/*

* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium

* Copyright (c) 2002-2007, Professor Benoit Macq

* Copyright (c) 2001-2003, David Janssens

* Copyright (c) 2002-2003, Yannick Verschueren

* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe

* Copyright (c) 2005, Herve Drolon, FreeImage Team

* Copyright (c) 2006-2007, Parvatha Elangovan

* All rights reserved.

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

*

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'

* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

* POSSIBILITY OF SUCH DAMAGE.

*/

#include "opj_config.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#ifdef HAVE_LIBTIFF

#ifdef _WIN32

#include "../libs/libtiff/tiffio.h"

#else

#include <tiffio.h>

#endif /* _WIN32 */

#endif /* HAVE_LIBTIFF */

#ifdef HAVE_LIBPNG

#ifdef _WIN32

#include "../libs/png/png.h"

#else

#include <png.h>

#endif /* _WIN32 */

#endif /* HAVE_LIBPNG */

#include "../libopenjpeg/openjpeg.h"

#include "convert.h"

/*

* Get logarithm of an integer and round downwards.

*

* log2(a)

*/

static int int_floorlog2(int a) {

int l;

for (l = 0; a > 1; l++) {

a >>= 1;

}

return l;

}

/*

* Divide an integer by a power of 2 and round upwards.

*

* a divided by 2^b

*/

static int int_ceildivpow2(int a, int b) {

return (a + (1 << b) - 1) >> b;

}

/*

* Divide an integer and round upwards.

*

* a divided by b

*/

static int int_ceildiv(int a, int b) {

return (a + b - 1) / b;

}

/* -->> -->> -->> -->>

TGA IMAGE FORMAT

<<-- <<-- <<-- <<-- */

// TGA header definition.

#pragma pack(push,1) // Pack structure byte aligned

typedef struct tga_header

{

unsigned char id_length; /* Image id field length */

unsigned char colour_map_type; /* Colour map type */

unsigned char image_type; /* Image type */

/*

** Colour map specification

*/

unsigned short colour_map_index; /* First entry index */

unsigned short colour_map_length; /* Colour map length */

unsigned char colour_map_entry_size; /* Colour map entry size */

/*

** Image specification

*/

unsigned short x_origin; /* x origin of image */

unsigned short y_origin; /* u origin of image */

unsigned short image_width; /* Image width */

unsigned short image_height; /* Image height */

unsigned char pixel_depth; /* Pixel depth */

unsigned char image_desc; /* Image descriptor */

} tga_header;

#pragma pack(pop) // Return to normal structure packing alignment.

int tga_readheader(FILE *fp, unsigned int *bits_per_pixel,

unsigned int *width, unsigned int *height, int *flip_image)

{

int palette_size;

tga_header tga ;

if (!bits_per_pixel || !width || !height || !flip_image)

return 0;

// Read TGA header

fread((unsigned char*)&tga, sizeof(tga_header), 1, fp);

*bits_per_pixel = tga.pixel_depth;

*width = tga.image_width;

*height = tga.image_height ;

// Ignore tga identifier, if present ...

if (tga.id_length)

{

unsigned char *id = (unsigned char *) malloc(tga.id_length);

fread(id, tga.id_length, 1, fp);

free(id);

}

// Test for compressed formats ... not yet supported ...

// Note :- 9 - RLE encoded palettized.

// 10 - RLE encoded RGB.

if (tga.image_type > 8)

{

fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n");

return 0 ;

}

*flip_image = !(tga.image_desc & 32);

// Palettized formats are not yet supported, skip over the palette, if present ...

palette_size = tga.colour_map_length * (tga.colour_map_entry_size/8);

if (palette_size>0)

{

fprintf(stderr, "File contains a palette - not yet supported.");

fseek(fp, palette_size, SEEK_CUR);

}

return 1;

}

int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height,

bool flip_image)

{

tga_header tga;

if (!bits_per_pixel || !width || !height)

return 0;

memset(&tga, 0, sizeof(tga_header));

tga.pixel_depth = bits_per_pixel;

tga.image_width = width;

tga.image_height = height;

tga.image_type = 2; // Uncompressed.

tga.image_desc = 8; // 8 bits per component.

