/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

/* Useful functions and variables from SDL_pixel.c */

#include "SDL_blit.h"

/* Pixel format functions */

extern SDL_PixelFormat *SDL_AllocFormat(int bpp,

		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);

extern SDL_PixelFormat *SDL_ReallocFormat(SDL_Surface *surface, int bpp,

		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);

extern void SDL_FormatChanged(SDL_Surface *surface);

extern void SDL_FreeFormat(SDL_PixelFormat *format);

/* Blit mapping functions */

extern SDL_BlitMap *SDL_AllocBlitMap(void);

extern void SDL_InvalidateMap(SDL_BlitMap *map);

extern int SDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);

extern void SDL_FreeBlitMap(SDL_BlitMap *map);

/* Miscellaneous functions */

extern Uint16 SDL_CalculatePitch(SDL_Surface *surface);

extern void SDL_DitherColors(SDL_Color *colors, int bpp);

extern Uint8 SDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);

extern void SDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);