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 #include "openjpeg.h"
  36 #include "../libs/libtiff/tiffio.h"
  37 #include "convert.h"
  38
  39 /*
  40  * Get logarithm of an integer and round downwards.
  41  *
  42  * log2(a)
  43  */
  44 static int int_floorlog2(int a) {
  45         int l;
  46         for (l = 0; a > 1; l++) {
  47                 a >>= 1;
  48         }
  49         return l;
  50 }
  51
  52 /*
  53  * Divide an integer by a power of 2 and round upwards.
  54  *
  55  * a divided by 2^b
  56  */
  57 static int int_ceildivpow2(int a, int b) {
  58         return (a + (1 << b) - 1) >> b;
  59 }
  60
  61 /*
  62  * Divide an integer and round upwards.
  63  *
  64  * a divided by b
  65  */
  66 static int int_ceildiv(int a, int b) {
  67         return (a + b - 1) / b;
  68 }
  69
  70
  71 /* -->> -->> -->> -->>
  72
  73   TGA IMAGE FORMAT
  74
  75  <<-- <<-- <<-- <<-- */
  76
  77 // TGA header definition.
  78 #pragma pack(push,1) // Pack structure byte aligned
  79 typedef struct tga_header
  80 {
  81     uint8   id_length;              /* Image id field length    */
  82     uint8   colour_map_type;        /* Colour map type          */
  83     uint8   image_type;             /* Image type               */
  84     /*
  85     ** Colour map specification
  86     */
  87     uint16  colour_map_index;       /* First entry index        */
  88     uint16  colour_map_length;      /* Colour map length        */
  89     uint8   colour_map_entry_size;  /* Colour map entry size    */
  90     /*
  91     ** Image specification
  92     */
  93     uint16  x_origin;               /* x origin of image        */
  94     uint16  y_origin;               /* u origin of image        */
  95     uint16  image_width;            /* Image width              */
  96     uint16  image_height;           /* Image height             */
  97     uint8   pixel_depth;            /* Pixel depth              */
  98     uint8   image_desc;             /* Image descriptor         */
  99 } tga_header;
 100 #pragma pack(pop) // Return to normal structure packing alignment.
 101
 102 int tga_readheader(FILE *fp, int *bits_per_pixel, int *width, int *height, int *flip_image)
 103 {
 104         int palette_size;
 105         tga_header tga ;
 106
 107         if (!bits_per_pixel || !width || !height || !flip_image)
 108                 return 0;
 109
 110         // Read TGA header
 111         fread((uint8*)&tga, sizeof(tga_header), 1, fp);
 112
 113         *bits_per_pixel = tga.pixel_depth;
 114
 115         *width  = tga.image_width;
 116         *height = tga.image_height ;
 117
 118         // Ignore tga identifier, if present ...
 119         if (tga.id_length)
 120         {
 121                 uint8 *id = (uint8 *) malloc(tga.id_length);
 122                 fread(id, tga.id_length, 1, fp);
 123                 free(id);
 124         }
 125
 126         // Test for compressed formats ... not yet supported ...
 127         // Note :-  9 - RLE encoded palettized.
 128         //                 10 - RLE encoded RGB.
 129         if (tga.image_type > 8)
 130         {
 131                 fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n");
 132                 return 0 ;
 133         }
 134
 135         *flip_image = !(tga.image_desc & 32);
 136
 137         // Palettized formats are not yet supported, skip over the palette, if present ...
 138         palette_size = tga.colour_map_length * (tga.colour_map_entry_size/8);
 139
 140         if (palette_size>0)
 141         {
 142                 fprintf(stderr, "File contains a palette - not yet supported.");
 143                 fseek(fp, palette_size, SEEK_CUR);
 144         }
 145         return 1;
 146 }
 147
 148 int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height, bool flip_image)
 149 {
 150         tga_header tga;
 151
 152         if (!bits_per_pixel || !width || !height)
 153                 return 0;
 154
 155         memset(&tga, 0, sizeof(tga_header));
 156
 157         tga.pixel_depth = bits_per_pixel;
 158         tga.image_width  = width;
 159         tga.image_height = height;
 160         tga.image_type = 2; // Uncompressed.
 161         tga.image_desc = 8; // 8 bits per component.
 162
 163         if (flip_image)
 164                 tga.image_desc |= 32;
 165
 166         // Write TGA header
 167         fwrite((uint8*)&tga, sizeof(tga_header), 1, fp);
 168
 169         return 1;
 170 }
 171
 172 opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters) {
 173         FILE *f;
 174         opj_image_t *image;
 175         uint32 image_width, image_height, pixel_bit_depth;
 176         uint32 x, y;
 177         int flip_image=0;
 178         opj_image_cmptparm_t cmptparm[4];       /* maximum 4 components */
 179         int numcomps;
 180         OPJ_COLOR_SPACE color_space;
 181         bool mono ;
 182         bool save_alpha;
 183         int subsampling_dx, subsampling_dy;
 184         int i;
 185
 186         f = fopen(filename, "rb");
 187         if (!f) {
 188                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
 189                 return 0;
 190         }
 191
 192         if (!tga_readheader(f, &pixel_bit_depth, &image_width, &image_height, &flip_image))
 193                 return NULL;
 194
 195         // We currently only support 24 & 32 bit tga's ...
 196         if (!((pixel_bit_depth == 24) || (pixel_bit_depth == 32)))
 197                 return NULL;
 198
 199         /* initialize image components */
 200         memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t));
 201
 202         mono = (pixel_bit_depth == 8) || (pixel_bit_depth == 16);  // Mono with & without alpha.
 203         save_alpha = (pixel_bit_depth == 16) || (pixel_bit_depth == 32); // Mono with alpha, or RGB with alpha
 204
 205         if (mono) {
 206                 color_space = CLRSPC_GRAY;
 207                 numcomps = save_alpha ? 2 : 1;
 208         }
 209         else {
 210                 numcomps = save_alpha ? 4 : 3;
 211                 color_space = CLRSPC_SRGB;
 212         }
 213
 214         subsampling_dx = parameters->subsampling_dx;
 215         subsampling_dy = parameters->subsampling_dy;
 216
 217         for (i = 0; i < numcomps; i++) {
 218                 cmptparm[i].prec = 8;
 219                 cmptparm[i].bpp = 8;
 220                 cmptparm[i].sgnd = 0;
 221                 cmptparm[i].dx = subsampling_dx;
 222                 cmptparm[i].dy = subsampling_dy;
 223                 cmptparm[i].w = image_width;
 224                 cmptparm[i].h = image_height;
 225         }
 226
 227         /* create the image */
 228         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 229
 230         if (!image)
 231                 return NULL;
 232
 233         /* set image offset and reference grid */
 234         image->x0 = parameters->image_offset_x0;
 235         image->y0 = parameters->image_offset_y0;
 236         image->x1 =     !image->x0 ? (image_width - 1) * subsampling_dx + 1 : image->x0 + (image_width - 1) * subsampling_dx + 1;
 237         image->y1 =     !image->y0 ? (image_height - 1) * subsampling_dy + 1 : image->y0 + (image_height - 1) * subsampling_dy + 1;
 238
 239         /* set image data */
 240         for (y=0; y < image_height; y++)
 241         {
 242                 int index;
 243
 244                 if (flip_image)
 245                         index = (image_height-y-1)*image_width;
 246                 else
 247                         index = y*image_width;
 248
 249                 if (numcomps==3)
 250                 {
 251                         for (x=0;x<image_width;x++)
 252                         {
 253                                 uint8 r,g,b;
 254                                 fread(&b, 1, 1, f);
 255                                 fread(&g, 1, 1, f);
 256                                 fread(&r, 1, 1, f);
 257
 258                                 image->comps[0].data[index]=r;
 259                                 image->comps[1].data[index]=g;
 260                                 image->comps[2].data[index]=b;
 261                                 index++;
 262                         }
 263                 }
 264                 else if (numcomps==4)
 265                 {
 266                         for (x=0;x<image_width;x++)
 267                         {
 268                                 uint8 r,g,b,a;
 269                                 fread(&b, 1, 1, f);
 270                                 fread(&g, 1, 1, f);
 271                                 fread(&r, 1, 1, f);
 272                                 fread(&a, 1, 1, f);
 273
 274                                 image->comps[0].data[index]=r;
 275                                 image->comps[1].data[index]=g;
 276                                 image->comps[2].data[index]=b;
 277                                 image->comps[3].data[index]=a;
 278                                 index++;
 279                         }
 280                 }
 281                 else {
 282                         fprintf(stderr, "Currently unsupported bit depth : %s\n", filename);
 283                 }
 284         }
 285         return image;
 286 }
 287
 288 int imagetotga(opj_image_t * image, const char *outfile) {
 289         int width, height, bpp, x, y;
 290         bool write_alpha;
 291         int i;
 292         uint32 alpha_channel;
 293         float r,g,b,a;
 294         uint8 value;
 295         float scale;
 296         FILE *fdest;
 297
 298         fdest = fopen(outfile, "wb");
 299         if (!fdest) {
 300                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
 301                 return 1;
 302         }
 303
 304         for (i = 0; i < image->numcomps-1; i++) {
 305                 if ((image->comps[0].dx != image->comps[i+1].dx)
 306                         ||(image->comps[0].dy != image->comps[i+1].dy)
 307                         ||(image->comps[0].prec != image->comps[i+1].prec))     {
 308       fprintf(stderr, "Unable to create a tga file with such J2K image charateristics.");
 309       return 1;
 310    }
 311         }
 312
 313         width  = int_ceildiv(image->x1-image->x0, image->comps[0].dx);
 314         height = int_ceildiv(image->y1-image->y0, image->comps[0].dy);
 315
 316         // Mono with alpha, or RGB with alpha.
