commit a2eb34cfbe089deb9a519e9702e17d9dfe26f9e8
author Ian Elliott <ianelliott@google.com> Tue Jul 18 11:05:49 2017 -0600
committer Ian Elliott <ianelliott@google.com> Mon Jul 31 15:34:11 2017 +0000
tree 292e7d3fb3a109268e8e5304b789023b10ecbbbf
parent 8cbab7c3c93c1bc9364a81726f02eeacc4a9356b

Have the Surface class track the buffer age.

Have the Surface class track the buffer age, so that Surface::query()
can return the buffer age without having to use a binder call to
BufferQueueProducer::query().  The idea is for
BufferQueueProducer::dequeueBuffer() to return the value, which the
Surface class will cache for later use by Surface::query().

Bug: b/27903668
Test: Use systrace to no ensure query binder call after dequeueBuffer.
Change-Id: I106a7bd27461d381f0bd84df70d804de56a128ab
(cherry picked from commit d11b044864be525a1646f93106ab496195bb8239)

services/surfaceflinger/MonitoredProducer.cpp

diff --git a/services/surfaceflinger/MonitoredProducer.cpp b/services/surfaceflinger/MonitoredProducer.cpp
index e717632..d103820 100644
--- a/services/surfaceflinger/MonitoredProducer.cpp
+++ b/services/surfaceflinger/MonitoredProducer.cpp
@@ -68,11 +68,11 @@
     return mProducer->setAsyncMode(async);
 }
 
-status_t MonitoredProducer::dequeueBuffer(int* slot, sp<Fence>* fence,
-        uint32_t w, uint32_t h, PixelFormat format, uint64_t usage,
-        FrameEventHistoryDelta* outTimestamps) {
-    return mProducer->dequeueBuffer(
-            slot, fence, w, h, format, usage, outTimestamps);
+status_t MonitoredProducer::dequeueBuffer(int* slot, sp<Fence>* fence, uint32_t w, uint32_t h,
+                                          PixelFormat format, uint64_t usage,
+                                          uint64_t* outBufferAge,
+                                          FrameEventHistoryDelta* outTimestamps) {
+    return mProducer->dequeueBuffer(slot, fence, w, h, format, usage, outBufferAge, outTimestamps);
 }
 
 status_t MonitoredProducer::detachBuffer(int slot) {