@CalledByNative
private void requestRender() {
ContentViewCore contentViewCore =
mCurrentContentView != null ? mCurrentContentView.getContentViewCore() : null;
boolean rendererHasFrame =
contentViewCore != null && contentViewCore.consumePendingRendererFrame();
if (rendererHasFrame && mPendingSwapBuffers + mPendingRenders < MAX_SWAP_BUFFER_COUNT) {
TraceEvent.instant("requestRender:now");
mNeedToRender = false;
mPendingRenders++;
// The handler can be null if we are detached from the window. Calling
// {@link View#post(Runnable)} properly handles this case, but we lose the front of
// queue behavior. That is okay for this edge case.
Handler handler = getHandler();
if (handler != null) {
handler.postAtFrontOfQueue(mRenderRunnable);
} else {
post(mRenderRunnable);
}
mVSyncAdapter.requestUpdate();
} else if (mPendingRenders <= 0) {
assert mPendingRenders == 0;
TraceEvent.instant("requestRender:later");
mNeedToRender = true;
mVSyncAdapter.requestUpdate();
}
}
