per pixel
1696                                                 if(index < imgsize){
1697                                                         int r = 0;
1698                                                         r = image->comps[0].data[index];
1699                                                         if (image->comps[0].sgnd){
1700                                                                 r  += adjust;
1701                                                         }
1702                                                         dat8[i+0] = r;
1703                                                         dat8[i+1] = r >> 8;
1704                                                         index++;
1705                                                 }else
1706                                                         break;
1707                                         }
1708                                 }else{
1709                                         fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
1710                                         fprintf(stderr,"Aborting\n");
1711                                         return 1;
1712                                 }
1713                                 TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
1714                         }
1715                         _TIFFfree(buf);
1716                         TIFFClose(tif);
1717                 }else{
1718                         fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
1719                         fprintf(stderr,"Aborting\n");
1720                         return 1;
1721                 }
1722                 return 0;
1723 }
1724
1725 opj_image_t* tiftoimage(const char *filename, opj_cparameters_t *parameters)
1726 {
1727         int subsampling_dx = parameters->subsampling_dx;
1728         int subsampling_dy = parameters->subsampling_dy;
1729         TIFF *tif;
1730         tiff_infoheader_t Info;
1731         tdata_t buf;
1732         tstrip_t strip;
1733         tsize_t strip_size;
1734         int j, numcomps, w, h,index;
1735         OPJ_COLOR_SPACE color_space;
1736         opj_image_cmptparm_t cmptparm[3];
1737         opj_image_t * image = NULL;
1738         int imgsize = 0;
1739
1740         tif = TIFFOpen(filename, "r");
1741
1742         if (!tif) {
1743                 fprintf(stderr, "Failed to open %s for reading\n", filename);
1744                 return 0;
1745         }
1746
1747         TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &Info.tiWidth);
1748         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &Info.tiHeight);
1749         TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &Info.tiBps);
1750         TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &Info.tiSf);
1751         TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &Info.tiSpp);
1752         Info.tiPhoto = 0;
1753         TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &Info.tiPhoto);
1754         TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &Info.tiPC);
1755         w= Info.tiWidth;
1756         h= Info.tiHeight;
1757
1758         if (Info.tiPhoto == 2) {
1759                 /* -->> -->> -->>
1760                 RGB color
1761                 <<-- <<-- <<-- */
1762
1763                 numcomps = 3;
1764                 color_space = CLRSPC_SRGB;
1765                 /* initialize image components*/
1766                 memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
1767                 for(j = 0; j < numcomps; j++) {
1768                         if (parameters->cp_cinema) {
1769                                 cmptparm[j].prec = 12;
1770                                 cmptparm[j].bpp = 12;
1771                         }else{
1772                                 cmptparm[j].prec = Info.tiBps;
1773                                 cmptparm[j].bpp = Info.tiBps;
1774                         }
1775                         cmptparm[j].sgnd = 0;
1776                         cmptparm[j].dx = subsampling_dx;
1777                         cmptparm[j].dy = subsampling_dy;
1778                         cmptparm[j].w = w;
1779                         cmptparm[j].h = h;
1780                 }
1781                 /* create the image*/
1782                 image = opj_image_create(numcomps, &cmptparm[0], color_space);
1783                 if(!image) {
1784                         TIFFClose(tif);
1785                         return NULL;
1786                 }
1787
1788                 /* set image offset and reference grid */
1789                 image->x0 = parameters->image_offset_x0;
1790                 image->y0 = parameters->image_offset_y0;
1791                 image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
