graphicsdeviceinterface/bitgdi/sbit/GRAPHICS.CPP
changeset 0 5d03bc08d59c
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-1:000000000000 0:5d03bc08d59c
       
     1 // Copyright (c) 1997-2009 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 //
       
    15 
       
    16 #include <fntstore.h>
       
    17 #include <bitmap.h>
       
    18 #include <bitstd.h>
       
    19 #include <bitdev.h>
       
    20 #include "BITPANIC.H"
       
    21 #include <bitdraw.h>
       
    22 #include <graphics/fbsrasterizer.h>
       
    23 #include "bitgcextradata.h"
       
    24 
       
    25 
       
    26 /** Clears a rectangular area.
       
    27 
       
    28 The cleared area is filled with the current brush colour.The function
       
    29 provides a concrete implementation of the pure virtual function
       
    30 CBitmapContext::Clear(const TRect& aRect). The function
       
    31 behaviour is the same as documented in that class. */	
       
    32 EXPORT_C void CFbsBitGc::Clear(const TRect& aRect)
       
    33     {
       
    34 	if (CheckDevice(aRect))
       
    35 		return;
       
    36 
       
    37 	TRect rcpy(aRect);
       
    38 	rcpy.Move(iOrigin);
       
    39 	if (UserClipRect(rcpy))
       
    40 		return;
       
    41 
       
    42 	TBrushStyle tempbrushstyle = iBrushStyle;
       
    43 	iBrushStyle = ESolidBrush;
       
    44 
       
    45 	SetupDevice();
       
    46 	iDevice->DrawingBegin();
       
    47 	RectFill(rcpy);
       
    48 	iDevice->DrawingEnd();
       
    49 
       
    50 	iBrushStyle = tempbrushstyle;
       
    51 	}
       
    52 
       
    53 
       
    54 
       
    55 /** Clears the whole bitmap or a rectangular area of a bitmap.
       
    56 
       
    57 The cleared area is filled with the current brush colour.
       
    58 
       
    59 The function provides a concrete implementation of the pure virtual function 
       
    60 CBitmapContext::Clear(). The function behaviour is the same as documented 
       
    61 in that class. 
       
    62 
       
    63 @see CBitmapContext::Clear() */
       
    64 EXPORT_C void CFbsBitGc::Clear()
       
    65 	{
       
    66 	TRect deviceRect;
       
    67 	iDevice->iDrawDevice->GetDrawRect(deviceRect);
       
    68 	if ((iOrigin.iX!=0) || (iOrigin.iY!=0))
       
    69 		{
       
    70 		deviceRect.Move(-iOrigin);
       
    71 		}
       
    72 	Clear(deviceRect);
       
    73 	}
       
    74 
       
    75 /** Draws a single point.
       
    76 
       
    77 The point is drawn with the current pen settings using the current
       
    78 drawing mode.The function provides a concrete implementation of the
       
    79 pure virtual function CGraphicsContext::Plot(). The
       
    80 function behaviour is the same as documented in that class. */
       
    81 EXPORT_C void CFbsBitGc::Plot(const TPoint& aPoint)
       
    82 	{
       
    83 	if (iPenStyle == ENullPen || (iPenSize.iWidth == 0 && iPenSize.iHeight == 0))
       
    84 		return;
       
    85 
       
    86 	CheckDevice();
       
    87 
       
    88 	TRect plotRect(aPoint + iOrigin,TSize(1,1));
       
    89 	plotRect.Grow((iPenSize.iWidth >> 1) + 1,(iPenSize.iHeight >> 1) + 1);
       
    90 	if (!plotRect.Intersects(iUserClipRect))
       
    91 		return;
       
    92 
       
    93 	SetupDevice();
       
    94 	iDevice->DrawingBegin();
       
    95 	DoPlot(aPoint);
       
    96 	iDevice->DrawingEnd();
       
    97 	}
       
    98 
       
    99 void CFbsBitGc::DoPlot(const TPoint& aPoint)
       
   100 	{
       
   101 	CFbsDrawDevice* drawDevice = iDevice->iDrawDevice;
       
   102 
       
   103 	const TSize oneByOne(1,1);
       
