--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camappengine/StillConverter/Src/CaeStillEncoder.cpp	Thu Dec 17 08:51:24 2009 +0200
@@ -0,0 +1,336 @@
+/*
+* Copyright (c) 2002 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:  Still Image Encoder for Camera Application Engine
+*
+*/
+
+
+
+// INCLUDE FILES
+#include <eikenv.h>
+
+#include "CaeStillConverter.h"
+#include "CaeStillEncoder.h"
+#include "CaeStillCommon.h"
+
+#ifdef CAE_TEST_VERSION
+#include "CaeStillConverterTestErrors.h"
+#endif
+
+
+// ================= MEMBER FUNCTIONS =======================
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::NewL
+// Two-phased constructor.
+// ---------------------------------------------------------
+//
+EXPORT_C CCaeStillEncoder* CCaeStillEncoder::NewL()
+    {
+    CCaeStillEncoder* self = new( ELeave ) CCaeStillEncoder;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::~CCaeStillEncoder
+// Destructor.
+// ---------------------------------------------------------
+//
+EXPORT_C CCaeStillEncoder::~CCaeStillEncoder()
+    {
+    Cancel();
+    Cleanup();
+    
+    // For RTRT code coverage analysis.
+    // #pragma attol insert _ATCPQ_DUMP(0);
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::SetObserver
+// Sets Still encoder observer.
+// ---------------------------------------------------------
+//
+EXPORT_C void CCaeStillEncoder::SetObserver( 
+    MCaeStillEncoderObserver* aObserver )
+    {
+    iObserver = aObserver;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CCaeStillEncoder::SetImageCodecL
+// Sets the specific image codec implementation to be used in encoding.
+// -----------------------------------------------------------------------------
+//
+void CCaeStillEncoder::SetImageCodecL( 
+	TUid aCodecUid )
+    {
+    iImageCodecUid = aCodecUid;
+    }
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::SetCompressionQuality
+// Sets compression quality.
+// ---------------------------------------------------------
+//
+EXPORT_C void CCaeStillEncoder::SetCompressionQuality( 
+    TInt aQuality )
+    {
+    iJpegQuality = Min( KJpegQualityMax, Max( KJpegQualityMin, aQuality ) );
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::CompressionQuality
+// Gets compression quality.
+// ---------------------------------------------------------
+//
+EXPORT_C TInt CCaeStillEncoder::CompressionQuality() const
+    {
+    return iJpegQuality;
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L
+// Creates CImageItem object, places it in the internal 
+// queue and starts bitmap to memory image conversion.
+// ---------------------------------------------------------
+//
+EXPORT_C void CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L( 
+    CFbsBitmap* aBitmap,  
+    TTargetFormat aTargetFormat )
+    {
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L() entering" ) );
+
+    CleanupStack::PushL( aBitmap );
+
+    // Create image item and set up image data.
+
+    CImageItem* imageItem = new( ELeave ) CImageItem;
+
+    imageItem->iBitmap = aBitmap;
+
+    CleanupStack::Pop( aBitmap );
+    CleanupStack::PushL( imageItem );
+
+    switch ( aTargetFormat )
+        {
+        case ETargetFormatJPEG:
+        default:
+            {
+            imageItem->iImageTypeUid = KImageTypeJPGUid;
+
+            imageItem->iFrameImageData = CFrameImageData::NewL(); 
+            // ( do not push member variable to cleanup stack )
+
+            TJpegImageData* imagedata = new( ELeave ) TJpegImageData;
+            CleanupStack::PushL( imagedata );
+
+            imagedata->iSampleScheme = KCaeJpegColorSampling;
+            imagedata->iQualityFactor = iJpegQuality;
+
+            User::LeaveIfError ( imageItem->iFrameImageData->AppendImageData( imagedata ) );
+
+            CleanupStack::Pop( imagedata );
+            break;
+            }
+        }
+
+    #ifdef CAE_TEST_VERSION
+    // For simulating errors when compiled as special "test version".
+    CaeConvertCFbsBitmapToHBufC8ErrorL();
+    #endif    
+
+    // Append image to the queue.
+    User::LeaveIfError ( iImageQueue->Append( imageItem ) );
+
+    CleanupStack::Pop( imageItem );
+
+    // Start image conversion if not busy.
+    if ( !IsBusy() )
+        {
+        TRAPD( error, ConvertL() );
+        if ( error != KErrNone )
+            {
+            ConversionComplete( error );
+            }
+        }
+
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertCFbsBitmapToHBufC8L() returning" ) );
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::Cleanup
+// Destroy all allocations.
