/*
    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);
/* vi: set ts=4 sw=4 expandtab: */