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/*****************************************************************************
** This is part of the CTSim program
** Copyright (c) 1983-2001 Kevin Rosenberg
**
** $Id: fnetorderstream.cpp 7061 2003-09-07 06:34:45Z kevin $
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
** published by the Free Software Foundation.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
******************************************************************************/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include "ctsupport.h"
#include "fnetorderstream.h"
void
ConvertNetworkOrder (void* buffer, size_t bytes)
{
#ifndef WORDS_BIGENDIAN
if (bytes < 2)
return;
char* start = static_cast<char*>(buffer);
char* end = start + bytes - 1; // last byte
size_t nSwap = bytes / 2;
while (nSwap-- > 0) {
unsigned char c = *start;
*start++ = *end;
*end-- = c;
}
#endif
}
void
ConvertReverseNetworkOrder (void* buffer, size_t bytes)
{
#ifdef WORDS_BIGENDIAN
if (bytes < 2)
return;
char* start = static_cast<char*>(buffer);
char* end = start + bytes - 1; // last byte
size_t nSwap = bytes / 2;
while (nSwap-- > 0) {
unsigned char c = *start;
*start++ = *end;
*end-- = c;
}
#endif
}
void
fnetorderstream::writeInt16 (kuint16 n) {
#ifndef WORDS_BIGENDIAN
SwapBytes2 (&n);
#endif
write (reinterpret_cast<const char*>(&n), 2);
}
void
fnetorderstream::writeInt32 (kuint32 n) {
#ifndef WORDS_BIGENDIAN
SwapBytes4(&n);
#endif
write (reinterpret_cast<const char*>(&n), 4);
}
void
fnetorderstream::writeFloat32 (kfloat32 n) {
#ifndef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
write (reinterpret_cast<const char*>(&n), 4);
}
void
fnetorderstream::writeFloat64 (kfloat64 n) {
#ifndef WORDS_BIGENDIAN
SwapBytes8 (&n);
#endif
write (reinterpret_cast<const char*>(&n), 8);
}
void
fnetorderstream::readInt16 (kuint16& n) {
read (reinterpret_cast<char*>(&n), 2);
#ifndef WORDS_BIGENDIAN
SwapBytes2 (&n);
#endif
}
void
fnetorderstream::readInt32 (kuint32& n) {
read (reinterpret_cast<char*>(&n), 4);
#ifndef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
}
void
fnetorderstream::readFloat32 (kfloat32& n) {
read (reinterpret_cast<char*>(&n), 4);
#ifndef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
}
void
fnetorderstream::readFloat64 (kfloat64& n) {
read (reinterpret_cast<char*>(&n), 8);
#ifndef WORDS_BIGENDIAN
SwapBytes8 (&n);
#endif
}
void
frnetorderstream::writeInt16 (kuint16 n) {
#ifdef WORDS_BIGENDIAN
SwapBytes2 (&n);
#endif
write (reinterpret_cast<char*>(&n), 2);
}
void
frnetorderstream::writeInt32 (kuint32 n) {
#ifdef WORDS_BIGENDIAN
SwapBytes4(&n);
#endif
write (reinterpret_cast<char*>(&n), 4);
}
void
frnetorderstream::writeFloat32 (kfloat32 n) {
#ifdef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
write (reinterpret_cast<char*>(&n), 4);
}
void
frnetorderstream::writeFloat64 (kfloat64 n) {
#ifdef WORDS_BIGENDIAN
SwapBytes8 (&n);
#endif
write (reinterpret_cast<char*>(&n), 8);
}
void
frnetorderstream::readInt16 (kuint16& n) {
read (reinterpret_cast<char*>(&n), 2);
#ifdef WORDS_BIGENDIAN
SwapBytes2 (&n);
#endif
}
void
frnetorderstream::readInt32 (kuint32& n) {
read (reinterpret_cast<char*>(&n), 4);
#ifdef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
}
void
frnetorderstream::readFloat32 (kfloat32& n) {
read (reinterpret_cast<char*>(&n), 4);
#ifdef WORDS_BIGENDIAN
SwapBytes4 (&n);
#endif
}
void
frnetorderstream::readFloat64 (kfloat64& n) {
read (reinterpret_cast<char*>(&n), 8);
#ifdef WORDS_BIGENDIAN
SwapBytes8 (&n);
#endif
}
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