// 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

 */

#include <uri8.h>

#include "omxilcallbackmanager.h"

#include "omxilfilesourceprocessingfunction.h"

const TInt KMaxMsgQueueEntries = 25;

COmxILFileSourceProcessingFunction* COmxILFileSourceProcessingFunction::NewL(MOmxILCallbackNotificationIf& aCallbacks)

	{

	COmxILFileSourceProcessingFunction* self = new (ELeave) COmxILFileSourceProcessingFunction(aCallbacks);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

COmxILFileSourceProcessingFunction::COmxILFileSourceProcessingFunction(MOmxILCallbackNotificationIf& aCallbacks)

: COmxILProcessingFunction(aCallbacks)

	{

	}

void COmxILFileSourceProcessingFunction::ConstructL()

	{

	iState = OMX_StateLoaded;

	iFileSourceAccess = CFileSourceAccess::NewL(*this);

	iPFHelper = CPFHelper::NewL(*this, *iFileSourceAccess);

	}

COmxILFileSourceProcessingFunction::~COmxILFileSourceProcessingFunction()

	{

	if(iPFHelper &&

	   (iState == OMX_StateInvalid  ||

	    iState == OMX_StateExecuting ||

	    iState == OMX_StatePause))

		{

		iPFHelper->StopSync();

		}

	delete iPFHelper;

	delete iFileSourceAccess;

	delete iUri;

	delete iFileName;

	// Buffer headers are not owned by the processing function

    iBuffersToFill.Close();

	}

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::StateTransitionIndication(COmxILFsm::TStateIndex aNewState)

	{

	OMX_ERRORTYPE err = OMX_ErrorNone;

	switch(aNewState)

		{

		case COmxILFsm::EStateExecuting:

			{

			if (iPFHelper->ExecuteAsync() != KErrNone)

				{

				err = OMX_ErrorInsufficientResources;

				}

			}

			break;

		case COmxILFsm::EStateInvalid:

			{

            if (iPFHelper && iPFHelper->StopAsync() != KErrNone)

                {

                err = OMX_ErrorInsufficientResources;

                }

			}

			break;

		case COmxILFsm::EStatePause:

			{

			iPFHelper->PauseAsync();

			}

			break;

		case COmxILFsm::EStateIdle:

			{			

			iPFHelper->IdleAsync();

			}

			break;

		case COmxILFsm::EStateLoaded:

		case COmxILFsm::EStateWaitForResources:

			{

			if (iPFHelper && iPFHelper->StopAsync() != KErrNone)

				{

				err = OMX_ErrorInsufficientResources;

				}

			}

			break;

		case COmxILFsm::ESubStateExecutingToIdle:

			{

			iPFHelper->StopAsync();

			}

			break;

		case COmxILFsm::ESubStatePauseToIdle:

	    case COmxILFsm::ESubStateLoadedToIdle:

	    case COmxILFsm::ESubStateIdleToLoaded:

			break;

		default:

			{

			err = OMX_ErrorIncorrectStateTransition;

			}

		};

	return err;

	}

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::BufferFlushingIndication(TUint32 aPortIndex, OMX_DIRTYPE aDirection)

	{

    OMX_ERRORTYPE err = OMX_ErrorNone;

    if ((aPortIndex == OMX_ALL && aDirection == OMX_DirMax) ||

        (aPortIndex == 0 && aDirection == OMX_DirOutput))

        {

        // Send BufferDone notifications for each bufer...

        for (TUint i=0, bufferCount=iBuffersToFill.Count(); i<bufferCount; ++i)

            {

            OMX_BUFFERHEADERTYPE* pBufferHeader = iBuffersToFill[i];

            iCallbacks.BufferDoneNotification(pBufferHeader,

                                              pBufferHeader->nOutputPortIndex,

                                              OMX_DirOutput);

            }

        // Empty buffer lists...

        iBuffersToFill.Reset();

        }

    else

        {

        err = OMX_ErrorBadParameter;

        }

    return err;

