commit fca660cf730161f823e770ad1693fab441477edd
author Mathias Agopian <mathias@google.com> Thu Apr 12 20:43:16 2012 -0700
committer Mathias Agopian <mathias@google.com> Thu Apr 12 20:43:16 2012 -0700
tree 7d193123af4f5a2c2d8f263fe7428135040e01dc
parent b364be8e55a2ce0b0480e237cb9aac30bd215585

don't wake-up eventthread every 16ms if there are no vsync requests

Bug: 6332534
Change-Id: Idf79ad913770c6180969f6c95a9b125fff580231

services/surfaceflinger/EventThread.cpp

diff --git a/services/surfaceflinger/EventThread.cpp b/services/surfaceflinger/EventThread.cpp
index d86c280..21634ee 100644
--- a/services/surfaceflinger/EventThread.cpp
+++ b/services/surfaceflinger/EventThread.cpp
@@ -170,7 +170,7 @@
             }
 
             // wait for something to happen
-            if (mUseSoftwareVSync == true) {
+            if (mUseSoftwareVSync && waitForNextVsync) {
                 // h/w vsync cannot be used (screen is off), so we use
                 // a  timeout instead. it doesn't matter how imprecise this
                 // is, we just need to make sure to serve the clients