Symaptic: os/graphics/graphicsresourceservices/graphicsresourceimplementation/inc/sgdeviceimpl.h@bde4ae8d615e

     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 - logical device driver internal functionality

    15 //

    17 #ifndef SGDEVICEIMPL_H

    18 #define SGDEVICEIMPL_H

    20 #include <kernel/kernel.h>

    21 #include <sgresource/sgdevice.h>

    23 enum TSgDevicePanicReason

    24 	{

    25 	ESgPanicMetaDataSizeTooBig = 1,

    26 	ESgPanicDataSizeNegative = 2

    27 	};

    29 void Panic(TSgDevicePanicReason aReason);

    31 class DSgDevice: public DLogicalDevice

    32 	{

    33 public:

    34 	// From DLogicalDevice

    35 	TInt Install();

    36 	void GetCaps(TDes8& aDes) const;

    37 	TInt Create(DLogicalChannelBase*& aChannel);

    38 	};

    40 class DSgResource;

    42 class DSgChannel: public DLogicalChannelBase

    43 	{

    44 public:

    45 	~DSgChannel();

    46 	// From DLogicalChannelBase

    47 	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVersion);

    48 	TInt Request(TInt aFunction, TAny* a1, TAny* a2);

    49 private:

    50 	TInt CreateResource(TUint32 aAttribs, const TDesC8& aMetaData, TInt aDataSize, TUint64& aId);

    51 	TInt OpenResource(TUint64 aId);

    52 	TInt CloseResource(TUint64 aId);

    53 	TUint32 ResourceAttributes(TUint64 aId) const;

    54 	TInt GetResourceMetaData(TUint64 aId, TDes8& aMetaData) const;

    55 	TAny* ResourceDataAddress(TUint64 aId) const;

    56 	TInt ResourceDataSize(TUint64 aId) const;

    57 	TInt GlobalResourceCount() const;

    58 	TInt LocalGraphicsMemoryUsed() const;

    59 	TInt GlobalGraphicsMemoryUsed() const;

    60 private:

    61 	class TResourceListItem

    62 		{

    63 	public:

    64 		TResourceListItem(DSgResource* aResource, TInt aChunkHandle);

    65 	public:

    66 		DSgResource* iResource;

    67 		TInt iChunkHandle;

    68 		};

    69 private:

    70 	static TInt Compare(const TUint64* aId, const TResourceListItem& aResourceListItem);

    71 	static TInt Compare(const TResourceListItem& aResourceListItem1, const TResourceListItem& aResourceListItem2);

    72 private:

    73 	DMutex* iMutex;

    74 	RArray<TResourceListItem> iResources;

    75 	};

    77 #endif // SGDEVICEIMPL_H

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--