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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* jackclient.cc
*
* Sun Jul 20 21:48:44 CEST 2008
* Copyright 2008 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo 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.
*
* DrumGizmo 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 DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <cassert>
#include "jackclient.h"
JackProcess::~JackProcess() {
}
// --------------------------------------------------------------------
JackChannel::JackChannel()
: samples{}
, client{nullptr}
, port{nullptr} {
}
JackChannel::JackChannel(JackClient& client, std::size_t buffer_size,
std::string const & name)
: samples{}
, client{client.client}
// register jack port for given client
, port{jack_port_register(this->client, name.c_str(),
JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0)} {
samples.resize(buffer_size);
}
JackChannel::~JackChannel() {
if (port != nullptr) {
assert(client != nullptr);
jack_port_unregister(client, port);
}
}
// --------------------------------------------------------------------
int _wrap_jack_process(jack_nframes_t nframes, void* arg){
return static_cast<JackClient*>(arg)->process(nframes);
}
JackClient::JackClient()
: client{nullptr}
, processes{}
, is_active{false} {
jack_status_t status;
client = jack_client_open("DrumGizmo", JackNullOption, &status);
jack_set_process_callback(client, _wrap_jack_process, this);
}
JackClient::~JackClient() {
if (client != nullptr) {
jack_client_close(client);
}
}
void JackClient::add(JackProcess& process) {
processes.insert(&process);
}
void JackClient::remove(JackProcess& process) {
processes.erase(&process);
}
void JackClient::activate() {
if (!is_active) {
jack_activate(client);
}
is_active = true;
}
int JackClient::process(jack_nframes_t num_frames) {
for (auto& ptr: processes) {
ptr->process(num_frames);
}
return 0;
}
std::size_t JackClient::getBufferSize() const {
return jack_get_buffer_size(client);
}
std::size_t JackClient::getSampleRate() const {
return jack_get_sample_rate(client);
}
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