More Gaming Tricks with OpenGL and JNI - Pro Android Games - page 72

private void guardedRun() throws InterruptedException {
mEglHelper = new EglHelper();
// Specify a configuration for the OpenGL session
int[] configSpec = mRenderer.getConfigSpec();
mEglHelper.start(configSpec);
GL10 gl = null;
boolean tellRendererSurfaceCreated = true;
boolean tellRendererSurfaceChanged = true;
// This is the main activity thread's loop
while (!mDone) {
// Update the asynchronous state (window size)
int w, h;
boolean changed;
boolean needStart = false;
synchronized (this) {
Runnable r;
while ((r = getEvent()) != null) {
r.run();
}
if (mPaused) {
mEglHelper.finish();
needStart = true;
}
if (needToWait()) {
while (needToWait()) {
wait();
}
}
if (mDone) {
break;
}
changed = mSizeChanged;
w = mWidth;
h = mHeight;
mSizeChanged = false;
}
if (needStart) {
mEglHelper.start(configSpec);
tellRendererSurfaceCreated = true;
changed = true;
}
if (changed) {
// Create the surface
gl = (GL10) mEglHelper.createSurface(mHolder);
tellRendererSurfaceChanged = true;
}