/*

* Copyright (c) 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: Juha Kauppinen, Mika Hokkanen

* 

* Description: Photo Browser

*

*/

// Include files

#include "IEImageDecoder.h"

// ========================== MEMBER FUNCTIONS ============================= //

CIEImageDecoder* CIEImageDecoder::NewL(RFs& aFileServer, MDecodingObserver& aObserver)

{

	CIEImageDecoder* self = new (ELeave) CIEImageDecoder(aFileServer, aObserver);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop();

	return self;

}

CIEImageDecoder::~CIEImageDecoder()

{

	if(iImageDecoder)

	{

		delete iImageDecoder;

		iImageDecoder = NULL;

	}

	if(iExtImageDecoder)

	{

		delete iExtImageDecoder;

		iExtImageDecoder = NULL;

	}

	if(iVisualFrame)

	{

		delete iVisualFrame;

		iVisualFrame = NULL;

	}

}

//EPriorityIdle, EPriorityLow, EPriorityStandard, EPriorityUserInput, EPriorityHigh

CIEImageDecoder::CIEImageDecoder(RFs& aFileServer, MDecodingObserver& aObserver)

: CActive(EPriorityStandard), iFileServer(aFileServer), iObserver(aObserver), iSrcPtr(NULL, 0, 0)

{	

}

void CIEImageDecoder::ConstructL()

{

	CActiveScheduler::Add(this);

	iDecoderBusy = EFalse;

	iDecode2Yuv = EFalse;

	iDecode2Bitmap = EFalse;

	iNumOfBitmaps = 0;

}

void CIEImageDecoder::RunL()

{

	TPtr8 ptr = iVisualFrame->DataPtrL();

	TInt dataSize = ptr.Size(); 

	TUint8* bufU = (TUint8*) ptr.Ptr();

	if(iDecode2Yuv)

	{

		iDecode2Yuv = EFalse;

		//iObserver.YuvImageReadyL(iStatus.Int());

	}

	if(iDecode2Bitmap)

	{

		iDecode2Bitmap = EFalse;

		iObserver.BitmapReadyL(iStatus.Int());

	}		

	iDecoderBusy = EFalse;	

}

void CIEImageDecoder::DoCancel()

{

}

void CIEImageDecoder::GetImageSizeL(const TFileName aFileName, TSize& aSize)

{

	if(iImageDecoder)

	{

		delete iImageDecoder;

		iImageDecoder = NULL;

	}

	iImageDecoder = CImageDecoder::FileNewL(iFileServer, aFileName);

	TFrameInfo frameInfo = iImageDecoder->FrameInfo();

	aSize.iWidth = frameInfo.iOverallSizeInPixels.iWidth;

	aSize.iHeight = frameInfo.iOverallSizeInPixels.iHeight;

	delete iImageDecoder;

	iImageDecoder = NULL;	

}

void CIEImageDecoder::ConvertJpeg2YuvL(const TDesC& aSourceFile, 

								HBufC8& aBuffer, 

								const TImageForamt /*aImageFormat*/)

{

	TInt fileSize = 0;

	TInt blocks = 0;

	iDecoderBusy = ETrue;

	iDecode2Yuv = ETrue;

	if(iExtImageDecoder)

	{

		delete iExtImageDecoder;

		iExtImageDecoder = NULL;

	}

	iExtImageDecoder = CExtJpegDecoder::FileNewL(iFileServer, aSourceFile);

	TFrameInfo frameInfo = iExtImageDecoder->FrameInfo();

	TInt width = frameInfo.iOverallSizeInPixels.iWidth;

	TInt height = frameInfo.iOverallSizeInPixels.iHeight;

	/*if(width%2 != 0)

	    width++;

    if(height%2 != 0)

        height++;*/

	TPtr8 bufPtr = aBuffer.Des();

	iBufU = (TUint8*)bufPtr.Ptr();

	if(iVisualFrame)

	{

		delete iVisualFrame;

		iVisualFrame = NULL;

	}

	iVisualFrame = CVisualFrame::NewL(bufPtr, 

											TSize(width, height), 

											CVisualFrame::EFormatYUV420Planar);

	iExtImageDecoder->ConvertL(&iStatus, iVisualFrame, blocks);

	if(!IsActive())

		SetActive();

}

void CIEImageDecoder::ConvertJpeg2BitmapL(CFbsBitmap& aDestBitmap, TDesC8& aSourceData)

{

	TInt frameNumber = 0;

	iDecoderBusy = ETrue;

	iDecode2Bitmap = ETrue;

	TInt dataSize = aSourceData.Size();

	iSrcPtr.Set((TUint8*)aSourceData.Ptr(), aSourceData.Size(), aSourceData.Size());

	if(iImageDecoder)

	{

		delete iImageDecoder;

		iImageDecoder = NULL;

	}

	iImageDecoder = CImageDecoder::DataNewL(iFileServer, iSrcPtr);

	iImageDecoder->Convert(&iStatus, aDestBitmap, frameNumber);

	iNumOfBitmaps++;

	if(!IsActive())

		SetActive();

}

TPtr8 CIEImageDecoder::GetVisualFrame()

{

	return iVisualFrame->DataPtrL();	 

}

void CIEImageDecoder::CancelDecoding()

{

	if(iDecoderBusy)

	{

		if(iImageDecoder)

			iImageDecoder->Cancel();

		if(iExtImageDecoder)

			iExtImageDecoder->Cancel();

	}

	if(IsActive())

		Cancel();	

}

// EOF