mutter/0001-clutter-Do-not-check-redraw-area-for-pointer-repicks.patch
2022-01-27 09:30:46 -08:00

178 lines
6.7 KiB
Diff

From dbfde95c5c7b4fb41e816b65d05d1ac20d59dd8a Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Wed, 26 Jan 2022 18:39:27 +0100
Subject: [PATCH 1/2] clutter: Do not check redraw area for pointer repicks
This looks like a relic of glReadPixels-based picking, the pointer
might well be outside redrawn areas, yet still require a device
update (e.g. in order to reflect the actor layout changes in the
"clear area" info).
Instead, always update all devices that are inside the view after
relayouts, the tracking on the need for that update is now done
on each ClutterStageView, instead of globally in the ClutterStage.
This theoretically fixes situations where pointers might miss
updating their "clear area" after the actor tree changed.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2117
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2257>
---
clutter/clutter/clutter-stage-private.h | 3 +-
clutter/clutter/clutter-stage-view-private.h | 2 +
clutter/clutter/clutter-stage-view.c | 14 ++++++-
clutter/clutter/clutter-stage.c | 39 ++++++++++++--------
4 files changed, 41 insertions(+), 17 deletions(-)
diff --git a/clutter/clutter/clutter-stage-private.h b/clutter/clutter/clutter-stage-private.h
index 50502845bf..efa341cc19 100644
--- a/clutter/clutter/clutter-stage-private.h
+++ b/clutter/clutter/clutter-stage-private.h
@@ -75,7 +75,8 @@ void _clutter_stage_maybe_setup_viewport (ClutterStage
ClutterStageView *view);
void clutter_stage_maybe_relayout (ClutterActor *stage);
void clutter_stage_maybe_finish_queue_redraws (ClutterStage *stage);
-GSList * clutter_stage_find_updated_devices (ClutterStage *stage);
+GSList * clutter_stage_find_updated_devices (ClutterStage *stage,
+ ClutterStageView *view);
void clutter_stage_update_devices (ClutterStage *stage,
GSList *devices);
void clutter_stage_finish_layout (ClutterStage *stage);
diff --git a/clutter/clutter/clutter-stage-view-private.h b/clutter/clutter/clutter-stage-view-private.h
index 0a20d75b17..39d8601ea5 100644
--- a/clutter/clutter/clutter-stage-view-private.h
+++ b/clutter/clutter/clutter-stage-view-private.h
@@ -79,4 +79,6 @@ void clutter_stage_view_notify_presented (ClutterStageView *view,
CLUTTER_EXPORT
void clutter_stage_view_notify_ready (ClutterStageView *view);
+void clutter_stage_view_invalidate_input_devices (ClutterStageView *view);
+
#endif /* __CLUTTER_STAGE_VIEW_PRIVATE_H__ */
diff --git a/clutter/clutter/clutter-stage-view.c b/clutter/clutter/clutter-stage-view.c
index ea7f572480..8a82de71ed 100644
--- a/clutter/clutter/clutter-stage-view.c
+++ b/clutter/clutter/clutter-stage-view.c
@@ -93,6 +93,7 @@ typedef struct _ClutterStageViewPrivate
guint dirty_viewport : 1;
guint dirty_projection : 1;
+ guint needs_update_devices : 1;
} ClutterStageViewPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (ClutterStageView, clutter_stage_view, G_TYPE_OBJECT)
@@ -1176,7 +1177,8 @@ handle_frame_clock_frame (ClutterFrameClock *frame_clock,
clutter_stage_finish_layout (stage);
- devices = clutter_stage_find_updated_devices (stage);
+ if (priv->needs_update_devices)
+ devices = clutter_stage_find_updated_devices (stage, view);
frame = CLUTTER_FRAME_INIT;
@@ -1200,6 +1202,7 @@ handle_frame_clock_frame (ClutterFrameClock *frame_clock,
_clutter_stage_window_finish_frame (stage_window, view, &frame);
clutter_stage_update_devices (stage, devices);
+ priv->needs_update_devices = FALSE;
_clutter_run_repaint_functions (CLUTTER_REPAINT_FLAGS_POST_PAINT);
clutter_stage_emit_after_update (stage, view);
@@ -1522,3 +1525,12 @@ clutter_stage_view_class_init (ClutterStageViewClass *klass)
g_object_class_install_properties (object_class, PROP_LAST, obj_props);
}
+
+void
+clutter_stage_view_invalidate_input_devices (ClutterStageView *view)
+{
+ ClutterStageViewPrivate *priv =
+ clutter_stage_view_get_instance_private (view);
+
+ priv->needs_update_devices = TRUE;
+}
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index 3ef7ba69eb..c791959016 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -127,7 +127,6 @@ struct _ClutterStagePrivate
int update_freeze_count;
- gboolean needs_update_devices;
gboolean pending_finish_queue_redraws;
GHashTable *pointer_devices;
@@ -785,6 +784,19 @@ clutter_stage_dequeue_actor_relayout (ClutterStage *stage,
}
}
+static void
+clutter_stage_invalidate_views_devices (ClutterStage *stage)
+{
+ GList *l;
+
+ for (l = clutter_stage_peek_stage_views (stage); l; l = l->next)
+ {
+ ClutterStageView *view = l->data;
+
+ clutter_stage_view_invalidate_input_devices (view);
+ }
+}
+
void
clutter_stage_maybe_relayout (ClutterActor *actor)
{
@@ -832,36 +844,33 @@ clutter_stage_maybe_relayout (ClutterActor *actor)
CLUTTER_NOTE (ACTOR, "<<< Completed recomputing layout of %d subtrees", count);
if (count)
- priv->needs_update_devices = TRUE;
+ clutter_stage_invalidate_views_devices (stage);
}
GSList *
-clutter_stage_find_updated_devices (ClutterStage *stage)
+clutter_stage_find_updated_devices (ClutterStage *stage,
+ ClutterStageView *view)
{
ClutterStagePrivate *priv = stage->priv;
GSList *updating = NULL;
GHashTableIter iter;
gpointer value;
- if (!priv->needs_update_devices)
- return NULL;
-
- priv->needs_update_devices = FALSE;
-
g_hash_table_iter_init (&iter, priv->pointer_devices);
while (g_hash_table_iter_next (&iter, NULL, &value))
{
PointerDeviceEntry *entry = value;
- ClutterStageView *view;
- const cairo_region_t *clip;
+ ClutterStageView *pointer_view;
- view = clutter_stage_get_view_at (stage, entry->coords.x, entry->coords.y);
- if (!view)
+ pointer_view = clutter_stage_get_view_at (stage,
+ entry->coords.x,
+ entry->coords.y);
+ if (!pointer_view)
+ continue;
+ if (pointer_view != view)
continue;
- clip = clutter_stage_view_peek_redraw_clip (view);
- if (!clip || cairo_region_contains_point (clip, entry->coords.x, entry->coords.y))
- updating = g_slist_prepend (updating, entry->device);
+ updating = g_slist_prepend (updating, entry->device);
}
return updating;
--
2.35.0.rc1