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openjpeg/applications/codec/convert.c

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/*
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2007, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2006-2007, Parvatha Elangovan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "openjpeg.h"
#include "convert.h"
#ifdef HAVE_STDINT_H
#include <stdint.h>
#else
#if defined(_WIN32)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
#error unsupported platform
#endif
#endif
/*
* 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, int precision)
{
size_t i, len;
unsigned int umax = (unsigned int)((int)-1);
len = (size_t)component->w * (size_t)component->h;
if (precision < 32) {
umax = (1U << precision) - 1U;
}
if (component->sgnd) {
int* l_data = component->data;
int max = (int)(umax / 2U);
int min = -max - 1;
for (i = 0U; i < len; ++i) {
if (l_data[i] > max) {
l_data[i] = max;
} else if (l_data[i] < min) {
l_data[i] = min;
}
}
} else {
unsigned int* l_data = (unsigned int*)component->data;
for (i = 0U; 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, int precision)
{
size_t i, len;
len = (size_t)component->w * (size_t)component->h;
if (component->sgnd) {
int64_t newMax = (int64_t)(1U << (precision - 1));
int64_t oldMax = (int64_t)(1U << (component->prec - 1));
int* l_data = component->data;
for (i = 0; i < len; ++i) {
l_data[i] = (int)(((int64_t)l_data[i] * newMax) / oldMax);
}
} else {
uint64_t newMax = (uint64_t)((1U << precision) - 1U);
uint64_t oldMax = (uint64_t)((1U << component->prec) - 1U);
unsigned int* l_data = (unsigned int*)component->data;
for (i = 0; i < len; ++i) {
l_data[i] = (unsigned int)(((uint64_t)l_data[i] * newMax) / oldMax);
}
}
component->prec = precision;
component->bpp = precision;
}
void scale_component(opj_image_comp_t* component, int precision)
{
int shift;
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 = (size_t)component->w * (size_t)component->h;
if (component->sgnd) {
int* l_data = component->data;
for (i = 0U; i < len; ++i) {
l_data[i] >>= shift;
}
} else {
unsigned int* l_data = (unsigned int*)component->data;
for (i = 0U; i < len; ++i) {
l_data[i] >>= shift;
}
}
component->bpp = precision;
component->prec = precision;
}
/* planar / interleaved conversions */
/* used by PNG/TIFF */
static void convert_32s_C1P1(const int32_t* pSrc, int32_t* const* pDst, size_t length)
{
memcpy(pDst[0], pSrc, length * sizeof(int32_t));
}
static void convert_32s_C2P2(const int32_t* pSrc, int32_t* const* pDst, size_t length)
{
size_t i;
int32_t* pDst0 = pDst[0];
int32_t* pDst1 = pDst[1];
for (i = 0; i < length; i++) {
pDst0[i] = pSrc[2*i+0];
pDst1[i] = pSrc[2*i+1];
}
}
static void convert_32s_C3P3(const int32_t* pSrc, int32_t* const* pDst, size_t length)
{
size_t i;
int32_t* pDst0 = pDst[0];
int32_t* pDst1 = pDst[1];
int32_t* pDst2 = pDst[2];
for (i = 0; i < length; i++) {
pDst0[i] = pSrc[3*i+0];
pDst1[i] = pSrc[3*i+1];
pDst2[i] = pSrc[3*i+2];
}
}
static void convert_32s_C4P4(const int32_t* pSrc, int32_t* const* pDst, size_t length)
{
size_t i;
int32_t* pDst0 = pDst[0];
int32_t* pDst1 = pDst[1];
int32_t* pDst2 = pDst[2];
int32_t* pDst3 = pDst[3];
for (i = 0; i < length; i++) {
pDst0[i] = pSrc[4*i+0];
pDst1[i] = pSrc[4*i+1];
pDst2[i] = pSrc[4*i+2];
pDst3[i] = pSrc[4*i+3];
}
}
const convert_32s_CXPX convert_32s_CXPX_LUT[5] = {
NULL,
convert_32s_C1P1,
convert_32s_C2P2,
convert_32s_C3P3,
convert_32s_C4P4
};
static void convert_32s_P1C1(int32_t const* const* pSrc, int32_t* pDst, size_t length, int32_t adjust)
{
size_t i;
const int32_t* pSrc0 = pSrc[0];
for (i = 0; i < length; i++) {
pDst[i] = pSrc0[i] + adjust;
}
}
static void convert_32s_P2C2(int32_t const* const* pSrc, int32_t* pDst, size_t length, int32_t adjust)
{
size_t i;
const int32_t* pSrc0 = pSrc[0];
const int32_t* pSrc1 = pSrc[1];
for (i = 0; i < length; i++) {
