camerauis/cameraapp/generic/src/cameracontroller/cambuffer.cpp
branchRCL_3
changeset 24 bac7acad7cb3
parent 0 1ddebce53859
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/src/cameracontroller/cambuffer.cpp	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2007 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 CCamBuffer class.
+*                Temporary own implementation of MCameraBuffer. 
+*                To be replaced by ECam CCameraBuffer.
+*
+*/
+
+
+
+#include <fbs.h>
+
+#include "camlogging.h"
+#include "cambuffer.h"
+
+
+// ---------------------------------------------------------------------------
+// NewL
+// Takes ownership of aData, but not aBitmap
+// ---------------------------------------------------------------------------
+//
+CCamBuffer* 
+CCamBuffer::NewL( const CFbsBitmap& aBitmap, 
+                        HBufC8*     aData )
+  {
+  CCamBuffer* self = CCamBuffer::NewLC( aBitmap, aData );
+  CleanupStack::Pop( self );
+  return self;
+  }
+
+// ---------------------------------------------------------------------------
+// NewLC
+// Takes ownership of aData, but not aBitmap
+// ---------------------------------------------------------------------------
+//
+CCamBuffer* 
+CCamBuffer::NewLC( const CFbsBitmap& aBitmap, 
+                         HBufC8*     aData )
+  {
+  CCamBuffer* self = new (ELeave) CCamBuffer;
+  CleanupStack::PushL( self );
+  self->ConstructL( aBitmap, aData );
+  return self;
+  }
+
+
+// ---------------------------------------------------------------------------
+// NewL
+// Takes ownership of both objects.
+// ---------------------------------------------------------------------------
+//
+CCamBuffer* 
+CCamBuffer::NewL( CFbsBitmap* aBitmap, 
+                  HBufC8*     aData )
+  {
+  CCamBuffer* self = CCamBuffer::NewLC( aBitmap, aData );
+  CleanupStack::Pop( self );
+  return self;
+  }
+
+// ---------------------------------------------------------------------------
+// NewLC
+// Takes ownership of both objects.
+// ---------------------------------------------------------------------------
+//
+CCamBuffer* 
+CCamBuffer::NewLC( CFbsBitmap* aBitmap, 
+                   HBufC8*     aData )
+  {
+  CCamBuffer* self = new (ELeave) CCamBuffer;
+  CleanupStack::PushL( self );
+  self->ConstructL( aBitmap, aData );
+  return self;
+  }
+
+        
+// ---------------------------------------------------------------------------
+// NumFrames
+//
+// Number of frames available in the buffer.
+// ---------------------------------------------------------------------------
+//
+TInt 
+CCamBuffer::NumFrames()
+  {
+  return 1;
+  }
+
+
+// ---------------------------------------------------------------------------
+// DataL
+//
+// Frame data as descriptor.
+// *not supported here*
+// ---------------------------------------------------------------------------
+//
+TDesC8* 
+CCamBuffer::DataL( TInt aFrameIndex )
+  {
+  if( aFrameIndex != 0 || !iImageData )
+    User::Leave( KErrNotSupported );
+
+  return iImageData; 
+  }
+
+// ---------------------------------------------------------------------------
+// BitmapL
+//
+// Frame data as bitmap.
+// ---------------------------------------------------------------------------
+//
+CFbsBitmap& 
+CCamBuffer::BitmapL( TInt aFrameIndex )
+  {
+  if( aFrameIndex != 0 || !iBitmap )
+    User::Leave( KErrNotFound );
+
+  return *iBitmap;
+  }
+
+// ---------------------------------------------------------------------------
+// DataL
+//
+// Frame data as chunk.
+// *not supported here*
+// ---------------------------------------------------------------------------
+//
+RChunk& 
+CCamBuffer::ChunkL()
+  {
+  User::Leave( KErrNotSupported );
+  
+  return iChunk;
+  }
+
+// ---------------------------------------------------------------------------
+// ChunkOffsetL
+//
+// Frame data offset in chunk.
+// *not supported here*
+// ---------------------------------------------------------------------------
+//
+TInt 
+CCamBuffer::ChunkOffsetL( TInt /*aFrameIndex*/ )
+  {
+  User::Leave( KErrNotSupported );
+  
+  return 0;
+  }
+
+// ---------------------------------------------------------------------------
+// FrameSize
+//
+// Frame data size.
+// *not supported here, as only bitmap supported*
+// ---------------------------------------------------------------------------
+//
+TInt 
+CCamBuffer::FrameSize( TInt /*aFrameIndex*/ )
+  {
+  return -1;
+  }
+
+// ---------------------------------------------------------------------------
+// Release
+//
+// Release this buffer.
+// Simply deletes this object.
+// ---------------------------------------------------------------------------
+//
+void 
+CCamBuffer::Release()
+  {
+  delete this;
+  }
+
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// ConstructL
+//
+// ---------------------------------------------------------------------------
+//
+void 
+CCamBuffer::ConstructL( const CFbsBitmap& aBitmap, 
+                              HBufC8*     aData )
+  {
+  PRINT( _L("CamTest => CCamBuffer::ConstructL") );
+    
+  
+  iBitmap = new (ELeave) CFbsBitmap;
+  TInt error = iBitmap->Duplicate( aBitmap.Handle() );
+
+  iImageData = aData;
+
+  PRINT1( _L("CamTest <> duplicate bitmap status(%d)"), error );
+
+  User::LeaveIfError( error );
+
+  PRINT( _L("CamTest <= CCamBuffer::ConstructL") );
+  }
+
+// ---------------------------------------------------------------------------
+// ConstructL
+//
+// ---------------------------------------------------------------------------
+//
+void 
+CCamBuffer::ConstructL( CFbsBitmap* aBitmap, 
+                        HBufC8*     aData )
+  {
+  PRINT( _L("CamTest => CCamBuffer::ConstructL") );
+    
+  iImageData = aData;
+  iBitmap    = aBitmap;
+
+  PRINT( _L("CamTest <= CCamBuffer::ConstructL") );
+  }
+
+
+// ---------------------------------------------------------------------------
+// Constructor
+//
+// ---------------------------------------------------------------------------
+//
+CCamBuffer::CCamBuffer()
+  : iBitmap( NULL ),
+    iImageData( NULL ),
+    iOwnBitmap( ETrue ),
+    iOwnData( ETrue )
+  {
+  }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// *private, because Release() is supposed to be used.*
+// ---------------------------------------------------------------------------
+//
+CCamBuffer::~CCamBuffer()
+  {
+  PRINT( _L("CamTest => ~CCamBuffer") );
+
+  PRINT( _L("CamTest <> ~CCamBuffer: Close RChunk..") );
+  iChunk.Close();
+  PRINT( _L("CamTest <> ~CCamBuffer: delete CFbsBitmap..") );
+  delete iBitmap;
+  PRINT( _L("CamTest <> ~CCamBuffer: delete HBufC8*..") );
+  delete iImageData;
+
+  PRINT( _L("CamTest <= ~CCamBuffer") );
+  }
+
+
+// end of file