35 lines
499 B
C
35 lines
499 B
C
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#ifndef SYNTH_H
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#define SYNTH_H
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#define SYNTH_BUFSIZE (16)
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#define SYNTH_BUFMASK (0b00001111)
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enum { WAVE_OFF, WAVE_PULSE, WAVE_SAW, WAVE_NOISE };
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typedef struct {
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uint8_t note;
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uint8_t inst_nr;
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uint8_t pos;
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uint16_t phase;
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uint16_t pulse_width;
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uint8_t level; // envelop level
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} synth_channel_t;
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typedef struct {
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uint16_t pulse_width;
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uint8_t pulse_sweep;
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uint8_t wave_table_pos;
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uint8_t decay;
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} synth_instrument_t;
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void synth_init(void);
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void synth_poll(void);
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#endif
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