 317         write_alpha = (image->numcomps==2) || (image->numcomps==4);
 318
 319         // Write TGA header
 320         bpp = write_alpha ? 32 : 24;
 321         if (!tga_writeheader(fdest, bpp, width, height, true))
 322                 return 1;
 323
 324         alpha_channel = image->numcomps-1;
 325
 326         scale = 255.0f / (float)((1<<image->comps[0].prec)-1);
 327
 328         for (y=0; y < height; y++) {
 329                 uint32 index=y*width;
 330
 331                 for (x=0; x < width; x++, index++)      {
 332                         r = (float)(image->comps[0].data[index]);
 333
 334                         if (image->numcomps>2) {
 335                                 g = (float)(image->comps[1].data[index]);
 336                                 b = (float)(image->comps[2].data[index]);
 337                         }
 338                         else  {// Greyscale ...
 339                                 g = r;
 340                                 b = r;
 341                         }
 342
 343                         // TGA format writes BGR ...
 344                         value = (uint8)(b*scale);
 345                         fwrite(&value,1,1,fdest);
 346
 347                         value = (uint8)(g*scale);
 348                         fwrite(&value,1,1,fdest);
 349
 350                         value = (uint8)(r*scale);
 351                         fwrite(&value,1,1,fdest);
 352
 353                         if (write_alpha) {
 354                                 a = (float)(image->comps[alpha_channel].data[index]);
 355                                 value = (uint8)(a*scale);
 356                                 fwrite(&value,1,1,fdest);
 357                         }
 358                 }
 359         }
 360
 361         return 0;
 362 }
 363
 364 /* -->> -->> -->> -->>
 365
 366   BMP IMAGE FORMAT
 367
 368  <<-- <<-- <<-- <<-- */
 369
 370 /* WORD defines a two byte word */
 371 typedef unsigned short int WORD;
 372
 373 /* DWORD defines a four byte word */
 374 typedef unsigned long int DWORD;
 375
 376 typedef struct {
 377   WORD bfType;                  /* 'BM' for Bitmap (19776) */
 378   DWORD bfSize;                 /* Size of the file        */
 379   WORD bfReserved1;             /* Reserved : 0            */
 380   WORD bfReserved2;             /* Reserved : 0            */
 381   DWORD bfOffBits;              /* Offset                  */
 382 } BITMAPFILEHEADER_t;
 383
 384 typedef struct {
 385   DWORD biSize;                 /* Size of the structure in bytes */
 386   DWORD biWidth;                /* Width of the image in pixels */
 387   DWORD biHeight;               /* Heigth of the image in pixels */
 388   WORD biPlanes;                /* 1 */
 389   WORD biBitCount;              /* Number of color bits by pixels */
 390   DWORD biCompression;          /* Type of encoding 0: none 1: RLE8 2: RLE4 */
 391   DWORD biSizeImage;            /* Size of the image in bytes */
 392   DWORD biXpelsPerMeter;        /* Horizontal (X) resolution in pixels/meter */
 393   DWORD biYpelsPerMeter;        /* Vertical (Y) resolution in pixels/meter */
 394   DWORD biClrUsed;              /* Number of color used in the image (0: ALL) */
 395   DWORD biClrImportant;         /* Number of important color (0: ALL) */
 396 } BITMAPINFOHEADER_t;
 397
 398 opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters) {
 399         int subsampling_dx = parameters->subsampling_dx;
 400         int subsampling_dy = parameters->subsampling_dy;
 401
 402         int i, numcomps, w, h;
 403         OPJ_COLOR_SPACE color_space;
 404         opj_image_cmptparm_t cmptparm[3];       /* maximum of 3 components */
 405         opj_image_t * image = NULL;
 406
 407         FILE *IN;
 408         BITMAPFILEHEADER_t File_h;
 409         BITMAPINFOHEADER_t Info_h;
 410         unsigned char *RGB;
 411         unsigned char *table_R, *table_G, *table_B;
 412         unsigned int j, PAD = 0;
 413
 414         int x, y, index;
 415         int gray_scale = 1, not_end_file = 1;
 416
 417         unsigned int line = 0, col = 0;
 418         unsigned char v, v2;
 419         DWORD W, H;
 420
 421         IN = fopen(filename, "rb");
 422         if (!IN) {
 423                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
 424                 return 0;
 425         }
 426
 427         File_h.bfType = getc(IN);
 428         File_h.bfType = (getc(IN) << 8) + File_h.bfType;
 429
 430         if (File_h.bfType != 19778) {
 431                 fprintf(stderr,"Error, not a BMP file!\n");
 432                 return 0;
 433         } else {
 434                 /* FILE HEADER */
 435                 /* ------------- */
 436                 File_h.bfSize = getc(IN);
 437                 File_h.bfSize = (getc(IN) << 8) + File_h.bfSize;
 438                 File_h.bfSize = (getc(IN) << 16) + File_h.bfSize;
 439                 File_h.bfSize = (getc(IN) << 24) + File_h.bfSize;
 440
 441                 File_h.bfReserved1 = getc(IN);
 442                 File_h.bfReserved1 = (getc(IN) << 8) + File_h.bfReserved1;
 443
 444                 File_h.bfReserved2 = getc(IN);
 445                 File_h.bfReserved2 = (getc(IN) << 8) + File_h.bfReserved2;
 446
 447                 File_h.bfOffBits = getc(IN);
 448                 File_h.bfOffBits = (getc(IN) << 8) + File_h.bfOffBits;
 449                 File_h.bfOffBits = (getc(IN) << 16) + File_h.bfOffBits;
 450                 File_h.bfOffBits = (getc(IN) << 24) + File_h.bfOffBits;
 451
 452                 /* INFO HEADER */
 453                 /* ------------- */
 454
 455                 Info_h.biSize = getc(IN);
 456                 Info_h.biSize = (getc(IN) << 8) + Info_h.biSize;
 457                 Info_h.biSize = (getc(IN) << 16) + Info_h.biSize;
 458                 Info_h.biSize = (getc(IN) << 24) + Info_h.biSize;
 459
 460                 Info_h.biWidth = getc(IN);
 461                 Info_h.biWidth = (getc(IN) << 8) + Info_h.biWidth;
 462                 Info_h.biWidth = (getc(IN) << 16) + Info_h.biWidth;
 463                 Info_h.biWidth = (getc(IN) << 24) + Info_h.biWidth;
 464                 w = Info_h.biWidth;
 465
 466                 Info_h.biHeight = getc(IN);
 467                 Info_h.biHeight = (getc(IN) << 8) + Info_h.biHeight;
 468                 Info_h.biHeight = (getc(IN) << 16) + Info_h.biHeight;
 469                 Info_h.biHeight = (getc(IN) << 24) + Info_h.biHeight;
 470                 h = Info_h.biHeight;
 471
 472                 Info_h.biPlanes = getc(IN);
 473                 Info_h.biPlanes = (getc(IN) << 8) + Info_h.biPlanes;
 474
 475                 Info_h.biBitCount = getc(IN);
 476                 Info_h.biBitCount = (getc(IN) << 8) + Info_h.biBitCount;
 477
 478                 Info_h.biCompression = getc(IN);
 479                 Info_h.biCompression = (getc(IN) << 8) + Info_h.biCompression;
 480                 Info_h.biCompression = (getc(IN) << 16) + Info_h.biCompression;
 481                 Info_h.biCompression = (getc(IN) << 24) + Info_h.biCompression;
 482
 483                 Info_h.biSizeImage = getc(IN);
 484                 Info_h.biSizeImage = (getc(IN) << 8) + Info_h.biSizeImage;
 485                 Info_h.biSizeImage = (getc(IN) << 16) + Info_h.biSizeImage;
 486                 Info_h.biSizeImage = (getc(IN) << 24) + Info_h.biSizeImage;
 487
 488                 Info_h.biXpelsPerMeter = getc(IN);
 489                 Info_h.biXpelsPerMeter = (getc(IN) << 8) + Info_h.biXpelsPerMeter;
 490                 Info_h.biXpelsPerMeter = (getc(IN) << 16) + Info_h.biXpelsPerMeter;
 491                 Info_h.biXpelsPerMeter = (getc(IN) << 24) + Info_h.biXpelsPerMeter;
 492
 493                 Info_h.biYpelsPerMeter = getc(IN);
 494                 Info_h.biYpelsPerMeter = (getc(IN) << 8) + Info_h.biYpelsPerMeter;
 495                 Info_h.biYpelsPerMeter = (getc(IN) << 16) + Info_h.biYpelsPerMeter;
 496                 Info_h.biYpelsPerMeter = (getc(IN) << 24) + Info_h.biYpelsPerMeter;
 497
 498                 Info_h.biClrUsed = getc(IN);
 499                 Info_h.biClrUsed = (getc(IN) << 8) + Info_h.biClrUsed;
 500                 Info_h.biClrUsed = (getc(IN) << 16) + Info_h.biClrUsed;
 501                 Info_h.biClrUsed = (getc(IN) << 24) + Info_h.biClrUsed;
 502
 503                 Info_h.biClrImportant = getc(IN);
 504                 Info_h.biClrImportant = (getc(IN) << 8) + Info_h.biClrImportant;
 505                 Info_h.biClrImportant = (getc(IN) << 16) + Info_h.biClrImportant;
 506                 Info_h.biClrImportant = (getc(IN) << 24) + Info_h.biClrImportant;
 507
 508                 /* Read the data and store them in the OUT file */
 509
 510                 if (Info_h.biBitCount == 24) {
 511                         numcomps = 3;
 512                         color_space = CLRSPC_SRGB;
 513                         /* initialize image components */
 514                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 515                         for(i = 0; i < numcomps; i++) {
 516                                 cmptparm[i].prec = 8;
 517                                 cmptparm[i].bpp = 8;
 518                                 cmptparm[i].sgnd = 0;
 519                                 cmptparm[i].dx = subsampling_dx;
 520                                 cmptparm[i].dy = subsampling_dy;
 521                                 cmptparm[i].w = w;
 522                                 cmptparm[i].h = h;
 523                         }
 524                         /* create the image */
 525                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 526                         if(!image) {
 527                                 fclose(IN);
 528                                 return NULL;
 529                         }
 530
 531                         /* set image offset and reference grid */
 532                         image->x0 = parameters->image_offset_x0;
 533                         image->y0 = parameters->image_offset_y0;
 534                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 535                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 536
 537                         /* set image data */
 538
 539                         /* Place the cursor at the beginning of the image information */
 540                         fseek(IN, 0, SEEK_SET);
 541                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 542
 543                         W = Info_h.biWidth;
 544                         H = Info_h.biHeight;
 545
 546                         /* PAD = 4 - (3 * W) % 4; */
 547                         /* PAD = (PAD == 4) ? 0 : PAD; */
 548                         PAD = (3 * W) % 4 ? 4 - (3 * W) % 4 : 0;
 549
 550                         RGB = (unsigned char *) malloc((3 * W + PAD) * H * sizeof(unsigned char));
 551
 552                         fread(RGB, sizeof(unsigned char), (3 * W + PAD) * H, IN);
 553
 554                         index = 0;
 555
 556                         for(y = 0; y < (int)H; y++) {
 557                                 unsigned char *scanline = RGB + (3 * W + PAD) * (H - 1 - y);
 558                                 for(x = 0; x < (int)W; x++) {
 559                                         unsigned char *pixel = &scanline[3 * x];
 560                                         image->comps[0].data[index] = pixel[2]; /* R */
 561                                         image->comps[1].data[index] = pixel[1]; /* G */
 562                                         image->comps[2].data[index] = pixel[0]; /* B */
