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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 - logical device driver internal functionality
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//
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#ifndef SGDEVICEIMPL_H
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#define SGDEVICEIMPL_H
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#include <kernel/kernel.h>
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#include <sgresource/sgdevice.h>
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enum TSgDevicePanicReason
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{
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ESgPanicMetaDataSizeTooBig = 1,
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ESgPanicDataSizeNegative = 2
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};
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void Panic(TSgDevicePanicReason aReason);
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class DSgDevice: public DLogicalDevice
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{
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public:
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// From DLogicalDevice
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TInt Install();
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void GetCaps(TDes8& aDes) const;
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TInt Create(DLogicalChannelBase*& aChannel);
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};
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class DSgResource;
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class DSgChannel: public DLogicalChannelBase
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{
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public:
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~DSgChannel();
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// From DLogicalChannelBase
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TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVersion);
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TInt Request(TInt aFunction, TAny* a1, TAny* a2);
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private:
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TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, TUint64& aId);
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TInt OpenResource(TUint64 aId);
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TInt CloseResource(TUint64 aId);
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TUint32 ResourceAttributes(TUint64 aId) const;
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TInt GetResourceMetaData(TUint64 aId, TDes8& aMetaData) const;
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TAny* ResourceDataAddress(TUint64 aId) const;
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TInt ResourceDataSize(TUint64 aId) const;
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TInt GlobalResourceCount() const;
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TInt LocalGraphicsMemoryUsed() const;
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TInt GlobalGraphicsMemoryUsed() const;
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private:
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class TResourceListItem
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{
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public:
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TResourceListItem(DSgResource* aResource, TInt aChunkHandle);
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public:
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DSgResource* iResource;
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TInt iChunkHandle;
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};
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private:
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static TInt Compare(const TUint64* aId, const TResourceListItem& aResourceListItem);
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static TInt Compare(const TResourceListItem& aResourceListItem1, const TResourceListItem& aResourceListItem2);
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private:
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DMutex* iMutex;
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RArray<TResourceListItem> iResources;
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};
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#endif // SGDEVICEIMPL_H
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