367 lines
8.2 KiB
C++
367 lines
8.2 KiB
C++
/*
|
|
Copyright (C) 2009 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 "pbd/error.h"
|
|
#include "pbd/failed_constructor.h"
|
|
|
|
#include "ardour/amp.h"
|
|
#include "ardour/audio_buffer.h"
|
|
#include "ardour/internal_return.h"
|
|
#include "ardour/internal_send.h"
|
|
#include "ardour/meter.h"
|
|
#include "ardour/panner_shell.h"
|
|
#include "ardour/route.h"
|
|
#include "ardour/session.h"
|
|
#include "ardour/audioengine.h"
|
|
|
|
#include "i18n.h"
|
|
|
|
namespace ARDOUR { class MuteMaster; class Pannable; }
|
|
|
|
using namespace PBD;
|
|
using namespace ARDOUR;
|
|
using namespace std;
|
|
|
|
PBD::Signal1<void, pframes_t> InternalSend::CycleStart;
|
|
|
|
InternalSend::InternalSend (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMaster> mm, boost::shared_ptr<Route> sendto, Delivery::Role role)
|
|
: Send (s, p, mm, role)
|
|
{
|
|
if (sendto) {
|
|
if (use_target (sendto)) {
|
|
throw failed_constructor();
|
|
}
|
|
}
|
|
|
|
init_gain ();
|
|
|
|
CycleStart.connect_same_thread (*this, boost::bind (&InternalSend::cycle_start, this, _1));
|
|
}
|
|
|
|
InternalSend::~InternalSend ()
|
|
{
|
|
if (_send_to) {
|
|
_send_to->remove_send_from_internal_return (this);
|
|
}
|
|
}
|
|
|
|
void
|
|
InternalSend::init_gain ()
|
|
{
|
|
if (_role == Listen) {
|
|
/* send to monitor bus is always at unity */
|
|
_amp->set_gain (1.0, this);
|
|
} else {
|
|
/* aux sends start at -inf dB */
|
|
_amp->set_gain (0, this);
|
|
}
|
|
}
|
|
|
|
int
|
|
InternalSend::use_target (boost::shared_ptr<Route> sendto)
|
|
{
|
|
if (_send_to) {
|
|
_send_to->remove_send_from_internal_return (this);
|
|
}
|
|
|
|
_send_to = sendto;
|
|
|
|
_send_to->add_send_to_internal_return (this);
|
|
|
|
mixbufs.ensure_buffers (_send_to->internal_return()->input_streams(), _session.get_block_size());
|
|
mixbufs.set_count (_send_to->internal_return()->input_streams());
|
|
|
|
reset_panner ();
|
|
|
|
set_name (sendto->name());
|
|
_send_to_id = _send_to->id();
|
|
|
|
target_connections.drop_connections ();
|
|
|
|
_send_to->DropReferences.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_going_away, this));
|
|
_send_to->PropertyChanged.connect_same_thread (target_connections, boost::bind (&InternalSend::send_to_property_changed, this, _1));;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
InternalSend::send_to_going_away ()
|
|
{
|
|
target_connections.drop_connections ();
|
|
_send_to.reset ();
|
|
_send_to_id = "0";
|
|
}
|
|
|
|
void
|
|
InternalSend::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
|
|
{
|
|
if ((!_active && !_pending_active) || !_send_to) {
|
|
_meter->reset ();
|
|
return;
|
|
}
|
|
|
|
// we have to copy the input, because we may alter the buffers with the amp
|
|
// in-place, which a send must never do.
|
|
|
|
if (_panshell && !_panshell->bypassed()) {
|
|
_panshell->run (bufs, mixbufs, start_frame, end_frame, nframes);
|
|
} else {
|
|
if (role() == Listen) {
|
|
/* We're going to the monitor bus, so discard MIDI data */
|
|
|
|
uint32_t const bufs_audio = bufs.count().get (DataType::AUDIO);
|
|
uint32_t const mixbufs_audio = mixbufs.count().get (DataType::AUDIO);
|
|
|
|
assert (mixbufs.available().get (DataType::AUDIO) >= bufs_audio);
|
|
|
|
/* Copy bufs into mixbufs, going round bufs more than once if necessary
|
|
to ensure that every mixbuf gets some data.
|
|
*/
|
|
|
|
uint32_t j = 0;
|
|
for (uint32_t i = 0; i < mixbufs_audio; ++i) {
|
|
mixbufs.get_audio(i).read_from (bufs.get_audio(j), nframes);
|
|
++j;
|
|
|
|
if (j == bufs_audio) {
|
|
j = 0;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
assert (mixbufs.available() >= bufs.count());
|
|
mixbufs.read_from (bufs, nframes);
|
|
}
|
|
}
|
|
|
|
/* gain control */
|
|
|
|
gain_t tgain = target_gain ();
|
|
|
|
if (tgain != _current_gain) {
|
|
|
|
/* target gain has changed */
|
|
|
|
Amp::apply_gain (mixbufs, nframes, _current_gain, tgain);
|
|
_current_gain = tgain;
|
|
|
|
} else if (tgain == 0.0) {
|
|
|
|
/* we were quiet last time, and we're still supposed to be quiet.
