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openjpeg/src/bin/jp2/convert.c

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/*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, 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_apps_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#ifdef OPJ_HAVE_LIBTIFF
#include <tiffio.h>
#endif /* OPJ_HAVE_LIBTIFF */
#ifdef OPJ_HAVE_LIBPNG
#include <zlib.h>
#include <png.h>
#endif /* OPJ_HAVE_LIBPNG */
#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;
}
/* Component precision scaling */
void clip_component(opj_image_comp_t* component, OPJ_UINT32 precision)
{
OPJ_SIZE_T i;
OPJ_SIZE_T len;
OPJ_UINT32 umax = (OPJ_UINT32)((OPJ_INT32)-1);
len = (OPJ_SIZE_T)component->w * (OPJ_SIZE_T)component->h;
if (precision < 32) {
umax = (1U << precision) - 1U;
}
if (component->sgnd) {
OPJ_INT32* l_data = component->data;
OPJ_INT32 max = (OPJ_INT32)(umax / 2U);
OPJ_INT32 min = -max - 1;
for (i = 0; i < len; ++i) {
if (l_data[i] > max) {
l_data[i] = max;
} else if (l_data[i] < min) {
l_data[i] = min;
}
}
} else {
OPJ_UINT32* l_data = (OPJ_UINT32*)component->data;
for (i = 0; i < len; ++i) {
if (l_data[i] > umax) {
l_data[i] = umax;
}
}
}
component->prec = precision;
}
/* Component precision scaling */
static void scale_component_up(opj_image_comp_t* component, OPJ_UINT32 precision)
{
OPJ_SIZE_T i, len;
len = (OPJ_SIZE_T)component->w * (OPJ_SIZE_T)component->h;
if (component->sgnd) {
OPJ_INT64 newMax = (OPJ_INT64)(1U << (precision - 1));
OPJ_INT64 oldMax = (OPJ_INT64)(1U << (component->prec - 1));
OPJ_INT32* l_data = component->data;
for (i = 0; i < len; ++i) {
l_data[i] = (OPJ_INT32)(((OPJ_INT64)l_data[i] * newMax) / oldMax);
}
} else {
OPJ_UINT64 newMax = (OPJ_UINT64)((1U << precision) - 1U);
OPJ_UINT64 oldMax = (OPJ_UINT64)((1U << component->prec) - 1U);
OPJ_UINT32* l_data = (OPJ_UINT32*)component->data;
for (i = 0; i < len; ++i) {
l_data[i] = (OPJ_UINT32)(((OPJ_UINT64)l_data[i] * newMax) / oldMax);
}
}
component->prec = precision;
}
void scale_component(opj_image_comp_t* component, OPJ_UINT32 precision)
{
int shift;
OPJ_SIZE_T i, len;
if (component->prec == precision) {
return;
}
if (component->prec < precision) {
scale_component_up(component, precision);
return;
}
shift = (int)(component->prec - precision);
len = (OPJ_SIZE_T)component->w * (OPJ_SIZE_T)component->h;
if (component->sgnd) {
OPJ_INT32* l_data = component->data;
for (i = 0; i < len; ++i) {
l_data[i] >>= shift;
}
} else {
OPJ_UINT32* l_data = (OPJ_UINT32*)component->data;
for (i = 0; i < len; ++i) {
l_data[i] >>= shift;
}
}
component->bpp = precision;
component->prec = precision;
}
/* -->> -->> -->> -->>
TGA IMAGE FORMAT
<<-- <<-- <<-- <<-- */
#ifdef INFORMATION_ONLY
/* TGA header definition. */
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 */
};
#endif /* INFORMATION_ONLY */
static unsigned short get_ushort(unsigned short val) {
#ifdef OPJ_BIG_ENDIAN
return( ((val & 0xff) << 8) + (val >> 8) );
#else
return( val );
#endif
}
#define TGA_HEADER_SIZE 18
static int tga_readheader(FILE *fp, unsigned int *bits_per_pixel,
unsigned int *width, unsigned int *height, int *flip_image)
{
int palette_size;
unsigned char *tga ;
unsigned char id_len, /*cmap_type,*/ image_type;
unsigned char pixel_depth, image_desc;
unsigned short /*cmap_index,*/ cmap_len, cmap_entry_size;
unsigned short /*x_origin, y_origin,*/ image_w, image_h;
if (!bits_per_pixel || !width || !height || !flip_image)
return 0;
tga = (unsigned char*)malloc(18);
if ( fread(tga, TGA_HEADER_SIZE, 1, fp) != 1 )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0 ;
}
id_len = (unsigned char)tga[0];
/*cmap_type = (unsigned char)tga[1];*/
image_type = (unsigned char)tga[2];
/*cmap_index = get_ushort(*(unsigned short*)(&tga[3]));*/
cmap_len = get_ushort(*(unsigned short*)(&tga[5]));
cmap_entry_size = (unsigned char)tga[7];
#if 0
x_origin = get_ushort(*(unsigned short*)(&tga[8]));
y_origin = get_ushort(*(unsigned short*)(&tga[10]));
#endif
image_w = get_ushort(*(unsigned short*)(&tga[12]));
image_h = get_ushort(*(unsigned short*)(&tga[14]));
pixel_depth = (unsigned char)tga[16];
image_desc = (unsigned char)tga[17];
free(tga);
*bits_per_pixel = (unsigned int)pixel_depth;
*width = (unsigned int)image_w;
*height = (unsigned int)image_h;
/* Ignore tga identifier, if present ... */
if (id_len)
{
unsigned char *id = (unsigned char *) malloc(id_len);
if ( !fread(id, id_len, 1, fp) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
free(id);
return 0 ;
}
free(id);
}
/* Test for compressed formats ... not yet supported ...