if (flip_image)

tga.image_desc |= 32;

// Write TGA header

fwrite((unsigned char*)&tga, sizeof(tga_header), 1, fp);

return 1;

}

opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters) {

FILE *f;

opj_image_t *image;

unsigned int image_width, image_height, pixel_bit_depth;

unsigned int x, y;

int flip_image=0;

opj_image_cmptparm_t cmptparm[4]; /* maximum 4 components */

int numcomps;

OPJ_COLOR_SPACE color_space;

bool mono ;

bool save_alpha;

int subsampling_dx, subsampling_dy;

int i;

f = fopen(filename, "rb");

if (!f) {

fprintf(stderr, "Failed to open %s for reading !!\n", filename);

return 0;

}

if (!tga_readheader(f, &pixel_bit_depth, &image_width, &image_height, &flip_image))

return NULL;

// We currently only support 24 & 32 bit tga's ...

if (!((pixel_bit_depth == 24) || (pixel_bit_depth == 32)))

return NULL;

/* initialize image components */

memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t));

mono = (pixel_bit_depth == 8) || (pixel_bit_depth == 16); // Mono with & without alpha.

save_alpha = (pixel_bit_depth == 16) || (pixel_bit_depth == 32); // Mono with alpha, or RGB with alpha

if (mono) {

color_space = CLRSPC_GRAY;

numcomps = save_alpha ? 2 : 1;

}

else {

numcomps = save_alpha ? 4 : 3;

color_space = CLRSPC_SRGB;

}

subsampling_dx = parameters->subsampling_dx;

subsampling_dy = parameters->subsampling_dy;

for (i = 0; i < numcomps; i++) {

cmptparm[i].prec = 8;

cmptparm[i].bpp = 8;

cmptparm[i].sgnd = 0;

cmptparm[i].dx = subsampling_dx;

cmptparm[i].dy = subsampling_dy;

cmptparm[i].w = image_width;

cmptparm[i].h = image_height;

}

/* create the image */

image = opj_image_create(numcomps, &cmptparm[0], color_space);

if (!image)

return NULL;

/* set image offset and reference grid */

image->x0 = parameters->image_offset_x0;

image->y0 = parameters->image_offset_y0;

image->x1 = !image->x0 ? (image_width - 1) * subsampling_dx + 1 : image->x0 + (image_width - 1) * subsampling_dx + 1;

image->y1 = !image->y0 ? (image_height - 1) * subsampling_dy + 1 : image->y0 + (image_height - 1) * subsampling_dy + 1;

/* set image data */

for (y=0; y < image_height; y++)

{

int index;

if (flip_image)

index = (image_height-y-1)*image_width;

else

index = y*image_width;

if (numcomps==3)

{

for (x=0;x<image_width;x++)

{

unsigned char r,g,b;

fread(&b, 1, 1, f);

fread(&g, 1, 1, f);

fread(&r, 1, 1, f);

image->comps[0].data[index]=r;

image->comps[1].data[index]=g;

image->comps[2].data[index]=b;

index++;

}

}

else if (numcomps==4)

{

for (x=0;x<image_width;x++)

{

unsigned char r,g,b,a;

fread(&b, 1, 1, f);

fread(&g, 1, 1, f);

fread(&r, 1, 1, f);

fread(&a, 1, 1, f);

image->comps[0].data[index]=r;

image->comps[1].data[index]=g;

image->comps[2].data[index]=b;

image->comps[3].data[index]=a;

index++;

}

}

else {

fprintf(stderr, "Currently unsupported bit depth : %s\n", filename);

}

}

return image;

}

int imagetotga(opj_image_t * image, const char *outfile) {

int width, height, bpp, x, y;

bool write_alpha;

int i;

unsigned int alpha_channel;

float r,g,b,a;

unsigned char value;

float scale;

FILE *fdest;

fdest = fopen(outfile, "wb");

if (!fdest) {

fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);

return 1;

}

for (i = 0; i < image->numcomps-1; i++) {

if ((image->comps[0].dx != image->comps[i+1].dx)

||(image->comps[0].dy != image->comps[i+1].dy)

||(image->comps[0].prec != image->comps[i+1].prec)) {

fprintf(stderr, "Unable to create a tga file with such J2K image charateristics.");

return 1;

