diff options
| -rw-r--r-- | src/net/java/games/jogl/Animator.java | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/net/java/games/jogl/Animator.java b/src/net/java/games/jogl/Animator.java index d9f2c6729..d21d483e1 100644 --- a/src/net/java/games/jogl/Animator.java +++ b/src/net/java/games/jogl/Animator.java @@ -62,6 +62,7 @@ public class Animator { private Thread thread; private boolean shouldStop; + /** Creates a new Animator for a particular drawable. */ public Animator(GLDrawable drawable) { this.drawable = drawable; @@ -71,6 +72,7 @@ public class Animator { } } + /** Starts this animator. */ public synchronized void start() { if (thread != null) { throw new GLException("Already started"); @@ -78,8 +80,23 @@ public class Animator { if (runnable == null) { runnable = new Runnable() { public void run() { + // Try to get OpenGL context optimization since we know we + // will be rendering this one drawable continually from + // this thread; make the context current once instead of + // making it current and freeing it each frame. drawable.setRenderingThread(Thread.currentThread()); + + // Since setRenderingThread is currently advisory (because + // of the poor JAWT implementation in the Motif AWT, which + // performs excessive locking) we also prevent repaint(), + // which is called from the AWT thread, from having an + // effect for better multithreading behavior. This call is + // not strictly necessary, but if end users write their + // own animation loops which update multiple drawables per + // tick then it may be necessary to enforce the order of + // updates. drawable.setNoAutoRedrawMode(true); + boolean noException = false; try { while (!shouldStop) { @@ -108,6 +125,8 @@ public class Animator { thread.start(); } + /** Stops this animator, blocking until the animation thread has + finished. */ public synchronized void stop() { shouldStop = true; while (shouldStop && thread != null) { |