1 // soundmanager.cxx -- Wraps the SimGear OpenAl sound manager class
3 // Copyright (C) 2001 Curtis L. Olson - http://www.flightgear.org/~curt
5 // This program is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU General Public License as
7 // published by the Free Software Foundation; either version 2 of the
8 // License, or (at your option) any later version.
10 // This program is distributed in the hope that it will be useful, but
11 // WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with this program; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 #include <simgear/sound/soundmgr_openal.hxx>
26 #if defined(ENABLE_FLITE)
27 #include "VoiceSynthesizer.hxx"
29 #include "soundmanager.hxx"
30 #include "Main/globals.hxx"
31 #include "Main/fg_props.hxx"
36 #ifdef ENABLE_AUDIO_SUPPORT
38 * Listener class that monitors the sim state.
40 class Listener : public SGPropertyChangeListener
43 Listener(FGSoundManager *wrapper) : _wrapper(wrapper) {}
44 virtual void valueChanged (SGPropertyNode * node);
47 FGSoundManager* _wrapper;
50 void Listener::valueChanged(SGPropertyNode * node)
52 _wrapper->activate(node->getBoolValue());
55 FGSoundManager::FGSoundManager()
56 : _is_initialized(false),
58 _listener(new Listener(this))
62 FGSoundManager::~FGSoundManager()
66 void FGSoundManager::init()
68 _sound_working = fgGetNode("/sim/sound/working");
69 _sound_enabled = fgGetNode("/sim/sound/enabled");
70 _volume = fgGetNode("/sim/sound/volume");
71 _device_name = fgGetNode("/sim/sound/device-name");
73 _currentView = fgGetNode("sim/current-view");
74 _viewPosLon = fgGetNode("sim/current-view/viewer-lon-deg");
75 _viewPosLat = fgGetNode("sim/current-view/viewer-lat-deg");
76 _viewPosElev = fgGetNode("sim/current-view/viewer-elev-ft");
78 _velocityNorthFPS = fgGetNode("velocities/speed-north-fps", true);
79 _velocityEastFPS = fgGetNode("velocities/speed-east-fps", true);
80 _velocityDownFPS = fgGetNode("velocities/speed-down-fps", true);
82 _viewXoffset = _currentView->getNode("x-offset-m", true);
83 _viewYoffset = _currentView->getNode("y-offset-m", true);
84 _viewZoffset = _currentView->getNode("z-offset-m", true);
86 SGPropertyNode_ptr scenery_loaded = fgGetNode("sim/sceneryloaded", true);
87 scenery_loaded->addChangeListener(_listener.get());
92 void FGSoundManager::shutdown()
94 SGPropertyNode_ptr scenery_loaded = fgGetNode("sim/sceneryloaded", true);
95 scenery_loaded->removeChangeListener(_listener.get());
99 SGSoundMgr::shutdown();
102 void FGSoundManager::reinit()
104 _is_initialized = false;
106 if (_is_initialized && !_sound_working->getBoolValue())
108 // shutdown sound support
113 if (!_sound_working->getBoolValue())
118 update_device_list();
120 select_device(_device_name->getStringValue());
121 SGSoundMgr::reinit();
122 _is_initialized = true;
124 activate(fgGetBool("sim/sceneryloaded", true));
127 void FGSoundManager::activate(bool State)
133 SGSoundMgr::activate();
138 void FGSoundManager::update_device_list()
140 std::vector <const char*>devices = get_available_devices();
141 for (unsigned int i=0; i<devices.size(); i++) {
142 SGPropertyNode *p = fgGetNode("/sim/sound/devices/device", i, true);
143 p->setStringValue(devices[i]);
148 bool FGSoundManager::stationaryView() const
150 // this is an ugly hack to decide if the *viewer* is stationary,
151 // since we don't model the viewer velocity directly.
152 return (_viewXoffset->getDoubleValue() == 0.0) &&
153 (_viewYoffset->getDoubleValue() == 0.0) &&
154 (_viewZoffset->getDoubleValue() == 0.0);
157 // Update sound manager and propagate property values,
158 // since the sound manager doesn't read any properties itself.
159 // Actual sound update is triggered by the subsystem manager.
160 void FGSoundManager::update(double dt)
162 if (_is_initialized && _sound_working->getBoolValue())
164 bool enabled = _sound_enabled->getBoolValue();
165 if (enabled != _enabled)
175 SGGeod viewPosGeod(SGGeod::fromDegFt(_viewPosLon->getDoubleValue(),
176 _viewPosLat->getDoubleValue(),
177 _viewPosElev->getDoubleValue()));
178 SGVec3d cartPos = SGVec3d::fromGeod(viewPosGeod);
180 set_position(cartPos, viewPosGeod);
182 SGQuatd viewOrientation;
183 for (int i=0; i<4; ++i) {
184 viewOrientation[i] = _currentView->getChild("raw-orientation", i, true)->getDoubleValue();
187 set_orientation( viewOrientation );
189 SGVec3d velocity(SGVec3d::zeros());
190 if (!stationaryView()) {
191 velocity = SGVec3d(_velocityNorthFPS->getDoubleValue(),
192 _velocityEastFPS->getDoubleValue(),
193 _velocityDownFPS->getDoubleValue() );
196 set_velocity( velocity );
198 set_volume(_volume->getFloatValue());
199 SGSoundMgr::update(dt);
204 #if defined(ENABLE_FLITE)
205 VoiceSynthesizer * FGSoundManager::getSynthesizer( const std::string & voice )
207 std::map<std::string,VoiceSynthesizer*>::iterator it = _synthesizers.find(voice);
208 if( it == _synthesizers.end() ) {
209 VoiceSynthesizer * synthesizer = new FLITEVoiceSynthesizer( voice );
210 _synthesizers[voice] = synthesizer;
216 #endif // ENABLE_AUDIO_SUPPORT