}

}

width = image->comps[0].w;

height = image->comps[0].h;

// Mono with alpha, or RGB with alpha.

write_alpha = (image->numcomps==2) || (image->numcomps==4);

// Write TGA header

bpp = write_alpha ? 32 : 24;

if (!tga_writeheader(fdest, bpp, width , height, true))

return 1;

alpha_channel = image->numcomps-1;

scale = 255.0f / (float)((1<<image->comps[0].prec)-1);

for (y=0; y < height; y++) {

unsigned int index=y*width;

for (x=0; x < width; x++, index++) {

r = (float)(image->comps[0].data[index]);

if (image->numcomps>2) {

g = (float)(image->comps[1].data[index]);

b = (float)(image->comps[2].data[index]);

}

else {// Greyscale ...

g = r;

b = r;

}

// TGA format writes BGR ...

value = (unsigned char)(b*scale);

fwrite(&value,1,1,fdest);

value = (unsigned char)(g*scale);

fwrite(&value,1,1,fdest);

value = (unsigned char)(r*scale);

fwrite(&value,1,1,fdest);

if (write_alpha) {

a = (float)(image->comps[alpha_channel].data[index]);

value = (unsigned char)(a*scale);

fwrite(&value,1,1,fdest);

}

}

}

return 0;

}

/* -->> -->> -->> -->>

BMP IMAGE FORMAT

<<-- <<-- <<-- <<-- */

/* WORD defines a two byte word */

typedef unsigned short int WORD;

/* DWORD defines a four byte word */

typedef unsigned long int DWORD;

typedef struct {

WORD bfType; /* 'BM' for Bitmap (19776) */

DWORD bfSize; /* Size of the file */

WORD bfReserved1; /* Reserved : 0 */

WORD bfReserved2; /* Reserved : 0 */

DWORD bfOffBits; /* Offset */

} BITMAPFILEHEADER_t;

typedef struct {

DWORD biSize; /* Size of the structure in bytes */

DWORD biWidth; /* Width of the image in pixels */

DWORD biHeight; /* Heigth of the image in pixels */

WORD biPlanes; /* 1 */

WORD biBitCount; /* Number of color bits by pixels */

DWORD biCompression; /* Type of encoding 0: none 1: RLE8 2: RLE4 */

DWORD biSizeImage; /* Size of the image in bytes */

DWORD biXpelsPerMeter; /* Horizontal (X) resolution in pixels/meter */

DWORD biYpelsPerMeter; /* Vertical (Y) resolution in pixels/meter */

DWORD biClrUsed; /* Number of color used in the image (0: ALL) */

DWORD biClrImportant; /* Number of important color (0: ALL) */

} BITMAPINFOHEADER_t;

opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters) {

int subsampling_dx = parameters->subsampling_dx;

int subsampling_dy = parameters->subsampling_dy;

int i, numcomps, w, h;

OPJ_COLOR_SPACE color_space;

opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */

opj_image_t * image = NULL;

FILE *IN;

BITMAPFILEHEADER_t File_h;

BITMAPINFOHEADER_t Info_h;

unsigned char *RGB;

unsigned char *table_R, *table_G, *table_B;

unsigned int j, PAD = 0;

int x, y, index;

int gray_scale = 1, not_end_file = 1;

unsigned int line = 0, col = 0;

unsigned char v, v2;

DWORD W, H;

IN = fopen(filename, "rb");

if (!IN) {

fprintf(stderr, "Failed to open %s for reading !!\n", filename);

return 0;

}

File_h.bfType = getc(IN);

File_h.bfType = (getc(IN) << 8) + File_h.bfType;

if (File_h.bfType != 19778) {

fprintf(stderr,"Error, not a BMP file!\n");

return 0;

} else {

/* FILE HEADER */

/* ------------- */

File_h.bfSize = getc(IN);

File_h.bfSize = (getc(IN) << 8) + File_h.bfSize;

File_h.bfSize = (getc(IN) << 16) + File_h.bfSize;

File_h.bfSize = (getc(IN) << 24) + File_h.bfSize;

File_h.bfReserved1 = getc(IN);

