0,0 → 1,2686 |
/* |
* 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; |
} |
|
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; |
} |
|
#ifdef HAVE_LIBTIFF |
/* -->> -->> -->> -->> |
|
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; |
tsize_t 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; |
} |
(void)TIFFWriteEncodedStrip(tif, strip, (void*)buf, strip_size); |
} |
_TIFFfree((void*)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; |
tsize_t 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; |
} |
(void)TIFFWriteEncodedStrip(tif, strip, (void*)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; |
} |
|
#endif /* HAVE_LIBTIFF */ |
|
/* -->> -->> -->> -->> |
|
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; |
} |
|
#ifdef HAVE_LIBPNG |
|
#define PNG_MAGIC "\x89PNG\x0d\x0a\x1a\x0a" |
#define MAGIC_SIZE 8 |
/* PNG allows bits per sample: 1, 2, 4, 8, 16 */ |
|
opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params) |
{ |
png_structp png; |
png_infop info; |
double gamma, display_exponent; |
int bit_depth, interlace_type,compression_type, filter_type; |
int unit; |
png_uint_32 resx, resy; |
unsigned int i, j; |
png_uint_32 width, height; |
int color_type, has_alpha, is16; |
unsigned char *s; |
FILE *reader; |
unsigned char **rows; |
/* 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; |
unsigned char sigbuf[8]; |
|
if((reader = fopen(read_idf, "rb")) == NULL) |
{ |
fprintf(stderr,"pngtoimage: can not open %s\n",read_idf); |
return NULL; |
} |
image = NULL; png = NULL; rows = NULL; |
|
if(fread(sigbuf, 1, MAGIC_SIZE, reader) != MAGIC_SIZE |
|| memcmp(sigbuf, PNG_MAGIC, MAGIC_SIZE) != 0) |
{ |
fprintf(stderr,"pngtoimage: %s is no valid PNG file\n",read_idf); |
goto fin; |
} |
/* 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_set_sig_bytes(png, MAGIC_SIZE); |
|
png_read_info(png, info); |
|
if(png_get_IHDR(png, info, &width, &height, |
&bit_depth, &color_type, &interlace_type, |
&compression_type, &filter_type) == 0) |
goto fin; |
|
/* png_set_expand(): |
* expand paletted images to RGB, expand grayscale images of |
* less than 8-bit depth to 8-bit depth, and expand tRNS chunks |
* to alpha channels. |
*/ |
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); |
|
is16 = (bit_depth == 16); |
|
/* 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); |
|
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); |
|
nr_comp = 3 + has_alpha; |
|
bit_depth = png_get_bit_depth(png, info); |
|
rows = (unsigned char**)calloc(height+1, sizeof(unsigned char*)); |
for(i = 0; i < height; ++i) |
rows[i] = (unsigned char*)malloc(png_get_rowbytes(png,info)); |
|
png_read_image(png, rows); |
|
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 = bit_depth; |
/* bits_per_pixel: 8 or 16 */ |
cmptparm[i].bpp = bit_depth; |
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 = image->x0 + (width - 1) * sub_dx + 1 + image->x0; |
image->y1 = image->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; |
|
for(i = 0; i < height; ++i) |
{ |
s = rows[i]; |
|
for(j = 0; j < width; ++j) |
{ |
if(is16) |
{ |
*r++ = s[0]<<8|s[1]; s += 2; |
|
*g++ = s[0]<<8|s[1]; s += 2; |
|
*b++ = s[0]<<8|s[1]; s += 2; |
|
if(has_alpha) { *a++ = s[0]<<8|s[1]; s += 2; } |
|
continue; |
} |
*r++ = *s++; *g++ = *s++; *b++ = *s++; |
|
if(has_alpha) *a++ = *s++; |
} |
} |
fin: |
if(rows) |
{ |
for(i = 0; i < height; ++i) |
free(rows[i]); |
free(rows); |
} |
if(png) |
png_destroy_read_struct(&png, &info, NULL); |
|
fclose(reader); |
|
return image; |
|
}/* pngtoimage() */ |
|
int imagetopng(opj_image_t * image, const char *write_idf) |
{ |
FILE *writer; |
png_structp png; |
png_infop info; |
int *red, *green, *blue, *alpha; |
unsigned char *row_buf, *d; |
int has_alpha, width, height, nr_comp, color_type; |
int adjustR, adjustG, adjustB, x, y, fails, is16, force16; |
int opj_prec, prec, ushift, dshift; |
unsigned short mask = 0xffff; |
png_color_8 sig_bit; |
|
is16 = force16 = ushift = dshift = 0; fails = 1; |
prec = opj_prec = image->comps[0].prec; |
|
if(prec > 8 && prec < 16) |
{ |
prec = 16; force16 = 1; |
} |
if(prec != 1 && prec != 2 && prec != 4 && prec != 8 && prec != 16) |
{ |
fprintf(stderr,"imagetopng: can not create %s" |
"\n\twrong bit_depth %d\n", write_idf, prec); |
return fails; |
} |
writer = fopen(write_idf, "wb"); |
|
if(writer == NULL) return fails; |
|
info = NULL; has_alpha = 0; |
|
/* 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 = png_create_write_struct(PNG_LIBPNG_VER_STRING, |
NULL, NULL, NULL); |
/*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */ |
|
if(png == NULL) goto fin; |
|
/* Allocate/initialize the image information data. REQUIRED |
*/ |
info = png_create_info_struct(png); |
|
if(info == 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))) goto fin; |
|
