// 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

	}