X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FMain%2Fmain.cxx;h=8c64afae12ef6a81e6590d292b4f6f2bae48edad;hb=93c6d15e194370c67b4d91ef58492002b78049b5;hp=cd5bba53a2a74ca409bb926a92105e206fbe15f0;hpb=a8a971b79d5357c81cf68d9f98b462c1cda79158;p=flightgear.git

diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index cd5bba53a..07c10598a 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -32,27 +32,25 @@
 #  include <signal.h>
 #endif
 
-#ifdef SG_MATH_EXCEPTION_CLASH
-#  include <math.h>
-#endif
-
-#ifdef HAVE_WINDOWS_H
-#  include <windows.h>
-#  include <float.h>
-#endif
+#include <iostream>
 
 #include <plib/netSocket.h>
 
-#include <simgear/props/props.hxx>
-#include <simgear/timing/sg_time.hxx>
-#include <simgear/math/sg_random.h>
+#include <osg/Camera>
+#include <osg/GraphicsContext>
+#include <osgDB/Registry>
 
 // Class references
-#include <simgear/ephemeris/ephemeris.hxx>
 #include <simgear/scene/model/modellib.hxx>
 #include <simgear/scene/material/matlib.hxx>
 #include <simgear/scene/model/animation.hxx>
 #include <simgear/scene/sky/sky.hxx>
+#include <simgear/structure/event_mgr.hxx>
+#include <simgear/props/AtomicChangeListener.hxx>
+#include <simgear/props/props.hxx>
+#include <simgear/timing/sg_time.hxx>
+#include <simgear/math/sg_random.h>
+
 #include <Time/light.hxx>
 #include <Include/general.hxx>
 #include <Aircraft/replay.hxx>
@@ -63,33 +61,36 @@
 #include <Model/acmodel.hxx>
 #include <Scenery/scenery.hxx>
 #include <Scenery/tilemgr.hxx>
+#include <Sound/fg_fx.hxx>
 #include <Sound/beacon.hxx>
 #include <Sound/morse.hxx>
-#include <FDM/flight.hxx>
-#include <ATC/ATCmgr.hxx>
-#include <ATC/AIMgr.hxx>
+#include <Sound/fg_fx.hxx>
+#include <ATCDCL/ATCmgr.hxx>
+#include <ATCDCL/AIMgr.hxx>
 #include <Time/tmp.hxx>
-#include <Time/fg_timer.hxx>
 #include <Environment/environment_mgr.hxx>
+#include <Environment/ephemeris.hxx>
 #include <GUI/new_gui.hxx>
 #include <MultiPlayer/multiplaymgr.hxx>
 
+#include "CameraGroup.hxx"
 #include "fg_commands.hxx"
 #include "fg_io.hxx"
 #include "renderer.hxx"
 #include "splash.hxx"
 #include "main.hxx"
-
-
+#include "util.hxx"
+#include "fg_init.hxx"
+#include "fg_os.hxx"
+#include "WindowSystemAdapter.hxx"
+#include <Main/viewer.hxx>
 
 static double real_delta_time_sec = 0.0;
 double delta_time_sec = 0.0;
-extern float init_volume;
 
+using namespace flightgear;
 
-#ifdef macintosh
-#  include <console.h>		// -dw- for command line dialog
-#endif
+using std::cerr;
 
 // This is a record containing a bit of global housekeeping information
 FGGeneral general;
@@ -103,123 +104,44 @@ long global_multi_loop;
 SGTimeStamp last_time_stamp;
 SGTimeStamp current_time_stamp;
 
+void fgInitSoundManager();
+void fgSetNewSoundDevice(const char *);
+
 // The atexit() function handler should know when the graphical subsystem
 // is initialized.
 extern int _bootstrap_OSInit;
 
