Symaptic: os/graphics/graphicsdeviceinterface/directgdiadaptation/swsrc/swdirectgdiengine.h@260cb5ec6c19

     1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    16 #ifndef CSWDIRECTGDIENGINE_H

    17 #define CSWDIRECTGDIENGINE_H

    19 /**

    20 @file

    21 @internalComponent

    22 */

    24 #include "directgdiadapter.h"

    25 #include "swdirectgdibitmap.h"

    26 #include <graphics/directgdiengine.h>

    27 #include <e32base.h>

    28 #include <bitdraw.h>

    29 #include <bitdraworigin.h>

    30 #include <bitmap.h>

    32 // For use when testing the code, allows the fast blending to be disabled so back to back comparisons

    33 // can done be to check either timing or exact output.

    34 //#define __ALLOW_FAST_BLEND_DISABLE__

    36 class RDirectGdiDrawableSource;

    37 class CSwDirectGdiDriverImpl;

    38 class CSwDirectGdiImageSourceImpl;

    39 class CSwDirectGdiImageTargetImpl;

    40 class CFbsDrawDevice;

    41 class CBitwiseBitmap;

    42 class MFastBlend;

    44 /**

    45 Concrete (reference) implementation of a MDirectGdi Engine. It is a

    46 collection of drawing routines which implement the software adaptation of DirectGDI.

    47 */

    48 NONSHARABLE_CLASS(CSwDirectGdiEngine) : public CBase, public MDirectGdiEngine, public MDrawDeviceOrigin

    49 	{

    50 public:

    51 	CSwDirectGdiEngine(CSwDirectGdiDriverImpl*);

    52 	virtual ~CSwDirectGdiEngine();

    54 	// from MDirectGdiEngine

    55 	TInt Activate(RDirectGdiImageTarget& aTarget);

    56 	void Deactivate();

    57 	void SetOrigin(const TPoint& aOrigin);

    58 	void SetClippingRegion(const TRegion& aRegion);

    59 	void ResetClippingRegion();

    60 	void SetDrawMode(DirectGdi::TDrawMode aMode);

    61 	void SetPenColor(const TRgb& aColor);

    62 	void SetPenStyle(DirectGdi::TPenStyle aStyle);

    63 	void SetPenSize(const TSize& aSize);

    64 	void SetTextShadowColor(const TRgb& aColor);

    65 	void SetBrushColor(const TRgb& aColor);

    66 	void SetBrushStyle(DirectGdi::TBrushStyle aStyle);

    67 	void SetBrushOrigin(const TPoint& aOrigin);

    68 	TInt SetBrushPattern(const CFbsBitmap& aPattern);

    69 	void ResetBrushPattern();

    70 	void SetFont(TUint32 aFontId);

    71 	void ResetFont();

    72 	void Reset();

    73 	void Clear(const TRect& aRect);

    74 	void Clear();

    75 	void MoveTo(const TPoint& aPoint);

    76 	void MoveBy(const TPoint& aVector);

    77 	void Plot(const TPoint& aPoint);

    78 	void DrawLine(const TPoint& aStart, const TPoint& aEnd);

    79 	void DrawLineTo(const TPoint& aPoint);

    80 	void DrawLineBy(const TPoint& aVector);

    81 	void DrawRect(const TRect& aRect);

    82 	void DrawRoundRect(const TRect& aRect, const TSize& aCornerSize);

    83 	void DrawPolyLine(const TArray<TPoint>& aPointList);

    84 	void DrawPolyLineNoEndPoint(const TArray<TPoint>& aPointList);

    85 	void DrawPolygon(const TArray<TPoint>& aPoints, DirectGdi::TFillRule aRule);

    86 	void DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);

    87 	void DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);

    88 	void DrawEllipse(const TRect& aRect);

    89 	void BitBlt(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect);

    90 	void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect,

    91 			const CFbsBitmap& aMask, TBool aInvertMask);

    92 	void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aBitmap, const TRect& aSrcRect,

    93 			const CFbsBitmap& aAlpha, const TPoint& aAlphaPos);

    94 	void DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aBitmap, const TRect& aSrcRect);

    95 	void DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap& aBitmap, const TRect& aSrcRect,

