From 21de7016110081437ca0fbfdd6a14f41088da7b9 Mon Sep 17 00:00:00 2001 From: David Robillard Date: Wed, 3 Jun 2009 01:37:29 +0000 Subject: Move internals to their own directory ala events. git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2070 a436a847-0d15-0410-975c-d299462d15a1 --- src/engine/internals/Transport.cpp | 156 +++++++++++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) create mode 100644 src/engine/internals/Transport.cpp (limited to 'src/engine/internals/Transport.cpp') diff --git a/src/engine/internals/Transport.cpp b/src/engine/internals/Transport.cpp new file mode 100644 index 00000000..3355f4d8 --- /dev/null +++ b/src/engine/internals/Transport.cpp @@ -0,0 +1,156 @@ +/* This file is part of Ingen. + * Copyright (C) 2007-2009 Dave Robillard + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "internals/Transport.hpp" +#include +#include "OutputPort.hpp" +#include "InternalPlugin.hpp" +#include "JackAudioDriver.hpp" +#include "PortImpl.hpp" +#include "util.hpp" +//#include "Engine.hpp" + +using namespace std; + +namespace Ingen { + +static InternalPlugin transport_plugin(NS_INTERNALS "Transport", "transport"); + +TransportNode::TransportNode(const string& path, bool polyphonic, PatchImpl* parent, SampleRate srate, size_t buffer_size) + : NodeBase(&transport_plugin, path, false, parent, srate, buffer_size) +{ +#if 0 + _num_ports = 10; + _ports.alloc(_num_ports); + + OutputPort* spb_port = new OutputPort(this, "Seconds per Beat", 0, 1, + // new PortInfo("Seconds per Beat", CONTROL, OUTPUT, 0, 0, 1), 1); + _ports.at(0) = spb_port; + + OutputPort* bpb_port = new OutputPort(this, "Beats per Bar", 1, 1, + // new PortInfo("Beats per Bar", CONTROL, OUTPUT, 0, 0, 1), 1); + _ports.at(1) = bpb_port; + + OutputPort* bar_port = new OutputPort(this, "Bar", 3, 1, +// new PortInfo("Bar", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(2) = bar_port; + + OutputPort* beat_port = new OutputPort(this, "Beat", 3, 1, + // new PortInfo("Beat", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(3) = beat_port; + + OutputPort* frame_port = new OutputPort(this, "Frame", 3, 1, + // new PortInfo("Frame", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(4) = frame_port; + + OutputPort* hour_port = new OutputPort(this, "Hour", 3, 1, + // new PortInfo("Hour", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(5) = hour_port; + + OutputPort* minute_port = new OutputPort(this, "Minute", 3, 1, + // new PortInfo("Minute", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(6) = minute_port; + + OutputPort* second_port = new OutputPort(this, "Second", 3, 1, + // new PortInfo("Second", CONTROL, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(7) = second_port; + + OutputPort* trg_port = new OutputPort(this, "Beat Tick", 2, 1, + // new PortInfo("Beat Tick", AUDIO, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(8) = trg_port; + + OutputPort* bar_trig_port = new OutputPort(this, "Bar Tick", 3, 1, + // new PortInfo("Bar Tick", AUDIO, OUTPUT, 0, 0, 1), buffer_size); + _ports.at(9) = bar_trig_port; +#endif +} + + +void +TransportNode::process(ProcessContext& context) +{ + NodeBase::pre_process(context); +#if 0 + + // FIXME: this will die horribly with any driver other than jack (in theory) + const jack_position_t* const position = ((JackAudioDriver*)Engine::instance().audio_driver())->position(); + jack_transport_state_t state = ((JackAudioDriver*)Engine::instance().audio_driver())->transport_state(); + double bpm = position->beats_per_minute; + float bpb = position->beats_per_bar; + float spb = 60.0 / bpm; + + //cerr << "bpm = " << bpm << endl; + //cerr << "spb = " << spb << endl; + + if (position->valid & JackPositionBBT) { + cerr << "bar: " << position->bar << endl; + cerr << "beat: " << position->beat << endl; + cerr << "tick: " << position->tick << endl; + } else { + cerr << "No BBT" << endl; + } + + if (position->valid & JackBBTFrameOffset) { + cerr << "bbt_offset: " << position->bbt_offset << endl; + } else { + cerr << "No BBT offset" << endl; + } + + if (position->valid & JackPositionTimecode) { + double time = position->frame_time; + cerr << "Seconds: " << time << " : " << endl; + /*time /= 60.0; + cerr << "Minutes: " << time << " : "; + time /= 60.0; + cerr << "Hours: " << time << " : ";*/ + } else { + cerr << "No timecode." << endl; + } + + + ((OutputPort*)_ports.at(0))->buffer(0)->set(spb, 0, 0); + ((OutputPort*)_ports.at(1))->buffer(0)->set(bpb, 0, 0); + + // fill the trigger buffers with zeros + ((OutputPort*)_ports.at(2))->buffer(0)->set(0.0f, 0, nframes - 1); + ((OutputPort*)_ports.at(3))->buffer(0)->set(0.0f, 0, nframes - 1); + + // if the transport is rolling, add triggers at the right frame positions + if ((position->valid & JackTransportBBT) && (state == JackTransportRolling)) { + double frames_per_beat = position->frame_rate * spb; + double first_beat = (1.0f - position->tick / position->ticks_per_beat) * frames_per_beat; + int first_beat_no = position->beat; + if (first_beat >= frames_per_beat) { + first_beat -= frames_per_beat; + --first_beat_no; + } + for ( ; first_beat < nframes; first_beat += frames_per_beat) { + ((OutputPort*)_ports.at(2))->buffer(0)->set(1.0f, size_t(first_beat)); + if (first_beat_no % int(bpb) == 0) { + ((OutputPort*)_ports.at(3))->buffer(0)->set(1.0f, size_t(first_beat)); + ++first_beat_no; + } + } + } + #endif + + NodeBase::post_process(context); +} + + +} // namespace Ingen + -- cgit v1.2.1