[mutter] clutter: Add vblank duration to ClutterStageView

[Marge Bot <marge-bot src gnome org>]

commit d10567ea3e0ba9dbcaf7df09926238441f4968df
Author: Ivan Molodetskikh <yalterz gmail com>
Date:   Wed Jan 6 15:18:26 2021 +0300

    clutter: Add vblank duration to ClutterStageView
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1762>

 clutter/clutter/clutter-stage-view.c       | 17 +++++++++++++++++
 src/backends/native/meta-renderer-native.c |  1 +
 2 files changed, 18 insertions(+)
---
diff --git a/clutter/clutter/clutter-stage-view.c b/clutter/clutter/clutter-stage-view.c
index d6755e3c4e..0f8f7c6ee7 100644
--- a/clutter/clutter/clutter-stage-view.c
+++ b/clutter/clutter/clutter-stage-view.c
@@ -43,6 +43,7 @@ enum
   PROP_USE_SHADOWFB,
   PROP_SCALE,
   PROP_REFRESH_RATE,
+  PROP_VBLANK_DURATION_US,
 
   PROP_LAST
 };
@@ -79,6 +80,7 @@ typedef struct _ClutterStageViewPrivate
   cairo_region_t *redraw_clip;
 
   float refresh_rate;
+  int64_t vblank_duration_us;
   ClutterFrameClock *frame_clock;
 
   struct {
@@ -1298,6 +1300,9 @@ clutter_stage_view_get_property (GObject    *object,
     case PROP_REFRESH_RATE:
       g_value_set_float (value, priv->refresh_rate);
       break;
+    case PROP_VBLANK_DURATION_US:
+      g_value_set_int64 (value, priv->vblank_duration_us);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
     }
@@ -1341,6 +1346,9 @@ clutter_stage_view_set_property (GObject      *object,
     case PROP_REFRESH_RATE:
       priv->refresh_rate = g_value_get_float (value);
       break;
+    case PROP_VBLANK_DURATION_US:
+      priv->vblank_duration_us = g_value_get_int64 (value);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
     }
@@ -1500,5 +1508,14 @@ clutter_stage_view_class_init (ClutterStageViewClass *klass)
                         G_PARAM_CONSTRUCT |
                         G_PARAM_STATIC_STRINGS);
 
+  obj_props[PROP_VBLANK_DURATION_US] =
+    g_param_spec_int64 ("vblank-duration-us",
+                        "Vblank duration (µs)",
+                        "The vblank duration",
+                        0, G_MAXINT64, 0,
+                        G_PARAM_READWRITE |
+                        G_PARAM_CONSTRUCT_ONLY |
+                        G_PARAM_STATIC_STRINGS);
+
   g_object_class_install_properties (object_class, PROP_LAST, obj_props);
 }
diff --git a/src/backends/native/meta-renderer-native.c b/src/backends/native/meta-renderer-native.c
index 9256b679d3..4784b88e48 100644
--- a/src/backends/native/meta-renderer-native.c
+++ b/src/backends/native/meta-renderer-native.c
@@ -1217,6 +1217,7 @@ meta_renderer_native_create_view (MetaRenderer       *renderer,
                        "use-shadowfb", use_shadowfb,
                        "transform", view_transform,
                        "refresh-rate", crtc_mode_info->refresh_rate,
+                       "vblank-duration-us", crtc_mode_info->vblank_duration_us,
                        NULL);
 
   if (META_IS_ONSCREEN_NATIVE (framebuffer))