commit 1d4249acec3ee6a936f2400177a3316b60388057
author Kevin DuBois <kevindubois@google.com> Wed Aug 29 10:45:14 2018 -0700
committer Kevin DuBois <kevindubois@google.com> Wed Dec 05 09:08:15 2018 -0800
tree c3cb4ca078abcb396063af23184e839a73902971
parent 07ee215a85de1053e71e3df94feaf502aea676c6

[SurfaceFlinger] add getDisplayedContentSample i/f

Add interface to ISurfaceComposer that can query the
graphics.composer for statistics on the displayed pixel content.

Bug: 116028618
Test: Boot
Test: ran test client, see data collected
Change-Id: Ide9b81b80c3399e7d648c7b611514e0d699120de

services/surfaceflinger/DisplayHardware/HWC2.h

diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index 2d65051..f5cb97e 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -40,6 +40,7 @@
 #include "PowerAdvisor.h"
 
 namespace android {
+    struct DisplayedFrameStats;
     class Fence;
     class FloatRect;
     class GraphicBuffer;
@@ -243,6 +244,8 @@
     [[clang::warn_unused_result]] Error setDisplayContentSamplingEnabled(bool enabled,
                                                                          uint8_t componentMask,
                                                                          uint64_t maxFrames) const;
+    [[clang::warn_unused_result]] Error getDisplayedContentSample(
+            uint64_t maxFrames, uint64_t timestamp, android::DisplayedFrameStats* outStats) const;
     [[clang::warn_unused_result]] Error getReleaseFences(
             std::unordered_map<Layer*,
                     android::sp<android::Fence>>* outFences) const;