mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-24 11:41:02 +00:00
170 lines
3 KiB
C
170 lines
3 KiB
C
/*
|
|
rua_math.c
|
|
|
|
Floating point math api for ruamoko
|
|
|
|
Copyright (C) 2003 Robert F Merrill
|
|
|
|
Author: Robert F Merrill
|
|
Date: 2003-01-22
|
|
|
|
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
|
|
|
|
static __attribute__ ((unused)) const char rcsid[] =
|
|
"$Id$";
|
|
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
#include "QF/cmd.h"
|
|
#include "QF/hash.h"
|
|
#include "QF/progs.h"
|
|
#include "QF/sys.h"
|
|
|
|
#include "rua_internal.h"
|
|
|
|
static void
|
|
bi_sin (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = sin (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_cos (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = cos (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_tan (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = tan (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_asin (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = asin (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_acos (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = acos (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_atan (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = atan (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_atan2 (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = atan2 (P_FLOAT (pr, 0), P_FLOAT (pr, 1));
|
|
}
|
|
|
|
static void
|
|
bi_log (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = log (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_log10 (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = log10 (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_pow (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = pow (P_FLOAT (pr, 0), P_FLOAT (pr, 1));
|
|
}
|
|
|
|
static void
|
|
bi_sinh (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = sinh (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_cosh (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = cosh (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_tanh (progs_t *pr)
|
|
{
|
|
R_FLOAT (pr) = tanh (P_FLOAT (pr, 0));
|
|
}
|
|
|
|
static void
|
|
bi_asinh (progs_t *pr)
|
|
{
|
|
double y = P_FLOAT (pr, 0);
|
|
R_FLOAT (pr) = log (y + sqrt (y * y + 1));
|
|
}
|
|
|
|
static void
|
|
bi_acosh (progs_t *pr)
|
|
{
|
|
double y = P_FLOAT (pr, 0);
|
|
R_FLOAT (pr) = log (y + sqrt (y * y - 1));
|
|
}
|
|
|
|
static void
|
|
bi_atanh (progs_t *pr)
|
|
{
|
|
double y = P_FLOAT (pr, 0);
|
|
R_FLOAT (pr) = log ((1 + y) / (1 - y)) / 2;
|
|
}
|
|
|
|
static builtin_t builtins[] = {
|
|
{"sin", bi_sin, -1},
|
|
{"cos", bi_cos, -1},
|
|
{"tan", bi_tan, -1},
|
|
{"asin", bi_asin, -1},
|
|
{"acos", bi_acos, -1},
|
|
{"atan", bi_atan, -1},
|
|
{"atan2", bi_atan2, -1},
|
|
{"log", bi_log, -1},
|
|
{"log10", bi_log10, -1},
|
|
{"pow", bi_pow, -1},
|
|
{"sinh", bi_sinh, -1},
|
|
{"cosh", bi_cosh, -1},
|
|
{"tanh", bi_tanh, -1},
|
|
{"asinh", bi_asinh, -1},
|
|
{"acosh", bi_acosh, -1},
|
|
{"atanh", bi_atanh, -1},
|
|
{0}
|
|
};
|
|
|
|
void
|
|
RUA_Math_Init (progs_t *pr, int secure)
|
|
{
|
|
PR_RegisterBuiltins (pr, builtins);
|
|
}
|