| 0,0 → 1,74 |
|---|
| /* |
| This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop |
| Copyright (C) 2003-5 Toby Thain, toby@telegraphics.com.au |
| |
| 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include <math.h> |
| |
| |
| #ifndef M_PI |
| #define M_PI 3.14159265358979323846264338327 |
| #endif |
| |
| |
| #include "symtab.h" |
| |
| enum{ COSTABSIZE=1024,TANTABSIZE=512 }; |
| |
| extern value_type costab[],tantab[]; |
| |
| #define DEG2RAD(x) ((x)*M_PI/180.) |
| #define RAD2DEG(x) ((x)*180./M_PI) |
| |
| /* [trig functions return] an integer between -512 and 512, inclusive (Windows) |
| or -1024 and 1024, inclusive (Mac OS) */ |
| #define TRIGAMP 1024 |
| #define FFANGLE(v) ((v)*M_PI/512.) |
| #define TO_FFANGLE(v) ((v)*512./M_PI) |
| |
| #define INITRANDSEED() srand(691204) |
| |
| value_type ff_src(value_type x,value_type y,value_type z); |
| value_type ff_rad(value_type d,value_type m,value_type z); |
| value_type ff_ctl(value_type i); |
| value_type ff_val(value_type i,value_type a,value_type b); |
| value_type ff_map(value_type i,value_type n); |
| value_type ff_min(value_type a,value_type b); |
| value_type ff_max(value_type a,value_type b); |
| value_type ff_abs(value_type a); |
| value_type ff_add(value_type a,value_type b,value_type c); |
| value_type ff_sub(value_type a,value_type b,value_type c); |
| value_type ff_dif(value_type a,value_type b); |
| value_type ff_rnd(value_type a,value_type b); |
| value_type ff_mix(value_type a,value_type b,value_type n,value_type d); |
| value_type ff_scl(value_type a,value_type il,value_type ih, |
| value_type ol,value_type oh); |
| unsigned long isqrt (unsigned long x); |
| value_type ff_sqr(value_type x); |
| value_type ff_sin(value_type x); |
| value_type ff_cos(value_type x); |
| value_type ff_tan(value_type x); |
| value_type ff_r2x(value_type d,value_type m); |
| value_type ff_r2y(value_type d,value_type m); |
| value_type ff_c2d(value_type d,value_type m); |
| value_type ff_c2m(value_type d,value_type m); |
| value_type ff_get(value_type i); |
| value_type ff_put(value_type v,value_type i); |
| value_type ff_cnv(value_type m11,value_type m12,value_type m13, |
| value_type m21,value_type m22,value_type m23, |
| value_type m31,value_type m32,value_type m33, |
| value_type d ); |