   104 	const TPoint point(aPoint + iOrigin);
       
   105 
       
   106 	TRect temp(point,oneByOne);
       
   107 	if (iPenSize.iWidth > 1 || iPenSize.iHeight > 1)
       
   108 		temp.Grow(iPenSize.iWidth >> 1,iPenSize.iHeight >> 1);
       
   109 	AddRect(temp);
       
   110 
       
   111 	const CGraphicsContext::TPenStyle penStyle = iPenStyle;
       
   112 	iPenStyle = CGraphicsContext::ESolidPen;
       
   113 
       
   114 #if defined(_DEBUG)
       
   115 	TRect deviceRect;
       
   116 	drawDevice->GetDrawRect(deviceRect);
       
   117 #endif
       
   118 
       
   119 	const TInt limit = iDefaultRegionPtr->Count();
       
   120 	for (TInt count = 0; count < limit; count++)
       
   121 		{
       
   122 		iClipRect = (*iDefaultRegionPtr)[count];
       
   123 		if (!iClipRect.Intersects(temp))
       
   124 			continue;
       
   125 
       
   126 		iClipRect.Intersection(temp);
       
   127 		if (UserClipRect(iClipRect))
       
   128 			continue;
       
   129 
       
   130 		if (iPenSize == oneByOne)
       
   131 			{
       
   132 			if (iClipRect.Contains(point))
       
   133 				{
       
   134 				BG_ASSERT_DEBUG(point.iX >= deviceRect.iTl.iX, EBitgdiPanicOutOfBounds);
       
   135 				BG_ASSERT_DEBUG(point.iY >= deviceRect.iTl.iY, EBitgdiPanicOutOfBounds);
       
   136 				BG_ASSERT_DEBUG(point.iX <= deviceRect.iBr.iX, EBitgdiPanicOutOfBounds);
       
   137 				BG_ASSERT_DEBUG(point.iY <= deviceRect.iBr.iY, EBitgdiPanicOutOfBounds);
       
   138 
       
   139 				drawDevice->WriteRgb(point.iX,point.iY,iPenColor,iDrawMode);
       
   140 				}
       
   141 			}
       
   142 		else if (iPenSize.iWidth > 0 && iPenSize.iHeight > 0)
       
   143 			PenDrawClipped(point);
       
   144 
       
   145 		drawDevice->UpdateRegion(iClipRect);
       
   146 		}
       
   147 
       
   148 	iPenStyle = penStyle;
       
   149 	}
       
   150 
       
   151 
       
   152 /** Sets the shadow area.
       
   153 
       
   154 @param aRegion The region defining the shadow area. */
       
   155 EXPORT_C void CFbsBitGc::ShadowArea(const TRegion* aRegion)
       
   156 	{
       
   157 	ShadowFadeArea(aRegion,CFbsDrawDevice::EShadow);
       
   158 	}
       
   159 
       
   160  
       
   161 /** Sets the fade area.
       
   162 
       
   163 @param aRegion The region defining the fade area. */
       
   164 EXPORT_C void CFbsBitGc::FadeArea(const TRegion* aRegion)
       
   165 	{
       
   166 	ShadowFadeArea(aRegion,CFbsDrawDevice::EFade);
       
   167 	}
       
   168 
       
   169 void CFbsBitGc::ShadowFadeArea(const TRegion* aRegion,TInt8 aShadowMode)
       
   170 	{
       
   171 	if (!aRegion || aRegion->CheckError())
       
   172 		return;
       
   173 
       
   174 	CFbsDrawDevice* drawDevice = iDevice->iDrawDevice;
       
   175 
       
   176 	CheckDevice();
       
   177 
       
   178 	TRect deviceRect;
       
   179 	drawDevice->GetDrawRect(deviceRect);
       
   180 
       
   181 	TInt8 shadowMode = iShadowMode;
       
   182 	iShadowMode = aShadowMode;
       
   183 
       
   184 	CGraphicsAccelerator* ga = GraphicsAccelerator();
       
   185 
       
   186 	SetupDevice();
       
   187 	iDevice->DrawingBegin();
       