    96 			const CFbsBitmap& aMask, TBool aInvertMask);

    97 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource, const TRect& aSrcRect,

    98 			DirectGdi::TGraphicsRotation aRotation);

    99 	void DrawResource(const TPoint& aPos, const RDirectGdiDrawableSource& aSource,

   100 			DirectGdi::TGraphicsRotation aRotation);

   101 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource,

   102 			DirectGdi::TGraphicsRotation aRotation);

   103 	void DrawResource(const TRect& aDestRect, const RDirectGdiDrawableSource& aSource, const TDesC8& aParam);

   104 	void DrawGlyph(const TPoint& aPos, const TChar aChar, const TUint8* aGlyphImage,

   105 			const TGlyphBitmapType aGlyphBitmapType, const TSize& aGlyphImageSize, const TRect& aClipRect,

   106 			const DirectGdi::TGraphicsRotation aRotation = DirectGdi::EGraphicsRotationNone);

   107 	void CopyRect(const TPoint& aOffset, const TRect& aRect);

   108 	void ExternalizeL(RWriteStream& aWriteStream);

   109 	void InternalizeL(RReadStream& aReadStream);

   110 	TInt GetInterface(TUid aInterfaceId, TAny*& aInterface);

   111 	void BeginDrawGlyph();

   112 	void EndDrawGlyph();

   114 	//from MDrawDeviceOrigin

   115 	TInt Set(const TPoint& aDrawOrigin);

   116 	void Get(TPoint& aDrawOrigin);

   118 private:

   119 	CSwDirectGdiEngine();

   120 	TBool AnalyseEllipse(const TRect& rc,TPoint& srad,TPoint& erad, TInt& startq,TInt& endq,TBool* quads);

   121 	TUint32* ClipBinaryArray(TUint32* aArray, TUint32* aArrayLimit, TInt& aDataWd, TInt& aDataHt, TPoint& aPos, const TRect& aClipRect);

   122 	void ClipFillLine(TPoint aLeft,TPoint aRight, TRect aClipRect);

   123 	void CopyCharLine(TUint32* aBinaryDataPtr, TInt aBufferWords, const TUint8* aData, TInt aBitShift, TInt aCharWidth);

   124 	void DrawPolyLineNoEndPoint(const TPoint* aPointList, TInt aNumPoints);

   125 	void DoBitBlt(const TPoint& aDest, CBitwiseBitmap* aSrce, TUint32* aBase, TInt aStride,

   126 			const TRect& aSrceRect);

   127 	void DoBitBltAlpha(const TPoint& aDest,CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,

   128 			const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap,TUint32* aMaskBase,

   129 			const TPoint& aAlphaPoint, TBool aInvertMask);

   130 	void DoBitBltMasked(const TPoint& aDest, CBitwiseBitmap* aSourceBitmap,

   131 			TUint32* aSourceBase, const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap,

   132 			TUint32* aMaskBase, TBool aInvertMask);

   133 	void DoBitBltMaskedFlicker(const TPoint& aDest, CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,

   134 			  const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap, TUint32* aMaskBase, TBool aInvertMask);

   135 	void DoCopyRect(const TPoint& aOffset, const TRect& rect);

   136 	void DoDrawLine(TPoint aPt1,TPoint aPt2,TBool aDrawStartPoint);

   137 	void DoPlot(const TPoint& aPoint);

   138 	void DoDrawBitmap(const TRect& aDestRect, CBitwiseBitmap* aBitmap, TUint32* aBase, TInt aStride,

   139 			 const TRect& aSrceRect, const TRect& aClipRect);

   140 	void DoDrawBitmapMasked(const TRect& aDestRect, CBitwiseBitmap* aSourceBitmap, TUint32* aSourceBase,

   141 			   const TRect& aSourceRect, CBitwiseBitmap* aMaskBitmap, TUint32* aMaskBase, TBool aInvertMask,

   142 			   const TRect& aClipRect);

   143 	TInt CheckImageSource(TInt aSourceHandle, CSwDirectGdiImageSourceImpl*& aImpl, TSize* aImgSize);

   144 	void DrawResourceCommon(const TRect& aDestRect,	const CSwDirectGdiImageSourceImpl* aImpl,

