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Fix loading send gain automation

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This cleans up various issues that have been accumulated over the past
and fixes bugs introduced in d4e023e1 and e31f5d99.

Previously GainControl as saved as part of the Amp, however the
automation was saved via Send (is-a Automatable).

In d4e023e1cb, the GainControl was changed a "BusSendLevel"
parameter, but AutomationList was not updated. This prevented
loading existing automation (control parameter was not found).
This commit is contained in:
Robin Gareus 2020-02-18 20:44:49 +01:00
parent 7c35f45681
commit 720664d9d3
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 44 additions and 10 deletions
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54
libs/ardour/send.cc
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@ -30,6 +30,7 @@
#include "ardour/buffer_set.h"
#include "ardour/debug.h"
#include "ardour/delayline.h"
#include "ardour/event_type_map.h"
#include "ardour/gain_control.h"
#include "ardour/io.h"
#include "ardour/meter.h"
@ -100,7 +101,7 @@ Send::Send (Session& s, boost::shared_ptr<Pannable> p, boost::shared_ptr<MuteMas
//boost_debug_shared_ptr_mark_interesting (this, "send");
boost::shared_ptr<AutomationList> gl (new AutomationList (Evoral::Parameter (GainAutomation)));
boost::shared_ptr<AutomationList> gl (new AutomationList (Evoral::Parameter (BusSendLevel)));
_gain_control = boost::shared_ptr<GainControl> (new GainControl (_session, Evoral::Parameter(BusSendLevel), gl));
_gain_control->set_flags (Controllable::Flag ((int)_gain_control->flags() | Controllable::InlineControl));
add_control (_gain_control);
@ -279,7 +280,7 @@ Send::state ()
node.set_property ("selfdestruct", _remove_on_disconnect);
node.add_child_nocopy (_amp->get_state ());
node.add_child_nocopy (_gain_control->get_state());
return node;
}
@ -291,11 +292,51 @@ Send::set_state (const XMLNode& node, int version)
return set_state_2X (node, version);
}
XMLProperty const * prop;
XMLNode* gain_node;
if ((gain_node = node.child (Controllable::xml_node_name.c_str ())) != 0) {
_gain_control->set_state (*gain_node, version);
}
if (version <= 6000) {
/* convert GainAutomation to BusSendLevel
*
* (early Ardour 6.0-pre0 and Mixbus 6.0 used "BusSendLevel"
* control with GainAutomation, so we check version <= 6000.
* New A6 sessions do not have a GainAutomation parameter,
* so this is safe.)
*
* Normally this is restored via
* Delivery::set_state() -> Processor::set_state()
* -> Automatable::set_automation_xml_state()
*/
XMLNodeList nlist;
XMLNode* automation = node.child ("Automation");
if (automation) {
nlist = automation->children();
}
for (XMLNodeIterator i = nlist.begin(); i != nlist.end(); ++i) {
if ((*i)->name() != "AutomationList") {
continue;
}
XMLProperty const* id_prop = (*i)->property("automation-id");
if (!id_prop) {
continue;
}
Evoral::Parameter param = EventTypeMap::instance().from_symbol (id_prop->value());
if (param.type() != GainAutomation) {
continue;
}
XMLNode xn (**i);
xn.set_property ("automation-id", EventTypeMap::instance().to_symbol(Evoral::Parameter (BusSendLevel)));
_gain_control->alist()->set_state (xn, version);
break;
}
}
Delivery::set_state (node, version);
if (node.property ("ignore-bitslot") == 0) {
XMLProperty const* prop;
/* don't try to reset bitslot if there is a node for it already: this can cause
issues with the session's accounting of send ID's
@ -328,13 +369,6 @@ Send::set_state (const XMLNode& node, int version)
node.get_property (X_("selfdestruct"), _remove_on_disconnect);
XMLNodeList nlist = node.children();
for (XMLNodeIterator i = nlist.begin(); i != nlist.end(); ++i) {
if ((*i)->name() == X_("Processor")) {
_amp->set_state (**i, version);
}
}
_send_delay->set_name ("Send-" + name());
_thru_delay->set_name ("Thru-" + name());