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-rw-r--r--dviware/catdvi/fixword.h54
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diff --git a/dviware/catdvi/fixword.h b/dviware/catdvi/fixword.h
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+/* 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 */