#define NUM_LFO 4
#define NUM_POLYPHONY 32

struct engine_t
{
	struct osc_t osc[NUM_LFO];
	struct voice_t voice[NUM_POLYPHONY];
};

void engine_init();
void engine_run(struct engine_t *engine, uint32_t samples, float *left, float *right);
void engine_startvoice(struct engine_t *engine, uint8_t note, uint8_t velocity);
void engine_endvoice(struct engine_t *engine, uint8_t note, uint8_t velocity);