87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
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/*
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Command line tool to convert between png <> qoi format
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Requires "stb_image.h" and "stb_image_write.h"
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Compile with:
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gcc qoiconv.c -std=c99 -O3 -o qoiconv
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Dominic Szablewski - https://phoboslab.org
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-- LICENSE: The MIT License(MIT)
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Copyright(c) 2021 Dominic Szablewski
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files(the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and / or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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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 THE
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SOFTWARE.
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*/
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#define STB_IMAGE_IMPLEMENTATION
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#define STBI_ONLY_PNG
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#define STBI_NO_LINEAR
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#include "stb_image.h"
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#define STB_IMAGE_WRITE_IMPLEMENTATION
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#include "stb_image_write.h"
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#define QOI_IMPLEMENTATION
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#include "qoi.h"
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#define STR_ENDS_WITH(S, E) (strcmp(S + strlen(S) - (sizeof(E)-1), E) == 0)
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int main(int argc, char **argv) {
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if (argc < 3) {
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printf("Usage: qoiconv infile outfile\n");
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printf("Examples:\n");
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printf(" qoiconv image.png image.qoi\n");
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printf(" qoiconv image.qoi image.png\n");
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exit(1);
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}
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void *pixels = NULL;
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int w, h;
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if (STR_ENDS_WITH(argv[1], ".png")) {
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pixels = (void *)stbi_load(argv[1], &w, &h, NULL, 4);
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}
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else if (STR_ENDS_WITH(argv[1], ".qoi")) {
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pixels = qoi_read(argv[1], &w, &h, 4);
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}
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if (pixels == NULL) {
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printf("Couldn't load/decode %s\n", argv[1]);
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exit(1);
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}
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int encoded = 0;
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if (STR_ENDS_WITH(argv[2], ".png")) {
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encoded = stbi_write_png(argv[2], w, h, 4, pixels, 0);
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}
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else if (STR_ENDS_WITH(argv[2], ".qoi")) {
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encoded = qoi_write(argv[2], pixels, w, h, 4);
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}
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if (!encoded) {
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printf("Couldn't write/encode %s\n", argv[2]);
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exit(1);
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}
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return 0;
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}
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