--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/uigraphics/NVGRenderStage/src/nvgrenderstage.cpp Mon Aug 23 14:34:16 2010 +0100
@@ -0,0 +1,1176 @@
+// Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+// Symbian Foundation Ltd- conversion from t_extendedbitmaprenderstage
+//
+// Description:
+//
+
+#include "nvgrenderstage.h"
+#include <graphics/wsrenderstage.h>
+#include <s32mem.h>
+#include <AknIconHeader.h>
+#include <AknIconUtils.h>
+
+TCachedConversion::TCachedConversion() :
+ iLink(), iCachedResult(NULL)
+ {}
+
+TCachedConversion::~TCachedConversion()
+ {
+ delete iCachedResult;
+ }
+
+const TUid KUidNvgExtendedBitmap = {0x39b9273e};
+
+CNvgRenderStage::CNvgRenderStage() :
+ iExtendedBitmapError(KErrNone),
+ iCache(_FOFF(TCachedConversion,iLink)),
+ iCacheIterator(iCache),
+ iCacheFree(MAX_NVG_CACHE_SIZE)
+ {
+ }
+
+/** Called by CNvgRenderStageFactory::CreateRenderStageL() and
+CNvgRenderStageFactory::CreateFinalRenderStageL() when a new render stage
+called "nvgbitmap" is to be created. The only parameter used by this render stage
+is aNextStage, the rest are commented out to prevent warnings.
+@see MWsRenderStageFactory::CreateRenderStageL()
+@see MWsRenderStageFactory::CreateFinalRenderStageL()
+ */
+CNvgRenderStage* CNvgRenderStage::NewL(MWsGraphicDrawerEnvironment* /*aEnv*/, MWsScreen* /*aScreen*/, MWsScreenRedraw* /*aScreenRedraw*/, CWsRenderStage* aNextStage)
+ {
+ CNvgRenderStage* stage = new(ELeave) CNvgRenderStage();
+ CleanupStack::PushL(stage);
+ stage->ConstructL(aNextStage);
+ CleanupStack::Pop(stage);
+ return stage;
+ }
+
+void CNvgRenderStage::ConstructL(CWsRenderStage* aNextStage)
+ {
+ iBrushPattern = new(ELeave) CFbsBitmap;
+ iInternalBrushPattern = new(ELeave) CFbsBitmap;
+ iGraphicsInterface = new(ELeave) CVGIGraphicsInterface;
+ iNvgEngine = CNvgEngine::NewL();
+ iNvgEngine->SetVGImageBinder(iGraphicsInterface);
+
+ BaseConstructL();
+ SetNext(aNextStage);
+ }
+
+CNvgRenderStage::~CNvgRenderStage()
+ {
+ iEmptyRegion.Close();
+ delete iBrushPattern;
+ delete iInternalBrushPattern;
+ delete iNvgEngine;
+ delete iGraphicsInterface;
+
+ iCacheIterator.SetToFirst();
+ TCachedConversion* cached = iCacheIterator++;
+ while (cached != NULL)
+ {
+ delete cached;
+ cached = iCacheIterator++;
+ }
+ }
+
+/** The only interface returned by this render stage is MWsGraphicsContext.
+All other interface requests are passed to the base render stage class for resolving.
+
+@see CWsRenderStage::ResolveObjectInterface()
+
+@param aTypeId The type id of the interface to be retreived, must be one of the
+TSurfaceConfiguration interface extension IDs.
+
+@return Returns a pointer to an object that has the requested interface if found,
+otherwise returns NULL.
+ */
+TAny* CNvgRenderStage::ResolveObjectInterface(TUint aTypeId)
+ {
+ switch (aTypeId)
+ {
+ case MWsGraphicsContext::EWsObjectInterfaceId:
+ return static_cast<MWsGraphicsContext*>(this);
+
+ default:
+ return CWsRenderStage::ResolveObjectInterface(aTypeId);
+ }
+ }
+
+/** Call Begin() for this render stage and for the next one as well. It is assumed
+that this renderstage is chained in front of a renderstage that can draw to a
+CGraphicsContext as this renderstage uses MWsGraphicsContext interface from the
+next stage to draw to. A pointer to the MWsGraphicsContext interface is saved here
+and is used for all subsequent MWsGraphicsContext operations called on this
+render stage.
+
+This render stage draws all extended bitmaps of type 0x39b9273e
+and passes all other drawing operations directly to the next render stage through
+its MWsGraphicsContext interface.
+
+@see CWsRenderStage::Begin()
+
+@param aRegion The dirty region for which drawing operations are about to be issued.
+
+@post An error of KErrNotFound is set for this render stage if the MWsGraphicsContext
+interface of the next render stage cannot be obtained. This render stage relies on
+the existence of a subsequent stage with a valid MWsGraphicsContext interface to send
+its draw operations to so will not be able to draw anything if no MWsGraphicsContext
+is returned by the next render stage. The current error for this render stage can be
+retreived by calling GetError().
+ */
+void CNvgRenderStage::Begin(const TRegion* aRegion)
+ {
+ CWsRenderStage* nextStage = Next();
+ if (nextStage)
+ {
+ nextStage->Begin(aRegion);
+
+ // Use the graphics context from the next render stage to draw to
+ iGc = static_cast<MWsGraphicsContext*>(nextStage->ResolveObjectInterface(MWsGraphicsContext::EWsObjectInterfaceId));
+ if (iGc == NULL)
+ {
+ iExtendedBitmapError = KErrNotFound;
+ }
+ }
+ }
+
+/** Signals that the currect batch of drawing operations is complete. This
+implementation of End() just calls End() for the next render stage in the chain.
+
+@see CWsRenderStage::End()
+
+@param aCompositorReady Will be completed when the render stage is ready to
+receive the next batch of drawing operations.
