--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicshwdrivers/surfacemgr/src/surfacemanager_dev.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,169 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+/**
+ @file
+ @publishedPartner
+ @prototype
+*/
+
+#ifndef __SURFACEMANAGER_DEV_H__
+#define __SURFACEMANAGER_DEV_H__
+
+#include <graphics/surface.h>
+#include "surfacemanagerdriver.h"
+
+#if 0
+#define TRACE(x) x
+#else
+#define TRACE(x)
+#endif
+
+/** Maximum number of HintPairs per surface */
+const TInt KMaxHintsPerSurface = 16;
+
+/** Maximum number of elements in the table. This value must be a power of 2 */
+#define KMaxLists 16
+
+/**
+  Logical Device (factory class) for Surface manager
+*/
+class DSurfaceManagerFactory : public DLogicalDevice
+	{
+public:
+	DSurfaceManagerFactory();
+	TInt Install();
+	void GetCaps(TDes8& aDes) const;
+	TInt Create(DLogicalChannelBase*& aChannel);
+	};
+
+
+/**
+  Logical Channel class for SurfaceManager
+*/
+class DSurfaceManagerChannel : public DLogicalChannelBase
+	{
+public:
+	DSurfaceManagerChannel();
+	~DSurfaceManagerChannel();
+
+	// Inherited from DLogicalChannelBase
+	TInt DoCreate(TInt aUnit, const TDesC8* aInfo, const TVersion& aVer);
+	TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
+private:
+	// Implementation for the different kinds of messages sent through RBusLogicalChannel
+	TInt DoControl(TInt aFunction, TAny* a1, TAny* a2);
+
+private:
+	DProcess* iOwner;
+	};
+
+
+/**
+Class to hold a reference count and process pointer. 
+Each surface has a linked list of these owning processes.
+The surface manager has a linked list of these to track connections.
+@internalTechnology
+*/
+class TProcessListItem
+	{
+public:
+	TProcessListItem* iNext;	//pointer to next one in list
+	DProcess* iOwningProcess;	//pointer to the process object which is being reference counted
+	TInt iCount;				//reference count
+	};
+	
+
+/**
+Class to hold the information about a surface.
+Each surface has a linked list of owners.  The surfaces are arranged in a linked list,
+with these objects being elements in the list.
+@internalTechnology
+*/
+class TSurface					//one of these per surface
+	{
+public:
+	TSurface* iNext;			//singly linked list, points to next surface
+	TSurfaceId	iId;			//the surface id
+	TSize iSize;				//pixel width/height
+	TInt iBuffers;				//number of buffers
+	TUidPixelFormat iPixelFormat;			//pixel format
+	TInt iStride;				//offset from start of one line to the next, in bytes
+	TInt iOffsetToFirstBuffer;	//offset between the start of the surface memory and the start of the first pixel buffer
+	TInt iOffsetBetweenBuffers;	//offset between pixel buffers
+	TInt  iAlignment;			//byte alignment of the pixel buffers
+	TBool iContiguous;			//if it is in contiguous physical memory
+	DChunk* iChunk;				//ptr to the shared chunk
+	RSurfaceManager::TCacheAttribute iCacheAttrib;			//Caching attribute to create chunks memory
+	RSurfaceManager::THintPair iSurfaceHints[KMaxHintsPerSurface];	//Arbitrary key-value pairs associated with a surface
+	TBool iMappable;			//Is the Surface Mappable
+	TProcessListItem* iOwners;	//owner list. Singly linked list, points to next surface owner
+
+public:	
+	TProcessListItem* ProcessOwnerInfo(const DProcess* aProcess);
+	};
+	
+
+
+
+/**
+Surface manager extension object.
+There is one static instance of this in the kernel extension.
+@internalTechnology
+*/
+class DSurfaceManager : public DBase
+	{
+public:
+	TInt CreateSurface(const TDesC8* aConfig, TSurfaceId* aId);
+	TInt SurfaceInfo(const TSurfaceId* aId, TDes8* aInfo);
+	TInt OpenSurface(const TSurfaceId* aId);
+	TInt CloseSurface(const TSurfaceId* aId);
+	TInt MapSurface(const TSurfaceId* aId);
+	TInt AddConnection(const DProcess* iProcess);
+	void RemoveConnection(const DProcess* iProcess);
+	TInt CreateSurface(RSurfaceManagerDriver::TDeviceParam* aParam, TInt aChunkHandle);
+	TInt SynchronizeCache(RSurfaceManagerDriver::TDeviceParam* aId, RSurfaceManager::TSyncOperation aOperation);
+	TInt GetSurfaceHint(const TSurfaceId* aSurfaceId, RSurfaceManager::THintPair* aHintPair);
+	TInt SetSurfaceHint(const TSurfaceId* aSurfaceId, const RSurfaceManager::THintPair* aHintPair);
+	TInt AddSurfaceHint(const TSurfaceId* aSurfaceId, const RSurfaceManager::THintPair* aHintPair);
+	TInt GetBufferOffset(RSurfaceManagerDriver::TDeviceParam* aParam,TUint* aOffset);
+	TInt GetSurfaceManagerAttrib(RSurfaceManager::TSurfaceManagerAttrib* aAttrib,TInt* aValue);
+private:
+	void GenerateSurfaceId(TSurfaceId& aId);
+	TInt  CreateSurfaceChunk(const RSurfaceManager::TSurfaceCreationAttributes& attribs);
+	TInt ValidateAndCalculateChunkSize(RSurfaceManager::TSurfaceCreationAttributes& aAttribs, TInt& aOffset, 
+			TUint& aActualBufferSize, const TBool aNewChunk = EFalse);
+	TInt ValidatePhysicalMemory(DChunk* aChunk, const RSurfaceManager::TSurfaceCreationAttributes& aAttribs, 
+			TUint aBuffersize, TUint32& aMapAttr, TBool &aIsContiguous); 
+	TSurface* FindSurfaceById(const TSurfaceId& aId);
+	void CloseSurfaceHandlesForProcess(const DProcess* iProcess);
+	TProcessListItem* FindConnectedProcess(const DProcess* aProcess);
+	TInt FindHintKey(const RSurfaceManager::THintPair* aHints, TUint32 aKey) const;
+	TBool SortHints(RSurfaceManager::THintPair* aHints, TInt aNumberOfHints) const;
+	TInt InsertHintKey(RSurfaceManager::THintPair* aHints, const RSurfaceManager::THintPair& aHintPair) const;
+
+private:
+	TSurface* iSurfacesIndex[KMaxLists]; 			// A table with elements pointing to the head of each singly linked list
+	NFastMutex iMutex;						// Mutex to protect access to surface lists
+	TProcessListItem* iConnectedProcesses;	//reference counted list of processes connected to the driver
+	};
+
+
+#endif
+
+
+
+
+