/**
* This function is invoked by Gecko (compositor thread) via JNI; be careful when modifying
* signature.
*/
public static GLController registerCxxCompositor() {
try {
LayerView layerView = GeckoAppShell.getLayerView();
GLController controller = layerView.getGLController();
controller.compositorCreated();
return controller;
} catch (Exception e) {
Log.e(LOGTAG, "Error registering compositor!", e);
return null;
}
}
private void surfaceChanged(int width, int height) {
mGLController.surfaceChanged(width, height);
if (mListener != null) {
mListener.surfaceChanged(width, height);
}
}
public LayerView(Context context, AttributeSet attrs) {
super(context, attrs);
mGLController = GLController.getInstance(this);
mPaintState = PAINT_START;
mBackgroundColor = Color.WHITE;
mTouchInterceptors = new ArrayList<TouchEventInterceptor>();
}
/* When using a SurfaceView (mSurfaceView != null), resizing happens in two
* phases. First, the LayerView changes size, then, often some frames later,
* the SurfaceView changes size. Because of this, we need to split the
* resize into two phases to avoid jittering.
*
* The first phase is the LayerView size change. mListener is notified so
* that a synchronous draw can be performed (otherwise a blank frame will
* appear).
*
* The second phase is the SurfaceView size change. At this point, the
* backing GL surface is resized and another synchronous draw is performed.
* Gecko is also sent the new window size, and this will likely cause an
* extra draw a few frames later, after it's re-rendered and caught up.
*
* In the case that there is no valid GL surface (for example, when
* resuming, or when coming back from the awesomescreen), or we're using a
* TextureView instead of a SurfaceView, the first phase is skipped.
*/
private void onSizeChanged(int width, int height) {
if (!mGLController.hasValidSurface() || mSurfaceView == null) {
surfaceChanged(width, height);
return;
}
if (mListener != null) {
mListener.sizeChanged(width, height);
}
}
private void onDestroyed() {
mGLController.surfaceDestroyed();
}