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openjpeg/src/bin/jp2/convertbmp.c

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[trunk] fixed BMP reading for 8bpp when width & 3 == 1 Update issue 203
2014-12-20 19:45:53 +01:00
/*
* 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 "openjpeg.h"
#include "convert.h"
typedef struct {
OPJ_UINT16 bfType; /* 'BM' for Bitmap (19776) */
OPJ_UINT32 bfSize; /* Size of the file */
OPJ_UINT16 bfReserved1; /* Reserved : 0 */
OPJ_UINT16 bfReserved2; /* Reserved : 0 */
OPJ_UINT32 bfOffBits; /* Offset */
} OPJ_BITMAPFILEHEADER;
typedef struct {
OPJ_UINT32 biSize; /* Size of the structure in bytes */
OPJ_UINT32 biWidth; /* Width of the image in pixels */
OPJ_UINT32 biHeight; /* Heigth of the image in pixels */
OPJ_UINT16 biPlanes; /* 1 */
OPJ_UINT16 biBitCount; /* Number of color bits by pixels */
OPJ_UINT32 biCompression; /* Type of encoding 0: none 1: RLE8 2: RLE4 */
OPJ_UINT32 biSizeImage; /* Size of the image in bytes */
OPJ_UINT32 biXpelsPerMeter; /* Horizontal (X) resolution in pixels/meter */
OPJ_UINT32 biYpelsPerMeter; /* Vertical (Y) resolution in pixels/meter */
OPJ_UINT32 biClrUsed; /* Number of color used in the image (0: ALL) */
OPJ_UINT32 biClrImportant; /* Number of important color (0: ALL) */
} OPJ_BITMAPINFOHEADER;
static void opj_applyLUT8u_8u32s_C1R(
OPJ_UINT8 const* pSrc, OPJ_INT32 srcStride,
OPJ_INT32* pDst, OPJ_INT32 dstStride,
OPJ_UINT8 const* pLUT,
OPJ_UINT32 width, OPJ_UINT32 height)
{
OPJ_UINT32 y;
for (y = height; y != 0U; --y) {
OPJ_UINT32 x;
for(x = 0; x < width; x++)
{
pDst[x] = pLUT[pSrc[x]];
}
pSrc += srcStride;
pDst += dstStride;
}
}
static void opj_applyLUT8u_8u32s_C1P3R(
OPJ_UINT8 const* pSrc, OPJ_INT32 srcStride,
OPJ_INT32* const* pDst, OPJ_INT32 const* pDstStride,
OPJ_UINT8 const* const* pLUT,
OPJ_UINT32 width, OPJ_UINT32 height)
{
OPJ_UINT32 y;
OPJ_INT32* pR = pDst[0];
OPJ_INT32* pG = pDst[1];
OPJ_INT32* pB = pDst[2];
OPJ_UINT8 const* pLUT_R = pLUT[0];
OPJ_UINT8 const* pLUT_G = pLUT[1];
OPJ_UINT8 const* pLUT_B = pLUT[2];
for (y = height; y != 0U; --y) {
OPJ_UINT32 x;
for(x = 0; x < width; x++)
{
OPJ_UINT8 idx = pSrc[x];
pR[x] = pLUT_R[idx];
pG[x] = pLUT_G[idx];
pB[x] = pLUT_B[idx];
}
pSrc += srcStride;
pR += pDstStride[0];
pG += pDstStride[1];
pB += pDstStride[2];
}
}
static opj_image_t* bmp24toimage(FILE *IN, const OPJ_BITMAPFILEHEADER* File_h, const OPJ_BITMAPINFOHEADER* Info_h, const opj_cparameters_t *parameters)
{
opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */
opj_image_t * image = NULL;
int i, index;
OPJ_UINT32 width, height, stride;
OPJ_UINT32 x, y;
OPJ_UINT8 *pData = NULL;
const OPJ_UINT8 *pSrc = NULL;
width = Info_h->biWidth;
height = Info_h->biHeight;
/* initialize image components */
memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
for(i = 0; i < 3; i++)
{
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = (OPJ_UINT32)parameters->subsampling_dx;
cmptparm[i].dy = (OPJ_UINT32)parameters->subsampling_dy;
cmptparm[i].w = (OPJ_UINT32)width;
cmptparm[i].h = (OPJ_UINT32)height;
}
/* create the image */
image = opj_image_create(3U, &cmptparm[0], OPJ_CLRSPC_SRGB);
if(!image)
{
return NULL;
}
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = image->x0 + (OPJ_UINT32)(width - 1U) * (OPJ_UINT32)parameters->subsampling_dx + 1U;