pDst[2*i+0] = pSrc0[i] + adjust;
pDst[2*i+1] = pSrc1[i] + adjust;
}
}
static void convert_32s_P3C3(int32_t const* const* pSrc, int32_t* pDst, size_t length, int32_t adjust)
{
size_t i;
const int32_t* pSrc0 = pSrc[0];
const int32_t* pSrc1 = pSrc[1];
const int32_t* pSrc2 = pSrc[2];
for (i = 0; i < length; i++) {
pDst[3*i+0] = pSrc0[i] + adjust;
pDst[3*i+1] = pSrc1[i] + adjust;
pDst[3*i+2] = pSrc2[i] + adjust;
}
}
static void convert_32s_P4C4(int32_t const* const* pSrc, int32_t* pDst, size_t length, int32_t adjust)
{
size_t i;
const int32_t* pSrc0 = pSrc[0];
const int32_t* pSrc1 = pSrc[1];
const int32_t* pSrc2 = pSrc[2];
const int32_t* pSrc3 = pSrc[3];
for (i = 0; i < length; i++) {
pDst[4*i+0] = pSrc0[i] + adjust;
pDst[4*i+1] = pSrc1[i] + adjust;
pDst[4*i+2] = pSrc2[i] + adjust;
pDst[4*i+3] = pSrc3[i] + adjust;
}
}
const convert_32s_PXCX convert_32s_PXCX_LUT[5] = {
NULL,
convert_32s_P1C1,
convert_32s_P2C2,
convert_32s_P3C3,
convert_32s_P4C4
};
/* bit depth conversions */
/* used by PNG/TIFF up to 8bpp */
static void convert_1u32s_C1R(const uint8_t* pSrc, int32_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)7U); i+=8U) {
uint32_t val = *pSrc++;
pDst[i+0] = (int32_t)( val >> 7);
pDst[i+1] = (int32_t)((val >> 6) & 0x1U);
pDst[i+2] = (int32_t)((val >> 5) & 0x1U);
pDst[i+3] = (int32_t)((val >> 4) & 0x1U);
pDst[i+4] = (int32_t)((val >> 3) & 0x1U);
pDst[i+5] = (int32_t)((val >> 2) & 0x1U);
pDst[i+6] = (int32_t)((val >> 1) & 0x1U);
pDst[i+7] = (int32_t)(val & 0x1U);
}
if (length & 7U) {
uint32_t val = *pSrc++;
length = length & 7U;
pDst[i+0] = (int32_t)(val >> 7);
if (length > 1U) {
pDst[i+1] = (int32_t)((val >> 6) & 0x1U);
if (length > 2U) {
pDst[i+2] = (int32_t)((val >> 5) & 0x1U);
if (length > 3U) {
pDst[i+3] = (int32_t)((val >> 4) & 0x1U);
if (length > 4U) {
pDst[i+4] = (int32_t)((val >> 3) & 0x1U);
if (length > 5U) {
pDst[i+5] = (int32_t)((val >> 2) & 0x1U);
if (length > 6U) {
pDst[i+6] = (int32_t)((val >> 1) & 0x1U);
}
}
}
}
}
}
}
}
static void convert_2u32s_C1R(const uint8_t* pSrc, int32_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)3U); i+=4U) {
uint32_t val = *pSrc++;
pDst[i+0] = (int32_t)( val >> 6);
pDst[i+1] = (int32_t)((val >> 4) & 0x3U);
pDst[i+2] = (int32_t)((val >> 2) & 0x3U);
pDst[i+3] = (int32_t)(val & 0x3U);
}
if (length & 3U) {
uint32_t val = *pSrc++;
length = length & 3U;
pDst[i+0] = (int32_t)(val >> 6);
if (length > 1U) {
pDst[i+1] = (int32_t)((val >> 4) & 0x3U);
if (length > 2U) {
pDst[i+2] = (int32_t)((val >> 2) & 0x3U);
}
}
}
}
static void convert_4u32s_C1R(const uint8_t* pSrc, int32_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)1U); i+=2U) {
uint32_t val = *pSrc++;
pDst[i+0] = (int32_t)(val >> 4);
pDst[i+1] = (int32_t)(val & 0xFU);
}
if (length & 1U) {
uint8_t val = *pSrc++;
pDst[i+0] = (int32_t)(val >> 4);
}
}
static void convert_6u32s_C1R(const uint8_t* pSrc, int32_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)3U); i+=4U) {
uint32_t val0 = *pSrc++;
uint32_t val1 = *pSrc++;
uint32_t val2 = *pSrc++;
pDst[i+0] = (int32_t)(val0 >> 2);
pDst[i+1] = (int32_t)(((val0 & 0x3U) << 4) | (val1 >> 4));
pDst[i+2] = (int32_t)(((val1 & 0xFU) << 2) | (val2 >> 6));
pDst[i+3] = (int32_t)(val2 & 0x3FU);
}
if (length & 3U) {
uint32_t val0 = *pSrc++;
length = length & 3U;
pDst[i+0] = (int32_t)(val0 >> 2);
if (length > 1U) {
uint32_t val1 = *pSrc++;
pDst[i+1] = (int32_t)(((val0 & 0x3U) << 4) | (val1 >> 4));
if (length > 2U) {
uint32_t val2 = *pSrc++;
pDst[i+2] = (int32_t)(((val1 & 0xFU) << 2) | (val2 >> 6));
}
}
}
}
static void convert_8u32s_C1R(const uint8_t* pSrc, int32_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < length; i++) {
pDst[i] = pSrc[i];
}
}
const convert_XXx32s_C1R convert_XXu32s_C1R_LUT[9] = {
NULL,
convert_1u32s_C1R,
convert_2u32s_C1R,
NULL,
convert_4u32s_C1R,
NULL,
convert_6u32s_C1R,
NULL,
convert_8u32s_C1R
};
