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/*
FLAM3 - cosmic recursive fractal flames
Copyright (C) 1992-2009 Spotworks LLC
Copyright (C) 2015 vlam3 contributors
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <math.h>
#include "build/config.h"
#ifdef HAVE_AMDLIBM
#define REPLACE_WITH_AMDLIBM
#include <amdlibm.h>
#endif
#define clamp(a,min,max) (a > max ? max : (a < min ? min : a))
/* Vector wrapping function, could be replaced by true vector functions later
*/
inline double4 clamp_d4 (const double4 in, const double min, const double max) {
return (double4) {
clamp (in[0], min, max),
clamp (in[1], min, max),
clamp (in[2], min, max),
clamp (in[3], min, max),
};
}
inline double4 pow_d4 (const double4 in, double exp) {
return (double4) {
pow (in[0], exp),
pow (in[1], exp),
pow (in[2], exp),
pow (in[3], exp),
};
}
inline double4 nearbyint_d4 (const double4 in) {
return (double4) {
nearbyint (in[0]),
nearbyint (in[1]),
nearbyint (in[2]),
nearbyint (in[3]),
};
}
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