105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
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/*
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* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef WINMME_MIDI_INPUT_DEVICE_H
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#define WINMME_MIDI_INPUT_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 <string>
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#include <boost/scoped_array.hpp>
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#include <boost/scoped_ptr.hpp>
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#include <pbd/ringbuffer.h>
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namespace ARDOUR {
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class WinMMEMidiInputDevice {
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public: // ctors
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WinMMEMidiInputDevice (int index);
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~WinMMEMidiInputDevice ();
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public: // methods
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/**
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* Dequeue events that have accumulated in winmm_input_callback.
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*
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* This is called by the audio processing thread/callback to transfer events
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* into midi ports before processing.
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*/
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bool dequeue_midi_event (uint64_t timestamp_start,
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uint64_t timestamp_end,
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uint64_t& timestamp,
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uint8_t* data,
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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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/**
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* @return Name of midi device
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*/
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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 add_sysex_buffer (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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static void CALLBACK winmm_input_callback (HMIDIIN handle,
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UINT msg,
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DWORD_PTR instance,
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DWORD_PTR midi_msg,
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DWORD timestamp);
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void handle_short_msg (const uint8_t* midi_data, uint32_t timestamp);
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void handle_sysex_msg (MIDIHDR* const midi_header, uint32_t timestamp);
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bool enqueue_midi_msg (const uint8_t* midi_data, size_t size, uint32_t timestamp);
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private: // data
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HMIDIIN m_handle;
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MIDIHDR m_sysex_header;
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bool m_started;
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std::string m_name;
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// can't use unique_ptr yet
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boost::scoped_ptr<RingBuffer<uint8_t> > m_midi_buffer;
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boost::scoped_array<uint8_t> m_sysex_buffer;
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};
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}
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#endif // WINMME_MIDI_INPUT_DEVICE_H
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