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/*
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* Copyright (c) 2002 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: Tools for image conversion.
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*
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*/
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// INCLUDE FILES
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#include "BTServiceUtils.h"
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#include "BTSUImageConverter.h"
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#include "BTSUDebug.h"
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#include <imageconversion.h>
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#include <bitmaptransforms.h>
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//CONSTANTS
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_LIT8( KBTSUImageTypeJpeg, "image/jpeg" );
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const TInt KBTSUJpegQualityFactor = 90;
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const TInt KBTSUImageThumbWidth = 160;
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const TInt KBTSUImageThumbHeight = 120;
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::CBTSUImageConverter
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// Constructor.
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// -----------------------------------------------------------------------------
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//
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CBTSUImageConverter::CBTSUImageConverter(): CActive( EPriorityStandard )
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{
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CActiveScheduler::Add( this );
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}
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// -----------------------------------------------------------------------------
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// Destructor
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// -----------------------------------------------------------------------------
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//
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CBTSUImageConverter::~CBTSUImageConverter()
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter()"));
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Cancel();
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Reset();
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iFileSession.Close();
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FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::NewL
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// Two-phased constructor.
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// -----------------------------------------------------------------------------
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//
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CBTSUImageConverter* CBTSUImageConverter::NewL()
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{
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CBTSUImageConverter* self = new (ELeave) CBTSUImageConverter;
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CleanupStack::PushL( self );
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self->ConstructL();
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CleanupStack::Pop();
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return self;
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::ConstructL
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// Symbian 2nd phase constructor.
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::ConstructL()
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL()"));
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User::LeaveIfError( iFileSession.Connect() );
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iFileSession.ShareProtected();
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FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::GetImageSizeL
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// -----------------------------------------------------------------------------
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//
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TSize CBTSUImageConverter::GetImageSizeL( RFile& aImageFile )
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL()"));
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CImageDecoder* decoder = CImageDecoder::FileNewL(aImageFile,ContentAccess::EPeek );
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TSize size = decoder->FrameInfo().iOverallSizeInPixels;
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delete decoder;
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FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL() completed w=%d h=%d"), size.iWidth, size.iHeight ));
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return size;
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::CreateThumbnailL
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::CreateThumbnailL( RFile& aSourceFile,
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const TDesC& aDestFile )
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL()"));
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Reset();
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DecodeImageL( aSourceFile );
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ScaleImageL();
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EncodeImageL( aDestFile, ETrue );
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Reset();
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FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::GetDisplayNameL
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// -----------------------------------------------------------------------------
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//
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HBufC* CBTSUImageConverter::GetDisplayNameL( const TDesC8& aMimeType )
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL()"));
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if ( &aMimeType == NULL ||
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aMimeType.Length() == 0 ||
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aMimeType.Length() > KMaxFileName )
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{
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User::Leave( KErrArgument );
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}
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HBufC* name = NULL;
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// Get file types from decoder
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//
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RFileExtensionMIMETypeArray fileTypes;
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CleanupResetAndDestroyPushL( fileTypes );
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CImageDecoder::GetFileTypesL( fileTypes );
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// Find the display name for the mime type
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//
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for( TInt index = 0; index < fileTypes.Count(); index++ )
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{
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if ( fileTypes[index]->MIMEType() == aMimeType )
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{
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name = fileTypes[index]->DisplayName().AllocL();
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break;
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}
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}
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CleanupStack::PopAndDestroy(); // fileTypes
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if ( name == NULL )
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{
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// No display name found, so the image type is not supported.
