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clutter/stage-view: Have each stage view create its own frame clock

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The frame clock is meant to eventually drive the painting of the view,
in contrast to the master frame clock painting every view on the stage.
Right now it's a useless place holder.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1285
This commit is contained in:
Jonas Ådahl 2020-05-22 22:57:39 +02:00
parent c00a8e98a3
commit 2e358f3c43
2 changed files with 45 additions and 0 deletions
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3
clutter/clutter/clutter-stage-view-private.h
View File

@ -19,6 +19,7 @@
#define __CLUTTER_STAGE_VIEW_PRIVATE_H__
#include "clutter/clutter-stage-view.h"
#include "clutter/clutter-types.h"
void clutter_stage_view_after_paint (ClutterStageView *view,
cairo_region_t *redraw_clip);
@ -62,4 +63,6 @@ void clutter_stage_view_transform_rect_to_onscreen (ClutterStageView
int dst_height,
cairo_rectangle_int_t *dst_rect);
ClutterFrameClock * clutter_stage_view_get_frame_clock (ClutterStageView *view);
#endif /* __CLUTTER_STAGE_VIEW_PRIVATE_H__ */

42
clutter/clutter/clutter-stage-view.c
View File

@ -24,6 +24,7 @@
#include <math.h>
#include "clutter/clutter-damage-history.h"
#include "clutter/clutter-frame-clock.h"
#include "clutter/clutter-private.h"
#include "clutter/clutter-mutter.h"
#include "cogl/cogl.h"
@ -76,6 +77,7 @@ typedef struct _ClutterStageViewPrivate
cairo_region_t *redraw_clip;
float refresh_rate;
ClutterFrameClock *frame_clock;
guint dirty_viewport : 1;
guint dirty_projection : 1;
@ -999,6 +1001,41 @@ clutter_stage_view_take_scanout (ClutterStageView *view)
return g_steal_pointer (&priv->next_scanout);
}
ClutterFrameClock *
clutter_stage_view_get_frame_clock (ClutterStageView *view)
{
ClutterStageViewPrivate *priv =
clutter_stage_view_get_instance_private (view);
return priv->frame_clock;
}
static void
handle_frame_clock_before_frame (ClutterFrameClock *frame_clock,
int64_t frame_count,
gpointer user_data)
{
ClutterStageView *view = user_data;
ClutterStageViewPrivate *priv =
clutter_stage_view_get_instance_private (view);
_clutter_stage_process_queued_events (priv->stage);
}
static ClutterFrameResult
handle_frame_clock_frame (ClutterFrameClock *frame_clock,
int64_t frame_count,
int64_t time_us,
gpointer user_data)
{
return CLUTTER_FRAME_RESULT_IDLE;
}
static const ClutterFrameListenerIface frame_clock_listener_iface = {
.before_frame = handle_frame_clock_before_frame,
.frame = handle_frame_clock_frame,
};
static void
sanity_check_framebuffer (ClutterStageView *view)
{
@ -1122,6 +1159,10 @@ clutter_stage_view_constructed (GObject *object)
if (priv->use_shadowfb)
init_shadowfb (view);
priv->frame_clock = clutter_frame_clock_new (priv->refresh_rate,
&frame_clock_listener_iface,
view);
G_OBJECT_CLASS (clutter_stage_view_parent_class)->constructed (object);
}
@ -1148,6 +1189,7 @@ clutter_stage_view_dispose (GObject *object)
g_clear_pointer (&priv->offscreen, cogl_object_unref);
g_clear_pointer (&priv->offscreen_pipeline, cogl_object_unref);
g_clear_pointer (&priv->redraw_clip, cairo_region_destroy);
g_clear_object (&priv->frame_clock);
G_OBJECT_CLASS (clutter_stage_view_parent_class)->dispose (object);
}