// Note :- 9 - RLE encoded palettized.
// 10 - RLE encoded RGB. */
if (image_type > 8)
{
fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n");
return 0 ;
}
*flip_image = !(image_desc & 32);
/* Palettized formats are not yet supported, skip over the palette, if present ... */
palette_size = cmap_len * (cmap_entry_size/8);
if (palette_size>0)
{
fprintf(stderr, "File contains a palette - not yet supported.");
fseek(fp, palette_size, SEEK_CUR);
}
return 1;
}
#ifdef OPJ_BIG_ENDIAN
static INLINE int16_t swap16(int16_t x)
{
return((((u_int16_t)x & 0x00ffU) << 8) |
(((u_int16_t)x & 0xff00U) >> 8));
}
#endif
static int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height,
OPJ_BOOL flip_image)
{
unsigned short image_w, image_h, us0;
unsigned char uc0, image_type;
unsigned char pixel_depth, image_desc;
if (!bits_per_pixel || !width || !height)
return 0;
pixel_depth = 0;
if ( bits_per_pixel < 256 )
pixel_depth = (unsigned char)bits_per_pixel;
else{
fprintf(stderr,"ERROR: Wrong bits per pixel inside tga_header");
return 0;
}
uc0 = 0;
if(fwrite(&uc0, 1, 1, fp) != 1) goto fails; /* id_length */
if(fwrite(&uc0, 1, 1, fp) != 1) goto fails; /* colour_map_type */
image_type = 2; /* Uncompressed. */
if(fwrite(&image_type, 1, 1, fp) != 1) goto fails;
us0 = 0;
if(fwrite(&us0, 2, 1, fp) != 1) goto fails; /* colour_map_index */
if(fwrite(&us0, 2, 1, fp) != 1) goto fails; /* colour_map_length */
if(fwrite(&uc0, 1, 1, fp) != 1) goto fails; /* colour_map_entry_size */
if(fwrite(&us0, 2, 1, fp) != 1) goto fails; /* x_origin */
if(fwrite(&us0, 2, 1, fp) != 1) goto fails; /* y_origin */
image_w = (unsigned short)width;
image_h = (unsigned short) height;
#ifndef OPJ_BIG_ENDIAN
if(fwrite(&image_w, 2, 1, fp) != 1) goto fails;
if(fwrite(&image_h, 2, 1, fp) != 1) goto fails;
#else
image_w = swap16(image_w);
image_h = swap16(image_h);
if(fwrite(&image_w, 2, 1, fp) != 1) goto fails;
if(fwrite(&image_h, 2, 1, fp) != 1) goto fails;
#endif
if(fwrite(&pixel_depth, 1, 1, fp) != 1) goto fails;
image_desc = 8; /* 8 bits per component. */
if (flip_image)
image_desc |= 32;
if(fwrite(&image_desc, 1, 1, fp) != 1) goto fails;
return 1;
fails:
fputs("\nwrite_tgaheader: write ERROR\n", stderr);
return 0;
}
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;
OPJ_BOOL mono ;
OPJ_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 = OPJ_CLRSPC_GRAY;
numcomps = save_alpha ? 2 : 1;
}
else {
numcomps = save_alpha ? 4 : 3;
color_space = OPJ_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 = (OPJ_UINT32)subsampling_dx;
cmptparm[i].dy = (OPJ_UINT32)subsampling_dy;
cmptparm[i].w = image_width;
cmptparm[i].h = image_height;
}
/* create the image */
image = opj_image_create((OPJ_UINT32)numcomps, &cmptparm[0], color_space);
if (!image)
return NULL;
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = !image->x0 ? (OPJ_UINT32)(image_width - 1) * (OPJ_UINT32)subsampling_dx + 1 : image->x0 + (OPJ_UINT32)(image_width - 1) * (OPJ_UINT32)subsampling_dx + 1;
image->y1 = !image->y0 ? (OPJ_UINT32)(image_height - 1) * (OPJ_UINT32)subsampling_dy + 1 : image->y0 + (OPJ_UINT32)(image_height - 1) * (OPJ_UINT32)subsampling_dy + 1;
/* set image data */
for (y=0; y < image_height; y++)
{
int index;
if (flip_image)
index = (int)((image_height-y-1)*image_width);
else
index = (int)(y*image_width);
if (numcomps==3)
{
for (x=0;x<image_width;x++)
{
unsigned char r,g,b;
if( !fread(&b, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if ( !fread(&g, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if ( !fread(&r, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
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;
if ( !fread(&b, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if ( !fread(&g, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if ( !fread(&r, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if ( !fread(&a, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
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;
OPJ_BOOL write_alpha;
unsigned int i;
int adjustR, adjustG, adjustB, fails;
unsigned int alpha_channel;
float r,g,b,a;
unsigned char value;
float scale;
FILE *fdest;
size_t res;
fails = 1;
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 = (int)image->comps[0].w;
height = (int)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, OPJ_TRUE))
goto fin;
alpha_channel = image->numcomps-1;
scale = 255.0f / (float)((1<<image->comps[0].prec)-1);
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);
for (y=0; y < height; y++)
{
unsigned int index= (unsigned int)(y*width);
for (x=0; x < width; x++, index++)
{
r = (float)(image->comps[0].data[index] + adjustR);
if (image->numcomps > 2)
{
g = (float)(image->comps[1].data[index] + adjustG);
b = (float)(image->comps[2].data[index] + adjustB);
}
else
{/* Greyscale ... */
g = r;
b = r;
}
/* TGA format writes BGR ... */
if(b > 255.) b = 255.; else if(b < 0.) b = 0.;
