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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>
#include <limits.h>
#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;
component->bpp = 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;
}
/* planar / interleaved conversions */
/* used by PNG/TIFF */
static void convert_32s_C1P1(const OPJ_INT32* pSrc, OPJ_INT32* const* pDst,
OPJ_SIZE_T length)
{
memcpy(pDst[0], pSrc, length * sizeof(OPJ_INT32));
}
static void convert_32s_C2P2(const OPJ_INT32* pSrc, OPJ_INT32* const* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
OPJ_INT32* pDst0 = pDst[0];
OPJ_INT32* 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 OPJ_INT32* pSrc, OPJ_INT32* const* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
OPJ_INT32* pDst0 = pDst[0];
OPJ_INT32* pDst1 = pDst[1];
OPJ_INT32* 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 OPJ_INT32* pSrc, OPJ_INT32* const* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
OPJ_INT32* pDst0 = pDst[0];
OPJ_INT32* pDst1 = pDst[1];
OPJ_INT32* pDst2 = pDst[2];
OPJ_INT32* 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(OPJ_INT32 const* const* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length, OPJ_INT32 adjust)
{
OPJ_SIZE_T i;
const OPJ_INT32* pSrc0 = pSrc[0];
for (i = 0; i < length; i++) {
pDst[i] = pSrc0[i] + adjust;
}
}
static void convert_32s_P2C2(OPJ_INT32 const* const* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length, OPJ_INT32 adjust)
{
OPJ_SIZE_T i;
const OPJ_INT32* pSrc0 = pSrc[0];
const OPJ_INT32* 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(OPJ_INT32 const* const* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length, OPJ_INT32 adjust)
{
OPJ_SIZE_T i;
const OPJ_INT32* pSrc0 = pSrc[0];
const OPJ_INT32* pSrc1 = pSrc[1];
const OPJ_INT32* 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(OPJ_INT32 const* const* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length, OPJ_INT32 adjust)
{
OPJ_SIZE_T i;
const OPJ_INT32* pSrc0 = pSrc[0];
const OPJ_INT32* pSrc1 = pSrc[1];
const OPJ_INT32* pSrc2 = pSrc[2];
const OPJ_INT32* 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 OPJ_BYTE* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)7U); i += 8U) {
OPJ_UINT32 val = *pSrc++;
pDst[i + 0] = (OPJ_INT32)(val >> 7);
pDst[i + 1] = (OPJ_INT32)((val >> 6) & 0x1U);
pDst[i + 2] = (OPJ_INT32)((val >> 5) & 0x1U);
pDst[i + 3] = (OPJ_INT32)((val >> 4) & 0x1U);
pDst[i + 4] = (OPJ_INT32)((val >> 3) & 0x1U);
pDst[i + 5] = (OPJ_INT32)((val >> 2) & 0x1U);
pDst[i + 6] = (OPJ_INT32)((val >> 1) & 0x1U);
pDst[i + 7] = (OPJ_INT32)(val & 0x1U);
}
if (length & 7U) {
OPJ_UINT32 val = *pSrc++;
length = length & 7U;
pDst[i + 0] = (OPJ_INT32)(val >> 7);
if (length > 1U) {
pDst[i + 1] = (OPJ_INT32)((val >> 6) & 0x1U);
if (length > 2U) {
pDst[i + 2] = (OPJ_INT32)((val >> 5) & 0x1U);
if (length > 3U) {
pDst[i + 3] = (OPJ_INT32)((val >> 4) & 0x1U);
if (length > 4U) {
pDst[i + 4] = (OPJ_INT32)((val >> 3) & 0x1U);
if (length > 5U) {
pDst[i + 5] = (OPJ_INT32)((val >> 2) & 0x1U);
if (length > 6U) {
pDst[i + 6] = (OPJ_INT32)((val >> 1) & 0x1U);
}
}
}
}
}
}
}
}
static void convert_2u32s_C1R(const OPJ_BYTE* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)3U); i += 4U) {
OPJ_UINT32 val = *pSrc++;
pDst[i + 0] = (OPJ_INT32)(val >> 6);
pDst[i + 1] = (OPJ_INT32)((val >> 4) & 0x3U);
pDst[i + 2] = (OPJ_INT32)((val >> 2) & 0x3U);
pDst[i + 3] = (OPJ_INT32)(val & 0x3U);
}
if (length & 3U) {
OPJ_UINT32 val = *pSrc++;
length = length & 3U;
pDst[i + 0] = (OPJ_INT32)(val >> 6);
if (length > 1U) {
pDst[i + 1] = (OPJ_INT32)((val >> 4) & 0x3U);
if (length > 2U) {
