--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/collectionframework/thumbnailcreator/src/glxtngeneratethumbnailtask.cpp Fri Mar 19 09:28:59 2010 +0200
@@ -0,0 +1,335 @@
+/*
+* Copyright (c) 2008-2009 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: Classes for thumbnail-related tasks.
+*
+*/
+
+
+
+/**
+ * @internal reviewed 31/07/2007 by Simon Brooks
+ */
+
+#include "glxtngeneratethumbnailtask.h"
+
+#include <bitdev.h>
+#include <fbs.h>
+#include <glxassert.h>
+#include <glxlog.h>
+#include <glxtracer.h>
+#include <glxthumbnail.h>
+
+#include "glxtnfileinfo.h"
+#include "glxtnfileutility.h"
+#include "glxtnimageutility.h"
+#include "glxtnsavethumbnailtask.h"
+#include "glxtntaskmanager.h"
+#include "glxtnthumbnailrequest.h"
+#include "glxtnvideoutility.h"
+#include "mglxtnthumbnailcreatorclient.h"
+
+// -----------------------------------------------------------------------------
+// NewL
+// -----------------------------------------------------------------------------
+//
+CGlxtnGenerateThumbnailTask* CGlxtnGenerateThumbnailTask::NewL(
+ const TGlxThumbnailRequest& aRequestInfo,
+ CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient)
+ {
+ TRACER("CGlxtnGenerateThumbnailTask::NewL()");
+ CGlxtnGenerateThumbnailTask* task
+ = new (ELeave) CGlxtnGenerateThumbnailTask(
+ aRequestInfo, aFileUtility, aClient);
+ CleanupStack::PushL(task);
+ task->ConstructL(aRequestInfo.iBitmapHandle);
+ CleanupStack::Pop( task );
+ return task;
+ }
+
+// -----------------------------------------------------------------------------
+// Constructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask(
+ const TGlxThumbnailRequest& aRequestInfo,
+ CGlxtnFileUtility& aFileUtility, MGlxtnThumbnailCreatorClient& aClient) :
+ CGlxtnLoadThumbnailTask( KGlxtnTaskIdGenerateThumbnail,
+ aRequestInfo, aFileUtility, aClient )
+ {
+ TRACER("CGlxtnGenerateThumbnailTask::CGlxtnGenerateThumbnailTask()");
+ }
+
+// -----------------------------------------------------------------------------
+// ConstructL
+// -----------------------------------------------------------------------------
+//
+void CGlxtnGenerateThumbnailTask::ConstructL(TInt aBitmapHandle)
+ {
+ TRACER("CGlxtnGenerateThumbnailTask::ConstructL()");
+ CGlxtnLoadThumbnailTask::ConstructL( aBitmapHandle );
+
+ iImageUtility = new (ELeave) CGlxtnImageUtility(iFileUtility.FsSession());
+ }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask()
+ {
+ TRACER("CGlxtnGenerateThumbnailTask::~CGlxtnGenerateThumbnailTask()");
+ delete iImageUtility;
+ delete iVideoUtility;
+ delete iImage;
+ }
+
+// -----------------------------------------------------------------------------
+// SetManager
+// -----------------------------------------------------------------------------
+//
+void CGlxtnGenerateThumbnailTask::SetManager(CGlxtnTaskManager* aManager)
+ {
+ TRACER("void CGlxtnGenerateThumbnailTask::SetManager()");
+ iTaskManager = aManager;
+ }
+
+// -----------------------------------------------------------------------------
+// DoStartL
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnGenerateThumbnailTask::DoStartL(TRequestStatus& aStatus)
+ {
+ TRACER("CGlxtnGenerateThumbnailTask::DoStartL()");
+ iInfo = new (ELeave) CGlxtnFileInfo;
+ Client().FetchFileInfoL(iInfo, ItemId(), &aStatus);
+ iState = EStateFetchingUri;
+
+ return ETrue; // Request has been issued
+ }
+
+// -----------------------------------------------------------------------------
+// DoCancel
+// -----------------------------------------------------------------------------
+//
+void CGlxtnGenerateThumbnailTask::DoCancel()
+ {
+ TRACER("void CGlxtnGenerateThumbnailTask::DoCancel()");
+ CGlxtnLoadThumbnailTask::DoCancel();
+
+ iImageUtility->Cancel();
+
+ if ( iVideoUtility )
+ {
+ iVideoUtility->Cancel();
+ }
+
+ iFileUtility.ClearBadFileMarker();
+ }
+
+// -----------------------------------------------------------------------------
+// DoRunL
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnGenerateThumbnailTask::DoRunL(TRequestStatus& aStatus)
+ {
+ TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunL()");
+ TInt error = aStatus.Int();
+
+ TBool active = EFalse;
+
+ if ( KErrNone == error )
+ {
+ switch ( iState )
+ {
+ case EStateFetchingUri:
+ {
+ User::LeaveIfNull(iInfo);
+ iBadFileMarkerNotNeededFlag = ETrue;
+
+ iInfo->IdentifyFileL(iVideo, iProtected);
+ // leave if file is DRM protected and client has no DRM
+ // capablity
+ if ( iProtected && !iDrmAllowed )
+ {
+ User::Leave(KErrAccessDenied);
