Initialize OpenAL context in the render thread

Also remove useless AndroidAudioRenderer from jme3-ios

jme3-core/src/main/java/com/jme3/audio/openal/ALAudioRenderer.java

@@ -87,67 +87,8 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
         this.alc = alc;
         this.efx = efx;
     }
-
-    public void initialize() {
-        if (!decoderThread.isAlive()) {
-            // Set high priority to avoid buffer starvation.
-            decoderThread.setDaemon(true);
-            decoderThread.setPriority(Thread.NORM_PRIORITY + 1);
-            decoderThread.start();
-        } else {
-            throw new IllegalStateException("Initialize already called");
-        }
-    }
-
-    private void checkDead() {
-        if (decoderThread.getState() == Thread.State.TERMINATED) {
-            throw new IllegalStateException("Decoding thread is terminated");
-        }
-    }
-
-    public void run() {
-        initInDecoderThread();
-        
-        // Notify render thread that OAL context is available.
-        synchronized (threadLock) {
-            threadLock.set(true);
-            threadLock.notifyAll();
-        }
-
-        long updateRateNanos = (long) (UPDATE_RATE * 1000000000);
-        mainloop:
-        while (true) {
-            long startTime = System.nanoTime();
-
-            if (Thread.interrupted()) {
-                break;
-            }
-
-            synchronized (threadLock) {
-                updateInDecoderThread(UPDATE_RATE);
-            }
-
-            long endTime = System.nanoTime();
-            long diffTime = endTime - startTime;
-
-            if (diffTime < updateRateNanos) {
-                long desiredEndTime = startTime + updateRateNanos;
-                while (System.nanoTime() < desiredEndTime) {
-                    try {
-                        Thread.sleep(1);
-                    } catch (InterruptedException ex) {
-                        break mainloop;
-                    }
-                }
-            }
-        }
-
-        synchronized (threadLock) {
-            cleanupInDecoderThread();
-        }
-    }
-
-    public void initInDecoderThread() {
+    
+    private void initOpenAL() {
         try {
             if (!alc.isCreated()) {
                 alc.createALC();
@@ -228,8 +169,8 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
             logger.log(Level.WARNING, "OpenAL EFX not available! Audio effects won't work.");
         }
     }
-
-    public void cleanupInDecoderThread() {
+    
+    private void destroyOpenAL() {
         if (audioDisabled) {
             alc.destroyALC();
             return;
@@ -266,17 +207,73 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
         alc.destroyALC();
     }
 
-    public void cleanup() {
-        // kill audio thread
+    public void initialize() {
         if (decoderThread.isAlive()) {
-            decoderThread.interrupt();
-            try {
-                decoderThread.join();
-            } catch (InterruptedException ex) {
+            throw new IllegalStateException("Initialize already called");
+        }
+        
+        // Initialize OpenAL context.
+        initOpenAL();
+
+        // Initialize decoder thread.
+        // Set high priority to avoid buffer starvation.
+        decoderThread.setDaemon(true);
+        decoderThread.setPriority(Thread.NORM_PRIORITY + 1);
+        decoderThread.start();
+    }
+
+    private void checkDead() {
+        if (decoderThread.getState() == Thread.State.TERMINATED) {
+            throw new IllegalStateException("Decoding thread is terminated");
+        }
+    }
+
+    public void run() {
+        long updateRateNanos = (long) (UPDATE_RATE * 1000000000);
+        mainloop:
+        while (true) {
+            long startTime = System.nanoTime();
+
+            if (Thread.interrupted()) {
+                break;
+            }
+
+            synchronized (threadLock) {
+                updateInDecoderThread(UPDATE_RATE);
+            }
+
+            long endTime = System.nanoTime();
+            long diffTime = endTime - startTime;
+
+            if (diffTime < updateRateNanos) {
+                long desiredEndTime = startTime + updateRateNanos;
+                while (System.nanoTime() < desiredEndTime) {
+                    try {
+                        Thread.sleep(1);
+                    } catch (InterruptedException ex) {
+                        break mainloop;
+                    }
+                }
             }
         }
     }
 
+    public void cleanup() {
+        // kill audio thread
+        if (!decoderThread.isAlive()) {
+            return;
+        }
+        
+        decoderThread.interrupt();
+        try {
+            decoderThread.join();
+        } catch (InterruptedException ex) {
+        }
+        
+        // destroy OpenAL context
+        destroyOpenAL();
+    }
+
     private void updateFilter(Filter f) {
         int id = f.getId();
         if (id == -1) {
@@ -304,12 +301,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void updateSourceParam(AudioSource src, AudioParam param) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -536,12 +527,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void updateListenerParam(Listener listener, ListenerParam param) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -608,12 +593,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void setEnvironment(Environment env) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled || !supportEfx) {
                 return;
             }
@@ -892,12 +871,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void setListener(Listener listener) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -933,12 +906,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void playSourceInstance(AudioSource src) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -976,12 +943,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void playSource(AudioSource src) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -1018,12 +979,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
     public void pauseSource(AudioSource src) {
         checkDead();
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -1039,12 +994,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
 
     public void stopSource(AudioSource src) {
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }
@@ -1140,12 +1089,6 @@ public class ALAudioRenderer implements AudioRenderer, Runnable {
 
     public void deleteAudioData(AudioData ad) {
         synchronized (threadLock) {
-            while (!threadLock.get()) {
-                try {
-                    threadLock.wait();
-                } catch (InterruptedException ex) {
-                }
-            }
             if (audioDisabled) {
                 return;
             }

jme3-ios/src/main/java/com/jme3/audio/android/AndroidAudioRenderer.java

@@ -1,24 +0,0 @@
-package com.jme3.audio.android;
-
-import com.jme3.audio.AudioRenderer;
-
-/**
- * Android specific AudioRenderer interface that supports pausing and resuming
- * audio files when the app is minimized or placed in the background
- *
- * @author iwgeric
- */
-public interface AndroidAudioRenderer extends AudioRenderer {
-
-    /**
-     * Pauses all Playing audio. To be used when the app is placed in the
-     * background.
-     */
-    public void pauseAll();
-
-    /**
-     * Resumes all Paused audio. To be used when the app is brought back to
-     * the foreground.
-     */
-    public void resumeAll();
-}