/* I/O initialization functions is REQUIRED |
*/ |
png_init_io(png, 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, Z_BEST_COMPRESSION); |
|
if(prec == 16) mask = 0xffff; |
else |
if(prec == 8) mask = 0x00ff; |
else |
if(prec == 4) mask = 0x000f; |
else |
if(prec == 2) mask = 0x0003; |
else |
if(prec == 1) mask = 0x0001; |
|
nr_comp = image->numcomps; |
|
if(nr_comp >= 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) |
{ |
int v; |
|
has_alpha = (nr_comp > 3); |
|
is16 = (prec == 16); |
|
width = image->comps[0].w; |
height = image->comps[0].h; |
|
red = image->comps[0].data; |
green = image->comps[1].data; |
blue = image->comps[2].data; |
|
sig_bit.red = sig_bit.green = sig_bit.blue = prec; |
|
if(has_alpha) |
{ |
sig_bit.alpha = prec; |
alpha = image->comps[3].data; |
color_type = PNG_COLOR_TYPE_RGB_ALPHA; |
} |
else |
{ |
sig_bit.alpha = 0; alpha = NULL; |
color_type = PNG_COLOR_TYPE_RGB; |
} |
png_set_sBIT(png, info, &sig_bit); |
|
png_set_IHDR(png, info, width, height, prec, |
color_type, |
PNG_INTERLACE_NONE, |
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); |
|
/*=============================*/ |
png_write_info(png, info); |
/*=============================*/ |
if(opj_prec < 8) |
{ |
png_set_packing(png); |
} |
if(force16) |
{ |
ushift = 16 - opj_prec; dshift = opj_prec - ushift; |
} |
adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); |
adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0); |
adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0); |
|
row_buf = (unsigned char*)malloc(width * nr_comp * 2); |
|
for(y = 0; y < height; ++y) |
{ |
d = row_buf; |
|
for(x = 0; x < width; ++x) |
{ |
if(is16) |
{ |
/* Network byte order */ |
v = *red + adjustR; ++red; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; |
|
v = *green + adjustG; ++green; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; |
|
v = *blue + adjustB; ++blue; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; |
|
if(has_alpha) |
{ |
v = *alpha++; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; |
} |
continue; |
} |
*d++ = (unsigned char)((*red + adjustR) & mask); ++red; |
*d++ = (unsigned char)((*green + adjustG) & mask); ++green; |
*d++ = (unsigned char)((*blue + adjustB) & mask); ++blue; |
|
if(has_alpha) |
{ |
*d++ = (unsigned char)(*alpha & mask); ++alpha; |
} |
} /* for(x) */ |
|
png_write_row(png, row_buf); |
|
} /* for(y) */ |
free(row_buf); |
|
}/* nr_comp >= 3 */ |
else |
if(nr_comp == 1 /* GRAY */ |
|| ( nr_comp == 2 /* GRAY_ALPHA */ |
&& image->comps[0].dx == image->comps[1].dx |
&& image->comps[0].dy == image->comps[1].dy |
&& image->comps[0].prec == image->comps[1].prec)) |
{ |
int v; |
|
red = image->comps[0].data; |
|
if(force16) |
{ |
ushift = 16 - opj_prec; dshift = opj_prec - ushift; |
} |
|
sig_bit.gray = prec; |
sig_bit.red = sig_bit.green = sig_bit.blue = sig_bit.alpha = 0; |
alpha = NULL; |
color_type = PNG_COLOR_TYPE_GRAY; |
|
if(nr_comp == 2) |
{ |
has_alpha = 1; sig_bit.alpha = prec; |
alpha = image->comps[1].data; |
color_type = PNG_COLOR_TYPE_GRAY_ALPHA; |
} |
width = image->comps[0].w; |
height = image->comps[0].h; |
|
png_set_IHDR(png, info, width, height, sig_bit.gray, |
color_type, |
PNG_INTERLACE_NONE, |
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); |
|
png_set_sBIT(png, info, &sig_bit); |
/*=============================*/ |
png_write_info(png, info); |
/*=============================*/ |
adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); |
|
if(opj_prec < 8) |
{ |
png_set_packing(png); |
} |
|
if(prec > 8) |
{ |
/* Network byte order */ |
|
|
row_buf = (unsigned char*) |
malloc(width * nr_comp * sizeof(unsigned short)); |
|
for(y = 0; y < height; ++y) |
{ |
d = row_buf; |
|
for(x = 0; x < width; ++x) |
{ |
v = *red + adjustR; ++red; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)(v & 0xff); |
|
if(has_alpha) |
{ |
v = *alpha++; |
|
if(force16) { v = (v<<ushift) + (v>>dshift); } |
|
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)(v & 0xff); |
} |
}/* for(x) */ |
png_write_row(png, row_buf); |
|
} /* for(y) */ |
free(row_buf); |
} |
else /* prec <= 8 */ |
{ |
row_buf = (unsigned char*)calloc(width, nr_comp * 2); |
|
for(y = 0; y < height; ++y) |
{ |
d = row_buf; |
|
for(x = 0; x < width; ++x) |
{ |
*d++ = (unsigned char)((*red + adjustR) & mask); ++red; |
|
if(has_alpha) |
{ |
*d++ = (unsigned char)(*alpha & mask); ++alpha; |
} |
}/* for(x) */ |
|
png_write_row(png, row_buf); |
|
} /* for(y) */ |
free(row_buf); |
} |
} |
else |
{ |
fprintf(stderr,"imagetopng: can not create %s\n",write_idf); |
goto fin; |
} |
png_write_end(png, info); |
|
fails = 0; |
|
fin: |
|
if(png) |
{ |
png_destroy_write_struct(&png, &info); |
} |
fclose(writer); |
|
if(fails) remove(write_idf); |
|
return fails; |
}/* imagetopng() */ |
#endif /* HAVE_LIBPNG */ |
|