// Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).

 //

 // Permission is hereby granted, free of charge, to any person obtaining a

 // copy of this software and/or associated documentation files (the

 // "Materials"), to deal in the Materials without restriction, including

 // without limitation the rights to use, copy, modify, merge, publish,

 // distribute, sublicense, and/or sell copies of the Materials, and to

 // permit persons to whom the Materials are furnished to do so, subject to

 // the following conditions:

 //

 // The above copyright notice and this permission notice shall be included

 // in all copies or substantial portions of the Materials.

 //

 // THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

 // MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.

 // 

 // Description:

 // Display Screen Interface implementation for Display Channel

 // 

 //

 #ifndef OPENWFC_RI_DISPLAYCHANNEL_H

 #define OPENWFC_RI_DISPLAYCHANNEL_H

 #include <WF/openwfc_ri_display.h>

 #include <dispchannel.h>

 NONSHARABLE_CLASS(COpenWFC_RI_DisplayChannel) : public COpenWFC_RI_Display

     {

 public:

     ~COpenWFC_RI_DisplayChannel();

     static COpenWFC_RI_DisplayChannel* NewL(TUint aScreen);

 public:

     TInt GetAttribute(TInt aAttributeId, TAny* aAttribute, TInt aAttributeSize);

     TInt SetAttribute(TInt aAttributeId, TAny* aAttribute, TInt aAttributeSize);

     TInt CommitAttribute();

     TInt SetLayerSurface(TInt aLayer, SymbianStreamType aStream,TInt* aNonTrivialAttribs);

     TInt UpdateDisplay();

     TInt SetTopLayerSurface(SymbianStreamType aStream,TInt* aNonTrivialAttribs);

 private:    

     COpenWFC_RI_DisplayChannel(TUint aScreen);

     void ConstructL();

 private:

     struct TBufferAddress

         {

         RChunk  iChunk;

         TInt    iOffset;

         TUint8* iAddress;

         };

 private:

     TUint iScreenNumber;

     TInt iRotationOffset;

     RDisplayChannel::TDisplayRotation iDefaultRotation;

     TScreenGeometryAttribute iScreenInfo;

     RArray <TBufferAddress*> iCompositionBuffer;

     RDisplayChannel iDispChan;

     TScreenRotation iNewRotation;

     SymbianStreamType iCurrentSceneStream;

 public:

     static const TInt32 KImplementationVersion = 0x00000001;

     };

 #endif // OPENWFC_RI_DISPLAYCHANNEL_H