value = (unsigned char)(b*scale);
res = fwrite(&value,1,1,fdest);
if( res < 1 )
{
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
if(g > 255.) g = 255.; else if(g < 0.) g = 0.;
value = (unsigned char)(g*scale);
res = fwrite(&value,1,1,fdest);
if( res < 1 )
{
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
if(r > 255.) r = 255.; else if(r < 0.) r = 0.;
value = (unsigned char)(r*scale);
res = fwrite(&value,1,1,fdest);
if( res < 1 )
{
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
if (write_alpha)
{
a = (float)(image->comps[alpha_channel].data[index]);
if(a > 255.) a = 255.; else if(a < 0.) a = 0.;
value = (unsigned char)(a*scale);
res = fwrite(&value,1,1,fdest);
if( res < 1 )
{
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
}
}
}
fails = 0;
fin:
fclose(fdest);
return fails;
}
/* -->> -->> -->> -->>
PGX IMAGE FORMAT
<<-- <<-- <<-- <<-- */
static unsigned char readuchar(FILE * f)
{
unsigned char c1;
if ( !fread(&c1, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
return c1;
}
static unsigned short readushort(FILE * f, int bigendian)
{
unsigned char c1, c2;
if ( !fread(&c1, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if ( !fread(&c2, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if (bigendian)
return (unsigned short)((c1 << 8) + c2);
else
return (unsigned short)((c2 << 8) + c1);
}
static unsigned int readuint(FILE * f, int bigendian)
{
unsigned char c1, c2, c3, c4;
if ( !fread(&c1, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if ( !fread(&c2, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if ( !fread(&c3, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if ( !fread(&c4, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return 0;
}
if (bigendian)
return (unsigned int)(c1 << 24) + (unsigned int)(c2 << 16) + (unsigned int)(c3 << 8) + c4;
else
return (unsigned int)(c4 << 24) + (unsigned int)(c3 << 16) + (unsigned int)(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;
int adjustS, ushift, dshift, force8;
char endian1,endian2,sign;
char signtmp[32];
char temp[32];
int bigendian;
opj_image_comp_t *comp = NULL;
numcomps = 1;
color_space = OPJ_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);
if( fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d",temp,&endian1,&endian2,signtmp,&prec,temp,&w,temp,&h) != 9){
fprintf(stderr, "ERROR: Failed to read the right number of element from the fscanf() function!\n");
return NULL;
}
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 = (OPJ_UINT32)parameters->image_offset_x0;
cmptparm.y0 = (OPJ_UINT32)parameters->image_offset_y0;
cmptparm.w = !cmptparm.x0 ? (OPJ_UINT32)((w - 1) * parameters->subsampling_dx + 1) : cmptparm.x0 + (OPJ_UINT32)(w - 1) * (OPJ_UINT32)parameters->subsampling_dx + 1;
cmptparm.h = !cmptparm.y0 ? (OPJ_UINT32)((h - 1) * parameters->subsampling_dy + 1) : cmptparm.y0 + (OPJ_UINT32)(h - 1) * (OPJ_UINT32)parameters->subsampling_dy + 1;
if (sign == '-') {
cmptparm.sgnd = 1;
} else {
cmptparm.sgnd = 0;
}
if(prec < 8)
{
force8 = 1;
ushift = 8 - prec; dshift = prec - ushift;
if(cmptparm.sgnd) adjustS = (1<<(prec - 1)); else adjustS = 0;
cmptparm.sgnd = 0;
prec = 8;
}
else ushift = dshift = force8 = adjustS = 0;
cmptparm.prec = (OPJ_UINT32)prec;
cmptparm.bpp = (OPJ_UINT32)prec;
cmptparm.dx = (OPJ_UINT32)parameters->subsampling_dx;
cmptparm.dy = (OPJ_UINT32)parameters->subsampling_dy;
/* create the image */
image = opj_image_create((OPJ_UINT32)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(force8)
{
v = readuchar(f) + adjustS;
v = (v<<ushift) + (v>>dshift);
comp->data[i] = (unsigned char)v;
if(v > max) max = v;
continue;
}
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 = (int)readuint(f, bigendian);
} else {
v = (int) readuint(f, bigendian);
}
}
if (v > max)
max = v;
comp->data[i] = v;
}
fclose(f);
comp->bpp = (OPJ_UINT32)int_floorlog2(max) + 1;
return image;
}
#define CLAMP(x,a,b) x < a ? a : (x > b ? b : x)
static INLINE int clamp( const int value, const int prec, const int sgnd )
{
if( sgnd )
{
if (prec <= 8) return CLAMP(value,-128,127);
else if (prec <= 16) return CLAMP(value,-32768,32767);
else return CLAMP(value,-2147483647-1,2147483647);
}
else
{
if (prec <= 8) return CLAMP(value,0,255);
else if (prec <= 16) return CLAMP(value,0,65535);
else return value; /*CLAMP(value,0,4294967295);*/
}
}
int imagetopgx(opj_image_t * image, const char *outfile)
{
int w, h;
int i, j, fails = 1;
unsigned int 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;
size_t res;
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." );
goto fin;
}
if( total > 256 )
{
name = (char*)malloc(total+1);
}
strncpy(name, outfile, dotpos);
sprintf(name+dotpos, "_%d.pgx", compno);
fdest = fopen(name, "wb");
/* dont need name anymore */
if( total > 256 ) free(name);
if (!fdest)
{
fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
goto fin;
}
w = (int)image->comps[compno].w;