static void convert_32s1u_C1R(const int32_t* pSrc, uint8_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)7U); i+=8U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = (uint32_t)pSrc[i+1];
uint32_t src2 = (uint32_t)pSrc[i+2];
uint32_t src3 = (uint32_t)pSrc[i+3];
uint32_t src4 = (uint32_t)pSrc[i+4];
uint32_t src5 = (uint32_t)pSrc[i+5];
uint32_t src6 = (uint32_t)pSrc[i+6];
uint32_t src7 = (uint32_t)pSrc[i+7];
*pDst++ = (uint8_t)((src0 << 7) | (src1 << 6) | (src2 << 5) | (src3 << 4) | (src4 << 3) | (src5 << 2) | (src6 << 1) | src7);
}
if (length & 7U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = 0U;
uint32_t src2 = 0U;
uint32_t src3 = 0U;
uint32_t src4 = 0U;
uint32_t src5 = 0U;
uint32_t src6 = 0U;
length = length & 7U;
if (length > 1U) {
src1 = (uint32_t)pSrc[i+1];
if (length > 2U) {
src2 = (uint32_t)pSrc[i+2];
if (length > 3U) {
src3 = (uint32_t)pSrc[i+3];
if (length > 4U) {
src4 = (uint32_t)pSrc[i+4];
if (length > 5U) {
src5 = (uint32_t)pSrc[i+5];
if (length > 6U) {
src6 = (uint32_t)pSrc[i+6];
}
}
}
}
}
}
*pDst++ = (uint8_t)((src0 << 7) | (src1 << 6) | (src2 << 5) | (src3 << 4) | (src4 << 3) | (src5 << 2) | (src6 << 1));
}
}
static void convert_32s2u_C1R(const int32_t* pSrc, uint8_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)3U); i+=4U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = (uint32_t)pSrc[i+1];
uint32_t src2 = (uint32_t)pSrc[i+2];
uint32_t src3 = (uint32_t)pSrc[i+3];
*pDst++ = (uint8_t)((src0 << 6) | (src1 << 4) | (src2 << 2) | src3);
}
if (length & 3U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = 0U;
uint32_t src2 = 0U;
length = length & 3U;
if (length > 1U) {
src1 = (uint32_t)pSrc[i+1];
if (length > 2U) {
src2 = (uint32_t)pSrc[i+2];
}
}
*pDst++ = (uint8_t)((src0 << 6) | (src1 << 4) | (src2 << 2));
}
}
static void convert_32s4u_C1R(const int32_t* pSrc, uint8_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)1U); i+=2U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = (uint32_t)pSrc[i+1];
*pDst++ = (uint8_t)((src0 << 4) | src1);
}
if (length & 1U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
*pDst++ = (uint8_t)((src0 << 4));
}
}
static void convert_32s6u_C1R(const int32_t* pSrc, uint8_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < (length & ~(size_t)3U); i+=4U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = (uint32_t)pSrc[i+1];
uint32_t src2 = (uint32_t)pSrc[i+2];
uint32_t src3 = (uint32_t)pSrc[i+3];
*pDst++ = (uint8_t)((src0 << 2) | (src1 >> 4));
*pDst++ = (uint8_t)(((src1 & 0xFU) << 4) | (src2 >> 2));
*pDst++ = (uint8_t)(((src2 & 0x3U) << 6) | src3);
}
if (length & 3U) {
uint32_t src0 = (uint32_t)pSrc[i+0];
uint32_t src1 = 0U;
uint32_t src2 = 0U;
length = length & 3U;
if (length > 1U) {
src1 = (uint32_t)pSrc[i+1];
if (length > 2U) {
src2 = (uint32_t)pSrc[i+2];
}
}
*pDst++ = (uint8_t)((src0 << 2) | (src1 >> 4));
if (length > 1U) {
*pDst++ = (uint8_t)(((src1 & 0xFU) << 4) | (src2 >> 2));
if (length > 2U) {
*pDst++ = (uint8_t)(((src2 & 0x3U) << 6));
}
}
}
}
static void convert_32s8u_C1R(const int32_t* pSrc, uint8_t* pDst, size_t length)
{
size_t i;
for (i = 0; i < length; ++i) {
pDst[i] = (uint8_t)pSrc[i];
}
}
const convert_32sXXx_C1R convert_32sXXu_C1R_LUT[9] = {
NULL,
convert_32s1u_C1R,
convert_32s2u_C1R,
NULL,
convert_32s4u_C1R,
NULL,
convert_32s6u_C1R,
NULL,
convert_32s8u_C1R
};
/* -->> -->> -->> -->>
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(TGA_HEADER_SIZE);
if ( fread(tga, TGA_HEADER_SIZE, 1, fp) != 1 )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
free(tga);
return 0 ;
}
id_len = (unsigned char)tga[0];
cmap_type = (unsigned char)tga[1];
(void)cmap_type;
image_type = (unsigned char)tga[2];
cmap_index = get_ushort(*(unsigned short*)(&tga[3]));
(void)cmap_index;
cmap_len = get_ushort(*(unsigned short*)(&tga[5]));
cmap_entry_size = (unsigned char)tga[7];
x_origin = get_ushort(*(unsigned short*)(&tga[8]));
(void)x_origin;