File_h.bfReserved1 = (getc(IN) << 8) + File_h.bfReserved1;

File_h.bfReserved2 = getc(IN);

File_h.bfReserved2 = (getc(IN) << 8) + File_h.bfReserved2;

File_h.bfOffBits = getc(IN);

File_h.bfOffBits = (getc(IN) << 8) + File_h.bfOffBits;

File_h.bfOffBits = (getc(IN) << 16) + File_h.bfOffBits;

File_h.bfOffBits = (getc(IN) << 24) + File_h.bfOffBits;

/* INFO HEADER */

/* ------------- */

Info_h.biSize = getc(IN);

Info_h.biSize = (getc(IN) << 8) + Info_h.biSize;

Info_h.biSize = (getc(IN) << 16) + Info_h.biSize;

Info_h.biSize = (getc(IN) << 24) + Info_h.biSize;

Info_h.biWidth = getc(IN);

Info_h.biWidth = (getc(IN) << 8) + Info_h.biWidth;

Info_h.biWidth = (getc(IN) << 16) + Info_h.biWidth;

Info_h.biWidth = (getc(IN) << 24) + Info_h.biWidth;

w = Info_h.biWidth;

Info_h.biHeight = getc(IN);

Info_h.biHeight = (getc(IN) << 8) + Info_h.biHeight;

Info_h.biHeight = (getc(IN) << 16) + Info_h.biHeight;

Info_h.biHeight = (getc(IN) << 24) + Info_h.biHeight;

h = Info_h.biHeight;

Info_h.biPlanes = getc(IN);

Info_h.biPlanes = (getc(IN) << 8) + Info_h.biPlanes;

Info_h.biBitCount = getc(IN);

Info_h.biBitCount = (getc(IN) << 8) + Info_h.biBitCount;

Info_h.biCompression = getc(IN);

Info_h.biCompression = (getc(IN) << 8) + Info_h.biCompression;

Info_h.biCompression = (getc(IN) << 16) + Info_h.biCompression;

Info_h.biCompression = (getc(IN) << 24) + Info_h.biCompression;

Info_h.biSizeImage = getc(IN);

Info_h.biSizeImage = (getc(IN) << 8) + Info_h.biSizeImage;

Info_h.biSizeImage = (getc(IN) << 16) + Info_h.biSizeImage;

Info_h.biSizeImage = (getc(IN) << 24) + Info_h.biSizeImage;

Info_h.biXpelsPerMeter = getc(IN);

Info_h.biXpelsPerMeter = (getc(IN) << 8) + Info_h.biXpelsPerMeter;

Info_h.biXpelsPerMeter = (getc(IN) << 16) + Info_h.biXpelsPerMeter;

Info_h.biXpelsPerMeter = (getc(IN) << 24) + Info_h.biXpelsPerMeter;

Info_h.biYpelsPerMeter = getc(IN);

Info_h.biYpelsPerMeter = (getc(IN) << 8) + Info_h.biYpelsPerMeter;

Info_h.biYpelsPerMeter = (getc(IN) << 16) + Info_h.biYpelsPerMeter;

Info_h.biYpelsPerMeter = (getc(IN) << 24) + Info_h.biYpelsPerMeter;

Info_h.biClrUsed = getc(IN);

Info_h.biClrUsed = (getc(IN) << 8) + Info_h.biClrUsed;

Info_h.biClrUsed = (getc(IN) << 16) + Info_h.biClrUsed;

Info_h.biClrUsed = (getc(IN) << 24) + Info_h.biClrUsed;

Info_h.biClrImportant = getc(IN);

Info_h.biClrImportant = (getc(IN) << 8) + Info_h.biClrImportant;

Info_h.biClrImportant = (getc(IN) << 16) + Info_h.biClrImportant;

Info_h.biClrImportant = (getc(IN) << 24) + Info_h.biClrImportant;

/* Read the data and store them in the OUT file */

if (Info_h.biBitCount == 24) {

numcomps = 3;

color_space = CLRSPC_SRGB;

