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// Copyright (c) 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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// Graphics Resource - kernel extension internal functionality
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//
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#ifndef SGEXTENSIONIMPL_H
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#define SGEXTENSIONIMPL_H
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#include <sgresource/sgextension.h>
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NONSHARABLE_CLASS(DSgExtensionImpl): public DBase
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{
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public:
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TInt Construct();
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TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, DSgResource*& aResource);
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TInt FindAndOpenResource(TUint64 aId, DSgResource*& aResource);
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void DeleteResource(DSgResource* aResource);
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TInt GlobalResourceCount() const;
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TInt GlobalGraphicsMemoryUsed() const;
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private:
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DMutex* iMutex;
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TUint64 iLastResourceId;
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RPointerArray<DSgResource> iResources;
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};
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NONSHARABLE_CLASS(DSgResourceImpl): public DSgResource
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{
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public:
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DSgResourceImpl(DSgExtensionImpl& aExtensionImpl, TUint64 aId, TUint32 aAttribs,
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const TDesC8& aMetaData, DChunk* aDataChunk, TInt aDataSize);
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// From DSgResource
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TInt Open();
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void Close();
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TUint64 Id() const;
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TUint32 Attributes() const;
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TInt GetMetaData(TDes8& aMetaData) const;
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DChunk* DataChunk() const;
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TInt DataSize() const;
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private:
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~DSgResourceImpl();
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private:
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DSgExtensionImpl& iExtensionImpl;
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TInt iRefCount;
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TUint64 iId;
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TUint32 iAttributes;
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TInt iMetaDataSize;
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DChunk* iDataChunk;
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TInt iDataSize;
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};
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#endif // SGEXTENSIONIMPL_H
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