image->y1 = image->y0 + (OPJ_UINT32)(height - 1U) * (OPJ_UINT32)parameters->subsampling_dy + 1U;
/* set image data */
/* Place the cursor at the beginning of the image information */
fseek(IN, 0, SEEK_SET);
fseek(IN, (long)File_h->bfOffBits, SEEK_SET);
stride = width * 3U;
/* line is 32 bits aligned */
if (stride & 3U) {
stride += 4U - (stride & 3U);
}
pData = (OPJ_UINT8 *)malloc(stride * height * sizeof(OPJ_UINT8));
if ( fread(pData, sizeof(OPJ_UINT8), stride * height, IN) != (stride * height) )
{
free(pData);
opj_image_destroy(image);
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return NULL;
}
index = 0;
pSrc = pData + (height - 1U) * stride;
for(y = 0; y < height; y++)
{
for(x = 0; x < width; x++)
{
image->comps[0].data[index] = pSrc[3*x+2]; /* R */
image->comps[1].data[index] = pSrc[3*x+1]; /* G */
image->comps[2].data[index] = pSrc[3*x+0]; /* B */
index++;
}
pSrc -= stride;
}
free(pData);
return image;
}
static opj_image_t* bmp8toimage(FILE *IN, const OPJ_BITMAPFILEHEADER* File_h, const OPJ_BITMAPINFOHEADER* Info_h, const opj_cparameters_t *parameters)
{
OPJ_UINT8 lut_R[256], lut_G[256], lut_B[256];
opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */
opj_image_t * image = NULL;
OPJ_SIZE_T index;
OPJ_UINT32 i, palette_len;
OPJ_UINT32 width, height, stride;
OPJ_UINT8 *pData = NULL;
const OPJ_UINT8 *pSrc = NULL;
OPJ_UINT32 numcmpts = 1U; /* grayscale by default */
width = Info_h->biWidth;
height = Info_h->biHeight;
/* initialize */
memset(&cmptparm[0], 0, sizeof(cmptparm));
memset(&lut_R[0], 0, sizeof(lut_R));
memset(&lut_G[0], 0, sizeof(lut_G));
memset(&lut_B[0], 0, sizeof(lut_B));
palette_len = Info_h->biClrUsed;
if ((palette_len == 0U) || (palette_len > 256U)) {
palette_len = 256U;
}
/* Load palette */
{
OPJ_UINT8 has_color = 0U;
for (i = 0; i < palette_len; i++) {
lut_B[i] = (OPJ_UINT8)getc(IN);
lut_G[i] = (OPJ_UINT8)getc(IN);
lut_R[i] = (OPJ_UINT8)getc(IN);
getc(IN); /* padding */
has_color |= lut_B[i] ^ (lut_G[i] | lut_R[i]);
}
if(has_color) {
numcmpts = 3;
}
}
for(i = 0; i < numcmpts; i++)
{
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = (OPJ_UINT32)parameters->subsampling_dx;
cmptparm[i].dy = (OPJ_UINT32)parameters->subsampling_dy;
cmptparm[i].w = width;
cmptparm[i].h = height;
}
/* create the image */
image = opj_image_create(numcmpts, &cmptparm[0], (numcmpts == 1U) ? OPJ_CLRSPC_GRAY : OPJ_CLRSPC_SRGB);
if(!image)
{
return NULL;
}
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = image->x0 + (width - 1U) * (OPJ_UINT32)parameters->subsampling_dx + 1U;
image->y1 = image->y0 + (height - 1U) * (OPJ_UINT32)parameters->subsampling_dy + 1U;
/* set image data */
/* Place the cursor at the beginning of the image information */
fseek(IN, 0, SEEK_SET);
fseek(IN, (long)File_h->bfOffBits, SEEK_SET);
stride = width;
/* line is 32 bits aligned */
if (stride & 3U) {
stride += 4U - (stride & 3U);
}
pData = (OPJ_UINT8 *)malloc(stride * height * sizeof(OPJ_UINT8));
if ( fread(pData, sizeof(OPJ_UINT8), stride * height, IN) != (stride * height) )
{
free(pData);
opj_image_destroy(image);
fprintf(stderr, "\nError: fread return a number of element different from the expected.\n");
return NULL;
}
index = 0;
pSrc = pData + (height - 1U) * stride;
if (numcmpts == 1U) {
opj_applyLUT8u_8u32s_C1R(pSrc, -(OPJ_INT32)stride, image->comps[0].data, (OPJ_INT32)width, lut_R, width, height);
}
else {