 563                                         index++;
 564                                 }
 565                         }
 566
 567                         free(RGB);
 568
 569                 } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) {
 570                         table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));
 571                         table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));
 572                         table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));
 573
 574                         for (j = 0; j < Info_h.biClrUsed; j++) {
 575                                 table_B[j] = getc(IN);
 576                                 table_G[j] = getc(IN);
 577                                 table_R[j] = getc(IN);
 578                                 getc(IN);
 579                                 if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
 580                                         gray_scale = 0;
 581                         }
 582
 583                         /* Place the cursor at the beginning of the image information */
 584                         fseek(IN, 0, SEEK_SET);
 585                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 586
 587                         W = Info_h.biWidth;
 588                         H = Info_h.biHeight;
 589                         if (Info_h.biWidth % 2)
 590                                 W++;
 591
 592                         numcomps = gray_scale ? 1 : 3;
 593                         color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;
 594                         /* initialize image components */
 595                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 596                         for(i = 0; i < numcomps; i++) {
 597                                 cmptparm[i].prec = 8;
 598                                 cmptparm[i].bpp = 8;
 599                                 cmptparm[i].sgnd = 0;
 600                                 cmptparm[i].dx = subsampling_dx;
 601                                 cmptparm[i].dy = subsampling_dy;
 602                                 cmptparm[i].w = w;
 603                                 cmptparm[i].h = h;
 604                         }
 605                         /* create the image */
 606                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 607                         if(!image) {
 608                                 fclose(IN);
 609                                 return NULL;
 610                         }
 611
 612                         /* set image offset and reference grid */
 613                         image->x0 = parameters->image_offset_x0;
 614                         image->y0 = parameters->image_offset_y0;
 615                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 616                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 617
 618                         /* set image data */
 619
 620                         RGB = (unsigned char *) malloc(W * H * sizeof(unsigned char));
 621
 622                         fread(RGB, sizeof(unsigned char), W * H, IN);
 623                         if (gray_scale) {
 624                                 index = 0;
 625                                 for (j = 0; j < W * H; j++) {
 626                                         if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {
 627                                                 image->comps[0].data[index] = table_R[RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)]];
 628                                                 index++;
 629                                         }
 630                                 }
 631
 632                         } else {
 633                                 index = 0;
 634                                 for (j = 0; j < W * H; j++) {
 635                                         if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {
 636                                                 unsigned char pixel_index = RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)];
 637                                                 image->comps[0].data[index] = table_R[pixel_index];
 638                                                 image->comps[1].data[index] = table_G[pixel_index];
 639                                                 image->comps[2].data[index] = table_B[pixel_index];
 640                                                 index++;
 641                                         }
 642                                 }
 643                         }
 644                         free(RGB);
 645       free(table_R);
 646       free(table_G);
 647       free(table_B);
 648                 } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) {
 649                         table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));
 650                         table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));
 651                         table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));
 652
 653                         for (j = 0; j < Info_h.biClrUsed; j++) {
 654                                 table_B[j] = getc(IN);
 655                                 table_G[j] = getc(IN);
 656                                 table_R[j] = getc(IN);
 657                                 getc(IN);
 658                                 if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
 659                                         gray_scale = 0;
 660                         }
 661
 662                         numcomps = gray_scale ? 1 : 3;
 663                         color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;
 664                         /* initialize image components */
 665                         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
 666                         for(i = 0; i < numcomps; i++) {
 667                                 cmptparm[i].prec = 8;
 668                                 cmptparm[i].bpp = 8;
 669                                 cmptparm[i].sgnd = 0;
 670                                 cmptparm[i].dx = subsampling_dx;
 671                                 cmptparm[i].dy = subsampling_dy;
 672                                 cmptparm[i].w = w;
 673                                 cmptparm[i].h = h;
 674                         }
 675                         /* create the image */
 676                         image = opj_image_create(numcomps, &cmptparm[0], color_space);
 677                         if(!image) {
 678                                 fclose(IN);
 679                                 return NULL;
 680                         }
 681
 682                         /* set image offset and reference grid */
 683                         image->x0 = parameters->image_offset_x0;
 684                         image->y0 = parameters->image_offset_y0;
 685                         image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
 686                         image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
 687
 688                         /* set image data */
 689
 690                         /* Place the cursor at the beginning of the image information */
 691                         fseek(IN, 0, SEEK_SET);
 692                         fseek(IN, File_h.bfOffBits, SEEK_SET);
 693
 694                         RGB = (unsigned char *) malloc(Info_h.biWidth * Info_h.biHeight * sizeof(unsigned char));
 695
 696                         while (not_end_file) {
 697                                 v = getc(IN);
 698                                 if (v) {
 699                                         v2 = getc(IN);
 700                                         for (i = 0; i < (int) v; i++) {
 701                                                 RGB[line * Info_h.biWidth + col] = v2;
 702                                                 col++;
 703                                         }
 704                                 } else {
 705                                         v = getc(IN);
 706                                         switch (v) {
 707                                                 case 0:
 708                                                         col = 0;
 709                                                         line++;
 710                                                         break;
 711                                                 case 1:
 712                                                         line++;
 713                                                         not_end_file = 0;
 714                                                         break;
 715                                                 case 2:
 716                                                         fprintf(stderr,"No Delta supported\n");
 717                                                         opj_image_destroy(image);
 718                                                         fclose(IN);
 719                                                         return NULL;
 720                                                 default:
 721                                                         for (i = 0; i < v; i++) {
 722                                                                 v2 = getc(IN);
 723                                                                 RGB[line * Info_h.biWidth + col] = v2;
 724                                                                 col++;
 725                                                         }
 726                                                         if (v % 2)
 727                                                                 v2 = getc(IN);
 728                                                         break;
 729                                         }
 730                                 }
 731                         }
 732                         if (gray_scale) {
 733                                 index = 0;
 734                                 for (line = 0; line < Info_h.biHeight; line++) {
 735                                         for (col = 0; col < Info_h.biWidth; col++) {
 736                                                 image->comps[0].data[index] = table_R[(int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col]];
 737                                                 index++;
 738                                         }
 739                                 }
 740                         } else {
 741                                 index = 0;
 742                                 for (line = 0; line < Info_h.biHeight; line++) {
 743                                         for (col = 0; col < Info_h.biWidth; col++) {
 744                                                 unsigned char pixel_index = (int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col];
 745                                                 image->comps[0].data[index] = table_R[pixel_index];
 746                                                 image->comps[1].data[index] = table_G[pixel_index];
 747                                                 image->comps[2].data[index] = table_B[pixel_index];
 748                                                 index++;
 749                                         }
 750                                 }
 751                         }
 752                         free(RGB);
 753       free(table_R);
 754       free(table_G);
 755       free(table_B);
 756         } else {
 757                 fprintf(stderr,
