mirror of
https://github.com/libretro/scummvm.git
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269 lines
7.6 KiB
C++
269 lines
7.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef GOB_VIDEO_H
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#define GOB_VIDEO_H
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#include "common/list.h"
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#include "common/rect.h"
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#include "gob/gob.h"
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namespace Graphics {
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class PaletteLUT;
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}
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namespace Gob {
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// Some Surfaces are simultaneous in Draw::spritesArray and discrete
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// variables, so it's a references counting class that cleans
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// up its own mess
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class SurfaceDesc : public ReferenceCounter<SurfaceDesc> {
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public:
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int16 _vidMode;
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int16 getWidth() const { return _width; }
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int16 getHeight() const { return _height; }
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byte *getVidMem() { return _vidMem; }
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const byte *getVidMem() const { return _vidMem; }
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bool hasOwnVidMem() const { return _ownVidMem; }
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void setVidMem(byte *vidMem);
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void resize(int16 width, int16 height);
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void swap(SurfaceDesc &surf);
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void swap(SurfaceDesc *surf) { assert(surf); swap(*surf); }
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SurfaceDesc(int16 vidMode, int16 width, int16 height, byte *vidMem = 0);
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~SurfaceDesc() { if (_ownVidMem) delete[] _vidMem; }
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private:
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int16 _width;
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int16 _height;
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byte *_vidMem;
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bool _ownVidMem;
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};
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class Video {
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public:
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struct FontDesc {
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byte *dataPtr;
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int8 itemWidth;
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int8 itemHeight;
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uint8 startItem;
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uint8 endItem;
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int8 itemSize;
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int8 bitWidth;
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byte *extraData;
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FontDesc() : dataPtr(0), itemWidth(0), itemHeight(0), startItem(0),
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endItem(0), itemSize(0), bitWidth(0) {}
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~FontDesc() {
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if (dataPtr)
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delete[] (dataPtr - 4);
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}
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};
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#define GDR_VERSION 4
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#define PRIMARY_SURFACE 0x80
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#define RETURN_PRIMARY 0x01
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#define DISABLE_SPR_ALLOC 0x20
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#define SCUMMVM_CURSOR 0x100
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#include "common/pack-start.h" // START STRUCT PACKING
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struct Color {
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byte red;
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byte green;
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byte blue;
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} PACKED_STRUCT;
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#include "common/pack-end.h" // END STRUCT PACKING
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struct PalDesc {
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Color *vgaPal;
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int16 *unused1;
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int16 *unused2;
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PalDesc() : vgaPal(0), unused1(0), unused2(0) {}
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};
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bool _doRangeClamp;
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int16 _surfWidth;
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int16 _surfHeight;
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int16 _scrollOffsetX;
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int16 _scrollOffsetY;
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SurfaceDesc::Ptr _splitSurf;
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int16 _splitHeight1;
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int16 _splitHeight2;
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int16 _splitStart;
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int16 _screenDeltaX;
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int16 _screenDeltaY;
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Graphics::PaletteLUT *_palLUT;
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void freeDriver();
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void initPrimary(int16 mode);
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SurfaceDesc *initSurfDesc(int16 vidMode, int16 width,
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int16 height, int16 flags);
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void setSize(bool defaultTo1XScaler);
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void clearScreen();
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void retrace(bool mouse = true);
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void waitRetrace(bool mouse = true);
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void sparseRetrace(int max);
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void putPixel(int16 x, int16 y, int16 color, SurfaceDesc *dest);
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virtual void fillRect(SurfaceDesc *dest, int16 left, int16 top,
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int16 right, int16 bottom, int16 color);
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void drawLine(SurfaceDesc *dest, int16 x0, int16 y0, int16 x1, int16 y1,
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int16 color);
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void drawCircle(SurfaceDesc *dest, int16 x0, int16 y0,
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int16 radius, int16 color);
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void clearSurf(SurfaceDesc *dest);
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void drawSprite(SurfaceDesc *source, SurfaceDesc *dest,
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int16 left, int16 top, int16 right, int16 bottom,
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int16 x, int16 y, int16 transp);
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void drawLetter(int16 item, int16 x, int16 y, FontDesc *fontDesc,