h = (int)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++)
{
/* FIXME: clamp func is being called within a loop */
const int val = clamp(image->comps[compno].data[i],
(int)comp->prec, (int)comp->sgnd);
for (j = nbytes - 1; j >= 0; j--)
{
int v = (int)(val >> (j * 8));
unsigned char byte = (unsigned char)v;
res = fwrite(&byte, 1, 1, fdest);
if( res < 1 )
{
fprintf(stderr, "failed to write 1 byte for %s\n", name);
goto fin;
}
}
}
fclose(fdest); fdest = NULL;
}
fails = 0;
fin:
if(fdest) fclose(fdest);
return fails;
}
/* -->> -->> -->> -->>
PNM IMAGE FORMAT
<<-- <<-- <<-- <<-- */
struct pnm_header
{
int width, height, maxval, depth, format;
char rgb, rgba, gray, graya, bw;
char ok;
};
static char *skip_white(char *s)
{
while(*s)
{
if(*s == '\n' || *s == '\r') return NULL;
if(isspace(*s)) { ++s; continue; }
return s;
}
return NULL;
}
static char *skip_int(char *start, int *out_n)
{
char *s;
char c;
*out_n = 0; s = start;
s = skip_white(start);
if(s == NULL) return NULL;
start = s;
while(*s)
{
if( !isdigit(*s)) break;
++s;
}
c = *s; *s = 0; *out_n = atoi(start); *s = c;
return s;
}
static char *skip_idf(char *start, char out_idf[256])
{
char *s;
char c;
s = skip_white(start);
if(s == NULL) return NULL;
start = s;
while(*s)
{
if(isalpha(*s) || *s == '_') { ++s; continue; }
break;
}
c = *s; *s = 0; strncpy(out_idf, start, 255); *s = c;
return s;
}
static void read_pnm_header(FILE *reader, struct pnm_header *ph)
{
int format, have_wh, end, ttype;
char idf[256], type[256];
char line[256];
if (fgets(line, 250, reader) == NULL)
{
fprintf(stderr,"\nWARNING: fgets return a NULL value");
return;
}
if(line[0] != 'P')
{
fprintf(stderr,"read_pnm_header:PNM:magic P missing\n"); return;
}
format = atoi(line + 1);
if(format < 1 || format > 7)
{
fprintf(stderr,"read_pnm_header:magic format %d invalid\n", format);
return;
}
ph->format = format;
ttype = end = have_wh = 0;
while(fgets(line, 250, reader))
{
char *s;
if(*line == '#') continue;
s = line;
if(format == 7)
{
s = skip_idf(s, idf);
if(s == NULL || *s == 0) return;
if(strcmp(idf, "ENDHDR") == 0)
{
end = 1; break;
}
if(strcmp(idf, "WIDTH") == 0)
{
s = skip_int(s, &ph->width);
if(s == NULL || *s == 0) return;
continue;
}
if(strcmp(idf, "HEIGHT") == 0)
{
s = skip_int(s, &ph->height);
if(s == NULL || *s == 0) return;
continue;
}
if(strcmp(idf, "DEPTH") == 0)
{
s = skip_int(s, &ph->depth);
if(s == NULL || *s == 0) return;
continue;
}
if(strcmp(idf, "MAXVAL") == 0)
{
s = skip_int(s, &ph->maxval);
if(s == NULL || *s == 0) return;
continue;
}
if(strcmp(idf, "TUPLTYPE") == 0)
{
s = skip_idf(s, type);
if(s == NULL || *s == 0) return;
if(strcmp(type, "BLACKANDWHITE") == 0)
{
ph->bw = 1; ttype = 1; continue;
}
if(strcmp(type, "GRAYSCALE") == 0)
{
ph->gray = 1; ttype = 1; continue;
}
if(strcmp(type, "GRAYSCALE_ALPHA") == 0)
{
ph->graya = 1; ttype = 1; continue;
}
if(strcmp(type, "RGB") == 0)
{
ph->rgb = 1; ttype = 1; continue;
}
if(strcmp(type, "RGB_ALPHA") == 0)
{
ph->rgba = 1; ttype = 1; continue;
}
fprintf(stderr,"read_pnm_header:unknown P7 TUPLTYPE %s\n",type);
return;
}
fprintf(stderr,"read_pnm_header:unknown P7 idf %s\n",idf);
return;
} /* if(format == 7) */
if( !have_wh)
{
s = skip_int(s, &ph->width);
s = skip_int(s, &ph->height);
have_wh = 1;
if(format == 1 || format == 4) break;
if(format == 2 || format == 3 || format == 5 || format == 6)
{
if (skip_int(s, &ph->maxval) != NULL) {
if(ph->maxval > 65535) {
return;
}
else {
break;
}
}
}
continue;
}
if(format == 2 || format == 3 || format == 5 || format == 6)
{
/* P2, P3, P5, P6: */
s = skip_int(s, &ph->maxval);
if(ph->maxval > 65535) return;
}
break;
}/* while(fgets( ) */
if(format == 2 || format == 3 || format > 4)
{
if(ph->maxval < 1 || ph->maxval > 65535) return;
}
if(ph->width < 1 || ph->height < 1) return;
if(format == 7)
{
if(!end)
{
fprintf(stderr,"read_pnm_header:P7 without ENDHDR\n"); return;
}
if(ph->depth < 1 || ph->depth > 4) return;
if(ph->width && ph->height && ph->depth && ph->maxval && ttype)
ph->ok = 1;
}
else
{
if(format != 1 && format != 4)
{
if(ph->width && ph->height && ph->maxval) ph->ok = 1;
}
else
{
if(ph->width && ph->height) ph->ok = 1;
ph->maxval = 255;
}
}
}
static int has_prec(int val)
{
if(val < 2) return 1;
if(val < 4) return 2;
if(val < 8) return 3;
if(val < 16) return 4;
if(val < 32) return 5;
if(val < 64) return 6;
if(val < 128) return 7;
if(val < 256) return 8;
if(val < 512) return 9;
if(val < 1024) return 10;
if(val < 2048) return 11;
if(val < 4096) return 12;
if(val < 8192) return 13;
if(val < 16384) return 14;
if(val < 32768) return 15;
return 16;
}
opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
FILE *fp = NULL;
int i, compno, numcomps, w, h, prec, format;
OPJ_COLOR_SPACE color_space;
opj_image_cmptparm_t cmptparm[4]; /* RGBA: max. 4 components */
opj_image_t * image = NULL;
struct pnm_header header_info;
if((fp = fopen(filename, "rb")) == NULL)
{