 758                         "Other system than 24 bits/pixels or 8 bits (no RLE coding) is not yet implemented [%d]\n", Info_h.biBitCount);
 759         }
 760         fclose(IN);
 761  }
 762
 763  return image;
 764 }
 765
 766 int imagetobmp(opj_image_t * image, const char *outfile) {
 767         int w, wr, h, hr;
 768         int i, pad;
 769         FILE *fdest = NULL;
 770         int adjustR, adjustG, adjustB;
 771
 772         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
 773                 && image->comps[1].dx == image->comps[2].dx
 774                 && image->comps[0].dy == image->comps[1].dy
 775                 && image->comps[1].dy == image->comps[2].dy
 776                 && image->comps[0].prec == image->comps[1].prec
 777                 && image->comps[1].prec == image->comps[2].prec) {
 778
 779                 /* -->> -->> -->> -->>
 780                 24 bits color
 781                 <<-- <<-- <<-- <<-- */
 782
 783                 fdest = fopen(outfile, "wb");
 784                 if (!fdest) {
 785                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
 786                         return 1;
 787                 }
 788
 789                 w = image->comps[0].w;
 790                 wr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
 791
 792                 h = image->comps[0].h;
 793                 hr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
 794
 795                 fprintf(fdest, "BM");
 796
 797                 /* FILE HEADER */
 798                 /* ------------- */
 799                 fprintf(fdest, "%c%c%c%c",
 800                         (unsigned char) (hr * wr * 3 + 3 * hr * (wr % 2) + 54) & 0xff,
 801                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 8) & 0xff,
 802                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 16) & 0xff,
 803                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 24) & 0xff);
 804                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 805                 fprintf(fdest, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
 806
 807                 /* INFO HEADER   */
 808                 /* ------------- */
 809                 fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff,     ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
 810                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((wr) & 0xff),
 811                         (unsigned char) ((wr) >> 8) & 0xff,
 812                         (unsigned char) ((wr) >> 16) & 0xff,
 813                         (unsigned char) ((wr) >> 24) & 0xff);
 814                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((hr) & 0xff),
 815                         (unsigned char) ((hr) >> 8) & 0xff,
 816                         (unsigned char) ((hr) >> 16) & 0xff,
 817                         (unsigned char) ((hr) >> 24) & 0xff);
 818                 fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
 819                 fprintf(fdest, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
 820                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 821                 fprintf(fdest, "%c%c%c%c", (unsigned char) (3 * hr * wr + 3 * hr * (wr % 2)) & 0xff,
 822                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 8) & 0xff,
 823                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 16) & 0xff,
 824                         (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 24) & 0xff);
 825                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 826                 fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
 827                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 828                 fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
 829
 830                 if (image->comps[0].prec > 8) {
 831                         adjustR = image->comps[0].prec - 8;
 832                         printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
 833                 }
 834                 else
 835                         adjustR = 0;
 836                 if (image->comps[1].prec > 8) {
 837                         adjustG = image->comps[1].prec - 8;
 838                         printf("BMP CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
 839                 }
 840                 else
 841                         adjustG = 0;
 842                 if (image->comps[2].prec > 8) {
 843                         adjustB = image->comps[2].prec - 8;
 844                         printf("BMP CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
 845                 }
 846                 else
 847                         adjustB = 0;
 848
 849                 for (i = 0; i < wr * hr; i++) {
 850                         unsigned char rc, gc, bc;
 851                         int r, g, b;
 852
 853                         r = image->comps[0].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
 854                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
 855                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
 856                         g = image->comps[1].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
 857                         g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
 858                         gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
 859                         b = image->comps[2].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
 860                         b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
 861                         bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
 862
 863                         fprintf(fdest, "%c%c%c", bc, gc, rc);
 864
 865                         if ((i + 1) % wr == 0) {
 866                                 for (pad = (3 * wr) % 4 ? 4 - (3 * wr) % 4 : 0; pad > 0; pad--) /* ADD */
 867                                         fprintf(fdest, "%c", 0);
 868                         }
 869                 }
 870                 fclose(fdest);
 871         } else {                        /* Gray-scale */
 872
 873                 /* -->> -->> -->> -->>
 874                 8 bits non code (Gray scale)
 875                 <<-- <<-- <<-- <<-- */
 876
 877                 fdest = fopen(outfile, "wb");
 878                 w = image->comps[0].w;
 879                 wr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
 880
 881                 h = image->comps[0].h;
 882                 hr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
 883
 884                 fprintf(fdest, "BM");
 885
 886                 /* FILE HEADER */
 887                 /* ------------- */
 888                 fprintf(fdest, "%c%c%c%c", (unsigned char) (hr * wr + 54 + 1024 + hr * (wr % 2)) & 0xff,
 889                         (unsigned char) ((hr * wr + 54 + 1024 + hr * (wr % 2)) >> 8) & 0xff,
 890                         (unsigned char) ((hr * wr + 54 + 1024 + hr * (wr % 2)) >> 16) & 0xff,
 891                         (unsigned char) ((hr * wr + 54 + 1024 + wr * (wr % 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) ((wr) & 0xff),
 901                         (unsigned char) ((wr) >> 8) & 0xff,
 902                         (unsigned char) ((wr) >> 16) & 0xff,
 903                         (unsigned char) ((wr) >> 24) & 0xff);
 904                 fprintf(fdest, "%c%c%c%c", (unsigned char) ((hr) & 0xff),
 905                         (unsigned char) ((hr) >> 8) & 0xff,
 906                         (unsigned char) ((hr) >> 16) & 0xff,
 907                         (unsigned char) ((hr) >> 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) (hr * wr + hr * (wr % 2)) & 0xff,
 912                         (unsigned char) ((hr * wr + hr * (wr % 2)) >> 8) &      0xff,
 913                         (unsigned char) ((hr * wr + hr * (wr % 2)) >> 16) &     0xff,
 914                         (unsigned char) ((hr * wr + hr * (wr % 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                 }
 924
 925                 for (i = 0; i < 256; i++) {
 926                         fprintf(fdest, "%c%c%c%c", i, i, i, 0);
 927                 }
 928
 929                 for (i = 0; i < wr * hr; i++) {
 930                         unsigned char rc;
 931                         int r;
 932
 933                         r = image->comps[0].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
 934                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
 935                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
 936
 937                         fprintf(fdest, "%c", rc);
 938
 939                         if ((i + 1) % wr == 0) {
 940                                 for (pad = wr % 4 ? 4 - wr % 4 : 0; pad > 0; pad--)     /* ADD */
 941                                         fprintf(fdest, "%c", 0);
 942                         }
 943                 }
 944                 fclose(fdest);
 945         }
 946
 947         return 0;
 948 }
 949
 950 /* -->> -->> -->> -->>
 951
 952 PGX IMAGE FORMAT
 953
 954 <<-- <<-- <<-- <<-- */
 955
 956
 957 unsigned char readuchar(FILE * f)
 958 {
 959   unsigned char c1;
 960   fread(&c1, 1, 1, f);
 961   return c1;
 962 }
 963
 964 unsigned short readushort(FILE * f, int bigendian)
 965 {
 966   unsigned char c1, c2;
 967   fread(&c1, 1, 1, f);
 968   fread(&c2, 1, 1, f);
 969   if (bigendian)
 970     return (c1 << 8) + c2;
 971   else
 972     return (c2 << 8) + c1;
 973 }
 974
 975 unsigned int readuint(FILE * f, int bigendian)
 976 {
 977   unsigned char c1, c2, c3, c4;
 978   fread(&c1, 1, 1, f);
 979   fread(&c2, 1, 1, f);
 980   fread(&c3, 1, 1, f);
 981   fread(&c4, 1, 1, f);
 982   if (bigendian)
 983     return (c1 << 24) + (c2 << 16) + (c3 << 8) + c4;
 984   else
 985     return (c4 << 24) + (c3 << 16) + (c2 << 8) + c1;
 986 }
 987
 988 opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters) {
 989         FILE *f = NULL;
 990         int w, h, prec;
 991         int i, numcomps, max;
 992         OPJ_COLOR_SPACE color_space;
 993         opj_image_cmptparm_t cmptparm;  /* maximum of 1 component  */
 994         opj_image_t * image = NULL;
 995
 996         char endian1,endian2,sign;
 997         char signtmp[32];
 998
 999         char temp[32];
1000         int bigendian;
1001         opj_image_comp_t *comp = NULL;
1002
1003         numcomps = 1;
1004         color_space = CLRSPC_GRAY;
1005
1006         memset(&cmptparm, 0, sizeof(opj_image_cmptparm_t));
1007
1008         max = 0;
1009
1010         f = fopen(filename, "rb");
1011         if (!f) {
1012           fprintf(stderr, "Failed to open %s for reading !\n", filename);
1013           return NULL;
1014         }
1015
1016         fseek(f, 0, SEEK_SET);
1017         fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d",temp,&endian1,&endian2,signtmp,&prec,temp,&w,temp,&h);
1018
1019         i=0;
1020         sign='+';
1021         while (signtmp[i]!='\0') {
1022                 if (signtmp[i]=='-') sign='-';
1023                 i++;
1024         }
1025
1026         fgetc(f);
1027         if (endian1=='M' && endian2=='L') {
1028                 bigendian = 1;
1029         } else if (endian2=='M' && endian1=='L') {
1030                 bigendian = 0;
1031         } else {
1032                 fprintf(stderr, "Bad pgx header, please check input file\n");
1033                 return NULL;
1034         }
1035
1036         /* initialize image component */
1037
1038         cmptparm.x0 = parameters->image_offset_x0;
1039         cmptparm.y0 = parameters->image_offset_y0;
