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/*
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/*
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    This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
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    This file is part of "Filter Foundry", a filter plugin for Adobe Photoshop
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    Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
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    Copyright (C) 2003-2009 Toby Thain, toby@telegraphics.com.au
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    Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
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    Copyright (C) 2018-2021 Daniel Marschall, ViaThinkSoft
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    This program is free software; you can redistribute it and/or modify
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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    the Free Software Foundation; either version 2 of the License, or
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    (at your option) any later version.
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    (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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    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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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    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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    You should have received a copy of the GNU General Public License
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    along with this program; if not, write to the Free Software
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    along with this program; if not, write to the Free Software
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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*/
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#include <math.h>
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#include <math.h>
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#ifndef M_PI
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#ifndef M_PI
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        #define M_PI 3.14159265358979323846264338327
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        #define M_PI 3.14159265358979323846264338327
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#endif
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#endif
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#include "symtab.h"
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#include "symtab.h"
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enum{ COSTABSIZE=1024,TANTABSIZE=512 };
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enum{ COSTABSIZE=1024,TANTABSIZE=512 };
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void init_trigtab();
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void init_trigtab();
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extern double costab[],tantab[];
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extern double costab[],tantab[];
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#define DEG2RAD(x) ((x)*M_PI/180.)
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#define DEG2RAD(x) ((x)*M_PI/180.)
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#define RAD2DEG(x) ((x)*180./M_PI)
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#define RAD2DEG(x) ((x)*180./M_PI)
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/* [trig functions return] an integer between -512 and 512, inclusive (Windows)
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/* [trig functions return] an integer between -512 and 512, inclusive (Windows)
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        or -1024 and 1024, inclusive (Mac OS) */
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        or -1024 and 1024, inclusive (Mac OS) */
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#ifdef WIN_ENV
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#ifdef WIN_ENV
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#define TRIGAMP 512
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#define TRIGAMP 512
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#else
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#else
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#define TRIGAMP 1024
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#define TRIGAMP 1024
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#endif
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#endif
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#define FFANGLE(v) ((v)*M_PI/512.)
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#define FFANGLE(v) ((v)*M_PI/512.)
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#define TO_FFANGLE(v) ((v)*512./M_PI)
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#define TO_FFANGLE(v) ((v)*512./M_PI)
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#define INITRANDSEED() srand(691204)
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#define INITRANDSEED() srand(691204)
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value_type ff_src(value_type x,value_type y,value_type z);
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value_type ff_src(value_type x,value_type y,value_type z);
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value_type ff_rad(value_type d,value_type m,value_type z);
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value_type ff_rad(value_type d,value_type m,value_type z);
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value_type ff_ctl(value_type i);
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value_type ff_ctl(value_type i);
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value_type ff_val(value_type i,value_type a,value_type b);
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value_type ff_val(value_type i,value_type a,value_type b);
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value_type ff_map(value_type i,value_type n);
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value_type ff_map(value_type i,value_type n);
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value_type ff_min(value_type a,value_type b);
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value_type ff_min(value_type a,value_type b);
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value_type ff_max(value_type a,value_type b);
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value_type ff_max(value_type a,value_type b);
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value_type ff_abs(value_type a);
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value_type ff_abs(value_type a);
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value_type ff_add(value_type a,value_type b,value_type c);
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value_type ff_add(value_type a,value_type b,value_type c);
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value_type ff_sub(value_type a,value_type b,value_type c);
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value_type ff_sub(value_type a,value_type b,value_type c);
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value_type ff_dif(value_type a,value_type b);
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value_type ff_dif(value_type a,value_type b);
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value_type ff_rnd(value_type a,value_type b);
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value_type ff_rnd(value_type a,value_type b);
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value_type ff_mix(value_type a,value_type b,value_type n,value_type d);
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value_type ff_mix(value_type a,value_type b,value_type n,value_type d);
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value_type ff_scl(value_type a,value_type il,value_type ih,
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value_type ff_scl(value_type a,value_type il,value_type ih,
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                                  value_type ol,value_type oh);
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                                  value_type ol,value_type oh);
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value_type ff_sqr(value_type x);
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value_type ff_sqr(value_type x);
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value_type ff_sin(value_type x);
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value_type ff_sin(value_type x);
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value_type ff_cos(value_type x);
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value_type ff_cos(value_type x);
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value_type ff_tan(value_type x);
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value_type ff_tan(value_type x);
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value_type ff_r2x(value_type d,value_type m);
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value_type ff_r2x(value_type d,value_type m);
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value_type ff_r2y(value_type d,value_type m);
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value_type ff_r2y(value_type d,value_type m);
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value_type ff_c2d(value_type d, value_type m);
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value_type ff_c2d(value_type d, value_type m);
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value_type ff_c2d_negated(value_type d, value_type m); // not a function!
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value_type ff_c2d_negated(value_type d, value_type m); // not a function!
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value_type ff_c2m(value_type d,value_type m);
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value_type ff_c2m(value_type d,value_type m);
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value_type ff_get(value_type i);
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value_type ff_get(value_type i);
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value_type ff_put(value_type v,value_type i);
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value_type ff_put(value_type v,value_type i);
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value_type ff_cnv(value_type m11,value_type m12,value_type m13,
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value_type ff_cnv(value_type m11,value_type m12,value_type m13,
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                                  value_type m21,value_type m22,value_type m23,
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                                  value_type m21,value_type m22,value_type m23,
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                                  value_type m31,value_type m32,value_type m33,
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                                  value_type m31,value_type m32,value_type m33,
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                                  value_type d );
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                                  value_type d );
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value_type ff_rst(value_type seed);
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value_type ff_rst(value_type seed);