fprintf(stderr, "pnmtoimage:Failed to open %s for reading!\n",filename);
return NULL;
}
memset(&header_info, 0, sizeof(struct pnm_header));
read_pnm_header(fp, &header_info);
if(!header_info.ok) { fclose(fp); return NULL; }
format = header_info.format;
switch(format)
{
case 1: /* ascii bitmap */
case 4: /* raw bitmap */
numcomps = 1;
break;
case 2: /* ascii greymap */
case 5: /* raw greymap */
numcomps = 1;
break;
case 3: /* ascii pixmap */
case 6: /* raw pixmap */
numcomps = 3;
break;
case 7: /* arbitrary map */
numcomps = header_info.depth;
break;
default: fclose(fp); return NULL;
}
if(numcomps < 3)
color_space = OPJ_CLRSPC_GRAY;/* GRAY, GRAYA */
else
color_space = OPJ_CLRSPC_SRGB;/* RGB, RGBA */
prec = has_prec(header_info.maxval);
if(prec < 8) prec = 8;
w = header_info.width;
h = header_info.height;
subsampling_dx = parameters->subsampling_dx;
subsampling_dy = parameters->subsampling_dy;
memset(&cmptparm[0], 0, (size_t)numcomps * sizeof(opj_image_cmptparm_t));
for(i = 0; i < numcomps; i++)
{
cmptparm[i].prec = (OPJ_UINT32)prec;
cmptparm[i].bpp = (OPJ_UINT32)prec;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = (OPJ_UINT32)subsampling_dx;
cmptparm[i].dy = (OPJ_UINT32)subsampling_dy;
cmptparm[i].w = (OPJ_UINT32)w;
cmptparm[i].h = (OPJ_UINT32)h;
}
image = opj_image_create((OPJ_UINT32)numcomps, &cmptparm[0], color_space);
if(!image) { fclose(fp); return NULL; }
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = (OPJ_UINT32)(parameters->image_offset_x0 + (w - 1) * subsampling_dx + 1);
image->y1 = (OPJ_UINT32)(parameters->image_offset_y0 + (h - 1) * subsampling_dy + 1);
if((format == 2) || (format == 3)) /* ascii pixmap */
{
unsigned int index;
for (i = 0; i < w * h; i++)
{
for(compno = 0; compno < numcomps; compno++)
{
index = 0;
if (fscanf(fp, "%u", &index) != 1)
fprintf(stderr, "\nWARNING: fscanf return a number of element different from the expected.\n");
image->comps[compno].data[i] = (OPJ_INT32)(index * 255)/header_info.maxval;
}
}
}
else
if((format == 5)
|| (format == 6)
||((format == 7)
&& ( header_info.gray || header_info.graya
|| header_info.rgb || header_info.rgba)))/* binary pixmap */
{
unsigned char c0, c1, one;
one = (prec < 9);
for (i = 0; i < w * h; i++)
{
for(compno = 0; compno < numcomps; compno++)
{
if ( !fread(&c0, 1, 1, fp) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
return NULL;
}
if(one)
{
image->comps[compno].data[i] = c0;
}
else
{
if ( !fread(&c1, 1, 1, fp) )
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
/* netpbm: */
image->comps[compno].data[i] = ((c0<<8) | c1);
}
}
}
}
else
if(format == 1) /* ascii bitmap */
{
for (i = 0; i < w * h; i++)
{
unsigned int index;
if ( fscanf(fp, "%u", &index) != 1)
fprintf(stderr, "\nWARNING: fscanf return a number of element different from the expected.\n");
image->comps[0].data[i] = (index?0:255);
}
}
else
if(format == 4)
{
int x, y, bit;
unsigned char uc;
i = 0;
for(y = 0; y < h; ++y)
{
bit = -1; uc = 0;
for(x = 0; x < w; ++x)
{
if(bit == -1)
{
bit = 7;
uc = (unsigned char)getc(fp);
}
image->comps[0].data[i] = (((uc>>bit) & 1)?0:255);
--bit; ++i;
}
}
}
else
if((format == 7 && header_info.bw)) /*MONO*/
{
unsigned char uc;
for(i = 0; i < w * h; ++i)
{
if ( !fread(&uc, 1, 1, fp) )
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
image->comps[0].data[i] = (uc & 1)?0:255;
}
}
fclose(fp);
return image;
}/* pnmtoimage() */
int imagetopnm(opj_image_t * image, const char *outfile, int force_split)
{
int *red, *green, *blue, *alpha;
int wr, hr, max;
int i;
unsigned int compno, ncomp;
int adjustR, adjustG, adjustB, adjustA;
int fails, two, want_gray, has_alpha, triple;
int prec, v;
FILE *fdest = NULL;
const char *tmp = outfile;
char *destname;
alpha = NULL;
if((prec = (int)image->comps[0].prec) > 16)
{
fprintf(stderr,"%s:%d:imagetopnm\n\tprecision %d is larger than 16"
"\n\t: refused.\n",__FILE__,__LINE__,prec);
return 1;
}
two = has_alpha = 0; fails = 1;
ncomp = image->numcomps;
while (*tmp) ++tmp; tmp -= 2;
want_gray = (*tmp == 'g' || *tmp == 'G');
ncomp = image->numcomps;
if(want_gray) ncomp = 1;
if ((force_split == 0) &&
(ncomp == 2 /* GRAYA */
|| (ncomp > 2 /* RGB, RGBA */
&& 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
)))
{
fdest = fopen(outfile, "wb");
if (!fdest)
{
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return fails;
}
two = (prec > 8);
triple = (ncomp > 2);
wr = (int)image->comps[0].w; hr = (int)image->comps[0].h;
max = (1<<prec) - 1; has_alpha = (ncomp == 4 || ncomp == 2);
red = image->comps[0].data;
if(triple)
{
green = image->comps[1].data;
blue = image->comps[2].data;
}
else green = blue = NULL;
if(has_alpha)
{
const char *tt = (triple?"RGB_ALPHA":"GRAYSCALE_ALPHA");
fprintf(fdest, "P7\n# OpenJPEG-%s\nWIDTH %d\nHEIGHT %d\nDEPTH %d\n"
"MAXVAL %d\nTUPLTYPE %s\nENDHDR\n", opj_version(),
wr, hr, ncomp, max, tt);
alpha = image->comps[ncomp - 1].data;
adjustA = (image->comps[ncomp - 1].sgnd ?
