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livetrax/libs/ardour/beatbox.cc

94 lines
2.1 KiB
C++

/*
Copyright (C) 2017 Paul Davis
This program 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.
This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <iostream>
#include <cstdio>
#include <cmath>
#include <cstring>
#include <unistd.h>
#include <stdint.h>
#include "pbd/i18n.h"
#include "evoral/midi_events.h"
#include "ardour/audioengine.h"
#include "ardour/beatbox.h"
#include "ardour/midi_buffer.h"
#include "ardour/session.h"
#include "ardour/smf_source.h"
#include "ardour/step_sequencer.h"
#include "ardour/tempo.h"
using std::cerr;
using std::endl;
using namespace ARDOUR;
BeatBox::BeatBox (Session& s)
: Processor (s, _("BeatBox"))
, _sequencer (0)
{
_display_to_user = true;
_sequencer = new StepSequencer (s.tempo_map(), 12, 32, Temporal::Beats (0, Temporal::Beats::PPQN/8), Temporal::Beats (4, 0), 40);
}
BeatBox::~BeatBox ()
{
delete _sequencer;
}
void
BeatBox::silence (samplecnt_t, samplepos_t)
{
/* do nothing, we have no inputs or outputs */
}
void
BeatBox::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double speed, pframes_t nsamples, bool result_required)
{
if (bufs.count().n_midi() == 0) {
return;
}
_sequencer->run (bufs.get_midi (0), start_sample, end_sample, speed, nsamples, result_required);
}
bool
BeatBox::can_support_io_configuration (const ChanCount& in, ChanCount& out)
{
return true;
}
XMLNode&
BeatBox::get_state () const
{
return state ();
}
XMLNode&
BeatBox::state() const
{
XMLNode& node = Processor::state();
node.set_property ("type", "beatbox");
return node;
}