/*
* Copyright (c) 2006-2008 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: Definition of CHuiVg10TextureProcessor.
* CHuiVg10TextureProcessor is a concrete implementation of
* a texture processor for OpenVG 1.0.
*
*/
#ifndef __HUIVG10TEXTUREPROCESSOR_H__
#define __HUIVG10TEXTUREPROCESSOR_H__
#include "uiacceltk/HuiTextureProcessor.h"
/* Forward declarations. */
class CHuiVg10PBufferSurface;
/**
* Texture processor implementation for OpenVG.
*/
NONSHARABLE_CLASS(CHuiVg10TextureProcessor) : public CHuiTextureProcessor
{
public:
/* Constructors and destructor. */
/**
* Constructs a new texture manager instance.
*/
static CHuiVg10TextureProcessor* NewL(CHuiEnv& aEnv);
/**
* Constructs a new texture manager instance and leaves it on
* the cleanup stack.
*/
static CHuiVg10TextureProcessor* NewLC(CHuiEnv& aEnv);
/**
* Destructor.
*/
virtual ~CHuiVg10TextureProcessor();
/* Methods. */
virtual void BlurL(const THuiTextureHandle& aSrc, THuiTextureHandle& aDest,
TInt aFilterSize, TInt aFlag);
virtual void BlurL(const THuiTextureHandle& aSrc, THuiTextureHandle& aDest,
const TSize& aPreferredSize,
TInt aFilterSize, TInt aFlag);
virtual void BlurSegmentedL(const MHuiSegmentedTexture& aSrc,
THuiTextureHandle& aDest,
TInt aFilterSize, TInt aFlags);
virtual void BlurSegmentedL(const MHuiSegmentedTexture& aSrc,
THuiTextureHandle& aDest,
const TSize& aPreferredSize,
TInt aFilterSize, TInt aFlags);
protected:
/* Constructors. */
/**
* Constructor.
*/
CHuiVg10TextureProcessor(CHuiEnv& aEnv);
/**
* Second-phase constructor.
*/
void ConstructL();
/* Methods. */
/**
* Renders a blurred texture into the processing buffer. BlurL() calls this
* one or more times to produce the final blurred result.
*
* @param aBlurConfigPtr Pointer to a THuiBlurConfig struct, which holds
* the parameters of the blurring filter. Note that
* this is an internal struct defined only in the
* implementation of CHuiVg10TextureProcessor.
* @param aSrc Source texture.
* @param aDestTextureName Name of the OpenVG texture where the blurred
* result will be stored.
* @param aFlags The same flags that were used in the call to BlurL().
*/
void DrawBlurred(const TAny* aBlurConfigPtr,
const THuiTextureHandle& aSrc,
TUint aDestTextureName,
TInt aFlags);
/**
* Combines two textures so that the end result is an average of both.
* The resulting texture uses the same size as the source textures.
* Used as part of BlurL() to produce a higher-quality blurring effect.
*
* @param aSrcTextureName1 Name of the first source texture.
* @param aSrcTextureName2 Name of the second source texture.
* @param aDestTextureName Name of the destination texture.
* @param aSize Size of all the three textures.
* @param aFlags The same flags that were used in the call to BlurL().
*/
void DrawAverage(TUint aSrcTextureName1,
TUint aSrcTextureName2,
TUint aDestTextureName,
const TSize& aSize,
TInt aFlags);
void Release();
void RestoreL();
private:
};
#endif // __HUIVG10TEXTUREPROCESSOR_H__