1 << (image->comps[ncomp - 1].prec - 1) : 0);
}
else
{
fprintf(fdest, "P6\n# OpenJPEG-%s\n%d %d\n%d\n",
opj_version(), wr, hr, max);
adjustA = 0;
}
adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
if(triple)
{
adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
}
else adjustG = adjustB = 0;
for(i = 0; i < wr * hr; ++i)
{
if(two)
{
v = *red + adjustR; ++red;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
if(triple)
{
v = *green + adjustG; ++green;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
v = *blue + adjustB; ++blue;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}/* if(triple) */
if(has_alpha)
{
v = *alpha + adjustA; ++alpha;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}
continue;
} /* if(two) */
/* prec <= 8: */
v = *red++;
if(v > 255) v = 255; else if(v < 0) v = 0;
fprintf(fdest, "%c", (unsigned char)v);
if(triple)
{
v = *green++;
if(v > 255) v = 255; else if(v < 0) v = 0;
fprintf(fdest, "%c", (unsigned char)v);
v = *blue++;
if(v > 255) v = 255; else if(v < 0) v = 0;
fprintf(fdest, "%c", (unsigned char)v);
}
if(has_alpha)
{
v = *alpha++;
if(v > 255) v = 255; else if(v < 0) v = 0;
fprintf(fdest, "%c", (unsigned char)v);
}
} /* for(i */
fclose(fdest); return 0;
}
/* YUV or MONO: */
if (image->numcomps > ncomp)
{
fprintf(stderr,"WARNING -> [PGM file] Only the first component\n");
fprintf(stderr," is written to the file\n");
}
destname = (char*)malloc(strlen(outfile) + 8);
for (compno = 0; compno < ncomp; compno++)
{
if (ncomp > 1)
{
/*sprintf(destname, "%d.%s", compno, outfile);*/
const size_t olen = strlen(outfile);
const size_t dotpos = olen - 4;
strncpy(destname, outfile, dotpos);
sprintf(destname+dotpos, "_%d.pgm", compno);
}
else
sprintf(destname, "%s", outfile);
fdest = fopen(destname, "wb");
if (!fdest)
{
fprintf(stderr, "ERROR -> failed to open %s for writing\n", destname);
free(destname);
return 1;
}
wr = (int)image->comps[compno].w; hr = (int)image->comps[compno].h;
prec = (int)image->comps[compno].prec;
max = (1<<prec) - 1;
fprintf(fdest, "P5\n#OpenJPEG-%s\n%d %d\n%d\n",
opj_version(), wr, hr, max);
red = image->comps[compno].data;
adjustR =
(image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
if(prec > 8)
{
for (i = 0; i < wr * hr; i++)
{
v = *red + adjustR; ++red;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
if(has_alpha)
{
v = *alpha++;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}
}/* for(i */
}
else /* prec <= 8 */
{
for(i = 0; i < wr * hr; ++i)
{
v = *red + adjustR; ++red;
if(v > 255) v = 255; else if(v < 0) v = 0;
fprintf(fdest, "%c", (unsigned char)v);
}
}
fclose(fdest);
} /* for (compno */
free(destname);
return 0;
}/* imagetopnm() */
/* -->> -->> -->> -->>
RAW IMAGE FORMAT
<<-- <<-- <<-- <<-- */
static opj_image_t* rawtoimage_common(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp, OPJ_BOOL big_endian) {
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 <width>,<height>,<ncomp>,<bitdepth>,{s,u}@<dx1>x<dy1>:...:<dxn>x<dyn>\n");
fprintf(stderr,"If subsampling is omitted, 1x1 is assumed for all components\n");
fprintf(stderr,"Example: -i image.raw -o image.j2k -F 512,512,3,8,u@1x1:2x2:2x2\n");
fprintf(stderr," for raw 512x512 image with 4:2:0 subsampling\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;
/* FIXME ADE at this point, tcp_mct has not been properly set in calling function */
if (numcomps == 1) {
color_space = OPJ_CLRSPC_GRAY;
} else if ((numcomps >= 3) && (parameters->tcp_mct == 0)) {
color_space = OPJ_CLRSPC_SYCC;
} else if ((numcomps >= 3) && (parameters->tcp_mct != 2)) {
color_space = OPJ_CLRSPC_SRGB;
} else {
color_space = OPJ_CLRSPC_UNKNOWN;
}
w = raw_cp->rawWidth;
h = raw_cp->rawHeight;
cmptparm = (opj_image_cmptparm_t*) calloc((OPJ_UINT32)numcomps,sizeof(opj_image_cmptparm_t));
if (!cmptparm) {
fprintf(stderr, "Failed to allocate image components parameters !!\n");
fprintf(stderr,"Aborting\n");
return NULL;
}
/* initialize image components */
for(i = 0; i < numcomps; i++) {
cmptparm[i].prec = (OPJ_UINT32)raw_cp->rawBitDepth;
cmptparm[i].bpp = (OPJ_UINT32)raw_cp->rawBitDepth;
cmptparm[i].sgnd = (OPJ_UINT32)raw_cp->rawSigned;
cmptparm[i].dx = (OPJ_UINT32)(subsampling_dx * raw_cp->rawComps[i].dx);
cmptparm[i].dy = (OPJ_UINT32)(subsampling_dy * raw_cp->rawComps[i].dy);
cmptparm[i].w = (OPJ_UINT32)w;
cmptparm[i].h = (OPJ_UINT32)h;
}
/* create the image */
image = opj_image_create((OPJ_UINT32)numcomps, &cmptparm[0], color_space);
free(cmptparm);
if(!image) {
fclose(f);
return NULL;
}
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = (OPJ_UINT32)parameters->image_offset_x0 + (OPJ_UINT32)(w - 1) * (OPJ_UINT32)subsampling_dx + 1;
