X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fport_insert.cc;h=c352e22e55a6c83ba98cd28c02bb0ff2713094bb;hb=f8737f701264c8514006c7dbbf26025b62f98e39;hp=a46f7a7da3ea5188721e6c5225fbbff8dc9dc95b;hpb=f41149628955fc8145bef6db0c110b71664c0a3a;p=ardour.git

diff --git a/libs/ardour/port_insert.cc b/libs/ardour/port_insert.cc
index a46f7a7da3..c352e22e55 100644
--- a/libs/ardour/port_insert.cc
+++ b/libs/ardour/port_insert.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000,2007 Paul Davis 
+    Copyright (C) 2000,2007 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
@@ -19,19 +19,14 @@
 
 #include <string>
 
-#include <sigc++/bind.h>
-
-#include "pbd/failed_constructor.h"
 #include "pbd/xml++.h"
 
+#include "ardour/audio_port.h"
+#include "ardour/audioengine.h"
 #include "ardour/delivery.h"
+#include "ardour/io.h"
+#include "ardour/mtdm.h"
 #include "ardour/port_insert.h"
-#include "ardour/plugin.h"
-#include "ardour/port.h"
-#include "ardour/route.h"
-#include "ardour/buffer_set.h"
-
-#include "ardour/audioengine.h"
 #include "ardour/session.h"
 #include "ardour/types.h"
 
@@ -41,44 +36,115 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm)
-	: IOProcessor (s, true, true, string_compose (_("insert %1"), (bitslot = s.next_insert_id()) + 1), "")
-	, _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
+string
+PortInsert::name_and_id_new_insert (Session& s, uint32_t& bitslot)
 {
-	ProcessorCreated (this); /* EMIT SIGNAL */
+	bitslot = s.next_insert_id ();
+	return string_compose (_("insert %1"), bitslot+ 1);
 }
 
-PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm, const XMLNode& node)
-	: IOProcessor (s, true, true, "unnamed port insert")
-	, _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
+PortInsert::PortInsert (Session& s, boost::shared_ptr<Pannable> pannable, boost::shared_ptr<MuteMaster> mm)
+	: IOProcessor (s, true, true, name_and_id_new_insert (s, _bitslot), "", DataType::AUDIO, true)
+	, _out (new Delivery (s, _output, pannable, mm, _name, Delivery::Insert))
+{
+        _mtdm = 0;
+        _latency_detect = false;
+        _latency_flush_frames = 0;
+        _measured_latency = 0;
+}
 
+PortInsert::~PortInsert ()
 {
-	if (set_state (node)) {
-		throw failed_constructor();
-	}
+        _session.unmark_insert_id (_bitslot);
+        delete _mtdm;
+}
 
-	ProcessorCreated (this); /* EMIT SIGNAL */
+void
+PortInsert::start_latency_detection ()
+{
+	delete _mtdm;
+        _mtdm = new MTDM (_session.frame_rate());
+        _latency_flush_frames = 0;
+        _latency_detect = true;
+        _measured_latency = 0;
 }
 
-PortInsert::~PortInsert ()
+void
+PortInsert::stop_latency_detection ()
+{
+        _latency_flush_frames = signal_latency() + _session.engine().samples_per_cycle();
+        _latency_detect = false;
+}
+
+void
+PortInsert::set_measured_latency (framecnt_t n)
 {
-	GoingAway ();
+        _measured_latency = n;
+}
+
+framecnt_t
+PortInsert::latency() const
+{
+	/* because we deliver and collect within the same cycle,
+	   all I/O is necessarily delayed by at least frames_per_cycle().
+
+	   if the return port for insert has its own latency, we
+	   need to take that into account too.
+	*/
+
+	if (_measured_latency == 0) {
+		return _session.engine().samples_per_cycle() + _input->latency();
+	} else {
+		return _measured_latency;
+	}
 }
 
 void
-PortInsert::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes)
+PortInsert::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
 {
 	if (_output->n_ports().n_total() == 0) {
 		return;
 	}
 
+        if (_latency_detect) {
+
+                if (_input->n_ports().n_audio() != 0) {
+
+                        AudioBuffer& outbuf (_output->ports().nth_audio_port(0)->get_audio_buffer (nframes));
+                        Sample* in = _input->ports().nth_audio_port(0)->get_audio_buffer (nframes).data();
+                        Sample* out = outbuf.data();
+
+                        _mtdm->process (nframes, in, out);
+			
+                        outbuf.set_written (true);
+                }
+
+                return;
+
+        } else if (_latency_flush_frames) {
+
+                /* wait for the entire input buffer to drain before picking up input again so that we can't
+                   hear the remnants of whatever MTDM pumped into the pipeline.
+                */
+
+                silence (nframes);
+
+                if (_latency_flush_frames > nframes) {
+                        _latency_flush_frames -= nframes;
+                } else {
+                        _latency_flush_frames = 0;
+                }
+
+                return;
+        }
+
 	if (!_active && !_pending_active) {
 		/* deliver silence */
 		silence (nframes);
 		goto out;
 	}
 