-
-
-// Update internal time dependent calculations (i.e. flight model)
-// FIXME: this distinction is obsolete; all subsystems now get delta
-// time on update.
-void fgUpdateTimeDepCalcs() {
-    static bool inited = false;
-
-    static const SGPropertyNode *replay_state
-        = fgGetNode( "/sim/freeze/replay-state", true );
-    static SGPropertyNode *replay_time
-        = fgGetNode( "/sim/replay/time", true );
-    // static const SGPropertyNode *replay_end_time
-    //     = fgGetNode( "/sim/replay/end-time", true );
-
-    //SG_LOG(SG_FLIGHT,SG_INFO, "Updating time dep calcs()");
-
-    // Initialize the FDM here if it hasn't been and if we have a
-    // scenery elevation hit.
-
-    // cout << "cur_fdm_state->get_inited() = " << cur_fdm_state->get_inited() 
-    //      << " cur_elev = " << scenery.get_cur_elev() << endl;
-
-    if (!cur_fdm_state->get_inited()) {
-        // Check for scenery around the aircraft.
-        double lon = fgGetDouble("/sim/presets/longitude-deg");
-        double lat = fgGetDouble("/sim/presets/latitude-deg");
-        // We require just to have 50 meter scenery availabe around
-        // the aircraft.
-        double range = 50.0;
-        if (globals->get_tile_mgr()->scenery_available(lat, lon, range)) {
-            SG_LOG(SG_FLIGHT,SG_INFO, "Finally initializing fdm");
-            cur_fdm_state->init();
-            if ( cur_fdm_state->get_bound() ) {
-                cur_fdm_state->unbind();
-            }
-            cur_fdm_state->bind();
-        }
-    }
-
-    // conceptually, the following block could be done for each fdm
-    // instance ...
-    if ( cur_fdm_state->get_inited() ) {
-        // we have been inited, and  we are good to go ...
-
-        if ( !inited ) {
-            inited = true;
-            fgSetBool("/sim/signals/fdm-initialized", true);
-        }
-
-        if ( replay_state->getIntValue() == 0 ) {
-            // replay off, run fdm
-            cur_fdm_state->update( delta_time_sec );
-        } else {
-            FGReplay *r = (FGReplay *)(globals->get_subsystem( "replay" ));
-            r->replay( replay_time->getDoubleValue() );
-            if ( replay_state->getIntValue() == 1 ) {
-                // normal playback
-                replay_time->setDoubleValue( replay_time->getDoubleValue()
-                                             + ( delta_time_sec
-                                               * fgGetInt("/sim/speed-up") ) );
-            } else if ( replay_state->getIntValue() == 2 ) {
-                // paused playback (don't advance replay time)
-            }
-        }
-    } else {
-        // do nothing, fdm isn't inited yet
-    }
-
-    globals->get_model_mgr()->update(delta_time_sec);
-    globals->get_aircraft_model()->update(delta_time_sec);
-
-    // update the view angle
-    globals->get_viewmgr()->update(delta_time_sec);
-
-    // Update solar system
-    globals->get_ephem()->update( globals->get_time_params()->getMjd(),
-                                  globals->get_time_params()->getLst(),
-                                  cur_fdm_state->get_Latitude() );
-
-}
-
-
-void fgInitTimeDepCalcs( void ) {
-    // noop for now
-}
-
-
-static const double alt_adjust_ft = 3.758099;
-static const double alt_adjust_m = alt_adjust_ft * SG_FEET_TO_METER;
-
-
 // What should we do when we have nothing else to do?  Let's get ready
 // for the next move and update the display?
 static void fgMainLoop( void ) {
     int model_hz = fgGetInt("/sim/model-hz");
 
-    static const SGPropertyNode *longitude
+    static SGConstPropertyNode_ptr longitude
         = fgGetNode("/position/longitude-deg");
-    static const SGPropertyNode *latitude
+    static SGConstPropertyNode_ptr latitude
         = fgGetNode("/position/latitude-deg");
-    static const SGPropertyNode *altitude
+    static SGConstPropertyNode_ptr altitude
         = fgGetNode("/position/altitude-ft");
-    static const SGPropertyNode *clock_freeze
+    static SGConstPropertyNode_ptr vn_fps
+        = fgGetNode("/velocities/speed-north-fps");
+    static SGConstPropertyNode_ptr ve_fps
+        = fgGetNode("/velocities/speed-east-fps");
+    static SGConstPropertyNode_ptr vd_fps
+        = fgGetNode("/velocities/speed-down-fps");
+    static SGConstPropertyNode_ptr clock_freeze
         = fgGetNode("/sim/freeze/clock", true);
-    static const SGPropertyNode *cur_time_override
+    static SGConstPropertyNode_ptr cur_time_override
         = fgGetNode("/sim/time/cur-time-override", true);
-    static const SGPropertyNode *max_simtime_per_frame
+    static SGConstPropertyNode_ptr max_simtime_per_frame
         = fgGetNode("/sim/max-simtime-per-frame", true);
+    static SGPropertyNode_ptr frame_signal
+        = fgGetNode("/sim/signals/frame", true);
 
+    frame_signal->fireValueChanged();
     SGCloudLayer::enable_bump_mapping = fgGetBool("/sim/rendering/bump-mapping");
 
-    bool scenery_loaded = fgGetBool("sim/sceneryloaded") || fgGetBool("sim/sceneryloaded-override");
+    bool scenery_loaded = fgGetBool("sim/sceneryloaded");
+    bool wait_for_scenery = !(scenery_loaded || fgGetBool("sim/sceneryloaded-override"));
 
     // Update the elapsed time.
     static bool first_time = true;
@@ -229,7 +151,7 @@ static void fgMainLoop( void ) {
     }
 
     double throttle_hz = fgGetDouble("/sim/frame-rate-throttle-hz", 0.0);
-    if ( throttle_hz > 0.0 && scenery_loaded ) {
+    if ( throttle_hz > 0.0 && !wait_for_scenery ) {
         // optionally throttle the frame rate (to get consistent frame
         // rates or reduce cpu usage.
 
