[mutter/wip/carlosg/unthrottled-wayland: 18/23] clutter: Store the per-pointer picked actor's clear area
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter/wip/carlosg/unthrottled-wayland: 18/23] clutter: Store the per-pointer picked actor's clear area
- Date: Tue, 7 Dec 2021 18:56:11 +0000 (UTC)
commit 2751737d805b06e47736880a483c97bb15941ac0
Author: Carlos Garnacho <carlosg gnome org>
Date: Mon Jul 5 17:23:21 2021 +0200
clutter: Store the per-pointer picked actor's clear area
And resort to it first, unless we are told to ignore the cache
(e.g. after relayouts). This avoids further pick context operations
while the pointer is on the current actor.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1915>
clutter/clutter/clutter-main.c | 1 +
clutter/clutter/clutter-mutter.h | 1 +
clutter/clutter/clutter-stage-private.h | 4 +-
clutter/clutter/clutter-stage.c | 84 +++++++++++++++++++++++++++------
4 files changed, 74 insertions(+), 16 deletions(-)
---
diff --git a/clutter/clutter/clutter-main.c b/clutter/clutter/clutter-main.c
index 7dd1767c22..100061923b 100644
--- a/clutter/clutter/clutter-main.c
+++ b/clutter/clutter/clutter-main.c
@@ -901,6 +901,7 @@ remove_device_for_event (ClutterStage *stage,
point,
time,
NULL,
+ NULL,
TRUE);
clutter_stage_remove_device_entry (stage, device, sequence);
diff --git a/clutter/clutter/clutter-mutter.h b/clutter/clutter/clutter-mutter.h
index 1b5d216797..b383ff518c 100644
--- a/clutter/clutter/clutter-mutter.h
+++ b/clutter/clutter/clutter-mutter.h
@@ -108,6 +108,7 @@ void clutter_stage_update_device (ClutterStage *stage,
graphene_point_t point,
uint32_t time,
ClutterActor *new_actor,
+ cairo_region_t *region,
gboolean emit_crossing);
CLUTTER_EXPORT
diff --git a/clutter/clutter/clutter-stage-private.h b/clutter/clutter/clutter-stage-private.h
index 0fc4711b03..ac8e515171 100644
--- a/clutter/clutter/clutter-stage-private.h
+++ b/clutter/clutter/clutter-stage-private.h
@@ -35,6 +35,7 @@ typedef enum
{
CLUTTER_DEVICE_UPDATE_NONE = 0,
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING = 1 << 0,
+ CLUTTER_DEVICE_UPDATE_IGNORE_CACHE = 1 << 1,
} ClutterDeviceUpdateFlags;
/* stage */
@@ -135,7 +136,8 @@ void clutter_stage_update_device_entry (ClutterStage *self,
ClutterInputDevice *device,
ClutterEventSequence *sequence,
graphene_point_t coords,
- ClutterActor *actor);
+ ClutterActor *actor,
+ cairo_region_t *clear_area);
void clutter_stage_remove_device_entry (ClutterStage *self,
ClutterInputDevice *device,
diff --git a/clutter/clutter/clutter-stage.c b/clutter/clutter/clutter-stage.c
index 338f8bf35a..03c7205a20 100644
--- a/clutter/clutter/clutter-stage.c
+++ b/clutter/clutter/clutter-stage.c
@@ -96,6 +96,7 @@ typedef struct _PointerDeviceEntry
ClutterEventSequence *sequence;
graphene_point_t coords;
ClutterActor *current_actor;
+ cairo_region_t *clear_area;
} PointerDeviceEntry;
struct _ClutterStagePrivate
@@ -917,6 +918,7 @@ clutter_stage_update_devices (ClutterStage *stage,
clutter_stage_pick_and_update_device (stage,
device,
NULL,
+ CLUTTER_DEVICE_UPDATE_IGNORE_CACHE |
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING,
entry->coords,
CLUTTER_CURRENT_TIME);
@@ -993,11 +995,12 @@ setup_ray_for_coordinates (ClutterStage *stage,
}
static ClutterActor *
-_clutter_stage_do_pick_on_view (ClutterStage *stage,
- float x,
- float y,
- ClutterPickMode mode,
- ClutterStageView *view)
+_clutter_stage_do_pick_on_view (ClutterStage *stage,
+ float x,
+ float y,
+ ClutterPickMode mode,
+ ClutterStageView *view,
+ cairo_region_t **clear_area)
{
g_autoptr (ClutterPickStack) pick_stack = NULL;
ClutterPickContext *pick_context;
@@ -1015,7 +1018,7 @@ _clutter_stage_do_pick_on_view (ClutterStage *stage,
pick_stack = clutter_pick_context_steal_stack (pick_context);
clutter_pick_context_destroy (pick_context);
- actor = clutter_pick_stack_search_actor (pick_stack, &p, &ray, NULL);
+ actor = clutter_pick_stack_search_actor (pick_stack, &p, &ray, clear_area);
return actor ? actor : CLUTTER_ACTOR (stage);
}
@@ -1047,10 +1050,11 @@ clutter_stage_get_view_at (ClutterStage *stage,
}
static ClutterActor *
-_clutter_stage_do_pick (ClutterStage *stage,
- float x,
- float y,
- ClutterPickMode mode)
+_clutter_stage_do_pick (ClutterStage *stage,
+ float x,
+ float y,
+ ClutterPickMode mode,
+ cairo_region_t **clear_area)
{
ClutterActor *actor = CLUTTER_ACTOR (stage);
ClutterStagePrivate *priv = stage->priv;
@@ -1074,7 +1078,7 @@ _clutter_stage_do_pick (ClutterStage *stage,
view = clutter_stage_get_view_at (stage, x, y);
if (view)
- return _clutter_stage_do_pick_on_view (stage, x, y, mode, view);
+ return _clutter_stage_do_pick_on_view (stage, x, y, mode, view, clear_area);
return actor;
}
@@ -1914,7 +1918,7 @@ clutter_stage_get_actor_at_pos (ClutterStage *stage,
{
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), NULL);
- return _clutter_stage_do_pick (stage, x, y, pick_mode);
+ return _clutter_stage_do_pick (stage, x, y, pick_mode, NULL);
}
/**
@@ -3252,6 +3256,7 @@ on_device_actor_reactive_changed (ClutterActor *actor,
clutter_stage_pick_and_update_device (self,
entry->device,
entry->sequence,
+ CLUTTER_DEVICE_UPDATE_IGNORE_CACHE |
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING,
entry->coords,
CLUTTER_CURRENT_TIME);
@@ -3269,6 +3274,7 @@ on_device_actor_destroyed (ClutterActor *actor,
* trigger a repick here.