+ }
+
+ if ( !LoadThumbnailL( aStatus ) )
+ {
+ iBadFileMarkerNotNeededFlag = EFalse;
+ iFileUtility.CheckBadFileListL( iInfo->FilePath() );
+ HighQualityDecodeL( aStatus );
+ }
+ active = ETrue;
+ }
+ break;
+
+ case EStateLoading:
+ active = HandleLoadedThumbnailL( aStatus );
+ break;
+
+ case EStateDecodingThumbnail:
+ // Nothing to do
+ break;
+
+ case EStateDecodingImage:
+ {
+ iImageUtility->FreeDecoder();
+
+ // Resize empty bitmap to required size
+ TSize targetSize(iRequestedSize);
+ iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels());
+ User::LeaveIfError(iThumbnail->Resize(targetSize));
+
+ iImageUtility->FilterImageL(&aStatus, iImage, iImage, iThumbnail);
+ iState = EStateFiltering;
+ active = ETrue;
+ }
+ break;
+
+ case EStateFiltering:
+ {
+ TSize targetSize(iRequestedSize);
+ const TSize srcSize = iImage->SizeInPixels();
+ iImageUtility->AdjustSize(targetSize, iImage->SizeInPixels());
+ iImageUtility->ScaleImageL(aStatus, *iImage, srcSize, *iThumbnail, targetSize);
+ iState = EStateScaling;
+ active = ETrue;
+ }
+ break;
+
+ case EStateScaling:
+ {
+ User::LeaveIfError(iThumbnail->SetDisplayMode(KGlxThumbnailDisplayMode));
+
+ // Create task to save generated thumbnail
+ if ( Storage() && !iInfo->iTemporary
+ && !SizeRequiresDrmRights()
+ && iFileUtility.IsPersistentSize(iRequestedSize) )
+ {
+ CGlxtnSaveThumbnailTask* task
+ = CGlxtnSaveThumbnailTask::NewL(ItemId(), iInfo,
+ iRequestedSize, iThumbnail, Storage());
+ iThumbnail = NULL; // Task has ownership
+ iInfo = NULL; // Task has ownership
+ iTaskManager->AddTaskL(task);
+ }
+ break;
+ }
+
+ default:
+ GLX_ASSERT_ALWAYS( EFalse, Panic( EGlxPanicIllegalState ),
+ "CGlxtnGenerateThumbnailTask: Illegal state" );
+ break;
+ }
+ }
+ else
+ {
+ if ( EStateLoading == iState )
+ {
+ // Loading failed - generate new thumbnail instead
+ HighQualityDecodeL( aStatus );
+ active = ETrue;
+ }
+ }
+
+ if ( !active )
+ {
+ if ( !iBadFileMarkerNotNeededFlag )
+ {
+ iFileUtility.ClearBadFileMarker();
+ }
+ Client().ThumbnailFetchComplete(ItemId(),
+ EGlxThumbnailQualityHigh, error);
+ }
+
+ return active;
+ }
+
+// -----------------------------------------------------------------------------
+// DoRunError
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError)
+ {
+ TRACER("TBool CGlxtnGenerateThumbnailTask::DoRunError(TInt aError)");
+ iFileUtility.ClearBadFileMarker();
+ Client().ThumbnailFetchComplete(ItemId(), EGlxThumbnailQualityHigh, aError);
+
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// HighQualityDecodeL
+// ---------------------------------------------------------------------------
+//
+void CGlxtnGenerateThumbnailTask::HighQualityDecodeL(
+ TRequestStatus& aStatus )
+ {
+ TRACER("void CGlxtnGenerateThumbnailTask::HighQualityDecodeL()");
+ RArray<TSize> targetSizes;
+ CleanupClosePushL(targetSizes);
+ targetSizes.AppendL( TSize(iRequestedSize) );
+ if ( iVideo )
+ {
+ iVideoUtility = new (ELeave) CGlxtnVideoUtility;
+ iVideoUtility->GetVideoFrameL( &aStatus, iImage, iInfo->FilePath(), targetSizes, KGlxThumbnailDisplayMode );
+ }
+ else
+ {
+ iImage = iImageUtility->DecodeImageL( aStatus, iInfo->FilePath(),
+ targetSizes, KGlxThumbnailDisplayMode );
+ }
+ CleanupStack::PopAndDestroy(&targetSizes);
+ iState = EStateDecodingImage;
+ }
+
+// -----------------------------------------------------------------------------
+// SizeRequiresDrmRights
+// -----------------------------------------------------------------------------
+//
+TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights()
+ {
+ TRACER("TBool CGlxtnGenerateThumbnailTask::SizeRequiresDrmRights()");
+ if ( iProtected )
+ {
+ if ( iVideo )
+ {
+ return ETrue;
+ }
+
+ // Rights are required if thumbnail doesn't fit in KGlxThumbnailDrmWidth
+ // by KGlxThumbnailDrmHeight box either portrait or landscape
+ if ( (iRequestedSize.iWidth > KGlxThumbnailDrmWidth
+ || iRequestedSize.iHeight > KGlxThumbnailDrmHeight)
+ && (iRequestedSize.iWidth > KGlxThumbnailDrmHeight
+ || iRequestedSize.iHeight > KGlxThumbnailDrmWidth) )
+ {
+ return ETrue;
+ }
+
+ const TSize& imageSize(iImageUtility->OriginalSize());
+
+ // Rights are required if thumbnail is greater than 25% of image size
+ // Due to preserving aspect ratio, this will only happen if both width
+ // and height are greater than half the image width and height
+ if ( iRequestedSize.iWidth > imageSize.iWidth / 2
+ && iRequestedSize.iHeight> imageSize.iHeight / 2 )
+ {
+ return ETrue;
+ }
+ }
+
+ return EFalse;
+ }