518 lines
16 KiB
C
518 lines
16 KiB
C
/*
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* The copyright in this software is being made available under the 2-clauses
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* BSD License, included below. This software may be subject to other third
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* party and contributor rights, including patent rights, and no such rights
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* are granted under this license.
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*
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2014, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux
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* Copyright (c) 2003-2014, Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2006-2007, Parvatha Elangovan
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* Copyright (c) 2015, Matthieu Darbois
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opj_apps_config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <zlib.h>
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#include <png.h>
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#include "openjpeg.h"
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#include "convert.h"
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#define PNG_MAGIC "\x89PNG\x0d\x0a\x1a\x0a"
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#define MAGIC_SIZE 8
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/* PNG allows bits per sample: 1, 2, 4, 8, 16 */
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static void convert_16u32s_C1R(const OPJ_BYTE* pSrc, OPJ_INT32* pDst,
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OPJ_SIZE_T length)
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{
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OPJ_SIZE_T i;
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for (i = 0; i < length; i++) {
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OPJ_INT32 val0 = *pSrc++;
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OPJ_INT32 val1 = *pSrc++;
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pDst[i] = val0 << 8 | val1;
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}
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}
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opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params)
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{
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png_structp png = NULL;
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png_infop info = NULL;
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double gamma;
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int bit_depth, interlace_type, compression_type, filter_type;
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OPJ_UINT32 i;
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png_uint_32 width, height = 0U;
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int color_type;
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FILE *reader = NULL;
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OPJ_BYTE** rows = NULL;
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OPJ_INT32* row32s = NULL;
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/* j2k: */
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opj_image_t *image = NULL;
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opj_image_cmptparm_t cmptparm[4];
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OPJ_UINT32 nr_comp;
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OPJ_BYTE sigbuf[8];
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convert_XXx32s_C1R cvtXXTo32s = NULL;
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convert_32s_CXPX cvtCxToPx = NULL;
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OPJ_INT32* planes[4];
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if ((reader = fopen(read_idf, "rb")) == NULL) {
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fprintf(stderr, "pngtoimage: can not open %s\n", read_idf);
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return NULL;
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}
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if (fread(sigbuf, 1, MAGIC_SIZE, reader) != MAGIC_SIZE
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|| memcmp(sigbuf, PNG_MAGIC, MAGIC_SIZE) != 0) {
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fprintf(stderr, "pngtoimage: %s is no valid PNG file\n", read_idf);
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goto fin;
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}
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if ((png = png_create_read_struct(PNG_LIBPNG_VER_STRING,
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NULL, NULL, NULL)) == NULL) {
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goto fin;
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}
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if ((info = png_create_info_struct(png)) == NULL) {
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goto fin;
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}
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if (setjmp(png_jmpbuf(png))) {
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goto fin;
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}
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png_init_io(png, reader);
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png_set_sig_bytes(png, MAGIC_SIZE);
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png_read_info(png, info);
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if (png_get_IHDR(png, info, &width, &height,
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&bit_depth, &color_type, &interlace_type,
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&compression_type, &filter_type) == 0) {
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goto fin;
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}
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/* png_set_expand():
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* expand paletted images to RGB, expand grayscale images of
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* less than 8-bit depth to 8-bit depth, and expand tRNS chunks
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* to alpha channels.