1040         cmptparm.w = !cmptparm.x0 ? (w - 1) * parameters->subsampling_dx + 1 : cmptparm.x0 + (w - 1) * parameters->subsampling_dx + 1;
1041         cmptparm.h = !cmptparm.y0 ? (h - 1) * parameters->subsampling_dy + 1 : cmptparm.y0 + (h - 1) * parameters->subsampling_dy + 1;
1042
1043         if (sign == '-') {
1044                 cmptparm.sgnd = 1;
1045         } else {
1046                 cmptparm.sgnd = 0;
1047         }
1048         cmptparm.prec = prec;
1049         cmptparm.bpp = prec;
1050         cmptparm.dx = parameters->subsampling_dx;
1051         cmptparm.dy = parameters->subsampling_dy;
1052
1053         /* create the image */
1054         image = opj_image_create(numcomps, &cmptparm, color_space);
1055         if(!image) {
1056                 fclose(f);
1057                 return NULL;
1058         }
1059         /* set image offset and reference grid */
1060         image->x0 = cmptparm.x0;
1061         image->y0 = cmptparm.x0;
1062         image->x1 = cmptparm.w;
1063         image->y1 = cmptparm.h;
1064
1065         /* set image data */
1066
1067         comp = &image->comps[0];
1068
1069         for (i = 0; i < w * h; i++) {
1070                 int v;
1071                 if (comp->prec <= 8) {
1072                         if (!comp->sgnd) {
1073                                 v = readuchar(f);
1074                         } else {
1075                                 v = (char) readuchar(f);
1076                         }
1077                 } else if (comp->prec <= 16) {
1078                         if (!comp->sgnd) {
1079                                 v = readushort(f, bigendian);
1080                         } else {
1081                                 v = (short) readushort(f, bigendian);
1082                         }
1083                 } else {
1084                         if (!comp->sgnd) {
1085                                 v = readuint(f, bigendian);
1086                         } else {
1087                                 v = (int) readuint(f, bigendian);
1088                         }
1089                 }
1090                 if (v > max)
1091                         max = v;
1092                 comp->data[i] = v;
1093         }
1094         fclose(f);
1095         comp->bpp = int_floorlog2(max) + 1;
1096
1097         return image;
1098 }
1099
1100 int imagetopgx(opj_image_t * image, const char *outfile) {
1101         int w, wr, h, hr;
1102         int i, j, compno;
1103         FILE *fdest = NULL;
1104
1105         for (compno = 0; compno < image->numcomps; compno++) {
1106                 opj_image_comp_t *comp = &image->comps[compno];
1107                 char bname[256]; /* buffer for name */
1108     char *name = bname; /* pointer */
1109     int nbytes = 0;
1110     const size_t olen = strlen(outfile);
1111     const size_t dotpos = olen - 4;
1112     const size_t total = dotpos + 1 + 1 + 4; /* '-' + '[1-3]' + '.pgx' */
1113     if( outfile[dotpos] != '.' ) {
1114       /* `pgx` was recognized but there is no dot at expected position */
1115       fprintf(stderr, "ERROR -> Impossible happen." );
1116       return 1;
1117       }
1118     if( total > 256 ) {
1119       name = (char*)malloc(total+1);
1120       }
1121     strncpy(name, outfile, dotpos);
1122                 if (image->numcomps > 1) {
1123                         sprintf(name+dotpos, "-%d.pgx", compno);
1124                 } else {
1125                         strcpy(name+dotpos, ".pgx");
1126                 }
1127                 fdest = fopen(name, "wb");
1128                 if (!fdest) {
1129                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
1130                         return 1;
1131                 }
1132     /* dont need name anymore */
1133     if( total > 256 ) {
1134       free(name);
1135       }
1136
1137                 w = image->comps[compno].w;
1138                 wr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
1139
1140                 h = image->comps[compno].h;
1141                 hr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
1142
1143                 fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, wr, hr);
1144                 if (comp->prec <= 8) {
1145                         nbytes = 1;
1146                 } else if (comp->prec <= 16) {
1147                         nbytes = 2;
1148                 } else {
1149                         nbytes = 4;
1150                 }
1151                 for (i = 0; i < wr * hr; i++) {
1152                         int v = image->comps[compno].data[i / wr * w + i % wr];
1153                         for (j = nbytes - 1; j >= 0; j--) {
1154                                 char byte = (char) (v >> (j * 8));
1155                                 fwrite(&byte, 1, 1, fdest);
1156                         }
1157                 }
1158                 fclose(fdest);
1159         }
1160
1161         return 0;
1162 }
1163
1164 /* -->> -->> -->> -->>
1165
1166 PNM IMAGE FORMAT
1167
1168 <<-- <<-- <<-- <<-- */
1169
1170 opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
1171         int subsampling_dx = parameters->subsampling_dx;
1172         int subsampling_dy = parameters->subsampling_dy;
1173
1174         FILE *f = NULL;
1175         int i, compno, numcomps, w, h;
1176         OPJ_COLOR_SPACE color_space;
1177         opj_image_cmptparm_t cmptparm[3];       /* maximum of 3 components */
1178         opj_image_t * image = NULL;
1179         char value;
1180
1181         f = fopen(filename, "rb");
1182         if (!f) {
1183                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
1184                 return 0;
1185         }
1186
1187         if (fgetc(f) != 'P')
1188                 return 0;
1189         value = fgetc(f);
1190
1191                 switch(value) {
1192                         case '2':       /* greyscale image type */
1193                         case '5':
1194                                 numcomps = 1;
1195                                 color_space = CLRSPC_GRAY;
1196                                 break;
1197
1198                         case '3':       /* RGB image type */
1199                         case '6':
1200                                 numcomps = 3;
1201                                 color_space = CLRSPC_SRGB;
1202                                 break;
1203
1204                         default:
1205                                 fclose(f);
1206                                 return NULL;
1207                 }
1208
1209                 fgetc(f);
1210
1211                 /* skip comments */
1212                 while(fgetc(f) == '#') while(fgetc(f) != '\n');
1213
1214                 fseek(f, -1, SEEK_CUR);
1215                 fscanf(f, "%d %d\n255", &w, &h);
1216                 fgetc(f);       /* <cr><lf> */
1217
1218         /* initialize image components */
1219         memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
1220         for(i = 0; i < numcomps; i++) {
1221                 cmptparm[i].prec = 8;
1222                 cmptparm[i].bpp = 8;
1223                 cmptparm[i].sgnd = 0;
1224                 cmptparm[i].dx = subsampling_dx;
1225                 cmptparm[i].dy = subsampling_dy;
1226                 cmptparm[i].w = w;
1227                 cmptparm[i].h = h;
1228         }
1229         /* create the image */
1230         image = opj_image_create(numcomps, &cmptparm[0], color_space);
1231         if(!image) {
1232                 fclose(f);
1233                 return NULL;
1234         }
1235
1236         /* set image offset and reference grid */
1237         image->x0 = parameters->image_offset_x0;
1238         image->y0 = parameters->image_offset_y0;
1239         image->x1 = parameters->image_offset_x0 + (w - 1) *     subsampling_dx + 1;
1240         image->y1 = parameters->image_offset_y0 + (h - 1) *     subsampling_dy + 1;
1241
1242         /* set image data */
1243
1244         if ((value == '2') || (value == '3')) { /* ASCII */
1245                 for (i = 0; i < w * h; i++) {
1246                         for(compno = 0; compno < numcomps; compno++) {
1247                                 unsigned int index = 0;
1248                                 fscanf(f, "%u", &index);
1249                                 /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
1250                                 image->comps[compno].data[i] = index;
1251                         }
1252                 }
1253         } else if ((value == '5') || (value == '6')) {  /* BINARY */
1254                 for (i = 0; i < w * h; i++) {
1255                         for(compno = 0; compno < numcomps; compno++) {
1256                                 unsigned char index = 0;
1257                                 fread(&index, 1, 1, f);
1258                                 /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
1259                                 image->comps[compno].data[i] = index;
1260                         }
1261                 }
1262         }
1263
1264         fclose(f);
1265
1266         return image;
1267 }
1268
1269 int imagetopnm(opj_image_t * image, const char *outfile) {
1270         int w, wr, wrr, h, hr, hrr, max;
1271         int i, compno;
1272         int adjustR, adjustG, adjustB, adjustX;
1273         FILE *fdest = NULL;
1274         char S2;
1275         const char *tmp = outfile;
1276
1277         while (*tmp) {
1278                 tmp++;
1279         }
1280         tmp--;
1281         tmp--;
1282         S2 = *tmp;
1283
1284         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
1285                 && image->comps[1].dx == image->comps[2].dx
1286                 && image->comps[0].dy == image->comps[1].dy
1287                 && image->comps[1].dy == image->comps[2].dy
1288                 && image->comps[0].prec == image->comps[1].prec
1289                 && image->comps[1].prec == image->comps[2].prec
1290                 && S2 !='g' && S2 !='G') {
1291
1292                 fdest = fopen(outfile, "wb");
1293                 if (!fdest) {
1294                         fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1295                         return 1;
1296                 }
1297
1298                 w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
1299                 wr = image->comps[0].w;
1300                 wrr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
1301
1302                 h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
1303                 hr = image->comps[0].h;
1304                 hrr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
1305
1306                 max = image->comps[0].prec > 8 ? 255 : (1 << image->comps[0].prec) - 1;
1307
1308                 image->comps[0].x0 = int_ceildivpow2(image->comps[0].x0 - int_ceildiv(image->x0, image->comps[0].dx), image->comps[0].factor);
1309                 image->comps[0].y0 = int_ceildivpow2(image->comps[0].y0 -       int_ceildiv(image->y0, image->comps[0].dy), image->comps[0].factor);
1310
1311                 fprintf(fdest, "P6\n%d %d\n%d\n", wrr, hrr, max);
1312
1313                 if (image->comps[0].prec > 8) {
1314                         adjustR = image->comps[0].prec - 8;
1315                         printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
1316                 }
1317                 else
1318                         adjustR = 0;
1319                 if (image->comps[1].prec > 8) {
1320                         adjustG = image->comps[1].prec - 8;
1321                         printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
1322                 }
