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#ifndef _SDL_SAVEPNG
#define _SDL_SAVEPNG
/*
* SDL_SavePNG -- libpng-based SDL_Surface writer.
*
* This code is free software, available under zlib/libpng license.
* http://www.libpng.org/pub/png/src/libpng-LICENSE.txt
*/
// #include <SDL_video.h>
#ifdef __cplusplus
extern "C" { /* This helps CPP projects that include this header */
#endif
/*
* Save an SDL_Surface as a PNG file.
*
* Returns 0 success or -1 on failure, the error message is then retrievable
* via SDL_GetError().
*/
#define SDL_SavePNG(surface, file) \
SDL_SavePNG_RW(surface, SDL_RWFromFile(file, "wb"), 1)
/*
* Save an SDL_Surface as a PNG file, using writable RWops.
*
* surface - the SDL_Surface structure containing the image to be saved
* dst - a data stream to save to
* freedst - non-zero to close the stream after being written
*
* Returns 0 success or -1 on failure, the error message is then retrievable
* via SDL_GetError().
*/
extern int SDL_SavePNG_RW(SDL_Surface *surface, SDL_RWops *rw, int freedst);
/*
* Return new SDL_Surface with a format suitable for PNG output.
*/
extern SDL_Surface *SDL_PNGFormatAlpha(SDL_Surface *src);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
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