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8df6e2cdaf
Keep at least 1 second of frame timings. This is necessary for 2 reasons - a real one and a fun one. First, with the difference in monitor refresh rates, we can have 48Hz latops as well as 240Hz high refresh rate monitors. That's a factor of 4, and tracking frame rates in both situations reliably is kind of hard - either we track over too many frames and the fps take a lot of time to adjust, or we track too little time and the fps fluctuate wildly. Second, when benchmarking with GDK_DEBUG=no-vsync with a somewhat fast renderer (*cough*Vulkan*cough*) frame rates can go into insane dimensions and only very few frames are actually getting presentation times reported. So to report accurate frame rates in those cases, we need a *very* large history that can be 1000s of times larger than the usual history. And that's just a waste for normal usage.
130 lines
4.2 KiB
C
130 lines
4.2 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, see <http://www.gnu.org/licenses/>.
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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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#pragma once
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#include <gdk/gdkframeclock.h>
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#include <gdk/gdkprofilerprivate.h>
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G_BEGIN_DECLS
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/**
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* GdkFrameClock:
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* @parent_instance: The parent instance.
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*/
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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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/**
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* GdkFrameClockClass:
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* @parent_class: The parent class.
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* @get_frame_time: Gets the time that should currently be used for
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* animations.
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* @request_phase: Asks the frame clock to run a particular phase.
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* @begin_updating: Starts updates for an animation.
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* @end_updating: Stops updates for an animation.
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* @freeze:
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* @thaw:
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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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/*< public >*/
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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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/*< private >*/
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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 smoothed_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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gint64 layout_start_time;
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gint64 paint_start_time;
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gint64 frame_end_time;
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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_inhibit_freeze (GdkFrameClock *clock);
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void _gdk_frame_clock_uninhibit_freeze (GdkFrameClock *clock);
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void _gdk_frame_clock_begin_frame (GdkFrameClock *clock,
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gint64 monotonic_time);
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void _gdk_frame_clock_debug_print_timings (GdkFrameClock *clock,
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GdkFrameTimings *timings);
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void _gdk_frame_clock_add_timings_to_profiler (GdkFrameClock *frame_clock,
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GdkFrameTimings *timings);
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GdkFrameTimings *_gdk_frame_timings_new (gint64 frame_counter);
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gboolean _gdk_frame_timings_steal (GdkFrameTimings *timings,
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gint64 frame_counter);
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void _gdk_frame_clock_emit_flush_events (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_before_paint (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_update (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_layout (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_paint (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_after_paint (GdkFrameClock *frame_clock);
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void _gdk_frame_clock_emit_resume_events (GdkFrameClock *frame_clock);
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G_END_DECLS
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