pDst[i + 2] = (OPJ_INT32)((val >> 2) & 0x3U);
}
}
}
}
static void convert_4u32s_C1R(const OPJ_BYTE* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)1U); i += 2U) {
OPJ_UINT32 val = *pSrc++;
pDst[i + 0] = (OPJ_INT32)(val >> 4);
pDst[i + 1] = (OPJ_INT32)(val & 0xFU);
}
if (length & 1U) {
OPJ_UINT8 val = *pSrc++;
pDst[i + 0] = (OPJ_INT32)(val >> 4);
}
}
static void convert_6u32s_C1R(const OPJ_BYTE* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)3U); i += 4U) {
OPJ_UINT32 val0 = *pSrc++;
OPJ_UINT32 val1 = *pSrc++;
OPJ_UINT32 val2 = *pSrc++;
pDst[i + 0] = (OPJ_INT32)(val0 >> 2);
pDst[i + 1] = (OPJ_INT32)(((val0 & 0x3U) << 4) | (val1 >> 4));
pDst[i + 2] = (OPJ_INT32)(((val1 & 0xFU) << 2) | (val2 >> 6));
pDst[i + 3] = (OPJ_INT32)(val2 & 0x3FU);
}
if (length & 3U) {
OPJ_UINT32 val0 = *pSrc++;
length = length & 3U;
pDst[i + 0] = (OPJ_INT32)(val0 >> 2);
if (length > 1U) {
OPJ_UINT32 val1 = *pSrc++;
pDst[i + 1] = (OPJ_INT32)(((val0 & 0x3U) << 4) | (val1 >> 4));
if (length > 2U) {
OPJ_UINT32 val2 = *pSrc++;
pDst[i + 2] = (OPJ_INT32)(((val1 & 0xFU) << 2) | (val2 >> 6));
}
}
}
}
static void convert_8u32s_C1R(const OPJ_BYTE* pSrc, OPJ_INT32* pDst,
OPJ_SIZE_T length)
{
OPJ_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 OPJ_INT32* pSrc, OPJ_BYTE* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)7U); i += 8U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = (OPJ_UINT32)pSrc[i + 1];
OPJ_UINT32 src2 = (OPJ_UINT32)pSrc[i + 2];
OPJ_UINT32 src3 = (OPJ_UINT32)pSrc[i + 3];
OPJ_UINT32 src4 = (OPJ_UINT32)pSrc[i + 4];
OPJ_UINT32 src5 = (OPJ_UINT32)pSrc[i + 5];
OPJ_UINT32 src6 = (OPJ_UINT32)pSrc[i + 6];
OPJ_UINT32 src7 = (OPJ_UINT32)pSrc[i + 7];
*pDst++ = (OPJ_BYTE)((src0 << 7) | (src1 << 6) | (src2 << 5) | (src3 << 4) |
(src4 << 3) | (src5 << 2) | (src6 << 1) | src7);
}
if (length & 7U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = 0U;
OPJ_UINT32 src2 = 0U;
OPJ_UINT32 src3 = 0U;
OPJ_UINT32 src4 = 0U;
OPJ_UINT32 src5 = 0U;
OPJ_UINT32 src6 = 0U;
length = length & 7U;
if (length > 1U) {
src1 = (OPJ_UINT32)pSrc[i + 1];
if (length > 2U) {
src2 = (OPJ_UINT32)pSrc[i + 2];
if (length > 3U) {
src3 = (OPJ_UINT32)pSrc[i + 3];
if (length > 4U) {
src4 = (OPJ_UINT32)pSrc[i + 4];
if (length > 5U) {
src5 = (OPJ_UINT32)pSrc[i + 5];
if (length > 6U) {
src6 = (OPJ_UINT32)pSrc[i + 6];
}
}
}
}
}
}
*pDst++ = (OPJ_BYTE)((src0 << 7) | (src1 << 6) | (src2 << 5) | (src3 << 4) |
(src4 << 3) | (src5 << 2) | (src6 << 1));
}
}
static void convert_32s2u_C1R(const OPJ_INT32* pSrc, OPJ_BYTE* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)3U); i += 4U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = (OPJ_UINT32)pSrc[i + 1];
OPJ_UINT32 src2 = (OPJ_UINT32)pSrc[i + 2];
OPJ_UINT32 src3 = (OPJ_UINT32)pSrc[i + 3];
*pDst++ = (OPJ_BYTE)((src0 << 6) | (src1 << 4) | (src2 << 2) | src3);
}
if (length & 3U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = 0U;
OPJ_UINT32 src2 = 0U;
length = length & 3U;
if (length > 1U) {
src1 = (OPJ_UINT32)pSrc[i + 1];
if (length > 2U) {
src2 = (OPJ_UINT32)pSrc[i + 2];
}
}
*pDst++ = (OPJ_BYTE)((src0 << 6) | (src1 << 4) | (src2 << 2));
}
}
static void convert_32s4u_C1R(const OPJ_INT32* pSrc, OPJ_BYTE* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)1U); i += 2U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = (OPJ_UINT32)pSrc[i + 1];
*pDst++ = (OPJ_BYTE)((src0 << 4) | src1);
}
if (length & 1U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
*pDst++ = (OPJ_BYTE)((src0 << 4));
}
}
static void convert_32s6u_C1R(const OPJ_INT32* pSrc, OPJ_BYTE* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < (length & ~(OPJ_SIZE_T)3U); i += 4U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = (OPJ_UINT32)pSrc[i + 1];
