agunashe
80 строки
2.4 KiB
C++
80 строки
2.4 KiB
C++
/* Copyright (c) 2010 - 2021 Advanced Micro Devices, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE. */
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#include "pfm.h"
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#ifdef ATI_OS_WIN
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#include <io.h>
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#endif
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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unsigned int SavePFM(const char* filename, const float* buffer,
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unsigned int width, unsigned int height,
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unsigned int components) {
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unsigned int error = 0;
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//
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// open the image file for writing
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//
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FILE* fh;
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if ((fh = fopen(filename, "wb")) == NULL) {
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return 1;
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}
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//
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// write the PFM header
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//
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#define PFMEOL "\x0a"
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fprintf(fh, "PF" PFMEOL "%d %d" PFMEOL "-1" PFMEOL, width, height);
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fflush(fh);
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//
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// write each scanline
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//
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const unsigned int lineSize = width * 3;
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float line[3 * 4096];
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for (unsigned int y = height; y > 0; y--) {
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const float* v = buffer + components * width * (y - 1);
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for (unsigned int x = 0; x < width; x++) {
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line[x * 3 + 0] = v[x * components + 0];
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line[x * 3 + 1] =
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(components > 1) ? v[x * components + 1] : v[x * components + 0];
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line[x * 3 + 2] =
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(components > 2) ? v[x * components + 2] : v[x * components + 0];
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}
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unsigned int written =
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(unsigned int)fwrite(line, (unsigned int)sizeof(float), lineSize, fh);
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if (written != lineSize) {
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error = 1;
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break;
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}
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fflush(fh);
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}
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fflush(fh);
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fclose(fh);
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return error;
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}
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