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//
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User::Leave( KErrNotSupported );
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}
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FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL() completed"));
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return name;
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::DoCancel
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::DoCancel()
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel()"));
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if ( iDecoder )
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{
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iDecoder->Cancel();
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}
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if ( iScaler )
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{
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iScaler->Cancel();
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}
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if ( iEncoder )
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{
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iEncoder->Cancel();
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}
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FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::RunL
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::RunL()
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{
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FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::RunL() %d"), iStatus.Int() ));
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iWait.AsyncStop();
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FLOG(_L("[BTSU]\t CBTSUImageConverter::RunL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::DecodeImageL
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::DecodeImageL( RFile& aSourceFile )
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL( )"));
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__ASSERT_DEBUG( iDecoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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__ASSERT_DEBUG( iFrameBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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// Create decoder
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//
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iDecoder = CImageDecoder::FileNewL(aSourceFile, ContentAccess::EPeek );
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// Create a bitmap
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//
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iFrameBitmap = new ( ELeave ) CFbsBitmap;
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User::LeaveIfError( iFrameBitmap->Create(
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iDecoder->FrameInfo().iOverallSizeInPixels,
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iDecoder->FrameInfo().iFrameDisplayMode ) );
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// Start decoding
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//
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iDecoder->Convert( &iStatus, *iFrameBitmap );
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SetActive();
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iWait.Start(); // Wait here until decoding is completed
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User::LeaveIfError( iStatus.Int() );
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FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::EncodeImageL
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::EncodeImageL( const TDesC& aDestFile,
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const TBool& aThumbnail )
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL()"));
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__ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
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__ASSERT_DEBUG( iEncoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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__ASSERT_DEBUG( iFrameImageData == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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// Create encoder
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//
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iEncoder = CImageEncoder::FileNewL( iFileSession, aDestFile, KBTSUImageTypeJpeg() );
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// Create frame image data
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//
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iFrameImageData = CFrameImageData::NewL();
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TJpegImageData* jpegFormat = new ( ELeave ) TJpegImageData;
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CleanupStack::PushL( jpegFormat );
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jpegFormat->iSampleScheme = TJpegImageData::EColor422;
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jpegFormat->iQualityFactor = KBTSUJpegQualityFactor;
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User::LeaveIfError( iFrameImageData->AppendImageData( jpegFormat ) );
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CleanupStack::Pop( jpegFormat );
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// Start encoding
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//
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if ( aThumbnail )
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{
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__ASSERT_DEBUG( iScaledBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
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iEncoder->Convert( &iStatus, *iScaledBitmap, iFrameImageData );
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}
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else
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{
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__ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
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iEncoder->Convert( &iStatus, *iFrameBitmap, iFrameImageData );
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}
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SetActive();
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iWait.Start(); // Wait here until encoding is completed
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User::LeaveIfError( iStatus.Int() );
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FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::ScaleImageL
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::ScaleImageL()
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL( )"));
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__ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
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__ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
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__ASSERT_DEBUG( iScaler == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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__ASSERT_DEBUG( iScaledBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
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// Create scaler
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//
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iScaler = CBitmapScaler::NewL();
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// Create a bitmap
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//
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iScaledBitmap = new ( ELeave ) CFbsBitmap;
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TSize size;
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size.iWidth = KBTSUImageThumbWidth;
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size.iHeight = KBTSUImageThumbHeight;
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User::LeaveIfError( iScaledBitmap->Create( size,
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iDecoder->FrameInfo().iFrameDisplayMode ) );
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// Start scaling
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//
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iScaler->Scale( &iStatus, *iFrameBitmap, *iScaledBitmap, EFalse );
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SetActive();
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iWait.Start(); // Wait here until scaling is completed
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User::LeaveIfError( iStatus.Int() );
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FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL() completed"));
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}
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// -----------------------------------------------------------------------------
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// CBTSUImageConverter::Reset
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// -----------------------------------------------------------------------------
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//
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void CBTSUImageConverter::Reset()
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{
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FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset()"));
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delete iDecoder; iDecoder = NULL;
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delete iEncoder; iEncoder = NULL;
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delete iScaler; iScaler = NULL;
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delete iFrameImageData; iFrameImageData = NULL;
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delete iFrameBitmap; iFrameBitmap = NULL;
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delete iScaledBitmap; iScaledBitmap = NULL;
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FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset() completed"));
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}
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// End of File
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