1 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // Graphics Resource - kernel extension

    15 //

    16 

    17 #ifndef SGEXTENSION_H

    18 #define SGEXTENSION_H

    19 

    20 #include <kernel/kernel.h>

    21 #include <sgresource/sgcommon.h>

    22 

    23 class DSgResource: public DBase

    24 	{

    25 public:

    26 	virtual TInt Open() = 0;

    27 	virtual void Close() = 0;

    28 	virtual TUint64 Id() const = 0;

    29 	virtual TUint32 Attributes() const = 0;

    30 	virtual TInt GetMetaData(TDes8& aMetaData) const = 0;

    31 	virtual DChunk* DataChunk() const = 0;

    32 	virtual TInt DataSize() const = 0;

    33 	inline static TInt Compare(const TUint64* aId, const DSgResource& aResource);

    34 	inline static TInt Compare(const DSgResource& aResource1, const DSgResource& aResource2);

    35 	};

    36 

    37 class SgExtension

    38 	{

    39 public:

    40 	IMPORT_C static TVersion Version();

    41 	IMPORT_C static TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, DSgResource*& aResource);

    42 	IMPORT_C static TInt FindAndOpenResource(TUint64 aId, DSgResource*& aResource);

    43 	IMPORT_C static TInt GlobalResourceCount();

    44 	IMPORT_C static TInt GlobalGraphicsMemoryUsed();

    45 	};

    46 

    47 #include <sgresource/sgextension.inl>

    48 

    49 #endif // SGEXTENSION_H