--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/codecs/OTACodec/OTACodec.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,89 @@
+// Copyright (c) 1999-2009 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 <fbs.h>
+#include "OTACodec.h"
+
+
+// COtaReadCodec
+COtaReadCodec::COtaReadCodec(const TSize& aSize):
+	iOriginalSize(aSize)
+	{}
+
+COtaReadCodec::~COtaReadCodec()
+	{
+	}
+
+COtaReadCodec* COtaReadCodec::NewL(const TSize& aSize)
+{
+	COtaReadCodec* self = new(ELeave) COtaReadCodec(aSize);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop(self); 
+	return self;
+}
+
+
+TFrameState COtaReadCodec::ProcessFrameL(TBufPtr8& aSrc)
+	{
+	const TUint8* srcStart = aSrc.Ptr();
+	iDataPtr = srcStart;
+	iDataPtrLimit = srcStart + aSrc.Length();
+
+	DoProcessL();
+
+	TInt bytesUsed = iDataPtr - srcStart;
+	aSrc.Shift(bytesUsed);
+
+	iBytesProcessed += bytesUsed;
+	if (iBytesProcessed >= iBytesExpected)
+		{
+		ImageProcessor()->FlushPixels();
+		return EFrameComplete;
+		}
+
+	return EFrameIncomplete;
+	}
+
+void COtaReadCodec::DoProcessL()
+	{
+	CImageProcessor*const imageProc = ImageProcessor();
+	while (iDataPtr < iDataPtrLimit)
+		{
+		TUint8 value = *iDataPtr++;
+
+		// code will compare value with successive masks 0x80, 0x40 etc downto but not including 0
+		for (TUint mask=0x80; mask!=0; mask >>= 1)
+			imageProc->SetPixel((value & mask) ? KRgbBlack : KRgbWhite);
+		}
+	}
+
+void COtaReadCodec::InitFrameL(TFrameInfo& /*aFrameInfo*/, CFrameImageData& /*aFrameImageData*/, TBool aDisableErrorDiffusion, CFbsBitmap& aFrame, CFbsBitmap* /*aDestinationMask*/)
+	{
+	Pos().SetXY(0,0);
+
+	const TSize destinationSize(aFrame.SizeInPixels());
+	TInt reductionFactor = ReductionFactor(iOriginalSize, destinationSize);
+	CImageProcessor* imageProc = ImageProcessorUtility::NewImageProcessorL(aFrame, reductionFactor, EGray2, aDisableErrorDiffusion);
+	SetImageProcessor(imageProc);
+	imageProc->PrepareL(aFrame,iOriginalSize);
+
+	ClearBitmapL(aFrame, KRgbWhite);
+		// do something sensible for partial streamed decodes
+
+	iBytesProcessed = 0;
+	iBytesExpected = ((iOriginalSize.iWidth * iOriginalSize.iHeight) + 7) / 8;
+	}
+