OPJ_INT32* pDst[] = { image->comps[0].data, image->comps[1].data, image->comps[2].data };
OPJ_INT32 pDstStride[] = { (OPJ_INT32)width, (OPJ_INT32)width, (OPJ_INT32)width };
OPJ_UINT8 const* pLUT[] = { lut_R, lut_G, lut_B };
opj_applyLUT8u_8u32s_C1P3R(pSrc, -(OPJ_INT32)stride, pDst, pDstStride, pLUT, width, height);
}
free(pData);
return image;
}
static opj_image_t* bmprle8toimage(FILE *IN, const OPJ_BITMAPFILEHEADER* File_h, const OPJ_BITMAPINFOHEADER* Info_h, const opj_cparameters_t *parameters)
{
OPJ_UINT8 lut_R[256], lut_G[256], lut_B[256];
opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */
opj_image_t * image = NULL;
OPJ_SIZE_T index;
OPJ_UINT32 i, palette_len;
OPJ_UINT32 x, y, width, height;
OPJ_UINT8 *pData = NULL, *pix;
const OPJ_UINT8 *beyond;
OPJ_UINT32 numcmpts = 1U; /* grayscale by default */
width = Info_h->biWidth;
height = Info_h->biHeight;
/* initialize */
memset(&cmptparm[0], 0, sizeof(cmptparm));
memset(&lut_R[0], 0, sizeof(lut_R));
memset(&lut_G[0], 0, sizeof(lut_G));
memset(&lut_B[0], 0, sizeof(lut_B));
palette_len = Info_h->biClrUsed;
if ((palette_len == 0U) || (palette_len > 256U)) {
palette_len = 256U;
}
/* Load palette */
{
OPJ_UINT8 has_color = 0U;
for (i = 0; i < palette_len; i++) {
lut_B[i] = (OPJ_UINT8)getc(IN);
lut_G[i] = (OPJ_UINT8)getc(IN);
lut_R[i] = (OPJ_UINT8)getc(IN);
getc(IN); /* padding */
has_color |= lut_B[i] ^ (lut_G[i] | lut_R[i]);
}
if(has_color) {
numcmpts = 3;
}
}
for(i = 0; i < numcmpts; i++)
{
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = (OPJ_UINT32)parameters->subsampling_dx;
cmptparm[i].dy = (OPJ_UINT32)parameters->subsampling_dy;
cmptparm[i].w = width;
cmptparm[i].h = height;
}
/* create the image */
image = opj_image_create(numcmpts, &cmptparm[0], (numcmpts == 1U) ? OPJ_CLRSPC_GRAY : OPJ_CLRSPC_SRGB);
if(!image)
{
return NULL;
}
/* set image offset and reference grid */
image->x0 = (OPJ_UINT32)parameters->image_offset_x0;
image->y0 = (OPJ_UINT32)parameters->image_offset_y0;
image->x1 = image->x0 + (width - 1U) * (OPJ_UINT32)parameters->subsampling_dx + 1U;
image->y1 = image->y0 + (height - 1U) * (OPJ_UINT32)parameters->subsampling_dy + 1U;
/* set image data */
/* Place the cursor at the beginning of the image information */
fseek(IN, 0, SEEK_SET);
fseek(IN, (long)File_h->bfOffBits, SEEK_SET);
pData = (OPJ_UINT8 *) calloc(1, width * height * sizeof(OPJ_UINT8));
beyond = pData + width * height;
pix = (OPJ_UINT8 *)(beyond - width);
x = y = 0U;
while (y < height)
{
int c = getc(IN);
if (c) {
int j;
OPJ_UINT8 c1 = (OPJ_UINT8)getc(IN);
for (j = 0; (j < c) && (x < width) && ((OPJ_SIZE_T)pix < (OPJ_SIZE_T)beyond); j++, x++, pix++) {
*pix = c1;
}
}
else {
c = getc(IN);
if (c == 0x00) { /* EOL */
x = 0;
++y;
pix = pData + (height - y - 1U) * width + x;
}
else if (c == 0x01) { /* EOP */
break;
}
else if (c == 0x02) { /* MOVE by dxdy */
c = getc(IN);
x += (OPJ_UINT32)c;
c = getc(IN);
y += (OPJ_UINT32)c;
pix = pData + (height - y - 1U) * width + x;
}
else /* 03 .. 255 */
{
int j;
for (j = 0; (j < c) && (x < width) && ((OPJ_SIZE_T)pix < (OPJ_SIZE_T)beyond); j++, x++, pix++)
{
OPJ_UINT8 c1 = (OPJ_UINT8)getc(IN);
*pix = c1;
}
if ((OPJ_UINT32)c & 1U) { /* skip padding byte */
getc(IN);
}
}
}
}/* while() */
index = 0;
if (numcmpts == 1) {
opj_applyLUT8u_8u32s_C1R(pData, (OPJ_INT32)width, image->comps[0].data, (OPJ_INT32)width, lut_R, width, height);
}
else {
