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|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#ifndef KYRA_SCREEN_H
#define KYRA_SCREEN_H
#include "common/util.h"
#include "common/func.h"
#include "common/list.h"
#include "common/array.h"
#include "common/rect.h"
#include "common/rendermode.h"
#include "common/stream.h"
#include "common/ptr.h"
class OSystem;
namespace Graphics {
class FontSJIS;
} // End of namespace Graphics
namespace Kyra {
typedef Common::Functor0<void> UpdateFunctor;
class KyraEngine_v1;
class Screen;
struct ScreenDim {
uint16 sx;
uint16 sy;
uint16 w;
uint16 h;
uint16 unk8;
uint16 unkA;
uint16 unkC;
uint16 unkE;
};
/**
* A class that handles KYRA fonts.
*/
class Font {
public:
virtual ~Font() {}
/**
* Tries to load a file from the given stream
*/
virtual bool load(Common::SeekableReadStream &file) = 0;
/**
* Whether the font draws on the overlay.
*/
virtual bool usesOverlay() const { return false; }
/**
* The font height.
*/
virtual int getHeight() const = 0;
/**
* The font width, this is the maximal character
* width.
*/
virtual int getWidth() const = 0;
/**
* Gets the width of a specific character.
*/
virtual int getCharWidth(uint16 c) const = 0;
/**
* Sets a text palette map. The map contains 16 entries.
*/
virtual void setColorMap(const uint8 *src) = 0;
/**
* Sets a text 16bit palette map. Only used in in EOB II FM-Towns. The map contains 2 entries.
*/
virtual void set16bitColorMap(const uint16 *src) {}
enum FontStyle {
kFSNone = 0,
kFSLeftShadow,
kFSFat
};
/**
* Sets a drawing style. Only rudimentary implementation based on what is needed.
*/
virtual void setStyle(FontStyle style) {}
/**
* Draws a specific character.
*
* TODO/FIXME: Replace this with a nicer API. Currently
* the user has to assure that the character fits.
* We use this API, since it's hard to assure dirty rect
* handling from outside Screen.
*/
virtual void drawChar(uint16 c, byte *dst, int pitch, int bpp) const = 0;
};
/**
* Implementation of the Font interface for DOS fonts.
*
* TODO: Clean up the implementation. For example we might be able
* to not to keep the whole font in memory.
*/
class DOSFont : public Font {
public:
DOSFont();
~DOSFont() { unload(); }
bool load(Common::SeekableReadStream &file);
int getHeight() const { return _height; }
int getWidth() const { return _width; }
int getCharWidth(uint16 c) const;
void setColorMap(const uint8 *src) { _colorMap = src; }
void drawChar(uint16 c, byte *dst, int pitch, int) const;
private:
void unload();
const uint8 *_colorMap;
uint8 *_data;
int _width, _height;
int _numGlyphs;
uint8 *_widthTable;
uint8 *_heightTable;
uint16 *_bitmapOffsets;
};
/**
* Implementation of the Font interface for Kyra 1 style (non-native AmigaDOS) AMIGA fonts.
*/
class AMIGAFont : public Font {
public:
AMIGAFont();
~AMIGAFont() { unload(); }
bool load(Common::SeekableReadStream &file);
int getHeight() const { return _height; }
int getWidth() const { return _width; }
int getCharWidth(uint16 c) const;
void setColorMap(const uint8 *src) {}
void drawChar(uint16 c, byte *dst, int pitch, int) const;
private:
void unload();
int _width, _height;
struct Character {
uint8 yOffset, xOffset, width;
struct Graphics {
uint16 width, height;
uint8 *bitmap;
} graphics;
};
Character _chars[255];
};
/**
* Implementation of the Font interface for FM-Towns/PC98 fonts
*/
class SJISFont : public Font {
public:
SJISFont(Common::SharedPtr<Graphics::FontSJIS> &font, const uint8 invisColor, bool is16Color, bool drawOutline, int extraSpacing);
virtual ~SJISFont() {}
virtual bool usesOverlay() const { return true; }
bool load(Common::SeekableReadStream &) { return true; }
int getHeight() const;
int getWidth() const;
virtual int getCharWidth(uint16 c) const;
void setColorMap(const uint8 *src);
void setStyle(FontStyle style) { _style = style; }
virtual void drawChar(uint16 c, byte *dst, int pitch, int) const;
protected:
const uint8 *_colorMap;
Common::SharedPtr<Graphics::FontSJIS> _font;
int _sjisWidth, _asciiWidth;
int _fontHeight;
const bool _drawOutline;
FontStyle _style;
private:
const uint8 _invisColor;
const bool _isTextMode;
// We use this for cases where the font width returned by getWidth() or getCharWidth() does not match the original.
