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d29c8e290c
The frame clock owner should be able to explicitly destroy (i.e. make defunct) a frame clock, e.g. when a stage view is destructed. This is so that other objects can keep reference to its without it being left around even after stopped being usable. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1285
88 lines
3.1 KiB
C
88 lines
3.1 KiB
C
/*
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* Copyright (C) 2019 Red Hat Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CLUTTER_FRAME_CLOCK_H
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#define CLUTTER_FRAME_CLOCK_H
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#include <glib.h>
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#include <glib-object.h>
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#include <stdint.h>
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#include "clutter/clutter-types.h"
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typedef enum _ClutterFrameResult
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{
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CLUTTER_FRAME_RESULT_PENDING_PRESENTED,
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CLUTTER_FRAME_RESULT_IDLE,
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} ClutterFrameResult;
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#define CLUTTER_TYPE_FRAME_CLOCK (clutter_frame_clock_get_type ())
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CLUTTER_EXPORT
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G_DECLARE_FINAL_TYPE (ClutterFrameClock, clutter_frame_clock,
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CLUTTER, FRAME_CLOCK,
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GObject)
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typedef struct _ClutterFrameListenerIface
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{
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void (* before_frame) (ClutterFrameClock *frame_clock,
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int64_t frame_count,
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gpointer user_data);
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ClutterFrameResult (* frame) (ClutterFrameClock *frame_clock,
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int64_t frame_count,
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int64_t time_us,
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gpointer user_data);
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} ClutterFrameListenerIface;
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CLUTTER_EXPORT
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ClutterFrameClock * clutter_frame_clock_new (float refresh_rate,
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const ClutterFrameListenerIface *iface,
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gpointer user_data);
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CLUTTER_EXPORT
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void clutter_frame_clock_destroy (ClutterFrameClock *frame_clock);
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CLUTTER_EXPORT
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void clutter_frame_clock_notify_presented (ClutterFrameClock *frame_clock,
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ClutterFrameInfo *frame_info);
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CLUTTER_EXPORT
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void clutter_frame_clock_schedule_update (ClutterFrameClock *frame_clock);
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CLUTTER_EXPORT
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void clutter_frame_clock_schedule_update_now (ClutterFrameClock *frame_clock);
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CLUTTER_EXPORT
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void clutter_frame_clock_inhibit (ClutterFrameClock *frame_clock);
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CLUTTER_EXPORT
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void clutter_frame_clock_uninhibit (ClutterFrameClock *frame_clock);
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void clutter_frame_clock_add_timeline (ClutterFrameClock *frame_clock,
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ClutterTimeline *timeline);
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void clutter_frame_clock_remove_timeline (ClutterFrameClock *frame_clock,
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ClutterTimeline *timeline);
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CLUTTER_EXPORT
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float clutter_frame_clock_get_refresh_rate (ClutterFrameClock *frame_clock);
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#endif /* CLUTTER_FRAME_CLOCK_H */
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