+ */
+void CNvgRenderStage::End(TRequestStatus* aCompositorReady)
+ {
+ if (Next())
+ {
+ Next()->End(aCompositorReady);
+ }
+ }
+
+/** If the passed bitmap is an extended bitmap of type 0x39b9273e, draw it to the stored
+graphics context of the next render stage using DrawExtendedBitmap(), if the passed bitmap
+is not an extended bitmap just pass it on to the next render stage directly.
+
+@see CFbsBitGc::BitBlt(const TPoint&, const CFbsBitmap&)
+ */
+void CNvgRenderStage::BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ iGc->BitBlt(aDestPos, *sourceBitmap);
+ }
+ }
+
+/** If the passed bitmap is an extended bitmap of type 0x39b9273e, draw it to the
+stored graphics context of the next render stage using DrawExtendedBitmap(), if the
+passed bitmap is not an extended bitmap just pass it on to the next render stage directly.
+
+@see CFbsBitGc::BitBlt(const TPoint&, const CFbsBitmap&, const TRect&)
+ */
+void CNvgRenderStage::BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ iGc->BitBlt(aDestPos, *sourceBitmap, aSourceRect);
+ }
+ }
+
+/** If either of the passed bitmaps is an extended bitmap of type 0x39b9273e convert
+to a normal bitmap before passing to the next render stage, otherwise
+just pass to the next render stage directly.
+
+@see CFbsBitGc::BitBltMasked(const TPoint& aDestPos, const CFbsBitmap&, const TRect&, const CFbsBitmap&, TBool)
+ */
+void CNvgRenderStage::BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+ CFbsBitmap* maskBitmap = const_cast<CFbsBitmap*>(&aMaskBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ if (aMaskBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ maskBitmap = GetConvertedBitmap(aMaskBitmap);
+ }
+
+ iGc->BitBltMasked(aDestPos, *sourceBitmap, aSourceRect, *maskBitmap, aInvertMask);
+ }
+ }
+
+/** If either of the passed bitmaps is an extended bitmap of type 0x39b9273e
+convert to a normal bitmap before passing to the next render stage, otherwise
+just pass to the next render stage directly.
+
+@see CFbsBitGc::BitBltMasked(const TPoint& aDestPos, const CFbsBitmap&, const TRect&, const CFbsBitmap&, TPoint)
+ */
+void CNvgRenderStage::BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, const TPoint& aMaskPos)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+ CFbsBitmap* maskBitmap = const_cast<CFbsBitmap*>(&aMaskBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ if (aMaskBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ maskBitmap = GetConvertedBitmap(aMaskBitmap);
+ }
+
+ iGc->BitBltMasked(aDestPos, *sourceBitmap, aSourceRect, *maskBitmap, aMaskPos);
+ }
+ }
+
+/** @see CFbsBitGc::ResetClippingRegion()
+ */
+void CNvgRenderStage::ResetClippingRegion()
+ {
+ if (iGc)
+ {
+ iGc->ResetClippingRegion();
+ }
+ }
+
+/** @see CFbsBitGc::Clear()
+ */
+void CNvgRenderStage::Clear()
+ {
+ if (iGc)
+ {
+ iGc->Clear();
+ }
+ }
+
+/** @see CFbsBitGc::Clear(const TRect&)
+ */
+void CNvgRenderStage::Clear(const TRect& aRect)
+ {
+ if (iGc)
+ {
+ iGc->Clear(aRect);
+ }
+ }
+
+/** @see CFbsBitGc::ResetBrushPattern()
+ */
+void CNvgRenderStage::ResetBrushPattern()
+ {
+ if (iGc)
+ {
+ iGc->ResetBrushPattern();
+ }
+ }
+
+/** @see CFbsBitGc::ResetFont()
+ */
+void CNvgRenderStage::ResetFont()
+ {
+ if (iGc)
+ {
+ iGc->ResetFont();
+ }
+ }
+
+/** @see CFbsBitGc::DrawArc()
+ */
+void CNvgRenderStage::DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd)
+ {
+ if (iGc)
+ {
+ iGc->DrawArc(aRect, aStart, aEnd);
+ }
+ }
+
+/** @see CFbsBitGc::DrawPie()
+ */
+void CNvgRenderStage::DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd)
+ {
+ if (iGc)
+ {
+ iGc->DrawPie(aRect, aStart, aEnd);
+ }
+ }
+
+/** If the passed bitmap is an extended bitmap of type 0x39b9273e, draw it to the
+stored graphics context of the next render stage using DrawExtendedBitmap(), if the
+passed bitmap is not an extended bitmap just pass it on to the next render stage directly.
+
+@see CFbsBitGc::DrawBitmap(const TRect&, const CFbsBitmap&)
+ */
+void CNvgRenderStage::DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ iGc->DrawBitmap(aDestRect, *sourceBitmap);
+ }
+ }
+
+/** If the passed bitmap is an extended bitmap of type 0x39b9273e, draw it to the
+stored graphics context of the next render stage using DrawExtendedBitmap(), if the
+passed bitmap is not an extended bitmap just pass it on to the next render stage directly.
+
+@see CFbsBitGc::DrawBitmap(const TRect&, const CFbsBitmap&, const TRect&)
+ */
+void CNvgRenderStage::DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+
+ iGc->DrawBitmap(aDestRect, *sourceBitmap, aSourceRect);
+ }
+ }
+
+/** If the passed bitmap or mask bitmap is an extended bitmap of type 0x39b9273e
+convert it to a normal bitmap before calling DrawBitmapMasked(), normal bitmaps
+are passed straight through to the next render stage without conversion.
