mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
synced 2026-09-27 09:23:11 +03:00
kichikuou
29a139c8a1
This replaces BYTE, WORD and DWORD types with uint8_t, uint16_t and uint32_t respectively.
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* Copyright (C) 2020 <KichikuouChrome@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdlib.h>
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#include <SDL_cpuinfo.h>
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#if defined(__ARM_NEON)
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#define STBI_NEON
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#endif
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#define STBI_NO_STDIO
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#define STBI_ONLY_JPEG
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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#include "config.h"
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#include "system.h"
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#include "jpeg.h"
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boolean jpeg_checkfmt(uint8_t *data) {
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return data[0] == 0xff && data[1] == 0xd8;
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}
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cgdata *jpeg_extract(uint8_t *data, size_t size) {
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int width, height, channels;
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uint8_t *pixels = stbi_load_from_memory(data, size, &width, &height, &channels, 3);
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if (!pixels) {
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WARNING("cannot decode jpeg: %s", stbi_failure_reason());
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return NULL;
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}
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cgdata *cg = calloc(1, sizeof(cgdata));
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cg->type = ALCG_JPEG;
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cg->width = width;
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cg->height = height;
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cg->depth = 24;
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cg->pic = pixels;
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return cg;
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}
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