sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef CSWDIRECTGDIENGINE_H
sl@0: #define CSWDIRECTGDIENGINE_H
sl@0: 
sl@0: /**
sl@0: @file
sl@0: @internalComponent
sl@0: */
sl@0: 
sl@0: #include "directgdiadapter.h"
sl@0: #include "swdirectgdibitmap.h"
sl@0: #include <graphics/directgdiengine.h>
sl@0: #include <e32base.h>
sl@0: #include <bitdraw.h>
sl@0: #include <bitdraworigin.h>
sl@0: #include <bitmap.h>
sl@0: 
sl@0: // For use when testing the code, allows the fast blending to be disabled so back to back comparisons
sl@0: // can done be to check either timing or exact output.
sl@0: //#define __ALLOW_FAST_BLEND_DISABLE__
sl@0: 
sl@0: class RDirectGdiDrawableSource;
sl@0: class CSwDirectGdiDriverImpl;
sl@0: class CSwDirectGdiImageSourceImpl;
sl@0: class CSwDirectGdiImageTargetImpl;
sl@0: class CFbsDrawDevice;
sl@0: class CBitwiseBitmap;
sl@0: class MFastBlend;
sl@0: 
sl@0: /**
sl@0: Concrete (reference) implementation of a MDirectGdi Engine. It is a
sl@0: collection of drawing routines which implement the software adaptation of DirectGDI.
sl@0: */
sl@0: NONSHARABLE_CLASS(CSwDirectGdiEngine) : public CBase, public MDirectGdiEngine, public MDrawDeviceOrigin
sl@0: 	{
sl@0: public:
sl@0: 	CSwDirectGdiEngine(CSwDirectGdiDriverImpl*);
sl@0: 	virtual ~CSwDirectGdiEngine();
sl@0: 	
sl@0: 	// from MDirectGdiEngine
sl@0: 	TInt Activate(RDirectGdiImageTarget& aTarget);
sl@0: 	void Deactivate();
sl@0: 	void SetOrigin(const TPoint& aOrigin);
sl@0: 	void SetClippingRegion(const TRegion& aRegion);
sl@0: 	void ResetClippingRegion();
sl@0: 	void SetDrawMode(DirectGdi::TDrawMode aMode);
sl@0: 	void SetPenColor(const TRgb& aColor);
sl@0: 	void SetPenStyle(DirectGdi::TPenStyle aStyle);
sl@0: 	void SetPenSize(const TSize& aSize);
sl@0: 	void SetTextShadowColor(const TRgb& aColor);
sl@0: 	void SetBrushColor(const TRgb& aColor);
sl@0: 	void SetBrushStyle(DirectGdi::TBrushStyle aStyle);
sl@0: 	void SetBrushOrigin(const TPoint& aOrigin);
sl@0: 	TInt SetBrushPattern(const CFbsBitmap& aPattern);
sl@0: 	void ResetBrushPattern();
sl@0: 	void SetFont(TUint32 aFontId);
sl@0: 	void ResetFont();
sl@0: 	void Reset();
sl@0: 	void Clear(const TRect& aRect);
sl@0: 	void Clear();
sl@0: 	void MoveTo(const TPoint& aPoint);
sl@0: 	void MoveBy(const TPoint& aVector);
sl@0: 	void Plot(const TPoint& aPoint);
sl@0: 	void DrawLine(const TPoint& aStart, const TPoint& aEnd);
sl@0: 	void DrawLineTo(const TPoint& aPoint);
sl@0: 	void DrawLineBy(const TPoint& aVector);
sl@0: 	void DrawRect(const TRect& aRect);
sl@0: 	void DrawRoundRect(const TRect& aRect, const TSize& aCornerSize);
sl@0: 	void DrawPolyLine(const TArray<TPoint>& aPointList);
sl@0: 	void DrawPolyLineNoEndPoint(const TArray<TPoint>& aPointList);
sl@0: 	void DrawPolygon(const TArray<TPoint>& aPoints, DirectGdi::TFillRule aRule);
sl@0: 	void DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
sl@0: 	void DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
sl@0: 	void DrawEllipse(const TRect& aRect);
sl@0: 	void BitBlt(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect);
sl@0: 	void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect,				
sl@0: 			const CFbsBitmap& aMask, TBool aInvertMask);	
sl@0: 	void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect,				
sl@0: 			const CFbsBitmap& aAlpha, const TPoint& aAlphaPos);
sl@0: 	void DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aBitmap, const TRect& aSrcRect);	