+
+@see CFbsBitGc::DrawBitmapMasked(const TRect&, const CFbsBitmap&, const TRect&, const CFbsBitmap&, TBool)
+ */
+void CNvgRenderStage::DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap,const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask)
+ {
+ if (iGc)
+ {
+ CFbsBitmap* sourceBitmap = const_cast<CFbsBitmap*>(&aSourceBitmap);
+ CFbsBitmap* maskBitmap = const_cast<CFbsBitmap*>(&aMaskBitmap);
+
+ if (aSourceBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ sourceBitmap = GetConvertedBitmap(aSourceBitmap);
+ }
+ if (aMaskBitmap.ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ maskBitmap = GetConvertedBitmap(aMaskBitmap);
+ }
+
+ iGc->DrawBitmapMasked(aDestRect, *sourceBitmap, aSourceRect, *maskBitmap, aInvertMask);
+ }
+ }
+
+/** @see CFbsBitGc::DrawRoundRect(const TRect&, const TSize&)
+ */
+void CNvgRenderStage::DrawRoundRect(const TRect& aRect, const TSize& aEllipse)
+ {
+ if (iGc)
+ {
+ iGc->DrawRoundRect(aRect, aEllipse);
+ }
+ }
+
+/** @see CFbsBitGc::DrawPolyLine(const TArray<TPoint>&)
+ */
+void CNvgRenderStage::DrawPolyLine(const TArray<TPoint>& aPointList)
+ {
+ if (iGc)
+ {
+ iGc->DrawPolyLine(aPointList);
+ }
+ }
+
+/** @see CFbsBitGc::DrawPolyLineNoEndPoint(const TArray<TPoint>&)
+ */
+void CNvgRenderStage::DrawPolyLineNoEndPoint(const TArray<TPoint>& aPointList)
+ {
+ if (iGc)
+ {
+ iGc->DrawPolyLineNoEndPoint(aPointList);
+ }
+ }
+
+/** @see CFbsBitGc::DrawPolygon(const TArray<TPoint>&, TFillRule)
+ */
+void CNvgRenderStage::DrawPolygon(const TArray<TPoint>& aPointList, TFillRule aFillRule)
+ {
+ if (iGc)
+ {
+ iGc->DrawPolygon(aPointList, aFillRule);
+ }
+ }
+
+/** @see CFbsBitGc::DrawEllipse(const TRect&)
+ */
+void CNvgRenderStage::DrawEllipse(const TRect& aRect)
+ {
+ if (iGc)
+ {
+ iGc->DrawEllipse(aRect);
+ }
+ }
+
+/** @see CFbsBitGc::DrawLine(const TPoint&, const TPoint&)
+ */
+void CNvgRenderStage::DrawLine(const TPoint& aStart, const TPoint& aEnd)
+ {
+ if (iGc)
+ {
+ iGc->DrawLine(aStart, aEnd);
+ }
+ }
+
+/** @see CFbsBitGc::DrawLineTo(const TPoint&)
+ */
+void CNvgRenderStage::DrawLineTo(const TPoint& aPoint)
+ {
+ if (iGc)
+ {
+ iGc->DrawLineTo(aPoint);
+ }
+ }
+
+/** @see CFbsBitGc::DrawLineBy(const TPoint&)
+ */
+void CNvgRenderStage::DrawLineBy(const TPoint& aVector)
+ {
+ if (iGc)
+ {
+ iGc->DrawLineBy(aVector);
+ }
+ }
+
+/** @see CFbsBitGc::DrawRect(const TRect&)
+ */
+void CNvgRenderStage::DrawRect(const TRect& aRect)
+ {
+ if (iGc)
+ {
+ iGc->DrawRect(aRect);
+ }
+ }
+
+/** @see CFbsBitGc::DrawText(const TDesC& aText, const TTextParameters*)
+ */
+void CNvgRenderStage::DrawText(const TDesC& aText, const TTextParameters* aParam)
+ {
+ if (iGc)
+ {
+ iGc->DrawText(aText, aParam);
+ }
+ }
+
+/** @see CFbsBitGc::DrawText(const TDesC& aText, const TTextParameters*, const TPoint&)
+ */
+void CNvgRenderStage::DrawText(const TDesC& aText, const TTextParameters* aParam, const TPoint& aPosition)
+ {
+ if (iGc)
+ {
+ iGc->DrawText(aText, aParam, aPosition);
+ }
+ }
+
+/** @see CFbsBitGc::DrawText(const TDesC& aText, const TTextParameters*, const TRect&)
+ */
+void CNvgRenderStage::DrawText(const TDesC& aText, const TTextParameters* aParam, const TRect& aClipRect)
+ {
+ if (iGc)
+ {
+ iGc->DrawText(aText, aParam, aClipRect);
+ }
+ }
+
+/** @see CFbsBitGc::DrawText(const TDesC& aText, const TTextParameters*, const TRect&, TInt, TTextAlign, TInt)
+ */
+void CNvgRenderStage::DrawText(const TDesC& aText, const TTextParameters* aParam, const TRect& aClipFillRect, TInt aBaselineOffset, TTextAlign aHrz, TInt aMargin)
+ {
+ if (iGc)
+ {
+ iGc->DrawText(aText, aParam, aClipFillRect, aBaselineOffset, aHrz, aMargin);
+ }
+ }
+
+/** @see CFbsBitGc::DrawTextVertical(const TDesC&, const TTextParameters*, TBool)
+ */
+void CNvgRenderStage::DrawTextVertical(const TDesC& aText, const TTextParameters* aParam, TBool aUp)
+ {
+ if (iGc)
+ {
+ iGc->DrawTextVertical(aText, aParam, aUp);
+ }
+ }
+
+/** @see CFbsBitGc::DrawTextVertical(const TDesC&, const TTextParameters*, const TPoint&, TBool)
+ */
