--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicsdeviceinterface/directgdiadaptation/swsrc/swdirectgdirect.cpp	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,416 @@
+// Copyright (c) 2007-2009 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 "directgdiadapter.h"
+#include "swdirectgdiengine.h"
+
+/** 
+@see MDirectGdiEngine::CopyRect()
+*/
+void CSwDirectGdiEngine::CopyRect(const TPoint& aOffset, const TRect& aRect)
+	{	
+	TRect deviceRect;
+	iDrawDevice->GetDrawRect(deviceRect);
+	const TPoint back(TPoint(0,0) - aOffset);
+	TRect rcpy(aRect);
+	rcpy.Move(iOrigin);
+	rcpy.Intersection(deviceRect);
+	((TRegion*)iDefaultRegionPtr)->Sort(aOffset);
+	
+	TRect targetRect(rcpy);
+	targetRect.Move(aOffset);
+	targetRect.BoundingRect(rcpy);
+	
+	TRect clipRect(0,0,0,0);
+	const TInt limit = iDefaultRegionPtr->Count();
+	for(TInt count = 0; count < limit; count++)
+		{
+		clipRect = (*iDefaultRegionPtr)[count];
+		
+		clipRect.Move(back);
+		if (!clipRect.Intersects(rcpy))
+			{
+			continue;
+			}
+		
+		clipRect.Intersection(rcpy);
+		DirectGdi::TDrawMode drawMode = iDrawMode;
+		iDrawMode = DirectGdi::EDrawModeWriteAlpha;
+		DoCopyRect(aOffset, clipRect);
+		iDrawMode = drawMode; // restore the previous draw mode
+		clipRect.Move(aOffset);
+		iDrawDevice->UpdateRegion(clipRect);
+		}
+	}
+
+/**
+@see CopyRect()
+@panic DGDIAdapter 1013, if aRect or aOffset are outside of the destination bounds (debug only).
+ */ 
+void CSwDirectGdiEngine::DoCopyRect(const TPoint& aOffset, const TRect& aRect)
+	{
+#ifdef _DEBUG
+	TRect deviceRect;
+	iDrawDevice->GetDrawRect(deviceRect);
+#endif
+	GRAPHICS_ASSERT_DEBUG(aRect.iTl.iX >= deviceRect.iTl.iX, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(aRect.iTl.iY >= deviceRect.iTl.iY, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(aRect.iBr.iX <= deviceRect.iBr.iX, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(aRect.iBr.iY <= deviceRect.iBr.iY, EDirectGdiPanicOutOfBounds);
+
+	TRect offsetRect(aRect);
+	offsetRect.Move(aOffset);
+
+	GRAPHICS_ASSERT_DEBUG(offsetRect.iTl.iX >= deviceRect.iTl.iX, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(offsetRect.iTl.iY >= deviceRect.iTl.iY, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(offsetRect.iBr.iX <= deviceRect.iBr.iX, EDirectGdiPanicOutOfBounds);
+	GRAPHICS_ASSERT_DEBUG(offsetRect.iBr.iY <= deviceRect.iBr.iY, EDirectGdiPanicOutOfBounds);
+
+	TInt y1 = aRect.iTl.iY;
+	TInt y2 = aRect.iBr.iY; 
+	TInt yinc = 1; // default y2>y1
+	if (aOffset.iY > 0)	// y1>y2
+		{
+		y1 = aRect.iBr.iY - 1;
+		y2 = aRect.iTl.iY - 1;
+		yinc = -1;
+		}
+
+	const TInt width = aRect.Width();
+	const TInt xoffset = aRect.iTl.iX + aOffset.iX;
+	const TDisplayMode dispMode = ScanLineBufferDisplayMode(iDrawDevice);