   188 
       
   189 	const TInt limit = aRegion->Count();
       
   190 	TInt count;
       
   191     //use Graphics accelerator if available
       
   192 	if(ga)
       
   193 		{
       
   194 		if(iShadowMode & CFbsDrawDevice::EFade)
       
   195 			{
       
   196 	        TInt gaOperationResult = KErrUnknown;
       
   197             iDevice->DrawingEnd();
       
   198 
       
   199 			TGopFadeParams gopFadeParams;
       
   200 			gopFadeParams.iScale = iFadeWhiteMap-iFadeBlackMap+1;
       
   201 			gopFadeParams.iOffset = iFadeBlackMap;
       
   202 
       
   203 			for (count = 0; count < limit; count++)
       
   204 				{
       
   205 				iClipRect = (*aRegion)[count];
       
   206 				iClipRect.Move(iOrigin);
       
   207 				if(!iClipRect.Intersects(deviceRect))
       
   208 					continue;
       
   209 
       
   210 				iClipRect.Intersection(deviceRect);
       
   211 				AddRect(iClipRect);
       
   212 
       
   213 				gaOperationResult = ga->Operation(TGopFadeRect(iClipRect,gopFadeParams));
       
   214 				if(gaOperationResult != KErrNone)
       
   215 					break;
       
   216 				}
       
   217 			if(gaOperationResult == KErrNone)
       
   218 				goto finish;
       
   219 			iDevice->DrawingBegin();
       
   220 			}
       
   221 		}
       
   222 
       
   223     //use graphics contex
       
   224 	for (count = 0; count < limit; count++)
       
   225 		{
       
   226 		iClipRect = (*aRegion)[count];
       
   227 		iClipRect.Move(iOrigin);
       
   228 		if(!iClipRect.Intersects(deviceRect))
       
   229 			continue;
       
   230 
       
   231 		iClipRect.Intersection(deviceRect);
       
   232 		AddRect(iClipRect);
       
   233 
       
   234 		drawDevice->ShadowArea(iClipRect);
       
   235 		drawDevice->UpdateRegion(iClipRect);
       
   236 		}
       
   237 
       
   238 	iDevice->DrawingEnd();
       
   239 
       
   240 finish:
       
   241 	iShadowMode = shadowMode;
       
   242 	}
       
   243 
       
   244 // if iBrushBitmap is an extended bitmap, PrepareRasterizerForExtendedBitmap() must have been called before this method
       
   245 void CFbsBitGc::ClipFillLine(TPoint aLeft,TPoint aRight)
       
   246 	{
       
   247 	if (iBrushStyle == ENullBrush || 
       
   248 		aLeft.iY < iClipRect.iTl.iY || aLeft.iY >= iClipRect.iBr.iY)
       
   249 		return;
       
   250 
       
   251 	aLeft.iX = Max(aLeft.iX,iClipRect.iTl.iX);
       
   252 	aRight.iX = Min(aRight.iX,iClipRect.iBr.iX-1);
       
   253 	if (aLeft.iX > aRight.iX)
       
   254 		return;
       
   255 
       
   256 	BG_ASSERT_DEBUG(iUserClipRect.Contains(aLeft),EBitgdiPanicOutOfBounds);
       
   257 
       
   258 	TInt xcoord = aLeft.iX;
       
   259 	TInt length = aRight.iX - aLeft.iX + 1;
       
   260 	TPoint origin(iOrigin + iBrushOrigin);
       
   261 
       
   262 	BG_ASSERT_DEBUG(aLeft.iX + length <= iUserClipRect.iBr.iX,EBitgdiPanicOutOfBounds);
       
   263 
       
   264 	CFbsDrawDevice* drawDevice = iDevice->iDrawDevice;
       
   265 
       
   266 	switch(iBrushStyle)
       
   267 		{
       
   268 	case ESolidBrush:
       
   269 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   270 		return;
       
   271 	case EPatternedBrush:
       
