Changeset 5917 in orxonox.OLD for trunk/src/lib/sound

Timestamp:

Dec 4, 2005, 9:27:18 PM (19 years ago)

Author:

bensch

Message:

orxonox/trunk: al-sound-source-allocation

Location:

trunk/src/lib/sound

Files:

• sound_engine.cc (modified) (1 diff)
• sound_engine.h (modified) (4 diffs)
• sound_source.cc (modified) (1 diff)
• sound_source.h (modified) (1 diff)

trunk/src/lib/sound/sound_engine.cc

@@ -305 +305 @@
 }
 
+
+/**
+ * Allocates openAL sources
+ * @param count how many sources to allocate
+ * @returns true on success, false if at least one source could not be allocated
+ */
+bool SoundEngine::allocateSources(unsigned int count)
+{
+  ALuint* sourceList = new ALuint[count];
+  ALenum result;
+
+  alGenSources(count, sourceList);
+  if ((result = alGetError()) != AL_NO_ERROR)
+  {
+    SoundEngine::PrintALErrorString(result);
+    return false;
+  }
+
+  /// @TODO check syntax
+
+
+  // Setting default values.
+  for (int i = 0; i < count; i++)
+  {
+    alSourcef (sourceList[i], AL_PITCH,    1.0      );
+    alSourcef (sourceList[i], AL_GAIN,     this->getEffectsVolume() );
+    alSourcei (sourceList[i], AL_LOOPING,  AL_FALSE );
+    this->ALSources.push(sourceList[i]);
+  }
+  return true;
+}
+
 /**
  *  Transforms AL-errors into something readable

trunk/src/lib/sound/sound_engine.h

@@ -14 +14 @@
 
 #include <list>
+#include <stack>
 
 #define SOUND_DOPPLER_FACTOR       0.001          //!< A factor for the audible doppler effect
@@ -21 +22 @@
 class PNode;
 class IniParser;
+
 
 //! A class that handles audio via the openAudioLibrary
@@ -54 +56 @@
     void flushAllBuffers();
     void flushAllSources();
+
+    bool allocateSources(unsigned int count);
     bool initAudio();
 
@@ -78 +82 @@
     const std::list<BaseObject*>*  sourceList;               //!< A list for all the sources in the scene.
 
-
+    unsigned int                   maxSourceCount;           //!< How many Sources is the Maximum
+    std::stack<ALuint>             ALSources;                //!< A list of real openAL-Sources, the engine allocates, and stores for reuse.
 };
 

trunk/src/lib/sound/sound_source.cc

@@ -18 +18 @@
 #include "sound_source.h"
 #include "sound_engine.h"
+
 #include "alincl.h"
 #include "compiler.h"

trunk/src/lib/sound/sound_source.h

@@ -39 +39 @@
 
   private:
+    bool                   bPlay;                 //!< If the Source is Playing.
     ALuint                 sourceID;              //!< The ID of the Source
     const SoundBuffer*     buffer;                //!< The buffer to play in this source.