--- a/imagehandlinglib/Src/CIHLFileImageExtJpg.cpp Fri Sep 03 10:29:37 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,610 +0,0 @@
-/*
-* Copyright (c) 2006 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: Implementation of FileImageExtJpg class.
-*
-*/
-
-
-// INCLUDE FILES
-#include "CIHLFileImageExtJpg.h"
-
-#include "CIHLBitmap.h"
-#include "IHLImplementationIds.h"
-#include <IHLInterfaceIds.h>
-#include <IclExtJpegApi.h>
-
-// Private namespace for constants and functions
-namespace
- {
- // Fixed scale factors
- enum TScaleFactors
- {
- EHalf = 2,
- EQuarter = 4,
- EEighth = 8,
- };
-
- // Panic function
- _LIT( KIHLExtJpgPanic, "IHLImageExtJpg" );
- void Panic( TInt aPanicCode ) { User::Panic( KIHLExtJpgPanic, aPanicCode ); }
- }
-
-// ============================ MEMBER FUNCTIONS ===============================
-// -----------------------------------------------------------------------------
-//
-// C++ default constructor can NOT contain any code, that
-// might leave.
-// -----------------------------------------------------------------------------
-CIHLFileImageExtJpg::CIHLFileImageExtJpg( TInt aImageIndex )
-:CActive( CActive::EPriorityStandard ),
-iImageIndex( aImageIndex )
- {
- CActiveScheduler::Add( this );
- }
-
-// -----------------------------------------------------------------------------
-//
-// Two-phased constructor.
-// -----------------------------------------------------------------------------
-
-CIHLFileImageExtJpg* CIHLFileImageExtJpg::NewL( RFs& aFs, const TDesC8& aDataBuf,
- TInt aImageIndex, const TUint32 aOptions )
- {
- CIHLFileImageExtJpg* self = new (ELeave) CIHLFileImageExtJpg( aImageIndex );
- CleanupStack::PushL( self );
- self->ConstructL( aFs, aDataBuf, aOptions );
- CleanupStack::Pop(); // self
- return self;
- }
-
-CIHLFileImageExtJpg* CIHLFileImageExtJpg::NewL( RFs& aFs, const TDesC& aFilename,
- TInt aImageIndex, const TUint32 aOptions )
- {
- CIHLFileImageExtJpg* self = new (ELeave) CIHLFileImageExtJpg( aImageIndex );
- CleanupStack::PushL( self );
- self->ConstructL( aFs, aFilename, aOptions );
- CleanupStack::Pop(); // self
- return self;
- }
-
-// -----------------------------------------------------------------------------
-//
-// Symbian constructor can leave.
-// -----------------------------------------------------------------------------
-
-
-void CIHLFileImageExtJpg::ConstructL( RFs& aFs, const TDesC& aFilename, const TUint32 /*aOptions*/ )
- {
- TRAPD( err, iDecoder = CExtJpegDecoder::FileNewL( CExtJpegDecoder::EHwImplementation, aFs, aFilename ) );
-
- if ( err != KErrNone )
- {
- iDecoder = CExtJpegDecoder::FileNewL( CExtJpegDecoder::ESwImplementation, aFs, aFilename );
- }
-
- ConstructCommonL();
- }
-
-void CIHLFileImageExtJpg::ConstructL( RFs& aFs, const TDesC8& aDataBuf, const TUint32 /*aOptions*/ )
- {
- TRAPD( err, iDecoder = CExtJpegDecoder::DataNewL( CExtJpegDecoder::EHwImplementation, aFs, aDataBuf ) );
-
- if ( err != KErrNone )
- {
- iDecoder = CExtJpegDecoder::DataNewL( CExtJpegDecoder::ESwImplementation, aFs, aDataBuf );
- }
-
- ConstructCommonL();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ConstructCommonL
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::ConstructCommonL()
- {
- // Check frame count and image index
- iImageCount = iDecoder->FrameCount();
- __ASSERT_ALWAYS( iImageCount > 0, User::Leave( KErrCorrupt ) );
-
- // Get image types
- iDecoder->ImageType( iImageIndex, iImageType, iImageSubType );
-
- __ASSERT_ALWAYS( iImageIndex >= 0 && iImageIndex < iImageCount, User::Leave( KErrArgument ) );
-
- // cache frame info and set scale sizes
- iFrameInfo = iDecoder->FrameInfo( iImageIndex );
- if( iFrameInfo.iFlags & TFrameInfo::EFullyScaleable )
- {
- iFullyScaleable = ETrue;
- }
- }
-
-// -----------------------------------------------------------------------------
-// Destructor
-// -----------------------------------------------------------------------------
-CIHLFileImageExtJpg::~CIHLFileImageExtJpg()
- {
- Cancel();
- delete iDecoder;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::Type
-// -----------------------------------------------------------------------------
-TIHLInterfaceType CIHLFileImageExtJpg::Type() const
- {
- return TIHLInterfaceType( KIHLInterfaceIdFileImage,
- KIHLImplementationIdFileImageExtJpg );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ImageType
-// -----------------------------------------------------------------------------
-const TUid& CIHLFileImageExtJpg::ImageType() const
- {
- return iImageType;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ImageSubType
-// -----------------------------------------------------------------------------
-const TUid& CIHLFileImageExtJpg::ImageSubType() const
- {
- return iImageSubType;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ImageIndex
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::ImageIndex() const
- {
- return iImageIndex;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ImageCount
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::ImageCount() const
- {
- return iImageCount;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::Size