OPJ_INT32* pDst[] = { image->comps[0].data, image->comps[1].data, image->comps[2].data };
OPJ_INT32 pDstStride[] = { (OPJ_INT32)width, (OPJ_INT32)width, (OPJ_INT32)width };
OPJ_UINT8 const* pLUT[] = { lut_R, lut_G, lut_B };
opj_applyLUT8u_8u32s_C1P3R(pData, (OPJ_INT32)width, pDst, pDstStride, pLUT, width, height);
}
free(pData);
return image;
}
opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters)
{
opj_image_t * image = NULL;
FILE *IN;
OPJ_BITMAPFILEHEADER File_h;
OPJ_BITMAPINFOHEADER Info_h;
IN = fopen(filename, "rb");
if (!IN)
{
fprintf(stderr, "Failed to open %s for reading !!\n", filename);
return NULL;
}
File_h.bfType = (OPJ_UINT16)getc(IN);
File_h.bfType = (OPJ_UINT16)((getc(IN) << 8) + File_h.bfType);
if (File_h.bfType != 19778) {
fprintf(stderr,"Error, not a BMP file!\n");
fclose(IN);
return NULL;
}
/* FILE HEADER */
/* ------------- */
File_h.bfSize = (OPJ_UINT32)getc(IN);
File_h.bfSize = (OPJ_UINT32)(getc(IN) << 8) + File_h.bfSize;
File_h.bfSize = (OPJ_UINT32)(getc(IN) << 16) + File_h.bfSize;
File_h.bfSize = (OPJ_UINT32)(getc(IN) << 24) + File_h.bfSize;
File_h.bfReserved1 = (OPJ_UINT16)getc(IN);
File_h.bfReserved1 = (OPJ_UINT16)((getc(IN) << 8) + File_h.bfReserved1);
File_h.bfReserved2 = (OPJ_UINT16)getc(IN);
File_h.bfReserved2 = (OPJ_UINT16)((getc(IN) << 8) + File_h.bfReserved2);
File_h.bfOffBits = (OPJ_UINT32)getc(IN);
File_h.bfOffBits = (OPJ_UINT32)(getc(IN) << 8) + File_h.bfOffBits;
File_h.bfOffBits = (OPJ_UINT32)(getc(IN) << 16) + File_h.bfOffBits;
File_h.bfOffBits = (OPJ_UINT32)(getc(IN) << 24) + File_h.bfOffBits;
/* INFO HEADER */
/* ------------- */
Info_h.biSize = (OPJ_UINT32)getc(IN);
Info_h.biSize = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biSize;
Info_h.biSize = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biSize;
Info_h.biSize = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biSize;
if(Info_h.biSize != 40) {
fprintf(stderr,"Error, unknown BMP header size %d\n", Info_h.biSize);
fclose(IN);
return NULL;
}
Info_h.biWidth = (OPJ_UINT32)getc(IN);
Info_h.biWidth = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biWidth;
Info_h.biWidth = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biWidth;
Info_h.biWidth = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biWidth;
Info_h.biHeight = (OPJ_UINT32)getc(IN);
Info_h.biHeight = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biHeight;
Info_h.biHeight = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biHeight;
Info_h.biHeight = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biHeight;
Info_h.biPlanes = (OPJ_UINT16)getc(IN);
Info_h.biPlanes = (OPJ_UINT16)((getc(IN) << 8) + Info_h.biPlanes);
Info_h.biBitCount = (OPJ_UINT16)getc(IN);
Info_h.biBitCount = (OPJ_UINT16)((getc(IN) << 8) + Info_h.biBitCount);
Info_h.biCompression = (OPJ_UINT32)getc(IN);
Info_h.biCompression = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biCompression;
Info_h.biCompression = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biCompression;
Info_h.biCompression = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biCompression;
Info_h.biSizeImage = (OPJ_UINT32)getc(IN);
Info_h.biSizeImage = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biSizeImage;
Info_h.biSizeImage = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biSizeImage;
Info_h.biSizeImage = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biSizeImage;
