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84f454fd4f
In constrast to notify_presented(), notify_ready() also returns the state machine to the idle state, but without providing new frame information, as no frame was actually presented. This will happen for example with the simple KMS impl backend will do a cursor movement, which will trigger a symbolic "page flip" reply in order to emulate atomic KMS behavior. When this happen, we should just try to reschedule again. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
94 lines
3.2 KiB
C
94 lines
3.2 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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/**
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* ClutterFrameListenerIface: (skip)
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*/
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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_notify_ready (ClutterFrameClock *frame_clock);
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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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