/*

* Copyright (c) 2005 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:  Handles accessing 3D motion pattern data.

*

*/

// INCLUDE FILES

#include "C3DAudioPattern.h"		// C3DAudioPattern

#include <s32std.h>				// RReadStream, RWriteStream

// CONSTANTS

// Granularity for array holding updates.

const TInt KPatternArrayGranularity = 84;

// Maximum length for name of the pattern.

const TUint KMaxPatternNameLength = 100;

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// C3DAudioPattern::NewL

// Two-phased constructor. 

// -----------------------------------------------------------------------------

//

C3DAudioPattern* C3DAudioPattern::NewL()

    {

    C3DAudioPattern * self = C3DAudioPattern::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

// -----------------------------------------------------------------------------

// C3DAudioPattern::NewLC

// Two-phased constructor. Leaves pointer on cleanup stack.

// -----------------------------------------------------------------------------

//

C3DAudioPattern* C3DAudioPattern::NewLC()

    {

    C3DAudioPattern * self = new ( ELeave ) C3DAudioPattern();

    CleanupStack::PushL( self );

    return self;

    }

// -----------------------------------------------------------------------------

// C3DAudioPattern::NewL

// Two-phased constructor. 

// -----------------------------------------------------------------------------

//

C3DAudioPattern* C3DAudioPattern::NewL( RReadStream& aStream )

	{

	C3DAudioPattern* self = C3DAudioPattern::NewLC( aStream );

	CleanupStack::Pop( self );

	return self;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::NewLC

// Two-phased constructor. Leaves pointer on cleanup stack.

// -----------------------------------------------------------------------------

//

C3DAudioPattern* C3DAudioPattern::NewLC( RReadStream& aStream )

	{

	C3DAudioPattern* self = new ( ELeave ) C3DAudioPattern();

	CleanupStack::PushL( self );

	self->InternalizeL( aStream );

	return self;

	}

// Destructor

C3DAudioPattern::~C3DAudioPattern()

    {

    iScript.Close();

    iLoops.Close();

    iOpenLoops.Close();

    delete iName;

    }

// -----------------------------------------------------------------------------

// C3DAudioPattern::ExternalizeL

// Externalizes pattern to writestream.

// -----------------------------------------------------------------------------

//

void C3DAudioPattern::ExternalizeL(	RWriteStream& aStream ) const

	{

	// Name of the pattern

	aStream << *iName;

	// Initial doppler and reverb.

	aStream.WriteInt8L( iInitialDoppler );

	aStream.WriteUint8L( iInitialReverb );

	// Number of loops

	aStream.WriteUint8L( iLoops.Count() );

	// Each loop

	for ( TInt i = 0; i < iLoops.Count(); ++i )

		{

		aStream.WriteUint8L( iLoops[i].iLoopStart );

		aStream.WriteUint8L( iLoops[i].iLoopEnd );

		aStream.WriteUint8L( iLoops[i].iCount );

		}

	// Number of updates in the script		

	aStream.WriteUint8L( iScript.Count() );

	// Each update

	for ( TInt i = 0; i < iScript.Count(); ++i )

		{

		// Position of the update

		aStream.WriteInt16L( iScript[i].iPosition.iX );

		aStream.WriteInt16L( iScript[i].iPosition.iY );

		aStream.WriteInt16L( iScript[i].iPosition.iZ );

		// Velocity of the update

		aStream.WriteInt8L( iScript[i].iVelocity.iScalar );

		aStream.WriteUint16L( iScript[i].iVelocity.iScalarVelocity );

		aStream.WriteInt16L( iScript[i].iVelocity.iXVector );

		aStream.WriteInt16L( iScript[i].iVelocity.iYVector );

		aStream.WriteInt16L( iScript[i].iVelocity.iZVector );

		// Time reserved for the update.

		aStream.WriteUint16L( iScript[i].iDTime );

		}

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::InternalizeL

// Internalizes pattern from readstream

// -----------------------------------------------------------------------------

//

void C3DAudioPattern::InternalizeL(	RReadStream& aStream )

	{

	// Internalize the name from stream.

	delete iName;

	iName = NULL;

	iName = HBufC8::NewL( aStream, KMaxPatternNameLength );

	// Initial doppler and reverberation

	iInitialDoppler = aStream.ReadInt8L();

	iInitialReverb = aStream.ReadUint8L();

	// Reset the array of loops.

	iLoops.Reset();

	TInt loopCount = aStream.ReadUint8L();

	// Read each loop.

