Handle looping in sfx thread.

src/audio/dummy_sfx.hpp

@@ -37,6 +37,7 @@ public:
     virtual bool       init() { return true; }
 
     virtual void       setLoop(bool status)             {}
+    virtual void       reallySetLoop(bool status)       {}
     virtual void       setPosition(const Vec3 &p)       {}
     virtual void       reallySetPosition(const Vec3 &p) {}
     virtual void       play()                           {}

src/audio/sfx_base.hpp

@@ -56,6 +56,7 @@ public:
     virtual void       setPosition(const Vec3 &p)       = 0;
     virtual void       reallySetPosition(const Vec3 &p) = 0;
     virtual void       setLoop(bool status)             = 0;
+    virtual void       reallySetLoop(bool status)       = 0;
     virtual bool       isPlaying()                      = 0;
     virtual void       play()                           = 0;
     virtual void       reallyPlayNow()                  = 0;

src/audio/sfx_manager.cpp

@@ -286,6 +286,8 @@ void* SFXManager::mainLoop(void *obj)
                                          current->m_parameter); break;
         case SFX_VOLUME:   current->m_sfx->reallySetVolume(
                                   current->m_parameter.getX()); break;
+        case SFX_LOOP:     current->m_sfx->reallySetLoop(
+                               current->m_parameter.getX()!=0); break;
         case SFX_DELETE:   {
                               current->m_sfx->reallyStopNow();
                               me->deleteSFX(current->m_sfx);    break;

src/audio/sfx_manager.hpp

@@ -70,6 +70,7 @@ public:
         SFX_SPEED,
         SFX_POSITION,
         SFX_VOLUME,
+        SFX_LOOP,
         SFX_LISTENER,
         SFX_UPDATE_MUSIC,
         SFX_EXIT,

src/audio/sfx_openal.cpp

@@ -207,6 +207,14 @@ void SFXOpenAL::setMasterVolume(float gain)
 /** Loops this sound effect.
  */
 void SFXOpenAL::setLoop(bool status)
+{
+    SFXManager::get()->queue(SFXManager::SFX_LOOP, this, status ? 1.0f : 0.0f);
+}   // setLoop
+
+//-----------------------------------------------------------------------------
+/** Loops this sound effect.
+ */
+void SFXOpenAL::reallySetLoop(bool status)
 {
     m_loop = status;
 
@@ -214,7 +222,7 @@ void SFXOpenAL::setLoop(bool status)
 
     alSourcei(m_sound_source, AL_LOOPING, status ? AL_TRUE : AL_FALSE);
     SFXManager::checkError("looping");
-}   // loop
+}   // reallySetLoop
 
 //-----------------------------------------------------------------------------
 /** Queues a stop for this effect to the sound manager.

src/audio/sfx_openal.hpp

@@ -85,6 +85,7 @@ public:
     virtual void      play();
     virtual void      reallyPlayNow();
     virtual void      setLoop(bool status);
+    virtual void      reallySetLoop(bool status);
     virtual bool      isPlaying();
     virtual void      stop();
     virtual void      reallyStopNow();