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*/
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if (color_type == PNG_COLOR_TYPE_PALETTE) {
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png_set_expand(png);
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}
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if (png_get_valid(png, info, PNG_INFO_tRNS)) {
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png_set_expand(png);
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}
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/* We might wan't to expand background */
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/*
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if(png_get_valid(png, info, PNG_INFO_bKGD)) {
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png_color_16p bgnd;
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png_get_bKGD(png, info, &bgnd);
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png_set_background(png, bgnd, PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
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}
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*/
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if (!png_get_gAMA(png, info, &gamma)) {
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gamma = 1.0;
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}
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/* we're not displaying but converting, screen gamma == 1.0 */
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png_set_gamma(png, 1.0, gamma);
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png_read_update_info(png, info);
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color_type = png_get_color_type(png, info);
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switch (color_type) {
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case PNG_COLOR_TYPE_GRAY:
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nr_comp = 1;
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break;
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case PNG_COLOR_TYPE_GRAY_ALPHA:
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nr_comp = 2;
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break;
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case PNG_COLOR_TYPE_RGB:
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nr_comp = 3;
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break;
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case PNG_COLOR_TYPE_RGB_ALPHA:
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nr_comp = 4;
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break;
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default:
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fprintf(stderr, "pngtoimage: colortype %d is not supported\n", color_type);
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goto fin;
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}
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cvtCxToPx = convert_32s_CXPX_LUT[nr_comp];
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bit_depth = png_get_bit_depth(png, info);
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switch (bit_depth) {
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case 1:
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case 2:
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case 4:
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case 8:
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cvtXXTo32s = convert_XXu32s_C1R_LUT[bit_depth];
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break;
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case 16: /* 16 bpp is specific to PNG */
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cvtXXTo32s = convert_16u32s_C1R;
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break;
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default:
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fprintf(stderr, "pngtoimage: bit depth %d is not supported\n", bit_depth);
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goto fin;
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}
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rows = (OPJ_BYTE**)calloc(height + 1, sizeof(OPJ_BYTE*));
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if (rows == NULL) {
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fprintf(stderr, "pngtoimage: memory out\n");
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goto fin;
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}
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for (i = 0; i < height; ++i) {
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rows[i] = (OPJ_BYTE*)malloc(png_get_rowbytes(png, info));
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if (rows[i] == NULL) {
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fprintf(stderr, "pngtoimage: memory out\n");
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goto fin;
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}
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}
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png_read_image(png, rows);
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/* Create image */
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memset(cmptparm, 0, sizeof(cmptparm));
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for (i = 0; i < nr_comp; ++i) {
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cmptparm[i].prec = (OPJ_UINT32)bit_depth;
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/* bits_per_pixel: 8 or 16 */
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cmptparm[i].bpp = (OPJ_UINT32)bit_depth;
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cmptparm[i].sgnd = 0;
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cmptparm[i].dx = (OPJ_UINT32)params->subsampling_dx;
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cmptparm[i].dy = (OPJ_UINT32)params->subsampling_dy;
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cmptparm[i].w = (OPJ_UINT32)width;
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cmptparm[i].h = (OPJ_UINT32)height;
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}
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image = opj_image_create(nr_comp, &cmptparm[0],
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(nr_comp > 2U) ? OPJ_CLRSPC_SRGB : OPJ_CLRSPC_GRAY);
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if (image == NULL) {
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goto fin;
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}
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image->x0 = (OPJ_UINT32)params->image_offset_x0;
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image->y0 = (OPJ_UINT32)params->image_offset_y0;
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image->x1 = (OPJ_UINT32)(image->x0 + (width - 1) * (OPJ_UINT32)
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params->subsampling_dx + 1 + image->x0);
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image->y1 = (OPJ_UINT32)(image->y0 + (height - 1) * (OPJ_UINT32)
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params->subsampling_dy + 1 + image->y0);
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row32s = (OPJ_INT32 *)malloc((size_t)width * nr_comp * sizeof(OPJ_INT32));
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if (row32s == NULL) {
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goto fin;
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}
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/* Set alpha channel */
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image->comps[nr_comp - 1U].alpha = 1U - (nr_comp & 1U);
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for (i = 0; i < nr_comp; i++) {
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planes[i] = image->comps[i].data;
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}
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for (i = 0; i < height; ++i) {
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cvtXXTo32s(rows[i], row32s, (OPJ_SIZE_T)width * nr_comp);
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cvtCxToPx(row32s, planes, width);
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planes[0] += width;
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planes[1] += width;
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planes[2] += width;
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planes[3] += width;
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}
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fin:
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if (rows) {
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for (i = 0; i < height; ++i)
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if (rows[i]) {
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free(rows[i]);
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}
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free(rows);
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}
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if (row32s) {
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free(row32s);
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}
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if (png) {
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png_destroy_read_struct(&png, &info, NULL);
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}
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fclose(reader);
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return image;