    }

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::ParamIndication(OMX_INDEXTYPE aParamIndex, const TAny* apComponentParameterStructure)

	{

	OMX_ERRORTYPE err = OMX_ErrorNone;

	switch(aParamIndex)

		{

		case OMX_IndexParamPortDefinition:

			{

			//const OMX_PARAM_PORTDEFINITIONTYPE* portDefinition = static_cast<const OMX_PARAM_PORTDEFINITIONTYPE*>(apComponentParameterStructure);

			//nothing to do

			//

			//the number of buffers may change depending on capture mode (single shot vs burst mode)

			//in that case, we need to do something for PF...

			break;

			}

		case OMX_IndexParamContentURI:

			{

			const OMX_PARAM_CONTENTURITYPE* contentUriType = reinterpret_cast<const OMX_PARAM_CONTENTURITYPE*>(apComponentParameterStructure);

			err = SetFileName(contentUriType);

			break;

			}

		default:

			{

			err = OMX_ErrorUnsupportedIndex;

			}

		}

	return err;

	}

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::ConfigIndication(OMX_INDEXTYPE /*aConfigIndex*/, const TAny* /*apComponentConfigStructure*/)

	{

	return OMX_ErrorNone;

	}

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::BufferIndication(OMX_BUFFERHEADERTYPE* apBufferHeader, OMX_DIRTYPE aDirection)

	{

	if (aDirection == OMX_DirOutput)

    	{

    	if (iPFHelper->BufferIndication(apBufferHeader) != KErrNone)

    		{

    		return OMX_ErrorInsufficientResources;

    		}

		}

    else

    	{

    	return OMX_ErrorBadParameter;

    	}

    return OMX_ErrorNone;

	}

OMX_BOOL COmxILFileSourceProcessingFunction::BufferRemovalIndication(OMX_BUFFERHEADERTYPE* apBufferHeader, OMX_DIRTYPE /*aDirection*/)

	{

	OMX_BOOL headerDeletionResult = OMX_TRUE;

	TInt headerIndexInArray = KErrNotFound;

	if (KErrNotFound !=(headerIndexInArray = iBuffersToFill.Find(apBufferHeader)))

		{

		iBuffersToFill.Remove(headerIndexInArray);

		}

	else

		{

		headerDeletionResult = OMX_FALSE;

		}

    return headerDeletionResult;

	}

MOmxILCallbackNotificationIf& COmxILFileSourceProcessingFunction::GetCallbacks()

	{

	return iCallbacks;

	}

OMX_ERRORTYPE COmxILFileSourceProcessingFunction::SetFileName(const OMX_PARAM_CONTENTURITYPE* aContentUriType)

	{

	ASSERT(aContentUriType);

	delete iFileName;

	iFileName = NULL;

	delete iUri;

	iUri = NULL;

	TInt sizeOfUri = aContentUriType->nSize - _FOFF(OMX_PARAM_CONTENTURITYPE, contentURI); //Actual size of URI

	if (sizeOfUri <= 0)

		{

		return OMX_ErrorBadParameter;

		}

	// Don't include the zero character at the end.

	TPtrC8 uriDes(aContentUriType->contentURI,sizeOfUri);

	TInt err = KErrNone;

	do

		{

		TUriParser8 parser;

		err = parser.Parse(uriDes);

		if (err != KErrNone)

			{

			break;

			}

		TRAP(err, iFileName = parser.GetFileNameL());

		if (err != KErrNone)

			{

			break;

			}

		// Remove Null charcter '\0' if any.

		TPtr filePtr(iFileName->Des());

		TInt index = filePtr.LocateReverse('\0');

		if (index != KErrNotFound && index == filePtr.Length()-1)

		    {

		    filePtr.Delete(index,1);

		    }

		uriDes.Set(reinterpret_cast<const TUint8 *>(aContentUriType), aContentUriType->nSize );

        iUri = uriDes.Alloc();

        if (!iUri)

            {

            err = KErrNoMemory;

            break;

            }

		return OMX_ErrorNone;

		}

	while (EFalse);

	// Something failed.

