blob: 3ef36cf8bf4d227427c5842ee0ef9f84e031df2a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/* catdvi - get text from DVI files
Copyright (C) 1999 Antti-Juhani Kaijanaho <gaia@iki.fi>
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 the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef FIXWORD_H
#define FIXWORD_H
#include "bytesex.h"
/* fix_word is used in TFM files; read the TFM file spec for more
info. */
#define FW_FIX_WORD_BIT 32
#define FW_WHOLEPART_BIT 12
#define FW_FRACTION_BIT (FW_FIX_WORD_BIT - FW_WHOLEPART_BIT)
typedef sint32 fix_word_t;
/* fix_word_t read_fw(FILE *); */
#define read_fw(fp) (s_readbigendiannumber(4,(fp)))
double fw2double(fix_word_t);
/* fix_word_t double2fw(double); */
#define double2fw(dbl) ((fix_word_t) ((dbl) * (1 << FW_FRACTION_BIT)))
#define fw2int(fw) ((fw) / (1 << FW_FRACTION_BIT))
/* fix_word_t fw_negate(fix_word_t); */
#define fw_negate(fw) (-(fw))
/* fix_word_t fw_sum(fix_word_t, fix_word_t); */
#define fw_sum(fw1,fw2) ((fw1) + (fw2))
/* Calculates x * y. */
fix_word_t fw_prod(fix_word_t x, fix_word_t y);
#endif /* FIXWORD_H */
|
