49 lines
976 B
C
49 lines
976 B
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <math.h>
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#include "input.h"
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#include "vco.h"
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typedef struct {
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float clock_bpm;
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float vco_freq;
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float vco_volume;
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vco_mode_t vco_mode;
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float filter_freq;
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float filter_resonance;
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float env1_attack;
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float env1_decay;
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float env2_attack;
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float env2_decay;
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float reverb_amount;
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bool quant_enabled;
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bool amen_enabled;
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float beat_samples;
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float playback_rate;
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float clock_inc;
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uint32_t amen_inc_fp;
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} state_t;
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static inline float map_linear(float v, float min, float max) {
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return min + v * (max - min);
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}
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static inline float map_exponential(float v, float min, float max) {
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if (min == 0.0f) min = 1e-6f;
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return min * powf(max / min, v);
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}
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static inline float map_squared(float v, float min, float max) {
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return min + (v * v) * (max - min);
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}
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static inline float max_constant(float _0, float val, float _1) {
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return val;
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}
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void update_state(state_t* state, input_t* input);
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