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/*
*	SDL Graphics Extension
*	Pixel, surface and color functions (header)
*
*	Started 990815 (split from sge_draw 010611)
*
*	License: LGPL v2+ (see the file LICENSE)
*	(c)1999-2003 Anders Lindström
*/

/*********************************************************************
 *  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. *
 *********************************************************************/

#ifndef sge_surface_H
#define sge_surface_H

#include "SDL.h"
#include "sge_internal.h"


/*
*  Obsolete function names
*/
#define sge_copy_sblock8 sge_write_block8
#define sge_copy_sblock16 sge_write_block16
#define sge_copy_sblock32 sge_write_block32
#define sge_get_sblock8 sge_read_block8
#define sge_get_sblock16 sge_read_block16
#define sge_get_sblock32 sge_read_block32


#ifdef _SGE_C
extern "C" {
#endif
DECLSPEC void sge_Update_OFF(void);
DECLSPEC void sge_Update_ON(void);
DECLSPEC void sge_Lock_OFF(void);
DECLSPEC void sge_Lock_ON(void);
DECLSPEC Uint8 sge_getUpdate(void);
DECLSPEC Uint8 sge_getLock(void);
DECLSPEC void sge_UpdateRect(SDL_Surface *screen, Sint16 x, Sint16 y, Uint16 w, Uint16 h);
DECLSPEC SDL_Surface *sge_CreateAlphaSurface(Uint32 flags, int width, int height);
DECLSPEC Uint32 sge_MapAlpha(Uint8 R, Uint8 G, Uint8 B, Uint8 A);
DECLSPEC void sge_SetError(const char *format, ...);

DECLSPEC void _PutPixel(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC void _PutPixel8(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC void _PutPixel16(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC void _PutPixel24(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC void _PutPixel32(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC void _PutPixelX(SDL_Surface *dest,Sint16 x,Sint16 y,Uint32 color);

DECLSPEC Sint32 sge_CalcYPitch(SDL_Surface *dest,Sint16 y);
DECLSPEC void sge_pPutPixel(SDL_Surface *surface, Sint16 x, Sint32 ypitch, Uint32 color);

DECLSPEC void sge_PutPixel(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color);
DECLSPEC Uint32 sge_GetPixel(SDL_Surface *surface, Sint16 x, Sint16 y);

DECLSPEC void _PutPixelAlpha(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color, Uint8 alpha);
DECLSPEC void sge_PutPixelAlpha(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color, Uint8 alpha);

DECLSPEC void sge_write_block8(SDL_Surface *Surface, Uint8 *block, Sint16 y);
DECLSPEC void sge_write_block16(SDL_Surface *Surface, Uint16 *block, Sint16 y);
DECLSPEC void sge_write_block32(SDL_Surface *Surface, Uint32 *block, Sint16 y);
DECLSPEC void sge_read_block8(SDL_Surface *Surface, Uint8 *block, Sint16 y);
DECLSPEC void sge_read_block16(SDL_Surface *Surface, Uint16 *block, Sint16 y);
DECLSPEC void sge_read_block32(SDL_Surface *Surface, Uint32 *block, Sint16 y);

DECLSPEC void sge_ClearSurface(SDL_Surface *Surface, Uint32 color);
DECLSPEC int sge_BlitTransparent(SDL_Surface *Src, SDL_Surface *Dest, Sint16 SrcX, Sint16 SrcY, Sint16 DestX, Sint16 DestY, Sint16 W, Sint16 H, Uint32 Clear, Uint8 Alpha);
DECLSPEC int sge_Blit(SDL_Surface *Src, SDL_Surface *Dest, Sint16 SrcX, Sint16 SrcY, Sint16 DestX, Sint16 DestY, Sint16 W, Sint16 H);
DECLSPEC SDL_Surface *sge_copy_surface(SDL_Surface *src);

DECLSPEC SDL_Color sge_GetRGB(SDL_Surface *Surface, Uint32 Color);
DECLSPEC SDL_Color sge_FillPaletteEntry (Uint8 R, Uint8 G, Uint8 B);
DECLSPEC void sge_Fader(SDL_Surface *Surface, Uint8 sR,Uint8 sG,Uint8 sB, Uint8 dR,Uint8 dG,Uint8 dB,Uint32 *ctab,int start, int stop);
DECLSPEC void sge_AlphaFader(Uint8 sR,Uint8 sG,Uint8 sB,Uint8 sA, Uint8 dR,Uint8 dG,Uint8 dB,Uint8 dA, Uint32 *ctab,int start, int stop);
DECLSPEC void sge_SetupRainbowPalette(SDL_Surface *Surface,Uint32 *ctab,int intensity, int start, int stop);
DECLSPEC void sge_SetupBWPalette(SDL_Surface *Surface,Uint32 *ctab,int start, int stop);

DECLSPEC void sge_FloodFill(SDL_Surface *dst, Sint16 x, Sint16 y, Uint32 color);
#ifdef _SGE_C
}
#endif

#ifndef sge_C_ONLY
DECLSPEC void _PutPixel(SDL_Surface *screen, Sint16 x, Sint16 y, Uint8 R, Uint8 G, Uint8 B);
DECLSPEC void sge_PutPixel(SDL_Surface *screen, Sint16 x, Sint16 y, Uint8 R, Uint8 G, Uint8 B);
DECLSPEC void _PutPixelAlpha(SDL_Surface *surface, Sint16 x, Sint16 y, Uint8 R, Uint8 G, Uint8 B, Uint8 alpha);
DECLSPEC void sge_PutPixelAlpha(SDL_Surface *surface, Sint16 x, Sint16 y, Uint8 R, Uint8 G, Uint8 B, Uint8 alpha);
DECLSPEC void sge_ClearSurface(SDL_Surface *Surface, Uint8 R, Uint8 G, Uint8 B);
DECLSPEC void sge_FloodFill(SDL_Surface *dst, Sint16 x, Sint16 y, Uint8 R, Uint8 G, Uint8 B);
#endif /* sge_C_ONLY */


#endif /* sge_surface_H */