diff -r bbf46f59e123 -r 25ffed67c7ef windowing/windowserver/nga/CLIENT/CLIENT.H
--- a/windowing/windowserver/nga/CLIENT/CLIENT.H	Tue Aug 31 16:31:06 2010 +0300
+++ b/windowing/windowserver/nga/CLIENT/CLIENT.H	Wed Sep 01 12:39:21 2010 +0100
@@ -1,4 +1,4 @@
-// Copyright (c) 1999-2010 Nokia Corporation and/or its subsidiary(-ies).
+// Copyright (c) 1999-2009 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"
@@ -54,10 +54,9 @@
 	void SetMaxBufferSizeL(TInt aMaxBufSize);
 	TInt Flush(const TIpcArgs* aIpcArgs=NULL,TBool aRequestFinish=EFalse);
 	TBool SetAutoFlush(TBool aState);
-	void Write(TInt aHandle, TUint aOpcode, const TAny *aData, TInt aLength, const TAny *aData2, TInt aLength2, const TIpcArgs* aIpcArgs=NULL);
-	void Write(TInt aHandle, TUint aOpcode, const TAny *aData, TInt aLength, const TIpcArgs* aIpcArgs=NULL);
+	void Write(TInt handle,TUint opcode,const TAny *pData, TInt length,const TAny *pData2, TInt length2);
+	void Write(TInt handle,TUint opcode,const TAny *buf, TInt bufLen);
 	void Write(TInt handle,TUint opcode);
-	void AppendData(const TAny *aData, TInt aLength, TBool aFinished);
 	TInt WriteReply(TInt handle,TUint opcode, const TIpcArgs* aIpcArgs=NULL);
 	TInt WriteReply(TInt handle,TUint opcode,const TAny *buf, TInt bufLen, const TIpcArgs* aIpcArgs=NULL);
 	TInt WriteReply(TInt handle,TUint opcode,const TAny *buf, TInt bufLen,const TAny *buf2, TInt buflen2, const TIpcArgs* aIpcArgs=NULL);
@@ -85,6 +84,13 @@
 	inline void RefreshWindowSizeCache(TInt aHandle, const TSize& aNewSize);
 	inline TInt CachedWindowSize(TInt aHandle, TSize& aSize);
 	inline void DestroyWindowSizeCacheEntry(TInt aHandle);	
+#ifdef SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
+	void EnableWindowNativeSizeCacheL();
+	inline TBool WindowNativeSizeCacheEnabled() const;
+	inline TInt SetWindowNativeSize(TInt aHandle, const TSize& aNativeSize);
+	inline TInt WindowNativeSize(TInt aHandle, TSize& aSize);
+	inline void DestroyWindowNativeSizeCacheEntry(TInt aHandle);
+#endif // SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
     
 private:
 	TInt DoWrite(TInt aHandle, TUint aOpcode, TBool aFlush, const TIpcArgs* aIpcArgs, const TAny* aData1=NULL, TInt aLength1=0, const TAny* aData2=NULL, TInt aLength2=0);
@@ -102,9 +108,6 @@
 	TInt iPreviousHandle;
 	TInt iBufSize;				// current buffer size, DoWrite can expand this up to iMaxBufize
 	TInt iMaxBufSize;			// maximum buffer size, set by SetBufferSizeL or SetMaxBufferSizeL
-#if defined(_DEBUG)
-	TInt iAppendDataLength;
-#endif
 private:		//Added here as adding it to RWsSession breaks BC.
 	TInt iDirectAcessCount;
 	RArray<TInt> iBitmapArray;
@@ -120,6 +123,9 @@
 	    };
 	
 	RHashMap<TInt, TWindowSizeCacheEntry>* iWindowSizeCache;
+#ifdef SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
+	RHashMap<TInt, TWindowSizeCacheEntry>* iWindowNativeSizeCache;
+#endif // SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
 	};
 
 
@@ -189,5 +195,45 @@
     __ASSERT_DEBUG(err == KErrNone || err == KErrNotFound, Assert(EW32AssertWindowSizeCacheFailure));
     }
 
+#ifdef SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
+inline TBool RWsBuffer::WindowNativeSizeCacheEnabled() const
+    {
+    return iWindowNativeSizeCache ? ETrue : EFalse;
+    }
+
+inline TInt RWsBuffer::SetWindowNativeSize(TInt aHandle, const TSize& aNativeSize)
+    {
+    __ASSERT_ALWAYS(iWindowNativeSizeCache != NULL, Assert(EW32AssertWindowNativeSizeCacheFailure));
+    RWsBuffer::TWindowSizeCacheEntry* entry = iWindowNativeSizeCache->Find(aHandle);
+	__ASSERT_ALWAYS(!entry, Assert(EW32AssertWindowNativeSizeCacheFailure));
+    return iWindowNativeSizeCache->Insert(aHandle, RWsBuffer::TWindowSizeCacheEntry(aNativeSize));
+    }
+
+inline TInt RWsBuffer::WindowNativeSize(TInt aHandle, TSize& aSize)
+    {
+    __ASSERT_ALWAYS(iWindowNativeSizeCache != NULL, Assert(EW32AssertWindowNativeSizeCacheFailure));
+    RWsBuffer::TWindowSizeCacheEntry* entry = iWindowNativeSizeCache->Find(aHandle);
+    if (entry)
+        {
+        aSize = entry->iSize;
+        return KErrNone;
+        }
+    else
+        {
+        return KErrNotFound;
+        }
+    }
+
+inline void RWsBuffer::DestroyWindowNativeSizeCacheEntry(TInt aHandle)
+    {
+    __ASSERT_ALWAYS(iWindowNativeSizeCache != NULL, Assert(EW32AssertWindowNativeSizeCacheFailure));
+    TInt err = iWindowNativeSizeCache->Remove(aHandle);
+    // If there is a window size cache entry, then err == KErrNone.
+    // Otherwise, there isn't a size cache entry, and err == KErrNotFound.
+    __ASSERT_DEBUG(err == KErrNone || err == KErrNotFound, Assert(EW32AssertWindowNativeSizeCacheFailure));
+    }
+
+#endif // SYMBIAN_GRAPHICS_FIXNATIVEORIENTATION
+
 
 #endif