-// -----------------------------------------------------------------------------
-TSize CIHLFileImageExtJpg::Size() const
- {
- return iFrameInfo.iOverallSizeInPixels;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::DisplayMode
-// -----------------------------------------------------------------------------
-TDisplayMode CIHLFileImageExtJpg::DisplayMode() const
- {
- TDisplayMode displayMode( iFrameInfo.iFrameDisplayMode );
- if( iFrameInfo.iFrameDisplayMode <= EGray256 )
- {
- displayMode = EGray256;
- }
- else if( iFrameInfo.iFrameDisplayMode <= EColor256 )
- {
- displayMode = EColor256;
- }
-
- return displayMode;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::MaskDisplayMode
-// -----------------------------------------------------------------------------
-TDisplayMode CIHLFileImageExtJpg::MaskDisplayMode() const
- {
- if( iFrameInfo.iFlags & TFrameInfo::ETransparencyPossible )
- {
- if( iFrameInfo.iFlags & TFrameInfo::EAlphaChannel )
- {
- return EGray256;
- }
- return EGray2;
- }
- return ENone;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::BackgroundColor
-// -----------------------------------------------------------------------------
-TRgb CIHLFileImageExtJpg::BackgroundColor() const
- {
- return iFrameInfo.iBackgroundColor;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::CustomLoadSizeArray
-// -----------------------------------------------------------------------------
-const RArray<TSize>& CIHLFileImageExtJpg::CustomLoadSizeArray() const
- {
- return iLoadSizeArray;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::IsFullyScaleable
-// -----------------------------------------------------------------------------
-TBool CIHLFileImageExtJpg::IsFullyScaleable() const
- {
- return iFullyScaleable;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::IsAnimation
-// -----------------------------------------------------------------------------
-TBool CIHLFileImageExtJpg::IsAnimation() const
- {
- return iAnimation;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::AnimationFrameCount
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::AnimationFrameCount() const
- {
- return iAnimationFrameCount;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::AnimationFrameDelay
-// -----------------------------------------------------------------------------
-TTimeIntervalMicroSeconds32 CIHLFileImageExtJpg::AnimationFrameDelay( TInt aAnimationFrameIndex ) const
- {
- //Animation is not supported
- ( void ) aAnimationFrameIndex;
- Panic( KErrNotSupported );
- return 0;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::Load
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::Load( TRequestStatus& aStatus, MIHLBitmap& aDestination, TInt aFrameIndex )
- {
- iImageIndex = aFrameIndex;
- return LoadRequest( aStatus, aDestination, iImageIndex );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::Load
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::Load( TRect aSrcRect, TRequestStatus& aStatus, MIHLBitmap& aDestination, TInt aFrameIndex )
- {
- TRAPD( err, SetCroppingL( aSrcRect ) );
- if( err )
- {
- return err;
- }
- iImageIndex = aFrameIndex;
- return LoadRequest( aStatus, aDestination, iImageIndex );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::LoadAnimation
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::LoadAnimation( TRequestStatus& aStatus, MIHLBitmap& aDestination,
- TInt aAnimationFrameIndex )
- {
- //Animation is not supported
- ( void ) aStatus;
- ( void ) aDestination;
- ( void ) aAnimationFrameIndex;
- Panic( KErrNotSupported );
- return 0;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::IsBusy
-// -----------------------------------------------------------------------------
-TBool CIHLFileImageExtJpg::IsBusy() const
- {
- return ( iImageState != EInactive );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::CancelLoad
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::CancelLoad()
- {
- Cancel();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetFilter
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::SetFilter( MIHLFilter* /*aFilter*/ )
- {
- // Not in use
- }
-
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::Decoder
-// -----------------------------------------------------------------------------
-const CExtJpegDecoder& CIHLFileImageExtJpg::Decoder() const
- {
- return *iDecoder;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::DoCancel
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::DoCancel()
- {
- iDecoder->Cancel();
-
- // Delete all processed bitmaps
- ErrorCleanup();
-
- // Complete with cancel
- iImageState = EInactive;
- RequestComplete( KErrCancel );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::RunL
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::RunL()
- {
- __ASSERT_DEBUG( iDestination, Panic( KErrGeneral ) );
- User::LeaveIfError( iStatus.Int() );
-
- switch( iImageState )
- {
- case EStartLoad:
- {
- // start loading the bitmaps
- StartLoadL();
- break;
- }
- case ECompleteLoad:
- {
- // complete loading the bitmaps
- CompleteLoadL();
- break;
- }
- default:
- {
- Panic( KErrTotalLossOfPrecision );
- }
- }
