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//Copyright Paul Reiche, Fred Ford. 1992-2002
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef SDL_COMMON_H
#define SDL_COMMON_H
#include "port.h"
#include SDL_INCLUDE(SDL.h)
#include "../gfxintrn.h"
#include "libs/graphics/tfb_draw.h"
#include "libs/graphics/gfx_common.h"
// The Graphics Backend vtable
typedef struct _tfb_graphics_backend {
void (*preprocess) (int force_redraw, int transition_amount, int fade_amount);
void (*postprocess) (void);
void (*uploadTransitionScreen) (void);
void (*screen) (SCREEN screen, Uint8 alpha, SDL_Rect *rect);
void (*color) (Uint8 r, Uint8 g, Uint8 b, Uint8 a, SDL_Rect *rect);
} TFB_GRAPHICS_BACKEND;
extern TFB_GRAPHICS_BACKEND *graphics_backend;
extern SDL_Surface *SDL_Screen;
extern SDL_Surface *TransitionScreen;
extern SDL_Surface *SDL_Screens[TFB_GFX_NUMSCREENS];
extern SDL_Surface *format_conv_surf;
SDL_Surface* TFB_DisplayFormatAlpha (SDL_Surface *surface);
int TFB_HasSurfaceAlphaMod (SDL_Surface *surface);
int TFB_GetSurfaceAlphaMod (SDL_Surface *surface, Uint8 *alpha);
int TFB_SetSurfaceAlphaMod (SDL_Surface *surface, Uint8 alpha);
int TFB_DisableSurfaceAlphaMod (SDL_Surface *surface);
int TFB_HasColorKey (SDL_Surface *surface);
int TFB_GetColorKey (SDL_Surface *surface, Uint32 *key);
int TFB_SetColorKey (SDL_Surface *surface, Uint32 key, int rleaccel);
int TFB_DisableColorKey (SDL_Surface *surface);
int TFB_SetColors (SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors);
#if SDL_MAJOR_VERSION == 1
int SDL1_ReInit_Screen (SDL_Surface **screen, SDL_Surface *templat, int w, int h);
#endif
void UnInit_Screen (SDL_Surface **screen);
#endif
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