   145 			const TRect& aSrcRect, DirectGdi::TGraphicsRotation aRotation);

   146 	void DoDrawResource(const TRect& aDestRect, const CSwDirectGdiImageSourceImpl* aImpl,

   147 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation, const TRect& aClipRect);

   148 	void DoBlitResource(const TPoint& aDest, const CSwDirectGdiImageSourceImpl* aImpl,

   149 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation);

   150 	void DoScaledBlitResource(const TRect& aDestRect, const CSwDirectGdiImageSourceImpl* aImpl,

   151 			const TRect& aSrceRect, DirectGdi::TGraphicsRotation aRotation, const TRect& aClipRect);

   152 	void DoDrawDottedWideLine(const TPoint& aPt1, const TPoint& aPt2, TBool aDrawStartPoint,

   153 			 const TRect& aScreenRect, TRect aClipRect);

   154 	void DoDrawSolidWideLine(const TPoint& aPt1, const TPoint& aPt2, TBool aDrawStartPoint,

   155 			 const TRect& aScreenRect, TRect aClipRect);

   156 	void DrawBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   157 						 const TSize& aGlyphImageSize, const TRect& aClipRect);

   158 	void DrawLargeBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   159 							  const TSize& aGlyphImageSize, const TRect& aClipRect);

   160 	void DrawRotatedBitmapGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   161 								const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);

   162 	void DrawAntiAliasedGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   163 							  const TSize& aGlyphImageSize, const TRect& aClipRect);

   164 	void DrawRotatedAntiAliasedGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   165 									 const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);

   166 	void DrawFourColourGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   167 							 const TSize& aGlyphImageSize, const TRect& aClipRect);

   168 	void DrawRotatedFourColourGlyph(const TPoint& aPos, const TUint8* aGlyphImage,

   169 									const TSize& aGlyphImageSize, const TRect& aClipRect, const DirectGdi::TGraphicsRotation aRotation);

   170 	void EllipseFill(const TRect& aRect);

   171 	void EllipseOutline(const TRect& aRect);

   172 	void EllipseOutlineWide(const TRect& aRect);

   173 	TUint32* GetScanLineOffsetPtr(CBitwiseBitmap* aSrce, TUint32*& aSlptr, TInt aLength, TPoint aPixel,

   174 								  TUint32* aBase, TLineScanningPosition& aLineScanningPosition, TUint aXOffset);

   175 	inline static TInt16 Load16(const TUint8* aPtr) { return TInt16(aPtr[0]+(aPtr[1]<<8)); }

   176 	TUint MemoryOffsetForPixelPitch(TUint aX, TDisplayMode aDisplayMode) const;

   177 	void OutputCharLineMultiplied(TPoint aPrintPos, TUint32* aBuffer, TInt aDataLength, TInt aNum, const TRect& aClipRect);

   178 	void OutputCharLineVertical(TPoint aPrintPos, TUint32* aBuffer, TInt aDataLength, TInt aNum, TInt aDirection, const TRect& aClipRect);

   179 	TInt PenAllocate();

   180 	void PenDrawClipped(TPoint aPoint, const TRect& aClipRect);

   181 	void PenDrawDeferred(TPoint aPoint,TInt* aArray,TInt aFirstElement);

   182 	void PieArcOutline(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius, TBool pie);

   183 	void PieFill(const TRect& ellrect, const TPoint& aStartIntersect, const TPoint& aEndIntersect,

   184 			TInt aStartQuadrant, TInt aEndQuadrant, const TBool* aQuadrants);

   185 	void PieShell(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius,

   186 				  const TBool* quads, TInt startquad, TInt endquad, TRect aClipRect);

   187 	void PieSliver(const TRect& ellrect,const TPoint& startradius, const TPoint& endradius,

   188 				   TInt quad, TRect aClipRect);

   189 	void PieTriangles(TBool aInside,const TPoint& aStart,const TPoint& aEnd, TRect aClipRect);

   190 	void PolyFill(const TPoint* aPointList, TInt aNumPoints, DirectGdi::TFillRule aFillRule);