1792                 image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
1793
1794                 buf = _TIFFmalloc(TIFFStripSize(tif));
1795                 strip_size=0;
1796                 strip_size=TIFFStripSize(tif);
1797                 index = 0;
1798                 imgsize = image->comps[0].w * image->comps[0].h ;
1799                 /* Read the Image components*/
1800                 for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1801                         unsigned char *dat8;
1802                         int i, ssize;
1803                         ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
1804                         dat8 = (unsigned char*)buf;
1805
1806                         if (Info.tiBps==12){
1807                                 for (i=0; i<ssize; i+=9) {      /*12 bits per pixel*/
1808                                         if((index < imgsize)&(index+1 < imgsize)){
1809                                                 image->comps[0].data[index]   = ( dat8[i+0]<<4 )                |(dat8[i+1]>>4);
1810                                                 image->comps[1].data[index]   = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
1811                                                 image->comps[2].data[index]   = ( dat8[i+3]<<4)                 |(dat8[i+4]>>4);
1812                                                 image->comps[0].data[index+1] = ((dat8[i+4]& 0x0f)<< 8) | dat8[i+5];
1813                                                 image->comps[1].data[index+1] = ( dat8[i+6] <<4)                |(dat8[i+7]>>4);
1814                                                 image->comps[2].data[index+1] = ((dat8[i+7]& 0x0f)<< 8) | dat8[i+8];
1815                                                 index+=2;
1816                                         }else
1817                                                 break;
1818                                 }
1819                         }
1820                         else if( Info.tiBps==16){
1821                                 for (i=0; i<ssize; i+=6) {      /* 16 bits per pixel */
1822                                         if(index < imgsize){
1823                                                 image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0]; // R
1824                                                 image->comps[1].data[index] = ( dat8[i+3] << 8 ) | dat8[i+2]; // G
1825                                                 image->comps[2].data[index] = ( dat8[i+5] << 8 ) | dat8[i+4]; // B
1826                                                 if(parameters->cp_cinema){/* Rounding to 12 bits*/
1827                                                         image->comps[0].data[index] = (image->comps[0].data[index] + 0x08) >> 4 ;
1828                                                         image->comps[1].data[index] = (image->comps[1].data[index] + 0x08) >> 4 ;
1829                                                         image->comps[2].data[index] = (image->comps[2].data[index] + 0x08) >> 4 ;
1830                                                 }
1831                                                 index++;
1832                                         }else
1833                                                 break;
1834                                 }
1835                         }
1836                         else if ( Info.tiBps==8){
1837                                 for (i=0; i<ssize; i+=3) {      /* 8 bits per pixel */
1838                                         if(index < imgsize){
1839                                                 image->comps[0].data[index] = dat8[i+0];// R
1840                                                 image->comps[1].data[index] = dat8[i+1];// G
1841                                                 image->comps[2].data[index] = dat8[i+2];// B
1842                                                 if(parameters->cp_cinema){/* Rounding to 12 bits*/
1843                                                         image->comps[0].data[index] = image->comps[0].data[index] << 4 ;
1844                                                         image->comps[1].data[index] = image->comps[1].data[index] << 4 ;
1845                                                         image->comps[2].data[index] = image->comps[2].data[index] << 4 ;
1846                                                 }
1847                                                 index++;
1848                                         }else
1849                                                 break;
1850                                 }
1851                         }
1852                         else{
