--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserver/test/tauto/directgdigcwrapper.cpp	Tue Aug 31 16:31:06 2010 +0300
@@ -0,0 +1,521 @@
+// Copyright (c) 2008-2009 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:
+//
+
+#include "directgdigcwrapper.h"
+#include "mwsgraphicscontexttodirectgdimappings.h"
+#include <s32mem.h>
+#include "stdpanic.h"
+#include <graphics/lookuptable.h>
+#include <graphics/directgdidriver.h>
+#include <graphics/directgdidrawablesource.h>
+
+void Panic(TStdPluginPanic aPanic)
+	{
+	_LIT(KStdPanicCategory, "WSERV-TEST-PLUGIN");
+	User::Panic(KStdPanicCategory, aPanic);
+	}
+
+CDirectGdiGcWrapper* CDirectGdiGcWrapper::NewL(RDirectGdiImageTarget& aTarget)
+	{
+	CDirectGdiGcWrapper* self = new(ELeave) CDirectGdiGcWrapper;
+	CleanupStack::PushL(self);
+	CDirectGdiDriver* driver = CDirectGdiDriver::Static();
+	User::LeaveIfNull(driver);
+	self->iContext = CDirectGdiContext::NewL(*driver);
+	TInt err = self->iContext->Activate(aTarget);
+	User::LeaveIfError(err);
+	self->iErrorCode = KErrNone;
+	self->iGcBuf = CBufSeg::NewL(512);
+	//MWsFader
+	//Default in BitGdi was 128 for the blackMap and 255 for the whiteMap
+	//SetFadingParameters shows how the fade color is computed
+	self->iFadeColor.SetInternal(0x80FFFFFF);
+	
+	self->iLut = PtrTo16BitNormalisationTable();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CDirectGdiGcWrapper::~CDirectGdiGcWrapper()
+	{
+	delete iContext;
+	delete iGcBuf;
+	iClippingRegion.Close();
+	}
+
+void CDirectGdiGcWrapper::BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap)
+	{
+	iContext->BitBlt(aDestPos, aSourceBitmap);
+	}
+
+void CDirectGdiGcWrapper::BitBlt(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect)
+	{
+	iContext->BitBlt(aDestPos, aSourceBitmap, aSourceRect);
+	}
+
+void CDirectGdiGcWrapper::BitBltMasked(const TPoint& aDestPos,	const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask)
+	{
+	iContext->BitBltMasked(aDestPos, aSourceBitmap, aSourceRect, aMaskBitmap, aInvertMask);
+	}
+
+void CDirectGdiGcWrapper::BitBltMasked(const TPoint& aDestPos, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, const TPoint& aMaskPos)
+	{
+	iContext->BitBltMasked(aDestPos, aSourceBitmap, aSourceRect, aMaskBitmap, aMaskPos);
+	}
+
+void CDirectGdiGcWrapper::ResetClippingRegion()
+	{
+	iContext->ResetClippingRegion();
+	}
+
+void CDirectGdiGcWrapper::Clear()
+	{
+	iContext->Clear();
+	}
+
+void CDirectGdiGcWrapper::Clear(const TRect& aRect)
+	{
+	iContext->Clear(aRect);
+	}
+
+void CDirectGdiGcWrapper::ResetBrushPattern()
+	{
+	iContext->ResetBrushPattern();
+	}
+
+void CDirectGdiGcWrapper::ResetFont()
+	{
+	iContext->ResetFont();
+	}
+
+void CDirectGdiGcWrapper::DrawArc(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd)
+	{
+	iContext->DrawArc(aRect, aStart, aEnd);
+	}
+
+void CDirectGdiGcWrapper::DrawPie(const TRect& aRect, const TPoint& aStart, const TPoint& aEnd)
+	{
+	iContext->DrawPie(aRect, aStart, aEnd);
+	}
+
