Merge "Added getLastAcquiredFrameNum" into sc-v2-dev am: 63c48b0491

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/16331734

Change-Id: Ib3d3fb353cb27c1c44486f46f22bdeb75fe562c5
diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 085a11a..f357c17 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -988,4 +988,9 @@
     }
 }
 
+uint64_t BLASTBufferQueue::getLastAcquiredFrameNum() {
+    std::unique_lock _lock{mMutex};
+    return mLastAcquiredFrameNumber;
+}
+
 } // namespace android
diff --git a/libs/gui/include/gui/BLASTBufferQueue.h b/libs/gui/include/gui/BLASTBufferQueue.h
index 615f284..698844c 100644
--- a/libs/gui/include/gui/BLASTBufferQueue.h
+++ b/libs/gui/include/gui/BLASTBufferQueue.h
@@ -110,6 +110,8 @@
     uint32_t getLastTransformHint() const;
     void flushShadowQueue();
 
+    uint64_t getLastAcquiredFrameNum();
+
     virtual ~BLASTBufferQueue();
 
 private: