sl@0: // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Graphics Resource - kernel extension internal functionality
sl@0: //
sl@0: 
sl@0: #ifndef SGEXTENSIONIMPL_H
sl@0: #define SGEXTENSIONIMPL_H
sl@0: 
sl@0: #include <sgresource/sgextension.h>
sl@0: 
sl@0: NONSHARABLE_CLASS(DSgExtensionImpl): public DBase
sl@0: 	{
sl@0: public:
sl@0: 	TInt Construct();
sl@0: 	TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, DSgResource*& aResource);
sl@0: 	TInt FindAndOpenResource(TUint64 aId, DSgResource*& aResource);
sl@0: 	void DeleteResource(DSgResource* aResource);
sl@0: 	TInt GlobalResourceCount() const;
sl@0: 	TInt GlobalGraphicsMemoryUsed() const;
sl@0: private:
sl@0: 	DMutex* iMutex;
sl@0: 	TUint64 iLastResourceId;
sl@0: 	RPointerArray<DSgResource> iResources;
sl@0: 	};
sl@0: 
sl@0: NONSHARABLE_CLASS(DSgResourceImpl): public DSgResource
sl@0: 	{
sl@0: public:
sl@0: 	DSgResourceImpl(DSgExtensionImpl& aExtensionImpl, TUint64 aId, TUint32 aAttribs,
sl@0: 	                const TDesC8& aMetaData, DChunk* aDataChunk, TInt aDataSize);
sl@0: 	// From DSgResource
sl@0: 	TInt Open();
sl@0: 	void Close();
sl@0: 	TUint64 Id() const;
sl@0: 	TUint32 Attributes() const;
sl@0: 	TInt GetMetaData(TDes8& aMetaData) const;
sl@0: 	DChunk* DataChunk() const;
sl@0: 	TInt DataSize() const;
sl@0: private:
sl@0: 	~DSgResourceImpl();
sl@0: private:
sl@0: 	DSgExtensionImpl& iExtensionImpl;
sl@0: 	TInt iRefCount;
sl@0: 	TUint64 iId;
sl@0: 	TUint32 iAttributes;
sl@0: 	TInt iMetaDataSize;
sl@0: 	DChunk* iDataChunk;
sl@0: 	TInt iDataSize;
sl@0: 	};
sl@0: 
sl@0: #endif // SGEXTENSIONIMPL_H