image->y1 = (OPJ_UINT32)parameters->image_offset_y0 + (OPJ_UINT32)(h - 1) * (OPJ_UINT32)subsampling_dy + 1;
if(raw_cp->rawBitDepth <= 8)
{
unsigned char value = 0;
for(compno = 0; compno < numcomps; compno++) {
int nloop = (w*h)/(raw_cp->rawComps[compno].dx*raw_cp->rawComps[compno].dy);
for (i = 0; i < nloop; 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++) {
int nloop = (w*h)/(raw_cp->rawComps[compno].dx*raw_cp->rawComps[compno].dx);
for (i = 0; i < nloop; i++) {
unsigned char temp1;
unsigned char temp2;
if (!fread(&temp1, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
return NULL;
}
if (!fread(&temp2, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
return NULL;
}
if( big_endian )
{
value = (unsigned short)((temp1 << 8) + temp2);
}
else
{
value = (unsigned short)((temp2 << 8) + temp1);
}
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;
}
opj_image_t* rawltoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
return rawtoimage_common(filename, parameters, raw_cp, OPJ_FALSE);
}
opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
return rawtoimage_common(filename, parameters, raw_cp, OPJ_TRUE);
}
static int imagetoraw_common(opj_image_t * image, const char *outfile, OPJ_BOOL big_endian)
{
FILE *rawFile = NULL;
size_t res;
unsigned int compno;
int w, h, fails;
int line, row, curr, mask;
int *ptr;
unsigned char uc;
(void)big_endian;
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;
}
fails = 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 = (int)image->comps[compno].w;
h = (int)image->comps[compno].h;
if(image->comps[compno].prec <= 8)
{
if(image->comps[compno].sgnd == 1)
{
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 = *ptr;
if(curr > 127) curr = 127; else if(curr < -128) curr = -128;
uc = (unsigned char) (curr & mask);
res = fwrite(&uc, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
ptr++;
}
}
}
else if(image->comps[compno].sgnd == 0)
{
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 = *ptr;
if(curr > 255) curr = 255; else if(curr < 0) curr = 0;
uc = (unsigned char) (curr & mask);
res = fwrite(&uc, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
goto fin;
}
ptr++;
}
}
}
}
else if(image->comps[compno].prec <= 16)
{
if(image->comps[compno].sgnd == 1)
{
union { signed short val; signed char vals[2]; } uc16;
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 = *ptr;
if(curr > 32767 ) curr = 32767; else if( curr < -32768) curr = -32768;
uc16.val = (signed short)(curr & mask);
res = fwrite(uc16.vals, 1, 2, rawFile);
if( res < 2 ) {
fprintf(stderr, "failed to write 2 byte for %s\n", outfile);
goto fin;
}
ptr++;
}
}
}
else if(image->comps[compno].sgnd == 0)
{
union { unsigned short val; unsigned char vals[2]; } uc16;
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 = *ptr;
if(curr > 65535 ) curr = 65535; else if( curr < 0) curr = 0;
uc16.val = (unsigned short)(curr & mask);
res = fwrite(uc16.vals, 1, 2, rawFile);
if( res < 2 ) {
fprintf(stderr, "failed to write 2 byte for %s\n", outfile);
goto fin;
}
ptr++;
}
}
}
}
else if (image->comps[compno].prec <= 32)
{
fprintf(stderr,"More than 16 bits per component no handled yet\n");
goto fin;
}
else
{
fprintf(stderr,"Error: invalid precision: %d\n", image->comps[compno].prec);
goto fin;
}
}
fails = 0;
fin:
fclose(rawFile);
return fails;
}
int imagetoraw(opj_image_t * image, const char *outfile)
{
return imagetoraw_common(image, outfile, OPJ_TRUE);
}
int imagetorawl(opj_image_t * image, const char *outfile)
{
return imagetoraw_common(image, outfile, OPJ_FALSE);
}
#ifdef OPJ_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 = NULL;
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 + (unsigned int)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, sizeof(cmptparm));
sub_dx = params->subsampling_dx; sub_dy = params->subsampling_dy;
for(i = 0; i < nr_comp; ++i)
{
cmptparm[i].prec = (OPJ_UINT32)bit_depth;
/* bits_per_pixel: 8 or 16 */
cmptparm[i].bpp = (OPJ_UINT32)bit_depth;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = (OPJ_UINT32)sub_dx;
cmptparm[i].dy = (OPJ_UINT32)sub_dy;
cmptparm[i].w = (OPJ_UINT32)width;
cmptparm[i].h = (OPJ_UINT32)height;
}
image = opj_image_create(nr_comp, &cmptparm[0], OPJ_CLRSPC_SRGB);
if(image == NULL) goto fin;
image->x0 = (OPJ_UINT32)params->image_offset_x0;
image->y0 = (OPJ_UINT32)params->image_offset_y0;
image->x1 = (OPJ_UINT32)(image->x0 + (width - 1) * (OPJ_UINT32)sub_dx + 1 + image->x0);
image->y1 = (OPJ_UINT32)(image->y0 + (height - 1) * (OPJ_UINT32)sub_dy + 1 + image->y0);
r = image->comps[0].data;
g = image->comps[1].data;
b = image->comps[2].data;
if(has_alpha) {
a = image->comps[3].data;