1853                                 fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
1854                                 fprintf(stderr,"Aborting\n");
1855                                 return NULL;
1856                         }
1857                 }
1858
1859                 _TIFFfree(buf);
1860                 TIFFClose(tif);
1861         }else if(Info.tiPhoto == 1) {
1862                 /* -->> -->> -->>
1863                 Black and White
1864                 <<-- <<-- <<-- */
1865
1866                 numcomps = 1;
1867                 color_space = CLRSPC_GRAY;
1868                 /* initialize image components*/
1869                 memset(&cmptparm[0], 0, sizeof(opj_image_cmptparm_t));
1870                 cmptparm[0].prec = Info.tiBps;
1871                 cmptparm[0].bpp = Info.tiBps;
1872                 cmptparm[0].sgnd = 0;
1873                 cmptparm[0].dx = subsampling_dx;
1874                 cmptparm[0].dy = subsampling_dy;
1875                 cmptparm[0].w = w;
1876                 cmptparm[0].h = h;
1877
1878                 /* create the image*/
1879                 image = opj_image_create(numcomps, &cmptparm[0], color_space);
1880                 if(!image) {
1881                         TIFFClose(tif);
1882                         return NULL;
1883                 }
1884                 /* set image offset and reference grid */
1885                 image->x0 = parameters->image_offset_x0;
1886                 image->y0 = parameters->image_offset_y0;
1887                 image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
1888                 image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
1889
1890                 buf = _TIFFmalloc(TIFFStripSize(tif));
1891                 strip_size = 0;
1892                 strip_size = TIFFStripSize(tif);
1893                 index = 0;
1894                 imgsize = image->comps[0].w * image->comps[0].h ;
1895                 /* Read the Image components*/
1896                 for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1897                         unsigned char *dat8;
1898                         int i, ssize;
1899                         ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
1900                         dat8 = (unsigned char*)buf;
1901
1902                         if (Info.tiBps==12){
1903                                 for (i=0; i<ssize; i+=3) {      /* 12 bits per pixel*/
1904                                         if(index < imgsize){
1905                                                 image->comps[0].data[index]   = ( dat8[i+0]<<4 )                |(dat8[i+1]>>4) ;
1906                                                 image->comps[0].data[index+1] = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
1907                                                 index+=2;
1908                                         }else
1909                                                 break;
1910                                 }
1911                         }
1912                         else if( Info.tiBps==16){
1913                                 for (i=0; i<ssize; i+=2) {      /* 16 bits per pixel */
1914                                         if(index < imgsize){
1915                                                 image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0];
1916                                                 index++;
1917                                         }else
1918                                                 break;
1919                                 }
1920                         }
1921                         else if ( Info.tiBps==8){
1922                                 for (i=0; i<ssize; i+=1) {      /* 8 bits per pixel */
1923                                         if(index < imgsize){
1924                                                 image->comps[0].data[index] = dat8[i+0];
1925                                                 index++;
1926                                         }else
1927                                                 break;
1928                                 }
1929                         }
1930                         else{
1931                                 fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
1932                                 fprintf(stderr,"Aborting\n");
1933                                 return NULL;
1934                         }
1935                 }
1936
1937                 _TIFFfree(buf);
1938                 TIFFClose(tif);
1939         }else{
1940                 fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
1941                 fprintf(stderr,"Aborting\n");
1942                 return NULL;
1943         }
1944         return image;
1945 }
1946