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int16 color1, int16 color2, int16 transp, SurfaceDesc *dest);
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void drawPackedSprite(byte *sprBuf, int16 width, int16 height,
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int16 x, int16 y, int16 transp, SurfaceDesc *dest);
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void drawPackedSprite(const char *path, SurfaceDesc *dest,
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int width = 320);
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void setPalColor(byte *pal, byte red, byte green, byte blue) {
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pal[0] = red << 2;
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pal[1] = green << 2;
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pal[2] = blue << 2;
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pal[3] = 0;
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}
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void setPalColor(byte *pal, Color &color) {
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setPalColor(pal, color.red, color.green, color.blue);
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}
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void setPalElem(int16 index, char red, char green, char blue,
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int16 unused, int16 vidMode);
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void setPalette(PalDesc *palDesc);
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void setFullPalette(PalDesc *palDesc);
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void setPalette(Color *palette);
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void dirtyRectsClear();
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void dirtyRectsAll();
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void dirtyRectsAdd(int16 left, int16 top, int16 right, int16 bottom);
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void dirtyRectsApply(int left, int top, int width, int height, int x, int y);
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virtual char spriteUncompressor(byte *sprBuf, int16 srcWidth,
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int16 srcHeight, int16 x, int16 y, int16 transp,
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SurfaceDesc *destDesc) = 0;
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virtual void init(const char *target = "") { }
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Video(class GobEngine *vm);
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virtual ~Video();
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protected:
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class VideoDriver *_videoDriver;
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bool _dirtyAll;
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Common::List<Common::Rect> _dirtyRects;
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int _curSparse;
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uint32 _lastSparse;
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GobEngine *_vm;
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char initDriver(int16 vidMode);
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void initOSD();
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void drawOSDText(const char *text);
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};
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class Video_v1 : public Video {
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public:
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virtual char spriteUncompressor(byte *sprBuf, int16 srcWidth, int16 srcHeight,
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int16 x, int16 y, int16 transp, SurfaceDesc *destDesc);
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Video_v1(GobEngine *vm);
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virtual ~Video_v1() {}
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};
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class Video_v2 : public Video_v1 {
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public:
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virtual char spriteUncompressor(byte *sprBuf, int16 srcWidth, int16 srcHeight,
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int16 x, int16 y, int16 transp, SurfaceDesc *destDesc);
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Video_v2(GobEngine *vm);
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virtual ~Video_v2() {}
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};
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class Video_v6 : public Video_v2 {
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public:
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virtual char spriteUncompressor(byte *sprBuf, int16 srcWidth, int16 srcHeight,
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int16 x, int16 y, int16 transp, SurfaceDesc *destDesc);
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virtual void fillRect(SurfaceDesc *dest, int16 left, int16 top,
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int16 right, int16 bottom, int16 color);
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virtual void init(const char *target = "");
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Video_v6(GobEngine *vm);
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virtual ~Video_v6() {}
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private:
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static const byte _ditherPalette[768];
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bool loadPalLUT(const char *target);
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bool savePalLUT(const char *target);
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void buildPalLUT();
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void shadeRect(SurfaceDesc *dest,
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int16 left, int16 top, int16 right, int16 bottom, byte color, byte strength);
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void drawPacked(const byte *sprBuf, int16 x, int16 y, SurfaceDesc *surfDesc);
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void drawYUVData(const byte *srcData, SurfaceDesc *destDesc,
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int16 width, int16 height, int16 x, int16 y);
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void drawYUV(SurfaceDesc *destDesc, int16 x, int16 y,
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int16 dataWidth, int16 dataHeight, int16 width, int16 height,
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const byte *dataY, const byte *dataU, const byte *dataV);
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};
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class VideoDriver {
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public:
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VideoDriver() {}
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virtual ~VideoDriver() {}
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virtual void drawSprite(SurfaceDesc *source, SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, int16 x, int16 y, int16 transp) = 0;
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virtual void fillRect(SurfaceDesc *dest, int16 left, int16 top, int16 right, int16 bottom, byte color) = 0;
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virtual void putPixel(int16 x, int16 y, byte color, SurfaceDesc *dest) = 0;
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virtual void drawLetter(unsigned char item, int16 x, int16 y, Video::FontDesc *fontDesc, byte color1, byte color2, byte transp, SurfaceDesc *dest) = 0;
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virtual void drawLine(SurfaceDesc *dest, int16 x0, int16 y0, int16 x1, int16 y1, byte color) = 0;
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virtual void drawPackedSprite(byte *sprBuf, int16 width, int16 height, int16 x, int16 y, byte transp, SurfaceDesc *dest) = 0;
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};
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} // End of namespace Gob
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#endif // GOB_VIDEO_H
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