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openjpeg/codec/convert.c

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/*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
#include "tiffio.h"
#include "png.h"
#else
#include <tiffio.h>
#include <png.h>
#endif /* WIN32 */
#include "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
{
uint8 id_length; /* Image id field length */
uint8 colour_map_type; /* Colour map type */
uint8 image_type; /* Image type */
/*
** Colour map specification
*/
uint16 colour_map_index; /* First entry index */
uint16 colour_map_length; /* Colour map length */
uint8 colour_map_entry_size; /* Colour map entry size */
/*
** Image specification
*/
uint16 x_origin; /* x origin of image */
uint16 y_origin; /* u origin of image */
uint16 image_width; /* Image width */
uint16 image_height; /* Image height */
uint8 pixel_depth; /* Pixel depth */
uint8 image_desc; /* Image descriptor */
} tga_header;
#pragma pack(pop) // Return to normal structure packing alignment.
int tga_readheader(FILE *fp, uint32 *bits_per_pixel, uint32 *width, uint32 *height, int *flip_image)
{
int palette_size;
tga_header tga ;
if (!bits_per_pixel || !width || !height || !flip_image)
return 0;
// Read TGA header
fread((uint8*)&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)
{
uint8 *id = (uint8 *) 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((uint8*)&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;
uint32 image_width, image_height, pixel_bit_depth;
uint32 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++)
{
uint8 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++)
{
uint8 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;
uint32 alpha_channel;
float r,g,b,a;
uint8 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++) {
uint32 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 = (uint8)(b*scale);
fwrite(&value,1,1,fdest);
value = (uint8)(g*scale);
fwrite(&value,1,1,fdest);
value = (uint8)(r*scale);
fwrite(&value,1,1,fdest);
if (write_alpha) {
a = (float)(image->comps[alpha_channel].data[index]);
value = (uint8)(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;
}
opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters) {
FILE *f = NULL;
int w, h, prec;
int i, numcomps, max;
OPJ_COLOR_SPACE color_space;
opj_image_cmptparm_t cmptparm; /* maximum of 1 component */
opj_image_t * image = NULL;
char endian1,endian2,sign;
char signtmp[32];
char temp[32];
int bigendian;
opj_image_comp_t *comp = NULL;
numcomps = 1;
color_space = CLRSPC_GRAY;
memset(&cmptparm, 0, sizeof(opj_image_cmptparm_t));
max = 0;
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "Failed to open %s for reading !\n", filename);
return NULL;
}
fseek(f, 0, SEEK_SET);
fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d",temp,&endian1,&endian2,signtmp,&prec,temp,&w,temp,&h);
i=0;
sign='+';
while (signtmp[i]!='\0') {
if (signtmp[i]=='-') sign='-';
i++;
}
fgetc(f);
if (endian1=='M' && endian2=='L') {
bigendian = 1;
} else if (endian2=='M' && endian1=='L') {
bigendian = 0;
} else {
fprintf(stderr, "Bad pgx header, please check input file\n");
return NULL;
}
/* initialize image component */
cmptparm.x0 = parameters->image_offset_x0;
cmptparm.y0 = parameters->image_offset_y0;
cmptparm.w = !cmptparm.x0 ? (w - 1) * parameters->subsampling_dx + 1 : cmptparm.x0 + (w - 1) * parameters->subsampling_dx + 1;
cmptparm.h = !cmptparm.y0 ? (h - 1) * parameters->subsampling_dy + 1 : cmptparm.y0 + (h - 1) * parameters->subsampling_dy + 1;
if (sign == '-') {
cmptparm.sgnd = 1;
} else {
cmptparm.sgnd = 0;
}
cmptparm.prec = prec;
cmptparm.bpp = prec;
cmptparm.dx = parameters->subsampling_dx;
cmptparm.dy = parameters->subsampling_dy;
/* create the image */
image = opj_image_create(numcomps, &cmptparm, color_space);
if(!image) {
fclose(f);
return NULL;
}
/* set image offset and reference grid */
image->x0 = cmptparm.x0;
image->y0 = cmptparm.x0;
image->x1 = cmptparm.w;
image->y1 = cmptparm.h;
/* set image data */
comp = &image->comps[0];
for (i = 0; i < w * h; i++) {
int v;
if (comp->prec <= 8) {
if (!comp->sgnd) {
v = readuchar(f);
} else {
v = (char) readuchar(f);
}
} else if (comp->prec <= 16) {
if (!comp->sgnd) {
v = readushort(f, bigendian);
} else {
v = (short) readushort(f, bigendian);
}
} else {
if (!comp->sgnd) {
v = readuint(f, bigendian);
} else {
