mirror of
https://git.code.sf.net/p/quake/quakeforge
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199 lines
3.4 KiB
C
199 lines
3.4 KiB
C
/*
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rua_math.c
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Floating point math api for ruamoko
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Copyright (C) 2003 Robert F Merrill
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Author: Robert F Merrill
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Date: 2003-01-22
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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 <stdlib.h>
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#include <math.h>
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#include "QF/cmd.h"
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#include "QF/hash.h"
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#include "QF/progs.h"
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#include "QF/sys.h"
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#include "rua_internal.h"
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static void
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bi_sin (progs_t *pr)
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{
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R_FLOAT (pr) = sinf (P_FLOAT (pr, 0));
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}
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static void
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bi_cos (progs_t *pr)
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{
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R_FLOAT (pr) = cosf (P_FLOAT (pr, 0));
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}
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static void
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bi_tan (progs_t *pr)
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{
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R_FLOAT (pr) = tanf (P_FLOAT (pr, 0));
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}
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static void
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bi_asin (progs_t *pr)
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{
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R_FLOAT (pr) = asinf (P_FLOAT (pr, 0));
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}
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static void
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bi_acos (progs_t *pr)
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{
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R_FLOAT (pr) = acosf (P_FLOAT (pr, 0));
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}
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static void
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bi_atan (progs_t *pr)
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{
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R_FLOAT (pr) = atanf (P_FLOAT (pr, 0));
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}
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static void
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bi_atan2 (progs_t *pr)
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{
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R_FLOAT (pr) = atan2f (P_FLOAT (pr, 0), P_FLOAT (pr, 1));
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}
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static void
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bi_log (progs_t *pr)
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{
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R_FLOAT (pr) = logf (P_FLOAT (pr, 0));
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}
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static void
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bi_log2 (progs_t *pr)
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{
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#ifdef HAVE_LOG2F
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R_FLOAT (pr) = log2f (P_FLOAT (pr, 0));
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#else
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R_FLOAT (pr) = logf (P_FLOAT (pr, 0)) / M_LOG2E;
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#endif
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}
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static void
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bi_log10 (progs_t *pr)
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{
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R_FLOAT (pr) = log10f (P_FLOAT (pr, 0));
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}
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static void
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bi_pow (progs_t *pr)
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{
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R_FLOAT (pr) = powf (P_FLOAT (pr, 0), P_FLOAT (pr, 1));
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}
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static void
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bi_sqrt (progs_t *pr)
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{
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R_FLOAT (pr) = sqrtf (P_FLOAT (pr, 0));
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}
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static void
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bi_cbrt (progs_t *pr)
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{
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R_FLOAT (pr) = cbrtf (P_FLOAT (pr, 0));
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}
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static void
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bi_hypot (progs_t *pr)
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{
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R_FLOAT (pr) = hypotf (P_FLOAT (pr, 0), P_FLOAT (pr, 1));
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}
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static void
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bi_sinh (progs_t *pr)
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{
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R_FLOAT (pr) = sinhf (P_FLOAT (pr, 0));
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}
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static void
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bi_cosh (progs_t *pr)
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{
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R_FLOAT (pr) = coshf (P_FLOAT (pr, 0));
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}
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static void
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bi_tanh (progs_t *pr)
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{
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R_FLOAT (pr) = tanhf (P_FLOAT (pr, 0));
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}
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static void
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bi_asinh (progs_t *pr)
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{
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double y = P_FLOAT (pr, 0);
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R_FLOAT (pr) = logf (y + sqrtf (y * y + 1));
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}
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static void
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bi_acosh (progs_t *pr)
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{
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double y = P_FLOAT (pr, 0);
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R_FLOAT (pr) = logf (y + sqrtf (y * y - 1));
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}
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static void
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bi_atanh (progs_t *pr)
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{
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double y = P_FLOAT (pr, 0);
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R_FLOAT (pr) = logf ((1 + y) / (1 - y)) / 2;
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}
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static builtin_t builtins[] = {
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{"sin", bi_sin, -1},
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{"cos", bi_cos, -1},
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{"tan", bi_tan, -1},
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{"asin", bi_asin, -1},
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{"acos", bi_acos, -1},
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{"atan", bi_atan, -1},
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{"atan2", bi_atan2, -1},
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{"log", bi_log, -1},
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{"log2", bi_log2, -1},
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{"log10", bi_log10, -1},
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{"pow", bi_pow, -1},
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{"sqrt", bi_sqrt, -1},
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{"cbrt", bi_cbrt, -1},
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{"hypot", bi_hypot, -1},
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{"sinh", bi_sinh, -1},
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{"cosh", bi_cosh, -1},
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{"tanh", bi_tanh, -1},
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{"asinh", bi_asinh, -1},
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{"acosh", bi_acosh, -1},
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{"atanh", bi_atanh, -1},
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{0}
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};
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void
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RUA_Math_Init (progs_t *pr, int secure)
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{
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PR_RegisterBuiltins (pr, builtins);
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}
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