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-rw-r--r--src/libs/engine/events/ConnectionEvent.cpp240
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diff --git a/src/libs/engine/events/ConnectionEvent.cpp b/src/libs/engine/events/ConnectionEvent.cpp
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+/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
+ *
+ * Om 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.
+ *
+ * Om 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 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.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "ConnectionEvent.h"
+#include <string>
+#include "Responder.h"
+#include "Om.h"
+#include "OmApp.h"
+#include "ConnectionBase.h"
+#include "InputPort.h"
+#include "OutputPort.h"
+#include "Patch.h"
+#include "ClientBroadcaster.h"
+#include "Port.h"
+#include "PortInfo.h"
+#include "Maid.h"
+#include "ObjectStore.h"
+#include "util/Path.h"
+
+using std::string;
+namespace Om {
+
+
+//// ConnectionEvent ////
+
+
+ConnectionEvent::ConnectionEvent(CountedPtr<Responder> responder, const string& src_port_path, const string& dst_port_path)
+: QueuedEvent(responder),
+ m_src_port_path(src_port_path),
+ m_dst_port_path(dst_port_path),
+ m_patch(NULL),
+ m_src_port(NULL),
+ m_dst_port(NULL),
+ m_typed_event(NULL),
+ m_error(NO_ERROR)
+{
+}
+
+
+ConnectionEvent::~ConnectionEvent()
+{
+ delete m_typed_event;
+}
+
+
+void
+ConnectionEvent::pre_process()
+{
+ if (m_src_port_path.parent().parent() != m_dst_port_path.parent().parent()) {
+ m_error = PARENT_PATCH_DIFFERENT;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ /*m_patch = om->object_store()->find_patch(m_src_port_path.parent().parent());
+
+ if (m_patch == NULL) {
+ m_error = PORT_NOT_FOUND;
+ QueuedEvent::pre_process();
+ return;
+ }*/
+
+ Port* port1 = om->object_store()->find_port(m_src_port_path);
+ Port* port2 = om->object_store()->find_port(m_dst_port_path);
+
+ if (port1 == NULL || port2 == NULL) {
+ m_error = PORT_NOT_FOUND;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ if (port1->port_info()->type() != port2->port_info()->type()) {
+ m_error = TYPE_MISMATCH;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ if (port1->port_info()->is_output() && port2->port_info()->is_input()) {
+ m_src_port = port1;
+ m_dst_port = port2;
+ } else if (port2->port_info()->is_output() && port1->port_info()->is_input()) {
+ m_src_port = port2;
+ m_dst_port = port1;
+ } else {
+ m_error = TYPE_MISMATCH;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ // Create the typed event to actually do the work
+ const PortType type = port1->port_info()->type();
+ if (type == AUDIO || type == CONTROL) {
+ m_typed_event = new TypedConnectionEvent<sample>(m_responder,
+ (OutputPort<sample>*)m_src_port, (InputPort<sample>*)m_dst_port);
+ } else if (type == MIDI) {
+ m_typed_event = new TypedConnectionEvent<MidiMessage>(m_responder,
+ (OutputPort<MidiMessage>*)m_src_port, (InputPort<MidiMessage>*)m_dst_port);
+ } else {
+ m_error = TYPE_MISMATCH;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ m_typed_event->pre_process();
+
+ QueuedEvent::pre_process();
+}
+
+
+void
+ConnectionEvent::execute(samplecount offset)
+{
+ QueuedEvent::execute(offset);
+
+ if (m_error == NO_ERROR)
+ m_typed_event->execute(offset);
+}
+
+
+void
+ConnectionEvent::post_process()
+{
+ if (m_error == NO_ERROR) {
+ m_typed_event->post_process();
+ } else {
+ // FIXME: better error messages
+ string msg = "Unable to make connection ";
+ msg.append(m_src_port_path + " -> " + m_dst_port_path);
+ m_responder->respond_error(msg);
+ }
+}
+
+
+
+//// TypedConnectionEvent ////
+
+
+template <typename T>
+TypedConnectionEvent<T>::TypedConnectionEvent(CountedPtr<Responder> responder, OutputPort<T>* src_port, InputPort<T>* dst_port)
+: QueuedEvent(responder),
+ m_src_port(src_port),
+ m_dst_port(dst_port),
+ m_patch(NULL),
+ m_process_order(NULL),
+ m_connection(NULL),
+ m_port_listnode(NULL),
+ m_succeeded(true)
+{
+ assert(src_port != NULL);
+ assert(dst_port != NULL);
+}
+
+template <typename T>
+TypedConnectionEvent<T>::~TypedConnectionEvent()
+{
+ // FIXME: haaaack, prevent a double delete
+ // this class is unusable by anything other than ConnectionEvent because of this
+ //m_responder = NULL;
+}
+
+
+template <typename T>
+void
+TypedConnectionEvent<T>::pre_process()
+{
+ Node* const src_node = m_src_port->parent_node();
+ Node* const dst_node = m_dst_port->parent_node();
+
+ m_patch = src_node->parent_patch();
+
+ if (src_node == NULL || dst_node == NULL) {
+ m_succeeded = false;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ if (src_node->parent() != m_patch || dst_node->parent() != m_patch) {
+ m_succeeded = false;
+ QueuedEvent::pre_process();
+ return;
+ }
+
+ m_connection = new ConnectionBase<T>(m_src_port, m_dst_port);
+ m_port_listnode = new ListNode<ConnectionBase<T>*>(m_connection);
+ m_patch_listnode = new ListNode<Connection*>(m_connection);
+
+ dst_node->providers()->push_back(new ListNode<Node*>(src_node));
+ src_node->dependants()->push_back(new ListNode<Node*>(dst_node));
+
+ if (m_patch->process())
+ m_process_order = m_patch->build_process_order();
+}
+
+
+template <typename T>
+void
+TypedConnectionEvent<T>::execute(samplecount offset)
+{
+ if (m_succeeded) {
+ // These must be inserted here, since they're actually used by the audio thread
+ m_dst_port->add_connection(m_port_listnode);
+ m_patch->add_connection(m_patch_listnode);
+ if (m_patch->process_order() != NULL)
+ om->maid()->push(m_patch->process_order());
+ m_patch->process_order(m_process_order);
+ }
+}
+
+
+template <typename T>
+void
+TypedConnectionEvent<T>::post_process()
+{
+ if (m_succeeded) {
+ assert(m_connection != NULL);
+
+ m_responder->respond_ok();
+
+ om->client_broadcaster()->send_connection(m_connection);
+ } else {
+ m_responder->respond_error("Unable to make connection.");
+ }
+}
+
+
+} // namespace Om
+