v = (int) readuint(f, bigendian);
}
}
if (v > max)
max = v;
comp->data[i] = v;
}
fclose(f);
comp->bpp = int_floorlog2(max) + 1;
return image;
}
int imagetopgx(opj_image_t * image, const char *outfile) {
int w, h;
int i, j, compno;
FILE *fdest = NULL;
for (compno = 0; compno < image->numcomps; compno++) {
opj_image_comp_t *comp = &image->comps[compno];
char bname[256]; /* buffer for name */
char *name = bname; /* pointer */
int nbytes = 0;
const size_t olen = strlen(outfile);
const size_t dotpos = olen - 4;
const size_t total = dotpos + 1 + 1 + 4; /* '-' + '[1-3]' + '.pgx' */
if( outfile[dotpos] != '.' ) {
/* `pgx` was recognized but there is no dot at expected position */
fprintf(stderr, "ERROR -> Impossible happen." );
return 1;
}
if( total > 256 ) {
name = (char*)malloc(total+1);
}
strncpy(name, outfile, dotpos);
if (image->numcomps > 1) {
sprintf(name+dotpos, "-%d.pgx", compno);
} else {
strcpy(name+dotpos, ".pgx");
}
fdest = fopen(name, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
return 1;
}
/* dont need name anymore */
if( total > 256 ) {
free(name);
}
w = image->comps[compno].w;
h = image->comps[compno].h;
fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, w, h);
if (comp->prec <= 8) {
nbytes = 1;
} else if (comp->prec <= 16) {
nbytes = 2;
} else {
nbytes = 4;
}
for (i = 0; i < w * h; i++) {
int v = image->comps[compno].data[i];
for (j = nbytes - 1; j >= 0; j--) {
char byte = (char) (v >> (j * 8));
fwrite(&byte, 1, 1, fdest);
}
}
fclose(fdest);
}
return 0;
}
/* -->> -->> -->> -->>
PNM IMAGE FORMAT
<<-- <<-- <<-- <<-- */
opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
FILE *f = NULL;
int i, compno, numcomps, w, h;
OPJ_COLOR_SPACE color_space;
opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */
opj_image_t * image = NULL;
char value;
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "Failed to open %s for reading !!\n", filename);
return 0;
}
if (fgetc(f) != 'P')
return 0;
value = fgetc(f);
switch(value) {
case '2': /* greyscale image type */
case '5':
numcomps = 1;
color_space = CLRSPC_GRAY;
break;
case '3': /* RGB image type */
case '6':
numcomps = 3;
color_space = CLRSPC_SRGB;
break;
default:
fclose(f);
return NULL;
}
fgetc(f);
/* skip comments */
while(fgetc(f) == '#') while(fgetc(f) != '\n');
fseek(f, -1, SEEK_CUR);
fscanf(f, "%d %d\n255", &w, &h);
fgetc(f); /* <cr><lf> */
/* 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(f);
return NULL;
}
/* set image offset and reference grid */
image->x0 = parameters->image_offset_x0;
image->y0 = parameters->image_offset_y0;
image->x1 = parameters->image_offset_x0 + (w - 1) * subsampling_dx + 1;
image->y1 = parameters->image_offset_y0 + (h - 1) * subsampling_dy + 1;
/* set image data */
if ((value == '2') || (value == '3')) { /* ASCII */
for (i = 0; i < w * h; i++) {
for(compno = 0; compno < numcomps; compno++) {
unsigned int index = 0;
fscanf(f, "%u", &index);
/* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
image->comps[compno].data[i] = index;
}
}
} else if ((value == '5') || (value == '6')) { /* BINARY */
for (i = 0; i < w * h; i++) {
for(compno = 0; compno < numcomps; compno++) {
unsigned char index = 0;
fread(&index, 1, 1, f);
/* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
image->comps[compno].data[i] = index;
}
}
}
fclose(f);
return image;
}
int imagetopnm(opj_image_t * image, const char *outfile) {
int w, wr, h, hr, max;
int i, compno;
int adjustR, adjustG, adjustB, adjustX;
FILE *fdest = NULL;
char S2;
const char *tmp = outfile;
while (*tmp) {
tmp++;
}
tmp--;
tmp--;
S2 = *tmp;
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
&& S2 !='g' && S2 !='G') {
fdest = fopen(outfile, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return 1;
}
w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
wr = image->comps[0].w;
h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
hr = image->comps[0].h;
max = image->comps[0].prec > 8 ? 255 : (1 << image->comps[0].prec) - 1;
image->comps[0].x0 = int_ceildivpow2(image->comps[0].x0 - int_ceildiv(image->x0, image->comps[0].dx), image->comps[0].factor);
image->comps[0].y0 = int_ceildivpow2(image->comps[0].y0 - int_ceildiv(image->y0, image->comps[0].dy), image->comps[0].factor);
fprintf(fdest, "P6\n%d %d\n%d\n", wr, hr, max);
if (image->comps[0].prec > 8) {
adjustR = image->comps[0].prec - 8;
