Ole André Vadla Ravnås
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Eight channels, each with its own patch and pattern on its own step clock, mixed on the audio device's thread: storage allocated once, reached through unsafe pointers, and a lock-free ring for control, so nothing under the callback allocates, retains or locks. The image performs a tune, names it, and sounds chords.
25 lines
567 B
C
25 lines
567 B
C
#ifndef LUMA_CLUMAAUDIO_H
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#define LUMA_CLUMAAUDIO_H
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// The device layer, and nothing else: the voices, patterns and mixing all
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// live in Swift, which the callback reaches through luma_synth_mix.
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// Opens the default output device and starts the mixer. Answers false if
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// the host has no usable device, which is not fatal: playing stays
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// callable and simply goes unheard.
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bool luma_audio_start(void);
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void luma_audio_stop(void);
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bool luma_audio_is_running(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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