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#ifndef EFFECT_PHASER_H
#define EFFECT_PHASER_H
#include "engine/audio_effect.h"
class AudioEffectPhaser : public AudioEffect {
class AllpassDelay {
float a, h;
public:
_FORCE_INLINE_ void delay(float d) {
a = (1.f - d) / (1.f + d);
}
_FORCE_INLINE_ float update(float s) {
float y = s * -a + h;
h = y * a + s;
return y;
}
AllpassDelay() {
a = 0;
h = 0;
}
};
AllpassDelay allpass[2][6];
float phase;
AudioFrame h;
int block_size;
int sampling_rate;
enum ControlPorts {
CONTROL_PORT_RANGE_MIN_HZ,
CONTROL_PORT_RANGE_MAX_HZ,
CONTROL_PORT_RATE_HZ,
CONTROL_PORT_FEEDBACK,
CONTROL_PORT_DEPTH,
CONTROL_PORT_MAX
};
ControlPortDefault control_ports[CONTROL_PORT_MAX];
void _update_buffers();
public:
//process
virtual bool has_secondary_input() const;
virtual void process(const Event *p_events, int p_event_count, const AudioFrame *p_in, AudioFrame *p_out, bool p_prev_active);
virtual void process_with_secondary(const Event *p_events, int p_event_count, const AudioFrame *p_in, const AudioFrame *p_secondary, AudioFrame *p_out, bool p_prev_active);
virtual void set_process_block_size(int p_size);
virtual void set_sampling_rate(int p_hz);
//info
virtual String get_name() const;
virtual String get_unique_id() const;
virtual String get_provider_id() const;
virtual int get_control_port_count() const;
virtual ControlPort *get_control_port(int p_port);
virtual void reset();
/* Load/Save */
virtual JSON::Node to_json() const;
virtual Error from_json(const JSON::Node &node);
AudioEffectPhaser();
~AudioEffectPhaser();
};
#endif // EFFECT_PHASER_H
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