Info_h.biXpelsPerMeter = (OPJ_UINT32)getc(IN);
Info_h.biXpelsPerMeter = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biXpelsPerMeter;
Info_h.biXpelsPerMeter = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biXpelsPerMeter;
Info_h.biXpelsPerMeter = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biXpelsPerMeter;
Info_h.biYpelsPerMeter = (OPJ_UINT32)getc(IN);
Info_h.biYpelsPerMeter = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biYpelsPerMeter;
Info_h.biYpelsPerMeter = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biYpelsPerMeter;
Info_h.biYpelsPerMeter = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biYpelsPerMeter;
Info_h.biClrUsed = (OPJ_UINT32)getc(IN);
Info_h.biClrUsed = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biClrUsed;
Info_h.biClrUsed = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biClrUsed;
Info_h.biClrUsed = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biClrUsed;
Info_h.biClrImportant = (OPJ_UINT32)getc(IN);
Info_h.biClrImportant = (OPJ_UINT32)(getc(IN) << 8) + Info_h.biClrImportant;
Info_h.biClrImportant = (OPJ_UINT32)(getc(IN) << 16) + Info_h.biClrImportant;
Info_h.biClrImportant = (OPJ_UINT32)(getc(IN) << 24) + Info_h.biClrImportant;
/* Read the data */
if (Info_h.biBitCount == 24) { /*RGB */
image = bmp24toimage(IN, &File_h, &Info_h, parameters);
}
else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) { /* RGB 8bpp Indexed */
image = bmp8toimage(IN, &File_h, &Info_h, parameters);
}
else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) { /*RLE8*/
image = bmprle8toimage(IN, &File_h, &Info_h, parameters);
}
else {
fprintf(stderr, "Other system than 24 bits/pixels or 8 bits (no RLE coding) is not yet implemented [%d]\n", Info_h.biBitCount);
}
fclose(IN);
return image;
}
int imagetobmp(opj_image_t * image, const char *outfile) {
int w, h;
int i, pad;
FILE *fdest = NULL;
int adjustR, adjustG, adjustB;
if (image->comps[0].prec < 8) {
fprintf(stderr, "Unsupported number of components: %d\n", image->comps[0].prec);
return 1;
}
if (image->numcomps >= 3 && image->comps[0].dx == image->comps[1].dx
&& image->comps[1].dx == image->comps[2].dx
&& image->comps[0].dy == image->comps[1].dy
&& image->comps[1].dy == image->comps[2].dy
&& image->comps[0].prec == image->comps[1].prec
&& image->comps[1].prec == image->comps[2].prec) {
/* -->> -->> -->> -->>
24 bits color
<<-- <<-- <<-- <<-- */
fdest = fopen(outfile, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return 1;
}
w = (int)image->comps[0].w;
h = (int)image->comps[0].h;
fprintf(fdest, "BM");
/* FILE HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c",
(OPJ_UINT8) (h * w * 3 + 3 * h * (w % 2) + 54) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 8) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 16) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
/* INFO HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) ((w) & 0xff),
(OPJ_UINT8) ((w) >> 8) & 0xff,
(OPJ_UINT8) ((w) >> 16) & 0xff,
(OPJ_UINT8) ((w) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) ((h) & 0xff),
(OPJ_UINT8) ((h) >> 8) & 0xff,
(OPJ_UINT8) ((h) >> 16) & 0xff,
(OPJ_UINT8) ((h) >> 24) & 0xff);
fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
