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authorVolker Fischer <corrados@users.noreply.github.com>2021-02-09 20:32:10 +0100
committerBent Bisballe Nyeng <deva@aasimon.org>2021-02-09 20:32:10 +0100
commit3dd3c332414bfbebd69bfd71a4a3198198525eb6 (patch)
tree9dff61eab647703581c80b1e1b276571586696d7 /drumgizmo/input/alsamidi.h
parent9310ffe5959ce4de02204b6cd251d4b4a58c69b9 (diff)
Add ALSA midi input support.
Diffstat (limited to 'drumgizmo/input/alsamidi.h')
-rw-r--r--drumgizmo/input/alsamidi.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/drumgizmo/input/alsamidi.h b/drumgizmo/input/alsamidi.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * alsamidi.h
+ *
+ * Copyright 2021 Volker Fischer (github.com/corrados)
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#pragma once
+#include <memory>
+#include <alsa/asoundlib.h>
+
+#include "audioinputenginemidi.h"
+#include "midimapper.h"
+#include "midimapparser.h"
+
+class AlsaMidiInputEngine
+ : public AudioInputEngineMidi
+{
+public:
+ AlsaMidiInputEngine();
+ ~AlsaMidiInputEngine();
+
+ // based on AudioInputEngineMidi
+ bool init(const Instruments& instruments) override;
+ void setParm(const std::string& parm, const std::string& value) override;
+ bool start() override;
+ void stop() override;
+ void pre() override;
+ void run(size_t pos, size_t len, std::vector<event_t>& events) override;
+ void post() override;
+ bool isFreewheeling() const override;
+
+private:
+ int in_port;
+ snd_seq_t* seq_handle;
+
+ std::string midimap_file;
+ std::size_t pos;
+ std::vector<event_t> events;
+};