+void CDirectGdiGcWrapper::DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap)
+	{
+	iContext->DrawBitmap(aDestRect, aSourceBitmap);
+	}
+
+void CDirectGdiGcWrapper::DrawBitmap(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect)
+	{
+	iContext->DrawBitmap(aDestRect,	aSourceBitmap, aSourceRect);
+	}
+
+void CDirectGdiGcWrapper::DrawBitmapMasked(const TRect& aDestRect, const CFbsBitmap& aSourceBitmap, const TRect& aSourceRect, const CFbsBitmap& aMaskBitmap, TBool aInvertMask)
+	{
+	iContext->DrawBitmapMasked(aDestRect, aSourceBitmap, aSourceRect, aMaskBitmap, aInvertMask);
+	}
+
+void CDirectGdiGcWrapper::DrawRoundRect(const TRect& aRect, const TSize& aEllipse)
+	{
+	iContext->DrawRoundRect(aRect, aEllipse);
+	}
+
+void CDirectGdiGcWrapper::DrawPolyLine(const TArray<TPoint>& aPointList)
+	{
+	iContext->DrawPolyLine(aPointList);
+	}
+
+void CDirectGdiGcWrapper::DrawPolyLineNoEndPoint(const TArray<TPoint>& aPointList)
+	{
+	iContext->DrawPolyLineNoEndPoint(aPointList);
+	}
+
+void CDirectGdiGcWrapper::DrawPolygon(const TArray<TPoint>& aPointList, TFillRule aFillRule)
+	{
+	iContext->DrawPolygon(aPointList, MWsGraphicsContextToDirectGdiMappings::Convert(aFillRule));
+	}
+
+void CDirectGdiGcWrapper::DrawEllipse(const TRect& aRect)
+	{
+	iContext->DrawEllipse(aRect);
+	}
+
+void CDirectGdiGcWrapper::DrawLine(const TPoint& aStart, const TPoint& aEnd)
+	{
+	iContext->DrawLine(aStart, aEnd);
+	}
+
+void CDirectGdiGcWrapper::DrawLineTo(const TPoint& aPoint)
+	{
+	iContext->DrawLineTo(aPoint);
+	}
+
+void CDirectGdiGcWrapper::DrawLineBy(const TPoint& aVector)
+	{
+	iContext->DrawLineBy(aVector);
+	}
+
+void CDirectGdiGcWrapper::DrawRect(const TRect& aRect)
+	{
+	iContext->DrawRect(aRect);
+	}
+
+void CDirectGdiGcWrapper::DrawText(const TDesC& aText,const TTextParameters* aParam)
+	{
+	iContext->DrawText(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam));
+	}
+
+void CDirectGdiGcWrapper::DrawText(const TDesC& aText,const TTextParameters* aParam,const TPoint& aPosition)
+	{
+	iContext->DrawText(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aPosition);
+	}
+
+void CDirectGdiGcWrapper::DrawText(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect)
+	{
+	iContext->DrawText(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aClipRect);
+	}
+
+void CDirectGdiGcWrapper::DrawText(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipFillRect,TInt aBaselineOffset, TTextAlign aHrz,TInt aMargin)
+	{
+	iContext->DrawText(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aClipFillRect, aBaselineOffset, MWsGraphicsContextToDirectGdiMappings::Convert(aHrz), aMargin);
+	}
+
+void CDirectGdiGcWrapper::DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,TBool aUp)
+	{
+	iContext->DrawTextVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aUp);
+	}
+
+void CDirectGdiGcWrapper::DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TPoint& aPosition,TBool aUp)
+	{
+	iContext->DrawTextVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aPosition, aUp);