fprintf(fdest, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) (3 * h * w + 3 * h * (w % 2)) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2)) >> 8) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2)) >> 16) & 0xff,
(OPJ_UINT8) ((h * w * 3 + 3 * h * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
if (image->comps[0].prec > 8) {
adjustR = (int)image->comps[0].prec - 8;
printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
}
else
adjustR = 0;
if (image->comps[1].prec > 8) {
adjustG = (int)image->comps[1].prec - 8;
printf("BMP CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
}
else
adjustG = 0;
if (image->comps[2].prec > 8) {
adjustB = (int)image->comps[2].prec - 8;
printf("BMP CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
}
else
adjustB = 0;
for (i = 0; i < w * h; i++) {
OPJ_UINT8 rc, gc, bc;
int r, g, b;
r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
r = ((r >> adjustR)+((r >> (adjustR-1))%2));
if(r > 255) r = 255; else if(r < 0) r = 0;
rc = (OPJ_UINT8)r;
g = image->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
g = ((g >> adjustG)+((g >> (adjustG-1))%2));
if(g > 255) g = 255; else if(g < 0) g = 0;
gc = (OPJ_UINT8)g;
b = image->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
b = ((b >> adjustB)+((b >> (adjustB-1))%2));
if(b > 255) b = 255; else if(b < 0) b = 0;
bc = (OPJ_UINT8)b;
fprintf(fdest, "%c%c%c", bc, gc, rc);
if ((i + 1) % w == 0) {
for (pad = (3 * w) % 4 ? 4 - (3 * w) % 4 : 0; pad > 0; pad--) /* ADD */
fprintf(fdest, "%c", 0);
}
}
fclose(fdest);
} else { /* Gray-scale */
/* -->> -->> -->> -->>
8 bits non code (Gray scale)
<<-- <<-- <<-- <<-- */
fdest = fopen(outfile, "wb");
w = (int)image->comps[0].w;
h = (int)image->comps[0].h;
fprintf(fdest, "BM");
/* FILE HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) (h * w + 54 + 1024 + h * (w % 2)) & 0xff,
(OPJ_UINT8) ((h * w + 54 + 1024 + h * (w % 2)) >> 8) & 0xff,
(OPJ_UINT8) ((h * w + 54 + 1024 + h * (w % 2)) >> 16) & 0xff,
(OPJ_UINT8) ((h * w + 54 + 1024 + w * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (54 + 1024) & 0xff, ((54 + 1024) >> 8) & 0xff,
((54 + 1024) >> 16) & 0xff,
((54 + 1024) >> 24) & 0xff);
/* INFO HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) ((w) & 0xff),
(OPJ_UINT8) ((w) >> 8) & 0xff,
(OPJ_UINT8) ((w) >> 16) & 0xff,
(OPJ_UINT8) ((w) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) ((h) & 0xff),
(OPJ_UINT8) ((h) >> 8) & 0xff,
(OPJ_UINT8) ((h) >> 16) & 0xff,
(OPJ_UINT8) ((h) >> 24) & 0xff);
fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
fprintf(fdest, "%c%c", (8) & 0xff, ((8) >> 8) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (OPJ_UINT8) (h * w + h * (w % 2)) & 0xff,
(OPJ_UINT8) ((h * w + h * (w % 2)) >> 8) & 0xff,
(OPJ_UINT8) ((h * w + h * (w % 2)) >> 16) & 0xff,
(OPJ_UINT8) ((h * w + h * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
if (image->comps[0].prec > 8) {
adjustR = (int)image->comps[0].prec - 8;
printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
}else
adjustR = 0;
for (i = 0; i < 256; i++) {
fprintf(fdest, "%c%c%c%c", i, i, i, 0);
}
for (i = 0; i < w * h; i++) {
int r;
r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
r = ((r >> adjustR)+((r >> (adjustR-1))%2));
if(r > 255) r = 255; else if(r < 0) r = 0;
fprintf(fdest, "%c", (OPJ_UINT8)r);
if ((i + 1) % w == 0) {
for (pad = w % 4 ? 4 - w % 4 : 0; pad > 0; pad--) /* ADD */
fprintf(fdest, "%c", 0);
}
}
fclose(fdest);
}
return 0;
}