very, very simple WP with midi CC out

2024-10-09 02:01:23 +02:00
commit 3d6fc151f1
126 changed files with 19539 additions and 0 deletions
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+#pragma once
+//*********************************************************************//
+//  API: LINUX ALSA SEQUENCER
+//*********************************************************************//
+
+// API information found at:
+//   - http://www.alsa-project.org/documentation.php#Library
+
+// The ALSA Sequencer API is based on the use of a callback function for
+// MIDI input.
+//
+// Thanks to Pedro Lopez-Cabanillas for help with the ALSA sequencer
+// time stamps and other assorted fixes!!!
+
+#include <libremidi/backends/alsa_seq/midi_in.hpp>
+#include <libremidi/backends/alsa_seq/midi_out.hpp>
+#include <libremidi/backends/alsa_seq/observer.hpp>
+
+namespace libremidi::alsa_seq
+{
+
+struct backend
+{
+  using midi_in
+      = alsa_seq::midi_in_impl<libremidi::input_configuration, alsa_seq::input_configuration>;
+  using midi_out = alsa_seq::midi_out_impl;
+  using midi_observer = alsa_seq::observer_impl<alsa_seq::observer_configuration>;
+  using midi_in_configuration = alsa_seq::input_configuration;
+  using midi_out_configuration = alsa_seq::output_configuration;
+  using midi_observer_configuration = alsa_seq::observer_configuration;
+  static const constexpr auto API = libremidi::API::ALSA_SEQ;
+  static const constexpr auto name = "alsa_seq";
+  static const constexpr auto display_name = "ALSA (sequencer)";
+
+  static inline bool available() noexcept
+  {
+    static const libasound& snd = libasound::instance();
+    return snd.available && snd.seq.available;
+  }
+};
+
+}