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44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*****************************************************************************
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* swab.c: swab() replacement
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*****************************************************************************
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* Copyright © 2009 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdlib.h>
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#include <stdint.h>
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void swab( const void *p_src_, void *p_dst_, ssize_t n )
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{
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const uint8_t *p_src = p_src_;
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uint8_t *p_dst = p_dst_;
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if( n < 0 )
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return;
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for( ssize_t i = 0; i < n-1; i += 2 )
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{
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uint8_t i_tmp = p_src[i+0];
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p_dst[i+0] = p_src[i+1];
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p_dst[i+1] = i_tmp;
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}
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}
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