-	_out->run (bufs, start_frame, end_frame, nframes);
+	_out->run (bufs, start_frame, end_frame, nframes, true);
 	_input->collect_input (bufs, nframes, ChanCount::ZERO);
 
   out:
@@ -94,56 +160,75 @@ PortInsert::get_state(void)
 XMLNode&
 PortInsert::state (bool full)
 {
-	XMLNode& node = Processor::state(full);
+	XMLNode& node = IOProcessor::state(full);
 	char buf[32];
 	node.add_property ("type", "port");
-	snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
+	snprintf (buf, sizeof (buf), "%" PRIu32, _bitslot);
 	node.add_property ("bitslot", buf);
+        snprintf (buf, sizeof (buf), "%" PRId64, _measured_latency);
+        node.add_property("latency", buf);
+        snprintf (buf, sizeof (buf), "%u", _session.get_block_size());
+        node.add_property("block_size", buf);
 
 	return node;
 }
 
 int
-PortInsert::set_state(const XMLNode& node)
+PortInsert::set_state (const XMLNode& node, int version)
 {
 	XMLNodeList nlist = node.children();
 	XMLNodeIterator niter;
 	XMLPropertyList plist;
 	const XMLProperty *prop;
 
+	const XMLNode* insert_node = &node;
+
+	// legacy sessions: search for child Redirect node
+	for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+		if ((*niter)->name() == "Redirect") {
+			insert_node = *niter;
+			break;
+		}
+	}
+
+	IOProcessor::set_state (*insert_node, version);
+
 	if ((prop = node.property ("type")) == 0) {
 		error << _("XML node describing port insert is missing the `type' field") << endmsg;
 		return -1;
 	}
-	
+
 	if (prop->value() != "port") {
 		error << _("non-port insert XML used for port plugin insert") << endmsg;
 		return -1;
 	}
 
-	if ((prop = node.property ("bitslot")) == 0) {
-		bitslot = _session.next_insert_id();
-	} else {
-		sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
-		_session.mark_insert_id (bitslot);
-	}
-
-	const XMLNode* insert_node = &node;
-
-	// legacy sessions: search for child IOProcessor node
-	for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
-		if ((*niter)->name() == "IOProcessor") {
-			insert_node = *niter;
-			break;
+        uint32_t blocksize = 0;
+        if ((prop = node.property ("block_size")) != 0) {
+                sscanf (prop->value().c_str(), "%u", &blocksize);
+        }
+
+        //if the jack period is the same as when the value was saved, we can recall our latency..
+        if ( (_session.get_block_size() == blocksize) && (prop = node.property ("latency")) != 0) {
+                uint32_t latency = 0;
+                sscanf (prop->value().c_str(), "%u", &latency);
+                _measured_latency = latency;
+        }
+
+	if (!node.property ("ignore-bitslot")) {
+		if ((prop = node.property ("bitslot")) == 0) {
+			_bitslot = _session.next_insert_id();
+		} else {
+			_session.unmark_insert_id (_bitslot);
+			sscanf (prop->value().c_str(), "%" PRIu32, &_bitslot);
+			_session.mark_insert_id (_bitslot);
 		}
 	}
-	
-	Processor::set_state (*insert_node);
 
 	return 0;
 }
 
-ARDOUR::nframes_t 
+ARDOUR::framecnt_t
 PortInsert::signal_latency() const
 {
 	/* because we deliver and collect within the same cycle,
@@ -153,12 +238,19 @@ PortInsert::signal_latency() const
 	   need to take that into account too.
 	*/
 
-	return _session.engine().frames_per_cycle() + _input->signal_latency();
+        if (_measured_latency == 0) {
+                return _session.engine().samples_per_cycle() + _input->signal_latency();
+        } else {
+                return _measured_latency;
+        }
 }
 
+/** Caller must hold process lock */
 bool
 PortInsert::configure_io (ChanCount in, ChanCount out)
 {
+	assert (!AudioEngine::instance()->process_lock().trylock());
+
 	/* for an insert, processor input corresponds to IO output, and vice versa */
 
 	if (_input->ensure_io (in, false, this) != 0) {
@@ -173,7 +265,7 @@ PortInsert::configure_io (ChanCount in, ChanCount out)
 }
 
 bool
-PortInsert::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
+PortInsert::can_support_io_configuration (const ChanCount& in, ChanCount& out)
 {
 	out = in;
 	return true;
@@ -184,7 +276,23 @@ PortInsert::set_name (const std::string& name)
 {
 	bool ret = Processor::set_name (name);
 
-	ret = (_input->set_name (name) || _output->set_name (name));
+	ret = (ret && _input->set_name (name) && _output->set_name (name));
 
 	return ret;
 }
+
+void
+PortInsert::activate ()
+{
+	IOProcessor::activate ();
+
+	_out->activate ();
+}
+
+void
+PortInsert::deactivate ()
+{
+	IOProcessor::deactivate ();
+
+	_out->deactivate ();
+}