Bag of scheduling tweaks

 Bug: 15118640

 * Prevent over-stuffing the queue by dropping frames
 * Prevent double-drawing in one pulse by RT by deferring
   vsync registration until post-draw so that it catches
   the next vsync pulse instead of the current one
 * Bias vsync race condition towards the UI thread
 * Fix queueDelay to actually work

Change-Id: Ibf584258bd93ebcbba058bd976dc8b307f1c6155

1 files changed, 7 insertions, 0 deletions

diff --git a/core/jni/android_view_ThreadedRenderer.cpp b/core/jni/android_view_ThreadedRenderer.cpp
index 48fb729..5bc0f62 100644
--- a/core/jni/android_view_ThreadedRenderer.cpp
+++ b/core/jni/android_view_ThreadedRenderer.cpp
@@ -299,6 +299,12 @@ static void android_view_ThreadedRenderer_fence(JNIEnv* env, jobject clazz,
     proxy->fence();
 }
 
+static void android_view_ThreadedRenderer_notifyFramePending(JNIEnv* env, jobject clazz,
+        jlong proxyPtr) {
+    RenderProxy* proxy = reinterpret_cast<RenderProxy*>(proxyPtr);
+    proxy->notifyFramePending();
+}
+
 #endif
 
 // ----------------------------------------------------------------------------
@@ -329,6 +335,7 @@ static JNINativeMethod gMethods[] = {
     { "nCopyLayerInto", "(JJJ)Z", (void*) android_view_ThreadedRenderer_copyLayerInto },
     { "nDestroyLayer", "(JJ)V", (void*) android_view_ThreadedRenderer_destroyLayer },
     { "nFence", "(J)V", (void*) android_view_ThreadedRenderer_fence },
+    { "nNotifyFramePending", "(J)V", (void*) android_view_ThreadedRenderer_notifyFramePending },
 #endif
 };