	for (TInt i = 0; i < loopCount; ++i)

		{

		T3DLoop tempLoop;

		tempLoop.iLoopStart = aStream.ReadUint8L();

		tempLoop.iLoopEnd = aStream.ReadUint8L();

		tempLoop.iCount = aStream.ReadUint8L();

		iLoops.AppendL( tempLoop );

		}

	// Reset the array of loops.

	iScript.Reset();

	TInt scriptCount = aStream.ReadUint8L();

	// Read each update.

	for (TInt i = 0; i < scriptCount; ++i)

		{

		T3DPosition tempPosition;

		tempPosition.iX = aStream.ReadInt16L();

		tempPosition.iY = aStream.ReadInt16L();

		tempPosition.iZ = aStream.ReadInt16L();

		T3DVelocity tempVelocity;

		tempVelocity.iScalar = aStream.ReadInt8L();

		tempVelocity.iScalarVelocity = aStream.ReadUint16L();

		tempVelocity.iXVector = aStream.ReadInt16L();

		tempVelocity.iYVector = aStream.ReadInt16L();

		tempVelocity.iZVector = aStream.ReadInt16L();

		T3DScriptUpdate tempScript;

		tempScript.iDTime = aStream.ReadUint16L();

		tempScript.iPosition = tempPosition;

		tempScript.iVelocity = tempVelocity;

		iScript.AppendL( tempScript );

		}

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::SetName

// Set the name of the pattern. Memory will be allocated.

// -----------------------------------------------------------------------------

//

void C3DAudioPattern::SetNameL( const TDesC8& aName )

	{

	delete iName;

	iName = NULL;

	iName = aName.AllocL();

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::SetReverb

// Set the value of reverberation.

// -----------------------------------------------------------------------------

//	

void C3DAudioPattern::SetReverb( const TUint aReverb )

	{

	iInitialReverb = aReverb;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::SetDoppler

// Set the status of doppler.

// -----------------------------------------------------------------------------

//		

void C3DAudioPattern::SetDoppler( const TBool aDoppler )

	{

	iInitialDoppler = aDoppler;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::AddUpdate

// Adds a update to script.

// -----------------------------------------------------------------------------

//

void C3DAudioPattern::AddUpdateL( T3DScriptUpdate& aUpdate )

	{

	User::LeaveIfError( iScript.Append( aUpdate ) );

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::StartLoop

// Start loop at current place in the script.

// -----------------------------------------------------------------------------

//

void C3DAudioPattern::StartLoopL( TUint& aCount )

	{

	// Create T3DLoop and append it to array.

	T3DLoop loop = { iScript.Count(), 0, aCount };

	User::LeaveIfError( iLoops.Append( loop ) );

	// 	Update open loops array, to be able to determine which loop to end.

	User::LeaveIfError( iOpenLoops.Append( iLoops.Count() - 1 ) );

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::EndLoop

// End the lastly started loop.

// -----------------------------------------------------------------------------

//	

void C3DAudioPattern::EndLoop()

	{

	// There is at least one open loop.

	if ( iOpenLoops.Count() != 0 )

		{

		// Get the index of the loop.

		TInt aIndex = iOpenLoops[ iOpenLoops.Count() - 1 ];

		// Set the index of loop end and remove loop from array of open loops.

		iLoops[ aIndex ].iLoopEnd = iScript.Count() - 1;

		iOpenLoops.Remove( iOpenLoops.Count() - 1 );

		}

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::Name

// Get the name of the pattern.

// -----------------------------------------------------------------------------

//	

const TDesC8& C3DAudioPattern::Name()

    {

    return *iName;

    }

// -----------------------------------------------------------------------------

// C3DAudioPattern::Script

// Get the script of pattern.

// -----------------------------------------------------------------------------

//	

RArray< T3DScriptUpdate > C3DAudioPattern::Script()

	{

	return iScript;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::DopplerAvailable

// Is doppler available in the pattern.

// -----------------------------------------------------------------------------

//		

TBool C3DAudioPattern::DopplerAvailable() const

	{

	return iInitialDoppler;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::Reverb

// Get initial reverb of pattern.

// -----------------------------------------------------------------------------

//			

TInt C3DAudioPattern::Reverb() const

	{

	return iInitialReverb;

	}

// -----------------------------------------------------------------------------

// C3DAudioPattern::C3DAudioPattern

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

C3DAudioPattern::C3DAudioPattern(): 

	iScript( KPatternArrayGranularity )

    {

    }

// End of File