+void CNvgRenderStage::DrawTextVertical(const TDesC& aText, const TTextParameters* aParam, const TPoint& aPosition, TBool aUp)
+ {
+ if (iGc)
+ {
+ iGc->DrawTextVertical(aText, aParam, aPosition, aUp);
+ }
+ }
+
+/** @see CFbsBitGc::DrawTextVertical(const TDesC&, const TTextParameters*, const TRect&, TBool)
+ */
+void CNvgRenderStage::DrawTextVertical(const TDesC& aText, const TTextParameters* aParam, const TRect& aClipRect, TBool aUp)
+ {
+ if (iGc)
+ {
+ iGc->DrawTextVertical(aText, aParam, aClipRect, aUp);
+ }
+ }
+
+/** @see CFbsBitGc::DrawTextVertical(const TDesC&, const TTextParameters*, const TRect&, TInt aBaselineOffset, TBool, TTextAlign, TInt)
+ */
+void CNvgRenderStage::DrawTextVertical(const TDesC& aText, const TTextParameters* aParam, const TRect& aClipRect, TInt aBaselineOffset, TBool aUp, TTextAlign aVert, TInt aMargin)
+ {
+ if (iGc)
+ {
+ iGc->DrawTextVertical(aText, aParam, aClipRect, aBaselineOffset, aUp, aVert, aMargin);
+ }
+ }
+
+/** @see CFbsBitGc::DrawTextVertical(const TDesC&, const TTextParameters*, const TRect&, TInt, TInt, TBool, TTextAlign, TInt)
+ */
+void CNvgRenderStage::DrawTextVertical(const TDesC& aText, const TTextParameters* aParam, const TRect& aClipRect, TInt aBaselineOffset, TInt aTextWidth, TBool aUp, TTextAlign aVert, TInt aMargin)
+ {
+ if (iGc)
+ {
+ iGc->DrawTextVertical(aText, aParam, aClipRect, aBaselineOffset, aTextWidth, aUp, aVert, aMargin);
+ }
+ }
+
+/** @see CFbsBitGc::MoveTo(const TPoint&)
+ */
+void CNvgRenderStage::MoveTo(const TPoint& aPoint)
+ {
+ if (iGc)
+ {
+ iGc->MoveTo(aPoint);
+ }
+ }
+
+/** @see CFbsBitGc::MoveBy(const TPoint&)
+ */
+void CNvgRenderStage::MoveBy(const TPoint& aVector)
+ {
+ if (iGc)
+ {
+ iGc->MoveBy(aVector);
+ }
+ }
+
+/** @see CFbsBitGc::Plot(const TPoint&)
+ */
+void CNvgRenderStage::Plot(const TPoint& aPoint)
+ {
+ if (iGc)
+ {
+ iGc->Plot(aPoint);
+ }
+ }
+
+/** @see CFbsBitGc::Reset()
+ */
+void CNvgRenderStage::Reset()
+ {
+ iExtendedBitmapError = KErrNone;
+ iOrigin.SetXY(0,0);
+ iBrushStyle = MWsGraphicsContext::ENullBrush;
+ if (iGc)
+ {
+ iGc->Reset();
+ }
+ }
+
+/** @see CFbsBitGc::SetBrushColor(const TRgb&)
+ */
+void CNvgRenderStage::SetBrushColor(const TRgb& aColor)
+ {
+ if (iGc)
+ {
+ iGc->SetBrushColor(aColor);
+ }
+ }
+
+/** @see CFbsBitGc::SetBrushOrigin(const TPoint&)
+ */
+void CNvgRenderStage::SetBrushOrigin(const TPoint& aOrigin)
+ {
+ if (iGc)
+ {
+ iGc->SetBrushOrigin(aOrigin);
+ }
+ }
+
+/** @see CFbsBitGc::SetBrushStyle(TBrushStyle)
+ */
+void CNvgRenderStage::SetBrushStyle(TBrushStyle aBrushStyle)
+ {
+ if (iGc)
+ {
+ iGc->SetBrushStyle(aBrushStyle);
+ iBrushStyle = aBrushStyle;
+ }
+ }
+
+/** @see CFbsBitGc::SetClippingRegion(const TRegion&)
+ */
+void CNvgRenderStage::SetClippingRegion(const TRegion& aRegion)
+ {
+ if (iGc)
+ {
+ iGc->SetClippingRegion(aRegion);
+ }
+ }
+
+/** @see CFbsBitGc::SetDrawMode(TDrawMode)
+ */
+void CNvgRenderStage::SetDrawMode(TDrawMode aDrawMode)
+ {
+ if (iGc)
+ {
+ iGc->SetDrawMode(aDrawMode);
+ }
+ }
+
+/** @see CFbsBitGc::SetOrigin(const TPoint&)
+ */
+void CNvgRenderStage::SetOrigin(const TPoint& aPoint)
+ {
+ if (iGc)
+ {
+ iGc->SetOrigin(aPoint);
+ iOrigin = aPoint;
+ }
+ }
+
+/** @see CFbsBitGc::SetPenColor(const TRgb&)
+ */
+void CNvgRenderStage::SetPenColor(const TRgb& aColor)
+ {
+ if (iGc)
+ {
+ iGc->SetPenColor(aColor);
+ }
+ }
+
+/** @see CFbsBitGc::SetPenStyle(TPenStyle)
+ */
+void CNvgRenderStage::SetPenStyle(TPenStyle aPenStyle)
+ {
+ if (iGc)
+ {
+ iGc->SetPenStyle(aPenStyle);
+ }
+ }
+
+/** @see CFbsBitGc::SetPenSize(const TSize&)
+ */
+void CNvgRenderStage::SetPenSize(const TSize& aSize)
+ {
+ if (iGc)
+ {
+ iGc->SetPenSize(aSize);
+ }
+ }
+
+/** @see CFbsBitGc::SetTextShadowColor(const TRgb&)
+ */
+void CNvgRenderStage::SetTextShadowColor(const TRgb& aColor)
+ {
+ if (iGc)
+ {
+ iGc->SetTextShadowColor(aColor);
+ }
+ }
+
+/** @see CFbsBitGc::SetCharJustification(TInt, TInt)
+ */
+void CNvgRenderStage::SetCharJustification(TInt aExcessWidth, TInt aNumChars)
+ {
+ if (iGc)
+ {
+ iGc->SetCharJustification(aExcessWidth, aNumChars);
