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authorDavid Robillard <d@drobilla.net>2006-06-09 15:07:31 +0000
committerDavid Robillard <d@drobilla.net>2006-06-09 15:07:31 +0000
commitacbda29f838280ba98cf9e9e539e9d8a6e8fc6ad (patch)
treee31b37a2456e6d1e564c9a7146c88be259d338b0 /src/engine/LashDriver.cpp
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Added Om aka Graph aka god knows what
git-svn-id: http://svn.drobilla.net/lad/grauph@9 a436a847-0d15-0410-975c-d299462d15a1
Diffstat (limited to 'src/engine/LashDriver.cpp')
-rw-r--r--src/engine/LashDriver.cpp159
1 files changed, 159 insertions, 0 deletions
diff --git a/src/engine/LashDriver.cpp b/src/engine/LashDriver.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 "LashDriver.h"
+#include "config.h"
+#include <iostream>
+#include <string>
+#include <cassert>
+#include "OmApp.h"
+
+using std::cerr; using std::cout; using std::endl;
+using std::string;
+
+namespace Om {
+
+
+LashDriver::LashDriver(OmApp* app, lash_args_t* args)
+: m_app(app),
+ m_client(NULL),
+ m_alsa_client_id(0) // FIXME: appropriate sentinel?
+{
+ m_client = lash_init(args, PACKAGE_NAME,
+ /*LASH_Config_Data_Set|LASH_Config_File*/0, LASH_PROTOCOL(2, 0));
+ if (m_client == NULL) {
+ cerr << "[LashDriver] Failed to connect to LASH. Session management will not function." << endl;
+ } else {
+ cout << "[LashDriver] Lash initialised" << endl;
+ lash_event_t* event = lash_event_new_with_type(LASH_Client_Name);
+ lash_event_set_string(event, "Om");
+ lash_send_event(m_client, event);
+ }
+}
+
+
+/** Set the Jack client name to be sent to LASH.
+ * The name isn't actually send until restore_finished() is called.
+ */
+void
+LashDriver::set_jack_client_name(const char* name)
+{
+ m_jack_client_name = name;
+ lash_jack_client_name(m_client, m_jack_client_name.c_str());
+}
+
+
+/** Set the Alsa client ID to be sent to LASH.
+ * The name isn't actually send until restore_finished() is called.
+ */
+void
+LashDriver::set_alsa_client_id(int id)
+{
+ m_alsa_client_id = id;
+ lash_alsa_client_id(m_client, m_alsa_client_id);
+}
+
+
+/** Notify LASH of our port names so it can restore connections.
+ * The Alsa client ID and Jack client name MUST be set before calling
+ * this function.
+ */
+void
+LashDriver::restore_finished()
+{
+ assert(m_jack_client_name != "");
+ assert(m_alsa_client_id != 0);
+
+ cerr << "LASH RESTORE FINISHED " << m_jack_client_name << " - " << m_alsa_client_id << endl;
+
+ lash_jack_client_name(m_client, m_jack_client_name.c_str());
+ lash_alsa_client_id(m_client, m_alsa_client_id);
+}
+
+
+void
+LashDriver::process_events()
+{
+ assert(m_client != NULL);
+
+ lash_event_t* ev = NULL;
+ lash_config_t* conf = NULL;
+
+ // Process events
+ while ((ev = lash_get_event(m_client)) != NULL) {
+ handle_event(ev);
+ lash_event_destroy(ev);
+ }
+
+ // Process configs
+ while ((conf = lash_get_config(m_client)) != NULL) {
+ handle_config(conf);
+ lash_config_destroy(conf);
+ }
+}
+
+
+void
+LashDriver::handle_event(lash_event_t* ev)
+{
+ LASH_Event_Type type = lash_event_get_type(ev);
+ const char* c_str = lash_event_get_string(ev);
+ string str = (c_str == NULL) ? "" : c_str;
+
+ //cout << "[LashDriver] LASH Event. Type = " << type << ", string = " << str << "**********" << endl;
+
+ /*if (type == LASH_Save_File) {
+ //cout << "[LashDriver] LASH Save File - " << str << endl;
+ m_app->store_window_location();
+ m_app->state_manager()->save(str.append("/locations"));
+ lash_send_event(m_client, lash_event_new_with_type(LASH_Save_File));
+ } else if (type == LASH_Restore_File) {
+ //cout << "[LashDriver] LASH Restore File - " << str << endl;
+ m_app->state_manager()->load(str.append("/locations"));
+ m_app->update_state();
+ lash_send_event(m_client, lash_event_new_with_type(LASH_Restore_File));
+ } else if (type == LASH_Save_Data_Set) {
+ //cout << "[LashDriver] LASH Save Data Set - " << endl;
+
+ // Tell LASH we're done
+ lash_send_event(m_client, lash_event_new_with_type(LASH_Save_Data_Set));
+ } else*/
+ if (type == LASH_Quit) {
+ //stop_thread();
+ m_client = NULL;
+ m_app->quit();
+ } else {
+ cerr << "[LashDriver] WARNING: Unhandled lash event, type " << static_cast<int>(type) << endl;
+ }
+}
+
+
+void
+LashDriver::handle_config(lash_config_t* conf)
+{
+ const char* key = NULL;
+ const void* val = NULL;
+ size_t val_size = 0;
+
+ //cout << "[LashDriver] LASH Config. Key = " << key << endl;
+
+ key = lash_config_get_key(conf);
+ val = lash_config_get_value(conf);
+ val_size = lash_config_get_value_size(conf);
+}
+
+
+} // namespace Om