	ASSERT(err != KErrNone);

	delete iFileName;

	iFileName = NULL;

	delete iUri;

	iUri = NULL;

	return (err == KErrNoMemory ? OMX_ErrorInsufficientResources : OMX_ErrorBadParameter);

	}

const HBufC* COmxILFileSourceProcessingFunction::FileName() const

	{

	return iFileName;

	}

const HBufC8* COmxILFileSourceProcessingFunction::Uri() const

	{

	return iUri;

	}

COmxILFileSourceProcessingFunction::CFileSourceAccess* COmxILFileSourceProcessingFunction::CFileSourceAccess::NewL(COmxILFileSourceProcessingFunction& aParent)

	{

	CFileSourceAccess* self = new (ELeave) CFileSourceAccess(aParent);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

COmxILFileSourceProcessingFunction::CFileSourceAccess::CFileSourceAccess(COmxILFileSourceProcessingFunction& aParent)

	: CActive(EPriorityStandard),

	iParent(aParent),

	iBufferOffset(0),

	iReadBuffer(0,0)

	{

	CActiveScheduler::Add(this);

	}

void COmxILFileSourceProcessingFunction::CFileSourceAccess::ConstructL()

	{

	User::LeaveIfError(iFs.Connect());

	}

COmxILFileSourceProcessingFunction::CFileSourceAccess::~CFileSourceAccess()

	{

	Cancel();

	iFileHandle.Close();

	iFs.Close();

	}

void COmxILFileSourceProcessingFunction::CFileSourceAccess::RunL()

	{

	// The buffer is not on the list implies that they have already been flushed/spotted

	// via BufferFlushingIndication/BufferRemovalIndication

	TInt index = iParent.iBuffersToFill.Find(iCurrentBuffer);

	if (KErrNotFound != index)

		{

		switch(iStatus.Int())

			{

			case KErrNone:

				{

				if (iReadBuffer.Length()==0) //the end of the file

				    {

				    iFileHandle.Close();

				    iCurrentBuffer->nFlags |= OMX_BUFFERFLAG_EOS;

				    iParent.GetCallbacks().EventNotification(OMX_EventBufferFlag, iCurrentBuffer->nOutputPortIndex, OMX_BUFFERFLAG_EOS, NULL);

				    }

				iCurrentBuffer->nFilledLen=iReadBuffer.Length();

				iCurrentBuffer->nOffset = 0;

				break;

				}

			default:

				{

				User::Leave(iStatus.Int());

				}

			};

		iParent.GetCallbacks().BufferDoneNotification(iCurrentBuffer,iCurrentBuffer->nOutputPortIndex,OMX_DirOutput);

		iParent.iBuffersToFill.Remove(index);

		iCurrentBuffer = NULL;

		if(iFileHandle.SubSessionHandle() != 0)

			{

			ProcessNextBuffer();

			}

		}

	}

TInt COmxILFileSourceProcessingFunction::CFileSourceAccess::ProcessNextBuffer()

	{

	TInt err = KErrNone;

	if ((iParent.iBuffersToFill.Count() > 0) && !IsActive() && iParent.iState == OMX_StateExecuting)

		{

		iCurrentBuffer = iParent.iBuffersToFill[0];

		iReadBuffer.Set(iCurrentBuffer->pBuffer, iCurrentBuffer->nAllocLen, iCurrentBuffer->nAllocLen);

        if (iFileHandle.SubSessionHandle() == 0)

            { 

            SetActive();

            TRequestStatus* status(&iStatus);

            User::RequestComplete(status, KErrNone);

            }

        else

            {

            iFileHandle.Read(iReadBuffer, iCurrentBuffer->nAllocLen, iStatus);

            SetActive();

            }					

		}

	return err;

	}

void COmxILFileSourceProcessingFunction::CFileSourceAccess::DoCancel()

	{

	if (iFileHandle.SubSessionHandle() != 0)

