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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 Ivan Dubrov
* Copyright (C) 2004-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Header$
*
*/
#ifndef GOB_VIDEO_H
#define GOB_VIDEO_H
#include "common/stdafx.h"
#include "common/util.h"
#include "gob/gob.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
extern int16 setAllPalette;
class Video {
public:
struct SurfaceDesc {
int16 width;
int16 height;
int8 reserved1;
int8 flag;
int16 vidMode;
byte *vidPtr;
int16 reserved2;
SurfaceDesc() : width(0), height(0), reserved1(0), flag(0),
vidMode(0), vidPtr(0), reserved2(0) {}
};
struct FontDesc {
char *dataPtr;
int8 itemWidth;
int8 itemHeight;
int8 startItem;
int8 endItem;
int8 itemSize;
int8 bitWidth;
void *extraData;
FontDesc() : dataPtr(0), itemWidth(0), itemHeight(0), startItem(0),
endItem(0), itemSize(0), bitWidth(0) {}
};
#define GDR_VERSION 4
#define PRIMARY_SURFACE 0x80
#define RETURN_PRIMARY 0x01
#define DISABLE_SPR_ALLOC 0x20
#pragma START_PACK_STRUCTS
struct Color {
byte red;
byte green;
byte blue;
} GCC_PACK;
#pragma END_PACK_STRUCTS
struct PalDesc {
Color *vgaPal;
int16 *unused1;
int16 *unused2;
PalDesc() : vgaPal(0), unused1(0), unused2(0) {}
};
Video(class GobEngine *vm);
int32 getRectSize(int16 width, int16 height, int16 flag, int16 mode);
SurfaceDesc *initSurfDesc(int16 vidMode, int16 width, int16 height, int16 flags);
void freeSurfDesc(SurfaceDesc * surfDesc);
int16 clampValue(int16 val, int16 max);
void drawSprite(SurfaceDesc * source, SurfaceDesc * dest, int16 left,
int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp);
void fillRect(SurfaceDesc * dest, int16 left, int16 top, int16 right, int16 bottom,
int16 color);
void drawLine(SurfaceDesc * dest, int16 x0, int16 y0, int16 x1, int16 y1,
int16 color);
void putPixel(int16 x, int16 y, int16 color, SurfaceDesc * dest);
void drawLetter(unsigned char item, int16 x, int16 y, FontDesc * fontDesc, int16 color1,
int16 color2, int16 transp, SurfaceDesc * dest);
void clearSurf(SurfaceDesc * dest);
void drawPackedSprite(byte *sprBuf, int16 width, int16 height, int16 x, int16 y,
int16 transp, SurfaceDesc * dest);
void setPalElem(int16 index, char red, char green, char blue, int16 unused,
int16 vidMode);
void setPalette(PalDesc * palDesc);
void setFullPalette(PalDesc * palDesc);
void initPrimary(int16 mode);
char spriteUncompressor(byte *sprBuf, int16 srcWidth, int16 srcHeight, int16 x,
int16 y, int16 transp, SurfaceDesc * destDesc);
void waitRetrace(int16);
void freeDriver(void);
void setHandlers();
protected:
class VideoDriver *_videoDriver;
GobEngine *_vm;
char initDriver(int16 vidMode);
};
class VideoDriver {
public:
VideoDriver() {}
virtual ~VideoDriver() {}
virtual void drawSprite(Video::SurfaceDesc *source, Video::SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp) = 0;
virtual void fillRect(Video::SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, byte color) = 0;
virtual void putPixel(int16 x, int16 y, byte color, Video::SurfaceDesc *dest) = 0;
virtual void drawLetter(unsigned char item, int16 x, int16 y, Video::FontDesc *fontDesc, byte color1, byte color2, byte transp, Video::SurfaceDesc *dest) = 0;
virtual void drawLine(Video::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, Video::SurfaceDesc *dest) = 0;
};
} // End of namespace Gob
#endif
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