--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtprotocolplugins/DisplaySink/src/vtyuvconverter.cpp	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,109 @@
+/*
+* Copyright (c) 2005-2006 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:  YUV format transcoder.
+*
+*/
+
+
+#include "vtyuvconverter.h"
+
+#ifdef _DEBUG
+    #include <e32debug.h>
+    #define PRINT RDebug::Print
+    #define _IFDBG(a) a
+#else
+    #define PRINT
+    #define _IFDBG(a)
+#endif
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// VtYuvConverter::ConvertFrom420PlanarTo422Interleaved
+// ---------------------------------------------------------------------------
+//
+TInt VtYuvConverter::ConvertFrom420PlanarTo422Interleaved(
+    const TDesC8& aSource,
+    const TSize& aSize,
+    TDes8& aTarget,
+    TInt aStride )
+    {
+    _IFDBG(PRINT( _L( "VtYuvConverter::ConvertFrom420PlanarTo422Interleaved<" ) ));
+
+    if ( aTarget.MaxLength() < ByteSize422Interleaved( aSize ) )
+        {
+        _IFDBG(PRINT( _L( "VtYuvConverter::ConvertFrom420PlanarTo422Interleaved> TargetMaxLength < ByteSize422" ) ));
+        return KErrUnderflow;
+        }
+
+    if ( aSource.Size() != ByteSize420Planar( aSize ) )
+        {
+        _IFDBG(PRINT( _L( "VtYuvConverter::ConvertFrom420PlanarTo422Interleaved> 420SourceSize != ByteSize420" ) ));
+        return KErrArgument;
+        }
+
+    TInt planeSize( aSize.iWidth * aSize.iHeight );
+    const TUint8* sy = aSource.Ptr();
+    const TUint8* su = sy + planeSize;
+    const TUint8* sv = su + ( planeSize >> 2 );
+    TUint8* t = const_cast< TUint8* >( aTarget.Ptr() );
+
+    TUint8* tsave = t;
+    for ( TInt y = ( aSize.iHeight >> 1 ) - 1; y >= 0; y-- )
+        {
+        const TUint8* susave = su;
+        const TUint8* svsave = sv;
+        for ( TInt x = ( aSize.iWidth >> 1 ) - 1; x >= 0; x-- )
+            {
+            *t++ = *su++;
+            *t++ = *sy++;
+            *t++ = *sv++;
+            *t++ = *sy++;
+            }
+        tsave = t = tsave + aStride;
+        su = susave;
+        sv = svsave;
+        for ( TInt x = ( aSize.iWidth >> 1 ) - 1; x >= 0; x-- )
+            {
+            *t++ = *su++;
+            *t++ = *sy++;
+            *t++ = *sv++;
+            *t++ = *sy++;
+            }
+        tsave = t = tsave + aStride;
+        }
+
+    _IFDBG(PRINT( _L( "VtYuvConverter::ConvertFrom420PlanarTo422Interleaved>" ) ));
+    return KErrNone;
+    }
+
+// ---------------------------------------------------------------------------
+// VtYuvConverter::ByteSize420Planar
+// ---------------------------------------------------------------------------
+//
+TInt VtYuvConverter::ByteSize420Planar( const TSize& aSizeInPixels )
+    {
+    TInt planeSize( aSizeInPixels.iWidth * aSizeInPixels.iHeight );
+    return planeSize + planeSize / 2;
+    }
+
+// ---------------------------------------------------------------------------
+// VtYuvConverter::ByteSize422Interleaved
+// ---------------------------------------------------------------------------
+//
+TInt VtYuvConverter::ByteSize422Interleaved( const TSize& aSizeInPixels )
+    {
+    TInt planeSize( aSizeInPixels.iWidth * aSizeInPixels.iHeight );
+    return planeSize * 2;
+    }