120 lines
2.2 KiB
C
120 lines
2.2 KiB
C
/*
|
|
fendian.c
|
|
|
|
endian neutral file read/write routines
|
|
|
|
Copyright (C) 2001 Bill Currie
|
|
|
|
Author: Bill Currie <bill@taniwha.org>
|
|
Date: 2001/7/9
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
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:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include "QF/qendian.h"
|
|
#include "QF/quakeio.h"
|
|
|
|
|
|
void
|
|
WriteFloat (QFile *file, float f)
|
|
{
|
|
// a float in C is /defined/ to be 32 bits. byte order, can, of course
|
|
// still make a mess.
|
|
union {
|
|
float f;
|
|
byte b[4];
|
|
} dat;
|
|
|
|
dat.f = LittleFloat (f);
|
|
Qwrite (file, dat.b, sizeof (dat.b));
|
|
}
|
|
|
|
void
|
|
WriteByte (QFile *file, int b)
|
|
{
|
|
byte dat = b & 0xff;
|
|
Qwrite (file, &dat, 1);
|
|
}
|
|
|
|
void
|
|
WriteShort (QFile *file, unsigned int s)
|
|
{
|
|
byte dat[2];
|
|
|
|
dat[0] = s & 0xff;
|
|
dat[1] = (s >> 8) & 0xff;
|
|
Qwrite (file, dat, sizeof (dat));
|
|
}
|
|
|
|
void
|
|
WriteLong (QFile *file, unsigned int l)
|
|
{
|
|
byte dat[4];
|
|
|
|
dat[0] = l & 0xff;
|
|
dat[1] = (l >> 8) & 0xff;
|
|
dat[2] = (l >> 16) & 0xff;
|
|
dat[3] = (l >> 24) & 0xff;
|
|
Qwrite (file, dat, sizeof (dat));
|
|
}
|
|
|
|
float
|
|
ReadFloat (QFile *file)
|
|
{
|
|
// a float in C is /defined/ to be 32 bits. byte order, can, of course
|
|
// still make a mess.
|
|
union {
|
|
float f;
|
|
byte b[4];
|
|
} dat;
|
|
|
|
Qread (file, dat.b, sizeof (dat.b));
|
|
return LittleFloat (dat.f);
|
|
}
|
|
|
|
byte
|
|
ReadByte (QFile *file)
|
|
{
|
|
byte dat;
|
|
Qread (file, &dat, 1);
|
|
return dat;
|
|
}
|
|
|
|
unsigned short
|
|
ReadShort (QFile *file)
|
|
{
|
|
byte dat[2];
|
|
|
|
Qread (file, dat, sizeof (dat));
|
|
return (dat[1] << 8) | dat[0];
|
|
}
|
|
|
|
unsigned int
|
|
ReadLong (QFile *file)
|
|
{
|
|
byte dat[4];
|
|
|
|
Qread (file, dat, sizeof (dat));
|
|
return (dat[3] << 24) | (dat[2] << 16) | (dat[1] << 8) | dat[0];
|
|
}
|