printf("PNM 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("PNM 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("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
}
else
adjustB = 0;
for (i = 0; i < wr * hr; i++) {
int r, g, b;
unsigned char rc,gc,bc;
r = image->comps[0].data[i];
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[i];
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[i];
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", rc, gc, bc);
}
fclose(fdest);
} else {
int ncomp=(S2=='g' || S2=='G')?1:image->numcomps;
if (image->numcomps > ncomp) {
fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
fprintf(stderr," is written to the file\n");
}
for (compno = 0; compno < ncomp; compno++) {
char name[256];
if (ncomp > 1) {
sprintf(name, "%d.%s", compno, outfile);
} else {
sprintf(name, "%s", outfile);
}
fdest = fopen(name, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
return 1;
}
w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx);
wr = image->comps[compno].w;
h = int_ceildiv(image->y1 - image->y0, image->comps[compno].dy);
hr = image->comps[compno].h;
max = image->comps[compno].prec > 8 ? 255 : (1 << image->comps[compno].prec) - 1;
image->comps[compno].x0 = int_ceildivpow2(image->comps[compno].x0 - int_ceildiv(image->x0, image->comps[compno].dx), image->comps[compno].factor);
image->comps[compno].y0 = int_ceildivpow2(image->comps[compno].y0 - int_ceildiv(image->y0, image->comps[compno].dy), image->comps[compno].factor);
fprintf(fdest, "P5\n%d %d\n%d\n", wr, hr, max);
if (image->comps[compno].prec > 8) {
adjustX = image->comps[0].prec - 8;
printf("PNM CONVERSION: Truncating component %d from %d bits to 8 bits\n",compno, image->comps[compno].prec);
}
else
adjustX = 0;
for (i = 0; i < wr * hr; i++) {
int l;
unsigned char lc;
l = image->comps[compno].data[i];
l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
lc = (unsigned char) ((l >> adjustX)+((l >> (adjustX-1))%2));
fprintf(fdest, "%c", lc);
}
fclose(fdest);
}
}
return 0;
}
/* -->> -->> -->> -->>
TIFF IMAGE FORMAT
<<-- <<-- <<-- <<-- */
typedef struct tiff_infoheader{
DWORD tiWidth; // Width of Image in pixel
DWORD tiHeight; // Height of Image in pixel
DWORD tiPhoto; // Photometric
WORD tiBps; // Bits per sample
WORD tiSf; // Sample Format
WORD tiSpp; // Sample per pixel 1-bilevel,gray scale , 2- RGB
WORD tiPC; // Planar config (1-Interleaved, 2-Planarcomp)
}tiff_infoheader_t;
int imagetotif(opj_image_t * image, const char *outfile) {
int width, height, imgsize;
int bps,index,adjust = 0;
int last_i=0;
TIFF *tif;
tdata_t buf;
tstrip_t strip;
tsize_t strip_size;
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) {
/* -->> -->> -->>
RGB color
<<-- <<-- <<-- */
tif = TIFFOpen(outfile, "wb");
if (!tif) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return 1;
}
width = image->comps[0].w;
height = image->comps[0].h;
imgsize = width * height ;
bps = image->comps[0].prec;
/* Set tags */
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
/* Get a buffer for the data */
strip_size=TIFFStripSize(tif);
buf = _TIFFmalloc(strip_size);
index=0;
adjust = image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0;
for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
unsigned char *dat8;
int i, ssize;
ssize = TIFFStripSize(tif);
dat8 = (unsigned char*)buf;
if (image->comps[0].prec == 8){
for (i=0; i<ssize-2; i+=3) { // 8 bits per pixel
int r = 0,g = 0,b = 0;
if(index < imgsize){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
}
dat8[i+0] = r ; // R
dat8[i+1] = g ; // G
dat8[i+2] = b ; // B
index++;
last_i = i+3;
}else
break;
}
if(last_i < ssize){
for (i=last_i; i<ssize; i+=3) { // 8 bits per pixel
int r = 0,g = 0,b = 0;
if(index < imgsize){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
}
dat8[i+0] = r ; // R
if(i+1 <ssize) dat8[i+1] = g ; else break;// G
if(i+2 <ssize) dat8[i+2] = b ; else break;// B
index++;
}else
break;
}
}
}else if (image->comps[0].prec == 12){
for (i=0; i<ssize-8; i+=9) { // 12 bits per pixel
int r = 0,g = 0,b = 0;
int r1 = 0,g1 = 0,b1 = 0;
if((index < imgsize)&(index+1 < imgsize)){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
r1 = image->comps[0].data[index+1];
g1 = image->comps[1].data[index+1];
b1 = image->comps[2].data[index+1];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
r1 += adjust;
g1 += adjust;
b1 += adjust;
}
dat8[i+0] = (r >> 4);
dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f);
dat8[i+2] = g ;
dat8[i+3] = (b >> 4);
dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
dat8[i+5] = r1;
dat8[i+6] = (g1 >> 4);
dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);
dat8[i+8] = b1;
index+=2;
last_i = i+9;
}else
break;
}
if(last_i < ssize){
for (i= last_i; i<ssize; i+=9) { // 12 bits per pixel
int r = 0,g = 0,b = 0;
int r1 = 0,g1 = 0,b1 = 0;
if((index < imgsize)&(index+1 < imgsize)){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
r1 = image->comps[0].data[index+1];
g1 = image->comps[1].data[index+1];
b1 = image->comps[2].data[index+1];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
r1 += adjust;
g1 += adjust;
b1 += adjust;
}
dat8[i+0] = (r >> 4);
if(i+1 <ssize) dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f); else break;
if(i+2 <ssize) dat8[i+2] = g ; else break;
if(i+3 <ssize) dat8[i+3] = (b >> 4); else break;
if(i+4 <ssize) dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);else break;
if(i+5 <ssize) dat8[i+5] = r1; else break;
if(i+6 <ssize) dat8[i+6] = (g1 >> 4); else break;
if(i+7 <ssize) dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);else break;
if(i+8 <ssize) dat8[i+8] = b1; else break;
index+=2;
}else
break;
}
}
}else if (image->comps[0].prec == 16){
for (i=0 ; i<ssize-5 ; i+=6) { // 16 bits per pixel
int r = 0,g = 0,b = 0;
if(index < imgsize){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
}
dat8[i+0] = r;//LSB
dat8[i+1] = (r >> 8);//MSB
dat8[i+2] = g;
dat8[i+3] = (g >> 8);
dat8[i+4] = b;
dat8[i+5] = (b >> 8);
index++;
last_i = i+6;
}else
break;
}
if(last_i < ssize){
for (i=0 ; i<ssize ; i+=6) { // 16 bits per pixel
int r = 0,g = 0,b = 0;
if(index < imgsize){
r = image->comps[0].data[index];
g = image->comps[1].data[index];
b = image->comps[2].data[index];
if (image->comps[0].sgnd){
r += adjust;
g += adjust;
b += adjust;
}
dat8[i+0] = r;//LSB
if(i+1 <ssize) dat8[i+1] = (r >> 8);else break;//MSB
if(i+2 <ssize) dat8[i+2] = g; else break;
if(i+3 <ssize) dat8[i+3] = (g >> 8);else break;
if(i+4 <ssize) dat8[i+4] = b; else break;
if(i+5 <ssize) dat8[i+5] = (b >> 8);else break;
index++;
}else
break;
}
}
}else{
fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
fprintf(stderr,"Aborting\n");
return 1;
}
TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
}
_TIFFfree(buf);
TIFFClose(tif);
}else if (image->numcomps == 1){
/* -->> -->> -->>
Black and White
<<-- <<-- <<-- */
tif = TIFFOpen(outfile, "wb");
if (!tif) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return 1;
}
width = image->comps[0].w;
height = image->comps[0].h;
imgsize = width * height;
bps = image->comps[0].prec;
/* Set tags */
TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
/* Get a buffer for the data */
strip_size = TIFFStripSize(tif);
buf = _TIFFmalloc(strip_size);
index = 0;
for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
unsigned char *dat8;
int i;
dat8 = (unsigned char*)buf;
if (image->comps[0].prec == 8){
for (i=0; i<TIFFStripSize(tif); i+=1) { // 8 bits per pixel
if(index < imgsize){
int r = 0;
r = image->comps[0].data[index];
if (image->comps[0].sgnd){
r += adjust;
}
dat8[i+0] = r;
index++;
}else
break;
}
}else if (image->comps[0].prec == 12){
for (i = 0; i<TIFFStripSize(tif); i+=3) { // 12 bits per pixel
if(index < imgsize){
int r = 0, r1 = 0;
r = image->comps[0].data[index];
r1 = image->comps[0].data[index+1];
if (image->comps[0].sgnd){
r += adjust;
r1 += adjust;
}
dat8[i+0] = (r >> 4);
dat8[i+1] = ((r & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
dat8[i+2] = r1 ;
index+=2;
}else
break;
}
}else if (image->comps[0].prec == 16){
for (i=0; i<TIFFStripSize(tif); i+=2) { // 16 bits per pixel
if(index < imgsize){
int r = 0;
r = image->comps[0].data[index];
if (image->comps[0].sgnd){
r += adjust;
}
dat8[i+0] = r;
dat8[i+1] = r >> 8;
index++;
}else
break;
}
}else{
fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
fprintf(stderr,"Aborting\n");
return 1;
}
TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
}
_TIFFfree(buf);
TIFFClose(tif);
}else{
fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
fprintf(stderr,"Aborting\n");
return 1;
}
return 0;
}
opj_image_t* tiftoimage(const char *filename, opj_cparameters_t *parameters)
{
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
TIFF *tif;
tiff_infoheader_t Info;