1323                 else
1324                         adjustG = 0;
1325                 if (image->comps[2].prec > 8) {
1326                         adjustB = image->comps[2].prec - 8;
1327                         printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
1328                 }
1329                 else
1330                         adjustB = 0;
1331
1332
1333                 for (i = 0; i < wrr * hrr; i++) {
1334                         int r, g, b;
1335                         unsigned char rc,gc,bc;
1336                         r = image->comps[0].data[i / wrr * wr + i % wrr];
1337                         r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
1338                         rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
1339
1340                         g = image->comps[1].data[i / wrr * wr + i % wrr];
1341                         g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
1342                         gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
1343
1344                         b = image->comps[2].data[i / wrr * wr + i % wrr];
1345                         b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
1346                         bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
1347
1348                         fprintf(fdest, "%c%c%c", rc, gc, bc);
1349                 }
1350                 fclose(fdest);
1351
1352         } else {
1353                 int ncomp=(S2=='g' || S2=='G')?1:image->numcomps;
1354                 if (image->numcomps > ncomp) {
1355                         fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
1356                         fprintf(stderr,"           is written to the file\n");
1357                 }
1358                 for (compno = 0; compno < ncomp; compno++) {
1359                         char name[256];
1360                         if (ncomp > 1) {
1361                                 sprintf(name, "%d.%s", compno, outfile);
1362                         } else {
1363                                 sprintf(name, "%s", outfile);
1364                         }
1365
1366                         fdest = fopen(name, "wb");
1367                         if (!fdest) {
1368                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
1369                                 return 1;
1370                         }
1371
1372                         w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx);
1373                         wr = image->comps[compno].w;
1374                         wrr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
1375
1376                         h = int_ceildiv(image->y1 - image->y0, image->comps[compno].dy);
1377                         hr = image->comps[compno].h;
1378                         hrr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
1379
1380                         max = image->comps[compno].prec > 8 ? 255 : (1 << image->comps[compno].prec) - 1;
1381
1382                         image->comps[compno].x0 = int_ceildivpow2(image->comps[compno].x0 - int_ceildiv(image->x0, image->comps[compno].dx), image->comps[compno].factor);
1383                         image->comps[compno].y0 = int_ceildivpow2(image->comps[compno].y0 - int_ceildiv(image->y0, image->comps[compno].dy), image->comps[compno].factor);
1384
1385                         fprintf(fdest, "P5\n%d %d\n%d\n", wrr, hrr, max);
1386
1387                         if (image->comps[compno].prec > 8) {
1388                                 adjustX = image->comps[0].prec - 8;
1389                                 printf("PNM CONVERSION: Truncating component %d from %d bits to 8 bits\n",compno, image->comps[compno].prec);
1390                         }
1391                         else
1392                                 adjustX = 0;
1393
1394                         for (i = 0; i < wrr * hrr; i++) {
1395                                 int l;
1396                                 unsigned char lc;
1397                                 l = image->comps[compno].data[i / wrr * wr + i % wrr];
1398                                 l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
1399                                 lc = (unsigned char) ((l >> adjustX)+((l >> (adjustX-1))%2));
1400                                 fprintf(fdest, "%c", lc);
1401                         }
1402                         fclose(fdest);
1403                 }
1404         }
1405
1406         return 0;
1407 }
1408
1409 /* -->> -->> -->> -->>
1410
1411         TIFF IMAGE FORMAT
1412
1413  <<-- <<-- <<-- <<-- */
1414
1415 typedef struct tiff_infoheader{
1416         DWORD tiWidth;  // Width of Image in pixel
1417         DWORD tiHeight; // Height of Image in pixel
1418         DWORD tiPhoto;  // Photometric
1419         WORD  tiBps;    // Bits per sample
1420         WORD  tiSf;             // Sample Format
1421         WORD  tiSpp;    // Sample per pixel 1-bilevel,gray scale , 2- RGB
1422         WORD  tiPC;     // Planar config (1-Interleaved, 2-Planarcomp)
1423 }tiff_infoheader_t;
1424
1425 int imagetotif(opj_image_t * image, const char *outfile) {
1426         int width, height;
1427         int bps,index;
1428         TIFF *tif;
1429         tdata_t buf;
1430         tstrip_t strip;
1431         tsize_t strip_size;
1432
1433         if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
1434                 && image->comps[1].dx == image->comps[2].dx
1435                 && image->comps[0].dy == image->comps[1].dy
1436                 && image->comps[1].dy == image->comps[2].dy
1437                 && image->comps[0].prec == image->comps[1].prec
1438                 && image->comps[1].prec == image->comps[2].prec) {
1439
1440                         /* -->> -->> -->>
1441                         RGB color
1442                         <<-- <<-- <<-- */
1443
1444                         tif = TIFFOpen(outfile, "wb");
1445                         if (!tif) {
1446                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1447                                 return 1;
1448                         }
1449
1450                         width   = image->comps[0].w;
1451                         height= image->comps[0].h;
1452                         bps             = image->comps[0].prec;
1453                         /* Set tags */
1454                         TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
1455                         TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
1456                         TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
1457                         TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
1458                         TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
1459                         TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
1460                         TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
1461                         TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
1462
1463                         /* Get a buffer for the data */
1464                         buf = _TIFFmalloc(TIFFStripSize(tif));
1465                         index=0;
1466                         strip_size=0;
1467                         strip_size=TIFFStripSize(tif);
1468                         for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1469                                 unsigned char *dat8;
1470                                 int i;
1471                                 dat8 = buf;
1472                                 if (image->comps[0].prec == 8){
1473                                         for (i=0; i<TIFFStripSize(tif); i+=3) { // 8 bits per pixel
1474                                                 dat8[i+0] = image->comps[0].data[index] ;       // R
1475                                                 dat8[i+1] = image->comps[1].data[index] ;       // G
1476                                                 dat8[i+2] = image->comps[2].data[index] ;       // B
1477                                                 index++;
1478                                         }
1479                                 }else if (image->comps[0].prec == 12){
1480                                         for (i=0; i<TIFFStripSize(tif); i+=9) { // 12 bits per pixel
1481                                                 dat8[i+0] = (image->comps[0].data[index]>>8)<<4 | (image->comps[0].data[index]>>4);
1482                                                 dat8[i+1] = (image->comps[0].data[index]<<4)|((image->comps[1].data[index]>>8)& 0x0f);
1483                                                 dat8[i+2] = (image->comps[1].data[index]);
1484                                                 dat8[i+3] = (image->comps[2].data[index]>>8)<<4 | (image->comps[2].data[index]>>4);
1485                                                 dat8[i+4] = (image->comps[2].data[index]<<4)|((image->comps[0].data[index+1]>>8)& 0x0f);
1486                                                 dat8[i+5] = (image->comps[0].data[index+1]);
1487                                                 dat8[i+6] = (image->comps[1].data[index+1]>>8)<<4 | (image->comps[1].data[index+1]>>4);
1488                                                 dat8[i+7] = (image->comps[1].data[index+1]<<4)|((image->comps[2].data[index+1]>>8)& 0x0f);
1489                                                 dat8[i+8] = (image->comps[2].data[index+1]);
1490                                                 index+=2;
1491                                         }
1492                                 }else if (image->comps[0].prec == 16){
1493                                         for (i=0; i<TIFFStripSize(tif); i+=6) { // 16 bits per pixel
1494                                                 dat8[i+0] =  image->comps[0].data[index];//LSB
1495                                                 dat8[i+1] = (image->comps[0].data[index]>> 8);//MSB
1496                                                 dat8[i+2] =  image->comps[1].data[index];
1497                                                 dat8[i+3] = (image->comps[1].data[index]>> 8);
1498                                                 dat8[i+4] =  image->comps[2].data[index];
1499                                                 dat8[i+5] = (image->comps[2].data[index]>> 8);
1500                                                 index++;
1501                                         }
1502                                 }else{
1503                                         fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
1504                                         fprintf(stderr,"Aborting\n");
1505                                         return 1;
1506                                 }
1507                                 TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
1508                         }
1509                         _TIFFfree(buf);
1510                         TIFFClose(tif);
1511                 }else if (image->numcomps == 1){
1512                         /* -->> -->> -->>
1513                         Black and White
1514                         <<-- <<-- <<-- */
1515
1516                         tif = TIFFOpen(outfile, "wb");
1517                         if (!tif) {
1518                                 fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
1519                                 return 1;
1520                         }
1521
1522                         width   = image->comps[0].w;
1523                         height= image->comps[0].h;
1524                         bps             = image->comps[0].prec;
