SF: improve RenderThread jank classificaion

Mark UI frames that didn't make it to their expected presentation
due to RenderThread animations as dropped.

Screenshot from Perfetto: https://screenshot.googleplex.com/3pQuNaDYAhHLYu7

Bug: 210605870
Test: manual
Change-Id: Ibc91bcaac2f9296ec0bddd5deebb4289c5b5bf7e
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index cf1b018..f627501 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1349,6 +1349,8 @@
         mDrawingState.bufferSurfaceFrameTX =
                 createSurfaceFrameForBuffer(info, postTime, mTransactionName);
     }
+
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
 }
 
 void Layer::setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
@@ -1380,11 +1382,13 @@
             it->second = createSurfaceFrameForTransaction(info, postTime);
         }
     }
+
+    setFrameTimelineVsyncForSkippedFrames(info, postTime, mTransactionName);
 }
 
 void Layer::addSurfaceFrameDroppedForBuffer(
-        std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame) {
-    surfaceFrame->setDropTime(systemTime());
+        std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame, nsecs_t dropTime) {
+    surfaceFrame->setDropTime(dropTime);
     surfaceFrame->setPresentState(PresentState::Dropped);
     mFlinger->mFrameTimeline->addSurfaceFrame(surfaceFrame);
 }
@@ -1434,6 +1438,32 @@
     return surfaceFrame;
 }
 
+void Layer::setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
+                                                  std::string debugName) {
+    if (info.skippedFrameVsyncId == FrameTimelineInfo::INVALID_VSYNC_ID) {
+        return;
+    }
+
+    FrameTimelineInfo skippedFrameTimelineInfo = info;
+    skippedFrameTimelineInfo.vsyncId = info.skippedFrameVsyncId;
+
+    auto surfaceFrame =
+            mFlinger->mFrameTimeline->createSurfaceFrameForToken(skippedFrameTimelineInfo,
+                                                                 mOwnerPid, mOwnerUid,
+                                                                 getSequence(), mName, debugName,
+                                                                 /*isBuffer*/ false, getGameMode());
+    surfaceFrame->setActualStartTime(skippedFrameTimelineInfo.skippedFrameStartTimeNanos);
+    // For Transactions, the post time is considered to be both queue and acquire fence time.
+    surfaceFrame->setActualQueueTime(postTime);
+    surfaceFrame->setAcquireFenceTime(postTime);
+    const auto fps = mFlinger->mScheduler->getFrameRateOverride(getOwnerUid());
+    if (fps) {
+        surfaceFrame->setRenderRate(*fps);
+    }
+    onSurfaceFrameCreated(surfaceFrame);
+    addSurfaceFrameDroppedForBuffer(surfaceFrame, postTime);
+}
+
 bool Layer::setFrameRateForLayerTreeLegacy(FrameRate frameRate) {
     if (mDrawingState.frameRateForLayerTree == frameRate) {
         return false;
@@ -3067,7 +3097,7 @@
             decrementPendingBufferCount();
             if (mDrawingState.bufferSurfaceFrameTX != nullptr &&
                 mDrawingState.bufferSurfaceFrameTX->getPresentState() != PresentState::Presented) {
-                addSurfaceFrameDroppedForBuffer(mDrawingState.bufferSurfaceFrameTX);
+                addSurfaceFrameDroppedForBuffer(mDrawingState.bufferSurfaceFrameTX, systemTime());
                 mDrawingState.bufferSurfaceFrameTX.reset();
             }
         } else if (EARLY_RELEASE_ENABLED && mLastClientCompositionFence != nullptr) {
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index f34fdd9..2fbbbdc 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -785,8 +785,8 @@
     void setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
                                                        nsecs_t postTime);
 
-    void addSurfaceFrameDroppedForBuffer(
-            std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame);
+    void addSurfaceFrameDroppedForBuffer(std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame,
+                                         nsecs_t dropTime);
     void addSurfaceFramePresentedForBuffer(
             std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame, nsecs_t acquireFenceTime,
             nsecs_t currentLatchTime);
@@ -795,6 +795,8 @@
             const FrameTimelineInfo& info, nsecs_t postTime);
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForBuffer(
             const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName);
+    void setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
+                                               std::string debugName);
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);
diff --git a/services/surfaceflinger/fuzzer/surfaceflinger_layer_fuzzer.cpp b/services/surfaceflinger/fuzzer/surfaceflinger_layer_fuzzer.cpp
index 921cae4..9f0bdde 100644
--- a/services/surfaceflinger/fuzzer/surfaceflinger_layer_fuzzer.cpp
+++ b/services/surfaceflinger/fuzzer/surfaceflinger_layer_fuzzer.cpp
@@ -106,7 +106,7 @@
     effectLayer->addSurfaceFramePresentedForBuffer(surfaceFrame,
                                                    mFdp.ConsumeIntegral<int64_t>() /*acquireTime*/,
                                                    mFdp.ConsumeIntegral<int64_t>() /*currentTime*/);
-    effectLayer->addSurfaceFrameDroppedForBuffer(surfaceFrame1);
+    effectLayer->addSurfaceFrameDroppedForBuffer(surfaceFrame1, mFdp.ConsumeIntegral<nsecs_t>());
 
     parent.clear();
     client.clear();