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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_VCL_INC_CHECKSUM_HXX
#define INCLUDED_VCL_INC_CHECKSUM_HXX
#include <sal/config.h>
#include <sal/types.h>
#include <tools/solar.h>
#include <vcl/dllapi.h>
#include <boost/preprocessor/arithmetic/inc.hpp>
#include <boost/preprocessor/arithmetic/mul.hpp>
#include <boost/preprocessor/repetition/repeat_from_to.hpp>
#define BITMAP_CHECKSUM_SIZE 8
#define BITMAP_CHECKSUM_BITS BOOST_PP_MUL(BITMAP_CHECKSUM_SIZE, 8)
typedef sal_uInt64 BitmapChecksum;
typedef sal_uInt8 BitmapChecksumOctetArray[BITMAP_CHECKSUM_SIZE];
#define BITMAP_CHECKSUM_SET_OCTET(z, i, unused) \
p[i] = (sal_uInt8)(n >> BOOST_PP_MUL(8, i));
inline void BCToBCOA( BitmapChecksum n , BitmapChecksumOctetArray p )
{
BOOST_PP_REPEAT(BITMAP_CHECKSUM_SIZE , BITMAP_CHECKSUM_SET_OCTET, unused)
}
#ifdef __cplusplus
extern "C" {
#endif
/*========================================================================
*
* vcl_crc64 interface.
*
*======================================================================*/
/** Evaluate CRC64 over given data.
This function evaluates the CRC polynomial 0xEDB88320.
@param Crc [in] CRC64 over previous data or zero.
@param Data [in] data buffer.
@param DatLen [in] data buffer length.
@return new CRC64 value.
*/
VCL_DLLPUBLIC sal_uInt64 SAL_CALL vcl_crc64 (
sal_uInt64 Crc,
const void *Data, sal_uInt32 DatLen
) SAL_THROW_EXTERN_C();
VCL_DLLPUBLIC const sal_uInt64* vcl_get_crc64_table();
#ifdef __cplusplus
}
#endif
inline BitmapChecksum vcl_get_checksum (
BitmapChecksum Checksum,
const void *Data,
sal_uInt32 DatLen
)
{
return (BitmapChecksum)(vcl_crc64( Checksum, Data, DatLen ));
}
#endif // INCLUDED_VCL_INC_CHECKSUM_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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