+	TUint32* scanLineBuffer = iDrawDevice->ScanLineBuffer();
+
+	for (TInt row = y1; row != y2; row += yinc)
+		{
+		iDrawDevice->ReadLine(aRect.iTl.iX, row, width, scanLineBuffer, dispMode);
+		iDrawDevice->WriteLine(xoffset, row + aOffset.iY, width, scanLineBuffer, GcDrawMode(iDrawMode));
+		}
+	}
+
+/** 
+@see MDirectGdiEngine::DrawRect()
+*/
+void CSwDirectGdiEngine::DrawRect(const TRect& aRect)
+	{
+	TRect rcpy(aRect);
+
+	iBrushBitmap.BeginDataAccess();
+	
+	if ((iPenSize.iWidth == 1) && (iPenSize.iHeight == 1) && iPenStyle != DirectGdi::ENullPen)
+		{
+		const TInt width = rcpy.Width();
+		const TInt height = rcpy.Height();
+		const TPoint currentLinePosition = iLinePosition;
+
+		if (iPenStyle != DirectGdi::ESolidPen)
+			{
+			iDotParam = 0;
+			}
+
+		DoDrawLine(rcpy.iTl,TPoint(rcpy.iBr.iX,rcpy.iTl.iY),ETrue); // top
+
+		if (height > 2 && width > 1)
+			{
+			DoDrawLine(TPoint(rcpy.iBr.iX-1,rcpy.iTl.iY+1),TPoint(rcpy.iBr.iX-1,rcpy.iBr.iY-1),ETrue); // right
+			}
+
+		if (height > 1)
+			{
+			DoDrawLine(TPoint(rcpy.iBr.iX-1,rcpy.iBr.iY-1),TPoint(rcpy.iTl.iX-1,rcpy.iBr.iY-1),ETrue); // bottom
+			}
+
+		if (height > 2)
+			{
+			DoDrawLine(TPoint(rcpy.iTl.iX,rcpy.iBr.iY-2),rcpy.iTl,ETrue); // left
+			}
+		
+		// Restore internal line position in case it has been modified by DoDrawLine().
+		// DrawRect() should not be modifying it.
+		iLinePosition = currentLinePosition;
+
+		if (width < 3 || height < 3)
+			{
+			goto nofill;
+			}
+
+		rcpy.Shrink(1,1);
+		rcpy.Move(iOrigin);
+		}
+	else if ((iPenStyle != DirectGdi::ENullPen) && (iPenSize.iWidth >= 1 && iPenSize.iHeight >= 1))
+		{
+		rcpy.Move(iOrigin);
+
+		const DirectGdi::TBrushStyle tempbrushstyle = iBrushStyle;
+		const TRgb tempbrushColor = iBrushColor;
+		const DirectGdi::TDrawMode tempdrawmode = iDrawMode;
+				
+		const TInt halfpenwidth = (iPenSize.iWidth - 1) >> 1;
+		const TInt halfpenheight = (iPenSize.iHeight - 1) >> 1;
+		const TInt otherhalfwidth = (iPenSize.iWidth >> 1) + 1;
+		const TInt otherhalfheight = (iPenSize.iHeight >> 1) + 1;
+
+		rcpy.iBr.iX--;
+		rcpy.iBr.iY--;
+
+		if (((rcpy.iBr.iY - rcpy.iTl.iY) <= (iPenSize.iHeight + 1)) || ((rcpy.iBr.iX - rcpy.iTl.iX) <= (iPenSize.iWidth + 1)))
+			{
+			iBrushColor = iPenColor;
+			iBrushStyle = DirectGdi::ESolidBrush;
+			if(iDrawMode != DirectGdi::EDrawModeWriteAlpha)
+				{			
+				iDrawMode = DirectGdi::EDrawModePEN;
+				}
+						
+			rcpy.iTl.iX -= halfpenwidth;
+			rcpy.iTl.iY -= halfpenheight;
+			rcpy.iBr.iX += otherhalfwidth;
+			rcpy.iBr.iY += otherhalfheight;			
+			RectFill(rcpy);
+			}
+		else
+			{
+			// In the event the pen outline is semi-transparent, we must do the fill first so that the
+			// outline is blended over the top.
