AudioSink: Fixe type names ; Enhance AudioFormat negotiation ; ALAudioSink adds AL_SOFT_buffer_samples support w/ full AL caps

- Fixe type names:
  - Remove AudioDataType, we only support PCM here anyways
  - AudioDataFormat -> AudioFormat / Add 'planar' attribute to distingush packed/planar data type
  - Validate float types

- Enhance AudioFormat negotiation
  - Add 'isSupported(AudioFormat format)' which _shall_ be used before 'init(..)'
    to test/negotiate format
  - Add getMaxSupportedChannels(), which may be used w/ getPreferredFormat() if orig requested format fails
    via 'isSupported(..)'
  - 'init(..)' returns boolean only.

- ALAudioSink adds AL_SOFT_buffer_samples support w/ full AL caps
  - Determine whether AL_SOFT_buffer_samples is supported
  - Use new JOAL ALHelper to convert AudioFormat -> AL-types,
    which also answers the 'isSupported(..)' query.
  - Now allows multiple: channles, sample-types, etc.

2 files changed, 28 insertions, 8 deletions

diff --git a/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java b/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
index b1b9c1b6c..85fab96a4 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
@@ -33,7 +33,7 @@ public class JavaSoundAudioSink implements AudioSink {
     private int bufferCount;
     private byte [] sampleData = new byte[BUFFER_SIZE];  
     private boolean initialized = false;
-    private AudioDataFormat chosenFormat = null;
+    private AudioSink.AudioFormat chosenFormat = null;
     
     private volatile boolean playRequested = false;
     private float volume = 1.0f;
@@ -77,14 +77,24 @@ public class JavaSoundAudioSink implements AudioSink {
     }
     
     @Override
-    public AudioDataFormat getPreferredFormat() {
+    public AudioSink.AudioFormat getPreferredFormat() {
         return DefaultFormat;
     }
     
     @Override
-    public AudioDataFormat init(AudioDataFormat requestedFormat, float frameDuration, int initialQueueSize, int queueGrowAmount, int queueLimit) {
+    public final int getMaxSupportedChannels() {
+        return 2;
+    }
+    
+    @Override
+    public final boolean isSupported(AudioSink.AudioFormat format) {
+        return true;
+    }
+    
+    @Override
+    public boolean init(AudioSink.AudioFormat requestedFormat, float frameDuration, int initialQueueSize, int queueGrowAmount, int queueLimit) {
         if( !staticAvailable ) {
-            return null;
+            return false;
         }
         // Create the audio format we wish to use
         format = new javax.sound.sampled.AudioFormat(requestedFormat.sampleRate, requestedFormat.sampleSize, requestedFormat.channelCount, requestedFormat.signed, !requestedFormat.littleEndian);
@@ -105,7 +115,7 @@ public class JavaSoundAudioSink implements AudioSink {
         } catch (Exception e) {
             initialized=false;
         }
-        return chosenFormat;
+        return true;
     }
     
     @Override
diff --git a/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java b/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
index 83799b074..723bb9dd1 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
@@ -42,13 +42,23 @@ public class NullAudioSink implements AudioSink {
     }
     
     @Override
-    public AudioDataFormat getPreferredFormat() {
+    public AudioFormat getPreferredFormat() {
         return DefaultFormat;
     }
 
     @Override
-    public AudioDataFormat init(AudioDataFormat requestedFormat, float frameDuration, int initialQueueSize, int queueGrowAmount, int queueLimit) {
-        return requestedFormat;
+    public final int getMaxSupportedChannels() {
+        return 8;
+    }
+    
+    @Override
+    public final boolean isSupported(AudioFormat format) {
+        return true;
+    }
+    
+    @Override
+    public boolean init(AudioFormat requestedFormat, float frameDuration, int initialQueueSize, int queueGrowAmount, int queueLimit) {
+        return true;
     }
     
     @Override