   272 		{
       
   273 		CBitwiseBitmap* brushBitmap = iBrushBitmap.Address();
       
   274 		BG_ASSERT_ALWAYS(iBrushUsed,EBitgdiPanicInvalidBitmap);
       
   275 		BG_ASSERT_ALWAYS(brushBitmap != NULL,EBitgdiPanicInvalidBitmap);
       
   276 
       
   277 		TRect sourcerect(aLeft,TSize(length,1));
       
   278 		sourcerect.Move(-origin);
       
   279 		DoBitBlt(aLeft,brushBitmap,iBrushBitmap.DataAddress(),iBrushBitmap.DataStride(),sourcerect);
       
   280 		return;
       
   281 		}
       
   282 	case EHorizontalHatchBrush:
       
   283 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   284 		if (Abs((aLeft.iY - origin.iY) % 3) == 2)
       
   285 			drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iPenColor,iDrawMode);
       
   286 		return;
       
   287 	case EVerticalHatchBrush:
       
   288 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   289 		while (Abs((xcoord - origin.iX) % 3) != 2)
       
   290 			xcoord++;
       
   291 		for (; xcoord < aLeft.iX + length; xcoord += 3)
       
   292 			drawDevice->WriteRgb(xcoord,aLeft.iY,iPenColor,iDrawMode);
       
   293 		return;
       
   294 	case ESquareCrossHatchBrush:
       
   295 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   296 		if (Abs((aLeft.iY - origin.iY) % 3) == 2)
       
   297 			drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iPenColor,iDrawMode);
       
   298 		else
       
   299 			{
       
   300 			while (Abs((xcoord - origin.iX) % 3) != 2)
       
   301 				xcoord++;
       
   302 			for (; xcoord < aLeft.iX + length; xcoord += 3)
       
   303 				drawDevice->WriteRgb(xcoord,aLeft.iY,iPenColor,iDrawMode);
       
   304 			}
       
   305 		return;
       
   306 	case EForwardDiagonalHatchBrush:
       
   307 		{
       
   308 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   309 		TInt diff = (origin.iX + origin.iY - aLeft.iX - aLeft.iY) % 3;
       
   310 		if (diff < 0)
       
   311 			diff += 3;
       
   312 		xcoord += diff;
       
   313 		for (; xcoord < aLeft.iX + length; xcoord += 3)
       
   314 			drawDevice->WriteRgb(xcoord,aLeft.iY,iPenColor,iDrawMode);
       
   315 		}
       
   316 		return;
       
   317 	case ERearwardDiagonalHatchBrush:
       
   318 		{
       
   319 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   320 		TInt diff = (origin.iX - origin.iY - aLeft.iX + aLeft.iY) % 3;
       
   321 		if (diff < 0)
       
   322 			diff += 3;
       
   323 		xcoord += diff;
       
   324 		for (; xcoord < aLeft.iX + length; xcoord += 3)
       
   325 			drawDevice->WriteRgb(xcoord,aLeft.iY,iPenColor,iDrawMode);
       
   326 		}
       
   327 		return;
       
   328 	case EDiamondCrossHatchBrush:
       
   329 		{
       
   330 		drawDevice->WriteRgbMulti(aLeft.iX,aLeft.iY,length,1,iBrushColor,iDrawMode);
       
   331 		TInt sum = aLeft.iX + aLeft.iY - origin.iX - origin.iY;
       
   332 		for (; xcoord < aLeft.iX + length; xcoord++,sum++)
       
   333 			if ((sum & 1) == 0 && ((sum & 3) != 0 || ((xcoord-origin.iX) & 1) == 1))
       
   334 				drawDevice->WriteRgb(xcoord,aLeft.iY,iPenColor,iDrawMode);
       
   335 		}
       
   336 		return;
       
   337 	default:
       
   338 		return;
       
   339 		}
       
   340 	}
       
   341 
       
   342 void CFbsBitGc::PenAllocate()
       
   343 	{
       
   344 	iFbsBitGcExtraData->ResetPenArray();
       
   345 	if (iPenSize.iWidth == 1 && iPenSize.iHeight == 1)
       
   346 		return;
       
