Changeset 7317 in orxonox.OLD for trunk/src/lib/sound/sound_source.cc

Timestamp:

Apr 17, 2006, 2:25:27 AM (18 years ago)

Author:

bensch

Message:

orxonox/trunk: retrieve Source is better now (more modular)

File:

• trunk/src/lib/sound/sound_source.cc (modified) (13 diffs)

trunk/src/lib/sound/sound_source.cc

@@ -34 +34 @@
   this->buffer = buffer;
   this->sourceNode = sourceNode;
+  this->resident = false;
 
   this->sourceID = 0;
   this->bPlay = false;
 }
+
 
 /**
@@ -53 +55 @@
   this->buffer = source.buffer;
   this->sourceNode = source.sourceNode;
+  this->resident = source.resident;
 
   this->sourceID = 0;
@@ -63 +66 @@
     this->bPlay = false;
 }
+
 
 /**
@@ -74 +78 @@
   this->buffer = source.buffer;
   this->sourceNode = sourceNode;
+  this->resident = source.resident;
 
   if (source.bPlay)
@@ -81 +86 @@
 }
 
+
 /**
  * @brief compares two Sources with each other.
@@ -94 +100 @@
 }
 
+
 /**
  * @brief deletes a SoundSource
@@ -100 +107 @@
 {
   this->stop();
-}
+  if (this->sourceID != 0)
+    SoundEngine::getInstance()->pushALSource(this->sourceID);
+}
+
 
 /**
@@ -107 +117 @@
 void SoundSource::play()
 {
-  if (this->sourceID == 0)
-    SoundEngine::getInstance()->popALSource(this->sourceID);
-  alSourcePlay(this->sourceID);
-  if (DEBUG >= 3)
-    SoundEngine::checkError("Play Source", __LINE__);
-  this->bPlay = true;
-}
-
-/**
- * Plays back buffer on this Source
+  if (this->retrieveSource())
+  {
+    alSourcePlay(this->sourceID);
+    if (DEBUG >= 3)
+      SoundEngine::checkError("Play Source", __LINE__);
+    this->bPlay = true;
+  }
+}
+
+
+/**
+ * @brief Plays back buffer on this Source
  * @param buffer the buffer to play back on this Source
  */
 void SoundSource::play(const SoundBuffer* buffer)
 {
-  if (unlikely(this->sourceID == 0))
-  {
-    SoundEngine::getInstance()->popALSource(this->sourceID);
-    if (sourceID == 0)
-    {
-      PRINTF(2)("No more Free source\n");
-      return;
-    }
-  }
-  //  assert (this->sourceID != 0);
+  if (!this->retrieveSource())
+  {
+    PRINTF(2)("No more Free sources (You might consider raising the Source-Count).\n");
+    return;
+  }
 
   alSourceStop(this->sourceID);
@@ -143 +150 @@
     SoundEngine::checkError("Play Source", __LINE__);
 }
+
 
 /**
@@ -156 +164 @@
       SoundEngine::checkError("StopSource", __LINE__);
     alSourcei(this->sourceID, AL_BUFFER, 0);
-    SoundEngine::getInstance()->pushALSource(this->sourceID);
+    if (!this->resident)
+      SoundEngine::getInstance()->pushALSource(this->sourceID);
     this->sourceID = 0;
   }
 }
 
+
 /**
  * @brief Pauses Playback of a SoundSource
@@ -171 +181 @@
 }
 
+
 /**
  * @brief Rewinds Playback of a SoundSource
@@ -181 +192 @@
     SoundEngine::checkError("Rewind Source", __LINE__);
 }
+
 
 /**
@@ -196 +208 @@
 }
 
+
+/**
+ * @brief sets the Positional this Source should be attached to.
+ * @param sourceNode the Source this is attached to.
+ * If sourceNode == NULL then the Source will be centered, and Audio will be played on all channels.
+ */
+void SoundSource::setSourceNode(const PNode* sourceNode)
+{
+  this->sourceNode = sourceNode;
+}
+
+/**
+ * @brief retrieve a Source.
+ */
+bool SoundSource::retrieveSource()
+{
+  if (this->sourceID != 0)
+    return true;
+  else
+  {
+    SoundEngine::getInstance()->popALSource(this->sourceID);
+    if (this->sourceID != 0)
+    {
+      if (unlikely(this->sourceNode == NULL))
+        resetSource(this->sourceID);
+      return true;
+    }
+  }
+  return false;
+}
+
+
+/**
+ * @brief reset an alSource to its default Values.
+ */
+void SoundSource::resetSource(ALuint sourceID)
+{
+  alSource3f(sourceID, AL_POSITION,        0.0, 0.0, 0.0);
+  alSource3f(sourceID, AL_VELOCITY,        0.0, 0.0, 0.0);
+  alSource3f(sourceID, AL_DIRECTION,       0.0, 0.0, 0.0);
+  alSourcef (sourceID, AL_ROLLOFF_FACTOR,  0.0          );
+  alSourcei (sourceID, AL_SOURCE_RELATIVE, AL_TRUE      );
+  alSourcef (sourceID, AL_GAIN,            SoundEngine::getInstance()->getEffectsVolume());
+}