@@ -265,7 +187,7 @@ static void fgMainLoop( void ) {
         }
         current_time_stamp.stamp();
         /* Convert to ms */
-        double elapsed_us = current_time_stamp - last_time_stamp;
+        double elapsed_us = (current_time_stamp - last_time_stamp).toUSecs();
         if ( elapsed_us < frame_us ) {
             double requested_us = frame_us - elapsed_us;
             ulMilliSecondSleep ( (int)(requested_us / 1000.0) ) ;
@@ -278,7 +200,9 @@ static void fgMainLoop( void ) {
         // ulMilliSecondSleep() call is omitted this will peg the cpu
         // (which is just fine if FG is the only app you care about.)
         current_time_stamp.stamp();
-        while ( current_time_stamp - last_time_stamp < frame_us ) {
+        SGTimeStamp next_time_stamp = last_time_stamp;
+        next_time_stamp += SGTimeStamp::fromSec(1e-6*frame_us);
+        while ( current_time_stamp < next_time_stamp ) {
             current_time_stamp.stamp();
         }
     } else {
@@ -286,8 +210,7 @@ static void fgMainLoop( void ) {
         current_time_stamp.stamp();
     }
 
-    real_delta_time_sec
-        = double(current_time_stamp - last_time_stamp) / 1000000.0;
+    real_delta_time_sec = (current_time_stamp - last_time_stamp).toSecs();
 
     // Limit the time we need to spend in simulation loops
     // That means, if the /sim/max-simtime-per-frame value is strictly positive
@@ -302,19 +225,20 @@ static void fgMainLoop( void ) {
     if (0 < dtMax && dtMax < real_delta_time_sec)
         real_delta_time_sec = dtMax;
 
+    SGSubsystemGroup* fdmGroup = 
+      globals->get_subsystem_mgr()->get_group(SGSubsystemMgr::FDM);
+    fdmGroup->set_fixed_update_time(1.0 / model_hz);
+
     // round the real time down to a multiple of 1/model-hz.
     // this way all systems are updated the _same_ amount of dt.
-    {
-        static double rem = 0.0;
-        real_delta_time_sec += rem;
-        double hz = model_hz;
-        double nit = floor(real_delta_time_sec*hz);
-        rem = real_delta_time_sec - nit/hz;
-        real_delta_time_sec = nit/hz;
-    }
-
-
-    if (clock_freeze->getBoolValue() || !scenery_loaded) {
+    static double reminder = 0.0;
+    real_delta_time_sec += reminder;
+    global_multi_loop = long(floor(real_delta_time_sec*model_hz));
+    global_multi_loop = SGMisc<long>::max(0, global_multi_loop);
+    reminder = real_delta_time_sec - double(global_multi_loop)/double(model_hz);
+    real_delta_time_sec = double(global_multi_loop)/double(model_hz);
+
+    if (clock_freeze->getBoolValue() || wait_for_scenery) {
         delta_time_sec = 0;
     } else {
         delta_time_sec = real_delta_time_sec;
@@ -326,8 +250,6 @@ static void fgMainLoop( void ) {
     fgSetDouble("/sim/time/delta-realtime-sec", real_delta_time_sec);
     fgSetDouble("/sim/time/delta-sec", delta_time_sec);
 
-    static long remainder = 0;
-    long elapsed;
 #ifdef FANCY_FRAME_COUNTER
     int i;
     double accum;
@@ -338,34 +260,9 @@ static void fgMainLoop( void ) {
 
     SGTime *t = globals->get_time_params();
 
-    globals->get_event_mgr()->update(delta_time_sec);
-
     SG_LOG( SG_ALL, SG_DEBUG, "Running Main Loop");
     SG_LOG( SG_ALL, SG_DEBUG, "======= ==== ====");
 
-#if defined( ENABLE_PLIB_JOYSTICK )
-    // Read joystick and update control settings
-    // if ( fgGetString("/sim/control-mode") == "joystick" )
-    // {
-    //    fgJoystickRead();
-    // }
-#endif
-
-    // Fix elevation.  I'm just sticking this here for now, it should
-    // probably move eventually
-
-    /* printf("Before - ground = %.2f  runway = %.2f  alt = %.2f\n",
-           scenery.get_cur_elev(),
-           cur_fdm_state->get_Runway_altitude() * SG_FEET_TO_METER,
-           cur_fdm_state->get_Altitude() * SG_FEET_TO_METER); */
-
-    /* printf("Adjustment - ground = %.2f  runway = %.2f  alt = %.2f\n",
-           scenery.get_cur_elev(),
-           cur_fdm_state->get_Runway_altitude() * SG_FEET_TO_METER,
-           cur_fdm_state->get_Altitude() * SG_FEET_TO_METER); */
-
-    // cout << "Warp = " << globals->get_warp() << endl;
-
     // update "time"
     static bool last_clock_freeze = false;
 