*/
entry->current_actor = NULL;
+ g_clear_pointer (&entry->clear_area, cairo_region_destroy);
}
static void
@@ -3288,6 +3294,8 @@ free_pointer_device_entry (PointerDeviceEntry *entry)
_clutter_actor_set_has_pointer (actor, FALSE);
}
+ g_clear_pointer (&entry->clear_area, cairo_region_destroy);
+
g_free (entry);
}
@@ -3296,7 +3304,8 @@ clutter_stage_update_device_entry (ClutterStage *self,
ClutterInputDevice *device,
ClutterEventSequence *sequence,
graphene_point_t coords,
- ClutterActor *actor)
+ ClutterActor *actor,
+ cairo_region_t *clear_area)
{
ClutterStagePrivate *priv = self->priv;
PointerDeviceEntry *entry = NULL;
@@ -3352,6 +3361,10 @@ clutter_stage_update_device_entry (ClutterStage *self,
_clutter_actor_set_has_pointer (actor, TRUE);
}
}
+
+ g_clear_pointer (&entry->clear_area, cairo_region_destroy);
+ if (clear_area)
+ entry->clear_area = cairo_region_reference (clear_area);
}
void
@@ -3469,6 +3482,7 @@ clutter_stage_update_device (ClutterStage *stage,
graphene_point_t point,
uint32_t time_ms,
ClutterActor *new_actor,
+ cairo_region_t *clear_area,
gboolean emit_crossing)
{
ClutterInputDeviceType device_type;
@@ -3486,7 +3500,8 @@ clutter_stage_update_device (ClutterStage *stage,
clutter_stage_update_device_entry (stage,
device, sequence,
point,
- new_actor);
+ new_actor,
+ clear_area);
if (device_actor_changed)
{
@@ -3527,11 +3542,38 @@ clutter_stage_repick_device (ClutterStage *stage,
clutter_stage_pick_and_update_device (stage,
device,
NULL,
+ CLUTTER_DEVICE_UPDATE_IGNORE_CACHE |
CLUTTER_DEVICE_UPDATE_EMIT_CROSSING,
point,
CLUTTER_CURRENT_TIME);
}
+static gboolean
+clutter_stage_check_in_clear_area (ClutterStage *stage,
+ ClutterInputDevice *device,
+ ClutterEventSequence *sequence,
+ graphene_point_t point)
+{
+ ClutterStagePrivate *priv = stage->priv;
+ PointerDeviceEntry *entry = NULL;
+
+ g_return_val_if_fail (CLUTTER_IS_STAGE (stage), FALSE);
+ g_return_val_if_fail (device != NULL, FALSE);
+
+ if (sequence != NULL)
+ entry = g_hash_table_lookup (priv->touch_sequences, sequence);
+ else
+ entry = g_hash_table_lookup (priv->pointer_devices, device);
+
+ if (!entry)
+ return FALSE;
+ if (!entry->clear_area)
+ return FALSE;
+
+ return cairo_region_contains_point (entry->clear_area,
+ point.x, point.y);
+}
+
ClutterActor *
clutter_stage_pick_and_update_device (ClutterStage *stage,
ClutterInputDevice *device,
@@ -3541,11 +3583,20 @@ clutter_stage_pick_and_update_device (ClutterStage *stage,
uint32_t time_ms)
{
ClutterActor *new_actor;
+ cairo_region_t *clear_area = NULL;
+
+ if ((flags & CLUTTER_DEVICE_UPDATE_IGNORE_CACHE) == 0)
+ {
+ if (clutter_stage_check_in_clear_area (stage, device,
+ sequence, point))
+ return clutter_stage_get_device_actor (stage, device, sequence);
+ }
new_actor = _clutter_stage_do_pick (stage,
point.x,
point.y,
- CLUTTER_PICK_REACTIVE);
+ CLUTTER_PICK_REACTIVE,
+ &clear_area);
/* Picking should never fail, but if it does, we bail out here */
g_return_val_if_fail (new_actor != NULL, NULL);
@@ -3555,7 +3606,10 @@ clutter_stage_pick_and_update_device (ClutterStage *stage,
point,
time_ms,
new_actor,
+ clear_area,
!!(flags & CLUTTER_DEVICE_UPDATE_EMIT_CROSSING));
+ g_clear_pointer (&clear_area, cairo_region_destroy);
+
return new_actor;
}
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