Merge "libhwc2on1adapter: avoid marking changes if visible regions unchanged" into oc-mr1-dev

1 files changed, 14 insertions, 3 deletions

diff --git a/libs/hwc2on1adapter/HWC2On1Adapter.cpp b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
index 8c6ef691a2..e1b9a8a6f1 100644
--- a/libs/hwc2on1adapter/HWC2On1Adapter.cpp
+++ b/libs/hwc2on1adapter/HWC2On1Adapter.cpp
@@ -2005,10 +2005,21 @@ Error HWC2On1Adapter::Layer::setTransform(Transform transform) {
     return Error::None;
 }
 
+static bool compareRects(const hwc_rect_t& rect1, const hwc_rect_t& rect2) {
+    return rect1.left == rect2.left &&
+            rect1.right == rect2.right &&
+            rect1.top == rect2.top &&
+            rect1.bottom == rect2.bottom;
+}
+
 Error HWC2On1Adapter::Layer::setVisibleRegion(hwc_region_t visible) {
-    mVisibleRegion.resize(visible.numRects);
-    std::copy_n(visible.rects, visible.numRects, mVisibleRegion.begin());
-    mDisplay.markGeometryChanged();
+    if ((getNumVisibleRegions() != visible.numRects) ||
+        !std::equal(mVisibleRegion.begin(), mVisibleRegion.end(), visible.rects,
+                    compareRects)) {
+        mVisibleRegion.resize(visible.numRects);
+        std::copy_n(visible.rects, visible.numRects, mVisibleRegion.begin());
+        mDisplay.markGeometryChanged();
+    }
     return Error::None;
 }