ByteChucker.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * This file incorporates work covered by the following license notice:
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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 */
#ifndef INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
#define INCLUDED_PACKAGE_INC_BYTECHUCKER_HXX
 
#include <com/sun/star/uno/Sequence.h>
#include <com/sun/star/uno/Reference.h>
 
namespace com::sun::star {
    namespace io { class XSeekable; class XOutputStream; }
}
class ByteChucker final
{
    css::uno::Reference < css::io::XOutputStream > xStream;
    css::uno::Reference < css::io::XSeekable > xSeek;
    css::uno::Sequence < sal_Int8 > a2Sequence, a4Sequence, a8Sequence;
    sal_Int8 * const p2Sequence, * const p4Sequence, * const p8Sequence;
 
public:
    ByteChucker (css::uno::Reference<css::io::XOutputStream> const & xOstream);
    ~ByteChucker();
 
    void WriteBytes( const css::uno::Sequence< sal_Int8 >& aData );
 
    sal_Int64 GetPosition();
 
    void WriteInt16(sal_Int16 nInt16)
    {
        p2Sequence[0] = static_cast< sal_Int8 >((nInt16 >>  0 ) & 0xFF);
        p2Sequence[1] = static_cast< sal_Int8 >((nInt16 >>  8 ) & 0xFF);
        WriteBytes( a2Sequence );
    }
 
    void WriteInt32(sal_Int32 nInt32)
    {
        p4Sequence[0] = static_cast< sal_Int8 >((nInt32 >>  0 ) & 0xFF);
        p4Sequence[1] = static_cast< sal_Int8 >((nInt32 >>  8 ) & 0xFF);
        p4Sequence[2] = static_cast< sal_Int8 >((nInt32 >> 16 ) & 0xFF);
        p4Sequence[3] = static_cast< sal_Int8 >((nInt32 >> 24 ) & 0xFF);
        WriteBytes( a4Sequence );
    }
 
    void WriteUInt32(sal_uInt32 nuInt32)
    {
        p4Sequence[0] = static_cast < sal_Int8 > ((nuInt32 >>  0 ) & 0xFF);
        p4Sequence[1] = static_cast < sal_Int8 > ((nuInt32 >>  8 ) & 0xFF);
        p4Sequence[2] = static_cast < sal_Int8 > ((nuInt32 >> 16 ) & 0xFF);
        p4Sequence[3] = static_cast < sal_Int8 > ((nuInt32 >> 24 ) & 0xFF);
        WriteBytes( a4Sequence );
    }
 
    void WriteUInt64(sal_uInt64 nuInt64)
    {
        p8Sequence[0] = static_cast<sal_Int8>((nuInt64 >>  0) & 0xFF);
        p8Sequence[1] = static_cast<sal_Int8>((nuInt64 >>  8) & 0xFF);
        p8Sequence[2] = static_cast<sal_Int8>((nuInt64 >> 16) & 0xFF);
        p8Sequence[3] = static_cast<sal_Int8>((nuInt64 >> 24) & 0xFF);
        p8Sequence[4] = static_cast<sal_Int8>((nuInt64 >> 32) & 0xFF);
        p8Sequence[5] = static_cast<sal_Int8>((nuInt64 >> 40) & 0xFF);
        p8Sequence[6] = static_cast<sal_Int8>((nuInt64 >> 48) & 0xFF);
        p8Sequence[7] = static_cast<sal_Int8>((nuInt64 >> 56) & 0xFF);
        WriteBytes( a8Sequence );
    }
};
 
#endif
 
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