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26 lines
463 B
26 lines
463 B
#ifndef __UTIL_H__
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#define __UTIL_H__
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#include <cmath>
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inline float clamp(float x, float a, float b) {
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return fminf(b, fmaxf(a, x));
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}
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inline float dBToGain(float dB) {
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return pow(10, dB / 20.0);
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}
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inline float noteToFreq(float note) {
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return 440 * pow(2, (note - 69) / 12.0);
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}
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inline float triangle(float phase) {
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if(phase < M_PI) {
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return phase / M_PI_2 - 1;
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} else {
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return 1 - (phase - M_PI) / M_PI_2;
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}
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}
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#endif |