+ }
+ }
+
+/** @see CFbsBitGc::SetWordJustification(TInt, TInt)
+ */
+void CNvgRenderStage::SetWordJustification(TInt aExcessWidth, TInt aNumGaps)
+ {
+ if (iGc)
+ {
+ iGc->SetWordJustification(aExcessWidth, aNumGaps);
+ }
+ }
+
+/** @see CFbsBitGc::SetUnderlineStyle(TFontUnderline)
+ */
+void CNvgRenderStage::SetUnderlineStyle(TFontUnderline aUnderlineStyle)
+ {
+ if (iGc)
+ {
+ iGc->SetUnderlineStyle(aUnderlineStyle);
+ }
+ }
+
+/** @see CFbsBitGc::SetStrikethroughStyle(TFontStrikethrough)
+ */
+void CNvgRenderStage::SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle)
+ {
+ if (iGc)
+ {
+ iGc->SetStrikethroughStyle(aStrikethroughStyle);
+ }
+ }
+
+/** If the passed bitmap is an extended bitmap of type 0x39b9273e
+convert the extended bitmap to a normal bitmap and set the converted bitmap
+as the current brush pattern. If the passed bitmap is a normal
+bitmap just pass it on to the next render stage.
+
+@see SetBrushPattern(TInt)
+@see CFbsBitGc::SetBrushPattern(const CFbsBitmap&)
+ */
+void CNvgRenderStage::SetBrushPattern(const CFbsBitmap& aBitmap)
+ {
+ SetBrushPattern(aBitmap.Handle());
+ }
+
+/** If the passed bitmap handle refers to an extended bitmap of type 0x39b9273e
+convert the extended bitmap to a normal bitmap and set the converted bitmap
+as the current brush pattern. If the passed bitmap handle refers to a normal
+bitmap just pass it on to the next render stage.
+
+@see SetBrushPattern(const CFbsBitmap&)
+@see CFbsBitGc::SetBrushPattern(TInt)
+ */
+void CNvgRenderStage::SetBrushPattern(TInt aFbsBitmapHandle)
+ {
+ if (iGc)
+ {
+ iBrushPattern->Duplicate(aFbsBitmapHandle);
+ if (iBrushPattern->ExtendedBitmapType() == KUidNvgExtendedBitmap)
+ {
+ iInternalBrushPattern = GetConvertedBitmap(*iBrushPattern);
+ iGc->SetBrushPattern(*iInternalBrushPattern);
+ }
+ else
+ {
+ iGc->SetBrushPattern(aFbsBitmapHandle);
+ }
+ }
+ }
+
+/** @see CFbsBitGc::SetFont(const CFont*)
+ */
+void CNvgRenderStage::SetFont(const CFont* aFont)
+ {
+ if (iGc)
+ {
+ iGc->SetFont(aFont);
+ }
+ }
+
+/** @see CFbsBitGc::CopyRect(const TPoint&, const TRect&)
+ */
+void CNvgRenderStage::CopyRect(const TPoint& aOffset, const TRect& aRect)
+ {
+ if (iGc)
+ {
+ iGc->CopyRect(aOffset, aRect);
+ }
+ }
+
+/** @see CFbsBitGc::UpdateJustification(const TDesC&, const TTextParameters*)
+ */
+void CNvgRenderStage::UpdateJustification(const TDesC& aText, const TTextParameters* aParam)
+ {
+ if (iGc)
+ {
+ iGc->UpdateJustification(aText, aParam);
+ }
+ }
+
+/** @see CFbsBitGc::UpdateJustificationVertical(const TDesC&, const TTextParameters*, TBool)
+ */
+void CNvgRenderStage::UpdateJustificationVertical(const TDesC& aText, const TTextParameters* aParam, TBool aUp)
+ {
+ if (iGc)
+ {
+ iGc->UpdateJustificationVertical(aText, aParam, aUp);
+ }
+ }
+
+/** @see CFbsBitGc::SetFontNoDuplicate(const CFont*)
+ */
+void CNvgRenderStage::SetFontNoDuplicate(const CFont* aFont)
+ {
+ if (iGc)
+ {
+ iGc->SetFontNoDuplicate(aFont);
+ }
+ }
+
+/** @see CFbsBitGc::HasBrushPattern()
+ */
+TBool CNvgRenderStage::HasBrushPattern() const
+ {
+ if (iGc)
+ {
+ return iGc->HasBrushPattern();
+ }
+ else
+ {
+ return EFalse;
+ }
+ }
+
+/** @see CFbsBitGc::HasFont()
+ */
+TBool CNvgRenderStage::HasFont() const
+ {
+ if (iGc)
+ {
+ return iGc->HasFont();
+ }
+ else
+ {
+ return EFalse;
+ }
+ }
+
+/** @see CFbsBitGc::BrushColor()
+ */
+TRgb CNvgRenderStage::BrushColor() const
+ {
+ if (iGc)
+ {
+ return iGc->BrushColor();
+ }
+ else
+ {
+ return KRgbWhite;
+ }
+ }
+
+/** @see CFbsBitGc::PenColor()
+ */
+TRgb CNvgRenderStage::PenColor() const
+ {
+ if (iGc)
+ {
+ return iGc->PenColor();
+ }
+ else
+ {
+ return KRgbBlack;
+ }
+ }
+
+/** @see MWsGraphicsContext::TextShadowColor()
+ */
+TRgb CNvgRenderStage::TextShadowColor() const
+ {
+ if (iGc)
+ {
+ return iGc->TextShadowColor();
+ }
+ else
+ {
+ return KRgbGray;
+ }
+ }
+
+/** If an error has been set by this render stage return that error,
+otherwise return the error from the graphics context of the next
+render stage.