image->comps[3].alpha = 1;
}
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, adjustA, x, y, fails;
int prec, ushift, dshift, is16, force16, force8;
unsigned short mask = 0xffff;
png_color_8 sig_bit;
is16 = force16 = force8 = ushift = dshift = 0; fails = 1;
prec = (int)image->comps[0].prec;
nr_comp = (int)image->numcomps;
if(prec > 8 && prec < 16)
{
ushift = 16 - prec; dshift = prec - ushift;
prec = 16; force16 = 1;
}
else
if(prec < 8 && nr_comp > 1)/* GRAY_ALPHA, RGB, RGB_ALPHA */
{
ushift = 8 - prec; dshift = 8 - ushift;
prec = 8; force8 = 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
*
* ERRORS:
*
* color_type == PNG_COLOR_TYPE_PALETTE && bit_depth > 8
* color_type == PNG_COLOR_TYPE_RGB && bit_depth < 8
* color_type == PNG_COLOR_TYPE_GRAY_ALPHA && bit_depth < 8
* color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8
*
*/
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;
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 = (int)image->comps[0].w;
height = (int)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 = (png_byte)prec;
if(has_alpha)
{
sig_bit.alpha = (png_byte)prec;
alpha = image->comps[3].data;
color_type = PNG_COLOR_TYPE_RGB_ALPHA;
adjustA = (image->comps[3].sgnd ? 1 << (image->comps[3].prec - 1) : 0);
}
else
{
sig_bit.alpha = 0; alpha = NULL;
color_type = PNG_COLOR_TYPE_RGB;
adjustA = 0;
}
png_set_sBIT(png, info, &sig_bit);
png_set_IHDR(png, info, (png_uint_32)width, (png_uint_32)height, prec,
color_type,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
png_set_gamma(png, 2.2, 1./2.2);
png_set_sRGB(png, info, PNG_sRGB_INTENT_PERCEPTUAL);
/*=============================*/
png_write_info(png, info);
/*=============================*/
if(prec < 8)
{
png_set_packing(png);
}
// printf("%s:%d:sgnd(%d,%d,%d) w(%d) h(%d) alpha(%d)\n",__FILE__,__LINE__,
//image->comps[0].sgnd,
//image->comps[1].sgnd,image->comps[2].sgnd,width,height,has_alpha);
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((size_t)width * (size_t)nr_comp * 2);
for(y = 0; y < height; ++y)
{
d = row_buf;
for(x = 0; x < width; ++x)
{
if(is16)
{
v = *red + adjustR; ++red;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
v = *green + adjustG; ++green;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
v = *blue + adjustB; ++blue;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
if(has_alpha)
{
v = *alpha + adjustA; ++alpha;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
}
continue;
}/* if(is16) */
v = *red + adjustR; ++red;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
v = *green + adjustG; ++green;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
v = *blue + adjustB; ++blue;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
if(has_alpha)
{
v = *alpha + adjustA; ++alpha;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
}
} /* 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;
sig_bit.gray = (png_byte)prec;
sig_bit.red = sig_bit.green = sig_bit.blue = sig_bit.alpha = 0;
alpha = NULL; adjustA = 0;
color_type = PNG_COLOR_TYPE_GRAY;
if(nr_comp == 2)
{
has_alpha = 1; sig_bit.alpha = (png_byte)prec;
alpha = image->comps[1].data;
color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
adjustA = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
}
width = (int)image->comps[0].w;
height = (int)image->comps[0].h;
png_set_IHDR(png, info, (png_uint_32)width, (png_uint_32)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_set_gamma(png, 2.2, 1./2.2);
png_set_sRGB(png, info, PNG_sRGB_INTENT_PERCEPTUAL);
/*=============================*/
png_write_info(png, info);
/*=============================*/
adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
if(prec < 8)
{
png_set_packing(png);
}
if(prec > 8)
{
row_buf = (unsigned char*)
malloc((size_t)width * (size_t)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(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
if(has_alpha)
{
v = *alpha++;
if(v > 65535) v = 65535; else if(v < 0) v = 0;
if(force16) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
}
}/* for(x) */
png_write_row(png, row_buf);
} /* for(y) */
free(row_buf);
}
else /* prec <= 8 */
{
row_buf = (unsigned char*)calloc((size_t)width, (size_t)nr_comp * 2);
for(y = 0; y < height; ++y)
{
d = row_buf;
for(x = 0; x < width; ++x)
{
v = *red + adjustR; ++red;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
if(has_alpha)
{
v = *alpha + adjustA; ++alpha;
if(v > 255) v = 255; else if(v < 0) v = 0;
if(force8) { v = (v<<ushift) + (v>>dshift); }
*d++ = (unsigned char)(v & mask);
}
}/* 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 /* OPJ_HAVE_LIBPNG */
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