1947 /* -->> -->> -->> -->>
1948
1949         RAW IMAGE FORMAT
1950
1951  <<-- <<-- <<-- <<-- */
1952
1953 opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
1954         int subsampling_dx = parameters->subsampling_dx;
1955         int subsampling_dy = parameters->subsampling_dy;
1956
1957         FILE *f = NULL;
1958         int i, compno, numcomps, w, h;
1959         OPJ_COLOR_SPACE color_space;
1960         opj_image_cmptparm_t *cmptparm;
1961         opj_image_t * image = NULL;
1962         unsigned short ch;
1963
1964         if((! (raw_cp->rawWidth & raw_cp->rawHeight & raw_cp->rawComp & raw_cp->rawBitDepth)) == 0)
1965         {
1966                 fprintf(stderr,"\nError: invalid raw image parameters\n");
1967                 fprintf(stderr,"Please use the Format option -F:\n");
1968                 fprintf(stderr,"-F rawWidth,rawHeight,rawComp,rawBitDepth,s/u (Signed/Unsigned)\n");
1969                 fprintf(stderr,"Example: -i lena.raw -o lena.j2k -F 512,512,3,8,u\n");
1970                 fprintf(stderr,"Aborting\n");
1971                 return NULL;
1972         }
1973
1974         f = fopen(filename, "rb");
1975         if (!f) {
1976                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
1977                 fprintf(stderr,"Aborting\n");
1978                 return NULL;
1979         }
1980         numcomps = raw_cp->rawComp;
1981         color_space = CLRSPC_SRGB;
1982         w = raw_cp->rawWidth;
1983         h = raw_cp->rawHeight;
1984         cmptparm = (opj_image_cmptparm_t*) malloc(numcomps * sizeof(opj_image_cmptparm_t));
1985
1986         /* initialize image components */
1987         memset(&cmptparm[0], 0, numcomps * sizeof(opj_image_cmptparm_t));
1988         for(i = 0; i < numcomps; i++) {
1989                 cmptparm[i].prec = raw_cp->rawBitDepth;
1990                 cmptparm[i].bpp = raw_cp->rawBitDepth;
1991                 cmptparm[i].sgnd = raw_cp->rawSigned;
1992                 cmptparm[i].dx = subsampling_dx;
1993                 cmptparm[i].dy = subsampling_dy;
1994                 cmptparm[i].w = w;
1995                 cmptparm[i].h = h;
1996         }
1997         /* create the image */
1998         image = opj_image_create(numcomps, &cmptparm[0], color_space);
1999         if(!image) {
2000                 fclose(f);
2001                 return NULL;
2002         }
2003         /* set image offset and reference grid */
2004         image->x0 = parameters->image_offset_x0;
2005         image->y0 = parameters->image_offset_y0;
2006         image->x1 = parameters->image_offset_x0 + (w - 1) *     subsampling_dx + 1;
2007         image->y1 = parameters->image_offset_y0 + (h - 1) *     subsampling_dy + 1;
2008
2009         if(raw_cp->rawBitDepth <= 8)
2010         {
2011                 unsigned char value = 0;
2012                 for(compno = 0; compno < numcomps; compno++) {
2013                         for (i = 0; i < w * h; i++) {
2014                                 if (!fread(&value, 1, 1, f)) {
2015                                         fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
2016                                         return NULL;
2017                                 }
2018                                 image->comps[compno].data[i] = raw_cp->rawSigned?(char)value:value;
2019                         }
2020                 }
2021         }
2022         else if(raw_cp->rawBitDepth <= 16)
2023         {
2024                 unsigned short value;
2025                 for(compno = 0; compno < numcomps; compno++) {
2026                         for (i = 0; i < w * h; i++) {
2027                                 unsigned char temp;
2028                                 if (!fread(&temp, 1, 1, f)) {
2029                                         fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
2030                                         return NULL;
2031                                 }
2032                                 value = temp << 8;
2033                                 if (!fread(&temp, 1, 1, f)) {
2034                                         fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
2035                                         return NULL;
2036                                 }
2037                                 value += temp;
2038                                 image->comps[compno].data[i] = raw_cp->rawSigned?(short)value:value;
2039                         }
2040                 }
2041         }
2042         else {
2043                 fprintf(stderr,"OpenJPEG cannot encode raw components with bit depth higher than 16 bits.\n");
2044                 return NULL;
2045         }
2046
2047         if (fread(&ch, 1, 1, f)) {
