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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 GFX_COMMON_H
#define GFX_COMMON_H
#include <stdio.h>
#include <stdlib.h>
#include "libs/gfxlib.h"
// driver for TFB_InitGraphics
enum
{
TFB_GFXDRIVER_SDL_OPENGL,
TFB_GFXDRIVER_SDL_PURE,
};
// forced redraw
enum
{
TFB_REDRAW_NO = 0,
TFB_REDRAW_FADING,
TFB_REDRAW_EXPOSE,
TFB_REDRAW_YES
};
// flags for TFB_InitGraphics
#define TFB_GFXFLAGS_FULLSCREEN (1<<0)
#define TFB_GFXFLAGS_SHOWFPS (1<<1)
#define TFB_GFXFLAGS_SCANLINES (1<<2)
#define TFB_GFXFLAGS_SCALE_BILINEAR (1<<3)
#define TFB_GFXFLAGS_SCALE_BIADAPT (1<<4)
#define TFB_GFXFLAGS_SCALE_BIADAPTADV (1<<5)
#define TFB_GFXFLAGS_SCALE_TRISCAN (1<<6)
#define TFB_GFXFLAGS_SCALE_HQXX (1<<7)
#define TFB_GFXFLAGS_SCALE_ANY \
( TFB_GFXFLAGS_SCALE_BILINEAR | \
TFB_GFXFLAGS_SCALE_BIADAPT | \
TFB_GFXFLAGS_SCALE_BIADAPTADV | \
TFB_GFXFLAGS_SCALE_TRISCAN | \
TFB_GFXFLAGS_SCALE_HQXX )
#define TFB_GFXFLAGS_SCALE_SOFT_ONLY \
( TFB_GFXFLAGS_SCALE_ANY & ~TFB_GFXFLAGS_SCALE_BILINEAR )
// The flag variable itself
extern int GfxFlags;
// The following functions are driver-defined
void TFB_PreInit (void);
int TFB_InitGraphics (int driver, int flags, const char *renderer,
int width, int height);
int TFB_ReInitGraphics (int driver, int flags, int width, int height);
void TFB_UninitGraphics (void);
void TFB_ProcessEvents (void);
bool TFB_SetGamma (float gamma);
void TFB_UploadTransitionScreen (void);
int TFB_SupportsHardwareScaling (void);
// This function should not be called directly
void TFB_SwapBuffers (int force_full_redraw);
#define GSCALE_IDENTITY 256
typedef enum {
TFB_SCALE_STEP, /* not really a scaler */
TFB_SCALE_NEAREST,
TFB_SCALE_BILINEAR,
TFB_SCALE_TRILINEAR
} SCALE;
void LoadIntoExtraScreen (RECT *r);
void DrawFromExtraScreen (RECT *r);
int SetGraphicScale (int scale);
int GetGraphicScale (void);
int SetGraphicScaleMode (int mode /* enum SCALE */);
int GetGraphicScaleMode (void);
void SetTransitionSource (const RECT *pRect);
void ScreenTransition (int transition, const RECT *pRect);
// TODO: there should be accessor functions for these
extern volatile int TransitionAmount;
extern RECT TransitionClipRect;
extern float FrameRate;
extern int FrameRateTickBase;
void TFB_FlushGraphics (void); // Only call from main thread!!
void TFB_PurgeDanglingGraphics (void); // Only call from main thread as part of shutdown.
extern int ScreenWidth;
extern int ScreenHeight;
extern int ScreenWidthActual;
extern int ScreenHeightActual;
extern int ScreenColorDepth;
extern int GraphicsDriver;
#endif
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