graphicscompositionref/surfacemgrcommon/inc/syborgvirtualhwmemory.h
changeset 0 91fe342bd9c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicscompositionref/surfacemgrcommon/inc/syborgvirtualhwmemory.h	Mon Aug 16 10:28:15 2010 +0100
@@ -0,0 +1,64 @@
+// Copyright (c) 2006-2010 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:
+// Syborg Virtual Hardware Memory implementation
+
+/**
+ @file
+ @internalTechnology
+ @prototype
+*/
+
+#ifndef __SYBORGVIRTUALHWMEMORY_H__
+#define __SYBORGVIRTUALHWMEMORY_H__
+
+#include <klib.h>
+#include <graphics/virtualvideohwinterface.h>
+#include <graphics/guestvideodriverinterfaceconstants.h>
+
+/**
+
+Very simple memory manager for platsim virtual HW memory
+
+*/
+class DVirtualHWMemoryManager: public DBase
+    {
+    struct TAllocatedCell
+        {
+        TAllocatedCell( TInt aSize, TUint32 aBase ):
+            iSize( aSize ),
+            iBase( aBase ),
+            iNext( NULL )
+            {
+            }
+        
+        TInt iSize;
+        TUint32 iBase;
+        TAllocatedCell* iNext;
+        };
+    
+public:
+    DVirtualHWMemoryManager(TUint32 aBase, TInt aMaxSize);
+    
+    TUint32 Allocate(TInt aSize);
+    
+    void Deallocate(const TUint32 aPhysicalAddress);
+
+    ~DVirtualHWMemoryManager();
+
+private:
+    TAllocatedCell iRoot;
+    TAllocatedCell iLast;
+    };
+
+#endif