+	}
+
+void CDirectGdiGcWrapper::DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TBool aUp)
+	{
+	iContext->DrawTextVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aClipRect, aUp);
+	}
+
+void CDirectGdiGcWrapper::DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TInt aBaselineOffset,TBool aUp,TTextAlign aVert,TInt aMargin)
+	{
+	iContext->DrawTextVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aClipRect, aBaselineOffset, aUp, MWsGraphicsContextToDirectGdiMappings::Convert(aVert), aMargin);
+	}
+
+void CDirectGdiGcWrapper::DrawTextVertical(const TDesC& aText,const TTextParameters* aParam,const TRect& aClipRect,TInt aBaselineOffset,TInt aTextWidth,TBool aUp,TTextAlign aVert,TInt aMargin)
+	{
+	iContext->DrawTextVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aClipRect, aBaselineOffset, aTextWidth, aUp, MWsGraphicsContextToDirectGdiMappings::Convert(aVert), aMargin);
+	}
+
+void CDirectGdiGcWrapper::MoveTo(const TPoint& aPoint)
+	{
+	iContext->MoveTo(aPoint);
+	}
+
+void CDirectGdiGcWrapper::MoveBy(const TPoint& aVector)
+	{
+	iContext->MoveBy(aVector);
+	}
+
+void CDirectGdiGcWrapper::Plot(const TPoint& aPoint)
+	{
+	iContext->Plot(aPoint);
+	}
+
+void CDirectGdiGcWrapper::Reset()
+	{
+	iContext->Reset();
+	}
+
+void CDirectGdiGcWrapper::SetBrushColor(const TRgb& aColor)
+	{
+	iContext->SetBrushColor(aColor);
+	}
+
+void CDirectGdiGcWrapper::SetBrushOrigin(const TPoint& aOrigin)
+	{
+	iContext->SetBrushOrigin(aOrigin);
+	}
+
+void CDirectGdiGcWrapper::SetBrushStyle(TBrushStyle aBrushStyle)
+	{
+	iContext->SetBrushStyle(MWsGraphicsContextToDirectGdiMappings::Convert(aBrushStyle));
+	}
+
+void CDirectGdiGcWrapper::SetClippingRegion(const TRegion& aRegion)
+	{
+	CDirectGdiDriver* driver = CDirectGdiDriver::Static();
+	driver->GetError(); //make sure that an error has been received 
+	iContext->SetClippingRegion(aRegion);
+	TInt err = driver->GetError();
+	SetError(err);
+	if(err == KErrNone)
+		{
+		iClippingRegion.Copy(aRegion);
+		}
+	}
+
+void CDirectGdiGcWrapper::SetDrawMode(TDrawMode aDrawMode)
+	{
+	iContext->SetDrawMode(MWsGraphicsContextToDirectGdiMappings::LossyConvert(aDrawMode));
+	}
+
+void CDirectGdiGcWrapper::SetOrigin(const TPoint& aPoint)
+	{
+	iContext->SetOrigin(aPoint);
+	iOrigin = aPoint;
+	}
+
+void CDirectGdiGcWrapper::SetPenColor(const TRgb& aColor)
+	{
+	iContext->SetPenColor(aColor);
+	}
+
+void CDirectGdiGcWrapper::SetPenStyle(TPenStyle aPenStyle)
+	{
+	iContext->SetPenStyle(MWsGraphicsContextToDirectGdiMappings::Convert(aPenStyle));
+	}
+
+void CDirectGdiGcWrapper::SetPenSize(const TSize& aSize)
+	{
+	iContext->SetPenSize(aSize);
+	}
+
+void CDirectGdiGcWrapper::SetTextShadowColor(const TRgb& aColor)
+	{
+	iContext->SetTextShadowColor(aColor);
+	}
+
+void CDirectGdiGcWrapper::SetCharJustification(TInt aExcessWidth, TInt aNumChars)
+	{
+	iContext->SetCharJustification(aExcessWidth, aNumChars);
+	}
+
+void CDirectGdiGcWrapper::SetWordJustification(TInt aExcessWidth, TInt aNumGaps)
