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

libs/gui/tests/DisplayedContentSampling_test.cpp

diff --git a/libs/gui/tests/DisplayedContentSampling_test.cpp b/libs/gui/tests/DisplayedContentSampling_test.cpp
index f9d5dd6..5443812 100644
--- a/libs/gui/tests/DisplayedContentSampling_test.cpp
+++ b/libs/gui/tests/DisplayedContentSampling_test.cpp
@@ -104,4 +104,19 @@
                                                                0);
     EXPECT_EQ(OK, status);
 }
+
+TEST_F(DisplayedContentSamplingTest, SampleCollectionCoherentWithSupportMask) {
+    if (shouldSkipTest()) return;
+
+    DisplayedFrameStats stats;
+    status_t status = mComposerClient->getDisplayedContentSample(mDisplayToken, 0, 0, &stats);
+    EXPECT_EQ(OK, status);
+    if (stats.numFrames <= 0) return;
+
+    if (componentMask & (0x1 << 0)) EXPECT_NE(0, stats.component_0_sample.size());
+    if (componentMask & (0x1 << 1)) EXPECT_NE(0, stats.component_1_sample.size());
+    if (componentMask & (0x1 << 2)) EXPECT_NE(0, stats.component_2_sample.size());
+    if (componentMask & (0x1 << 3)) EXPECT_NE(0, stats.component_3_sample.size());
+}
+
 } // namespace android

libs/gui/tests/Surface_test.cpp

diff --git a/libs/gui/tests/Surface_test.cpp b/libs/gui/tests/Surface_test.cpp
index cb1756f..d37b810 100644
--- a/libs/gui/tests/Surface_test.cpp
+++ b/libs/gui/tests/Surface_test.cpp
@@ -652,6 +652,11 @@
                                               uint64_t /*maxFrames*/) const override {
         return NO_ERROR;
     }
+    status_t getDisplayedContentSample(const sp<IBinder>& /*display*/, uint64_t /*maxFrames*/,
+                                       uint64_t /*timestamp*/,
+                                       DisplayedFrameStats* /*outStats*/) const override {
+        return NO_ERROR;
+    }
 
     virtual status_t getColorManagement(bool* /*outGetColorManagement*/) const { return NO_ERROR; }