@@ -410,12 +307,6 @@ static void fgMainLoop( void ) {
                                 altitude->getDoubleValue() * SG_FEET_TO_METER,
                                 globals->get_time_params()->getJD() );
 
-    // Get elapsed time (in usec) for this past frame
-    elapsed = fgGetTimeInterval();
-    SG_LOG( SG_ALL, SG_DEBUG,
-            "Elapsed time interval is = " << elapsed
-            << ", previous remainder is = " << remainder );
-
     // Calculate frame rate average
 #ifdef FANCY_FRAME_COUNTER
     /* old fps calculation */
@@ -440,7 +331,7 @@ static void fgMainLoop( void ) {
         general.set_frame_rate( frames );
         fgSetInt("/sim/frame-rate", frames);
         SG_LOG( SG_ALL, SG_DEBUG,
-            "--> Frame rate is = " << general.get_frame_rate() );
+                "--> Frame rate is = " << general.get_frame_rate() );
         frames = 0;
     }
     last_time = t->get_cur_time();
@@ -451,168 +342,146 @@ static void fgMainLoop( void ) {
     // implementation is an AI model and depends on that
     globals->get_multiplayer_mgr()->Update();
 
+#if ENABLE_ATCDCL
     // Run ATC subsystem
     if (fgGetBool("/sim/atc/enabled"))
         globals->get_ATC_mgr()->update(delta_time_sec);
 
+
     // Run the AI subsystem
-    // FIXME: run that also if we have multiplaying enabled since the
-    // multiplayer information is interpreted by an AI model
+    // NOTE: the AI_mgr has nothing to do with the AIModels subsystem.
+    // There was previously a comment here stating that the
+    // AI_mgr code should be run then multiplayer is enabled.
+    // Multiplayer relies on AIModels, and not on the old and
+    // depricated AI_mgr system. So, we can safely skip the following
+    // two lines at compile time when compiling with --disable-atcdcl
     if (fgGetBool("/sim/ai-traffic/enabled"))
         globals->get_AI_mgr()->update(delta_time_sec);
-
-    // Run flight model
-
-    // Calculate model iterations needed for next frame
-    elapsed += remainder;
-
-    global_multi_loop = (long)(((double)elapsed * 0.000001) * model_hz );
-    remainder = elapsed - ( (global_multi_loop*1000000) / model_hz );
-    SG_LOG( SG_ALL, SG_DEBUG,
-            "Model iterations needed = " << global_multi_loop
-            << ", new remainder = " << remainder );
-
-    // chop max iterations to something reasonable if the sim was
-    // delayed for an excessive amount of time
-    if ( global_multi_loop > 2.0 * model_hz ) {
-        global_multi_loop = (int)(2.0 * model_hz );
-        remainder = 0;
-    }
-
-    // flight model
-    if ( global_multi_loop > 0) {
-        // first run the flight model each frame until it is initialized
-        // then continue running each frame only after initial scenery load is complete.
-        fgUpdateTimeDepCalcs();
-    } else {
-        SG_LOG( SG_ALL, SG_DEBUG,
-            "Elapsed time is zero ... we're zinging" );
-    }
-
-    // Do any I/O channel work that might need to be done
-    globals->get_io()->update( real_delta_time_sec );
-
-    // see if we need to load any deferred-load textures
-    globals->get_matlib()->load_next_deferred();
-
-    // Run audio scheduler
-#ifdef ENABLE_AUDIO_SUPPORT
-    if ( globals->get_soundmgr()->is_working() ) {
-        globals->get_soundmgr()->update( delta_time_sec );
-    }
-#endif
-
+#endif  
+    
     globals->get_subsystem_mgr()->update(delta_time_sec);
-
+    globals->get_aircraft_model()->update(delta_time_sec);
+    
     //
     // Tile Manager updates - see if we need to load any new scenery tiles.
     //   this code ties together the fdm, viewer and scenery classes...
     //   we may want to move this to its own class at some point
     //
     double visibility_meters = fgGetDouble("/environment/visibility-m");
-    FGViewer *current_view = globals->get_current_view();
-
     globals->get_tile_mgr()->prep_ssg_nodes( visibility_meters );
+
     // update tile manager for view...
-    SGLocation *view_location = globals->get_current_view()->getSGLocation();
-    globals->get_tile_mgr()->update( view_location, visibility_meters );
-    {
-        double lon = view_location->getLongitude_deg();
-        double lat = view_location->getLatitude_deg();
-        double alt = view_location->getAltitudeASL_ft() * SG_FEET_TO_METER;
-
-        // check if we can reuse the groundcache for that purpose.
-        double ref_time, r;
-        SGVec3d pt;
-        bool valid = cur_fdm_state->is_valid_m(&ref_time, pt.sg(), &r);
-        SGVec3d viewpos(globals->get_current_view()->get_view_pos());
-        if (valid && distSqr(viewpos, pt) < r*r) {
-            // Reuse the cache ...
-            double lev
-                = cur_fdm_state->get_groundlevel_m(lat*SGD_DEGREES_TO_RADIANS,
-                                                   lon*SGD_DEGREES_TO_RADIANS,
-                                                   alt + 2.0);
-            view_location->set_cur_elev_m( lev );
-        } else {
-            // Do full intersection test.
-            double lev;
-            if (globals->get_scenery()->get_elevation_m(lat, lon, alt+2, lev, 0))
-                view_location->set_cur_elev_m( lev );
-            else
-                view_location->set_cur_elev_m( -9999.0 );
-        }
-    }
+    SGVec3d viewPos = globals->get_current_view()->get_view_pos();
+    SGGeod geodViewPos = SGGeod::fromCart(viewPos);
+    globals->get_tile_mgr()->update(geodViewPos, visibility_meters);
 