tdata_t buf;
tstrip_t strip;
tsize_t strip_size;
int j, numcomps, w, h,index;
OPJ_COLOR_SPACE color_space;
opj_image_cmptparm_t cmptparm[3];
opj_image_t * image = NULL;
int imgsize = 0;
tif = TIFFOpen(filename, "r");
if (!tif) {
fprintf(stderr, "Failed to open %s for reading\n", filename);
return 0;
}
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &Info.tiWidth);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &Info.tiHeight);
TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &Info.tiBps);
TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &Info.tiSf);
TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &Info.tiSpp);
Info.tiPhoto = 0;
TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &Info.tiPhoto);
TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &Info.tiPC);
w= Info.tiWidth;
h= Info.tiHeight;
if (Info.tiPhoto == 2) {
/* -->> -->> -->>
RGB color
<<-- <<-- <<-- */
numcomps = 3;
color_space = CLRSPC_SRGB;
/* initialize image components*/
memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
for(j = 0; j < numcomps; j++) {
if (parameters->cp_cinema) {
cmptparm[j].prec = 12;
cmptparm[j].bpp = 12;
}else{
cmptparm[j].prec = Info.tiBps;
cmptparm[j].bpp = Info.tiBps;
}
cmptparm[j].sgnd = 0;
cmptparm[j].dx = subsampling_dx;
cmptparm[j].dy = subsampling_dy;
cmptparm[j].w = w;
cmptparm[j].h = h;
}
/* create the image*/
image = opj_image_create(numcomps, &cmptparm[0], color_space);
if(!image) {
TIFFClose(tif);
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;
buf = _TIFFmalloc(TIFFStripSize(tif));
strip_size=0;
strip_size=TIFFStripSize(tif);
index = 0;
imgsize = image->comps[0].w * image->comps[0].h ;
/* Read the Image components*/
for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
unsigned char *dat8;
int i, ssize;
ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
dat8 = (unsigned char*)buf;
if (Info.tiBps==12){
for (i=0; i<ssize; i+=9) { /*12 bits per pixel*/
if((index < imgsize)&(index+1 < imgsize)){
image->comps[0].data[index] = ( dat8[i+0]<<4 ) |(dat8[i+1]>>4);
image->comps[1].data[index] = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
image->comps[2].data[index] = ( dat8[i+3]<<4) |(dat8[i+4]>>4);
image->comps[0].data[index+1] = ((dat8[i+4]& 0x0f)<< 8) | dat8[i+5];
image->comps[1].data[index+1] = ( dat8[i+6] <<4) |(dat8[i+7]>>4);
image->comps[2].data[index+1] = ((dat8[i+7]& 0x0f)<< 8) | dat8[i+8];
index+=2;
}else
break;
}
}
else if( Info.tiBps==16){
for (i=0; i<ssize; i+=6) { /* 16 bits per pixel */
if(index < imgsize){
image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0]; // R
image->comps[1].data[index] = ( dat8[i+3] << 8 ) | dat8[i+2]; // G
image->comps[2].data[index] = ( dat8[i+5] << 8 ) | dat8[i+4]; // B
if(parameters->cp_cinema){/* Rounding to 12 bits*/
image->comps[0].data[index] = (image->comps[0].data[index] + 0x08) >> 4 ;
image->comps[1].data[index] = (image->comps[1].data[index] + 0x08) >> 4 ;
image->comps[2].data[index] = (image->comps[2].data[index] + 0x08) >> 4 ;
}
index++;
}else
break;
}
}
else if ( Info.tiBps==8){
for (i=0; i<ssize; i+=3) { /* 8 bits per pixel */
if(index < imgsize){
image->comps[0].data[index] = dat8[i+0];// R
image->comps[1].data[index] = dat8[i+1];// G
image->comps[2].data[index] = dat8[i+2];// B
if(parameters->cp_cinema){/* Rounding to 12 bits*/
image->comps[0].data[index] = image->comps[0].data[index] << 4 ;
image->comps[1].data[index] = image->comps[1].data[index] << 4 ;
image->comps[2].data[index] = image->comps[2].data[index] << 4 ;
}
index++;
}else
break;
}
}
else{
fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
fprintf(stderr,"Aborting\n");
return NULL;
}
}
_TIFFfree(buf);
TIFFClose(tif);
}else if(Info.tiPhoto == 1) {
/* -->> -->> -->>
Black and White
<<-- <<-- <<-- */
numcomps = 1;
color_space = CLRSPC_GRAY;
/* initialize image components*/
memset(&cmptparm[0], 0, sizeof(opj_image_cmptparm_t));
cmptparm[0].prec = Info.tiBps;
cmptparm[0].bpp = Info.tiBps;
cmptparm[0].sgnd = 0;
cmptparm[0].dx = subsampling_dx;
cmptparm[0].dy = subsampling_dy;
cmptparm[0].w = w;
cmptparm[0].h = h;
/* create the image*/
image = opj_image_create(numcomps, &cmptparm[0], color_space);
if(!image) {
TIFFClose(tif);
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;
buf = _TIFFmalloc(TIFFStripSize(tif));
strip_size = 0;
strip_size = TIFFStripSize(tif);
index = 0;
