--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omxilcomp/omxilgeneric/filesource/inc/omxilfilesourceprocessingfunction.h	Thu Sep 02 20:13:57 2010 +0300
@@ -0,0 +1,200 @@
+// Copyright (c) 2008-2009 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
+ * @internalTechnology
+ */
+
+#ifndef OMXILFILESOURCEPROCESSINGFUNCTION_H
+#define OMXILFILESOURCEPROCESSINGFUNCTION_H
+
+#include <openmax/il/common/omxilprocessingfunction.h>
+#include <e32base.h>
+#include <e32msgqueue.h>
+#include <f32file.h>
+#include <openmax/il/khronos/v1_x/OMX_Component.h>
+
+class COmxILFileSourceProcessingFunction : public COmxILProcessingFunction
+	{
+public:
+	static COmxILFileSourceProcessingFunction* NewL(MOmxILCallbackNotificationIf& aCallbacks);
+	~COmxILFileSourceProcessingFunction();
+
+	OMX_ERRORTYPE StateTransitionIndication(TStateIndex aNewState);
+	OMX_ERRORTYPE BufferFlushingIndication(TUint32 aPortIndex, OMX_DIRTYPE aDirection);
+	OMX_ERRORTYPE ParamIndication(OMX_INDEXTYPE aParamIndex, const TAny* apComponentParameterStructure);
+	OMX_ERRORTYPE ConfigIndication(OMX_INDEXTYPE aConfigIndex, const TAny* apComponentConfigStructure);
+	OMX_ERRORTYPE BufferIndication(OMX_BUFFERHEADERTYPE* apBufferHeader, OMX_DIRTYPE aDirection);
+	OMX_BOOL BufferRemovalIndication(OMX_BUFFERHEADERTYPE* apBufferHeader, OMX_DIRTYPE aDirection);
+	
+	MOmxILCallbackNotificationIf& GetCallbacks();
+
+	/** can return NULL if parameter has not been set. */
+	const HBufC* FileName() const;
+	const HBufC8* Uri() const;
+
+private:
+	COmxILFileSourceProcessingFunction(MOmxILCallbackNotificationIf& aCallbacks);
+	void ConstructL();
+	
+	void InitFileAndUriL();
+	OMX_ERRORTYPE SetFileName(const OMX_PARAM_CONTENTURITYPE* aContentUriType);
+			
+private:
+	RPointerArray<OMX_BUFFERHEADERTYPE> iBuffersToFill;
+	OMX_STATETYPE iState;
+	HBufC8* ipUri;
+	HBufC* ipFileName;
+
+private:
+	class CPFHelper;
+	class CBufferArrivalHandler;
+	
+	class CFileSourceAccess : public CActive
+		{
+	friend class CPFHelper;
+	public:
+		static CFileSourceAccess* NewL(COmxILFileSourceProcessingFunction& aParent);
+		~CFileSourceAccess();
+
+		// from CActive
+		void RunL();
+		void DoCancel();
+
+		TInt Execute();
+		void Pause();
+		void Stop();
+		void Idle();
+		
+		void CancelDataTransfer();
+		
+		TInt ProcessNextBuffer();
+
+	private:
+		CFileSourceAccess(COmxILFileSourceProcessingFunction& aParent);
+		void ConstructL();
+		
+	private:
+		COmxILFileSourceProcessingFunction& iParent;
+		OMX_BUFFERHEADERTYPE* iCurrentBuffer;
+		
+		RFs iFs;
+		RFile iFileHandle;
+		TInt iBufferOffset;
+		TPtr8 iReadBuffer;
+		TBool iEOSFlag; // Notifies that end of file has been reached.
+		TInt iEOSBufferNotificationCount; // counts the number of responses to buffer notification when URI is unspecified
+		
+		} *ipFileSourceAccess;
+
+	class CPFHelper : public CActive
+		{
+	public:
+		static CPFHelper* NewL(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess, CBufferArrivalHandler& aBufferArrivalHandler);
+		~CPFHelper();
+		
+		static OMX_ERRORTYPE ConvertSymbianErrorType(TInt aError);
+
+		// from CActive
+		void RunL();
+		void DoCancel();
+
+		TInt ExecuteAsync();
+		TInt StopAsync();
+		TInt PauseAsync();
+		void StopSync();
+		TInt IdleAsync();
+		TInt FlushIndication();
+		OMX_BOOL RemoveBufferIndication(OMX_BUFFERHEADERTYPE* apBufferHeader);
+
+		enum TMessageType 
+			{
+			EExecuteCommand,
+			EStopCommand,
+			EPauseCommand,
+			ECancelCommand,
+			EIdleCommand,
+			EFlushCommand,
+			ERemoveBufferCommand
+			};
+
+		class TProcMessage
+			{
+		public:
+			TMessageType iType;
+			TAny* iPtr;
+			};
+		
+		class TBufferRemovalArgs
+		    {
+		public:
+		    OMX_BUFFERHEADERTYPE* ipHeader; // Input parameter. Not owned
+		    OMX_BOOL* iHdrRemoved; // Return parameter. Not owned
+		    };
+				
+		RMsgQueue<TProcMessage> iMsgQueue;
+	
+	private:
+		CPFHelper(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess,CBufferArrivalHandler& aBufferArrivalHandler);
+		void ConstructL();
+		
+		TInt ProcessQueue();
+		void PerformFlush();
+		OMX_BOOL PerformBufferRemoval(OMX_BUFFERHEADERTYPE* apBufferHeader);
+
+	private:
+		COmxILFileSourceProcessingFunction& iParent;
+		CFileSourceAccess& iFileSourceAccess;
+		CBufferArrivalHandler& iBufferArrivalHandler;
+	    RThread iRunLContext;
+	    RSemaphore iWaitSemaphore;
+		} *ipPFHelper;
+		
+    class CBufferArrivalHandler : public CActive
+        {
+    public:
+        static CBufferArrivalHandler* NewL(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess);
+        ~CBufferArrivalHandler();        
+        
+        TInt BufferIndication(OMX_BUFFERHEADERTYPE* apBufferHeader);
+        void FlushIndication();
+        OMX_BOOL RemoveBufferIndication(OMX_BUFFERHEADERTYPE* apBufferHeader);
+    
+        // CActive
+        void RunL();
+        void DoCancel();
+        
+    private:
+        CBufferArrivalHandler(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess);
+        void ConstructL();
+        
+    private:    
+		class TBufferIndicationMessage
+            {
+        public:
+            OMX_BUFFERHEADERTYPE* iBufferHdr; // Not owned
+            };
+		
+        RMsgQueue<TBufferIndicationMessage> iMsgQueue; 
+        COmxILFileSourceProcessingFunction& iParent;
+        CFileSourceAccess& iFileSourceAccess;
+        } *ipBufferArrivalHandler;
+	};
+
+#endif // OMXILFILESOURCEPROCESSINGFUNCTION_H
+