	    {

	    iFileHandle.Close();

	    }

	iCurrentBuffer = NULL;

	}

TInt COmxILFileSourceProcessingFunction::CFileSourceAccess::Execute()

	{

	iParent.iState = OMX_StateExecuting;

	return ProcessNextBuffer();

	}

void COmxILFileSourceProcessingFunction::CFileSourceAccess::Pause()

	{

	iParent.iState = OMX_StatePause;

	}

void COmxILFileSourceProcessingFunction::CFileSourceAccess::Idle()

    {

    iParent.iState = OMX_StateIdle;

    iParent.iBuffersToFill.Reset();

    }

void COmxILFileSourceProcessingFunction::CFileSourceAccess::Stop()

	{

	if(iParent.iState == OMX_StateExecuting || iParent.iState == OMX_StatePause)

		{

		Cancel();

		iParent.iState = OMX_StateIdle;

		}

	}

COmxILFileSourceProcessingFunction::CPFHelper* COmxILFileSourceProcessingFunction::CPFHelper::NewL(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess)

	{

	CPFHelper* self = new (ELeave) CPFHelper(aParent, aFileSourceAccess);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

COmxILFileSourceProcessingFunction::CPFHelper::CPFHelper(COmxILFileSourceProcessingFunction& aParent, CFileSourceAccess& aFileSourceAccess)

: CActive(EPriorityStandard),

  iParent(aParent),

  iFileSourceAccess(aFileSourceAccess)

	{

	CActiveScheduler::Add(this);

	}

void COmxILFileSourceProcessingFunction::CPFHelper::ConstructL()

	{

	User::LeaveIfError(iMsgQueue.CreateLocal(KMaxMsgQueueEntries));

	SetActive();

	iMsgQueue.NotifyDataAvailable(iStatus);

	}

COmxILFileSourceProcessingFunction::CPFHelper::~CPFHelper()

	{

	Cancel();

	iMsgQueue.Close();

	}

void COmxILFileSourceProcessingFunction::CPFHelper::RunL()

	{

	TInt err = ProcessQueue();

	if (err != KErrNone)

		{

		iParent.GetCallbacks().ErrorEventNotification( ConvertSymbianErrorType(err) );

		}

	// setup for next callbacks

	SetActive();

	iMsgQueue.NotifyDataAvailable(iStatus);

	}

void COmxILFileSourceProcessingFunction::CPFHelper::DoCancel()

	{

	if (iMsgQueue.Handle())

		{

		ProcessQueue();	

		iMsgQueue.CancelDataAvailable();

		}

	}

TInt COmxILFileSourceProcessingFunction::CPFHelper::ProcessQueue()

	{

	TProcMessage msg;

	TInt err = KErrNone;

	while (iMsgQueue.Receive(msg) == KErrNone)

		{

		switch (msg.iType)

			{			

			case EExecuteCommand:

				{

                const HBufC* fileName = iParent.FileName();

	            if (fileName && iFileSourceAccess.iFileHandle.SubSessionHandle() == 0)

                    {

                    err = iFileSourceAccess.iFileHandle.Open(iFileSourceAccess.iFs, *fileName, EFileRead | EFileShareReadersOnly);

                    }

	               else

	                    {

//#define KHRONOS_CONFORMANCE 

// The KHRONOS_CONFORMANCE is required to pass the following khronos conformance component tests (FlushTest,

// BaseMultiThreadedTest, StateTransitionTest, PortDisableEnableTest, IncompleteStopTest and PortCommunicationTest)

// that expects no error to be returned when a filesource filename is not set. 

#ifdef KHRONOS_CONFORMANCE  

// do nothing, don't report any error

#else

	                    err =  KErrPathNotFound;

#endif

	                    }

                if ( err == KErrNone)

                    {

                    err = iFileSourceAccess.Execute();

                    }

				break;

				}

			case EStopCommand:

				{

				iFileSourceAccess.Stop();

				break;

				}

			case EPauseCommand:

				{