y_origin = get_ushort(*(unsigned short*)(&tga[10]));
(void)y_origin;
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 = // bits 0-3 are # of alpha bits per pixel
bits_per_pixel == 16 ? 1 :
bits_per_pixel == 32 ? 8 :
0;
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)) {
fclose(f);
return NULL;
}
/* We currently only support 24 & 32 bit tga's ... */
if (!((pixel_bit_depth == 24) || (pixel_bit_depth == 32))) {
fclose(f);
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) {
fclose(f);
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;
if( !fread(&b, 1, 1, f) )
{
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
opj_image_destroy(image);
fclose(f);
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);
fclose(f);
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);
fclose(f);
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);
fclose(f);
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);
fclose(f);
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);
fclose(f);
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);
fclose(f);
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);
}
}
fclose(f);
return image;
}
int imagetotga(opj_image_t * image, const char *outfile) {
int width, height, bpp, x, y;
opj_bool write_alpha;
int i, adjustR, adjustG, adjustB;
unsigned int alpha_channel;
float r,g,b,a;
unsigned char value;
float scale;
FILE *fdest;
size_t res;
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.");
fclose(fdest);
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, OPJ_TRUE)) {
fclose(fdest);
return 1;
}
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=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 ... */
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);
fclose(fdest);
return 1;
}
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);
fclose(fdest);
return 1;
}
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);
fclose(fdest);
return 1;
}
if (write_alpha) {
a = (float)(image->comps[alpha_channel].data[index]);
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);
fclose(fdest);
return 1;
}
}
}
}
fclose(fdest);
return 0;
}
/* -->> -->> -->> -->>
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 (c1 << 8) + c2;
else
return (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 (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;
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 = 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");
fclose(f);
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");
fclose(f);
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;
}
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 = 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(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 = 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;
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." );
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;
}
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));
res = fwrite(&byte, 1, 1, fdest);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", name);
if( total > 256 ) {
free(name);
}
fclose(fdest);
return 1;
}
}
}
/* dont need name anymore */
if( total > 256 ) {
free(name);
}
fclose(fdest);
}
return 0;
}
/* -->> -->> -->> -->>
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)
{
char *s;
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))
{
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;
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 = CLRSPC_GRAY;/* GRAY, GRAYA */
else
color_space = 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, numcomps * sizeof(opj_image_cmptparm_t));
for(i = 0; i < numcomps; i++)
{
cmptparm[i].prec = prec;
cmptparm[i].bpp = prec;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = subsampling_dx;
cmptparm[i].dy = subsampling_dy;
cmptparm[i].w = w;