   191 	void PolyFill(const TArray<TPoint>* aPointList, DirectGdi::TFillRule aFillRule);

   192 	void PolyFillLarge(const TArray<TPoint>* aPointList, DirectGdi::TFillRule aFillRule);

   193 	void PolyFillLarge(const TPoint* aPointList, TInt aNumPoints, DirectGdi::TFillRule aFillRule);

   194 	void PolyOutline(const TArray<TPoint>* aPointList);

   195 	void PolyOutline(const TPoint* aPointList,TInt aNumPoints);

   196 	void RectFill(const TRect& aRect);

   197 	void ResetPenArray();

   198 	void RoundRectFill(const TRect& aRect, const TSize& aCornerSize);

   199 	void RoundRectOutline(const TRect& aRect, const TSize& aCornerSize);

   200 	void SetPenArray(TInt* aPenArray);

   201 	void TruncateRect(TRect& aRect);

   202 	void Rotate90(TRect& aRect, const TPoint& aOrig);

   203 	void Rotate180(TRect& aRect, const TPoint& aOrig);

   204 	void Rotate270(TRect& aRect, const TPoint& aOrig);

   205 	TBool RotatedSizeMatch(const TRect& aDst, const TRect& aSrc, DirectGdi::TGraphicsRotation aRot);

   206 	void TileScanLine(TPtr8& aScanLine, TInt aLengthInPixels, const TPoint& aSrcPt,

   207 			const CBitwiseBitmap* aMaskBitmap, TLineScanningPosition& aScanLinePos,

   208 			TUint32* aMaskBase, TDisplayMode aDisplayMode);

   209 	TInt FastBlendInterface(const CBitwiseBitmap* aSource, const CBitwiseBitmap* aMask, MFastBlend*& aFastBlend) const;

   210 	inline CGraphicsContext::TDrawMode GcDrawMode(DirectGdi::TDrawMode aMode) const ;

   211 	TDisplayMode ScanLineBufferDisplayMode(CFbsDrawDevice* aDrawDevice);

   213 private:

   214 	CSwDirectGdiBitmap iBrushBitmap;

   215 	TRgb iBrushColor;

   216 	TPoint iBrushOrigin;

   217 	DirectGdi::TBrushStyle iBrushStyle;

   218 	TRegionFix<1> iDefaultRegion;

   219 	const TRegion* iDefaultRegionPtr;

   220 	TInt iDotLength;

   221 	TInt iDotMask;

   222 	TInt iDotParam;

   223 	TInt iDotDirection;

   224 	CFbsDrawDevice* iDrawDevice;

   225 	DirectGdi::TDrawMode iDrawMode;

   226 	CSwDirectGdiDriverImpl* iDriver;

   227 	TPoint iLinePosition;

   228 	TPoint iOrigin;

   229 	TPoint iDrawOrigin;

   230 	TInt* iPenArray;

   231 	TRgb iPenColor;			/**< The current pen colour. The default pen colour is black. */

   232 	TRgb iTextShadowColor;	/**< Colour for text shadows. */

   233 	TSize iPenSize;

   234 	DirectGdi::TPenStyle iPenStyle;

   235 	RRegion iClippingRegion;

   236     CSwDirectGdiImageTargetImpl* iRenderingTarget;

   237 #if defined(__ALLOW_FAST_BLEND_DISABLE__)

   238     TBool iFastBlendDisabled;

   239 #endif

   241 	};

   243 /**

   244 Converts a draw-mode enum from the DirectGdi namespace to the CGraphicsContext namespace.

   245 */

   246 inline CGraphicsContext::TDrawMode CSwDirectGdiEngine::GcDrawMode(DirectGdi::TDrawMode aMode) const

   247 	{

   248 	switch(aMode)

   249 		{

   250 		case DirectGdi::EDrawModePEN:

   251 			return CGraphicsContext::EDrawModePEN;

   252 		case DirectGdi::EDrawModeWriteAlpha:

   253 			return CGraphicsContext::EDrawModeWriteAlpha;

   254 		default:

   255 			return CGraphicsContext::EDrawModePEN;

   256 		}

   257 	}

   259 #endif /*CSWDIRECTGDIENGINE_H*/

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--