1525
1526                         /* Set tags */
1527                         TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
1528                         TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
1529                         TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
1530                         TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
1531                         TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
1532                         TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
1533                         TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
1534                         TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
1535
1536                         /* Get a buffer for the data */
1537                         buf = _TIFFmalloc(TIFFStripSize(tif));
1538                         index = 0;
1539                         strip_size = 0;
1540                         strip_size = TIFFStripSize(tif);
1541                         for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1542                                 unsigned char *dat8;
1543                                 int i;
1544                                 dat8 = buf;
1545                                 if (image->comps[0].prec == 8){
1546                                         for (i=0; i<TIFFStripSize(tif); i+=1) { // 8 bits per pixel
1547                                                 dat8[i+0] = image->comps[0].data[index] ;
1548                                                 index++;
1549                                         }
1550                                 }else if (image->comps[0].prec == 12){
1551                                         for (i = 0; i<TIFFStripSize(tif); i+=3) {       // 12 bits per pixel
1552                                                 dat8[i+0] = (image->comps[0].data[index]>>8)<<4 | (image->comps[0].data[index]>>4);
1553                                                 dat8[i+1] = (image->comps[0].data[index]<<4)|((image->comps[0].data[index+1]>>8)& 0x0f);
1554                                                 dat8[i+2] = (image->comps[0].data[index+1]);
1555                                                 index+=2;
1556                                         }
1557                                 }else if (image->comps[0].prec == 16){
1558                                         for (i=0; i<TIFFStripSize(tif); i+=2) { // 16 bits per pixel
1559                                                 dat8[i+0] =  image->comps[0].data[index];
1560                                                 dat8[i+1] = (image->comps[0].data[index]>> 8);
1561                                                 index++;
1562                                         }
1563                                 }else{
1564                                         fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
1565                                         fprintf(stderr,"Aborting\n");
1566                                         return 1;
1567                                 }
1568                                 TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
1569                         }
1570                         _TIFFfree(buf);
1571                         TIFFClose(tif);
1572                 }else{
1573                         fprintf(stderr,"False color format. Only RGB & Grayscale has been implemented\n");
1574                         fprintf(stderr,"Aborting\n");
1575                         return 1;
1576                 }
1577                 return 0;
1578 }
1579
1580 opj_image_t* tiftoimage(const char *filename, opj_cparameters_t *parameters)
1581 {
1582         int subsampling_dx = parameters->subsampling_dx;
1583         int subsampling_dy = parameters->subsampling_dy;
1584         TIFF *tif;
1585         tiff_infoheader_t Info;
1586         tdata_t buf;
1587         tstrip_t strip;
1588         tsize_t strip_size;
1589         int j, numcomps, w, h,index;
1590         OPJ_COLOR_SPACE color_space;
1591         opj_image_cmptparm_t cmptparm[3];
1592         opj_image_t * image = NULL;
1593
1594         tif = TIFFOpen(filename, "r");
1595
1596         if (!tif) {
1597                 fprintf(stderr, "Failed to open %s for reading\n", filename);
1598                 return 0;
1599         }
1600
1601         TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &Info.tiWidth);
1602         TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &Info.tiHeight);
1603         TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &Info.tiBps);
1604         TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &Info.tiSf);
1605         TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &Info.tiSpp);
1606         Info.tiPhoto = 0;
1607         TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &Info.tiPhoto);
1608         TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &Info.tiPC);
1609         w= Info.tiWidth;
1610         h= Info.tiHeight;
1611
1612         if (Info.tiPhoto == 2) {
1613                 /* -->> -->> -->>
1614                 RGB color
1615                 <<-- <<-- <<-- */
1616
1617                 numcomps = 3;
1618                 color_space = CLRSPC_SRGB;
1619                 /* initialize image components*/
1620                 memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
1621                 for(j = 0; j < numcomps; j++) {
1622                         if (parameters->cp_cinema) {
1623                                 cmptparm[j].prec = 12;
1624                                 cmptparm[j].bpp = 12;
1625                         }else{
1626                                 cmptparm[j].prec = Info.tiBps;
1627                                 cmptparm[j].bpp = Info.tiBps;
1628                         }
1629                         cmptparm[j].sgnd = 0;
1630                         cmptparm[j].dx = subsampling_dx;
1631                         cmptparm[j].dy = subsampling_dy;
1632                         cmptparm[j].w = w;
1633                         cmptparm[j].h = h;
1634                 }
1635                 /* create the image*/
1636                 image = opj_image_create(numcomps, &cmptparm[0], color_space);
1637                 if(!image) {
1638                         TIFFClose(tif);
1639                         return NULL;
1640                 }
1641
1642                 /* set image offset and reference grid */
1643                 image->x0 = parameters->image_offset_x0;
1644                 image->y0 = parameters->image_offset_y0;
1645                 image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
1646                 image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
1647
1648                 buf = _TIFFmalloc(TIFFStripSize(tif));
1649                 strip_size=0;
1650                 strip_size=TIFFStripSize(tif);
1651                 index = 0;
1652                 /* Read the Image components*/
1653                 for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1654                         unsigned char *dat8;
1655                         int i, ssize;
1656                         ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
1657                         dat8 = buf;
1658
1659                         if (Info.tiBps==12){
1660                                 for (i=0; i<ssize; i+=9) {      /*12 bits per pixel*/
1661                                         image->comps[0].data[index]   = ( dat8[i+0]<<4 )                |(dat8[i+1]>>4);
1662                                         image->comps[1].data[index]   = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
1663                                         image->comps[2].data[index]   = ( dat8[i+3]<<4)                 |(dat8[i+4]>>4);
1664                                         image->comps[0].data[index+1] = ((dat8[i+4]& 0x0f)<< 8) | dat8[i+5];
1665                                         image->comps[1].data[index+1] = ( dat8[i+6] <<4)                |(dat8[i+7]>>4);
1666                                         image->comps[2].data[index+1] = ((dat8[i+7]& 0x0f)<< 8) | dat8[i+8];
1667                                         index+=2;
1668                                 }
1669                         }
1670                         else if( Info.tiBps==16){
1671                                 for (i=0; i<ssize; i+=6) {      /* 16 bits per pixel */
1672                                         image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0];   // R
1673                                         image->comps[1].data[index] = ( dat8[i+3] << 8 ) | dat8[i+2];   // G
1674                                         image->comps[2].data[index] = ( dat8[i+5] << 8 ) | dat8[i+4];   // B
1675                                         if(parameters->cp_cinema){/* Rounding to 12 bits*/
1676                                                 image->comps[0].data[index] = (image->comps[0].data[index] + 0x08) >> 4 ;
1677                                                 image->comps[1].data[index] = (image->comps[1].data[index] + 0x08) >> 4 ;
1678                                                 image->comps[2].data[index] = (image->comps[2].data[index] + 0x08) >> 4 ;
1679                                         }
1680                                         index++;
1681                                 }
1682                         }
1683                         else if ( Info.tiBps==8){
1684                                 for (i=0; i<ssize; i+=3) {      /* 8 bits per pixel */
1685                                         image->comps[0].data[index] = dat8[i+0];        // R
1686                                         image->comps[1].data[index] = dat8[i+1];        // G
1687                                         image->comps[2].data[index] = dat8[i+2];        // B
1688                                         if(parameters->cp_cinema){/* Rounding to 12 bits*/
1689                                                 image->comps[0].data[index] = image->comps[0].data[index] << 4 ;
1690                                                 image->comps[1].data[index] = image->comps[1].data[index] << 4 ;
1691                                                 image->comps[2].data[index] = image->comps[2].data[index] << 4 ;
1692                                         }
1693                                         index++;
1694                                 }
1695                         }
1696                         else{
1697                                 fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
1698                                 fprintf(stderr,"Aborting\n");
1699                                 return NULL;
1700                         }
1701                 }
1702
1703                 _TIFFfree(buf);
1704                 TIFFClose(tif);
1705         }else if(Info.tiPhoto == 1) {
1706                 /* -->> -->> -->>
1707                 Black and White
1708                 <<-- <<-- <<-- */
1709
1710                 numcomps = 1;
1711                 color_space = CLRSPC_GRAY;
1712                 /* initialize image components*/
1713                 memset(&cmptparm[0], 0, sizeof(opj_image_cmptparm_t));
1714                 cmptparm[0].prec = Info.tiBps;
1715                 cmptparm[0].bpp = Info.tiBps;
1716                 cmptparm[0].sgnd = 0;
1717                 cmptparm[0].dx = subsampling_dx;
1718                 cmptparm[0].dy = subsampling_dy;
1719                 cmptparm[0].w = w;
1720                 cmptparm[0].h = h;
1721
1722                 /* create the image*/
