Major overhaul:

[flightgear.git] / src / Sound / soundmgr.cxx

diff --git a/src/Sound/soundmgr.cxx b/src/Sound/soundmgr.cxx
index aa4b6f4f0d8c4acc846c2006850dfa164823e2f8..2b7e25576c4dee1eb1686c4fe3eb14c3d7f2cfad 100644 (file)
--- a/src/Sound/soundmgr.cxx
+++ b/src/Sound/soundmgr.cxx
@@ -34,8 +34,15 @@
 #define FG_SOUND_SAFETY_MULT 3
 #define FG_MAX_SOUND_SAFETY ( 1.0 / FG_SOUND_SAFETY_MULT )
 
+//
+// SimpleSound
+//
+
 // constructor
-FGSimpleSound::FGSimpleSound( string file ) {
+FGSimpleSound::FGSimpleSound( string file )
+  : pitch(1.0),
+    volume(1.0)
+{
     SGPath slfile( globals->get_fg_root() );
     slfile.append( file );
     sample = new slSample ( (char *)slfile.c_str() );
@@ -45,7 +52,10 @@ FGSimpleSound::FGSimpleSound( string file ) {
     volume_envelope->setStep ( 0, 0.01, 1.0 );
 }
 
-FGSimpleSound::FGSimpleSound( unsigned char *buffer, int len ) {
+FGSimpleSound::FGSimpleSound( unsigned char *buffer, int len )
+  : pitch(1.0),
+    volume(1.0)
+{
     sample = new slSample ( buffer, len );
     pitch_envelope = new slEnvelope( 1, SL_SAMPLE_ONE_SHOT );
     volume_envelope = new slEnvelope( 1, SL_SAMPLE_ONE_SHOT );
@@ -60,6 +70,32 @@ FGSimpleSound::~FGSimpleSound() {
     delete sample;
 }
 
+void FGSimpleSound::play( slScheduler *sched, bool looped ) {
+    
+    // make sure sound isn't already playing
+    if ( sample->getPlayCount() > 0 ) {
+       sched->stopSample(sample);
+    //   return;
+    }
+
+    if ( looped ) {
+        sched->loopSample(sample);
+    } else {
+        sched->playSample(sample);
+    }
+    
+    sched->addSampleEnvelope(sample, 0, 0, pitch_envelope, SL_PITCH_ENVELOPE);
+    sched->addSampleEnvelope(sample, 0, 1, volume_envelope, SL_VOLUME_ENVELOPE);
+}
+
+void FGSimpleSound::stop( slScheduler *sched, bool quick ) {
+
+    sched->stopSample( sample );
+}
+
+//
+// Sound Manager
+//
 
 // constructor
 FGSoundMgr::FGSoundMgr() {
@@ -155,7 +191,8 @@ void FGSoundMgr::unbind ()
 
 
 // run the audio scheduler
-void FGSoundMgr::update(int dt) {
+void FGSoundMgr::update(double dt) {
+                               // FIXME: use dt supplied (seconds)
     SGTimeStamp current;
     current.stamp();
 
@@ -178,12 +215,35 @@ void FGSoundMgr::update(int dt) {
 }
 
 
+void
+FGSoundMgr::pause ()
+{
+  audio_sched->pauseSample(0, 0);
+}
+
+
+void
+FGSoundMgr::resume ()
+{
+  audio_sched->resumeSample(0, 0);
+}
+
+
 // add a sound effect, return true if successful
 bool FGSoundMgr::add( FGSimpleSound *sound, const string& refname ) {
 
-    sample_map_iterator it = samples.find(refname);
-    if (it != samples.end())
-       return false;
+    sound_map_iterator sound_it = sounds.find( refname );
+    if ( sound_it != sounds.end() ) {
+        // sound already exists
+        return false;
+    }
+
+    sample_map_iterator sample_it = samples.find( refname );
+    if ( sample_it != samples.end() ) {
+        // this sound has existed in the past and it's sample is still
+        // here, delete the sample so we can replace it.
+        samples.erase( sample_it );
+    }
 
     sample_ref *sr = new sample_ref;
 
@@ -196,11 +256,12 @@ bool FGSoundMgr::add( FGSimpleSound *sound, const string& refname ) {
     return true;
 }
 
+
 // add a sound from a file, return the sample if successful, else return NULL
 FGSimpleSound *FGSoundMgr::add( const string& refname, const string &file ) {
      FGSimpleSound *sound;
 