/* initialize image components */

memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));

for(i = 0; i < numcomps; i++) {

cmptparm[i].prec = 8;

cmptparm[i].bpp = 8;

cmptparm[i].sgnd = 0;

cmptparm[i].dx = subsampling_dx;

cmptparm[i].dy = subsampling_dy;

cmptparm[i].w = w;

cmptparm[i].h = h;

}

/* create the image */

image = opj_image_create(numcomps, &cmptparm[0], color_space);

if(!image) {

fclose(IN);

return NULL;

}

/* set image offset and reference grid */

image->x0 = parameters->image_offset_x0;

image->y0 = parameters->image_offset_y0;

image->x1 = !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;

image->y1 = !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;

/* set image data */

/* Place the cursor at the beginning of the image information */

fseek(IN, 0, SEEK_SET);

fseek(IN, File_h.bfOffBits, SEEK_SET);

W = Info_h.biWidth;

H = Info_h.biHeight;

/* PAD = 4 - (3 * W) % 4; */

/* PAD = (PAD == 4) ? 0 : PAD; */

PAD = (3 * W) % 4 ? 4 - (3 * W) % 4 : 0;

RGB = (unsigned char *) malloc((3 * W + PAD) * H * sizeof(unsigned char));

fread(RGB, sizeof(unsigned char), (3 * W + PAD) * H, IN);

index = 0;

for(y = 0; y < (int)H; y++) {

unsigned char *scanline = RGB + (3 * W + PAD) * (H - 1 - y);

for(x = 0; x < (int)W; x++) {

unsigned char *pixel = &scanline[3 * x];

image->comps[0].data[index] = pixel[2]; /* R */

image->comps[1].data[index] = pixel[1]; /* G */

image->comps[2].data[index] = pixel[0]; /* B */

index++;

}

}

free(RGB);

} else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) {

table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));

table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));

table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));

for (j = 0; j < Info_h.biClrUsed; j++) {

table_B[j] = getc(IN);

table_G[j] = getc(IN);

table_R[j] = getc(IN);

getc(IN);

if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])

gray_scale = 0;

}

/* Place the cursor at the beginning of the image information */

fseek(IN, 0, SEEK_SET);

fseek(IN, File_h.bfOffBits, SEEK_SET);

W = Info_h.biWidth;

H = Info_h.biHeight;

if (Info_h.biWidth % 2)

W++;

numcomps = gray_scale ? 1 : 3;

color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;

/* initialize image components */

memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));

for(i = 0; i < numcomps; i++) {

cmptparm[i].prec = 8;

cmptparm[i].bpp = 8;

cmptparm[i].sgnd = 0;

cmptparm[i].dx = subsampling_dx;

cmptparm[i].dy = subsampling_dy;

cmptparm[i].w = w;

cmptparm[i].h = h;

}

/* create the image */

image = opj_image_create(numcomps, &cmptparm[0], color_space);

if(!image) {

fclose(IN);

return NULL;

}

/* set image offset and reference grid */

image->x0 = parameters->image_offset_x0;

image->y0 = parameters->image_offset_y0;

image->x1 = !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;

image->y1 = !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;

/* set image data */

RGB = (unsigned char *) malloc(W * H * sizeof(unsigned char));

fread(RGB, sizeof(unsigned char), W * H, IN);

if (gray_scale) {

index = 0;

for (j = 0; j < W * H; j++) {

if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {

image->comps[0].data[index] = table_R[RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)]];

index++;

}

}

} else {

index = 0;

for (j = 0; j < W * H; j++) {

if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) {

unsigned char pixel_index = RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)];

image->comps[0].data[index] = table_R[pixel_index];

image->comps[1].data[index] = table_G[pixel_index];

image->comps[2].data[index] = table_B[pixel_index];

index++;

}

}

}

free(RGB);

free(table_R);

free(table_G);

free(table_B);

} else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) {

table_R = (unsigned char *) malloc(256 * sizeof(unsigned char));

table_G = (unsigned char *) malloc(256 * sizeof(unsigned char));

table_B = (unsigned char *) malloc(256 * sizeof(unsigned char));

for (j = 0; j < Info_h.biClrUsed; j++) {

table_B[j] = getc(IN);

table_G[j] = getc(IN);

table_R[j] = getc(IN);

getc(IN);

if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])

gray_scale = 0;

