Fix profile gpu bars to use display fps

Also adds a 'good' bar at 80% threshold
and a 'bad' bar at 150% threshold (where triple
buffering would start to get iffy)

Fixes: 127371028
Test: eyeball'd it

Change-Id: I109cd293f87f8cb9c8f1e66d49fb8fb2188b0bec

1 files changed, 2 insertions, 4 deletions

diff --git a/libs/hwui/renderthread/RenderThread.cpp b/libs/hwui/renderthread/RenderThread.cpp
index 08edd20c0a0d..c784d64f820c 100644
--- a/libs/hwui/renderthread/RenderThread.cpp
+++ b/libs/hwui/renderthread/RenderThread.cpp
@@ -52,9 +52,6 @@ namespace renderthread {
 // using just a few large reads.
 static const size_t EVENT_BUFFER_SIZE = 100;
 
-// Slight delay to give the UI time to push us a new frame before we replay
-static const nsecs_t DISPATCH_FRAME_CALLBACKS_DELAY = milliseconds_to_nanoseconds(4);
-
 static bool gHasRenderThreadInstance = false;
 
 static JVMAttachHook gOnStartHook = nullptr;
@@ -171,6 +168,7 @@ void RenderThread::initThreadLocals() {
     mDisplayInfo = DeviceInfo::get()->displayInfo();
     nsecs_t frameIntervalNanos = static_cast<nsecs_t>(1000000000 / mDisplayInfo.fps);
     mTimeLord.setFrameInterval(frameIntervalNanos);
+    mDispatchFrameDelay = static_cast<nsecs_t>(frameIntervalNanos * .25f);
     initializeDisplayEventReceiver();
     mEglManager = new EglManager();
     mRenderState = new RenderState(*this);
@@ -311,7 +309,7 @@ void RenderThread::drainDisplayEventQueue() {
         if (mTimeLord.vsyncReceived(vsyncEvent) && !mFrameCallbackTaskPending) {
             ATRACE_NAME("queue mFrameCallbackTask");
             mFrameCallbackTaskPending = true;
-            nsecs_t runAt = (vsyncEvent + DISPATCH_FRAME_CALLBACKS_DELAY);
+            nsecs_t runAt = (vsyncEvent + mDispatchFrameDelay);
             queue().postAt(runAt, [this]() { dispatchFrameCallbacks(); });
         }
     }