OPJ_UINT32 src2 = (OPJ_UINT32)pSrc[i + 2];
OPJ_UINT32 src3 = (OPJ_UINT32)pSrc[i + 3];
*pDst++ = (OPJ_BYTE)((src0 << 2) | (src1 >> 4));
*pDst++ = (OPJ_BYTE)(((src1 & 0xFU) << 4) | (src2 >> 2));
*pDst++ = (OPJ_BYTE)(((src2 & 0x3U) << 6) | src3);
}
if (length & 3U) {
OPJ_UINT32 src0 = (OPJ_UINT32)pSrc[i + 0];
OPJ_UINT32 src1 = 0U;
OPJ_UINT32 src2 = 0U;
length = length & 3U;
if (length > 1U) {
src1 = (OPJ_UINT32)pSrc[i + 1];
if (length > 2U) {
src2 = (OPJ_UINT32)pSrc[i + 2];
}
}
*pDst++ = (OPJ_BYTE)((src0 << 2) | (src1 >> 4));
if (length > 1U) {
*pDst++ = (OPJ_BYTE)(((src1 & 0xFU) << 4) | (src2 >> 2));
if (length > 2U) {
*pDst++ = (OPJ_BYTE)(((src2 & 0x3U) << 6));
}
}
}
}
static void convert_32s8u_C1R(const OPJ_INT32* pSrc, OPJ_BYTE* pDst,
OPJ_SIZE_T length)
{
OPJ_SIZE_T i;
for (i = 0; i < length; ++i) {
pDst[i] = (OPJ_BYTE)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 */
/* Returns a ushort from a little-endian serialized value */
static unsigned short get_tga_ushort(const unsigned char *data)
{
return (unsigned short)(data[0] | (data[1] << 8));
}
#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[TGA_HEADER_SIZE];
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;
}
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 = tga[0];
/*cmap_type = tga[1];*/
image_type = tga[2];
/*cmap_index = get_tga_ushort(&tga[3]);*/
cmap_len = get_tga_ushort(&tga[5]);
cmap_entry_size = tga[7];
#if 0
x_origin = get_tga_ushort(&tga[8]);
y_origin = get_tga_ushort(&tga[10]);
#endif
image_w = get_tga_ushort(&tga[12]);
image_h = get_tga_ushort(&tga[14]);
pixel_depth = tga[16];
image_desc = tga[17];
*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 (id == 0) {
fprintf(stderr, "tga_readheader: memory out\n");
return 0;
}
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 OPJ_UINT16 swap16(OPJ_UINT16 x)
{
return (OPJ_UINT16)(((x & 0x00ffU) << 8) | ((x & 0xff00U) >> 8));
}
#endif
static int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height,
OPJ_BOOL flip_image)
{
OPJ_UINT16 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)) {
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 = OPJ_CLRSPC_GRAY;
numcomps = save_alpha ? 2 : 1;
} else {
numcomps = save_alpha ? 4 : 3;
color_space = OPJ_CLRSPC_SRGB;
}
/* If the declared file size is > 10 MB, check that the file is big */
/* enough to avoid excessive memory allocations */
if (image_height != 0 &&
image_width > 10000000U / image_height / (OPJ_UINT32)numcomps) {
char ch;
OPJ_UINT64 expected_file_size =
(OPJ_UINT64)image_width * image_height * (OPJ_UINT32)numcomps;
long curpos = ftell(f);
if (expected_file_size > (OPJ_UINT64)INT_MAX) {
expected_file_size = (OPJ_UINT64)INT_MAX;
}
fseek(f, (long)expected_file_size - 1, SEEK_SET);
if (fread(&ch, 1, 1, f) != 1) {
fclose(f);
return NULL;
}
fseek(f, curpos, SEEK_SET);
}
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) {
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 = !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);
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;
unsigned int i;
int adjustR, adjustG = 0, adjustB = 0, 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)
|| (image->comps[0].sgnd != image->comps[i + 1].sgnd)) {
fclose(fdest);
fprintf(stderr,
"Unable to create a tga file with such J2K image charateristics.\n");
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);
if (image->numcomps >= 3) {
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;
OPJ_UINT64 expected_file_size;
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%31[ \t]%c%c%31[ \t+-]%d%31[ \t]%d%31[ \t]%d", temp, &endian1,