2048                 fprintf(stderr,"Warning. End of raw file not reached... processing anyway\n");
2049         }
2050         fclose(f);
2051
2052         return image;
2053 }
2054
2055 int imagetoraw(opj_image_t * image, const char *outfile)
2056 {
2057         FILE *rawFile = NULL;
2058         int compno;
2059         int w, h;
2060         int line, row;
2061         int *ptr;
2062
2063         if((image->numcomps * image->x1 * image->y1) == 0)
2064         {
2065                 fprintf(stderr,"\nError: invalid raw image parameters\n");
2066                 return 1;
2067         }
2068
2069         rawFile = fopen(outfile, "wb");
2070         if (!rawFile) {
2071                 fprintf(stderr, "Failed to open %s for writing !!\n", outfile);
2072                 return 1;
2073         }
2074
2075         fprintf(stdout,"Raw image characteristics: %d components\n", image->numcomps);
2076
2077         for(compno = 0; compno < image->numcomps; compno++)
2078         {
2079                 fprintf(stdout,"Component %d characteristics: %dx%dx%d %s\n", compno, image->comps[compno].w,
2080                         image->comps[compno].h, image->comps[compno].prec, image->comps[compno].sgnd==1 ? "signed": "unsigned");
2081
2082                 w = image->comps[compno].w;
2083                 h = image->comps[compno].h;
2084
2085                 if(image->comps[compno].prec <= 8)
2086                 {
2087                         if(image->comps[compno].sgnd == 1)
2088                         {
2089                                 signed char curr;
2090                                 int mask = (1 << image->comps[compno].prec) - 1;
2091                                 ptr = image->comps[compno].data;
2092                                 for (line = 0; line < h; line++) {
2093                                         for(row = 0; row < w; row++)    {
2094                                                 curr = (signed char) (*ptr & mask);
2095                                                 fwrite(&curr, sizeof(signed char), 1, rawFile);
2096                                                 ptr++;
2097                                         }
2098                                 }
2099                         }
2100                         else if(image->comps[compno].sgnd == 0)
2101                         {
2102                                 unsigned char curr;
2103                                 int mask = (1 << image->comps[compno].prec) - 1;
2104                                 ptr = image->comps[compno].data;
2105                                 for (line = 0; line < h; line++) {
2106                                         for(row = 0; row < w; row++)    {
2107                                                 curr = (unsigned char) (*ptr & mask);
2108                                                 fwrite(&curr, sizeof(unsigned char), 1, rawFile);
2109                                                 ptr++;
2110                                         }
2111                                 }
2112                         }
2113                 }
2114                 else if(image->comps[compno].prec <= 16)
2115                 {
2116                         if(image->comps[compno].sgnd == 1)
2117                         {
2118                                 signed short int curr;
2119                                 int mask = (1 << image->comps[compno].prec) - 1;
2120                                 ptr = image->comps[compno].data;
2121                                 for (line = 0; line < h; line++) {
2122                                         for(row = 0; row < w; row++)    {
2123                                                 unsigned char temp;
2124                                                 curr = (signed short int) (*ptr & mask);
2125                                                 temp = (unsigned char) (curr >> 8);
2126                                                 fwrite(&temp, 1, 1, rawFile);
2127                                                 temp = (unsigned char) curr;
2128                                                 fwrite(&temp, 1, 1, rawFile);
2129                                                 ptr++;
2130                                         }
2131                                 }
2132                         }
2133                         else if(image->comps[compno].sgnd == 0)
2134                         {
2135                                 unsigned short int curr;
2136                                 int mask = (1 << image->comps[compno].prec) - 1;
2137                                 ptr = image->comps[compno].data;
2138                                 for (line = 0; line < h; line++) {