|
|
*/
|
|
|
|
_meter->reset ();
|
|
Amp::apply_simple_gain (mixbufs, nframes, 0.0);
|
|
goto out;
|
|
|
|
} else if (tgain != 1.0) {
|
|
|
|
/* target gain has not changed, but is not zero or unity */
|
|
Amp::apply_simple_gain (mixbufs, nframes, tgain);
|
|
}
|
|
|
|
_amp->set_gain_automation_buffer (_session.send_gain_automation_buffer ());
|
|
_amp->setup_gain_automation (start_frame, end_frame, nframes);
|
|
_amp->run (mixbufs, start_frame, end_frame, nframes, true);
|
|
|
|
/* consider metering */
|
|
|
|
if (_metering) {
|
|
if (_amp->gain_control()->get_value() == 0) {
|
|
_meter->reset();
|
|
} else {
|
|
_meter->run (mixbufs, start_frame, end_frame, nframes, true);
|
|
}
|
|
}
|
|
|
|
/* target will pick up our output when it is ready */
|
|
|
|
out:
|
|
_active = _pending_active;
|
|
}
|
|
|
|
int
|
|
InternalSend::set_block_size (pframes_t nframes)
|
|
{
|
|
if (_send_to) {
|
|
mixbufs.ensure_buffers (_send_to->internal_return()->input_streams(), nframes);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool
|
|
InternalSend::feeds (boost::shared_ptr<Route> other) const
|
|
{
|
|
return _send_to == other;
|
|
}
|
|
|
|
XMLNode&
|
|
InternalSend::state (bool full)
|
|
{
|
|
XMLNode& node (Send::state (full));
|
|
|
|
/* this replaces any existing "type" property */
|
|
|
|
node.add_property ("type", "intsend");
|
|
|
|
if (_send_to) {
|
|
node.add_property ("target", _send_to->id().to_s());
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
XMLNode&
|
|
InternalSend::get_state()
|
|
{
|
|
return state (true);
|
|
}
|
|
|
|
int
|
|
InternalSend::set_state (const XMLNode& node, int version)
|
|
{
|
|
const XMLProperty* prop;
|
|
|
|
init_gain ();
|
|
|
|
Send::set_state (node, version);
|
|
|
|
if ((prop = node.property ("target")) != 0) {
|
|
|
|
_send_to_id = prop->value();
|
|
|
|
/* if we're loading a session, the target route may not have been
|
|
create yet. make sure we defer till we are sure that it should
|
|
exist.
|
|
*/
|
|
|
|
if (!IO::connecting_legal) {
|
|
IO::ConnectingLegal.connect_same_thread (connect_c, boost::bind (&InternalSend::connect_when_legal, this));
|
|
} else {
|
|
connect_when_legal ();
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
InternalSend::connect_when_legal ()
|
|
{
|
|
connect_c.disconnect ();
|
|
|
|
if (_send_to_id == "0") {
|
|
/* it vanished before we could connect */
|
|
return 0;
|
|
}
|
|
|
|
boost::shared_ptr<Route> sendto;
|
|
|
|
if ((sendto = _session.route_by_id (_send_to_id)) == 0) {
|
|
error << string_compose (_("%1 - cannot find any track/bus with the ID %2 to connect to"), display_name(), _send_to_id) << endmsg;
|
|
cerr << string_compose (_("%1 - cannot find any track/bus with the ID %2 to connect to"), display_name(), _send_to_id) << endl;
|
|
return -1;
|
|
}
|
|
|
|
return use_target (sendto);
|
|
}
|
|
|
|
bool
|
|
InternalSend::can_support_io_configuration (const ChanCount& in, ChanCount& out)
|
|
{
|
|
out = in;
|
|
return true;
|
|
}
|
|
|
|
uint32_t
|
|
InternalSend::pan_outs () const
|
|
{
|
|
/* the number of targets for our panner is determined by what we are
|
|
sending to, if anything.
|
|
*/
|
|
|
|
if (_send_to) {
|
|
return _send_to->internal_return()->input_streams().n_audio();
|
|
}
|
|
|
|
return 1; /* zero is more accurate, but 1 is probably safer as a way to
|
|
* say "don't pan"
|
|
*/
|
|
}
|
|
|
|
bool
|
|
InternalSend::configure_io (ChanCount in, ChanCount out)
|
|
{
|
|
bool ret = Send::configure_io (in, out);
|
|
set_block_size (_session.engine().samples_per_cycle());
|
|
return ret;
|
|
}
|
|
|
|
bool
|
|
InternalSend::set_name (const string& str)
|
|
{
|
|
/* rules for external sends don't apply to us */
|
|
return IOProcessor::set_name (str);
|
|
}
|
|
|
|
string
|
|
InternalSend::display_name () const
|
|
{
|
|
if (_role == Aux) {
|
|
return string_compose (X_("%1"), _name);
|
|
} else {
|
|
return _name;
|
|
}
|
|
}
|
|
|
|
bool
|
|
InternalSend::visible () const
|
|
{
|
|
if (_role == Aux) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
InternalSend::send_to_property_changed (const PropertyChange& what_changed)
|
|
{
|
|
if (what_changed.contains (Properties::name)) {
|
|
set_name (_send_to->name ());
|
|
}
|
|
}
|
|
|
|
void
|
|
InternalSend::set_can_pan (bool yn)
|
|
{
|
|
if (_panshell) {
|
|
_panshell->set_bypassed (!yn);
|
|
}
|
|
}
|
|
|
|
void
|
|
InternalSend::cycle_start (pframes_t /*nframes*/)
|
|
{
|
|
for (BufferSet::audio_iterator b = mixbufs.audio_begin(); b != mixbufs.audio_end(); ++b) {
|
|
b->prepare ();
|
|
}
|
|
}
|