imagingmodules/jp2kcodec/Inc/JP2KImageUtils.inl
changeset 0 469c91dae73b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imagingmodules/jp2kcodec/Inc/JP2KImageUtils.inl	Thu Dec 17 09:22:31 2009 +0200
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 2003, 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:  Basic utilities to handle conversion and object safe deletion.
+*
+*/
+
+
+#ifndef __JP2KIMAGEUTILS_INL__
+#define __JP2KIMAGEUTILS_INL__
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// PtrReadUtil::ReadBigEndianUint16
+// Reads big endian value from given buffer.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+inline TUint16 PtrReadUtil::ReadBigEndianUint16( const TUint8* aPtr )
+    {
+    return TUint16( ( aPtr[0] << 8 ) | aPtr[1] );
+    }
+
+// -----------------------------------------------------------------------------
+// PtrReadUtil::ReadBigEndianUint32
+// Reads big endian value from given buffer.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+inline TUint32 PtrReadUtil::ReadBigEndianUint32( const TUint8* aPtr )
+    {
+    return TUint32( ( aPtr[0] << 24 ) | ( aPtr[1] << 16 ) | ( aPtr[2] << 8 ) | aPtr[3] );
+    }
+
+// -----------------------------------------------------------------------------
+// PtrReadUtil::ReadBigEndianUint16Inc
+// Reads big endian value from given buffer and increments pointer.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+inline TUint16 PtrReadUtil::ReadBigEndianUint16Inc( const TUint8*& aPtr )
+    {
+    TUint16 result = ReadBigEndianUint16( aPtr );
+    aPtr += 2;
+    return result;
+    }
+
+// -----------------------------------------------------------------------------
+// PtrReadUtil::ReadBigEndianUint32Inc
+// Reads big endian value from given buffer and increments pointer.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+inline TUint32 PtrReadUtil::ReadBigEndianUint32Inc( const TUint8*& aPtr )
+    {
+    TUint32 result = ReadBigEndianUint32( aPtr );
+    aPtr += 4;
+    return result;
+    }
+
+#endif