2139                                         for(row = 0; row < w; row++)    {
2140                                                 unsigned char temp;
2141                                                 curr = (unsigned short int) (*ptr & mask);
2142                                                 temp = (unsigned char) (curr >> 8);
2143                                                 fwrite(&temp, 1, 1, rawFile);
2144                                                 temp = (unsigned char) curr;
2145                                                 fwrite(&temp, 1, 1, rawFile);
2146                                                 ptr++;
2147                                         }
2148                                 }
2149                         }
2150                 }
2151                 else if (image->comps[compno].prec <= 32)
2152                 {
2153                         fprintf(stderr,"More than 16 bits per component no handled yet\n");
2154                         return 1;
2155                 }
2156                 else
2157                 {
2158                         fprintf(stderr,"Error: invalid precision: %d\n", image->comps[compno].prec);
2159                         return 1;
2160                 }
2161         }
2162         fclose(rawFile);
2163         return 0;
2164 }
2165
2166 opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params)
2167 #ifdef WIN32
2168 {
2169         printf("Error. PNG format is not yet handled under windows\n");
2170         return NULL;
2171 }
2172 #else
2173 {
2174     png_bytep row;
2175     png_structp png;
2176     png_infop info;
2177     double gamma, display_exponent;
2178     int bit_depth, interlace_type, compression_type, filter_type;
2179     int unit, pass, nr_passes;
2180     png_uint_32 resx, resy;
2181     unsigned int i, max, src_w;
2182     png_uint_32 width, height;
2183     int color_type, has_alpha;
2184     unsigned char *png_buf, *s;
2185     FILE *reader;
2186 /* j2k: */
2187     opj_image_t *image;
2188     opj_image_cmptparm_t cmptparm[4];
2189     int sub_dx, sub_dy;
2190     unsigned int nr_comp;
2191     int *r, *g, *b, *a;
2192
2193     if ((reader = fopen(read_idf, "rb")) == NULL) {
2194         fprintf(stderr, "pngtoimage: can not open %s\n", read_idf);
2195         return NULL;
2196     }
2197     nr_passes = 0;
2198     png_buf = NULL;
2199
2200 /* libpng-VERSION/example.c:
2201  * PC : screen_gamma = 2.2;
2202  * Mac: screen_gamma = 1.7 or 1.0;
2203 */
2204     display_exponent = 2.2;
2205
2206     if ((png = png_create_read_struct(PNG_LIBPNG_VER_STRING,
2207                                       NULL, NULL, NULL)) == NULL)
2208         goto fin;
2209     if ((info = png_create_info_struct(png)) == NULL)
2210         goto fin;
2211
2212     if (setjmp(png_jmpbuf(png)))
2213         goto fin;
2214
2215     png_init_io(png, reader);
2216     png_read_info(png, info);
2217
2218     png_get_IHDR(png, info, &width, &height,
2219                  &bit_depth, &color_type, &interlace_type,
2220                  &compression_type, &filter_type);
2221
2222     if (color_type == PNG_COLOR_TYPE_PALETTE)
2223         png_set_expand(png);
2224     else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
2225         png_set_expand(png);
2226
2227     if (png_get_valid(png, info, PNG_INFO_tRNS))
2228         png_set_expand(png);
2229
2230     if (bit_depth == 16)
2231         png_set_strip_16(png);
2232
2233 /* GRAY => RGB; GRAY_ALPHA => RGBA
2234 */
2235     if (color_type == PNG_COLOR_TYPE_GRAY
2236         || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
2237         png_set_gray_to_rgb(png);
2238         color_type =
2239             (color_type == PNG_COLOR_TYPE_GRAY ? PNG_COLOR_TYPE_RGB :
2240              PNG_COLOR_TYPE_RGB_ALPHA);
2241     }
2242     if (!png_get_gAMA(png, info, &gamma))
2243         gamma = 0.45455;
2244
2245     png_set_gamma(png, display_exponent, gamma);
2246
2247     nr_passes = png_set_interlace_handling(png);
2248
2249     png_read_update_info(png, info);
2250
2251     png_get_pHYs(png, info, &resx, &resy, &unit);
2252
2253     color_type = png_get_color_type(png, info);
2254
2255     has_alpha = (color_type == PNG_COLOR_TYPE_RGB_ALPHA);
2256
2257     if (has_alpha)
2258         nr_comp = 4;
2259     else
2260         nr_comp = 3;
2261
2262     src_w = width * nr_comp;
2263     png_buf = (unsigned char *) malloc(src_w * height);
2264
2265     if (nr_passes == 0)
2266         nr_passes = 1;
2267
2268     for (pass = 0; pass < nr_passes; pass++) {
2269         s = png_buf;
2270
2271         for (i = 0; i < height; i++) {
2272 /* libpng.3:
2273  * If you want the "sparkle" effect, just call png_read_rows() as
2274  * normal, with the third parameter NULL.
