43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
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#pragma once
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//*********************************************************************//
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// API: LINUX ALSA SEQUENCER
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//*********************************************************************//
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// API information found at:
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// - http://www.alsa-project.org/documentation.php#Library
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// The ALSA Sequencer API is based on the use of a callback function for
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// MIDI input.
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//
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// Thanks to Pedro Lopez-Cabanillas for help with the ALSA sequencer
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// time stamps and other assorted fixes!!!
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#include <libremidi/backends/alsa_seq/midi_in.hpp>
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#include <libremidi/backends/alsa_seq/midi_out.hpp>
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#include <libremidi/backends/alsa_seq/observer.hpp>
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namespace libremidi::alsa_seq
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{
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struct backend
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{
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using midi_in
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= alsa_seq::midi_in_impl<libremidi::input_configuration, alsa_seq::input_configuration>;
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using midi_out = alsa_seq::midi_out_impl;
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using midi_observer = alsa_seq::observer_impl<alsa_seq::observer_configuration>;
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using midi_in_configuration = alsa_seq::input_configuration;
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using midi_out_configuration = alsa_seq::output_configuration;
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using midi_observer_configuration = alsa_seq::observer_configuration;
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static const constexpr auto API = libremidi::API::ALSA_SEQ;
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static const constexpr auto name = "alsa_seq";
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static const constexpr auto display_name = "ALSA (sequencer)";
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static inline bool available() noexcept
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{
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static const libasound& snd = libasound::instance();
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return snd.available && snd.seq.available;
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}
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};
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}
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