+    // run Nasal's settimer() loops right before the view manager
+    globals->get_event_mgr()->update(delta_time_sec);
+
+    // pick up model coordidnates that Nasal code may have set relative to the
+    // aircraft's
+    globals->get_model_mgr()->update(delta_time_sec);
+
+    // update the view angle as late as possible, but before sound calculations
+    globals->get_viewmgr()->update(real_delta_time_sec);
+
+    // Update the sound manager last so it can use the CPU while the GPU
+    // is processing the scenery (doubled the frame-rate for me) -EMH-
 #ifdef ENABLE_AUDIO_SUPPORT
-    // Right now we make a simplifying assumption that the primary
-    // aircraft is the source of all sounds and that all sounds are
-    // positioned relative to the current view position.
-
-    static sgVec3 last_pos_offset;
-
-    // get the location data for the primary FDM (now hardcoded to ac model)...
-    SGLocation *acmodel_loc = NULL;
-    acmodel_loc = (SGLocation *)globals->
-        get_aircraft_model()->get3DModel()->getSGLocation();
-
-    // set positional offset for sources
-    sgdVec3 dsource_pos_offset;
-    sgdSubVec3( dsource_pos_offset,
-                view_location->get_absolute_view_pos(),
-                acmodel_loc->get_absolute_view_pos() );
-    // cout << "pos all = " << source_pos_offset[0] << " " << source_pos_offset[1] << " " << source_pos_offset[2] << endl;
-    sgVec3 source_pos_offset;
-    sgSetVec3(source_pos_offset, dsource_pos_offset);
-    globals->get_soundmgr()->set_source_pos_all( source_pos_offset );
-
-    // set the velocity
-    sgVec3 source_vel;
-    sgSubVec3( source_vel, source_pos_offset, last_pos_offset );
-    sgScaleVec3( source_vel, delta_time_sec );
-    sgCopyVec3( last_pos_offset, source_pos_offset );
-    // cout << "vel = " << source_vel[0] << " " << source_vel[1] << " " << source_vel[2] << endl;
-    globals->get_soundmgr()->set_source_vel_all( source_vel );
-
-    // Right now we make a simplifying assumption that the listener is
-    // always positioned at the origin.
-    sgVec3 listener_pos;
-    sgSetVec3( listener_pos, 0.0, 0.0, 0.0 );
-    // cout << "listener = " << listener_pos[0] << " " << listener_pos[1] << " " << listener_pos[2] << endl;
-    globals->get_soundmgr()->set_listener_pos( listener_pos );
+    static bool smgr_init = true;
+    static SGPropertyNode *sound_working = fgGetNode("/sim/sound/working");
+    if (smgr_init == true) {
+        if (sound_working->getBoolValue() == true) {
+            fgInitSoundManager();
+            smgr_init = false;
+        }
+    } else {
+        static SGPropertyNode *sound_enabled = fgGetNode("/sim/sound/enabled");
+        static SGSoundMgr *smgr = globals->get_soundmgr();
+        static bool smgr_enabled = true;
+
+        if (sound_working->getBoolValue() == false) {	// request to reinit
+           smgr->reinit();
+           smgr->resume();
+           sound_working->setBoolValue(true);
+        }
+
+        if (smgr_enabled != sound_enabled->getBoolValue()) {
+            if (smgr_enabled == true) { // request to suspend
+                smgr->suspend();
+                smgr_enabled = false;
+            } else {
+                smgr->resume();
+                smgr_enabled = true;
+            }
+        }
+
+        if (smgr_enabled == true) {
+            static SGPropertyNode *volume = fgGetNode("/sim/sound/volume");
+            smgr->set_volume(volume->getFloatValue());
+            smgr->update(delta_time_sec);
+        }
+    }
 #endif
 
