mmplugins/imagingplugins/codecs/JPEGCodec/Exif/exifdecoder.cpp
changeset 0 40261b775718
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmplugins/imagingplugins/codecs/JPEGCodec/Exif/exifdecoder.cpp	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,110 @@
+// 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:
+//
+
+#include <f32file.h>
+#include "ExifTagHelper.h"
+
+#include "exifdecoder.h"
+#include "ImageUtils.h"
+#include "ExifTagDescriptions.h"
+
+
+// Setters (not supported - this is a decoder)
+TInt CExifDecoder::SetParam8(TUint /*aTag*/, TUint /*aIfd*/, HBufC8* /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+
+TInt CExifDecoder::SetParam16(TUint /*aTag*/, TUint /*aIfd*/, HBufC16* /*aParam*/)
+	{
+	return KErrNotSupported;	
+	}
+
+TInt CExifDecoder::SetIntegerParam(TUint /*aTag*/, TUint /*aIfd*/, TInt /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+	
+TInt CExifDecoder::SetShortParam(TUint /*aTag*/, TUint /*aIfd*/, TUint16 /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+	
+TInt CExifDecoder::SetRationalParam(TUint /*aTag*/, TUint /*aIfd*/, TInt /*aNumerator*/, TInt /*aDenominator*/)
+	{
+	return KErrNotSupported;
+	}
+	
+TInt CExifDecoder::SetIntegerArrayParam(TUint /*aTag*/, TUint /*aIfd*/, CArrayFix<TInt>& /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+	
+TInt CExifDecoder::SetShortArrayParam(TUint /*aTag*/, TUint /*aIfd*/, CArrayFix<TUint16>& /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+	
+TInt CExifDecoder::SetRationalArrayParam(TUint /*aTag*/, TUint /*aIfd*/, CArrayFix<TRational>& /*aParam*/)
+	{
+	return KErrNotSupported;
+	}
+
+/*static*/
+CExifDecoder* CExifDecoder::NewL(TUint aApp1Size, const TUint8* aData)
+	{
+	CExifDecoder* self = new (ELeave) CExifDecoder();
+	CleanupStack::PushL(self);
+	self->ConstructL(aData, aApp1Size);
+	CleanupStack::Pop(self);
+	return self;	
+	}
+
+CExifDecoder::CExifDecoder()
+	{
+	}
+	
+void CExifDecoder::ConstructL(const TUint8* aData, TUint aApp1Size)
+	{
+	// use const_cast since the shared implementation beneath is also used
+	// for the encoder and transform, and hence cannot be const
+	TUint8* dataPtr = const_cast<TUint8*>(aData);
+	InitializeIfdsL(dataPtr, aApp1Size);
+	}
+
+CExifDecoder::~CExifDecoder()
+	{
+	}
+	
+void CExifDecoder::SetIfd1L()
+	{
+	TUint offsetToFirstIfd = 0;
+	
+	CIfdGeneral* ifd0 = GetIfd(EZeroth);
+	ASSERT(ifd0);
+
+	if (ifd0->GetOffsetToFirstIfd(offsetToFirstIfd) == KErrNone)
+		{
+		if ((offsetToFirstIfd != 0) && (CheckExifOffset(offsetToFirstIfd) == KErrNone))
+			{
+			CIfd1* ifd1 = CIfd1::NewLC(offsetToFirstIfd, iBase, iIntel, iExifDataLength);
+			iIfds.AppendL(ifd1);
+			CleanupStack::Pop(ifd1);
+
+			SetThumbnailDataBaseL(ifd1, EFalse);	
+			}		
+		}
+	}
+