   347 
       
   348 	const TInt doublepenheight = iPenSize.iHeight << 1;
       
   349 
       
   350 	TInt* penArray = new TInt[doublepenheight];
       
   351 	if (!penArray)
       
   352 		return;
       
   353 
       
   354 	iFbsBitGcExtraData->SetPenArray(penArray);
       
   355 
       
   356 	if (iPenSize.iWidth == 1 || iPenSize.iWidth == 2 || iPenSize.iHeight == 1 || iPenSize.iHeight == 2)
       
   357 		{
       
   358 		TInt* bitGcPenArray = iFbsBitGcExtraData->PenArray();
       
   359 		for (TInt count = 0; count < iPenSize.iHeight; count += 2)
       
   360 			{
       
   361 			bitGcPenArray[doublepenheight - count - 2] = 0;
       
   362 			bitGcPenArray[doublepenheight - count - 1] = iPenSize.iWidth - 1;
       
   363 			bitGcPenArray[count] = 0;
       
   364 			bitGcPenArray[count + 1] = iPenSize.iWidth - 1;
       
   365 			}
       
   366 		}
       
   367 	else
       
   368 		{
       
   369 		TPoint tl,tr,bl,br;
       
   370 		TEllipse ellipse;
       
   371 		ellipse.Construct(TRect(iPenSize));
       
   372 		TInt* bitGcPenArray = iFbsBitGcExtraData->PenArray();
       
   373 		for (TInt count = 0; count < iPenSize.iHeight; count += 2)
       
   374 			{
       
   375 			//coverity[check_return]
       
   376 			//coverity[unchecked_value]
       
   377 			ellipse.NextStep(tl,tr,bl,br);
       
   378 			bitGcPenArray[doublepenheight - count - 2] = bl.iX;
       
   379 			bitGcPenArray[doublepenheight - count - 1] = br.iX;
       
   380 			bitGcPenArray[count] = tl.iX;
       
   381 			bitGcPenArray[count + 1] = tr.iX;
       
   382 			}
       
   383 		}
       
   384 	}
       
   385 
       
   386 void CFbsBitGc::PenDrawClipped(TPoint aPoint)
       
   387 	{
       
   388 	BG_ASSERT_DEBUG(iPenSize.iWidth > 0,EBitgdiPanicZeroLength);
       
   389 	BG_ASSERT_DEBUG(iPenSize.iHeight > 0,EBitgdiPanicZeroLength);
       
   390 
       
   391 	aPoint.iX -= ((iPenSize.iWidth - 1) >> 1);
       
   392 	aPoint.iY -= ((iPenSize.iHeight - 1) >> 1);
       
   393 
       
   394 	BG_ASSERT_DEBUG(iClipRect.iTl.iX >= iUserClipRect.iTl.iX,EBitgdiPanicOutOfBounds);
       
   395 	BG_ASSERT_DEBUG(iClipRect.iTl.iY >= iUserClipRect.iTl.iY,EBitgdiPanicOutOfBounds);
       
   396 	BG_ASSERT_DEBUG(iClipRect.iBr.iX <= iUserClipRect.iBr.iX,EBitgdiPanicOutOfBounds);
       
   397 	BG_ASSERT_DEBUG(iClipRect.iBr.iY <= iUserClipRect.iBr.iY,EBitgdiPanicOutOfBounds);
       
   398 
       
   399 	CFbsDrawDevice* drawDevice = iDevice->iDrawDevice;
       
   400 
       
   401 	if (iPenSize.iWidth == 1 && iPenSize.iHeight == 1)
       
   402 		{
       
   403 		if (iPenStyle == CGraphicsContext::ESolidPen || (iDotMask & (1 << (iDotParam % iDotLength))))
       
   404 			if (iClipRect.Contains(aPoint))
       
   405 				drawDevice->WriteRgb(aPoint.iX,aPoint.iY,iPenColor,iDrawMode);
       
   406 		}
       
   407 	else if (iFbsBitGcExtraData->PenArray())
       
   408 		{
       
   409 		TInt ycoord = aPoint.iY;
       
   410 		const TInt maxdim = Max(iPenSize.iWidth,iPenSize.iHeight);
       
