mirror of
https://github.com/cmusphinx/sphinxtrain.git
synced 2026-06-16 13:14:30 +00:00
David Huggins-Daines
dc157d12e7
Note that most of it is not at all useful. We also had to use an older version than what's in PocketSphinx because SphinxTrain has different needs. Another reorganization will be done soon.
99 lines
3.7 KiB
C
99 lines
3.7 KiB
C
/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/* ====================================================================
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* Copyright (c) 1999-2001 Carnegie Mellon University. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* This work was supported in part by funding from the Defense Advanced
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* Research Projects Agency and the National Science Foundation of the
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* United States of America, and the CMU Sphinx Speech Consortium.
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*
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* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
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* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
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* NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ====================================================================
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*
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*/
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/*
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* byteorder.h -- Byte swapping ordering macros.
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*
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* **********************************************
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* CMU ARPA Speech Project
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*
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* Copyright (c) 1996 Carnegie Mellon University.
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* ALL RIGHTS RESERVED.
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* **********************************************
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*
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* HISTORY
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*
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* $Log: byteorder.h,v $
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* Revision 1.8 2005/09/01 21:09:54 dhdfu
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* Really, actually, truly consolidate byteswapping operations into
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* byteorder.h. Where unconditional byteswapping is needed, SWAP_INT32()
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* and SWAP_INT16() are to be used. The WORDS_BIGENDIAN macro from
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* autoconf controls the functioning of the conditional swap macros
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* (SWAP_?[LW]) whose names and semantics have been regularized.
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* Private, adhoc macros have been removed.
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*
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*/
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#ifndef __S2_BYTEORDER_H__
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#define __S2_BYTEORDER_H__ 1
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/* Macro to byteswap an int16 variable. x = ptr to variable */
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#define SWAP_INT16(x) *(x) = ((0x00ff & (*(x))>>8) | (0xff00 & (*(x))<<8))
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/* Macro to byteswap an int32 variable. x = ptr to variable */
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#define SWAP_INT32(x) *(x) = ((0x000000ff & (*(x))>>24) | \
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(0x0000ff00 & (*(x))>>8) | \
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(0x00ff0000 & (*(x))<<8) | \
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(0xff000000 & (*(x))<<24))
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/* Macro to byteswap a float32 variable. x = ptr to variable */
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#define SWAP_FLOAT32(x) SWAP_INT32((int32 *) x)
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/* Macro to byteswap a float64 variable. x = ptr to variable */
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#define SWAP_FLOAT64(x) { int *low = (int *) (x), *high = (int *) (x) + 1,\
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temp;\
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SWAP_INT32(low); SWAP_INT32(high);\
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temp = *low; *low = *high; *high = temp;}
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#ifdef WORDS_BIGENDIAN
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#define SWAP_BE_64(x)
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#define SWAP_BE_32(x)
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#define SWAP_BE_16(x)
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#define SWAP_LE_64(x) SWAP_FLOAT64(x)
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#define SWAP_LE_32(x) SWAP_INT32(x)
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#define SWAP_LE_16(x) SWAP_INT16(x)
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#else
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#define SWAP_LE_64(x)
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#define SWAP_LE_32(x)
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#define SWAP_LE_16(x)
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#define SWAP_BE_64(x) SWAP_FLOAT64(x)
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#define SWAP_BE_32(x) SWAP_INT32(x)
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#define SWAP_BE_16(x) SWAP_INT16(x)
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#endif
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#endif
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