+
+@see MWsGraphicsContext::GetError()
+ */
+TInt CNvgRenderStage::GetError()
+ {
+ if (iExtendedBitmapError != KErrNone)
+ {
+ return iExtendedBitmapError;
+ }
+ if (iGc)
+ {
+ return iGc->GetError();
+ }
+ return KErrNone;
+ }
+
+/** @see MWsGraphicsContext::Origin()
+ */
+TPoint CNvgRenderStage::Origin() const
+ {
+ if (iGc)
+ {
+ return iGc->Origin();
+ }
+ else
+ {
+ return TPoint(0,0);
+ }
+ }
+
+/** @see MWsGraphicsContext::ClippingRegion()
+ */
+const TRegion& CNvgRenderStage::ClippingRegion()
+ {
+ if (iGc)
+ {
+ return iGc->ClippingRegion();
+ }
+ else
+ {
+ return iEmptyRegion;
+ }
+ }
+
+/** @see MWsGraphicsContext::Push()
+ */
+TInt CNvgRenderStage::Push()
+ {
+ if (iGc)
+ {
+ return iGc->Push();
+ }
+ else
+ {
+ return KErrGeneral;
+ }
+ }
+
+/** @see MWsGraphicsContext::Pop()
+ */
+void CNvgRenderStage::Pop()
+ {
+ if (iGc)
+ {
+ iGc->Pop();
+ }
+ }
+
+
+/** Helper method that draws an NVG extended bitmap into a normal bitmap.
+
+@param aExtendedBitmapSrc The extended bitmap to draw
+
+@pre aExtendedBitmapSrc must be an extended bitmap of extended bitmap type 0x39b9273e
+ */
+
+CFbsBitmap* CNvgRenderStage::GetConvertedBitmap(const CFbsBitmap& aExtendedBitmapSrc)
+ {
+ aExtendedBitmapSrc.BeginDataAccess();
+ const TUint8* bmpData = (const TUint8*)aExtendedBitmapSrc.DataAddress();
+
+ TPtr8 IconHeaderPtr((TUint8*)bmpData, KIconHeaderLength, KIconHeaderLength);
+ TAknIconHeader iconheader(IconHeaderPtr);
+
+ TUint32 bitmapid = iconheader.GetBitmapId();
+ TUint32 handle = aExtendedBitmapSrc.Handle();
+ aExtendedBitmapSrc.EndDataAccess();
+ CFbsBitmap* error = const_cast<CFbsBitmap*>(&aExtendedBitmapSrc); // not renderable, but better than panic!
+
+ // look to see if we have this in the cache
+ iCacheIterator.SetToFirst();
+ TCachedConversion* cached = iCacheIterator++;
+ while (cached != NULL)
+ {
+ if (cached->iBitmapID == bitmapid && cached->iDiscriminator == handle)
+ {
+ // Cache hit
+#ifdef DEBUG_NVG_RENDERSTAGE
+ RDebug::Printf("NVG Render cache hit for id %08x, handle %d\n", bitmapid, handle);
+#endif
+ cached->Deque();
+ iCache.AddFirst(*cached); // move to front of the list, to record use
+ return cached->iCachedResult;
+ }
+ cached = iCacheIterator++;
+ }
+
+ // missed in the cache, need to perform the conversion
+ TInt err = KErrNone;
+ if (iCacheFree > 0)
+ {
+ // just allocate a new entry, which will be added to the end
+ TRAP(err, cached = new(ELeave) TCachedConversion);
+ if (err != KErrNone)
+ {
+ return error;
+ }
+ TRAP(err, cached->iCachedResult = new(ELeave) CFbsBitmap);
+ if (err != KErrNone)
+ {
+ delete cached;
+ return error;
+ }
+ }
+ else
+ {
+ // Remove the least recently used item
+ cached = iCache.Last();
+ cached->Deque(); // remove from the cache
+ iCacheFree++;
+#ifdef DEBUG_NVG_RENDERSTAGE
+ RDebug::Printf("NVG Render cache removing id %08x, handle %d\n", cached->iBitmapID, cached->iDiscriminator);
+#endif
+ }
+
+ // cached is now available to hold the new result
+ cached->iBitmapID = bitmapid;
+ cached->iDiscriminator = handle;
+
+ CopyExtendedBitmapToNormalBitmap(aExtendedBitmapSrc, *cached->iCachedResult);
+ if (iExtendedBitmapError != KErrNone)
+ {
+ delete cached;
+ return error;
+ }
+
+ // Newly cached bitmap is valid
+ iCache.AddFirst(*cached);
+ iCacheFree--;
+#ifdef DEBUG_NVG_RENDERSTAGE
+ RDebug::Printf("NVG Render cache added id %08x, handle %d (%d free)\n", bitmapid, handle, iCacheFree);
+#endif
+ return cached->iCachedResult;
+ }
+
+/** Helper method that draws an NVG extended bitmap into a normal bitmap. The normal
+bitmap passed is resized before the extended bitmap is drawn into it.