   411 		const TInt doublepenheight = iPenSize.iHeight << 1;
       
   412 
       
   413 		if (iPenStyle == CGraphicsContext::ESolidPen || (iDotMask & (1 << ((iDotParam / maxdim) % iDotLength))))
       
   414 			{
       
   415 			for (TInt ix = 0; ix < doublepenheight; ycoord++,ix += 2)
       
   416 				{
       
   417 				if (ycoord >= iClipRect.iTl.iY && ycoord < iClipRect.iBr.iY)
       
   418 					{
       
   419 					TInt left = aPoint.iX + iFbsBitGcExtraData->PenArray()[ix];
       
   420 					TInt right = aPoint.iX + iFbsBitGcExtraData->PenArray()[ix+1];
       
   421 					if (left < iClipRect.iTl.iX)
       
   422 						left = iClipRect.iTl.iX;
       
   423 					if (right >= iClipRect.iBr.iX)
       
   424 						right = iClipRect.iBr.iX - 1;
       
   425 					if (left <= right)
       
   426 						drawDevice->WriteRgbMulti(left,ycoord,right - left + 1,1,iPenColor,CGraphicsContext::EDrawModePEN);
       
   427 					}
       
   428 				}
       
   429 			}
       
   430 		}
       
   431 	else
       
   432 		{
       
   433 		TPoint tl,tr,bl,br;
       
   434 		TEllipse ellipse;
       
   435 		ellipse.Construct(TRect(aPoint,iPenSize));
       
   436 		while (!ellipse.NextStep(tl,tr,bl,br))
       
   437 			{
       
   438 			if (tl.iY >= iClipRect.iTl.iY && tl.iY < iClipRect.iBr.iY)
       
   439 				{
       
   440 				if (tl.iX < iClipRect.iTl.iX)
       
   441 					tl.iX = iClipRect.iTl.iX;
       
   442 				if (tr.iX >= iClipRect.iBr.iX)
       
   443 					tr.iX = iClipRect.iBr.iX-1;
       
   444 				if (tl.iX <= tr.iX)
       
   445 					drawDevice->WriteRgbMulti(tl.iX,tl.iY,tr.iX - tl.iX + 1,1,iPenColor,CGraphicsContext::EDrawModePEN);
       
   446 				}
       
   447 			if (bl.iY >= iClipRect.iTl.iY && bl.iY < iClipRect.iBr.iY)
       
   448 				{
       
   449 				if (bl.iX < iClipRect.iTl.iX)
       
   450 					bl.iX = iClipRect.iTl.iX;
       
   451 				if (br.iX >= iClipRect.iBr.iX)
       
   452 					br.iX = iClipRect.iBr.iX - 1;
       
   453 				if (bl.iX <= br.iX)
       
   454 					drawDevice->WriteRgbMulti(bl.iX,bl.iY,br.iX - bl.iX + 1,1,iPenColor,CGraphicsContext::EDrawModePEN);
       
   455 				}
       
   456 			}
       
   457 
       
   458 		if (tl.iY == bl.iY && tl.iY >= iClipRect.iTl.iY && tl.iY < iClipRect.iBr.iY)
       
   459 			{
       
   460 			if (tl.iX < iClipRect.iTl.iX)
       
   461 				tl.iX = iClipRect.iTl.iX;
       
   462 			if (tr.iX >= iClipRect.iBr.iX)
       
   463 				tr.iX = iClipRect.iBr.iX - 1;
       
   464 			if (tl.iX <= tr.iX)
       
   465 				drawDevice->WriteRgbMulti(tl.iX,tl.iY,tr.iX - tl.iX + 1,1,iPenColor,CGraphicsContext::EDrawModePEN);
       
   466 			}
       
   467 		}
       
   468 	}
       
   469 
       
   470 void CFbsBitGc::PenDrawDeferred(TPoint aPoint,TInt* aArray,TInt aFirstElement)
       
