srsf/devasr/src/devasrresourcehandler.cpp
branchRCL_3
changeset 19 e36f3802f733
parent 0 bf1d17376201
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srsf/devasr/src/devasrresourcehandler.cpp	Wed Sep 01 12:29:17 2010 +0100
@@ -0,0 +1,144 @@
+/*
+* Copyright (c) 2004 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:  This class reads the resource file and provides access to the
+*               information read from the resource file.
+*
+*/
+
+
+// INCLUDE FILES
+#include <f32file.h>
+#include <barsc.h>
+#include <bautils.h>
+#include <barsread.h>
+#include "devasrresourcehandler.h"
+#include <nssdevasr.rsg>
+#include "rubydebug.h"
+#include <data_caging_path_literals.hrh>
+
+// LOCAL CONSTANTS AND MACROS
+_LIT( KResourceFileName, "nssdevasr.rsc" );
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CDevASRResourceHandler::CDevASRResourceHandler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CDevASRResourceHandler::CDevASRResourceHandler()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CDevASRResourceHandler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CDevASRResourceHandler::ConstructL()
+    {
+    RUBY_DEBUG_BLOCK( "CDevASRResourceHandler::ConstructL()" );
+
+    ReadResourceFileL();
+    }
+
+// -----------------------------------------------------------------------------
+// CDevASRResourceHandler::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CDevASRResourceHandler* CDevASRResourceHandler::NewL()
+    {
+    CDevASRResourceHandler* self = new ( ELeave ) CDevASRResourceHandler();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); // Self
+    return self;
+    }
+
+// Destructor
+CDevASRResourceHandler::~CDevASRResourceHandler()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CDevASRResourceHandler::ReadResourceFileL
+// Reads the data from the resource file.
+// -----------------------------------------------------------------------------
+//
+void CDevASRResourceHandler::ReadResourceFileL()
+    {
+    RUBY_DEBUG_BLOCK( "CDevASRResourceHandler::ReadResourceFileL()" );
+
+    // letters for drives in search order
+    const TBuf<2> KResourceDrives = _L("cz"); 
+
+    // load resources
+    RResourceFile resourceFile;
+    RFs fs;
+    User::LeaveIfError( fs.Connect() );
+    CleanupClosePushL( fs );
+    
+    TFileName name;
+    TInt i( 0 );
+    // try to find from the first driver
+    name.Append( KResourceDrives[i] );
+    name.Append( ':' );
+    name.Append( KDC_RESOURCE_FILES_DIR );
+    name.Append( KResourceFileName );
+
+    TBool found( EFalse );
+    
+    while ( !found && i < KResourceDrives.Length() )
+        {
+        name[0] = KResourceDrives[i++];
+       
+        if ( BaflUtils::FileExists(fs, name) )
+            {
+            // open resource
+            resourceFile.OpenL( fs, name );
+            CleanupClosePushL( resourceFile );
+            found = ETrue;
+            }
+        }
+            
+    if ( !found )
+        {
+        User::Leave( KErrNotFound );
+        }
+
+    
+    HBufC8* res = resourceFile.AllocReadLC( DEVASRINFO );
+
+    TResourceReader theReader;
+    theReader.SetBuffer( res );
+
+    iSamplingRate = theReader.ReadInt16();
+    iBitsPerSample = theReader.ReadInt16();
+    iMicrophoneGain = theReader.ReadInt16();
+    iSpeakerVolume = theReader.ReadInt16();
+    iSilenceFrames = theReader.ReadInt16();
+    iPadEndFrames = theReader.ReadInt16();
+    iPadStartFrames = theReader.ReadInt16();
+    iBufferSize = theReader.ReadInt16();
+    iBuffersInWins = theReader.ReadInt16();
+    iBuffersInThumb = theReader.ReadInt16();
+
+    // Cleanup res, fs, resourceFile
+    CleanupStack::PopAndDestroy( 3 );
+    }
+
+// End of File