}

numcomps = gray_scale ? 1 : 3;

color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB;

/* initialize image components */

memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));

for(i = 0; i < numcomps; i++) {

cmptparm[i].prec = 8;

cmptparm[i].bpp = 8;

cmptparm[i].sgnd = 0;

cmptparm[i].dx = subsampling_dx;

cmptparm[i].dy = subsampling_dy;

cmptparm[i].w = w;

cmptparm[i].h = h;

}

/* create the image */

image = opj_image_create(numcomps, &cmptparm[0], color_space);

if(!image) {

fclose(IN);

return NULL;

}

/* set image offset and reference grid */

image->x0 = parameters->image_offset_x0;

image->y0 = parameters->image_offset_y0;

image->x1 = !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;

image->y1 = !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;

/* set image data */

/* Place the cursor at the beginning of the image information */

fseek(IN, 0, SEEK_SET);

fseek(IN, File_h.bfOffBits, SEEK_SET);

RGB = (unsigned char *) malloc(Info_h.biWidth * Info_h.biHeight * sizeof(unsigned char));

while (not_end_file) {

v = getc(IN);

if (v) {

v2 = getc(IN);

for (i = 0; i < (int) v; i++) {

RGB[line * Info_h.biWidth + col] = v2;

col++;

}

} else {

v = getc(IN);

switch (v) {

case 0:

col = 0;

line++;

break;

case 1:

line++;

not_end_file = 0;

break;

case 2:

fprintf(stderr,"No Delta supported\n");

opj_image_destroy(image);

fclose(IN);

return NULL;

default:

for (i = 0; i < v; i++) {

v2 = getc(IN);

RGB[line * Info_h.biWidth + col] = v2;

col++;

}

if (v % 2)

v2 = getc(IN);

break;

}

}

}

if (gray_scale) {

index = 0;

for (line = 0; line < Info_h.biHeight; line++) {

for (col = 0; col < Info_h.biWidth; col++) {

image->comps[0].data[index] = table_R[(int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col]];

index++;

}

}

} else {

index = 0;

for (line = 0; line < Info_h.biHeight; line++) {

for (col = 0; col < Info_h.biWidth; col++) {

unsigned char pixel_index = (int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col];

image->comps[0].data[index] = table_R[pixel_index];

image->comps[1].data[index] = table_G[pixel_index];

image->comps[2].data[index] = table_B[pixel_index];

index++;

}

}

}

free(RGB);

free(table_R);

free(table_G);

free(table_B);

} else {

fprintf(stderr,

"Other system than 24 bits/pixels or 8 bits (no RLE coding) is not yet implemented [%d]\n", Info_h.biBitCount);

}

fclose(IN);

}

return image;

}

int imagetobmp(opj_image_t * image, const char *outfile) {

int w, h;

int i, pad;

FILE *fdest = NULL;

int adjustR, adjustG, adjustB;

if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx

&& image->comps[1].dx == image->comps[2].dx

&& image->comps[0].dy == image->comps[1].dy

&& image->comps[1].dy == image->comps[2].dy

&& image->comps[0].prec == image->comps[1].prec

&& image->comps[1].prec == image->comps[2].prec) {

/* -->> -->> -->> -->>

24 bits color

<<-- <<-- <<-- <<-- */

fdest = fopen(outfile, "wb");

if (!fdest) {

fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);

return 1;

}

w = image->comps[0].w;

h = image->comps[0].h;

fprintf(fdest, "BM");

/* FILE HEADER */

/* ------------- */

fprintf(fdest, "%c%c%c%c",

(unsigned char) (h * w * 3 + 3 * h * (w % 2) + 54) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 8) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 16) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,((54) >> 16) & 0xff, ((54) >> 24) & 0xff);

/* INFO HEADER */

/* ------------- */

fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),

(unsigned char) ((w) >> 8) & 0xff,

(unsigned char) ((w) >> 16) & 0xff,

(unsigned char) ((w) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),

(unsigned char) ((h) >> 8) & 0xff,

(unsigned char) ((h) >> 16) & 0xff,

(unsigned char) ((h) >> 24) & 0xff);

fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);

fprintf(fdest, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) (3 * h * w + 3 * h * (w % 2)) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 8) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 16) & 0xff,

(unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

if (image->comps[0].prec > 8) {

adjustR = image->comps[0].prec - 8;

printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);

}

else

adjustR = 0;

if (image->comps[1].prec > 8) {

adjustG = image->comps[1].prec - 8;

printf("BMP CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);

}

else

adjustG = 0;

if (image->comps[2].prec > 8) {

adjustB = image->comps[2].prec - 8;

printf("BMP CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);

}

else

adjustB = 0;

for (i = 0; i < w * h; i++) {

unsigned char rc, gc, bc;

int r, g, b;

r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];

r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);

rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));

g = image->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];

g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);

gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));

b = image->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];

b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);

bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));

fprintf(fdest, "%c%c%c", bc, gc, rc);

if ((i + 1) % w == 0) {

for (pad = (3 * w) % 4 ? 4 - (3 * w) % 4 : 0; pad > 0; pad--) /* ADD */

fprintf(fdest, "%c", 0);

}

}

fclose(fdest);

} else { /* Gray-scale */

/* -->> -->> -->> -->>

8 bits non code (Gray scale)

<<-- <<-- <<-- <<-- */

fdest = fopen(outfile, "wb");

w = image->comps[0].w;

h = image->comps[0].h;

fprintf(fdest, "BM");

/* FILE HEADER */

/* ------------- */

fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + 54 + 1024 + h * (w % 2)) & 0xff,

(unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 8) & 0xff,

(unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 16) & 0xff,

(unsigned char) ((h * w + 54 + 1024 + w * (w % 2)) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (54 + 1024) & 0xff, ((54 + 1024) >> 8) & 0xff,

((54 + 1024) >> 16) & 0xff,

((54 + 1024) >> 24) & 0xff);

/* INFO HEADER */

/* ------------- */

fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),

(unsigned char) ((w) >> 8) & 0xff,

(unsigned char) ((w) >> 16) & 0xff,

(unsigned char) ((w) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),

(unsigned char) ((h) >> 8) & 0xff,

(unsigned char) ((h) >> 16) & 0xff,

(unsigned char) ((h) >> 24) & 0xff);

fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);

fprintf(fdest, "%c%c", (8) & 0xff, ((8) >> 8) & 0xff);

fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + h * (w % 2)) & 0xff,

(unsigned char) ((h * w + h * (w % 2)) >> 8) & 0xff,

(unsigned char) ((h * w + h * (w % 2)) >> 16) & 0xff,

(unsigned char) ((h * w + h * (w % 2)) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);

fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);

if (image->comps[0].prec > 8) {

adjustR = image->comps[0].prec - 8;

printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);

}else

adjustR = 0;

for (i = 0; i < 256; i++) {

fprintf(fdest, "%c%c%c%c", i, i, i, 0);

}

for (i = 0; i < w * h; i++) {

unsigned char rc;

int r;

r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];

r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);

rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));

fprintf(fdest, "%c", rc);

if ((i + 1) % w == 0) {

for (pad = w % 4 ? 4 - w % 4 : 0; pad > 0; pad--) /* ADD */

fprintf(fdest, "%c", 0);

}

}

fclose(fdest);

}

return 0;

}

/* -->> -->> -->> -->>

PGX IMAGE FORMAT

<<-- <<-- <<-- <<-- */

unsigned char readuchar(FILE * f)

{

unsigned char c1;

fread(&c1, 1, 1, f);

return c1;

}

unsigned short readushort(FILE * f, int bigendian)

{

unsigned char c1, c2;

fread(&c1, 1, 1, f);

fread(&c2, 1, 1, f);

if (bigendian)

return (c1 << 8) + c2;

else

return (c2 << 8) + c1;

}

unsigned int readuint(FILE * f, int bigendian)

{

unsigned char c1, c2, c3, c4;

fread(&c1, 1, 1, f);

fread(&c2, 1, 1, f);

fread(&c3, 1, 1, f);

fread(&c4, 1, 1, f);

if (bigendian)

return (c1 << 24) + (c2 << 16) + (c3 << 8) + c4;

else

return (c4 << 24) + (c3 << 16) + (c2 << 8) + c1;