commit ed511efbdfac3408cb3ae237016f095fd64cebec
author Rachel Lee <rnlee@google.com> Mon Oct 11 15:09:51 2021 -0700
committer Rachel Lee <rnlee@google.com> Thu Dec 09 16:27:34 2021 -0800
tree d4c3d5a85a94c90939b74648a7282ccbf1a6d94e
parent 772b32776fb14cce1f03ce87676aacaf9f877565

Add frame timeline method to ASurfaceControl NDK.

Bug: 198192003
Test: atest ASurfaceControlTest
perfetto trace

Change-Id: I04310bd9190cfc227ff5ba892c7187d3b8a20463

libs/gui/FrameTimelineInfo.cpp

diff --git a/libs/gui/FrameTimelineInfo.cpp b/libs/gui/FrameTimelineInfo.cpp
index 9231a57..3800b88 100644
--- a/libs/gui/FrameTimelineInfo.cpp
+++ b/libs/gui/FrameTimelineInfo.cpp
@@ -33,12 +33,14 @@
 status_t FrameTimelineInfo::write(Parcel& output) const {
     SAFE_PARCEL(output.writeInt64, vsyncId);
     SAFE_PARCEL(output.writeInt32, inputEventId);
+    SAFE_PARCEL(output.writeInt64, startTimeNanos);
     return NO_ERROR;
 }
 
 status_t FrameTimelineInfo::read(const Parcel& input) {
     SAFE_PARCEL(input.readInt64, &vsyncId);
     SAFE_PARCEL(input.readInt32, &inputEventId);
+    SAFE_PARCEL(input.readInt64, &startTimeNanos);
     return NO_ERROR;
 }
 
@@ -48,16 +50,19 @@
         if (other.vsyncId > vsyncId) {
             vsyncId = other.vsyncId;
             inputEventId = other.inputEventId;
+            startTimeNanos = other.startTimeNanos;
         }
     } else if (vsyncId == INVALID_VSYNC_ID) {
         vsyncId = other.vsyncId;
         inputEventId = other.inputEventId;
+        startTimeNanos = other.startTimeNanos;
     }
 }
 
 void FrameTimelineInfo::clear() {
     vsyncId = INVALID_VSYNC_ID;
     inputEventId = IInputConstants::INVALID_INPUT_EVENT_ID;
+    startTimeNanos = 0;
 }
 
 }; // namespace android

libs/gui/Surface.cpp

diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 353a91d..20c4146 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -1846,9 +1846,10 @@
     ATRACE_CALL();
     auto frameTimelineVsyncId = static_cast<int64_t>(va_arg(args, int64_t));
     auto inputEventId = static_cast<int32_t>(va_arg(args, int32_t));
+    auto startTimeNanos = static_cast<int64_t>(va_arg(args, int64_t));
 
     ALOGV("Surface::%s", __func__);
-    return setFrameTimelineInfo({frameTimelineVsyncId, inputEventId});
+    return setFrameTimelineInfo({frameTimelineVsyncId, inputEventId, startTimeNanos});
 }
 
 bool Surface::transformToDisplayInverse() const {

libs/gui/include/gui/FrameTimelineInfo.h

diff --git a/libs/gui/include/gui/FrameTimelineInfo.h b/libs/gui/include/gui/FrameTimelineInfo.h
index a23c202..255ce56 100644
--- a/libs/gui/include/gui/FrameTimelineInfo.h
+++ b/libs/gui/include/gui/FrameTimelineInfo.h
@@ -36,6 +36,9 @@
     // not directly vendor available.
     int32_t inputEventId = 0;
 
+    // The current time in nanoseconds the application started to render the frame.
+    int64_t startTimeNanos = 0;
+
     status_t write(Parcel& output) const;
     status_t read(const Parcel& input);