+			RectFill(rcpy);
+			
+			iBrushColor = iPenColor;
+			iBrushStyle = DirectGdi::ESolidBrush;
+			if(iDrawMode != DirectGdi::EDrawModeWriteAlpha)
+				{			
+				iDrawMode = DirectGdi::EDrawModePEN;
+				}
+			RectFill(TRect(rcpy.iTl.iX - halfpenwidth,rcpy.iTl.iY - halfpenheight,rcpy.iBr.iX + otherhalfwidth,rcpy.iTl.iY + otherhalfheight)); // top
+			RectFill(TRect(rcpy.iTl.iX - halfpenwidth,rcpy.iTl.iY + otherhalfheight,rcpy.iTl.iX + otherhalfwidth,rcpy.iBr.iY - halfpenheight)); // left
+			RectFill(TRect(rcpy.iBr.iX - halfpenwidth,rcpy.iTl.iY + otherhalfheight,rcpy.iBr.iX + otherhalfwidth,rcpy.iBr.iY - halfpenheight)); // right
+			RectFill(TRect(rcpy.iTl.iX - halfpenwidth,rcpy.iBr.iY - halfpenheight,rcpy.iBr.iX + otherhalfwidth,rcpy.iBr.iY + otherhalfheight)); // bottom
+			}
+		
+		iBrushStyle = tempbrushstyle;
+		iBrushColor = tempbrushColor;
+		iDrawMode = tempdrawmode;
+		goto nofill;
+		}
+	else
+		{
+		rcpy.Move(iOrigin);
+		}
+
+	RectFill(rcpy);
+
+nofill:
+	iBrushBitmap.EndDataAccess(ETrue);
+	}
+
+/**
+Fills the given area using the current brush.
+
+@param aRect The area to fill.
+@panic DGDIAdapter 1013, if the a clipping rectangle is fully outside of the destination bounds (debug only).
+@panic DGDIAdapter 7, if using EPatternedBrush with no brush pattern bitmap.
+ */ 
+void CSwDirectGdiEngine::RectFill(const TRect& aRect)
+	{	
+	if (aRect.IsEmpty() || iBrushStyle == DirectGdi::ENullBrush)
+		{
+		return;
+		}
+	
+	const TPoint origin = iOrigin + iBrushOrigin;
+	const TInt limit = iDefaultRegionPtr->Count();
+	TRect clipRect(0,0,0,0);
+	for (TInt count = 0; count < limit; count++)
+		{
+		clipRect = (*iDefaultRegionPtr)[count];
+		if (!clipRect.Intersects(aRect))
+			{
+			continue;
+			}
+		
+		clipRect.Intersection(aRect);	
+		
+#ifdef _DEBUG
+		TRect deviceRect;
+		iDrawDevice->GetDrawRect(deviceRect);
+		GRAPHICS_ASSERT_DEBUG(clipRect.iTl.iX >= deviceRect.iTl.iX, EDirectGdiPanicOutOfBounds);
+		GRAPHICS_ASSERT_DEBUG(clipRect.iTl.iY >= deviceRect.iTl.iY, EDirectGdiPanicOutOfBounds);
+		GRAPHICS_ASSERT_DEBUG(clipRect.iBr.iX <= deviceRect.iBr.iX, EDirectGdiPanicOutOfBounds);
+		GRAPHICS_ASSERT_DEBUG(clipRect.iBr.iY <= deviceRect.iBr.iY, EDirectGdiPanicOutOfBounds);
+#endif
+
+		TInt xcoord = clipRect.iTl.iX;
+		TInt ycoord = clipRect.iTl.iY;
+		const CGraphicsContext::TDrawMode drawMode = GcDrawMode(iDrawMode);
+		
+		switch(iBrushStyle)
+		{
+		case DirectGdi::ESolidBrush:
+			iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+							clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+			break;
+		case DirectGdi::EPatternedBrush:
+			{
+			iBrushBitmap.BeginDataAccess();
+			CBitwiseBitmap* brushbitmap = iBrushBitmap.Address();
+			
+			GRAPHICS_ASSERT_ALWAYS(brushbitmap != NULL, EDirectGdiPanicInvalidBitmap);
+			
+			TRect sourcerect(clipRect);
+			sourcerect.Move(-origin);
+						
+			DoBitBlt(clipRect.iTl,brushbitmap,iBrushBitmap.DataAddress(),iBrushBitmap.DataStride(),sourcerect);
+			iBrushBitmap.EndDataAccess(ETrue);
+			break;
+			}
+		case DirectGdi::EHorizontalHatchBrush:
+			iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+					clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+			while (Abs((ycoord - origin.iY) % 3) != 2)
+				{
+				ycoord++;
+				}
+			for (; ycoord < clipRect.iBr.iY; ycoord += 3)
+				{
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,ycoord,clipRect.Width(),1,iPenColor,drawMode);
+				}
+				break;
+			case DirectGdi::EVerticalHatchBrush:
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+						clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+				while (Abs((xcoord - origin.iX) % 3) != 2)
+					{
+					xcoord++;
+					}