2275 */
2276             png_read_rows(png, &s, NULL, 1);
2277
2278             s += src_w;
2279         }
2280     }
2281     memset(&cmptparm, 0, 4 * sizeof(opj_image_cmptparm_t));
2282
2283     sub_dx = params->subsampling_dx;
2284     sub_dy = params->subsampling_dy;
2285
2286     for (i = 0; i < nr_comp; ++i) {
2287         cmptparm[i].prec = 8;
2288         cmptparm[i].bpp = 8;
2289         cmptparm[i].sgnd = 0;
2290         cmptparm[i].dx = sub_dx;
2291         cmptparm[i].dy = sub_dy;
2292         cmptparm[i].w = width;
2293         cmptparm[i].h = height;
2294     }
2295
2296     image = opj_image_create(nr_comp, &cmptparm[0], CLRSPC_SRGB);
2297
2298     if (image == NULL)
2299         goto fin;
2300
2301     image->x0 = params->image_offset_x0;
2302     image->y0 = params->image_offset_y0;
2303     image->x1 =
2304         params->image_offset_x0 + (width - 1) * sub_dx + 1 + image->x0;
2305     image->y1 =
2306         params->image_offset_y0 + (height - 1) * sub_dy + 1 + image->y0;
2307
2308     r = image->comps[0].data;
2309     g = image->comps[1].data;
2310     b = image->comps[2].data;
2311     a = image->comps[3].data;
2312     s = png_buf;
2313
2314     max = width * height;
2315
2316     for (i = 0; i < max; ++i) {
2317         *r++ = *s++;
2318         *g++ = *s++;
2319         *b++ = *s++;
2320
2321         if (has_alpha)
2322             *a++ = *s++;
2323     }
2324
2325   fin:
2326     if (png)
2327         png_destroy_read_struct(&png, &info, NULL);
2328     if (png_buf)
2329         free(png_buf);
2330
2331     fclose(reader);
2332
2333     return image;
2334
2335 }                               /* pngtoimage() */
2336 #endif
2337
2338 int imagetopng(opj_image_t * image, const char *write_idf)
2339 #ifdef WIN32
2340 {
2341         printf("Error. PNG format is not yet handled under windows\n");
2342         return -1;
2343 }
2344 #else
2345 {
2346     FILE *writer;
2347     png_structp png_ptr;
2348     png_infop info_ptr;
2349     int *rs, *gs, *bs, *as;
2350     unsigned char *row_buf, *d;
2351     int fails, mono, graya, rgb, rgba;
2352     int width, height, nr_colors, color_type;
2353     int bit_depth, adjust, x, y;
2354     png_color_8 sig_bit;
2355
2356     writer = fopen(write_idf, "wb");
2357
2358     if (writer == NULL)
2359         return 1;
2360
2361     info_ptr = NULL;
2362     fails = 1;
2363
2364 /* Create and initialize the png_struct with the desired error handler
2365  * functions.  If you want to use the default stderr and longjump method,
2366  * you can supply NULL for the last three parameters.  We also check that
2367  * the library version is compatible with the one used at compile time,
2368  * in case we are using dynamically linked libraries.  REQUIRED.
2369 */
2370     png_ptr =
2371         png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
2372 /*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */
2373
2374     if (png_ptr == NULL)
2375         goto fin;
2376
2377 /* Allocate/initialize the image information data.  REQUIRED
2378 */
2379     info_ptr = png_create_info_struct(png_ptr);
2380
2381     if (info_ptr == NULL)
2382         goto fin;
2383
2384 /* Set error handling.  REQUIRED if you are not supplying your own
2385  * error handling functions in the png_create_write_struct() call.
2386 */
2387     if (setjmp(png_jmpbuf(png_ptr)))
2388         goto fin;
2389
2390 /* I/O initialization functions is REQUIRED
2391 */
2392     png_init_io(png_ptr, writer);
2393
2394 /* Set the image information here.  Width and height are up to 2^31,
2395  * bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on
2396  * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
2397  * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
2398  * or PNG_COLOR_TYPE_RGB_ALPHA.  interlace is either PNG_INTERLACE_NONE or
2399  * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
2400  * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE.
