85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2008 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* 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; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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#pragma once
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#include <sigc++/sigc++.h>
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using namespace sigc;
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#include <MIDI/types.h> // just for tick_t
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#include <jack/transport.h>
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typedef double playhead_t;
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class Transport : public trackable {
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double _master_beats_per_minute;
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unsigned _master_beats_per_bar;
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unsigned _master_beat_type;
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public:
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signal <int, double> signal_tempo_change;
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signal <int, double> signal_bpb_change;
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signal <int, double> signal_beat_change;
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bool master; /* are we driving the transport? */
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bool rolling;
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bool valid;
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volatile bool recording;
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unsigned long bar;
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unsigned beat;
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unsigned tick;
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playhead_t ticks;
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unsigned beats_per_bar;
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unsigned beat_type;
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double ticks_per_beat;
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double beats_per_minute;
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double ticks_per_period;
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double frames_per_tick;
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double frame_rate;
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double frame;
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double nframes;
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Transport ( void );
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void poll ( void );
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void start ( void );
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void stop ( void );
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void toggle ( void );
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void locate ( tick_t ticks );
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void set_beats_per_minute ( double n );
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void set_beats_per_bar ( int n );
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void set_beat_type ( int n );
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static void timebase ( jack_transport_state_t state, jack_nframes_t nframes, jack_position_t *pos, int new_pos, void *arg );
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};
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extern Transport transport;
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