1 files changed, 14 insertions, 0 deletions
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 043b075..12f22a7 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -35,6 +35,7 @@
 #include <binder/PermissionCache.h>
 
 #include <ui/DisplayInfo.h>
+#include <ui/DisplayStatInfo.h>
 
 #include <gui/BitTube.h>
 #include <gui/BufferQueue.h>
@@ -603,6 +604,19 @@ status_t SurfaceFlinger::getDisplayConfigs(const sp<IBinder>& display,
     return NO_ERROR;
 }
 
+status_t SurfaceFlinger::getDisplayStats(const sp<IBinder>& display,
+        DisplayStatInfo* stats) {
+    if (stats == NULL) {
+        return BAD_VALUE;
+    }
+
+    // FIXME for now we always return stats for the primary display
+    memset(stats, 0, sizeof(*stats));
+    stats->vsyncTime   = mPrimaryDispSync.computeNextRefresh(0);
+    stats->vsyncPeriod = mPrimaryDispSync.getPeriod();
+    return NO_ERROR;
+}
+
 int SurfaceFlinger::getActiveConfig(const sp<IBinder>& display) {
     return getDisplayDevice(display)->getActiveConfig();
 }