fix a memory leak and add some temporary debugging statements.

simgear/sound/openal_test1.cxx

@@ -50,6 +50,7 @@ int main( int argc, char *argv[] ) {
     ALCdevice *dev;
     ALCcontext *context;
 
+    alutInit(&argc, argv);
     sglog().setLogLevels( SG_ALL, SG_ALERT );
 
     // initialize OpenAL
@@ -164,6 +165,7 @@ int main( int argc, char *argv[] ) {
     alSourcePlay( source );
 
     sleep(10);
+    alutExit();
 
     return 0;
 }

simgear/sound/sample_group.cxx

@@ -175,8 +175,8 @@ void SGSampleGroup::update( double dt ) {
             if ( !sample->is_playing() ) {
                 // a request to stop playing the sound has been filed.
 
-                sample->no_valid_source();
                 sample->stop();
+                sample->no_valid_source();
                 _smgr->release_source( sample->get_source() );
             } else  {
                 update_sample_config( sample );
@@ -191,9 +191,10 @@ void SGSampleGroup::update( double dt ) {
             alGetSourcei( source, AL_SOURCE_STATE, &result );
             if ( result == AL_STOPPED ) {
                 // sample is stoped because it wasn't looping
-                sample->no_valid_source();
                 sample->stop();
+                sample->no_valid_source();
                 _smgr->release_source( source );
+                _smgr->release_buffer( sample );
             }
         }
         testForALError("update");
@@ -223,7 +224,8 @@ bool SGSampleGroup::remove( const string &refname ) {
         return false;
     }
 
-    _removed_samples.push_back( sample_it->second );
+    if ( sample_it->second->is_valid_buffer() )
+        _removed_samples.push_back( sample_it->second );
     _samples.erase( sample_it );
 
     return true;

simgear/sound/sample_openal.cxx

@@ -183,11 +183,11 @@ void SGSoundSample::set_position( const SGGeod& pos ) {
 void SGSoundSample::update_absolute_position() {
     SGQuatd orient = SGQuatd::fromLonLat(_base_pos) * _orientation;
     _orivec = -toVec3f(orient.rotate(_direction));
-printf("ori: %f %f %f\n", _orivec[0], _orivec[1], _orivec[2]);
+//printf("ori: %f %f %f\n", _orivec[0], _orivec[1], _orivec[2]);
 
     orient = SGQuatd::fromRealImag(0, _relative_pos) * _orientation;
     _absolute_pos = -SGVec3d::fromGeod(_base_pos); // -orient.rotate(SGVec3d::e1());
-printf("pos: %f %f %f\n", _absolute_pos[0], _absolute_pos[1], _absolute_pos[2]);
+//printf("pos: %f %f %f\n", _absolute_pos[0], _absolute_pos[1], _absolute_pos[2]);
 }
 
 string SGSoundSample::random_string() {

simgear/sound/soundmgr_openal.cxx

@@ -94,6 +94,7 @@ SGSoundMgr::~SGSoundMgr() {
 // initialize the sound manager
 void SGSoundMgr::init() {
 
+printf("Initializing OpenAL sound manager\n");
     SG_LOG( SG_GENERAL, SG_INFO, "Initializing OpenAL sound manager" );
 
     ALCdevice *device = alcOpenDevice(_devname);
@@ -114,6 +115,8 @@ void SGSoundMgr::init() {
         return;
     }
 
+    if (_context != NULL)
+        SG_LOG(SG_GENERAL, SG_ALERT, "context is already assigned");
     _context = context;
     _working = true;
 
@@ -171,6 +174,7 @@ void SGSoundMgr::activate() {
 // stop the sound manager
 void SGSoundMgr::stop() {
     if (_working) {
+printf("Stopping Sound Manager\n");
         _working = false;
         _active = false;
 
@@ -193,6 +197,7 @@ void SGSoundMgr::stop() {
 
 void SGSoundMgr::suspend() {
     if (_working) {
+printf("SoundManager suspend\n");
         sample_group_map_iterator sample_grp_current = _sample_groups.begin();
         sample_group_map_iterator sample_grp_end = _sample_groups.end();
         for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
@@ -205,6 +210,7 @@ void SGSoundMgr::suspend() {
 
 void SGSoundMgr::resume() {
     if (_working) {
+printf("SoundManager resume\n");
         sample_group_map_iterator sample_grp_current = _sample_groups.begin();
         sample_group_map_iterator sample_grp_end = _sample_groups.end();
         for ( ; sample_grp_current != sample_grp_end; ++sample_grp_current ) {
@@ -217,6 +223,7 @@ void SGSoundMgr::resume() {
 
 void SGSoundMgr::bind ()
 {
+printf("SoundManager bind\n");
     _free_sources.clear();
     _free_sources.reserve( MAX_SOURCES );
     _sources_in_use.clear();
@@ -226,6 +233,7 @@ void SGSoundMgr::bind ()
 
 void SGSoundMgr::unbind ()
 {
+printf("SoundManager unbind\n");
     _sample_groups.clear();
 
     // delete free sources