     // END Tile Manager udpates
 
-    if (!scenery_loaded && globals->get_tile_mgr()->all_queues_empty() && cur_fdm_state->get_inited()) {
+    if (!scenery_loaded && globals->get_tile_mgr()->isSceneryLoaded()
+        && fgGetBool("sim/fdm-initialized")) {
         fgSetBool("sim/sceneryloaded",true);
-        fgSetFloat("/sim/sound/volume", init_volume);
-        globals->get_soundmgr()->set_volume(init_volume);
+        if (fgGetBool("/sim/sound/working")) {
+            globals->get_soundmgr()->activate();
+        }
+        globals->get_props()->tie("/sim/sound/devices/name",
+              SGRawValueFunctions<const char *>(0, fgSetNewSoundDevice), false);
     }
-
+    simgear::AtomicChangeListener::fireChangeListeners();
     fgRequestRedraw();
 
     SG_LOG( SG_ALL, SG_DEBUG, "" );
 }
 
+void fgInitSoundManager()
+{
+    SGSoundMgr *smgr = globals->get_soundmgr();
 
-// This is the top level master main function that is registered as
-// our idle funciton
+    smgr->bind();
+    smgr->init(fgGetString("/sim/sound/device-name", NULL));
 
-// The first few passes take care of initialization things (a couple
-// per pass) and once everything has been initialized fgMainLoop from
-// then on.
+    vector <const char*>devices = smgr->get_available_devices();
+    for (unsigned int i=0; i<devices.size(); i++) {
+        SGPropertyNode *p = fgGetNode("/sim/sound/devices/device", i, true);
+        p->setStringValue(devices[i]);
+    }
+    devices.clear();
+}
 
-static void fgIdleFunction ( void ) {
-    if ( idle_state == 0 ) {
-        idle_state++;
+void fgSetNewSoundDevice(const char *device)
+{
+    globals->get_soundmgr()->suspend();
+    globals->get_soundmgr()->stop();
+    globals->get_soundmgr()->init(device);
+    globals->get_soundmgr()->resume();
+}
 
-        // This seems to be the absolute earliest in the init sequence
-        // that these calls will return valid info.  Too bad it's after
-        // we've already created and sized our window. :-(
+// Operation for querying OpenGL parameters. This must be done in a
+// valid OpenGL context, potentially in another thread.
+namespace
+{
+struct GeneralInitOperation : public GraphicsContextOperation
+{
+    GeneralInitOperation()
+        : GraphicsContextOperation(std::string("General init"))
+    {
+    }
+    void run(osg::GraphicsContext* gc)
+    {
         general.set_glVendor( (char *)glGetString ( GL_VENDOR ) );
         general.set_glRenderer( (char *)glGetString ( GL_RENDERER ) );
         general.set_glVersion( (char *)glGetString ( GL_VERSION ) );
+        SG_LOG( SG_GENERAL, SG_INFO, general.get_glVendor() );
         SG_LOG( SG_GENERAL, SG_INFO, general.get_glRenderer() );
+        SG_LOG( SG_GENERAL, SG_INFO, general.get_glVersion() );
 
         GLint tmp;
         glGetIntegerv( GL_MAX_TEXTURE_SIZE, &tmp );
@@ -622,37 +491,51 @@ static void fgIdleFunction ( void ) {
         glGetIntegerv( GL_DEPTH_BITS, &tmp );
         general.set_glDepthBits( tmp );
         SG_LOG ( SG_GENERAL, SG_INFO, "Depth buffer bits = " << tmp );
+    }
+};
+}
 
-        // Initialize the user interface so that we can use fonts
-        guiInit();
+// This is the top level master main function that is registered as
+// our idle funciton
 
+// The first few passes take care of initialization things (a couple
+// per pass) and once everything has been initialized fgMainLoop from
+// then on.
 
+static void fgIdleFunction ( void ) {
+    static osg::ref_ptr<GeneralInitOperation> genOp;
+    if ( idle_state == 0 ) {
+        idle_state++;
+        // Pick some window on which to do queries.
+        // XXX Perhaps all this graphics initialization code should be
+        // moved to renderer.cxx?
+        genOp = new GeneralInitOperation;
+        osg::Camera* guiCamera = getGUICamera(CameraGroup::getDefault());
+        WindowSystemAdapter* wsa = WindowSystemAdapter::getWSA();
+        osg::GraphicsContext* gc = 0;
+        if (guiCamera)
+            gc = guiCamera->getGraphicsContext();
+        if (gc) {
+            gc->add(genOp.get());
+        } else {
+            wsa->windows[0]->gc->add(genOp.get());
+        }
+        guiStartInit(gc);
     } else if ( idle_state == 1 ) {
+        if (genOp.valid()) {
+            if (!genOp->isFinished())
+                return;
+            genOp = 0;
+        }
+        if (!guiFinishInit())
+            return;
         idle_state++;
         fgSplashProgress("reading aircraft list");
 
 
     } else if ( idle_state == 2 ) {
         idle_state++;
-        // Read the list of available aircraft
-        fgReadAircraft();
-
-        // get the address of our OpenGL extensions
-//         if (SGIsOpenGLExtensionSupported("GL_EXT_point_parameters") ) {
-//             glPointParameterIsSupported = true;
-//             glPointParameterfPtr = (glPointParameterfProc)
-//                 SGLookupFunction("glPointParameterfEXT");
-//             glPointParameterfvPtr = (glPointParameterfvProc)
-//                 SGLookupFunction("glPointParameterfvEXT");
-//         } else if ( SGIsOpenGLExtensionSupported("GL_ARB_point_parameters") ) {
-//             glPointParameterIsSupported = true;
-//             glPointParameterfPtr = (glPointParameterfProc)
-//                 SGLookupFunction("glPointParameterfARB");
-//             glPointParameterfvPtr = (glPointParameterfvProc)
-//                 SGLookupFunction("glPointParameterfvARB");
-//         } else {
-//             glPointParameterIsSupported = false;
-//         }
+                
         fgSplashProgress("reading airport & navigation data");
 
 
@@ -689,7 +572,7 @@ static void fgIdleFunction ( void ) {
         // Initialize the material manager
         ////////////////////////////////////////////////////////////////////
         globals->set_matlib( new SGMaterialLib );
-        globals->set_model_lib(new SGModelLib);
+        simgear::SGModelLib::init(globals->get_fg_root());
 
 
         ////////////////////////////////////////////////////////////////////
@@ -712,13 +595,16 @@ static void fgIdleFunction ( void ) {
 
     } else if ( idle_state == 5 ) {
         idle_state++;
+
         ////////////////////////////////////////////////////////////////////
         // Initialize the 3D aircraft model subsystem (has a dependency on
         // the scenery subsystem.)
         ////////////////////////////////////////////////////////////////////
-        globals->set_aircraft_model(new FGAircraftModel);
-        globals->get_aircraft_model()->init();
-        globals->get_aircraft_model()->bind();
+        FGAircraftModel* acm = new FGAircraftModel;
+        globals->set_aircraft_model(acm);
+        //globals->add_subsystem("aircraft-model", acm);
+        acm->init();
+        acm->bind();
 
         ////////////////////////////////////////////////////////////////////
         // Initialize the view manager subsystem.
@@ -733,13 +619,11 @@ static void fgIdleFunction ( void ) {
     } else if ( idle_state == 6 ) {
         idle_state++;
         // Initialize the sky
-        SGPath ephem_data_path( globals->get_fg_root() );
-        ephem_data_path.append( "Astro" );
-        SGEphemeris *ephem = new SGEphemeris( ephem_data_path.c_str() );
-        ephem->update( globals->get_time_params()->getMjd(),
-                       globals->get_time_params()->getLst(),
-                       0.0 );
-        globals->set_ephem( ephem );
+
+        Ephemeris* eph = new Ephemeris;
+        globals->add_subsystem("ephmeris", eph);
+        eph->init(); // FIXME - remove this once SGSky code below is also a subsystem
+        eph->bind();
 
         // TODO: move to environment mgr
         thesky = new SGSky;
@@ -763,10 +647,7 @@ static void fgIdleFunction ( void ) {
         // Sun diameter: 1,390,000 kilometers
         thesky->build( 80000.0, 80000.0,
                        463.3, 361.8,
-                       globals->get_ephem()->getNumPlanets(),
-                       globals->get_ephem()->getPlanets(),
-                       globals->get_ephem()->getNumStars(),
-                       globals->get_ephem()->getStars(),
+                       *globals->get_ephem(),
                        fgGetNode("/environment", true));
 
         // Initialize MagVar model
@@ -811,27 +692,17 @@ static void fgIdleFunction ( void ) {
             SG_LOG( SG_GENERAL, SG_INFO,
                 "Starting intro music: " << mp3file.str() );
 