+	{
+	iContext->SetWordJustification(aExcessWidth, aNumGaps);
+	}
+
+void CDirectGdiGcWrapper::SetUnderlineStyle(TFontUnderline aUnderlineStyle)
+	{
+	iContext->SetUnderlineStyle(MWsGraphicsContextToDirectGdiMappings::Convert(aUnderlineStyle));
+	}
+
+void CDirectGdiGcWrapper::SetStrikethroughStyle(TFontStrikethrough aStrikethroughStyle)
+	{
+	iContext->SetStrikethroughStyle(MWsGraphicsContextToDirectGdiMappings::Convert(aStrikethroughStyle));
+	}
+
+void CDirectGdiGcWrapper::SetBrushPattern(const CFbsBitmap& aBitmap)
+	{
+	iContext->SetBrushPattern(aBitmap);
+	}
+
+void CDirectGdiGcWrapper::SetBrushPattern(TInt aFbsBitmapHandle)
+	{
+	iContext->SetBrushPattern(aFbsBitmapHandle);
+	}
+
+void CDirectGdiGcWrapper::SetFont(const CFont* aFont)
+	{
+	iContext->SetFont(aFont);
+	}
+
+void CDirectGdiGcWrapper::CopyRect(const TPoint& aOffset, const TRect& aRect)
+	{
+	iContext->CopyRect(aOffset, aRect);
+	}
+
+void CDirectGdiGcWrapper::UpdateJustification(const TDesC& aText,const TTextParameters* aParam)
+	{
+	iContext->UpdateJustification(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam));
+	}
+
+void CDirectGdiGcWrapper::UpdateJustificationVertical(const TDesC& aText,const TTextParameters* aParam,TBool aUp)
+	{
+	iContext->UpdateJustificationVertical(aText, MWsGraphicsContextToDirectGdiMappings::Convert(aParam), aUp);
+	}
+
+void CDirectGdiGcWrapper::SetFontNoDuplicate(const CFont* aFont)
+	{
+	iContext->SetFontNoDuplicate(static_cast<const CDirectGdiFont*>(aFont));
+	}
+
+TBool CDirectGdiGcWrapper::HasBrushPattern() const
+	{
+	return iContext->HasBrushPattern();
+	}
+
+TBool CDirectGdiGcWrapper::HasFont() const
+	{
+	return iContext->HasFont();
+	}
+
+TRgb CDirectGdiGcWrapper::BrushColor() const
+	{
+	return iContext->BrushColor();
+	}
+
+TRgb CDirectGdiGcWrapper::PenColor() const
+	{
+	return iContext->PenColor();
+	}
+
+TRgb CDirectGdiGcWrapper::TextShadowColor() const
+	{
+	return iContext->TextShadowColor();
+	}
+
+TAny* CDirectGdiGcWrapper::ResolveObjectInterface(TUint /*aTypeId*/)
+	{
+	return NULL;
+	}
+
+/**
+Sets the error code. If the error code is already set to a value other
+than KErrNone, the error code will not be modified.
+
+@param  aErr The error code to set.
+
+@post 	The error code has been set.
+*/
+void CDirectGdiGcWrapper::SetError(TInt aError)
+	{
+	if (aError != KErrNone && iErrorCode == KErrNone)
+		{
+		iErrorCode = aError;
+		}
+	}
+
+/**
+Returns the first error code (set as the result of calling some CDirectGdiGcWrapper API), if any,
+since the last call to this function or, if it has not previously been called, since
+the CDirectGdiGcWrapper was constructed. Calling this function clears the error code.
+
+@post 	The error code has been reset after being read.
+
+@return The first error code, if any, since the last call to this function or, 
+		if it has not previously been called, since the CDirectGdiGcWrapper was constructed. 
+		KErrNone will indicate that no such error has occurred.