-    if (file == (string)"")
+    if (file.empty())
        return NULL;
 
     sample_map_iterator it = samples.find(file);
@@ -227,6 +288,7 @@ FGSimpleSound *FGSoundMgr::add( const string& refname, const string &file ) {
     return sound;
 }
 
+
 // remove a sound effect, return true if successful
 bool FGSoundMgr::remove( const string& refname ) {
 
@@ -261,9 +323,11 @@ bool FGSoundMgr::remove( const string& refname ) {
        // delete sample;
         sounds.erase( it );
 
+        // cout << "sndmgr: removed -> " << refname << endl;
        return true;
-   } else {
-       return false;
+    } else {
+        // cout << "sndmgr: failed remove -> " << refname << endl;
+        return false;
     }
 }
 
@@ -285,7 +349,7 @@ FGSimpleSound *FGSoundMgr::find( const string& refname ) {
     sound_map_iterator it = sounds.find( refname );
     if ( it != sounds.end() ) {
        return it->second;
-   } else {
+    } else {
        return NULL;
     }
 }
@@ -294,66 +358,46 @@ FGSimpleSound *FGSoundMgr::find( const string& refname ) {
 // tell the scheduler to play the indexed sample in a continuous
 // loop
 bool FGSoundMgr::play_looped( const string& refname ) {
-    sound_map_iterator it = sounds.find( refname );
-    if ( it != sounds.end() ) {
-       FGSimpleSound *sample = it->second;
-       audio_sched->loopSample( sample->get_sample() );
-       audio_sched->addSampleEnvelope( sample->get_sample(), 0, 0, 
-                                       sample->get_pitch_envelope(),
-                                       SL_PITCH_ENVELOPE );
-       audio_sched->addSampleEnvelope( sample->get_sample(), 0, 1, 
-                                       sample->get_volume_envelope(),
-                                       SL_VOLUME_ENVELOPE );
-       
-       return true;
-    } else {
-       return false;
-    }
+   FGSimpleSound *sample;
+
+    if ((sample = find( refname )) == NULL)
+       return false;
+
+    sample->play(audio_sched, true);
+    return true;
 }
 
 
 // tell the scheduler to play the indexed sample once
 bool FGSoundMgr::play_once( const string& refname ) {
-    sound_map_iterator it = sounds.find( refname );
-    if ( it != sounds.end() ) {
-       FGSimpleSound *sample = it->second;
-       audio_sched->stopSample( sample->get_sample() );
-       audio_sched->playSample( sample->get_sample() );
-       audio_sched->addSampleEnvelope( sample->get_sample(), 0, 0, 
-                                       sample->get_pitch_envelope(),
-                                       SL_PITCH_ENVELOPE );
-       audio_sched->addSampleEnvelope( sample->get_sample(), 0, 1, 
-                                       sample->get_volume_envelope(),
-                                       SL_VOLUME_ENVELOPE );
-       
-       return true;
-    } else {
-       return false;
-    }
+    FGSimpleSound *sample;
+
+    if ((sample = find( refname )) == NULL)
+       return false;
+
+    sample->play(audio_sched, false);
+    return true;
 }
 
 
 // return true of the specified sound is currently being played
 bool FGSoundMgr::is_playing( const string& refname ) {
-    sound_map_iterator it = sounds.find( refname );
-    if ( it != sounds.end() ) {
-       FGSimpleSound *sample = it->second;
-       return (sample->get_sample()->getPlayCount() > 0 );
-       return true;
-    } else {
-       return false;
-    }
+    FGSimpleSound *sample;
+
+    if ((sample = find( refname )) == NULL)
+       return false;
+
+    return (sample->get_sample()->getPlayCount() > 0 );
 }
 
 
 // immediate stop playing the sound
 bool FGSoundMgr::stop( const string& refname ) {
-    sound_map_iterator it = sounds.find( refname );
-    if ( it != sounds.end() ) {
-       FGSimpleSound *sample = it->second;
-       audio_sched->stopSample( sample->get_sample() );
-       return true;
-    } else {
-       return false;
-    }
+    FGSimpleSound *sample;
+
+    if ((sample = find( refname )) == NULL)
+       return false;
+
+    audio_sched->stopSample( sample->get_sample() );
+    return true;
 }