-#if defined( __CYGWIN__ )
+# if defined( __CYGWIN__ )
             string command = "start /m `cygpath -w " + mp3file.str() + "`";
-#elif defined( WIN32 )
+# elif defined( _WIN32 )
             string command = "start /m " + mp3file.str();
-#else
+# else
             string command = "mpg123 " + mp3file.str() + "> /dev/null 2>&1";
-#endif
+# endif
 
             system ( command.c_str() );
         }
 #endif
-
-        // These are a few miscellaneous things that aren't really
-        // "subsystems" but still need to be initialized.
-
-#ifdef USE_GLIDE
-        if ( strstr ( general.get_glRenderer(), "Glide" ) ) {
-            grTexLodBiasValue ( GR_TMU0, 1.0 ) ;
-        }
-#endif
-
         // This is the top level init routine which calls all the
         // other subsystem initialization routines.  If you are adding
         // a subsystem to flightgear, its initialization call should be
@@ -853,12 +724,13 @@ static void fgIdleFunction ( void ) {
         // setup OpenGL view parameters
         globals->get_renderer()->init();
 
-        SG_LOG( SG_GENERAL, SG_INFO, "Panel visible = " << fgPanelVisible() );
         globals->get_renderer()->resize( fgGetInt("/sim/startup/xsize"),
                                          fgGetInt("/sim/startup/ysize") );
 
         fgSplashProgress("loading scenery objects");
-
+        int session = fgGetInt("/sim/session",0);
+        session++;
+        fgSetInt("/sim/session",session);
     }
 
     if ( idle_state == 1000 ) {
@@ -872,16 +744,17 @@ static void fgIdleFunction ( void ) {
 
 static void upper_case_property(const char *name)
 {
+    using namespace simgear;
     SGPropertyNode *p = fgGetNode(name, false);
     if (!p) {
         p = fgGetNode(name, true);
         p->setStringValue("");
     } else {
-        SGPropertyNode::Type t = p->getType();
-        if (t == SGPropertyNode::NONE || t == SGPropertyNode::UNSPECIFIED)
+        props::Type t = p->getType();
+        if (t == props::NONE || t == props::UNSPECIFIED)
             p->setStringValue("");
         else
-            assert(t == SGPropertyNode::STRING);
+            assert(t == props::STRING);
     }
     p->addChangeListener(new FGMakeUpperCase);
 }
@@ -890,12 +763,6 @@ static void upper_case_property(const char *name)
 // Main top level initialization
 bool fgMainInit( int argc, char **argv ) {
 
-#if defined( macintosh )
-    freopen ("stdout.txt", "w", stdout );
-    freopen ("stderr.txt", "w", stderr );
-    argc = ccommand( &argv );
-#endif
-
     // set default log levels
     sglog().setLogLevels( SG_ALL, SG_ALERT );
 
@@ -923,16 +790,18 @@ bool fgMainInit( int argc, char **argv ) {
     string_list *col = new string_list;
     globals->set_channel_options_list( col );
 
+    fgValidatePath("", false);  // initialize static variables
     upper_case_property("/sim/presets/airport-id");
     upper_case_property("/sim/presets/runway");
     upper_case_property("/sim/tower/airport-id");
+    upper_case_property("/autopilot/route-manager/input");
 
     // Scan the config file(s) and command line options to see if
     // fg_root was specified (ignore all other options for now)
     fgInitFGRoot(argc, argv);
 
     // Check for the correct base package version
-    static char required_version[] = "0.9.11";
+    static char required_version[] = "2.0.0";
     string base_version = fgBasePackageVersion();
     if ( !(base_version == required_version) ) {
         // tell the operator how to use this application
@@ -958,35 +827,18 @@ bool fgMainInit( int argc, char **argv ) {
     }
 
     // Initialize the Window/Graphics environment.
-#if !defined(__APPLE__) || defined(OSX_BUNDLE)
-    // Mac OS X command line ("non-bundle") applications call this
-    // from main(), in bootstrap.cxx.  Andy doesn't know why, someone
-    // feel free to add comments...
     fgOSInit(&argc, argv);
     _bootstrap_OSInit++;
-#endif
 
     fgRegisterWindowResizeHandler( &FGRenderer::resize );
     fgRegisterIdleHandler( &fgIdleFunction );
     fgRegisterDrawHandler( &FGRenderer::update );
 
-#ifdef FG_ENABLE_MULTIPASS_CLOUDS
-    bool get_stencil_buffer = true;
-#else
-    bool get_stencil_buffer = false;
-#endif
-
     // Initialize plib net interface
     netInit( &argc, argv );
 
     // Clouds3D requires an alpha channel
-    // clouds may require stencil buffer
-    fgOSOpenWindow( fgGetInt("/sim/startup/xsize"),
-                    fgGetInt("/sim/startup/ysize"),
-                    fgGetInt("/sim/rendering/bits-per-pixel"),
-                    fgGetBool("/sim/rendering/clouds3d-enable"),
-                    get_stencil_buffer,
-                    fgGetBool("/sim/startup/fullscreen") );
+    fgOSOpenWindow(true /* request stencil buffer */);
 
     // Initialize the splash screen right away
     fntInit();