imagingmodules/jp2kcodec/Inc/JP2KImageUtils.inl
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/*
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* Copyright (c) 2003, 2004 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Basic utilities to handle conversion and object safe deletion.
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*
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*/
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#ifndef __JP2KIMAGEUTILS_INL__
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#define __JP2KIMAGEUTILS_INL__
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// ============================ MEMBER FUNCTIONS ===============================
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// -----------------------------------------------------------------------------
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// PtrReadUtil::ReadBigEndianUint16
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// Reads big endian value from given buffer.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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inline TUint16 PtrReadUtil::ReadBigEndianUint16( const TUint8* aPtr )
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    {
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    return TUint16( ( aPtr[0] << 8 ) | aPtr[1] );
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    }
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// -----------------------------------------------------------------------------
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// PtrReadUtil::ReadBigEndianUint32
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// Reads big endian value from given buffer.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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inline TUint32 PtrReadUtil::ReadBigEndianUint32( const TUint8* aPtr )
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    {
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    return TUint32( ( aPtr[0] << 24 ) | ( aPtr[1] << 16 ) | ( aPtr[2] << 8 ) | aPtr[3] );
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    }
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// -----------------------------------------------------------------------------
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// PtrReadUtil::ReadBigEndianUint16Inc
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// Reads big endian value from given buffer and increments pointer.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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inline TUint16 PtrReadUtil::ReadBigEndianUint16Inc( const TUint8*& aPtr )
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    {
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    TUint16 result = ReadBigEndianUint16( aPtr );
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    aPtr += 2;
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    return result;
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    }
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// -----------------------------------------------------------------------------
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// PtrReadUtil::ReadBigEndianUint32Inc
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// Reads big endian value from given buffer and increments pointer.
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// (other items were commented in a header).
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// -----------------------------------------------------------------------------
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//
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inline TUint32 PtrReadUtil::ReadBigEndianUint32Inc( const TUint8*& aPtr )
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    {
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    TUint32 result = ReadBigEndianUint32( aPtr );
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    aPtr += 4;
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    return result;
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    }
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#endif