/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2012 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 "LRSDL_config.h"

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

#include "SDL_blit.h"

/* Pixel format functions */
extern SDL_PixelFormat *LRSDL_AllocFormat(int bpp,
		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
extern SDL_PixelFormat *LRSDL_ReallocFormat(SDL_Surface *surface, int bpp,
		Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
extern void LRSDL_FormatChanged(SDL_Surface *surface);
extern void LRSDL_FreeFormat(SDL_PixelFormat *format);

/* Blit mapping functions */
extern SDL_BlitMap *LRSDL_AllocBlitMap(void);
extern void LRSDL_InvalidateMap(SDL_BlitMap *map);
extern int LRSDL_MapSurface (SDL_Surface *src, SDL_Surface *dst);
extern void LRSDL_FreeBlitMap(SDL_BlitMap *map);

/* Miscellaneous functions */
extern Uint16 LRSDL_CalculatePitch(SDL_Surface *surface);
extern void LRSDL_DitherColors(SDL_Color *colors, int bpp);
extern Uint8 LRSDL_FindColor(SDL_Palette *pal, Uint8 r, Uint8 g, Uint8 b);
extern void LRSDL_ApplyGamma(Uint16 *gamma, SDL_Color *colors, SDL_Color *output, int ncolors);