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::RunError
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::RunError( TInt aError )
- {
- // Delete all processed bitmaps
- ErrorCleanup();
-
- // Complete with error
- iImageState = EInactive;
- RequestComplete( aError );
- return KErrNone;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::LoadRequest
-// -----------------------------------------------------------------------------
-TInt CIHLFileImageExtJpg::LoadRequest( TRequestStatus& aStatus, MIHLBitmap& aDestination, TInt aFrameIndex )
- {
- if( IsBusy() )
- {
- return KErrNotReady;
- }
-
- if( aFrameIndex < 0 || aFrameIndex >= iDecoder->FrameCount() )
- {
- return KErrArgument;
- }
-
- const CFbsBitmap& dstBitmap = aDestination.Bitmap();
- if( !dstBitmap.Handle() )
- {
- return KErrArgument;
- }
-
- iImageStatus = &aStatus;
- *iImageStatus = KRequestPending;
-
- iDestination = static_cast<CIHLBitmap*>( &aDestination ); //lint !e826
- iFrameIndex = aFrameIndex;
-
- // Start the active object
- iImageState = EStartLoad;
- SelfComplete();
- return KErrNone;
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::StartLoadL
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::StartLoadL()
- {
- CFbsBitmap& dstBitmap = iDestination->BitmapModifyable();
- CFbsBitmap& dstMask = iDestination->MaskModifyable();
-
- if( MaskDisplayMode() && dstMask.Handle() )
- {
- iDecoder->Convert( &iStatus, dstBitmap, dstMask, iFrameIndex );
- }
- else
- {
- dstMask.Reset();
- iDecoder->Convert( &iStatus, dstBitmap, iFrameIndex );
- }
- iImageState = ECompleteLoad;
- SetActive();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::CompleteLoadL
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::CompleteLoadL()
- {
- // Save source info destination
- iDestination->SetEditorPtr( this );
- iDestination->SetEditorValue( iFrameIndex );
-
- // Normal image ready
- iDestination = NULL;
- iImageState = EInactive;
- RequestComplete( KErrNone );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ErrorCleanup
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::ErrorCleanup()
- {
- if( iDestination )
- {
- iDestination = NULL;
- }
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SelfComplete
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::SelfComplete()
- {
- SetActive();
- iStatus = KRequestPending;
- TRequestStatus* status = &iStatus;
- User::RequestComplete( status, KErrNone );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::RequestComplete
-// -----------------------------------------------------------------------------
-void CIHLFileImageExtJpg::RequestComplete( TInt aReason )
- {
- ASSERT( iImageStatus );
- User::RequestComplete( iImageStatus, aReason );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetCroppingL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetCroppingL( TRect aCropRect )
- {
- iDecoder->SetCroppingL( aCropRect );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetStreamingL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetStreamingL( TSize& aMacroBlockSize )
- {
- iDecoder->SetStreamingL( aMacroBlockSize );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetRotationL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetRotationL( TInt aDegree )
- {
- iDecoder->SetRotationL( aDegree );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetFlippingL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetFlippingL()
- {
- iDecoder->SetFlippingL();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetMirroringL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetMirroringL()
- {
- iDecoder->SetMirroringL();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SetDctDecodingL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::SetDctDecodingL()
- {
- iDecoder->SetDctDecodingL();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ConvertL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::ConvertL(
- TRequestStatus* aRequestStatus,
- const CVisualFrame* aDestinationFrame,
- TInt& aNoOfDecodedMBlocks,
- TInt aFrameNumber )
- {
- iDecoder->ConvertL(
- aRequestStatus,
- aDestinationFrame,
- aNoOfDecodedMBlocks,
- aFrameNumber );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::ContinueConvertL
-// -----------------------------------------------------------------------------
-
-void CIHLFileImageExtJpg::ContinueConvertL(
- TRequestStatus* aRequestStatus,
- const CVisualFrame* aDestinationFrame,
- TInt& aNoOfDecodedMBlocks,
- TInt aFrameNumber )
- {
- iDecoder->ContinueConvertL(
- aRequestStatus,
- aDestinationFrame,
- aNoOfDecodedMBlocks,
- aFrameNumber );
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::SupportedFormatsL
-// -----------------------------------------------------------------------------
-
-TInt CIHLFileImageExtJpg::SupportedFormatsL()
- {
- return iDecoder->SupportedFormatsL();
- }
-
-// -----------------------------------------------------------------------------
-// CIHLFileImageExtJpg::CapabilitiesL
-// -----------------------------------------------------------------------------
-
-TInt CIHLFileImageExtJpg::CapabilitiesL()
- {
- return iDecoder->CapabilitiesL();
- }
-
-//End of file