   471 	{
       
   472 	BG_ASSERT_DEBUG(iFbsBitGcExtraData->PenArray(),EBitgdiPanicZeroLength);
       
   473 	BG_ASSERT_DEBUG(iPenSize.iWidth > 0,EBitgdiPanicZeroLength);
       
   474 	BG_ASSERT_DEBUG(iPenSize.iHeight > 0,EBitgdiPanicZeroLength);
       
   475 	BG_ASSERT_DEBUG(iClipRect.iTl.iX >= iUserClipRect.iTl.iX,EBitgdiPanicOutOfBounds);
       
   476 	BG_ASSERT_DEBUG(iClipRect.iTl.iY >= iUserClipRect.iTl.iY,EBitgdiPanicOutOfBounds);
       
   477 	BG_ASSERT_DEBUG(iClipRect.iBr.iX <= iUserClipRect.iBr.iX,EBitgdiPanicOutOfBounds);
       
   478 	BG_ASSERT_DEBUG(iClipRect.iBr.iY <= iUserClipRect.iBr.iY,EBitgdiPanicOutOfBounds);
       
   479 
       
   480 	aPoint.iX -= ((iPenSize.iWidth - 1) >> 1);
       
   481 	const TInt doublepenheight = iPenSize.iHeight << 1;
       
   482 
       
   483 	for (TInt ix = 0; ix < doublepenheight; ix++,aFirstElement++)
       
   484 		{
       
   485 		if (aFirstElement == doublepenheight)
       
   486 			aFirstElement = 0;
       
   487 		TInt newval = aPoint.iX + iFbsBitGcExtraData->PenArray()[ix];
       
   488 		if (newval < aArray[aFirstElement])
       
   489 			aArray[aFirstElement] = newval;
       
   490 
       
   491 		ix++;
       
   492 		aFirstElement++;
       
   493 		newval = aPoint.iX + iFbsBitGcExtraData->PenArray()[ix];
       
   494 		if (newval > aArray[aFirstElement])
       
   495 			aArray[aFirstElement] = newval;
       
   496 		}
       
   497 	}
       
   498 
       
   499 //Default implementation of reserved virtual
       
   500 EXPORT_C void CFbsBitGc::Reserved_CGraphicsContext_2()
       
   501 	{
       
   502 	CBitmapContext::Reserved_CGraphicsContext_2();
       
   503 	}
       
   504 
       
   505 //Default implementation of reserved virtual
       
   506 EXPORT_C void CFbsBitGc::Reserved_CBitmapContext_1()
       
   507 	{
       
   508 	CBitmapContext::Reserved_CBitmapContext_1();
       
   509 	}
       
   510 
       
   511 //Default implementation of reserved virtual
       
   512 EXPORT_C void CFbsBitGc::Reserved_CBitmapContext_2()
       
   513 	{
       
   514 	CBitmapContext::Reserved_CBitmapContext_2();
       
   515 	}
       
   516 
       
   517 //Default implementation of reserved virtual
       
   518 EXPORT_C void CFbsBitGc::Reserved_CBitmapContext_3()
       
   519 	{
       
   520 	CBitmapContext::Reserved_CBitmapContext_3();
       
   521 	}
       
   522 
       
   523 //Default implementation of reserved virtual
       
   524 EXPORT_C void CFbsBitGc::Reserved_CFbsBitGc_1()
       
   525 	{
       
   526 	}
       
   527 
       
   528 //Default implementation of reserved virtual
       
   529 EXPORT_C void CFbsBitGc::Reserved_CFbsBitGc_2()
       
   530 	{
       
   531 	}
       
   532 
       
   533 //Default implementation of reserved virtual
       
   534 EXPORT_C void CFbsBitGc::Reserved_CFbsBitGc_3()
       
   535 	{
       
   536 	}
       
   537 
       
   538 //Default implementation of reserved virtual
       
   539 EXPORT_C void CFbsBitGc::Reserved_CFbsBitGc_4()
       
   540 	{
       
   541 	}
       
   542 
       
   543 //Default implementation of reserved virtual
       
   544 EXPORT_C void CFbsBitGc::Reserved_CFbsBitGc_5()
       
   545 	{
       
   546 	}