2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 $Id: diskstream.h 579 2006-06-12 19:56:37Z essej $
21 #ifndef __ardour_midi_diskstream_h__
22 #define __ardour_midi_diskstream_h__
24 #include <sigc++/signal.h>
35 #include <pbd/fastlog.h>
36 #include <pbd/ringbufferNPT.h>
39 #include <ardour/ardour.h>
40 #include <ardour/configuration.h>
41 #include <ardour/session.h>
42 #include <ardour/route_group.h>
43 #include <ardour/route.h>
44 #include <ardour/port.h>
45 #include <ardour/utils.h>
46 #include <ardour/diskstream.h>
47 #include <ardour/midi_playlist.h>
59 class MidiDiskstream : public Diskstream
62 MidiDiskstream (Session &, const string& name, Diskstream::Flag f = Recordable);
63 MidiDiskstream (Session &, const XMLNode&);
65 float playback_buffer_load() const;
66 float capture_buffer_load() const;
68 RawMidi* playback_buffer () { return _current_playback_buffer; }
69 RawMidi* capture_buffer () { return _current_capture_buffer; }
71 void set_record_enabled (bool yn);
73 MidiPlaylist* midi_playlist () { return dynamic_cast<MidiPlaylist*>(_playlist); }
75 int use_playlist (Playlist *);
76 int use_new_playlist ();
77 int use_copy_playlist ();
81 XMLNode& get_state(void);
82 int set_state(const XMLNode& node);
84 void monitor_input (bool);
86 MidiSource* write_source() { return (MidiSource*)_write_source; }
88 void set_destructive (bool yn); // doom!
93 /* the Session is the only point of access for these
94 because they require that the Session is "inactive"
95 while they are called.
98 void set_pending_overwrite(bool);
99 int overwrite_existing_buffers ();
100 void set_block_size (jack_nframes_t);
101 int internal_playback_seek (jack_nframes_t distance);
102 int can_internal_playback_seek (jack_nframes_t distance);
103 int rename_write_sources ();
104 void reset_write_sources (bool, bool force = false);
105 void non_realtime_input_change ();
108 int seek (jack_nframes_t which_sample, bool complete_refill = false);
111 friend class MidiTrack;
113 int process (jack_nframes_t transport_frame, jack_nframes_t nframes, jack_nframes_t offset, bool can_record, bool rec_monitors_input);
114 bool commit (jack_nframes_t nframes);
118 /* use unref() to destroy a diskstream */
121 /* The two central butler operations */
122 int do_flush (Session::RunContext context, bool force = false);
125 int do_refill_with_alloc();
127 int read (RawMidi* buf, jack_nframes_t& start, jack_nframes_t cnt, bool reversed);
129 void finish_capture (bool rec_monitors_input);
130 void transport_stopped (struct tm&, time_t, bool abort);
132 void init (Diskstream::Flag);
134 int use_new_write_source (uint32_t n=0);
136 int find_and_use_playlist (const string&);
138 void allocate_temporary_buffers ();
140 int use_pending_capture_data (XMLNode& node);
142 void get_input_sources ();
143 void check_record_status (jack_nframes_t transport_frame, jack_nframes_t nframes, bool can_record);
144 void set_align_style_from_io();
146 void engage_record_enable ();
147 void disengage_record_enable ();
149 // FIXME: This is basically a single ChannelInfo.. abstractify that concept?
150 RingBufferNPT<RawMidi>* _playback_buf;
151 RingBufferNPT<RawMidi>* _capture_buf;
152 RawMidi* _current_playback_buffer;
153 RawMidi* _current_capture_buffer;
154 RawMidi* _playback_wrap_buffer;
155 RawMidi* _capture_wrap_buffer;
156 MidiPort* _source_port;
157 SMFSource* _write_source; ///< aka capturing source
158 RingBufferNPT<CaptureTransition>* _capture_transition_buf;
159 RingBufferNPT<RawMidi>::rw_vector _playback_vector;
160 RingBufferNPT<RawMidi>::rw_vector _capture_vector;
163 }; /* namespace ARDOUR */
165 #endif /* __ardour_midi_diskstream_h__ */