// The original Japanese game versions use hard coded sjis font widths of 8 or 9. However, this does not necessarily
// depend on whether an outline is used or not (neither LOL/PC-9801 nor LOL/FM-TOWNS use an outline, but the first
// version uses a font width of 8 where the latter uses a font width of 9).
const int _sjisWidthOffset;
};
/**
* A class that manages KYRA palettes.
*
* This class stores the palette data as VGA RGB internally.
*/
class Palette {
public:
Palette(const int numColors);
~Palette();
enum {
kVGABytesPerColor = 3,
kPC98BytesPerColor = 3,
kAmigaBytesPerColor = 2
};
/**
* Load a VGA palette from the given stream.
*/
void loadVGAPalette(Common::ReadStream &stream, int startIndex, int colors);
/**
* Load a HiColor palette from the given stream.
*/
void loadHiColorPalette(Common::ReadStream &stream, int startIndex, int colors);
/**
* Load a EGA palette from the given stream.
*/
void loadEGAPalette(Common::ReadStream &stream, int startIndex, int colors);
/**
* Set default CGA palette. We only need the cyan/magenta/grey mode.
*/
enum CGAIntensity {
kIntensityLow = 0,
kIntensityHigh = 1
};
void setCGAPalette(int palIndex, CGAIntensity intensity);
/**
* Load a AMIGA palette from the given stream.
*/
void loadAmigaPalette(Common::ReadStream &stream, int startIndex, int colors);
/**
* Load a PC98 16 color palette from the given stream.
*/
void loadPC98Palette(Common::ReadStream &stream, int startIndex, int colors);
/**
* Return the number of colors this palette manages.
*/
int getNumColors() const { return _numColors; }
/**
* Set all palette colors to black.
*/
void clear();
/**
* Fill the given indexes with the given component value.
*
* @param firstCol the first color, which should be overwritten.
* @param numCols number of colors, which schould be overwritten.
* @param value color component value, which should be stored.
*/
void fill(int firstCol, int numCols, uint8 value);
/**
* Copy data from another palette.
*
* @param source palette to copy data from.
* @param firstCol the first color of the source which should be copied.
* @param numCols number of colors, which should be copied. -1 all remaining colors.
* @param dstStart the first color, which should be ovewritten. If -1 firstCol will be used as start.
*/
void copy(const Palette &source, int firstCol = 0, int numCols = -1, int dstStart = -1);
/**
* Copy data from a raw VGA palette.
*
* @param source source buffer
* @param firstCol the first color of the source which should be copied.
* @param numCols number of colors, which should be copied.
* @param dstStart the first color, which should be ovewritten. If -1 firstCol will be used as start.
*/
void copy(const uint8 *source, int firstCol, int numCols, int dstStart = -1);
/**
* Fetch a RGB palette.
*
* @return a pointer to the RGB palette data, the client must delete[] it.
*/
uint8 *fetchRealPalette() const;
//XXX
uint8 &operator[](const int index) {
assert(index >= 0 && index <= _numColors * 3);
return _palData[index];
}
const uint8 &operator[](const int index) const {
assert(index >= 0 && index <= _numColors * 3);
return _palData[index];
}
/**
* Gets raw access to the palette.
*
* TODO: Get rid of this.
