107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/*
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* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef WINMME_MIDI_OUTPUT_DEVICE_H
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#define WINMME_MIDI_OUTPUT_DEVICE_H
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#include <windows.h>
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#include <mmsystem.h>
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#include <stdint.h>
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#include <pthread.h>
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#include <string>
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#include <boost/scoped_ptr.hpp>
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#include <pbd/ringbuffer.h>
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#define MaxWinMidiEventSize 256
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namespace ARDOUR {
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class WinMMEMidiOutputDevice {
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public:
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WinMMEMidiOutputDevice (int index);
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~WinMMEMidiOutputDevice ();
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bool enqueue_midi_event (uint64_t rel_event_time_us,
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const uint8_t* data,
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const size_t size);
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bool start ();
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bool stop ();
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void set_enabled (bool enable);
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bool get_enabled ();
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std::string name () const { return m_name; }
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private: // Methods
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bool open (UINT index, std::string& error_msg);
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bool close (std::string& error_msg);
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bool set_device_name (UINT index);
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std::string get_error_string (MMRESULT error_code);
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bool start_midi_output_thread ();
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bool stop_midi_output_thread ();
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bool signal (HANDLE semaphore);
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bool wait (HANDLE semaphore);
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static void* midi_output_thread (void*);
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void midi_output_thread ();
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bool wait_for_microseconds (int64_t us);
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static void CALLBACK winmm_output_callback (HMIDIOUT handle,
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UINT msg,
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DWORD_PTR instance,
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DWORD_PTR midi_data,
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DWORD_PTR timestamp);
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void midi_output_callback (UINT msg, DWORD_PTR data, DWORD_PTR timestamp);
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private: // Data
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HMIDIOUT m_handle;
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HANDLE m_queue_semaphore;
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HANDLE m_sysex_semaphore;
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HANDLE m_timer;
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bool m_started;
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bool m_enabled;
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std::string m_name;
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pthread_t m_output_thread_handle;
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bool m_thread_running;
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bool m_thread_quit;
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boost::scoped_ptr<PBD::RingBuffer<uint8_t> > m_midi_buffer;
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};
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} // namespace ARDOUR
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#endif // WINMME_MIDI_OUTPUT_DEVICE_H
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