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inspector: Use gdk_frame_clock_get_fps

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This commit is contained in:
Matthias Clasen 2020-09-13 23:32:33 -04:00
parent b166999683
commit c462f35a5e
1 changed files with 1 additions and 31 deletions
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32
gtk/inspector/fpsoverlay.c
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@ -98,42 +98,12 @@ static double
gtk_fps_overlay_get_fps (GtkWidget *widget) gtk_fps_overlay_get_fps (GtkWidget *widget)
{ {
GdkFrameClock *frame_clock; GdkFrameClock *frame_clock;
GdkFrameTimings *start, *end;
gint64 start_counter, end_counter;
gint64 start_timestamp, end_timestamp;
gint64 interval;
frame_clock = gtk_widget_get_frame_clock (widget); frame_clock = gtk_widget_get_frame_clock (widget);
if (frame_clock == NULL) if (frame_clock == NULL)
return 0.0; return 0.0;
start_counter = gdk_frame_clock_get_history_start (frame_clock); return gdk_frame_clock_get_fps (frame_clock);
end_counter = gdk_frame_clock_get_frame_counter (frame_clock);
start = gdk_frame_clock_get_timings (frame_clock, start_counter);
for (end = gdk_frame_clock_get_timings (frame_clock, end_counter);
end_counter > start_counter && end != NULL && !gdk_frame_timings_get_complete (end);
end = gdk_frame_clock_get_timings (frame_clock, end_counter))
end_counter--;
if (end_counter - start_counter < 4)
return 0.0;
start_timestamp = gdk_frame_timings_get_presentation_time (start);
end_timestamp = gdk_frame_timings_get_presentation_time (end);
if (start_timestamp == 0 || end_timestamp == 0)
{
start_timestamp = gdk_frame_timings_get_frame_time (start);
end_timestamp = gdk_frame_timings_get_frame_time (end);
}
interval = gdk_frame_timings_get_refresh_interval (end);
if (interval == 0)
{
interval = guess_refresh_interval (frame_clock);
if (interval == 0)
return 0.0;
}
return ((double) end_counter - start_counter) * G_USEC_PER_SEC / (end_timestamp - start_timestamp);
} }
static gboolean static gboolean