*/
uint8 *getData() { return _palData; }
const uint8 *getData() const { return _palData; }
private:
uint8 *_palData;
const int _numColors;
static const uint8 _egaColors[];
static const int _egaNumColors;
static const uint8 _cgaColors[4][12];
static const int _cgaNumColors;
};
class Screen {
public:
enum {
SCREEN_W = 320,
SCREEN_H = 200,
SCREEN_PAGE_SIZE = 320 * 200 + 1024,
SCREEN_OVL_SJIS_SIZE = 640 * 400,
SCREEN_PAGE_NUM = 16,
SCREEN_OVLS_NUM = 6
};
enum CopyRegionFlags {
CR_NO_P_CHECK = 0x01
};
enum DrawShapeFlags {
DSF_X_FLIPPED = 0x01,
DSF_Y_FLIPPED = 0x02,
DSF_SCALE = 0x04,
DSF_WND_COORDS = 0x10,
DSF_CENTER = 0x20,
DSF_SHAPE_FADING = 0x100,
DSF_TRANSPARENCY = 0x1000,
DSF_BACKGROUND_FADING = 0x2000,
DSF_CUSTOM_PALETTE = 0x8000
};
enum FontId {
FID_6_FNT = 0,
FID_8_FNT,
FID_9_FNT,
FID_CRED6_FNT,
FID_CRED8_FNT,
FID_BOOKFONT_FNT,
FID_GOLDFONT_FNT,
FID_INTRO_FNT,
FID_SJIS_FNT,
FID_SJIS_TEXTMODE_FNT,
FID_SJIS_LARGE_FNT,
FID_SJIS_SMALL_FNT,
FID_NUM
};
enum FontType {
FTYPE_ASCII = 0,
FTYPE_SJIS
};
Screen(KyraEngine_v1 *vm, OSystem *system, const ScreenDim *dimTable, const int dimTableSize);
virtual ~Screen();
// init
virtual bool init();
virtual void setResolution();
virtual void enableHiColorMode(bool enabled);
void updateScreen();
// debug functions
bool queryScreenDebug() const { return _debugEnabled; }
bool enableScreenDebug(bool enable);
// page cur. functions
int setCurPage(int pageNum);
void clearCurPage();
void copyWsaRect(int x, int y, int w, int h, int dimState, int plotFunc, const uint8 *src,
int unk1, const uint8 *unkPtr1, const uint8 *unkPtr2);
// page 0 functions
void copyToPage0(int y, int h, uint8 page, uint8 *seqBuf);
void shakeScreen(int times);
// page functions
void copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPage, int dstPage, int flags=0);
void copyPage(uint8 srcPage, uint8 dstPage);
void copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *dest);
void copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint8 *src);
void shuffleScreen(int sx, int sy, int w, int h, int srcPage, int dstPage, int ticks, bool transparent);
void fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum = -1, bool xored = false);
void clearPage(int pageNum);
int getPagePixel(int pageNum, int x, int y);
void setPagePixel(int pageNum, int x, int y, uint8 color);
const uint8 *getCPagePtr(int pageNum) const;
uint8 *getPageRect(int pageNum, int x, int y, int w, int h);
// palette handling
void fadeFromBlack(int delay=0x54, const UpdateFunctor *upFunc = 0);
void fadeToBlack(int delay=0x54, const UpdateFunctor *upFunc = 0);
virtual void fadePalette(const Palette &pal, int delay, const UpdateFunctor *upFunc = 0);
virtual void getFadeParams(const Palette &pal, int delay, int &delayInc, int &diff);
virtual int fadePalStep(const Palette &pal, int diff);
void setPaletteIndex(uint8 index, uint8 red, uint8 green, uint8 blue);
virtual void setScreenPalette(const Palette &pal);
// AMIGA version only
bool isInterfacePaletteEnabled() const { return _interfacePaletteEnabled; }
void enableInterfacePalette(bool e);
void setInterfacePalette(const Palette &pal, uint8 r, uint8 g, uint8 b);
virtual void getRealPalette(int num, uint8 *dst);
Palette &getPalette(int num);
void copyPalette(const int dst, const int src);
// gui specific (processing on _curPage)
void drawLine(bool vertical, int x, int y, int length, int color);
void drawClippedLine(int x1, int y1, int x2, int y2, int color);
virtual void drawShadedBox(int x1, int y1, int x2, int y2, int color1, int color2);
void drawBox(int x1, int y1, int x2, int y2, int color);
// font/text handling
virtual bool loadFont(FontId fontId, const char *filename);
FontId setFont(FontId fontId);
int getFontHeight() const;
int getFontWidth() const;
int getCharWidth(uint16 c) const;
int getTextWidth(const char *str);
void printText(const char *str, int x, int y, uint8 color1, uint8 color2);
virtual void setTextColorMap(const uint8 *cmap) = 0;
void setTextColor(const uint8 *cmap, int a, int b);
void setTextColor16bit(const uint16 *cmap16);