imgsize = image->comps[0].w * image->comps[0].h ;
/* Read the Image components*/
for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
unsigned char *dat8;
int i, ssize;
ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
dat8 = (unsigned char*)buf;
if (Info.tiBps==12){
for (i=0; i<ssize; i+=3) { /* 12 bits per pixel*/
if(index < imgsize){
image->comps[0].data[index] = ( dat8[i+0]<<4 ) |(dat8[i+1]>>4) ;
image->comps[0].data[index+1] = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
index+=2;
}else
break;
}
}
else if( Info.tiBps==16){
for (i=0; i<ssize; i+=2) { /* 16 bits per pixel */
if(index < imgsize){
image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0];
index++;
}else
break;
}
}
else if ( Info.tiBps==8){
for (i=0; i<ssize; i+=1) { /* 8 bits per pixel */
if(index < imgsize){
image->comps[0].data[index] = dat8[i+0];
index++;
}else
break;
}
}
else{
fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
fprintf(stderr,"Aborting\n");
return NULL;
}
}
_TIFFfree(buf);
TIFFClose(tif);
}else{
fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
fprintf(stderr,"Aborting\n");
return NULL;
}
return image;
}
/* -->> -->> -->> -->>
RAW IMAGE FORMAT
<<-- <<-- <<-- <<-- */
opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
FILE *f = NULL;
int i, compno, numcomps, w, h;
OPJ_COLOR_SPACE color_space;
opj_image_cmptparm_t *cmptparm;
opj_image_t * image = NULL;
unsigned short ch;
if((! (raw_cp->rawWidth & raw_cp->rawHeight & raw_cp->rawComp & raw_cp->rawBitDepth)) == 0)
{
fprintf(stderr,"\nError: invalid raw image parameters\n");
fprintf(stderr,"Please use the Format option -F:\n");
fprintf(stderr,"-F rawWidth,rawHeight,rawComp,rawBitDepth,s/u (Signed/Unsigned)\n");
fprintf(stderr,"Example: -i lena.raw -o lena.j2k -F 512,512,3,8,u\n");
fprintf(stderr,"Aborting\n");
return NULL;
}
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "Failed to open %s for reading !!\n", filename);
fprintf(stderr,"Aborting\n");
return NULL;
}
numcomps = raw_cp->rawComp;
color_space = CLRSPC_SRGB;
w = raw_cp->rawWidth;
h = raw_cp->rawHeight;
cmptparm = (opj_image_cmptparm_t*) malloc(numcomps * sizeof(opj_image_cmptparm_t));
/* initialize image components */
memset(&cmptparm[0], 0, numcomps * sizeof(opj_image_cmptparm_t));
for(i = 0; i < numcomps; i++) {
cmptparm[i].prec = raw_cp->rawBitDepth;
cmptparm[i].bpp = raw_cp->rawBitDepth;
cmptparm[i].sgnd = raw_cp->rawSigned;
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(f);
return NULL;
}
/* set image offset and reference grid */
image->x0 = parameters->image_offset_x0;
image->y0 = parameters->image_offset_y0;
image->x1 = parameters->image_offset_x0 + (w - 1) * subsampling_dx + 1;
image->y1 = parameters->image_offset_y0 + (h - 1) * subsampling_dy + 1;
if(raw_cp->rawBitDepth <= 8)
{
unsigned char value = 0;
for(compno = 0; compno < numcomps; compno++) {
for (i = 0; i < w * h; i++) {
if (!fread(&value, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
return NULL;
}
image->comps[compno].data[i] = raw_cp->rawSigned?(char)value:value;
}
}
}
else if(raw_cp->rawBitDepth <= 16)
{
unsigned short value;
for(compno = 0; compno < numcomps; compno++) {
for (i = 0; i < w * h; i++) {
unsigned char temp;
if (!fread(&temp, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
return NULL;
}
value = temp << 8;
if (!fread(&temp, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
return NULL;
}
value += temp;
image->comps[compno].data[i] = raw_cp->rawSigned?(short)value:value;
}
}
}
else {
fprintf(stderr,"OpenJPEG cannot encode raw components with bit depth higher than 16 bits.\n");
return NULL;
}
if (fread(&ch, 1, 1, f)) {
fprintf(stderr,"Warning. End of raw file not reached... processing anyway\n");
}
fclose(f);
return image;
}
int imagetoraw(opj_image_t * image, const char *outfile)
{
FILE *rawFile = NULL;
int compno;
int w, h;
int line, row;
int *ptr;
if((image->numcomps * image->x1 * image->y1) == 0)
{
fprintf(stderr,"\nError: invalid raw image parameters\n");
return 1;
}
rawFile = fopen(outfile, "wb");
if (!rawFile) {
fprintf(stderr, "Failed to open %s for writing !!\n", outfile);
return 1;
}
fprintf(stdout,"Raw image characteristics: %d components\n", image->numcomps);
for(compno = 0; compno < image->numcomps; compno++)
{
fprintf(stdout,"Component %d characteristics: %dx%dx%d %s\n", compno, image->comps[compno].w,
