Object extension.

Port resize extension.
Sensible extension(s) implementation design for Ingen.
Replace string port extension support in Ingen with Object port extension.
Implement port resize extension in Ingen.
Some test plugins for this stuff.


git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2260 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 43 insertions, 8 deletions

diff --git a/src/engine/NodeBase.cpp b/src/engine/NodeBase.cpp
index bdacfe80..25660c37 100644
--- a/src/engine/NodeBase.cpp
+++ b/src/engine/NodeBase.cpp
@@ -40,14 +40,15 @@ NodeBase::NodeBase(PluginImpl* plugin, const string& name, bool polyphonic, Patc
 	, _polyphony((polyphonic && parent) ? parent->internal_polyphony() : 1)
 	, _srate(srate)
 	, _buffer_size(buffer_size)
-	, _activated(false)
-	, _traversed(false)
+	, _valid_ports(NULL)
 	, _input_ready(1)
 	, _process_lock(0)
 	, _n_inputs_ready(0)
 	, _ports(NULL)
 	, _providers(new Raul::List<NodeImpl*>())
 	, _dependants(new Raul::List<NodeImpl*>())
+	, _activated(false)
+	, _traversed(false)
 {
 	assert(_plugin);
 	assert(_polyphony > 0);
@@ -62,6 +63,8 @@ NodeBase::~NodeBase()
 
 	delete _providers;
 	delete _dependants;
+
+	free(_valid_ports);
 }
 
 
@@ -202,27 +205,59 @@ NodeBase::signal_input_ready()
 /** Prepare to run a cycle (in the audio thread)
  */
 void
-NodeBase::pre_process(ProcessContext& context)
+NodeBase::pre_process(Context& context)
 {
 	assert(ThreadManager::current_thread_id() == THREAD_PROCESS);
 
 	// Mix down any ports with multiple inputs
-	for (size_t i=0; i < num_ports(); ++i)
-		_ports->at(i)->pre_process(context);
+	for (size_t i=0; i < num_ports(); ++i) {
+		PortImpl* const port = _ports->at(i);
+		if (port->context() == Context::AUDIO)
+			port->pre_process(context);
+	}
 }
 
 
 /** Prepare to run a cycle (in the audio thread)
  */
 void
-NodeBase::post_process(ProcessContext& context)
+NodeBase::post_process(Context& context)
 {
 	assert(ThreadManager::current_thread_id() == THREAD_PROCESS);
 
 	/* Write output ports */
-	if (_ports)
-		for (size_t i=0; i < _ports->size(); ++i)
+	for (size_t i=0; _ports && i < _ports->size(); ++i) {
+		PortImpl* const port = _ports->at(i);
+		if (port->context() == Context::AUDIO)
 			_ports->at(i)->post_process(context);
+	}
+}
+
+
+/** Flag a port as set (for message context)
+ */
+void
+NodeBase::set_port_valid(uint32_t port_index)
+{
+	// Allocate enough space for one bit per port
+	if (!_valid_ports)
+		_valid_ports = calloc(num_ports() / 8, 1);
+	lv2_contexts_set_port_valid(_valid_ports, port_index);
+}
+
+
+void*
+NodeBase::valid_ports()
+{
+	return _valid_ports;
+}
+
+
+void
+NodeBase::reset_valid_ports()
+{
+	if (_valid_ports)
+		memset(_valid_ports, '\0', num_ports() / 8);
 }