/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga

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

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 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

Library General Public License for more details.

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

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

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

*/

#ifdef SAVE_RCSID

static char rcsid =

"@(#) $Id$";

#endif

/* 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);