+*/
+TInt CDirectGdiGcWrapper::GetError()
+	{
+	TInt err = iErrorCode;
+	iErrorCode = KErrNone;
+	return err;
+	}
+
+TPoint CDirectGdiGcWrapper::Origin() const
+	{
+	return iOrigin;
+	}
+
+const TRegion& CDirectGdiGcWrapper::ClippingRegion()
+	{
+	return iClippingRegion;
+	}
+
+TInt CDirectGdiGcWrapper::Push()
+	{
+	// the buf format is len+data where data is written by the GC's ExternalizeL()
+	iGcBuf->Reset();
+	CBufBase& buf = *iGcBuf;
+	const TInt start = buf.Size();
+	RBufWriteStream out(buf,start);
+	TRAPD(err,out.WriteInt32L(0));
+	if(!err)
+		{
+		TRAP(err,iContext->ExternalizeL(out));
+		}
+	if(err) //rollback addition
+		{
+		buf.Delete(start,buf.Size()-start);
+		}
+	else //fixup len
+		{
+		TRAP_IGNORE(out.CommitL();) // can't see this failing
+		TPckgBuf<TInt32> pckg(buf.Size()-sizeof(TInt32)-start);
+		buf.Write(start,pckg);
+		}
+	return err;
+	}
+
+void CDirectGdiGcWrapper::Pop()
+	{
+	CBufBase& buf = *iGcBuf;
+	TInt ofs = 0;
+	FOREVER
+		{
+		TInt chunk = 0;
+		RBufReadStream in(buf,ofs);
+		TRAPD(err,chunk = in.ReadInt32L());
+		if(err)
+			{
+			STD_ASSERT_DEBUG(err != 0, EStdPanicPopGcSettings);
+			return;
+			}
+		if(ofs+sizeof(TInt32)+chunk >= buf.Size()) // the last chunk?
+			{
+			TRAP_IGNORE(iContext->InternalizeL(in));
+			buf.Delete(ofs,buf.Size()-ofs);
+			return;
+			}
+		ofs += chunk + sizeof(TInt32);
+		}
+	}
+
+//Default method of fading simply uses bitgdi to perform fading
+void CDirectGdiGcWrapper::FadeArea(const TRegion& aRegion)
+	{
+	if (!&aRegion || aRegion.CheckError())
+		return;
+
+	iContext->Reset();
+	iContext->SetClippingRegion(aRegion);
+	iContext->SetPenStyle(DirectGdi::ENullPen);
+	iContext->SetBrushStyle(DirectGdi::ESolidBrush);
+	iContext->SetBrushColor(iFadeColor);
+	iContext->DrawRect(aRegion.BoundingRect());
+	}
+	
+//Default method of fading expects two TUint8's describing the black/white map 
+//as possible fading parameters
+void CDirectGdiGcWrapper::SetFadingParameters(const TDesC8& aData)
+  	{
+	TPckgBuf<TFadingParams> buf;
+	buf.Copy(aData);
+	TFadingParams parameters = buf();
+
+	//Situations where blackMap > whiteMap are NOT supported
+	if (parameters.blackMap > parameters.whiteMap)
+		{
+		TUint8 oldMap = parameters.blackMap;
+		parameters.blackMap = parameters.whiteMap;
+		parameters.whiteMap = oldMap;
+		}
+	
+	//CFbsBitGc::FadeArea() does the following per color component:
+	//   dst = dst * (whiteMap - blackMap) + blackMap;
+
+	//To achieve the same effect using MWsGraphicsContext we draw a rectangle
+	//with specific intensity and alpha values:
+	//   dst = dst * (1 - alpha) + intensity * alpha;
+	//Thus:
+	//   alpha = 1 - whiteMap + blackMap;
+	//   intensity = blackMap / alpha;
+
+	// alpha = 1 - whiteMap + blackMap;
+	TInt alpha = 255 - parameters.whiteMap + parameters.blackMap;
+	// intensity = blackMap / alpha;
+	TInt i = (parameters.blackMap * iLut[alpha]) >> 8;
+
+	iFadeColor.SetInternal(i << 16 | i << 8 | i | alpha << 24);
+  	}