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}/* pngtoimage() */
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static void convert_32s16u_C1R(const OPJ_INT32* pSrc, OPJ_BYTE* pDst,
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OPJ_SIZE_T length)
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{
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OPJ_SIZE_T i;
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for (i = 0; i < length; i++) {
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OPJ_UINT32 val = (OPJ_UINT32)pSrc[i];
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*pDst++ = (OPJ_BYTE)(val >> 8);
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*pDst++ = (OPJ_BYTE)val;
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}
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}
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int imagetopng(opj_image_t * image, const char *write_idf)
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{
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FILE * volatile writer = NULL;
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png_structp png = NULL;
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png_infop info = NULL;
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png_bytep volatile row_buf = NULL;
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int nr_comp, color_type;
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volatile int prec;
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png_color_8 sig_bit;
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OPJ_INT32 const* planes[4];
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int i;
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OPJ_INT32* volatile buffer32s = NULL;
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volatile int fails = 1;
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memset(&sig_bit, 0, sizeof(sig_bit));
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prec = (int)image->comps[0].prec;
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planes[0] = image->comps[0].data;
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nr_comp = (int)image->numcomps;
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if (nr_comp > 4) {
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nr_comp = 4;
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}
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for (i = 1; i < nr_comp; ++i) {
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if (image->comps[0].dx != image->comps[i].dx) {
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break;
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}
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if (image->comps[0].dy != image->comps[i].dy) {
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break;
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}
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if (image->comps[0].prec != image->comps[i].prec) {
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break;
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}
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if (image->comps[0].sgnd != image->comps[i].sgnd) {
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break;
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}
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planes[i] = image->comps[i].data;
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}
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if (i != nr_comp) {
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fprintf(stderr,
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"imagetopng: All components shall have the same subsampling, same bit depth, same sign.\n");
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fprintf(stderr, "\tAborting\n");
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return 1;
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}
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for (i = 0; i < nr_comp; ++i) {
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clip_component(&(image->comps[i]), image->comps[0].prec);
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}
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if (prec > 8 && prec < 16) {
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for (i = 0; i < nr_comp; ++i) {
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scale_component(&(image->comps[i]), 16);
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}
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prec = 16;
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} else if (prec < 8 && nr_comp > 1) { /* GRAY_ALPHA, RGB, RGB_ALPHA */
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for (i = 0; i < nr_comp; ++i) {
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scale_component(&(image->comps[i]), 8);
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}
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prec = 8;
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} else if ((prec > 1) && (prec < 8) && ((prec == 6) ||
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((prec & 1) == 1))) { /* GRAY with non native precision */
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if ((prec == 5) || (prec == 6)) {
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prec = 8;
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} else {
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prec++;
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}
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for (i = 0; i < nr_comp; ++i) {
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scale_component(&(image->comps[i]), (OPJ_UINT32)prec);
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}
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}
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if (prec != 1 && prec != 2 && prec != 4 && prec != 8 && prec != 16) {
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fprintf(stderr, "imagetopng: can not create %s\n\twrong bit_depth %d\n",
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write_idf, prec);
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return fails;
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}
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writer = fopen(write_idf, "wb");
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if (writer == NULL) {
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return fails;
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}
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/* Create and initialize the png_struct with the desired error handler
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* functions. If you want to use the default stderr and longjump method,
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* you can supply NULL for the last three parameters. We also check that
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* the library version is compatible with the one used at compile time,
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* in case we are using dynamically linked libraries. REQUIRED.
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*/
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png = png_create_write_struct(PNG_LIBPNG_VER_STRING,
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NULL, NULL, NULL);
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/*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */
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if (png == NULL) {
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goto fin;
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}
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/* Allocate/initialize the image information data. REQUIRED
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*/
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info = png_create_info_struct(png);
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if (info == NULL) {
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goto fin;
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}
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/* Set error handling. REQUIRED if you are not supplying your own
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* error handling functions in the png_create_write_struct() call.
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*/
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if (setjmp(png_jmpbuf(png))) {
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goto fin;
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}
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/* I/O initialization functions is REQUIRED
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*/
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png_init_io(png, writer);
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/* Set the image information here. Width and height are up to 2^31,
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* bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on
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* the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
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* PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
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* or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or
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* PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
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* currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE.