1723                 image = opj_image_create(numcomps, &cmptparm[0], color_space);
1724                 if(!image) {
1725                         TIFFClose(tif);
1726                         return NULL;
1727                 }
1728                 /* set image offset and reference grid */
1729                 image->x0 = parameters->image_offset_x0;
1730                 image->y0 = parameters->image_offset_y0;
1731                 image->x1 =     !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
1732                 image->y1 =     !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
1733
1734                 buf = _TIFFmalloc(TIFFStripSize(tif));
1735                 strip_size = 0;
1736                 strip_size = TIFFStripSize(tif);
1737                 index = 0;
1738                 /* Read the Image components*/
1739                 for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
1740                         unsigned char *dat8;
1741                         int i, ssize;
1742                         ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
1743                         dat8 = buf;
1744
1745                         if (Info.tiBps==12){
1746                                 for (i=0; i<ssize; i+=3) {      /* 12 bits per pixel*/
1747                                         image->comps[0].data[index] = ( dat8[i+0]<<4 )                          |(dat8[i+1]>>4) ;
1748                                         image->comps[0].data[index] = ((dat8[i+1]& 0x0f)<< 8)   | dat8[i+2];
1749                                         index+=2;
1750                                 }
1751                         }
1752                         else if( Info.tiBps==16){
1753                                 for (i=0; i<ssize; i+=2) {      /* 16 bits per pixel */
1754                                         image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0];
1755                                         index++;
1756                                 }
1757                         }
1758                         else if ( Info.tiBps==8){
1759                                 for (i=0; i<ssize; i+=1) {      /* 8 bits per pixel */
1760                                         image->comps[0].data[index] = dat8[i+0];
1761                                         index++;
1762                                 }
1763                         }
1764                         else{
1765                                 fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
1766                                 fprintf(stderr,"Aborting\n");
1767                                 return NULL;
1768                         }
1769                 }
1770
1771                 _TIFFfree(buf);
1772                 TIFFClose(tif);
1773         }else{
1774                 fprintf(stderr,"False color format. Only RGB & Grayscale has been implemented\n");
1775                 fprintf(stderr,"Aborting\n");
1776                 return NULL;
1777         }
1778         return image;
1779 }
1780
1781 /* -->> -->> -->> -->>
1782
1783         RAW IMAGE FORMAT
1784
1785  <<-- <<-- <<-- <<-- */
1786
1787 opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
1788         int subsampling_dx = parameters->subsampling_dx;
1789         int subsampling_dy = parameters->subsampling_dy;
1790
1791         FILE *f = NULL;
1792         int i, compno, numcomps, w, h;
1793         OPJ_COLOR_SPACE color_space;
1794         opj_image_cmptparm_t *cmptparm;
1795         opj_image_t * image = NULL;
1796         unsigned short ch;
1797
1798         if((raw_cp->rawWidth * raw_cp->rawHeight * raw_cp->rawComp * raw_cp->rawBitDepth) == 0)
1799         {
1800                 fprintf(stderr,"\nError: invalid raw image parameters\n");
1801                 fprintf(stderr,"Please use the Format option -F:\n");
1802                 fprintf(stderr,"-F rawWidth,rawHeight,rawComp,rawBitDepth,s/u (Signed/Unsigned)\n");
1803                 fprintf(stderr,"Example: -i lena.raw -o lena.j2k -F 512,512,3,8,u\n");
1804                 fprintf(stderr,"Aborting\n");
1805                 return NULL;
1806         }
1807
1808         f = fopen(filename, "rb");
1809         if (!f) {
1810                 fprintf(stderr, "Failed to open %s for reading !!\n", filename);
1811                 fprintf(stderr,"Aborting\n");
1812                 return NULL;
1813         }
1814         numcomps = raw_cp->rawComp;
1815         color_space = CLRSPC_SRGB;
1816         w = raw_cp->rawWidth;
1817         h = raw_cp->rawHeight;
1818         cmptparm = (opj_image_cmptparm_t*) malloc(numcomps * sizeof(opj_image_cmptparm_t));
1819
1820         /* initialize image components */
1821         memset(&cmptparm[0], 0, numcomps * sizeof(opj_image_cmptparm_t));
1822         for(i = 0; i < numcomps; i++) {
1823                 cmptparm[i].prec = raw_cp->rawBitDepth;
1824                 cmptparm[i].bpp = raw_cp->rawBitDepth;
1825                 cmptparm[i].sgnd = raw_cp->rawSigned;
1826                 cmptparm[i].dx = subsampling_dx;
1827                 cmptparm[i].dy = subsampling_dy;
1828                 cmptparm[i].w = w;
1829                 cmptparm[i].h = h;
1830         }
1831         /* create the image */
1832         image = opj_image_create(numcomps, &cmptparm[0], color_space);
1833         if(!image) {
1834                 fclose(f);
1835                 return NULL;
1836         }
1837
1838         /* set image offset and reference grid */
1839         image->x0 = parameters->image_offset_x0;
1840         image->y0 = parameters->image_offset_y0;
1841         image->x1 = parameters->image_offset_x0 + (w - 1) *     subsampling_dx + 1;
1842         image->y1 = parameters->image_offset_y0 + (h - 1) *     subsampling_dy + 1;
1843
1844         if(raw_cp->rawBitDepth <= 8)
1845         {
1846                 unsigned char value = 0;
1847                 for(compno = 0; compno < numcomps; compno++) {
1848                         for (i = 0; i < w * h; i++) {
1849                                 if (!fread(&value, 1, 1, f)) {
1850                                         fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
1851                                         return NULL;
1852                                 }
1853                                 image->comps[compno].data[i] = raw_cp->rawSigned?(char)value:value;
1854                         }
1855                 }
1856         }
1857         else
1858         {
1859                 unsigned short value = 0;
1860                 for(compno = 0; compno < numcomps; compno++) {
1861                         for (i = 0; i < w * h; i++) {
1862                                 if (!fread(&value, 2, 1, f)) {
1863                                         fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
1864                                         return NULL;
1865                                 }
1866                                 image->comps[compno].data[i] = raw_cp->rawSigned?(short)value:value;
1867                         }
1868                 }
1869         }
1870
1871         if (fread(&ch, 1, 1, f)) {
1872                 fprintf(stderr,"Warning. End of raw file not reached... processing anyway\n");
1873         }
1874
1875         fclose(f);
1876
1877         return image;
1878 }
1879
1880 int imagetoraw(opj_image_t * image, const char *outfile)
1881 {
1882         FILE *rawFile = NULL;
1883         int compno, pixelsToWrite, offset, cont;
1884
1885         if((image->numcomps * image->x1 * image->y1) == 0)
1886         {
1887                 fprintf(stderr,"\nError: invalid raw image parameters\n");
1888                 return 1;
1889         }
1890
1891         rawFile = fopen(outfile, "wb");
1892         if (!rawFile) {
1893                 fprintf(stderr, "Failed to open %s for writing !!\n", outfile);
1894                 return 1;
1895         }
1896
1897         fprintf(stdout,"Raw image characteristics: %d components\n", image->numcomps);
1898
1899         for(compno = 0; compno < image->numcomps; compno++)
1900         {
1901                 fprintf(stdout,"Component %d characteristics: %dx%dx%d %s\n", compno, image->comps[compno].w,
1902                         image->comps[compno].h, image->comps[compno].prec, image->comps[compno].sgnd==1 ? "signed": "unsigned");
1903
1904                 pixelsToWrite = image->comps[compno].w * image->comps[compno].h;
1905                 offset = 0;
1906
1907                 if(image->comps[compno].prec <= 8)
1908                 {
1909                         if(image->comps[compno].sgnd == 1)
1910                         {
1911                                 signed char curr;
1912                                 int mask = (1 << image->comps[compno].prec) - 1;
1913                                 for(cont = 0; cont < pixelsToWrite; cont++)
1914                                 {
1915                                         curr = (signed char) (image->comps[compno].data[cont] & mask);
1916                                         fwrite(&curr, sizeof(signed char), 1, rawFile);
1917                                 }
1918                         }
1919                         else if(image->comps[compno].sgnd == 0)
1920                         {
1921                                 unsigned char curr;
1922                                 int mask = (1 << image->comps[compno].prec) - 1;
1923                                 for(cont = 0; cont < pixelsToWrite; cont++)
1924                                 {
1925                                         curr = (unsigned char) (image->comps[compno].data[cont] & mask);
1926                                         fwrite(&curr, sizeof(unsigned char), 1, rawFile);
1927                                 }
1928                         }
1929                 }
1930                 else if(image->comps[compno].prec <= 16)
1931                 {
1932                         if(image->comps[compno].sgnd == 1)
1933                         {
1934                                 signed short int curr;
1935                                 int mask = (1 << image->comps[compno].prec) - 1;
1936                                 for(cont = 0; cont < pixelsToWrite; cont++)
1937                                 {
1938                                         curr = (signed short int) (image->comps[compno].data[cont] & mask);
1939                                         fwrite(&curr, sizeof(signed short int), 1, rawFile);
1940                                 }
1941                         }
1942                         else if(image->comps[compno].sgnd == 0)
1943                         {
1944                                 unsigned short int curr;
1945                                 int mask = (1 << image->comps[compno].prec) - 1;
1946                                 for(cont = 0; cont < pixelsToWrite; cont++)
1947                                 {
1948                                         curr = (unsigned short int) (image->comps[compno].data[cont] & mask);
1949                                         fwrite(&curr, sizeof(unsigned short int), 1, rawFile);
1950                                 }
1951                         }
1952                 }
1953                 else if (image->comps[compno].prec <= 32)
1954                 {
1955
1956
1957                 }
1958                 else
1959                 {
1960                         fprintf(stderr,"\nError: invalid precision\n");
1961                         return 1;
1962                 }
1963         }
1964         fclose(rawFile);
1965         return 0;
1966 }