Android: Added methods for OpenAL Soft Audio Renderer to pause and resume audio when app is placed in the background

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10613 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/android/com/jme3/app/AndroidHarness.java

@@ -15,6 +15,7 @@ import android.widget.ImageView;
 import android.widget.TextView;
 import com.jme3.audio.AudioRenderer;
 import com.jme3.audio.android.AndroidAudioRenderer;
+import com.jme3.audio.android.AndroidOpenALSoftAudioRenderer;
 import com.jme3.input.JoyInput;
 import com.jme3.input.TouchInput;
 import com.jme3.input.android.AndroidSensorJoyInput;
@@ -486,6 +487,10 @@ public class AndroidHarness extends Activity implements TouchListener, DialogInt
                     AndroidAudioRenderer renderer = (AndroidAudioRenderer) result;
                     renderer.resumeAll();
                 }
+                if (result instanceof AndroidOpenALSoftAudioRenderer) {
+                    AndroidOpenALSoftAudioRenderer renderer = (AndroidOpenALSoftAudioRenderer) result;
+                    renderer.resumeAll();
+                }
             }
             //resume the sensors (aka joysticks)
             if (app.getContext() != null) {
@@ -525,6 +530,10 @@ public class AndroidHarness extends Activity implements TouchListener, DialogInt
                     AndroidAudioRenderer renderer = (AndroidAudioRenderer) result;
                     renderer.pauseAll();
                 }
+                if (result instanceof AndroidOpenALSoftAudioRenderer) {
+                    AndroidOpenALSoftAudioRenderer renderer = (AndroidOpenALSoftAudioRenderer) result;
+                    renderer.pauseAll();
+                }
             }
             //pause the sensors (aka joysticks)
             if (app.getContext() != null) {

engine/src/android/com/jme3/audio/android/AndroidOpenALSoftAudioRenderer.java

@@ -1299,6 +1299,69 @@ public class AndroidOpenALSoftAudioRenderer implements AudioRenderer, Runnable {
         }
     }
 
+    public void pauseAll() {
+        checkDead();
+        synchronized (threadLock) {
+            while (!threadLock.get()) {
+                try {
+                    threadLock.wait();
+                } catch (InterruptedException ex) {
+                }
+            }
+            if (audioDisabled) {
+                return;
+            }
+
+            for (int i = 0; i < channels.length; i++) {
+                AudioSource src = chanSrcs[i];
+                if (src == null) {
+                    continue;
+                }
+
+                if (src.getStatus() == Status.Playing) {
+                    assert src.getChannel() != -1;
+
+                    logger.log(Level.FINE, "Pausing Source: {0}", src.getChannel());
+                    alSourcePause(channels[src.getChannel()]);
+                    checkError(true);
+                    src.setStatus(Status.Paused);
+                }
+            }
+
+        }
+    }
+
+    public void resumeAll() {
+        checkDead();
+        synchronized (threadLock) {
+            while (!threadLock.get()) {
+                try {
+                    threadLock.wait();
+                } catch (InterruptedException ex) {
+                }
+            }
+            if (audioDisabled) {
+                return;
+            }
+
+            for (int i = 0; i < channels.length; i++) {
+                AudioSource src = chanSrcs[i];
+                if (src == null) {
+                    continue;
+                }
+
+                if (src.getStatus() == Status.Paused) {
+                    assert src.getChannel() != -1;
+
+                    logger.log(Level.FINE, "Playing/Resuming Source: {0}", src.getChannel());
+                    alSourcePlay(channels[src.getChannel()]);
+                    checkError(true);
+                    src.setStatus(Status.Playing);
+                }
+            }
+        }
+    }
+
     private int checkError(boolean stopOnError) {
         int errorCode = alGetError();
         String errorText = AL.GetALErrorMsg(errorCode);