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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 Lesser General Public License as published by
* the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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()
{
}
// --------------------------------------------------------------------
JackPort::JackPort(JackClient& client, const std::string& name,
const char* type, JackPortFlags flags)
: client{client.client} // register jack port for given client
, port{jack_port_register(this->client, name.c_str(), type, flags, 0)}
{
}
JackPort::~JackPort()
{
if(port != nullptr)
{
assert(client != nullptr);
jack_port_unregister(client, port);
}
}
// --------------------------------------------------------------------
int JackClient::wrapJackProcess(jack_nframes_t nframes, void* arg)
{
return static_cast<JackClient*>(arg)->process(nframes);
}
void JackClient::latencyCallback(jack_latency_callback_mode_t mode,
void* arg)
{
static_cast<JackClient*>(arg)->jackLatencyCallback(mode);
}
void JackClient::freewheelCallback(int is_freewheeling, void* arg)
{
static_cast<JackClient*>(arg)->jackFreewheelCallback(is_freewheeling);
}
JackClient::JackClient()
: client{nullptr}
, processes{}
, is_active{false}
{
jack_status_t status;
client = jack_client_open("DrumGizmo", JackNullOption, &status);
// Register callbacks
jack_set_process_callback(client, JackClient::wrapJackProcess, this);
jack_set_latency_callback(client, JackClient::latencyCallback, this);
jack_set_freewheel_callback(client, JackClient::freewheelCallback, 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;
}
void JackClient::jackLatencyCallback(jack_latency_callback_mode_t mode)
{
for(auto& ptr : processes)
{
ptr->jackLatencyCallback(mode);
}
}
void JackClient::jackFreewheelCallback(bool is_freewheeling)
{
this->is_freewheeling = is_freewheeling;
}
std::size_t JackClient::getBufferSize() const
{
return jack_get_buffer_size(client);
}
std::size_t JackClient::getSampleRate() const
{
return jack_get_sample_rate(client);
}
bool JackClient::isFreewheeling() const
{
return is_freewheeling;
}
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