76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
#include <stdlib.h>
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#include <math.h>
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#include <stdint.h>
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#ifdef __SSE2__
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#include <emmintrin.h>
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#endif
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#define INNER static inline
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#define PURE __attribute__((pure))
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#define CONST __attribute__((const))
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#define RESTRICT __restrict__
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typedef double v2df __attribute__((vector_size(16), aligned(16)));
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typedef float v2sf __attribute__((vector_size(8), aligned(8)));
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typedef float v4sf __attribute__((vector_size(16), aligned(16)));
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#ifdef FORCE_SINGLE
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#define v2dt float
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#define v2df v2sf
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#else
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#define v2dt double
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#endif
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typedef float v4sf __attribute__((vector_size(16), aligned(16)));
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typedef unsigned long ulong; // __attribute((aligned(16)));
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#define V(x) (v2df){(v2dt) (x), (v2dt) (x)}
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#define V2(x, y) (v2df){(v2dt) (x), (v2dt) (y)}
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INNER void
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disable_denormals()
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{
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#if __SSE2__
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_mm_setcsr(_mm_getcsr() | 0x8040);
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#endif
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}
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/* via http://www.rgba.org/articles/sfrand/sfrand.htm */
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static unsigned int mirand = 1;
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#define LIMIT(v,l,u) ((v)<(l)?(l):((v)>(u)?(u):(v)))
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#define DB2LIN(x) ((x) > -90 ? pow(10, (x) * 0.05) : 0)
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/* frequency to rads/sec (angular frequency) */
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#define ANGULAR(fc, fs) (2 * M_PI / (fs) * (fc))
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#define ANGULAR_LIM(fc, fs) (2 * M_PI / (fs) * LIMIT((fc), 1, (fs)/2))
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INNER float
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whitenoise()
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{
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union either {
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float f;
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unsigned int i;
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} white;
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mirand *= 16807;
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white.i = (mirand & 0x007FFFFF) | 0x40000000;
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return white.f - 3;
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}
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typedef enum {
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FILT_PEAKING,
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FILT_LOWSHELF,
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FILT_HIGHSHELF,
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FILT_LOWPASS,
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FILT_HIGHPASS,
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FILT_ALLPASS,
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FILT_BANDPASS,
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FILT_BANDPASS_2,
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FILT_NOTCH,
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FILT_GAIN
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} filter_t;
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#include "biquad.hpp"
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#include "svf.hpp"
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