const ScreenDim *getScreenDim(int dim) const;
void modifyScreenDim(int dim, int x, int y, int w, int h);
int screenDimTableCount() const { return _dimTableCount; }
void setScreenDim(int dim);
int curDimIndex() const { return _curDimIndex; }
void setTextMarginRight(int x) { _textMarginRight = x; }
uint16 _textMarginRight;
const ScreenDim *_curDim;
// shape handling
uint8 *encodeShape(int x, int y, int w, int h, int flags);
int setNewShapeHeight(uint8 *shape, int height);
int resetShapeHeight(uint8 *shape);
virtual void drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y, int sd, int flags, ...);
// mouse handling
void hideMouse();
void showMouse();
bool isMouseVisible() const;
virtual void setMouseCursor(int x, int y, const byte *shape);
// rect handling
virtual int getRectSize(int w, int h) = 0;
void rectClip(int &x, int &y, int w, int h);
// misc
virtual void loadBitmap(const char *filename, int tempPage, int dstPage, Palette *pal, bool skip=false);
virtual bool loadPalette(const char *filename, Palette &pal);
bool loadPaletteTable(const char *filename, int firstPalette);
virtual void loadPalette(const byte *data, Palette &pal, int bytes);
void setAnimBlockPtr(int size);
void setShapePages(int page1, int page2, int minY = -1, int maxY = 201);
virtual byte getShapeFlag1(int x, int y);
virtual byte getShapeFlag2(int x, int y);
virtual int getDrawLayer(int x, int y);
virtual int getDrawLayer2(int x, int y, int height);
void blockInRegion(int x, int y, int width, int height);
void blockOutRegion(int x, int y, int width, int height);
int _charWidth;
int _charOffset;
int _curPage;
uint8 *_shapePages[2];
int _maskMinY, _maskMaxY;
FontId _currentFont;
FontType _currentFontType;
// decoding functions
static void decodeFrame1(const uint8 *src, uint8 *dst, uint32 size);
static uint16 decodeEGAGetCode(const uint8 *&pos, uint8 &nib);
static void decodeFrame3(const uint8 *src, uint8 *dst, uint32 size, bool isAmiga);
static uint decodeFrame4(const uint8 *src, uint8 *dst, uint32 dstSize);
static void decodeFrameDelta(uint8 *dst, const uint8 *src, bool noXor = false);
static void decodeFrameDeltaPage(uint8 *dst, const uint8 *src, const int pitch, bool noXor);
static void convertAmigaGfx(uint8 *data, int w, int h, int depth = 5, bool wsa = false, int bytesPerPlane = -1);
static void convertAmigaMsc(uint8 *data);
// This seems to be a variant of shuffleScreen (which is used in LoK). At the time of coding (and long after that) the
// fact that this is a double implementation went unnoticed. My - admittedly limited - efforts to get rid of one of these
// implementations were unsatisfactory, though. Each method seems to be optimized to produce accurate results for its
// specifc purpose (LoK for shuffleScreen, EoB/LoL for crossFadeRegion). Merging these methods has no priority, since we
// can well afford the 20 lines of extra code.
void crossFadeRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPage, int dstPage);
uint16 *get16bitPalette() { return _16bitPalette; }
void set16bitShadingLevel(int lvl) { _16bitShadingLevel = lvl; }
protected:
void resetPagePtrsAndBuffers(int pageSize);
uint8 *getPagePtr(int pageNum);
virtual void updateDirtyRects();
void updateDirtyRectsAmiga();
void updateDirtyRectsOvl();
void scale2x(byte *dst, int dstPitch, const byte *src, int srcPitch, int w, int h);
virtual void mergeOverlay(int x, int y, int w, int h);
// overlay specific
byte *getOverlayPtr(int pageNum);
void clearOverlayPage(int pageNum);
void clearOverlayRect(int pageNum, int x, int y, int w, int h);
void copyOverlayRegion(int x, int y, int x2, int y2, int w, int h, int srcPage, int dstPage);
// font/text specific
uint16 fetchChar(const char *&s) const;
void drawChar(uint16 c, int x, int y);
int16 encodeShapeAndCalculateSize(uint8 *from, uint8 *to, int size);
template<bool noXor> static void wrapped_decodeFrameDelta(uint8 *dst, const uint8 *src);
template<bool noXor> static void wrapped_decodeFrameDeltaPage(uint8 *dst, const uint8 *src, const int pitch);
uint8 *_pagePtrs[16];