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* REQUIRED
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*
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* ERRORS:
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*
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* color_type == PNG_COLOR_TYPE_PALETTE && bit_depth > 8
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* color_type == PNG_COLOR_TYPE_RGB && bit_depth < 8
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* color_type == PNG_COLOR_TYPE_GRAY_ALPHA && bit_depth < 8
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* color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8
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*
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*/
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png_set_compression_level(png, Z_BEST_COMPRESSION);
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if (nr_comp >= 3) { /* RGB(A) */
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color_type = PNG_COLOR_TYPE_RGB;
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sig_bit.red = sig_bit.green = sig_bit.blue = (png_byte)prec;
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} else { /* GRAY(A) */
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color_type = PNG_COLOR_TYPE_GRAY;
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sig_bit.gray = (png_byte)prec;
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}
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if ((nr_comp & 1) == 0) { /* ALPHA */
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color_type |= PNG_COLOR_MASK_ALPHA;
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sig_bit.alpha = (png_byte)prec;
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}
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png_set_IHDR(png, info, image->comps[0].w, image->comps[0].h, prec, color_type,
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PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
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png_set_sBIT(png, info, &sig_bit);
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/* png_set_gamma(png, 2.2, 1./2.2); */
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/* png_set_sRGB(png, info, PNG_sRGB_INTENT_PERCEPTUAL); */
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png_write_info(png, info);
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/* setup conversion */
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{
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OPJ_SIZE_T rowStride;
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png_size_t png_row_size;
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png_row_size = png_get_rowbytes(png, info);
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rowStride = ((OPJ_SIZE_T)image->comps[0].w * (OPJ_SIZE_T)nr_comp *
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(OPJ_SIZE_T)prec + 7U) / 8U;
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if (rowStride != (OPJ_SIZE_T)png_row_size) {
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fprintf(stderr, "Invalid PNG row size\n");
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goto fin;
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}
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row_buf = (png_bytep)malloc(png_row_size);
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if (row_buf == NULL) {
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fprintf(stderr, "Can't allocate memory for PNG row\n");
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goto fin;
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}
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buffer32s = (OPJ_INT32*)malloc((OPJ_SIZE_T)image->comps[0].w *
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(OPJ_SIZE_T)nr_comp * sizeof(OPJ_INT32));
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if (buffer32s == NULL) {
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fprintf(stderr, "Can't allocate memory for interleaved 32s row\n");
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goto fin;
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}
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}
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/* convert */
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{
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OPJ_SIZE_T width = image->comps[0].w;
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OPJ_UINT32 y;
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convert_32s_PXCX cvtPxToCx = convert_32s_PXCX_LUT[nr_comp];
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convert_32sXXx_C1R cvt32sToPack = NULL;
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OPJ_INT32 adjust = image->comps[0].sgnd ? 1 << (prec - 1) : 0;
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png_bytep row_buf_cpy = row_buf;
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OPJ_INT32* buffer32s_cpy = buffer32s;
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switch (prec) {
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case 1:
|
|
case 2:
|
|
case 4:
|
|
case 8:
|
|
cvt32sToPack = convert_32sXXu_C1R_LUT[prec];
|
|
break;
|
|
case 16:
|
|
cvt32sToPack = convert_32s16u_C1R;
|
|
break;
|
|
default:
|
|
/* never here */
|
|
break;
|
|
}
|
|
|
|
for (y = 0; y < image->comps[0].h; ++y) {
|
|
cvtPxToCx(planes, buffer32s_cpy, width, adjust);
|
|
cvt32sToPack(buffer32s_cpy, row_buf_cpy, width * (OPJ_SIZE_T)nr_comp);
|
|
png_write_row(png, row_buf_cpy);
|
|
planes[0] += width;
|
|
planes[1] += width;
|
|
planes[2] += width;
|
|
planes[3] += width;
|
|
}
|
|
}
|
|
|
|
png_write_end(png, info);
|
|
|
|
fails = 0;
|
|
|
|
fin:
|
|
if (png) {
|
|
png_destroy_write_struct(&png, &info);
|
|
}
|
|
if (row_buf) {
|
|
free(row_buf);
|
|
}
|
|
if (buffer32s) {
|
|
free(buffer32s);
|
|
}
|
|
fclose(writer);
|
|
|
|
if (fails) {
|
|
(void)remove(write_idf); /* ignore return value */
|
|
}
|
|
|
|
return fails;
|
|
}/* imagetopng() */
|