cmptparm[i].h = h;
}
image = opj_image_create(numcomps, &cmptparm[0], color_space);
if(!image) { fclose(fp); 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((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] = (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");
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 *red, *green, *blue, *alpha;
int wr, hr, max;
int i, 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 = 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 (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 = image->comps[0].w; hr = 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;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
if(triple)
{
v = *green + adjustG; ++green;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
v = *blue + adjustB; ++blue;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}/* if(triple) */
if(has_alpha)
{
v = *alpha + adjustA; ++alpha;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}
continue;
} /* if(two) */
/* prec <= 8: */
fprintf(fdest, "%c", (unsigned char)*red++);
if(triple)
fprintf(fdest, "%c%c",(unsigned char)*green++, (unsigned char)*blue++);
if(has_alpha)
fprintf(fdest, "%c", (unsigned char)*alpha++);
} /* 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);
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 = image->comps[compno].w; hr = image->comps[compno].h;
prec = 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;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
if(has_alpha)
{
v = *alpha++;
/* netpbm: */
fprintf(fdest, "%c%c",(unsigned char)(v>>8), (unsigned char)v);
}
}/* for(i */
}
else /* prec <= 8 */
{
for(i = 0; i < wr * hr; ++i)
{
fprintf(fdest, "%c", (unsigned char)(*red + adjustR)); ++red;
}
}
fclose(fdest);
} /* for (compno */
free(destname);
return 0;
}/* imagetopnm() */
/* -->> -->> -->> -->>
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);
free(cmptparm);
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");
fclose(f);
free(cmptparm);
opj_image_destroy(image);
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");
fclose(f);
free(cmptparm);
opj_image_destroy(image);
return NULL;
}
value = temp << 8;
if (!fread(&temp, 1, 1, f)) {
fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
fclose(f);
free(cmptparm);
opj_image_destroy(image);
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");
fclose(f);
free(cmptparm);
opj_image_destroy(image);
return NULL;
}
if (fread(&ch, 1, 1, f)) {
fprintf(stderr,"Warning. End of raw file not reached... processing anyway\n");
}
fclose(f);
free(cmptparm);
return image;
}
int imagetoraw(opj_image_t * image, const char *outfile)
{
FILE *rawFile = NULL;
size_t res;
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);
res = fwrite(&curr, sizeof(signed char), 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
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);
res = fwrite(&curr, sizeof(unsigned char), 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
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);
res = fwrite(&temp, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
temp = (unsigned char) curr;
res = fwrite(&temp, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
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);
res = fwrite(&temp, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
temp = (unsigned char) curr;
res = fwrite(&temp, 1, 1, rawFile);
if( res < 1 ) {
fprintf(stderr, "failed to write 1 byte for %s\n", outfile);
fclose(rawFile);
return 1;
}
ptr++;
}
}
}
}
else if (image->comps[compno].prec <= 32)
{
fprintf(stderr,"More than 16 bits per component no handled yet\n");
fclose(rawFile);
return 1;
}
else
{
fprintf(stderr,"Error: invalid precision: %d\n", image->comps[compno].prec);
fclose(rawFile);
return 1;
}
}
fclose(rawFile);
return 0;
}
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