sl@0: 	void DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap& aBitmap, const TRect& aSrcRect,				
sl@0: 			const CFbsBitmap& aMask, TBool aInvertMask);	
sl@0: 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource, const TRect& aSrcRect,
sl@0: 			DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DrawResource(const TPoint& aPos, const RDirectGdiDrawableSource& aSource,
sl@0: 			DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource,
sl@0: 			DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource, const TDesC8& aParam);
sl@0: 	void DrawGlyph(const TPoint& aPos, const TChar aChar, const TUint8* aGlyphImage,
sl@0: 			const TGlyphBitmapType aGlyphBitmapType, const TSize& aGlyphImageSize, const TRect& aClipRect,
sl@0: 			const DirectGdi::TGraphicsRotation aRotation = DirectGdi::EGraphicsRotationNone);	
sl@0: 	void CopyRect(const TPoint& aOffset, const TRect& aRect);
sl@0: 	void ExternalizeL(RWriteStream& aWriteStream);
sl@0: 	void InternalizeL(RReadStream& aReadStream);
sl@0: 	TInt GetInterface(TUid aInterfaceId, TAny*& aInterface);	
sl@0: 	void BeginDrawGlyph();
sl@0: 	void EndDrawGlyph();
sl@0: 	
sl@0: 	//from MDrawDeviceOrigin 
sl@0: 	TInt Set(const TPoint& aDrawOrigin);
sl@0: 	void Get(TPoint& aDrawOrigin);
sl@0: 
sl@0: private:
sl@0: 	CSwDirectGdiEngine();
sl@0: 	TBool AnalyseEllipse(const TRect& rc,TPoint& srad,TPoint& erad, TInt& startq,TInt& endq,TBool* quads);
sl@0: 	TUint32* ClipBinaryArray(TUint32* aArray, TUint32* aArrayLimit, TInt& aDataWd, TInt& aDataHt, TPoint& aPos, const TRect& aClipRect);
sl@0: 	void ClipFillLine(TPoint aLeft,TPoint aRight, TRect aClipRect);
sl@0: 	void CopyCharLine(TUint32* aBinaryDataPtr, TInt aBufferWords, const TUint8* aData, TInt aBitShift, TInt aCharWidth);
sl@0: 	void DrawPolyLineNoEndPoint(const TPoint* aPointList, TInt aNumPoints);
sl@0: 	void DoBitBlt(const TPoint& aDest, CBitwiseBitmap* aSrce, TUint32* aBase, TInt aStride,
sl@0: 			const TRect& aSrceRect);
sl@0: 	void DoBitBltAlpha(const TPoint& aDest,CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,
sl@0: 			const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap,TUint32* aMaskBase,
sl@0: 			const TPoint& aAlphaPoint, TBool aInvertMask);
sl@0: 	void DoBitBltMasked(const TPoint& aDest, CBitwiseBitmap* aSourceBitmap, 
sl@0: 			TUint32* aSourceBase, const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap,
sl@0: 			TUint32* aMaskBase, TBool aInvertMask);	
sl@0: 	void DoBitBltMaskedFlicker(const TPoint& aDest, CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,
sl@0: 			  const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap, TUint32* aMaskBase, TBool aInvertMask);
sl@0: 	void DoCopyRect(const TPoint& aOffset, const TRect& rect);
sl@0: 	void DoDrawLine(TPoint aPt1,TPoint aPt2,TBool aDrawStartPoint);
sl@0: 	void DoPlot(const TPoint& aPoint);
sl@0: 	void DoDrawBitmap(const TRect& aDestRect, CBitwiseBitmap* aBitmap, TUint32* aBase, TInt aStride,
sl@0: 			 const TRect& aSrceRect, const TRect& aClipRect);
sl@0: 	void DoDrawBitmapMasked(const TRect& aDestRect, CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,
sl@0: 			   const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap, TUint32* aMaskBase, TBool aInvertMask,
sl@0: 			   const TRect& aClipRect);
sl@0: 	TInt CheckImageSource(TInt aSourceHandle, CSwDirectGdiImageSourceImpl*& aImpl, TSize* aImgSize);
