--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtprotocolplugins/DisplaySink/src/CVtImageIYUV.cpp	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,294 @@
+/*
+* Copyright (c) 2004 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:  Image Transforms subsystem.
+*
+*/
+
+
+// INCLUDE FILES
+
+#include <e32svr.h>
+#include <fbs.h>
+
+#include "CVtImageIYUV.h"
+
+// MACROS
+
+#ifdef _DEBUG
+#    define __IF_DEBUG(t) {RDebug::t;}
+#else
+#    define __IF_DEBUG(t)
+#endif
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::NewL( TInt aBitmapHandle )
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( const TSize& aSize )
+    {
+    CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize );
+    CleanupStack::PushL( self );
+    self->ConstructL( 0 );
+    CleanupStack::Pop(); // self
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::NewL( const TSize& aSize, TDisplayMode aDisplayMode, 
+//  const TDesC8& aImage )
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( 
+        const TSize& aSize, 
+        const TDesC8& aImage )
+    {
+    CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize );
+    CleanupStack::PushL( self );
+    self->ConstructL( &aImage );
+    CleanupStack::Pop(); // self
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::NewL( const TSize& aSize, TDisplayMode aDisplayMode, 
+//  TPtr8& aImage )
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageIYUV* CVtImageIYUV::NewL( 
+        const TSize& aSize, 
+        TPtr8& aImage )
+    {
+    CVtImageIYUV* self = new ( ELeave ) CVtImageIYUV( aSize );
+    CleanupStack::PushL( self );
+    self->ValidateSizeL( aSize );
+    self->SetImageL( aImage ); // No constructor call!
+    CleanupStack::Pop(); // self
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::~CVtImageIYUV()
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageIYUV::~CVtImageIYUV()
+    {
+    delete iImage;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::SetImageL( const TDesC8& aImage )
+// -----------------------------------------------------------------------------
+EXPORT_C void CVtImageIYUV::SetImageL( const TDesC8& aImage )
+    {
+    CheckDescriptorSizeL( aImage );
+    if( !iImage )
+        {
+        ConstructL( &aImage );
+        }
+    else
+        {
+        *iImage = aImage;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::SetImageL( TPtr8& aImage )
+// -----------------------------------------------------------------------------
+EXPORT_C void CVtImageIYUV::SetImageL( TPtr8& aImage )
+    {
+    CheckDescriptorSizeL( aImage );
+    delete iImage; iImage = 0;
+    iPtrImage.Set( aImage );
+    SetYUVPointers();
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::Image() const
+// -----------------------------------------------------------------------------
+EXPORT_C TPtrC8 CVtImageIYUV::Image() const
+    {
+    return iPtrImage;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::Y() const
+// -----------------------------------------------------------------------------
+EXPORT_C TUint8* CVtImageIYUV::Y() const
+    {
+    return iY;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::U() const
+// -----------------------------------------------------------------------------
+EXPORT_C TUint8* CVtImageIYUV::U() const
+    {
+    return iU;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::V() const
+// -----------------------------------------------------------------------------
+EXPORT_C TUint8* CVtImageIYUV::V() const
+    {
+    return iV;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::UVPlaneWidth() const
+// -----------------------------------------------------------------------------
+EXPORT_C TInt CVtImageIYUV::UVPlaneWidth() const
+    {
+    return iSize.iWidth / 2;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::UVPlaneHeight() const
+// -----------------------------------------------------------------------------
+EXPORT_C TInt CVtImageIYUV::UVPlaneHeight() const
+    {
+    return iSize.iHeight / 2;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::NeedHeapLock() const
+// -----------------------------------------------------------------------------
+TBool CVtImageIYUV::NeedHeapLock() const
+    {
+    return EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::DisplayMode() const
+// -----------------------------------------------------------------------------
+CVtImage::TVtDisplayMode CVtImageIYUV::DisplayMode() const
+    {
+    return CVtImage::EVtColorIYUV;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::Size() const
+// -----------------------------------------------------------------------------
+TSize CVtImageIYUV::Size() const
+    {
+    return iSize;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::BytesPerRow() const
+// -----------------------------------------------------------------------------
+TInt CVtImageIYUV::BytesPerRow() const
+    {
+    return iSize.iWidth;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::DataAddress() const
+// -----------------------------------------------------------------------------
+TUint32* CVtImageIYUV::DataAddress() const
+    {
+    return reinterpret_cast< TUint32* >( iY );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::LineAddress( TInt aLine ) const
+// -----------------------------------------------------------------------------
+TUint32* CVtImageIYUV::LineAddress( TInt aLine ) const
+    {
+    if( aLine < 0 )
+        {
+        aLine = 0;
+        }
+    else if( aLine > Size().iHeight - 1 )
+        {
+        aLine = Size().iHeight - 1;
+        }
+    return reinterpret_cast< TUint32* >( 
+        reinterpret_cast< TUint8* >( DataAddress() ) + BytesPerRow() * aLine );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::ImageSize() const
+// -----------------------------------------------------------------------------
+TInt CVtImageIYUV::ImageSize() const
+    {
+    return UVPlaneWidth() * UVPlaneHeight() * 2 + BytesPerRow() * iSize.iHeight;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::CVtImageIYUV( const TSize& aSize )
+// -----------------------------------------------------------------------------
+CVtImageIYUV::CVtImageIYUV( const TSize& aSize )
+: CVtImage( CVtImage::EVtImageIYUV ), iSize( aSize ), iPtrImage( 0, 0 )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::ConstructL( const TDesC8* aImage )
+// -----------------------------------------------------------------------------
+void CVtImageIYUV::ConstructL( const TDesC8* aImage )
+    {   
+    ValidateSizeL( iSize );
+    if( !aImage )
+        {
+        // empty image
+        TInt size( ImageSize() );
+        iImage = HBufC8::NewL( size );
+        iImage->Des().SetLength( size );
+        }
+    else
+        {
+        // prefilled image
+        CheckDescriptorSizeL( *aImage );
+        iImage = aImage->AllocL();
+        }
+    // set ptr descriptor
+    iPtrImage.Set( iImage->Des() );
+    // set YUV pointers
+    SetYUVPointers();
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::ValidateSizeL( const TSize& aSize )
+// -----------------------------------------------------------------------------
+void CVtImageIYUV::ValidateSizeL( const TSize& aSize )
+    {
+    if( ( aSize.iWidth & 1 ) || ( aSize.iHeight & 1 ) )
+        {
+        User::Leave( KErrNotSupported );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::CheckDescriptorSizeL( const TDesC8& aImage )
+// -----------------------------------------------------------------------------
+void CVtImageIYUV::CheckDescriptorSizeL( const TDesC8& aImage )
+    {
+    if( aImage.Size() != ImageSize() )
+        {
+        User::Leave( KErrArgument );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageIYUV::SetYUVPointers()
+// -----------------------------------------------------------------------------
+void CVtImageIYUV::SetYUVPointers()
+    {
+    iY = const_cast< TUint8* >( iPtrImage.Ptr() );
+    iU = iY + BytesPerRow() * iSize.iHeight;
+    iV = iU + UVPlaneWidth() * UVPlaneHeight();
+    }
+
+// End of File  
+
+