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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 Ivan Dubrov
* Copyright (C) 2004-2005 The ScummVM project
*
* 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.
*
* $Header$
*
*/
#ifndef GOB_VIDEO_H
#define GOB_VIDEO_H
#include "stdafx.h"
#include "common/util.h"
namespace Gob {
#define VID_SET_CURSOR(val) { _AH = 1; _CX = (val); geninterrupt(0x10); }
#define VID_RESTORE_MODE { _AX = 3; geninterrupt(0x10); }
#define TEXT_VID_SEG 0xB800
#define TEXT_VID_OFF 0
#define TEXT_COL_COUNT 80
#define TEXT_ROW_COUNT 25
typedef struct SurfaceDesc_t {
int16 width;
int16 height;
int8 reserved1;
int8 flag;
int16 vidMode;
byte *vidPtr;
int16 reserved2;
} SurfaceDesc;
typedef struct FontDesc_t {
char *dataPtr;
int8 itemWidth;
int8 itemHeight;
int8 startItem;
int8 endItem;
int8 itemSize;
int8 bitWidth;
void *extraData;
} FontDesc;
class VideoDriver {
public:
VideoDriver() {}
virtual ~VideoDriver() {}
virtual void drawSprite(SurfaceDesc *source, SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp) = 0;
virtual void fillRect(SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, byte color) = 0;
virtual void putPixel(int16 x, int16 y, byte color, SurfaceDesc *dest) = 0;
virtual void drawLetter(unsigned char item, int16 x, int16 y, FontDesc *fontDesc, byte color1, byte color2, byte transp, SurfaceDesc *dest) = 0;
virtual void drawLine(SurfaceDesc *dest, int16 x0, int16 y0, int16 x1, int16 y1, byte color) = 0;
virtual void drawPackedSprite(byte *sprBuf, int16 width, int16 height, int16 x, int16 y, byte transp, SurfaceDesc *dest) = 0;
};
typedef void (*FillRectFunc) (SurfaceDesc * desc, int16 left, int16 top, int16 right,
int16 bottom, int16 color);
typedef void (*DrawSpriteFunc) (SurfaceDesc * source, SurfaceDesc * dest,
int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
typedef void (*PutPixelFunc) (int16 x, int16 y, int16 color, SurfaceDesc * desc);
typedef void (*XorRectFunc) (SurfaceDesc * desc, int16 left, int16 top, int16 right,
int16 bottom);
typedef void (*SetXorValFunc) (int16 val);
typedef void (*DrawLineFunc) (SurfaceDesc * desc, int16 x0, int16 y0, int16 x1,
int16 y1, int16 color);
typedef void (*DrawLetterFunc) (char item, int16 x, int16 y, FontDesc * fontDesc,
int16 color1, int16 color2, int16 transp, SurfaceDesc * dest);
typedef char (*DrawPackedSpriteFunc) (byte *sprBuf, int16 width, int16 height,
int16 x, int16 y, int16 transp, SurfaceDesc * dest);
#define GDR_VERSION 4
#define SET_SEG(ptr,seg) (((unsigned*)(ptr))[1] = (seg))
#define PRIMARY_SURFACE 0x80
#define RETURN_PRIMARY 0x01
#define DISABLE_SPR_ALLOC 0x20
#if !defined(__GNUC__)
#pragma START_PACK_STRUCTS
#endif
typedef struct Color {
byte red;
byte green;
byte blue;
} GCC_PACK Color;
#if !defined(__GNUC__)
#pragma END_PACK_STRUCTS
#endif
typedef struct PalDesc {
Color *vgaPal;
int16 *unused1;
int16 *unused2;
} PalDesc;
char vid_initDriver(int16 vidMode);
void vid_freeDriver(void);
int32 vid_getRectSize(int16 width, int16 height, int16 flag, int16 mode);
SurfaceDesc *vid_initSurfDesc(int16 vidMode, int16 width, int16 height, int16 flags);
void vid_freeSurfDesc(SurfaceDesc * surfDesc);
int16 vid_clampValue(int16 val, int16 max);
void vid_drawSprite(SurfaceDesc * source, SurfaceDesc * dest, int16 left,
int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
void vid_fillRect(SurfaceDesc * dest, int16 left, int16 top, int16 right, int16 bottom,
int16 color);
void vid_drawLine(SurfaceDesc * dest, int16 x0, int16 y0, int16 x1, int16 y1,
int16 color);
void vid_putPixel(int16 x, int16 y, int16 color, SurfaceDesc * dest);
void vid_drawLetter(unsigned char item, int16 x, int16 y, FontDesc * fontDesc, int16 color1,
int16 color2, int16 transp, SurfaceDesc * dest);
void vid_clearSurf(SurfaceDesc * dest);
void vid_drawPackedSprite(byte *sprBuf, int16 width, int16 height, int16 x, int16 y,
int16 transp, SurfaceDesc * dest);
void vid_setPalElem(int16 index, char red, char green, char blue, int16 unused,
int16 vidMode);
void vid_setPalette(PalDesc * palDesc);
void vid_setFullPalette(PalDesc * palDesc);
void vid_initPrimary(int16 mode);
char vid_spriteUncompressor(byte *sprBuf, int16 srcWidth, int16 srcHeight, int16 x,
int16 y, int16 transp, SurfaceDesc * destDesc);
void vid_setHandlers(void);
} // End of namespace Gob
#endif
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