Subversion Repositories filter_foundry

/*

    This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop

    Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au

    Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft

    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 };

void init_trigtab();

extern double 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) */

#ifdef WIN_ENV

#define TRIGAMP 512

#else

#define TRIGAMP 1024

#endif

#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);

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_c2d_negated(value_type d, value_type m); // not a function!

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 );

value_type ff_rst(value_type seed);