+// ---------------------------------------------------------
+//
+EXPORT_C void CCaeStillEncoder::Cleanup()
+    {
+    if ( iEncoder )
+        {
+        iEncoder->Cancel();
+        delete iEncoder;
+        iEncoder = NULL;
+        }
+
+    if ( iState != EIdle )
+        {
+        delete iEncodedImage;
+        iEncodedImage = NULL;
+        }
+    
+    if ( iImageQueue )
+        {
+        iImageQueue->ResetAndDestroy();
+        }
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::CCaeStillEncoder
+// Default constructor. 
+// This can NOT leave.
+// ---------------------------------------------------------
+//
+CCaeStillEncoder::CCaeStillEncoder() :
+iJpegQuality( KJpegQualityMax )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::ConstructL
+// Symbian 2nd phase constructor that can leave.
+// ---------------------------------------------------------
+//
+void CCaeStillEncoder::ConstructL()
+    {
+    CCaeStillConverter::ConstructL();
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::DoCancel
+// From CActive, implements cancellation of an outstanding request.
+// ---------------------------------------------------------
+//
+void CCaeStillEncoder::DoCancel()
+    {
+    Cleanup();
+    iState = EIdle;
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::ConvertL
+// Converts bitmap to memory JPEG image.
+// Allocates Image Conversion Library (ICL) encoder and 
+// starts conversion.
+// ---------------------------------------------------------
+//
+void CCaeStillEncoder::ConvertL()
+    {
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertL() entering" ) );
+
+    // Do not delete the encoded image here, just set to NULL.
+    iEncodedImage = NULL;
+
+    // Allocate new ICL encoder.
+    delete iEncoder;
+    iEncoder = NULL;
+    
+    // Use the default codec or the specific codec
+    iEncoder = CImageEncoder::DataNewL( iEncodedImage, 
+    	CImageEncoder::EOptionNone, (*iImageQueue)[0]->iImageTypeUid, 
+    	KNullUid, iImageCodecUid ); 
+
+    LOGTEXT3( _L( "Cae: CCaeStillEncoder::ConvertL(). Requested encoder: %x, Found encoder: %x" ), iImageCodecUid.iUid, iEncoder->ImplementationUid().iUid );
+    
+    #ifdef CAE_TEST_VERSION
+    // For simulating errors when compiled as special "test version".
+    CaeStillConvertErrorL();
+    #endif    
+
+    iState = EConvert;
+    iStatus = KRequestPending;
+    iEncoder->Convert( &iStatus, 
+                       *(*iImageQueue)[0]->iBitmap, 
+                       (*iImageQueue)[0]->iFrameImageData );
+    SetActive();
+
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConvertL() returning" ) );
+    }
+
+
+// ---------------------------------------------------------
+// CCaeStillEncoder::ConversionComplete
+// Perfoms necessary cleanup and delivers result 
+// to the client.
+// ---------------------------------------------------------
+//
+void CCaeStillEncoder::ConversionComplete( 
+    TInt aError )
+    {
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConversionComplete() entering" ) );
+    #ifdef _DEBUG
+    if ( aError ) 
+        {
+        LOGTEXT2( _L( "Cae: CCaeStillEncoder::ConversionComplete(): error detected: %d" ), aError );
+        }
+    #endif
+
+    if ( iEncoder )
+        {
+        iEncoder->Cancel();
+        delete iEncoder;
+        iEncoder = NULL;
+        }
+
+    // To be outputted via call-back.
+    CFbsBitmap* bitmap = NULL;
+    
+    if ( iImageQueue->Count() > 0 )
+        {
+        bitmap = (*iImageQueue)[0]->iBitmap;
+
+        (*iImageQueue)[0]->iBitmap = NULL; // Prevent deletion of source image.
+        delete ( *iImageQueue )[0];
+
+        // Remove item pointer from the queue and compress the queue.
+        iImageQueue->Remove( 0 );
+        }
+
+    iState = EIdle;
+
+    const TInt KZeroImageSize = 0; // Image size argument currently not in use.
+
+    // Call back the client to deliver the result image. Gives away the ownership of the bitmap 
+    // and iEncodedImage.
+    iObserver->McaeseoHBufC8ImageReady( bitmap, iEncodedImage, aError, KZeroImageSize );
+    iEncodedImage = NULL; // Ownership has been given away
+
+    LOGTEXT( _L( "Cae: CCaeStillEncoder::ConversionComplete() returning" ) );
+    }
+
+
+//  End of File