sl@0: 	void DrawResourceCommon(const TRect& aDestRect,	const CSwDirectGdiImageSourceImpl* aImpl,
sl@0: 			const TRect& aSrcRect, DirectGdi::TGraphicsRotation aRotation);		
sl@0: 	void DoDrawResource(const TRect& aDestRect, const CSwDirectGdiImageSourceImpl* aImpl,
sl@0: 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation, const TRect& aClipRect);
sl@0: 	void DoBlitResource(const TPoint& aDest, const CSwDirectGdiImageSourceImpl* aImpl,
sl@0: 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DoScaledBlitResource(const TRect& aDestRect, const CSwDirectGdiImageSourceImpl* aImpl,
sl@0: 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation, const TRect& aClipRect);
sl@0: 	void DoDrawDottedWideLine(const TPoint& aPt1, const TPoint& aPt2, TBool aDrawStartPoint,
sl@0: 			 const TRect& aScreenRect, TRect aClipRect);
sl@0: 	void DoDrawSolidWideLine(const TPoint& aPt1, const TPoint& aPt2, TBool aDrawStartPoint,
sl@0: 			 const TRect& aScreenRect, TRect aClipRect);
sl@0: 	void DrawBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 						 const TSize& aGlyphImageSize, const TRect& aClipRect);
sl@0: 	void DrawLargeBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 							  const TSize& aGlyphImageSize, const TRect& aClipRect);
sl@0: 	void DrawRotatedBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 								const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DrawAntiAliasedGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 							  const TSize& aGlyphImageSize, const TRect& aClipRect);
sl@0: 	void DrawRotatedAntiAliasedGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 									 const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void DrawFourColourGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 							 const TSize& aGlyphImageSize, const TRect& aClipRect);
sl@0: 	void DrawRotatedFourColourGlyph(const TPoint& aPos, const TUint8* aGlyphImage,
sl@0: 									const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);
sl@0: 	void EllipseFill(const TRect& aRect);
sl@0: 	void EllipseOutline(const TRect& aRect);
sl@0: 	void EllipseOutlineWide(const TRect& aRect);
sl@0: 	TUint32* GetScanLineOffsetPtr(CBitwiseBitmap* aSrce, TUint32*& aSlptr, TInt aLength, TPoint aPixel,
sl@0: 								  TUint32* aBase, TLineScanningPosition& aLineScanningPosition, TUint aXOffset);
sl@0: 	inline static TInt16 Load16(const TUint8* aPtr) { return TInt16(aPtr[0]+(aPtr[1]<<8)); }
sl@0: 	TUint MemoryOffsetForPixelPitch(TUint aX, TDisplayMode aDisplayMode) const;
sl@0: 	void OutputCharLineMultiplied(TPoint aPrintPos, TUint32* aBuffer, TInt aDataLength, TInt aNum, const TRect& aClipRect);
sl@0: 	void OutputCharLineVertical(TPoint aPrintPos, TUint32* aBuffer, TInt aDataLength, TInt aNum, TInt aDirection, const TRect& aClipRect);
sl@0: 	TInt PenAllocate();
sl@0: 	void PenDrawClipped(TPoint aPoint, const TRect& aClipRect);
sl@0: 	void PenDrawDeferred(TPoint aPoint,TInt* aArray,TInt aFirstElement);
sl@0: 	void PieArcOutline(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius, TBool pie);
sl@0: 	void PieFill(const TRect& ellrect, const TPoint& aStartIntersect, const TPoint& aEndIntersect,
sl@0: 			TInt aStartQuadrant, TInt aEndQuadrant, const TBool* aQuadrants);
sl@0: 	void PieShell(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius,
sl@0: 				  const TBool* quads, TInt startquad, TInt endquad, TRect aClipRect);
