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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#ifndef CONFIGHELPER_H_
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#define CONFIGHELPER_H_
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#include <e32def.h>
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#include <EGL/egl.h>
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class CFbsBitmap;
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/**
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Utility class to help in choosing an EGL config.
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@internalComponent Reference implementation.
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*/
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NONSHARABLE_CLASS(TConfigHelper)
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{
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/**
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Enumeration of EGL Config Config Attribute indices into KSurfaceAttribs.
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*/
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enum
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{
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EEglBufferSize = 0,
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EEglBufferType = 2,
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EEglRedSize = 4,
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EEglGreenSize = 6,
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EEglBlueSize = 8,
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EEglAlphaSize = 10,
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EEglLuminanceSize = 12,
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EEglSurfaceType = 14,
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EEglRenderableType = 16,
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ELast,
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};
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/**
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Enumeration of EGL Config indices into KSurfaceAttribs.
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*/
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enum
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{
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EPixmapAttribsColor64K,
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EPixmapAttribsColor16MAP,
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EPixmapAttribsColor16MU,
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EPixmapAttribsColor16MA,
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EPixmapAttribsLuminance8L,
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EPixmapAttribsLuminance1L
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};
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public:
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static TInt GetSuitablePixmapConfigIndex(EGLDisplay aDisplay, EGLConfig *aConfigs, TInt aNumConfigs, TInt aColorAttrib);
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static TInt MatchPixelType(TInt aPixelType);
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static TInt GetConfig(TInt aAttributeArrayIndex, EGLConfig& aResult);
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static TInt GetConfigForFbsBitmap(const CFbsBitmap& aBitmap, EGLConfig& aResult);
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#ifdef _DEBUG
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static void SupportedSurfacePixelFormatsL();
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#endif
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private:
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static TBool EglAttributeMatches(EGLint aAttribute, TInt aExpected, TInt aActual);
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public:
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static const EGLint KSurfaceAttribs[][19];
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};
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#endif /*CONFIGHELPER_H_*/
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