uint8 *_sjisOverlayPtrs[SCREEN_OVLS_NUM];
uint8 _pageMapping[SCREEN_PAGE_NUM];
bool _useOverlays;
bool _useSJIS;
bool _use16ColorMode;
bool _use256ColorMode;
bool _4bitPixelPacking;
bool _useHiResEGADithering;
bool _useHiColorScreen;
bool _isAmiga;
bool _useAmigaExtraColors;
Common::RenderMode _renderMode;
int _bytesPerPixel;
int _screenPageSize;
uint8 _sjisInvisibleColor;
bool _sjisMixedFontMode;
Palette *_screenPalette;
Common::Array<Palette *> _palettes;
Palette *_internFadePalette;
uint16 shade16bitColor(uint16 col);
uint16 *_16bitPalette;
uint16 *_16bitConversionPalette;
uint8 _16bitShadingLevel;
Font *_fonts[FID_NUM];
uint8 _textColorsMap[16];
uint16 _textColorsMap16bit[2];
uint8 *_decodeShapeBuffer;
int _decodeShapeBufferSize;
uint8 *_animBlockPtr;
int _animBlockSize;
// dimension handling
const ScreenDim *const _dimTable;
ScreenDim **_customDimTable;
const int _dimTableCount;
int _curDimIndex;
// mouse handling
int _mouseLockCount;
const uint8 _cursorColorKey;
virtual void postProcessCursor(uint8 *data, int w, int h, int pitch) {}
enum {
kMaxDirtyRects = 50
};
bool _forceFullUpdate;
bool _paletteChanged;
Common::List<Common::Rect> _dirtyRects;
void addDirtyRect(int x, int y, int w, int h);
OSystem *_system;
KyraEngine_v1 *_vm;
// shape
int drawShapeMarginNoScaleUpwind(uint8 *&dst, const uint8 *&src, int &cnt);
int drawShapeMarginNoScaleDownwind(uint8 *&dst, const uint8 *&src, int &cnt);
int drawShapeMarginScaleUpwind(uint8 *&dst, const uint8 *&src, int &cnt);
int drawShapeMarginScaleDownwind(uint8 *&dst, const uint8 *&src, int &cnt);
int drawShapeSkipScaleUpwind(uint8 *&dst, const uint8 *&src, int &cnt);
int drawShapeSkipScaleDownwind(uint8 *&dst, const uint8 *&src, int &cnt);
void drawShapeProcessLineNoScaleUpwind(uint8 *&dst, const uint8 *&src, int &cnt, int16 scaleState);
void drawShapeProcessLineNoScaleDownwind(uint8 *&dst, const uint8 *&src, int &cnt, int16 scaleState);
void drawShapeProcessLineScaleUpwind(uint8 *&dst, const uint8 *&src, int &cnt, int16 scaleState);
void drawShapeProcessLineScaleDownwind(uint8 *&dst, const uint8 *&src, int &cnt, int16 scaleState);
void drawShapePlotType0(uint8 *dst, uint8 cmd);
void drawShapePlotType1(uint8 *dst, uint8 cmd);
void drawShapePlotType3_7(uint8 *dst, uint8 cmd);
void drawShapePlotType4(uint8 *dst, uint8 cmd);
void drawShapePlotType5(uint8 *dst, uint8 cmd);
void drawShapePlotType6(uint8 *dst, uint8 cmd);
void drawShapePlotType8(uint8 *dst, uint8 cmd);
void drawShapePlotType9(uint8 *dst, uint8 cmd);
void drawShapePlotType11_15(uint8 *dst, uint8 cmd);
void drawShapePlotType12(uint8 *dst, uint8 cmd);
void drawShapePlotType13(uint8 *dst, uint8 cmd);
void drawShapePlotType14(uint8 *dst, uint8 cmd);
void drawShapePlotType16(uint8 *dst, uint8 cmd);
void drawShapePlotType20(uint8 *dst, uint8 cmd);
void drawShapePlotType21(uint8 *dst, uint8 cmd);
void drawShapePlotType33(uint8 *dst, uint8 cmd);
void drawShapePlotType37(uint8 *dst, uint8 cmd);
void drawShapePlotType48(uint8 *dst, uint8 cmd);
void drawShapePlotType52(uint8 *dst, uint8 cmd);
typedef int (Screen::*DsMarginSkipFunc)(uint8 *&dst, const uint8 *&src, int &cnt);
typedef void (Screen::*DsLineFunc)(uint8 *&dst, const uint8 *&src, int &cnt, int16 scaleState);
typedef void (Screen::*DsPlotFunc)(uint8 *dst, uint8 cmd);
DsMarginSkipFunc _dsProcessMargin;
DsMarginSkipFunc _dsScaleSkip;
DsLineFunc _dsProcessLine;
DsPlotFunc _dsPlot;
const uint8 *_dsShapeFadingTable;
int _dsShapeFadingLevel;
const uint8 *_dsColorTable;
const uint8 *_dsTransparencyTable1;
const uint8 *_dsTransparencyTable2;
const uint8 *_dsBackgroundFadingTable;
int _dsDrawLayer;
uint8 *_dsDstPage;
int _dsTmpWidth;
int _dsOffscreenLeft;
int _dsOffscreenRight;
int _dsScaleW;
int _dsScaleH;
int _dsOffscreenScaleVal1;
int _dsOffscreenScaleVal2;
int _drawShapeVar1;
int _drawShapeVar3;
int _drawShapeVar4;
int _drawShapeVar5;
// AMIGA version
bool _interfacePaletteEnabled;
// debug
bool _debugEnabled;
};
} // End of namespace Kyra
#endif
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