+				for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+					{
+					iDrawDevice->WriteRgbMulti(xcoord,clipRect.iTl.iY,1,clipRect.Height(),iPenColor,drawMode);
+					}
+				break;
+			case DirectGdi::ESquareCrossHatchBrush:
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+						clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+				while (Abs((ycoord - origin.iY) % 3) != 2)
+					{
+					ycoord++;
+					}
+				for (; ycoord < clipRect.iBr.iY; ycoord += 3) // horizontal lines
+					{
+					iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,ycoord,clipRect.Width(),1,iPenColor,drawMode);
+					}
+
+				ycoord = clipRect.iTl.iY;
+				while (Abs((ycoord - origin.iY) % 3) != 2 && ycoord < clipRect.iBr.iY) // above the top horizontal line
+					{
+					xcoord = clipRect.iTl.iX;
+					while (Abs((xcoord - origin.iX) % 3) != 2)
+						{
+						xcoord++;
+						}
+					for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+						{
+						iDrawDevice->WriteRgb(xcoord,ycoord,iPenColor,drawMode);
+						}
+					ycoord++;
+					}
+				ycoord += 3;
+				for (; ycoord < clipRect.iBr.iY; ycoord += 3) // between the top and bottom horizontals
+					{
+					xcoord = clipRect.iTl.iX;
+					while (Abs((xcoord - origin.iX) % 3) != 2)
+						{
+						xcoord++;
+						}
+					for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+						{
+						iDrawDevice->WriteRgbMulti(xcoord,ycoord - 2,1,2,iPenColor,drawMode);
+						}
+					}
+
+				ycoord -= 3;
+				while (ycoord < clipRect.iBr.iY) // below the bottom horizontal
+					{
+					xcoord = clipRect.iTl.iX;
+					while (Abs((xcoord - origin.iX) % 3) != 2)
+						{
+						xcoord++;
+						}
+					for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+						{
+						iDrawDevice->WriteRgb(xcoord,ycoord,iPenColor,drawMode);
+						}
+					ycoord++;
+					}
+				break;
+			case DirectGdi::EForwardDiagonalHatchBrush:
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+						clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+				for (; ycoord < clipRect.iBr.iY; ycoord++)
+					{
+					xcoord = clipRect.iTl.iX;
+					TInt diff = (origin.iX + origin.iY - xcoord - ycoord) % 3;
+					if (diff < 0)
+						{
+						diff += 3;
+						}
+					xcoord += diff;
+					for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+						{
+						iDrawDevice->WriteRgb(xcoord,ycoord,iPenColor,drawMode);
+						}
+					}
+				break;
+			case DirectGdi::ERearwardDiagonalHatchBrush:
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+						clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+				for (; ycoord < clipRect.iBr.iY; ycoord++)
+					{
+					xcoord = clipRect.iTl.iX;
+					TInt diff = (origin.iX - origin.iY - xcoord + ycoord) % 3;
+					if (diff < 0)
+						{
+						diff += 3;
+						}
+					xcoord += diff;
+					for (; xcoord < clipRect.iBr.iX; xcoord += 3)
+						{
+						iDrawDevice->WriteRgb(xcoord,ycoord,iPenColor,drawMode);
+						}
+					}
+				break;
+			case DirectGdi::EDiamondCrossHatchBrush:
+				{
+				iDrawDevice->WriteRgbMulti(clipRect.iTl.iX,clipRect.iTl.iY,
+						clipRect.Width(),clipRect.Height(),iBrushColor,drawMode);
+				TInt sum = xcoord + ycoord - origin.iX - origin.iY;
+				for (; ycoord < clipRect.iBr.iY; ycoord++,sum++)
+					{
+					TInt currentsum = sum;
+					for (xcoord = clipRect.iTl.iX; xcoord < clipRect.iBr.iX; xcoord++,currentsum++)
+						{
+						if((currentsum & 1) == 0 && ((currentsum & 3) != 0 || ((xcoord-origin.iX) & 1) == 1))
+							{
+							iDrawDevice->WriteRgb(xcoord,ycoord,iPenColor,drawMode);
+							}
+						}
+					}
+				break;
+				}
+			default:
+				return;
+				}
+
+			iDrawDevice->UpdateRegion(clipRect);
+			}		
+	}