image->comps[compno].h, image->comps[compno].prec, image->comps[compno].sgnd==1 ? "signed": "unsigned");
w = image->comps[compno].w;
h = image->comps[compno].h;
if(image->comps[compno].prec <= 8)
{
if(image->comps[compno].sgnd == 1)
{
signed char curr;
int mask = (1 << image->comps[compno].prec) - 1;
ptr = image->comps[compno].data;
for (line = 0; line < h; line++) {
for(row = 0; row < w; row++) {
curr = (signed char) (*ptr & mask);
fwrite(&curr, sizeof(signed char), 1, rawFile);
ptr++;
}
}
}
else if(image->comps[compno].sgnd == 0)
{
unsigned char curr;
int mask = (1 << image->comps[compno].prec) - 1;
ptr = image->comps[compno].data;
for (line = 0; line < h; line++) {
for(row = 0; row < w; row++) {
curr = (unsigned char) (*ptr & mask);
fwrite(&curr, sizeof(unsigned char), 1, rawFile);
ptr++;
}
}
}
}
else if(image->comps[compno].prec <= 16)
{
if(image->comps[compno].sgnd == 1)
{
signed short int curr;
int mask = (1 << image->comps[compno].prec) - 1;
ptr = image->comps[compno].data;
for (line = 0; line < h; line++) {
for(row = 0; row < w; row++) {
unsigned char temp;
curr = (signed short int) (*ptr & mask);
temp = (unsigned char) (curr >> 8);
fwrite(&temp, 1, 1, rawFile);
temp = (unsigned char) curr;
fwrite(&temp, 1, 1, rawFile);
ptr++;
}
}
}
else if(image->comps[compno].sgnd == 0)
{
unsigned short int curr;
int mask = (1 << image->comps[compno].prec) - 1;
ptr = image->comps[compno].data;
for (line = 0; line < h; line++) {
for(row = 0; row < w; row++) {
unsigned char temp;
curr = (unsigned short int) (*ptr & mask);
temp = (unsigned char) (curr >> 8);
fwrite(&temp, 1, 1, rawFile);
temp = (unsigned char) curr;
fwrite(&temp, 1, 1, rawFile);
ptr++;
}
}
}
}
else if (image->comps[compno].prec <= 32)
{
fprintf(stderr,"More than 16 bits per component no handled yet\n");
return 1;
}
else
{
fprintf(stderr,"Error: invalid precision: %d\n", image->comps[compno].prec);
return 1;
}
}
fclose(rawFile);
return 0;
}
opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params)
#ifdef WIN32
{
printf("Error. PNG format is not yet handled under windows\n");
return NULL;
}
#else
{
png_bytep row;
png_structp png;
png_infop info;
double gamma, display_exponent;
int bit_depth, interlace_type, compression_type, filter_type;
int unit, pass, nr_passes;
png_uint_32 resx, resy;
unsigned int i, max, src_w;
png_uint_32 width, height;
int color_type, has_alpha;
unsigned char *png_buf, *s;
FILE *reader;
/* j2k: */
opj_image_t *image;
opj_image_cmptparm_t cmptparm[4];
int sub_dx, sub_dy;
unsigned int nr_comp;
int *r, *g, *b, *a;
if ((reader = fopen(read_idf, "rb")) == NULL) {
fprintf(stderr, "pngtoimage: can not open %s\n", read_idf);
return NULL;
}
nr_passes = 0;
png_buf = NULL;
/* libpng-VERSION/example.c:
* PC : screen_gamma = 2.2;
* Mac: screen_gamma = 1.7 or 1.0;
*/
display_exponent = 2.2;
if ((png = png_create_read_struct(PNG_LIBPNG_VER_STRING,
NULL, NULL, NULL)) == NULL)
goto fin;
if ((info = png_create_info_struct(png)) == NULL)
goto fin;
if (setjmp(png_jmpbuf(png)))
goto fin;
png_init_io(png, reader);
png_read_info(png, info);
png_get_IHDR(png, info, &width, &height,
&bit_depth, &color_type, &interlace_type,
&compression_type, &filter_type);
if (color_type == PNG_COLOR_TYPE_PALETTE)
png_set_expand(png);
else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
png_set_expand(png);
if (png_get_valid(png, info, PNG_INFO_tRNS))
png_set_expand(png);
if (bit_depth == 16)
png_set_strip_16(png);
/* GRAY => RGB; GRAY_ALPHA => RGBA
*/
if (color_type == PNG_COLOR_TYPE_GRAY
|| color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
png_set_gray_to_rgb(png);
color_type =
(color_type == PNG_COLOR_TYPE_GRAY ? PNG_COLOR_TYPE_RGB :
PNG_COLOR_TYPE_RGB_ALPHA);
}
if (!png_get_gAMA(png, info, &gamma))
gamma = 0.45455;
png_set_gamma(png, display_exponent, gamma);
nr_passes = png_set_interlace_handling(png);
png_read_update_info(png, info);
png_get_pHYs(png, info, &resx, &resy, &unit);
color_type = png_get_color_type(png, info);
has_alpha = (color_type == PNG_COLOR_TYPE_RGB_ALPHA);
if (has_alpha)
nr_comp = 4;
else
nr_comp = 3;
src_w = width * nr_comp;
png_buf = (unsigned char *) malloc(src_w * height);
if (nr_passes == 0)
nr_passes = 1;
for (pass = 0; pass < nr_passes; pass++) {
s = png_buf;
for (i = 0; i < height; i++) {
/* libpng.3:
* If you want the "sparkle" effect, just call png_read_rows() as
* normal, with the third parameter NULL.
