forked from AuroraMiddleware/gtk
1db87c897f
Add an API to start or stop continually updating the frame clock. This is a slight convenience for applcations and avoids the problem of getting one more frame run after an animation stops, but the primary motivation for this is because it looks like we might have to use timeBeginPeriod()/timeEndPeriod() on Windows to get reasonably accurate timing, and for that we'll need to know if there is an animation running. https://bugzilla.gnome.org/show_bug.cgi?id=693934
102 lines
3.0 KiB
C
102 lines
3.0 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2010. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/* Uninstalled header, internal to GDK */
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#ifndef __GDK_FRAME_CLOCK_PRIVATE_H__
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#define __GDK_FRAME_CLOCK_PRIVATE_H__
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#include <gdk/gdkframeclock.h>
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G_BEGIN_DECLS
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struct _GdkFrameClock
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{
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GObject parent_instance;
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/*< private >*/
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GdkFrameClockPrivate *priv;
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};
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struct _GdkFrameClockClass
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{
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GObjectClass parent_class;
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gint64 (* get_frame_time) (GdkFrameClock *clock);
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void (* request_phase) (GdkFrameClock *clock,
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GdkFrameClockPhase phase);
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void (* begin_updating) (GdkFrameClock *clock);
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void (* end_updating) (GdkFrameClock *clock);
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void (* freeze) (GdkFrameClock *clock);
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void (* thaw) (GdkFrameClock *clock);
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/* signals */
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/* void (* flush_events) (GdkFrameClock *clock); */
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/* void (* before_paint) (GdkFrameClock *clock); */
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/* void (* update) (GdkFrameClock *clock); */
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/* void (* layout) (GdkFrameClock *clock); */
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/* void (* paint) (GdkFrameClock *clock); */
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/* void (* after_paint) (GdkFrameClock *clock); */
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/* void (* resume_events) (GdkFrameClock *clock); */
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};
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struct _GdkFrameTimings
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{
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guint ref_count;
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gint64 frame_counter;
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guint64 cookie;
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gint64 frame_time;
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gint64 drawn_time;
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gint64 presentation_time;
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gint64 refresh_interval;
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gint64 predicted_presentation_time;
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#ifdef G_ENABLE_DEBUG
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gint64 layout_start_time;
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gint64 paint_start_time;
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gint64 frame_end_time;
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#endif /* G_ENABLE_DEBUG */
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guint complete : 1;
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guint slept_before : 1;
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};
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void _gdk_frame_clock_freeze (GdkFrameClock *clock);
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void _gdk_frame_clock_thaw (GdkFrameClock *clock);
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void _gdk_frame_clock_begin_frame (GdkFrameClock *clock);
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void _gdk_frame_clock_debug_print_timings (GdkFrameClock *clock,
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GdkFrameTimings *timings);
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GdkFrameTimings *_gdk_frame_timings_new (gint64 frame_counter);
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G_END_DECLS
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#endif /* __GDK_FRAME_CLOCK_PRIVATE_H__ */
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