&endian2, signtmp, &prec, temp, &w, temp, &h) != 9) {
fclose(f);
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 {
fclose(f);
fprintf(stderr, "Bad pgx header, please check input file\n");
return NULL;
}
if (w < 1 || h < 1 || prec < 1 || prec > 31) {
fclose(f);
fprintf(stderr, "Bad pgx header, please check input file\n");
return NULL;
}
expected_file_size =
(OPJ_UINT64)w * (OPJ_UINT64)h * (prec > 16 ? 4 : prec > 8 ? 2 : 1);
if (expected_file_size > 10000000U) {
char ch;
long curpos = ftell(f);
if (expected_file_size > (OPJ_UINT64)INT_MAX) {
expected_file_size = (OPJ_UINT64)INT_MAX;
}
fseek(f, (long)expected_file_size - 1, SEEK_SET);
if (fread(&ch, 1, 1, f) != 1) {
fprintf(stderr, "File too short\n");
fclose(f);
return NULL;
}
fseek(f, curpos, SEEK_SET);
}
/* 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);
if (name == NULL) {
fprintf(stderr, "imagetopgx: memory out\n");
goto fin;
}
}
memcpy(name, outfile, dotpos);
sprintf(name + dotpos, "_%u.pgx", compno);
fdest = fopen(name, "wb");
/* don't need name anymore */
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
if (total > 256) {
free(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;
}
if (nbytes == 1) {
unsigned char* line_buffer = malloc((size_t)w);
if (line_buffer == NULL) {
fprintf(stderr, "Out of memory");
if (total > 256) {
free(name);
}
goto fin;
}
for (j = 0; j < h; j++) {
if (comp->prec == 8 && comp->sgnd == 0) {
for (i = 0; i < w; i++) {
line_buffer[i] = (unsigned char)CLAMP(image->comps[compno].data[j * w + i], 0,
255);
}
} else {
for (i = 0; i < w; i++) {
line_buffer[i] = (unsigned char)
clamp(image->comps[compno].data[j * w + i],
(int)comp->prec, (int)comp->sgnd);
}
}
res = fwrite(line_buffer, 1, (size_t)w, fdest);
if (res != (size_t)w) {
fprintf(stderr, "failed to write %d bytes for %s\n", w, name);
if (total > 256) {
free(name);
}
free(line_buffer);
goto fin;
}
}
free(line_buffer);
} else {
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);
if (total > 256) {
free(name);
}
goto fin;
}
}
}
}
if (total > 256) {
free(name);
}
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)
{
if (s != NULL) {
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 = 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, 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 = 0;
while (fgets(line, 250, reader)) {
char *s;
int allow_null = 0;
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) */
/* Here format is in range [1,6] */
if (ph->width == 0) {
s = skip_int(s, &ph->width);
if ((s == NULL) || (*s == 0) || (ph->width < 1)) {
return;
}
allow_null = 1;
}
if (ph->height == 0) {
s = skip_int(s, &ph->height);
if ((s == NULL) && allow_null) {
continue;
}
if ((s == NULL) || (*s == 0) || (ph->height < 1)) {
return;
}
if (format == 1 || format == 4) {
break;
}
allow_null = 1;
}
/* here, format is in P2, P3, P5, P6 */
s = skip_int(s, &ph->maxval);
if ((s == NULL) && allow_null) {
continue;
}
if ((s == NULL) || (*s == 0)) {
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 (ttype) {
ph->ok = 1;
}
} else {
ph->ok = 1;
if (format == 1 || format == 4) {
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;
}
if (header_info.width == 0
|| header_info.height == 0
|| (header_info.format == 7 && header_info.depth == 0)) {
fclose(fp);
return NULL;
}
/* This limitation could be removed by making sure to use size_t below */
if (header_info.height != 0 &&
header_info.width > INT_MAX / header_info.height) {
fprintf(stderr, "pnmtoimage:Image %dx%d too big!\n",
header_info.width, header_info.height);
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, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
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, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
if (one) {
image->comps[compno].data[i] = c0;
} else {
if (!fread(&c1, 1, 1, fp)) {
fprintf(stderr, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
/* 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, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
image->comps[0].data[i] = (index ? 0 : 255);
}
} else if (format == 4) {
int x, y, bit;
int 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 = getc(fp);
if (uc == EOF) {
fprintf(stderr, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
}
image->comps[0].data[i] = ((((unsigned char)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, "Missing data. Quitting.\n");
opj_image_destroy(image);
fclose(fp);
return NULL;
}
image->comps[0].data[i] = (uc & 1) ? 0 : 255;
}
}
fclose(fp);
return image;
}/* pnmtoimage() */
static int are_comps_similar(opj_image_t * image)
{
unsigned int i;
for (i = 1; i < image->numcomps; i++) {
if (image->comps[0].dx != image->comps[i].dx ||
image->comps[0].dy != image->comps[i].dy ||
(i <= 2 &&
(image->comps[0].prec != image->comps[i].prec ||
image->comps[0].sgnd != image->comps[i].sgnd))) {
return OPJ_FALSE;
}
}
return OPJ_TRUE;
}
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 &&
are_comps_similar(image)) {
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 (red == NULL) {
fprintf(stderr,
"imagetopnm: planes[%d] == NULL.\n", 0);
fprintf(stderr, "\tAborting\n");
fclose(fdest);
return fails;
}
if (triple) {
green = image->comps[1].data;
blue = image->comps[2].data;
for (i = 1; i <= 2; i++) {
if (image->comps[i].data == NULL) {
fprintf(stderr,
"imagetopnm: planes[%d] == NULL.\n", i);
fprintf(stderr, "\tAborting\n");
fclose(fdest);
return fails;
}
}
} 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 %u\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);
if (destname == NULL) {
fprintf(stderr, "imagetopnm: memory out\n");
return 1;
}
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;
memcpy(destname, outfile, dotpos);
sprintf(destname + dotpos, "_%u.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;
if (!red) {
fclose(fdest);
continue;
}
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");
fclose(f);
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");
opj_image_destroy(image);
fclose(f);
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].dy);
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");
opj_image_destroy(image);
fclose(f);
return NULL;
}
if (!fread(&temp2, 1, 1, f)) {
fprintf(stderr, "Error reading raw file. End of file probably reached.\n");
opj_image_destroy(image);
fclose(f);
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");
opj_image_destroy(image);
fclose(f);
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, numcomps;
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;
}
numcomps = image->numcomps;
if (numcomps > 4) {
numcomps = 4;
}
for (compno = 1; compno < numcomps; ++compno) {
if (image->comps[0].dx != image->comps[compno].dx) {
break;
}
if (image->comps[0].dy != image->comps[compno].dy) {
break;
}
if (image->comps[0].prec != image->comps[compno].prec) {
break;
}
if (image->comps[0].sgnd != image->comps[compno].sgnd) {
break;
}
}
if (compno != numcomps) {
fprintf(stderr,
"imagetoraw_common: All components shall have the same subsampling, same bit depth, same sign.\n");
fprintf(stderr, "\tAborting\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 %u 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 not 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);
}
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