1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   

    15 *

    16 */

    17 

    18 

    19 

    20 #ifndef HUIFXRENDERBUFFER_H_

    21 #define HUIFXRENDERBUFFER_H_

    22 

    23 #include "HuiFxConstants.h"

    24 #include <uiacceltk/HuiGc.h>

    25 

    26 class CHuiFxRenderbuffer: public CBase

    27     {

    28 protected:

    29     IMPORT_C CHuiFxRenderbuffer();

    30     // TODO: luminance-only render buffers

    31     // TODO: optional alpha channel?

    32     IMPORT_C void ConstructL(const TSize& aSize, TRenderBufferType aBufferType);

    33 public:

    34     IMPORT_C virtual ~CHuiFxRenderbuffer();

    35 

    36     virtual CHuiGc& BindAsRenderTarget() = 0;

    37     virtual void BindAsTexture(THuiFxRenderbufferUsage aUsage) = 0;

    38     virtual void UnbindAsRenderTarget() = 0;

    39     virtual void UnbindAsTexture() = 0;

    40     

    41     virtual void PrepareForReuse(const TSize& aReusedSize) = 0;

    42 

    43     IMPORT_C const TSize& Size() const;

    44     IMPORT_C const TRenderBufferType& BufferType() const;

    45     

    46     // Position relative to screen coordinates

    47     IMPORT_C void SetPosition(TPoint aPosition);

    48     IMPORT_C const TPoint& Position() const;

    49     

    50     // Background is read (or not) from current surface when PrepareForReuse is called.

    51     IMPORT_C void EnableBackground(TBool aEnable); 

    52         

    53 protected:    

    54     TSize                iSize;

    55     TRenderBufferType    iType;

    56     TPoint               iPosition;

    57     TBool                iBackgroundEnabled;

    58     };

    59 

    60 #endif /*HUIFXRENDERBUFFER_H_*/