120 lines
4.4 KiB
C++
120 lines
4.4 KiB
C++
/*
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* Copyright (C) 2006-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2007-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2008-2009 Hans Baier <hansfbaier@googlemail.com>
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* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2015-2019 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 __ardour_smf_source_h__
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#define __ardour_smf_source_h__
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#include <cstdio>
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#include <time.h>
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#include "evoral/SMF.h"
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#include "ardour/midi_source.h"
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#include "ardour/file_source.h"
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namespace Evoral { template<typename T> class Event; }
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namespace ARDOUR {
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template<typename T> class MidiRingBuffer;
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/** Standard Midi File (Type 0) Source */
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class LIBARDOUR_API SMFSource : public MidiSource, public FileSource, public Evoral::SMF {
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public:
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/** Constructor for new internal-to-session files */
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SMFSource (Session& session, const std::string& path, Source::Flag flags);
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/** Constructor for existing external-to-session files */
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SMFSource (Session& session, const std::string& path);
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/** Constructor for existing in-session files */
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SMFSource (Session& session, const XMLNode&, bool must_exist = false);
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virtual ~SMFSource ();
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bool safe_file_extension (const std::string& path) const {
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return safe_midi_file_extension(path);
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}
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void append_event_beats (const WriterLock& lock, const Evoral::Event<Temporal::Beats>& ev);
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void append_event_samples (const WriterLock& lock, const Evoral::Event<samplepos_t>& ev, samplepos_t source_start);
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void update_length (timepos_t const & dur);
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void mark_streaming_midi_write_started (const WriterLock& lock, NoteMode mode);
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void mark_streaming_write_completed (const WriterLock& lock);
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void mark_midi_streaming_write_completed (const WriterLock& lock,
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Evoral::Sequence<Temporal::Beats>::StuckNoteOption,
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Temporal::Beats when = Temporal::Beats());
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XMLNode& get_state () const;
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int set_state (const XMLNode&, int version);
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void load_model (const WriterLock& lock, bool force_reload=false);
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void destroy_model (const WriterLock& lock);
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static bool safe_midi_file_extension (const std::string& path);
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static bool valid_midi_file (const std::string& path);
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void prevent_deletion ();
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void set_path (const std::string& newpath);
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/** Query the smf file for its channel info */
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SMF::UsedChannels used_midi_channels();
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protected:
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void close ();
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void flush_midi (const WriterLock& lock);
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private:
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bool _open;
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Temporal::Beats _last_ev_time_beats;
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samplepos_t _last_ev_time_samples;
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/** end time (start + duration) of last call to read_unlocked */
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mutable timepos_t _smf_last_read_end;
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/** time (in SMF ticks, 1 tick per _ppqn) of the last event read by read_unlocked */
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mutable timepos_t _smf_last_read_time;
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int open_for_write ();
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void ensure_disk_file (const WriterLock& lock);
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timecnt_t read_unlocked (const ReaderLock& lock,
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Evoral::EventSink<samplepos_t>& dst,
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timepos_t const & position,
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timepos_t const & start,
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timecnt_t const & cnt,
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Temporal::Range* loop_range,
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MidiNoteTracker* tracker,
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MidiChannelFilter* filter) const;
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timecnt_t write_unlocked (const WriterLock& lock,
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MidiRingBuffer<samplepos_t>& src,
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timepos_t const & position,
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timecnt_t const & cnt);
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void load_model_unlocked (bool force_reload=false);
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};
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}; /* namespace ARDOUR */
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#endif /* __ardour_smf_source_h__ */
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