339 lines
8.1 KiB
C
339 lines
8.1 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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#include "Client.H"
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#include "Port.H"
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#include <algorithm>
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#include "debug.h"
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#ifdef __SSE2_MATH__
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#include <xmmintrin.h>
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#endif
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namespace JACK
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{
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// nframes_t Client::_sample_rate = 0;
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Client::Client ( )
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{
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_active = false;
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_freewheeling = false;
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_zombified = false;
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_client = NULL;
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_xruns = 0;
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}
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Client::~Client ( )
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{
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close();
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}
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/** Tell JACK to stop calling process callback. This MUST be called in
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* an inheriting class' destructor */
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void
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Client::deactivate ( )
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{
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if ( _active )
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jack_deactivate( _client );
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_active = false;
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}
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/*******************/
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/* Static Wrappers */
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/*******************/
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int
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Client::process ( nframes_t nframes, void *arg )
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{
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Client *c = (Client*)arg;
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if ( ! c->_frozen.trylock() )
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return 0;
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int r = c->process(nframes);
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c->_frozen.unlock();
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return r;
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}
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int
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Client::sync ( jack_transport_state_t state, jack_position_t *pos, void *arg )
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{
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return ((Client*)arg)->sync( state, pos );
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}
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int
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Client::xrun ( void *arg )
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{
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++((Client*)arg)->_xruns;
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return ((Client*)arg)->xrun();
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}
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void
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Client::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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((Client*)arg)->timebase( state, nframes, pos, new_pos );
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}
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void
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Client::freewheel ( int starting, void *arg )
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{
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((Client*)arg)->_freewheeling = starting;
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((Client*)arg)->freewheel( starting );
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}
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int
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Client::buffer_size ( nframes_t nframes, void *arg )
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{
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return ((Client*)arg)->buffer_size( nframes );
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}
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void
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Client::thread_init ( void *arg )
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{
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#if __SSE2_MATH__
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/* set FTZ and DAZ flags */
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_mm_setcsr(_mm_getcsr() | 0x8040);
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#endif
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((Client*)arg)->thread_init();
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}
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void
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Client::latency ( jack_latency_callback_mode_t mode, void *arg )
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{
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((Client*)arg)->latency( mode );
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}
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void
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Client::shutdown ( void *arg )
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{
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((Client*)arg)->_zombified = true;
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((Client*)arg)->shutdown();
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}
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void
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Client::port_connect ( jack_port_id_t a, jack_port_id_t b, int connect, void *arg )
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{
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Client *c = (Client*)arg;
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if (! c->_frozen.trylock() )
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return;
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((Client*)arg)->port_connect( a, b, connect );
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c->_frozen.unlock();
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}
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int
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Client::sample_rate_changed ( nframes_t srate, void *arg )
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{
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// ((Client*)arg)->_sample_rate = srate;
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return ((Client*)arg)->sample_rate_changed( srate );
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}
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void
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Client::activate ( void )
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{
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jack_activate( _client );
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_active = true;
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}
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/** Connect to JACK using client name /client_name/. Return a static
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* pointer to actual name as reported by JACK */
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const char *
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Client::init ( const char *client_name, unsigned int opts )
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{
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if (( _client = jack_client_open ( client_name, (jack_options_t)0, NULL )) == 0 )
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return NULL;
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#define set_callback( name ) jack_set_ ## name ## _callback( _client, &Client:: name , this )
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set_callback( thread_init );
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set_callback( process );
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set_callback( xrun );
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set_callback( freewheel );
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set_callback( buffer_size );
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set_callback( port_connect );
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jack_set_sample_rate_callback( _client, &Client::sample_rate_changed, this );
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#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
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set_callback( latency );
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#endif
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/* FIXME: should we wait to register this until after the project
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has been loaded (and we have disk threads running)? */
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if ( opts & SLOW_SYNC )
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set_callback( sync );
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if ( opts & TIMEBASE_MASTER )
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jack_set_timebase_callback( _client, 0, &Client::timebase, this );
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jack_on_shutdown( _client, &Client::shutdown, this );
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activate();
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// _sample_rate = frame_rate();
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return jack_get_client_name( _client );
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}
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/* THREAD: RT */
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/** enter or leave freehweeling mode */
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void
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Client::freewheeling ( bool yes )
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{
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if ( jack_set_freewheel( _client, yes ) )
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;
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// WARNING( "Unkown error while setting freewheeling mode" );
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}
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const char *
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Client::jack_name ( void ) const
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{
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return jack_get_client_name( _client );
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}
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void
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Client::port_added ( Port *p )
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{
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std::list < JACK::Port * >::iterator i = std::find( _active_ports.begin(), _active_ports.end(), p );
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if ( i != _active_ports.end() )
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return;
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_active_ports.push_back( p );
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}
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void
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Client::port_removed ( Port *p )
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{
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_active_ports.remove( p );
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}
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void
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Client::freeze_ports ( void )
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{
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for ( std::list < JACK::Port * >::iterator i = _active_ports.begin();
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i != _active_ports.end();
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++i )
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{
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(*i)->freeze();
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}
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}
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void
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Client::thaw_ports ( void )
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{
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/* Sort ports for the sake of clients (e.g. patchage), for
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* whom the order of creation may matter (for display) */
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_active_ports.sort();
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for ( std::list < JACK::Port * >::iterator i = _active_ports.begin();
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i != _active_ports.end();
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++i )
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{
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(*i)->thaw();
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}
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}
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void
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Client::close ( void )
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{
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deactivate();
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if ( _client )
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{
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DMESSAGE( "Closing JACK client" );
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jack_client_close( _client );
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}
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_client = NULL;
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}
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const char *
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Client::name ( const char *s )
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{
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/* Because the JACK API does not provide a mechanism for renaming
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* clients, we have to save connections, destroy our client,
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* create a client with the new name, and restore our
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* connections. Lovely. */
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freeze_ports();
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jack_deactivate( _client );
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jack_client_close( _client );
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_client = NULL;
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_frozen.lock();
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s = init( s );
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thaw_ports();
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_frozen.unlock();
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return s;
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}
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void
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Client::recompute_latencies ( void )
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{
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jack_recompute_total_latencies( _client );
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}
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void
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Client::transport_stop ( )
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{
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jack_transport_stop( _client );
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}
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void
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Client::transport_start ( )
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{
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jack_transport_start( _client );
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}
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void
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Client::transport_locate ( nframes_t frame )
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{
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jack_transport_locate( _client, frame );
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}
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jack_transport_state_t
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Client::transport_query ( jack_position_t *pos )
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{
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return jack_transport_query( _client, pos );
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}
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}
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