sl@0: 	void PieSliver(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius,
sl@0: 				   TInt quad, TRect aClipRect);
sl@0: 	void PieTriangles(TBool aInside,const TPoint& aStart,const TPoint& aEnd, TRect aClipRect);
sl@0: 	void PolyFill(const TPoint* aPointList, TInt aNumPoints, DirectGdi::TFillRule aFillRule);
sl@0: 	void PolyFill(const TArray<TPoint>* aPointList, DirectGdi::TFillRule aFillRule);
sl@0: 	void PolyFillLarge(const TArray<TPoint>* aPointList, DirectGdi::TFillRule aFillRule);
sl@0: 	void PolyFillLarge(const TPoint* aPointList, TInt aNumPoints, DirectGdi::TFillRule aFillRule);
sl@0: 	void PolyOutline(const TArray<TPoint>* aPointList);
sl@0: 	void PolyOutline(const TPoint* aPointList,TInt aNumPoints);
sl@0: 	void RectFill(const TRect& aRect);
sl@0: 	void ResetPenArray();
sl@0: 	void RoundRectFill(const TRect& aRect, const TSize& aCornerSize);
sl@0: 	void RoundRectOutline(const TRect& aRect, const TSize& aCornerSize);
sl@0: 	void SetPenArray(TInt* aPenArray);
sl@0: 	void TruncateRect(TRect& aRect);
sl@0: 	void Rotate90(TRect& aRect, const TPoint& aOrig);
sl@0: 	void Rotate180(TRect& aRect, const TPoint& aOrig);
sl@0: 	void Rotate270(TRect& aRect, const TPoint& aOrig);
sl@0: 	TBool RotatedSizeMatch(const TRect& aDst, const TRect& aSrc, DirectGdi::TGraphicsRotation aRot);
sl@0: 	void TileScanLine(TPtr8& aScanLine, TInt aLengthInPixels, const TPoint& aSrcPt,
sl@0: 			const CBitwiseBitmap* aMaskBitmap, TLineScanningPosition& aScanLinePos, 
sl@0: 			TUint32* aMaskBase, TDisplayMode aDisplayMode);
sl@0: 	TInt FastBlendInterface(const CBitwiseBitmap* aSource, const CBitwiseBitmap* aMask, MFastBlend*& aFastBlend) const;
sl@0: 	inline CGraphicsContext::TDrawMode GcDrawMode(DirectGdi::TDrawMode aMode) const ;
sl@0: 	TDisplayMode ScanLineBufferDisplayMode(CFbsDrawDevice* aDrawDevice);
sl@0: 
sl@0: private:
sl@0: 	CSwDirectGdiBitmap iBrushBitmap;
sl@0: 	TRgb iBrushColor;
sl@0: 	TPoint iBrushOrigin;
sl@0: 	DirectGdi::TBrushStyle iBrushStyle;	
sl@0: 	TRegionFix<1> iDefaultRegion;
sl@0: 	const TRegion* iDefaultRegionPtr;
sl@0: 	TInt iDotLength;
sl@0: 	TInt iDotMask;
sl@0: 	TInt iDotParam;
sl@0: 	TInt iDotDirection;
sl@0: 	CFbsDrawDevice* iDrawDevice;
sl@0: 	DirectGdi::TDrawMode iDrawMode;
sl@0: 	CSwDirectGdiDriverImpl* iDriver;
sl@0: 	TPoint iLinePosition;
sl@0: 	TPoint iOrigin;
sl@0: 	TPoint iDrawOrigin;
sl@0: 	TInt* iPenArray;
sl@0: 	TRgb iPenColor;			/**< The current pen colour. The default pen colour is black. */
sl@0: 	TRgb iTextShadowColor;	/**< Colour for text shadows. */
sl@0: 	TSize iPenSize;
sl@0: 	DirectGdi::TPenStyle iPenStyle;	
sl@0: 	RRegion iClippingRegion;
sl@0:     CSwDirectGdiImageTargetImpl* iRenderingTarget;
sl@0: #if defined(__ALLOW_FAST_BLEND_DISABLE__)
sl@0:     TBool iFastBlendDisabled;
sl@0: #endif
sl@0: 
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: Converts a draw-mode enum from the DirectGdi namespace to the CGraphicsContext namespace.
sl@0: */
sl@0: inline CGraphicsContext::TDrawMode CSwDirectGdiEngine::GcDrawMode(DirectGdi::TDrawMode aMode) const
sl@0: 	{
sl@0: 	switch(aMode)
sl@0: 		{
sl@0: 		case DirectGdi::EDrawModePEN:
sl@0: 			return CGraphicsContext::EDrawModePEN;
sl@0: 		case DirectGdi::EDrawModeWriteAlpha:
sl@0: 			return CGraphicsContext::EDrawModeWriteAlpha;
sl@0: 		default:
sl@0: 			return CGraphicsContext::EDrawModePEN;
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: #endif /*CSWDIRECTGDIENGINE_H*/