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Add Lua API to set plugin properties

This commit is contained in:
Robin Gareus 2024-03-24 21:52:56 +01:00
parent 4d5175e32e
commit cfa45be99f
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
3 changed files with 50 additions and 0 deletions
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9
libs/ardour/ardour/lua_api.h
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@ -158,6 +158,15 @@ namespace ARDOUR { namespace LuaAPI {
*/
float get_plugin_insert_param (std::shared_ptr<ARDOUR::PluginInsert> pi, uint32_t which, bool &ok);
/** set a plugin property (LV2 plugins only)
*
* @param pi Plugin-Insert
* @param uri the identifier of the parameter
* @param value the value to set (boolean, integer, float, string/path)
* @returns true on success, false if the given plugin has no property with the given URI
*/
bool set_plugin_insert_property (std::shared_ptr<ARDOUR::PluginInsert> pi, std::string const& uri, luabridge::LuaRef value);
/**
* A convenience function to get a Automation Lists and ParameterDescriptor
* for a given plugin control.

40
libs/ardour/lua_api.cc
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@ -39,6 +39,7 @@
#include "ardour/region_factory.h"
#include "ardour/simple_export.h"
#include "ardour/source_factory.h"
#include "ardour/uri_map.h"
#include "LuaBridge/LuaBridge.h"
@ -280,6 +281,45 @@ ARDOUR::LuaAPI::get_plugin_insert_param (std::shared_ptr<PluginInsert> pi, uint3
return plugin->get_parameter ( controlid );
}
bool
ARDOUR::LuaAPI::set_plugin_insert_property (std::shared_ptr<PluginInsert> pi, std::string const& uri, luabridge::LuaRef value)
{
std::shared_ptr<Plugin> plugin = pi->plugin ();
if (!plugin) { return false; }
uint32_t key = URIMap::instance ().uri_to_id (uri.c_str ());
const ParameterDescriptor& desc = plugin->get_property_descriptor (key);
switch (desc.datatype) {
case Variant::PATH:
plugin->set_property(desc.key, Variant(Variant::PATH, value.cast<string> ()));
return true;
case Variant::STRING:
plugin->set_property(desc.key, Variant(Variant::STRING, value.cast<string> ()));
return true;
case Variant::URI:
plugin->set_property(desc.key, Variant(Variant::URI, value.cast<string> ()));
return true;
case Variant::BOOL:
plugin->set_property(desc.key, Variant(Variant::BOOL, value.cast<bool> ()));
return true;
case Variant::DOUBLE:
plugin->set_property(desc.key, Variant(Variant::DOUBLE, value.cast<double> ()));
return true;
case Variant::FLOAT:
plugin->set_property(desc.key, Variant(Variant::FLOAT, value.cast<float> ()));
return true;
case Variant::INT:
plugin->set_property(desc.key, Variant(Variant::INT, value.cast<int> ()));
return true;
case Variant::LONG:
plugin->set_property(desc.key, Variant(Variant::LONG, value.cast<long> ()));
return true;
default:
printf ("NO VARIANT\n");
break;
}
return false;
}
bool
ARDOUR::LuaAPI::set_processor_param (std::shared_ptr<Processor> proc, uint32_t which, float val)
{

1
libs/ardour/luabindings.cc
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@ -3132,6 +3132,7 @@ LuaBindings::common (lua_State* L)
.addFunction ("new_plugin_with_time_domain", ARDOUR::LuaAPI::new_plugin_with_time_domain)
.addFunction ("set_processor_param", ARDOUR::LuaAPI::set_processor_param)
.addFunction ("set_plugin_insert_param", ARDOUR::LuaAPI::set_plugin_insert_param)
.addFunction ("set_plugin_insert_property", ARDOUR::LuaAPI::set_plugin_insert_property)
.addFunction ("reset_processor_to_default", ARDOUR::LuaAPI::reset_processor_to_default)
.addFunction ("set_automation_data", ARDOUR::LuaAPI::set_automation_data)
.addRefFunction ("get_processor_param", ARDOUR::LuaAPI::get_processor_param)