--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/imagedisplay/plugins/mng/PngLayer.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,92 @@
+// Copyright (c) 2004-2009 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:
+//
+
+/** 	@file
+	@internalTechnology */
+#include <e32base.h>
+#include <hal.h>
+#include "MngPlayer.h"
+#include "MngRenderer.h"
+#include "PNGCodec.h"
+
+#include "PngLayer.h"
+
+/*static*/
+CPngLayer* CPngLayer::NewL()
+	{
+	CPngLayer* self = new (ELeave) CPngLayer();
+	CleanupStack::PushL(self);
+	self->iPngBuffer = CBufFlat::NewL(256);
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+CPngLayer::~CPngLayer()
+	{
+	if (iPngCodec)
+		{
+		iPngCodec->Release();
+		iPngCodec = NULL;
+		}
+		
+	delete iPngBuffer;
+	}
+
+void CPngLayer::AppendChunkL(const TMNGChunkHeader& aHeader,MInputStream& aInpStream)
+	{
+	TInt sz=iPngBuffer->Size();
+	iPngBuffer->ResizeL(sz + TMNGChunkHeader::RequiredData() + aHeader.iLength + sizeof(TChunkCrc));
+//  PNG decoder should check CRC for PNG streams...
+	TPtr8 buf( iPngBuffer->Ptr(sz) );
+	aInpStream.ReadL(buf);
+	}
+
+void CPngLayer::ExecuteL(CMngPlayer& aPlayer, TMngExecuteResult& /*aResult*/)
+	{
+#if defined(ENABLE_PNG_LAYER_PROFILE)	
+	TUint32 begin=User::FastCounter();
+#endif // ENABLE_PNG_LAYER_PROFILE
+
+	CMngRenderer* Renderer = aPlayer.Renderer();
+	if (iPngBuffer->Size()!=iPngBuffer->Capacity() && iPngBuffer->Size()!=0)
+		{
+		iPngBuffer->Compress();
+		}
+		
+	Renderer->OnNewImageL();
+	if (Renderer->OutputEnabled())
+		{
+		if (NULL==iPngCodec)
+			{
+			TBufPtr8 ptr;
+			ptr.Set(iPngBuffer->Ptr(0));
+			aPlayer.DecoderFactory().CreatePngDecoderL(iPngCodec);
+			iPngCodec->InitL(Renderer->ImageProcessor(), Renderer->MaskProcessor(), aPlayer.GetDestinationBitmap(), ptr, aPlayer);
+			}
+		else
+			{
+			iPngCodec->ResetL();
+			}
+		iPngCodec->DecodeL();
+		}
+		
+#if defined(ENABLE_PNG_LAYER_PROFILE)
+	TUint32 end=User::FastCounter();
+	TInt freq=0;
+	HAL::Get(HAL::EFastCounterFrequency, freq);
+	RDebug::Print(_L("PNG layer took %d, freq=%d"), end-begin, freq);
+#endif // ENABLE_PNG_LAYER_PROFILE
+	}
+