Atomic: Don’t keep track of Cursor planes

ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc

Index: ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc
diff --git a/ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc b/ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc
index fcb888a753192bdda15f3f4cfacba526c982935d..e08c432e1a8b22e0d5a513bf6e28049bf9345783 100644
--- a/ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc
+++ b/ui/ozone/platform/drm/gpu/hardware_display_plane_atomic.cc
@@ -15,6 +15,7 @@
 namespace ui {
 namespace {
 
+const char* kTypePropName = "type";
 const char* kCrtcPropName = "CRTC_ID";
 const char* kFbPropName = "FB_ID";
 const char* kCrtcXPropName = "CRTC_X";
@@ -26,6 +27,20 @@ const char* kSrcYPropName = "SRC_Y";
 const char* kSrcWPropName = "SRC_W";
 const char* kSrcHPropName = "SRC_H";
 
+HardwareDisplayPlane::Type GetPlaneType(int value) {
+  switch (value) {
+    case DRM_PLANE_TYPE_CURSOR:
+      return HardwareDisplayPlane::kCursor;
+    case DRM_PLANE_TYPE_PRIMARY:
+      return HardwareDisplayPlane::kPrimary;
+    case DRM_PLANE_TYPE_OVERLAY:
+      return HardwareDisplayPlane::kOverlay;
+    default:
+      NOTREACHED();
+      return HardwareDisplayPlane::kDummy;
+  }
+}
+
 }  // namespace
 
 HardwareDisplayPlaneAtomic::Property::Property() {
@@ -91,7 +106,14 @@ bool HardwareDisplayPlaneAtomic::SetPlaneData(drmModePropertySet* property_set,
 
 bool HardwareDisplayPlaneAtomic::Initialize(
     DrmDevice* drm,
-    const std::vector<uint32_t>& formats) {
+    const std::vector<uint32_t>& formats,
+    bool is_dummy) {
+  if (is_dummy) {
+    type_ = kDummy;
+    supported_formats_.push_back(DRM_FORMAT_XRGB8888);
+    return true;
+  }
+
   ScopedDrmObjectPropertyPtr plane_props(drmModeObjectGetProperties(
       drm->get_fd(), plane_id_, DRM_MODE_OBJECT_PLANE));
 
@@ -117,8 +139,14 @@ bool HardwareDisplayPlaneAtomic::Initialize(
   }
 
   supported_formats_ = formats;
-  if (is_dummy())
-    supported_formats_.push_back(DRM_FORMAT_XRGB8888);
+
+  for (uint32_t i = 0; i < plane_props->count_props; i++) {
+    ScopedDrmPropertyPtr property(
+        drmModeGetProperty(drm->get_fd(), plane_props->props[i]));
+    if (property && !strcmp(property->name, kTypePropName)) {
+      type_ = GetPlaneType(plane_props->prop_values[i]);
+    }
+  }
 
   return true;
 }