*/
png_read_rows(png, &s, NULL, 1);
s += src_w;
}
}
memset(&cmptparm, 0, 4 * sizeof(opj_image_cmptparm_t));
sub_dx = params->subsampling_dx;
sub_dy = params->subsampling_dy;
for (i = 0; i < nr_comp; ++i) {
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = sub_dx;
cmptparm[i].dy = sub_dy;
cmptparm[i].w = width;
cmptparm[i].h = height;
}
image = opj_image_create(nr_comp, &cmptparm[0], CLRSPC_SRGB);
if (image == NULL)
goto fin;
image->x0 = params->image_offset_x0;
image->y0 = params->image_offset_y0;
image->x1 =
params->image_offset_x0 + (width - 1) * sub_dx + 1 + image->x0;
image->y1 =
params->image_offset_y0 + (height - 1) * sub_dy + 1 + image->y0;
r = image->comps[0].data;
g = image->comps[1].data;
b = image->comps[2].data;
a = image->comps[3].data;
s = png_buf;
max = width * height;
for (i = 0; i < max; ++i) {
*r++ = *s++;
*g++ = *s++;
*b++ = *s++;
if (has_alpha)
*a++ = *s++;
}
fin:
if (png)
png_destroy_read_struct(&png, &info, NULL);
if (png_buf)
free(png_buf);
fclose(reader);
return image;
} /* pngtoimage() */
#endif
int imagetopng(opj_image_t * image, const char *write_idf)
#ifdef WIN32
{
printf("Error. PNG format is not yet handled under windows\n");
return -1;
}
#else
{
FILE *writer;
png_structp png_ptr;
png_infop info_ptr;
int *rs, *gs, *bs, *as;
unsigned char *row_buf, *d;
int fails, mono, graya, rgb, rgba;
int width, height, nr_colors, color_type;
int bit_depth, adjust, x, y;
png_color_8 sig_bit;
writer = fopen(write_idf, "wb");
if (writer == NULL)
return 1;
info_ptr = NULL;
fails = 1;
/* Create and initialize the png_struct with the desired error handler
* functions. If you want to use the default stderr and longjump method,
* you can supply NULL for the last three parameters. We also check that
* the library version is compatible with the one used at compile time,
* in case we are using dynamically linked libraries. REQUIRED.
*/
png_ptr =
png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
/*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */
if (png_ptr == NULL)
goto fin;
/* Allocate/initialize the image information data. REQUIRED
*/
info_ptr = png_create_info_struct(png_ptr);
if (info_ptr == NULL)
goto fin;
/* Set error handling. REQUIRED if you are not supplying your own
* error handling functions in the png_create_write_struct() call.
*/
if (setjmp(png_jmpbuf(png_ptr)))
goto fin;
/* I/O initialization functions is REQUIRED
*/
png_init_io(png_ptr, writer);
/* Set the image information here. Width and height are up to 2^31,
* bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on
* the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
* PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
* or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or
* PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
* currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE.
* REQUIRED
*/
png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
mono = graya = rgb = rgba = adjust = 0;
nr_colors = image->numcomps;
width = image->comps[0].w;
height = image->comps[0].h;
rs = image->comps[0].data;
if (nr_colors == 2) {
graya = 1;
color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
sig_bit.gray = image->comps[0].prec;
bit_depth = image->comps[0].prec;
as = image->comps[1].data;
} else if (nr_colors == 3) {
rgb = 1;
color_type = PNG_COLOR_TYPE_RGB;
sig_bit.red = image->comps[0].prec;
sig_bit.green = image->comps[1].prec;
sig_bit.blue = image->comps[2].prec;
bit_depth = image->comps[0].prec;
gs = image->comps[1].data;
bs = image->comps[2].data;
if (image->comps[0].sgnd)
adjust = 1 << (image->comps[0].prec - 1);
} else if (nr_colors == 4) {
rgb = rgba = 1;
color_type = PNG_COLOR_TYPE_RGB_ALPHA;
sig_bit.red = image->comps[0].prec;
sig_bit.green = image->comps[1].prec;
sig_bit.blue = image->comps[2].prec;
sig_bit.alpha = image->comps[3].prec;
bit_depth = image->comps[0].prec;
gs = image->comps[1].data;
bs = image->comps[2].data;
as = image->comps[3].data;
if (image->comps[0].sgnd)
adjust = 1 << (image->comps[0].prec - 1);
} else {
mono = 1;
color_type = PNG_COLOR_TYPE_GRAY;
sig_bit.gray = image->comps[0].prec;
bit_depth = image->comps[0].prec;
}
png_set_sBIT(png_ptr, info_ptr, &sig_bit);
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
color_type,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
#ifdef HIDDEN_CODE
/* Optional gamma chunk is strongly suggested if you have any guess
* as to the correct gamma of the image.
*/
if (gamma > 0.0) {
png_set_gAMA(png_ptr, info_ptr, gamma);
}
#endif /* HIDDEN_CODE */
#ifdef HIDDEN_CODE
if (have_bg) {
png_color_16 background;
background.red = bg_red;
background.green = bg_green;
background.blue = bg_blue;
png_set_bKGD(png_ptr, info_ptr, &background);
}
#endif /* HIDDEN_CODE */
png_write_info(png_ptr, info_ptr);
png_set_packing(png_ptr);
row_buf = (unsigned char *) malloc(width * nr_colors);
for (y = 0; y < height; ++y) {
d = row_buf;
for (x = 0; x < width; ++x) {
if (mono) {
*d++ = (unsigned char) *rs++;
}
if (graya) {
*d++ = (unsigned char) *rs++;
*d++ = (unsigned char) *as++;
} else if (rgb) {
*d++ = (unsigned char) (*rs++ + adjust);
*d++ = (unsigned char) (*gs++ + adjust);
*d++ = (unsigned char) (*bs++ + adjust);
if (rgba)
*d++ = (unsigned char) (*as++ + adjust);
}
} /* for(x) */
png_write_row(png_ptr, row_buf);
} /* for(y) */
png_write_end(png_ptr, info_ptr);
fails = 0;
fin:
if (png_ptr) {
png_destroy_write_struct(&png_ptr, &info_ptr);
}
fclose(writer);
return fails;
}
#endif
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