2401  * REQUIRED
2402 */
2403     png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
2404
2405     mono = graya = rgb = rgba = adjust = 0;
2406
2407     nr_colors = image->numcomps;
2408     width = image->comps[0].w;
2409     height = image->comps[0].h;
2410     rs = image->comps[0].data;
2411
2412     if (nr_colors == 2) {
2413         graya = 1;
2414         color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
2415         sig_bit.gray = image->comps[0].prec;
2416         bit_depth = image->comps[0].prec;
2417         as = image->comps[1].data;
2418     } else if (nr_colors == 3) {
2419         rgb = 1;
2420         color_type = PNG_COLOR_TYPE_RGB;
2421         sig_bit.red = image->comps[0].prec;
2422         sig_bit.green = image->comps[1].prec;
2423         sig_bit.blue = image->comps[2].prec;
2424         bit_depth = image->comps[0].prec;
2425         gs = image->comps[1].data;
2426         bs = image->comps[2].data;
2427         if (image->comps[0].sgnd)
2428             adjust = 1 << (image->comps[0].prec - 1);
2429     } else if (nr_colors == 4) {
2430         rgb = rgba = 1;
2431         color_type = PNG_COLOR_TYPE_RGB_ALPHA;
2432         sig_bit.red = image->comps[0].prec;
2433         sig_bit.green = image->comps[1].prec;
2434         sig_bit.blue = image->comps[2].prec;
2435         sig_bit.alpha = image->comps[3].prec;
2436         bit_depth = image->comps[0].prec;
2437         gs = image->comps[1].data;
2438         bs = image->comps[2].data;
2439         as = image->comps[3].data;
2440         if (image->comps[0].sgnd)
2441             adjust = 1 << (image->comps[0].prec - 1);
2442     } else {
2443         mono = 1;
2444         color_type = PNG_COLOR_TYPE_GRAY;
2445         sig_bit.gray = image->comps[0].prec;
2446         bit_depth = image->comps[0].prec;
2447     }
2448     png_set_sBIT(png_ptr, info_ptr, &sig_bit);
2449
2450     png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
2451                  color_type,
2452                  PNG_INTERLACE_NONE,
2453                  PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
2454
2455 #ifdef HIDDEN_CODE
2456 /* Optional gamma chunk is strongly suggested if you have any guess
2457  * as to the correct gamma of the image.
2458 */
2459
2460     if (gamma > 0.0) {
2461         png_set_gAMA(png_ptr, info_ptr, gamma);
2462     }
2463 #endif                          /* HIDDEN_CODE */
2464 #ifdef HIDDEN_CODE
2465     if (have_bg) {
2466         png_color_16 background;
2467
2468         background.red = bg_red;
2469         background.green = bg_green;
2470         background.blue = bg_blue;
2471
2472         png_set_bKGD(png_ptr, info_ptr, &background);
2473     }
2474 #endif                          /* HIDDEN_CODE */
2475     png_write_info(png_ptr, info_ptr);
2476
2477     png_set_packing(png_ptr);
2478
2479     row_buf = (unsigned char *) malloc(width * nr_colors);
2480
2481     for (y = 0; y < height; ++y) {
2482         d = row_buf;
2483
2484         for (x = 0; x < width; ++x) {
2485             if (mono) {
2486                 *d++ = (unsigned char) *rs++;
2487             }
2488             if (graya) {
2489                 *d++ = (unsigned char) *rs++;
2490                 *d++ = (unsigned char) *as++;
2491             } else if (rgb) {
2492                 *d++ = (unsigned char) (*rs++ + adjust);
2493                 *d++ = (unsigned char) (*gs++ + adjust);
2494                 *d++ = (unsigned char) (*bs++ + adjust);
2495
2496                 if (rgba)
2497                     *d++ = (unsigned char) (*as++ + adjust);
2498             }
2499         }                       /* for(x) */
2500
2501         png_write_row(png_ptr, row_buf);
2502
2503     }                           /* for(y) */
2504
2505     png_write_end(png_ptr, info_ptr);
2506
2507     fails = 0;
2508
2509   fin:
2510
2511     if (png_ptr) {
2512         png_destroy_write_struct(&png_ptr, &info_ptr);
2513     }
2514     fclose(writer);
2515
2516     return fails;
2517 }
2518 #endif