camerauis/cameraapp/generic/src/camsnapshotrotator.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 25 May 2010 12:22:04 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201019 Kit: 2010121
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Utility class to rotate bitmaps*
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*/
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// INCLUDE FILES
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#include "camsnapshotrotator.h"
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#include "CamSyncRotatorAo.h"
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#include "CamBurstCaptureArray.h"
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#include "camlogging.h"
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#include "CamAppController.h"
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// CONSTANTS
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// MACROS
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// LOCAL CONSTANTS AND MACROS
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// MODULE DATA STRUCTURES
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// LOCAL FUNCTION PROTOTYPES
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// FORWARD DECLARATIONS
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// ============================= LOCAL FUNCTIONS ===============================
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CCamSnapShotRotator::CCamSnapShotRotator
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// C++ constructor
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// -----------------------------------------------------------------------------
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//
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CCamSnapShotRotator::CCamSnapShotRotator( CCamAppController& aController ) 
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    : iController(aController), iRotatedSnapshot(NULL), iRotatorAo(NULL)
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    {    
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    }
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// -----------------------------------------------------------------------------
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// CCamSnapShotRotator::ConstructL
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// Second phase constructor.
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// -----------------------------------------------------------------------------
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//
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void CCamSnapShotRotator::ConstructL()
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    {   
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    }
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// -----------------------------------------------------------------------------
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// CCamSnapShotRotator::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CCamSnapShotRotator* CCamSnapShotRotator::NewL( CCamAppController& aController )
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    {
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    CCamSnapShotRotator* self = new( ELeave ) CCamSnapShotRotator( aController );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// -----------------------------------------------------------------------------
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// CCamSnapShotRotator::~CCamSnapShotRotator()
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CCamSnapShotRotator::~CCamSnapShotRotator()
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    {
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    PRINT( _L("Camera => ~CCamSnapShotRotator") );
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    if ( iRotatorAo && iRotatorAo->IsActive() )
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        {
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        iRotatorAo->Cancel();
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        }
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    delete iRotatorAo;
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    delete iRotatedSnapshot;
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    PRINT( _L("Camera <= ~CCamSnapShotRotator") );
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    }
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// ---------------------------------------------------------------------------
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// CCamSnapShotRotator::RotationCompleteL
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// Notification of bitmap rotation complete events
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// ---------------------------------------------------------------------------
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//  
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void CCamSnapShotRotator::RotationCompleteL( TInt aErr )
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    {
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    PRINT1( _L( "Camera => CCamSnapShotRotator::RotationCompleteL aErr:%d" ), aErr );
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     // Use this snapshot, even if rotation fails. 
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    if ( iRotatedSnapshot )
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        {
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        PRINT( _L( "Camera => CCamSnapShotRotator::RotationCompleteL - ReplaceSnapshot" ) );
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        iController.BurstCaptureArray()->ReplaceSnapshot( iRotatedSnapshot, 0 );
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        PRINT( _L( "Camera => CCamSnapShotRotator::RotationCompleteL - delete iRotatedSnapshot" ) );
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        delete iRotatedSnapshot;
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        iRotatedSnapshot = NULL;
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        iController.SnapshotRotationComplete();
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        }
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    PRINT( _L( "Camera <= CCamSnapShotRotator::RotationCompleteL" ) );         
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    }    
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// ---------------------------------------------------------------------------
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// CCamSnapShotRotator::Rotate
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// ---------------------------------------------------------------------------
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//  
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void CCamSnapShotRotator::RotateL( CFbsBitmap* aBitmap )
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    {
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    PRINT( _L( "Camera => CCamSnapShotRotator::Rotate" ) ); 
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    if ( !iRotatedSnapshot )
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        {
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        iRotatedSnapshot = new (ELeave)CFbsBitmap();
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        }
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    iRotatedSnapshot->Create( aBitmap->SizeInPixels(), aBitmap->DisplayMode() );
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    TRect tmpRect( TPoint( 0, 0 ), aBitmap->SizeInPixels() );
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    TInt tmpLen = tmpRect.Width() * tmpRect.Height() * 4;
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    //copy the snapshot data
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    iRotatedSnapshot->BeginDataAccess();
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    aBitmap->BeginDataAccess();
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    Mem::Copy( iRotatedSnapshot->DataAddress(), aBitmap->DataAddress(), tmpLen );
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    iRotatedSnapshot->EndDataAccess();
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    aBitmap->EndDataAccess();
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    if ( !iRotatorAo )
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        {
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        iRotatorAo = CCamSyncRotatorAo::NewL( *this );
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        }    
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    iRotatorAo->RotateL( iRotatedSnapshot, CBitmapRotator::ERotation180DegreesClockwise );
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    PRINT( _L( "Camera <= CCamSnapShotRotator::Rotate" ) );  
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    }
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// ---------------------------------------------------------------------------
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// CCamSnapShotRotator::IsActive
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// ---------------------------------------------------------------------------
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//  
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TBool CCamSnapShotRotator::IsActive()
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    {
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    TBool ret(EFalse);
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    if ( iRotatorAo )
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        {
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        ret = iRotatorAo->IsActive();
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        }
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    return ret;
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    }
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//  End of File