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Diffstat (limited to 'src/engine/LashDriver.cpp')
| -rw-r--r-- | src/engine/LashDriver.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/engine/LashDriver.cpp b/src/engine/LashDriver.cpp new file mode 100644 index 00000000..f42f87f2 --- /dev/null +++ b/src/engine/LashDriver.cpp @@ -0,0 +1,159 @@ +/* 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 |