Init workload target in java FrameInfo

FrameInfo's workload target was never initialized on the Java
side, and it resulted in occasions where the workload target
value was 0. FrameInfo in DrawFrameTask populates itself from
the FrameInfo.java, and this info is propagated into CanvasContext.
This change ensures that the workload target also has a value
going into JankTracker.

Fixes: b/395917245
Test: presubmit, wear metric tests
Flag: EXEMPT, bug fix
Change-Id: I6540ee66d1ad8b0a22da516120cb2b9135c70398

1 files changed, 5 insertions, 2 deletions

diff --git a/graphics/java/android/graphics/FrameInfo.java b/graphics/java/android/graphics/FrameInfo.java
index 7d236d203201..3b8f46630344 100644
--- a/graphics/java/android/graphics/FrameInfo.java
+++ b/graphics/java/android/graphics/FrameInfo.java
@@ -93,10 +93,12 @@ public final class FrameInfo {
     // Interval between two consecutive frames
     public static final int FRAME_INTERVAL = 11;
 
+    // Workload target deadline for a frame
+    public static final int WORKLOAD_TARGET = 12;
+
     // Must be the last one
     // This value must be in sync with `UI_THREAD_FRAME_INFO_SIZE` in FrameInfo.h
-    // In calculating size, + 1 for Flags, and + 1 for WorkloadTarget from FrameInfo.h
-    private static final int FRAME_INFO_SIZE = FRAME_INTERVAL + 2;
+    private static final int FRAME_INFO_SIZE = WORKLOAD_TARGET + 1;
 
     /** checkstyle */
     public void setVsync(long intendedVsync, long usedVsync, long frameTimelineVsyncId,
@@ -108,6 +110,7 @@ public final class FrameInfo {
         frameInfo[FRAME_DEADLINE] = frameDeadline;
         frameInfo[FRAME_START_TIME] = frameStartTime;
         frameInfo[FRAME_INTERVAL] = frameInterval;
+        frameInfo[WORKLOAD_TARGET] = frameDeadline - intendedVsync;
     }
 
     /** checkstyle */