+
+@param aExtendedBitmapSrc The extended bitmap to draw in to the normal bitmap aBitmapDest
+@param aBitmapDest The normal bitmap that the extended bitmap is to be drawn into
+
+@pre aExtendedBitmapSrc must be an extended bitmap of extended bitmap type 0x39b9273e
+@post aBitmapDest has been reset and resized and now contains a representation of the aExtendedBitmapSrc
+ */
+
+void CNvgRenderStage::CopyExtendedBitmapToNormalBitmap(const CFbsBitmap& aExtendedBitmapSrc, CFbsBitmap& aBitmapDst)
+ {
+ TSize size = aExtendedBitmapSrc.SizeInPixels();
+ TInt err = aBitmapDst.Create(size, aExtendedBitmapSrc.DisplayMode());
+ if (err != KErrNone)
+ {
+ iExtendedBitmapError = err;
+ return;
+ }
+
+ TRAP(err, iGraphicsInterface->InitializeL(size));
+ if (err != KErrNone)
+ {
+ iExtendedBitmapError = err;
+ return;
+ }
+
+ // Clear to White before doing anything else
+ VGfloat color[4] = { 1.0f, 1.0f, 1.0f, 0.0f };
+ vgSeti(VG_SCISSORING, VG_FALSE);
+ vgSetfv(VG_CLEAR_COLOR, 4, color);
+ vgClear(0, 0, size.iWidth, size.iHeight);
+
+ aExtendedBitmapSrc.BeginDataAccess();
+ const TUint8* bmpData = (const TUint8*)aExtendedBitmapSrc.DataAddress();
+
+ TPtr8 IconHeaderPtr((TUint8*)bmpData, KIconHeaderLength, KIconHeaderLength);
+ TAknIconHeader iconheader(IconHeaderPtr);
+
+#ifdef DEBUG_NVG_RENDERSTAGE
+ RDebug::Printf("ConvertExtendedBitmap: id=%08x size (%d x %d)\n", iconheader.GetBitmapId(), size.iWidth, size.iHeight);
+#endif
+
+ TInt dataSize = aExtendedBitmapSrc.DataSize();
+ // skip TNVGIconHeader structure - we only know about version 0
+ if (bmpData[2] == 0)
+ {
+ TInt headerlength = bmpData[3]; // should be KIconHeaderLength
+ bmpData += headerlength;
+ dataSize -= headerlength;
+ }
+ TPtrC8 nvgData(bmpData,dataSize);
+
+ TInt rotAngle = iconheader.GetRotation();
+ // setting the rotation angle
+ iNvgEngine->Rotate(-rotAngle, size.iWidth >> 1, size.iHeight >>1);
+
+ //setting preserve aspect ratio
+ TNvgAlignStatusType alignTypeValue = ENvgPreserveAspectRatio_XmidYmid;
+ TNvgMeetOrSliceType meetOrSliceTypeValue = ENvgMeet;
+
+ switch ( iconheader.GetScaleMode() )
+ {
+ case EAspectRatioPreserved: // fall through
+ {
+ // use default
+ break;
+ }
+ // Ensures NVG content fully covers the area of the icon whilst preserving aspect ratio.
+ case EAspectRatioPreservedSlice:
+ {
+ // alignTypeValue use default
+ meetOrSliceTypeValue = ENvgSlice;
+ break;
+ }
+ /* EAspectRatioPreservedAndUnusedSpaceRemoved is mapped to the same values as EAspectRatioNotPreserved
+ * because we already have a frame buffer with the dimensions that preserves the aspect ratio.
+ * This mapping ensures that NVG engine does not calculate aspect ratio twice and potentially resulting in precision loss.*/
+ case EAspectRatioPreservedAndUnusedSpaceRemoved:
+ case EAspectRatioNotPreserved:
+ {
+ alignTypeValue = ENvgPreserveAspectRatio_None;
+ // meetOrSliceTypeValue use default
+ break;
+ }
+ }
+ iNvgEngine->SetPreserveAspectRatio(alignTypeValue, meetOrSliceTypeValue);
+
+ TInt error = iNvgEngine->DrawNvg(nvgData, aExtendedBitmapSrc.SizeInPixels(), &aBitmapDst, NULL);
+ aExtendedBitmapSrc.EndDataAccess(ETrue);
+
+ TRAP(err, iGraphicsInterface->CopyBitmapL(&aBitmapDst, NULL));
+ if (err != KErrNone)
+ {
+ iExtendedBitmapError = err;
+ return;
+ }
+ }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/uigraphics/NVGRenderStage/src/nvgrenderstage.h Mon Aug 23 14:34:16 2010 +0100
@@ -0,0 +1,173 @@
+// Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef NVGRENDERSTAGE_H
+#define NVGRENDERSTAGE_H
+
+/**
+@file
+@test
+@internalComponent - Internal Symbian test code
+*/
+
+#include <graphics/wsrenderstage.h>
+#include <graphics/wsgraphicdrawer.h>
+#include <graphics/wsgraphicscontext.h>
+#include <nvg.h>
+#include "vgigraphicsinterface.h"
+
+/** Struct to form a simple LRU cache of conversion results
+ */
+class TCachedConversion
+ {
+public:
+ TCachedConversion();
+ ~TCachedConversion();
+ inline void Deque();
+
+public:
+ TDblQueLink iLink;
+ TUint32 iBitmapID;
+ TUint32 iDiscriminator;
+ CFbsBitmap* iCachedResult;
+ };
+
+void TCachedConversion::Deque() {iLink.Deque();}
+
+/** This is a render stage used for processing NVG Icon bitmaps in the absence of
+graphics acceleration hardware. The software implementation of OpenVG is used to
+render the NVG drawing commands onto a normal CFbsBitmap, and a simple LRU cache
+is used to keep the results for faster redrawing.
+
+This render stage implements the MWsGraphicsContext interface so that it can intercept
+any drawing commands that draw an extended bitmap, any commands that draw a normal
+bitmap are just passed through to the next renderstage (along with any commands that
+do not involve bitmaps at all).
+
+A CNvgRenderStage object is created by a CNvgRenderStageFactory.
+ */
+class CNvgRenderStage : public CWsRenderStage, public MWsGraphicsContext
+ {
+public:
+ static CNvgRenderStage* NewL(MWsGraphicDrawerEnvironment* aEnv, MWsScreen* aScreen, MWsScreenRedraw* aScreenRedraw, CWsRenderStage* aNextStage);
+ virtual ~CNvgRenderStage();
+
+public:
+ // Implementation of CWsRenderStage
+ TAny* ResolveObjectInterface(TUint aTypeId);
+ virtual void Begin(const TRegion* aRegion);
+ virtual void End(TRequestStatus* aCompositorReady);
+
+public:
+ // Implementation of MWsGraphicsContext
+ void BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap);
+ void BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect);
+ void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask);
+ void BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, const TPoint& aMaskPos);
+ void ResetClippingRegion();
+ void Clear();
+ void Clear(const TRect& aRect);
+ void ResetBrushPattern();
+ void ResetFont();
+ void DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
+ void DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd);
+ void DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap);
+ void DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect);
+ void DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap,const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask);
+ void DrawRoundRect(const TRect& aRect, const TSize& aEllipse);
+ void DrawPolyLine(const TArray<TPoint>& aPointList);
+ void DrawPolyLineNoEndPoint(const TArray<TPoint>& aPointList);
+ void DrawPolygon(const TArray<TPoint>& aPointList, TFillRule aFillRule=EAlternate);
+ void DrawEllipse(const TRect& aRect);
+ void DrawLine(const TPoint& aStart, const TPoint& aEnd);
+ void DrawLineTo(const TPoint& aPoint);
+ void DrawLineBy(const TPoint& aVector);
+ void DrawRect(const TRect& aRect);
+ void DrawText(const TDesC& aText,const TTextParameters* aParam);
+ void DrawText(const TDesC& aText,const TTextParameters* aParam,const TPoint& aPosition);
+ void DrawText(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect);
+ void DrawText(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipFillRect,TInt aBaselineOffset,TTextAlign aHrz=ELeft,TInt aMargin=0);
+ void DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,TBool aUp);
+ void DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TPoint& aPosition,TBool aUp);
+ void DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TBool aUp);
+ void DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TInt aBaselineOffset,TBool aUp,TTextAlign aVert=ELeft,TInt aMargin=0);
+ void DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TInt aBaselineOffset,TInt aTextWidth,TBool aUp,TTextAlign aVert=ELeft,TInt aMargin=0);
+ void MoveTo(const TPoint& aPoint);
+ void MoveBy(const TPoint& aVector);
+ void Plot(const TPoint& aPoint);
+ void Reset();
+ void SetBrushColor(const TRgb& aColor);
+ void SetBrushOrigin(const TPoint& aOrigin);
+ void SetBrushStyle(TBrushStyle aBrushStyle);
+ void SetClippingRegion(const TRegion& aRegion);
+ void SetDrawMode(TDrawMode aDrawMode);
+ void SetOrigin(const TPoint& aPoint = TPoint(0, 0));
+ void SetPenColor(const TRgb& aColor);
+ void SetPenStyle(TPenStyle aPenStyle);
+ void SetPenSize(const TSize& aSize);
+ void SetTextShadowColor(const TRgb& aColor);
+ void SetCharJustification(TInt aExcessWidth, TInt aNumChars);
+ void SetWordJustification(TInt aExcessWidth, TInt aNumGaps);
+ void SetUnderlineStyle(TFontUnderline aUnderlineStyle);
+ void SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle);
+ void SetBrushPattern(const CFbsBitmap& aBitmap);
+ void SetBrushPattern(TInt aFbsBitmapHandle);
+ void SetFont(const CFont* aFont);
+ void CopyRect(const TPoint& aOffset, const TRect& aRect);
+ void UpdateJustification(const TDesC& aText,const TTextParameters* aParam);
+ void UpdateJustificationVertical(const TDesC& aText,const TTextParameters* aParam,TBool aUp);
+ void SetFontNoDuplicate(const CFont* aFont);
+ TBool HasBrushPattern() const;
+ TBool HasFont() const;
+ TRgb BrushColor() const;
+ TRgb PenColor() const;
+ TRgb TextShadowColor() const;
+ TInt GetError();
+ TPoint Origin() const;
+ const TRegion& ClippingRegion();
+ TInt Push();
+ void Pop();
+
+private:
+ CNvgRenderStage();
+ void ConstructL(CWsRenderStage* aNextStage);
+
+private:
+ // Helper methods that support the implementation of MWsGraphicsContext
+ CFbsBitmap* GetConvertedBitmap(const CFbsBitmap& aSourceBitmap);
+ void CopyExtendedBitmapToNormalBitmap(const CFbsBitmap& aExtendedBitmapSrc, CFbsBitmap& aBitmapDst);
+
+private:
+ MWsGraphicsContext* iGc;
+ TInt iExtendedBitmapError;
+ TPoint iOrigin;
+ RRegion iEmptyRegion;
+ CFbsBitmap* iBrushPattern;
+ CFbsBitmap* iInternalBrushPattern;
+ MWsGraphicsContext::TBrushStyle iBrushStyle;
+ CVGIGraphicsInterface* iGraphicsInterface;
+ CNvgEngine* iNvgEngine;
+
+ // LRU Cache of rendered bitmaps
+#define MAX_NVG_CACHE_SIZE 128
+
+ TDblQue<TCachedConversion> iCache;
+ TDblQueIter<TCachedConversion> iCacheIterator;
+ TUint iCacheFree;
+ };
+
+// #define DEBUG_NVG_RENDERSTAGE
+
+#endif // NVGRENDERSTAGE_H