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https://git.code.sf.net/p/quake/quakeforge
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119 lines
2.2 KiB
C
119 lines
2.2 KiB
C
/*
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fendian.c
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endian neutral file read/write routines
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Copyright (C) 2001 Bill Currie
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Author: Bill Currie <bill@taniwha.org>
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Date: 2001/7/9
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, 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 "QF/qendian.h"
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#include "QF/quakeio.h"
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void
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WriteFloat (QFile *file, float f)
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{
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// a float in C is /defined/ to be 32 bits. byte order, can, of course
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// still make a mess.
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union {
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float f;
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byte b[4];
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} dat;
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dat.f = LittleFloat (f);
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Qwrite (file, dat.b, sizeof (dat.b));
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}
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void
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WriteByte (QFile *file, int b)
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{
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byte dat = b & 0xff;
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Qwrite (file, &dat, 1);
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}
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void
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WriteShort (QFile *file, unsigned int s)
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{
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byte dat[2];
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dat[0] = s & 0xff;
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dat[1] = (s >> 8) & 0xff;
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Qwrite (file, dat, sizeof (dat));
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}
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void
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WriteLong (QFile *file, unsigned int l)
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{
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byte dat[4];
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dat[0] = l & 0xff;
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dat[1] = (l >> 8) & 0xff;
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dat[2] = (l >> 16) & 0xff;
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dat[3] = (l >> 24) & 0xff;
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Qwrite (file, dat, sizeof (dat));
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}
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float
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ReadFloat (QFile *file)
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{
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// a float in C is /defined/ to be 32 bits. byte order, can, of course
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// still make a mess.
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union {
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float f;
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byte b[4];
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} dat;
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Qread (file, dat.b, sizeof (dat.b));
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return LittleFloat (dat.f);
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}
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byte
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ReadByte (QFile *file)
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{
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byte dat;
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Qread (file, &dat, 1);
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return dat;
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}
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unsigned short
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ReadShort (QFile *file)
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{
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byte dat[2];
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Qread (file, dat, sizeof (dat));
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return (dat[1] << 8) | dat[0];
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}
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unsigned int
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ReadLong (QFile *file)
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{
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byte dat[4];
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Qread (file, dat, sizeof (dat));
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return (dat[3] << 24) | (dat[2] << 16) | (dat[1] << 8) | dat[0];
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}
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