rpng_internal.h

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/* Copyright  (C) 2010-2018 The RetroArch team
 *
 * ---------------------------------------------------------------------------------------
 * The following license statement only applies to this file (rpng_internal.h).
 * ---------------------------------------------------------------------------------------
 *
 * Permission is hereby granted, free of charge,
 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _RPNG_COMMON_H
#define _RPNG_COMMON_H

#include <stdint.h>
#include <filters.h>
#include <formats/rpng.h>

#undef GOTO_END_ERROR
#define GOTO_END_ERROR() do { \
   fprintf(stderr, "[RPNG]: Error in line %d.\n", __LINE__); \
   ret = false; \
   goto end; \
} while(0)

#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
#endif

static const uint8_t png_magic[8] = {
   0x89, 'P', 'N', 'G', 0x0d, 0x0a, 0x1a, 0x0a,
};

struct png_ihdr
{
   uint32_t width;
   uint32_t height;
   uint8_t depth;
   uint8_t color_type;
   uint8_t compression;
   uint8_t filter;
   uint8_t interlace;
};

#endif