gtk2/gdk/x11/gdksurface-x11.h
Ray Strode 972134abe4 x11: Defer _NET_WM_FRAME_DRAWN update until frame usable by compositor
With the vendor provided Nvidia driver there is a small window of time
after drawing to a GL surface before the updates to that surface
can be used by the compositor.

Drawing is already coordinated with the compositor through the frame
synchronization protocol detailed here:

https://fishsoup.net/misc/wm-spec-synchronization.html

Unfortunately, at the moment, GdkX11Surface tells the compositor the
frame is ready immediately after drawing to the surface, not later,
when it's consumable by the compositor.

This commit defers announcing the frame as ready until it's consumable
by the compositor. It does this by listening for the X server to announce
damage events associated with the frame drawing.  It tries to find the
right damage event by waiting until fence placed at buffer swap time
signals.
2020-06-05 10:01:13 -04:00

194 lines
5.8 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GDK_X11_SURFACE__
#define __GDK_X11_SURFACE__
#include "gdksurfaceprivate.h"
#include "gdkx11surface.h"
#include "gdkinternals.h"
#include <X11/Xlib.h>
#ifdef HAVE_XSYNC
#include <X11/Xlib.h>
#include <X11/extensions/sync.h>
#endif
G_BEGIN_DECLS
typedef struct _GdkToplevelX11 GdkToplevelX11;
typedef struct _GdkXPositionInfo GdkXPositionInfo;
struct _GdkX11Surface
{
GdkSurface parent_instance;
Window xid;
GdkToplevelX11 *toplevel; /* Toplevel-specific information */
GdkCursor *cursor;
guint no_bg : 1; /* Set when the window background is temporarily
* unset during resizing and scaling */
guint override_redirect : 1;
guint frame_clock_connected : 1;
guint frame_sync_enabled : 1;
guint tracking_damage: 1;
gint surface_scale;
/* Width and height not divided by surface_scale - this matters in the
* corner-case where the window manager assigns us a size that isn't
* a multiple of surface_scale - for example for a maximized window
* with an odd-sized title-bar.
*/
gint unscaled_width;
gint unscaled_height;
cairo_surface_t *cairo_surface;
int abs_x;
int abs_y;
guint64 map_time;
GList *surface_is_on_monitor;
};
struct _GdkX11SurfaceClass
{
GdkSurfaceClass parent_class;
};
struct _GdkToplevelX11
{
/* Set if the window, or any descendent of it, is the server's focus window
*/
guint has_focus_window : 1;
/* Set if window->has_focus_window and the focus isn't grabbed elsewhere.
*/
guint has_focus : 1;
/* Set if the pointer is inside this window. (This is needed for
* for focus tracking)
*/
guint has_pointer : 1;
/* Set if the window is a descendent of the focus window and the pointer is
* inside it. (This is the case where the window will receive keystroke
* events even window->has_focus_window is FALSE)
*/
guint has_pointer_focus : 1;
/* Set if we are requesting these hints */
guint skip_taskbar_hint : 1;
guint skip_pager_hint : 1;
guint urgency_hint : 1;
guint on_all_desktops : 1; /* _NET_WM_STICKY == 0xFFFFFFFF */
guint have_maxvert : 1; /* _NET_WM_STATE_MAXIMIZED_VERT */
guint have_maxhorz : 1; /* _NET_WM_STATE_MAXIMIZED_HORZ */
guint have_fullscreen : 1; /* _NET_WM_STATE_FULLSCREEN */
guint have_hidden : 1; /* _NET_WM_STATE_HIDDEN */
guint is_leader : 1;
/* Set if the WM is presenting us as focused, i.e. with active decorations
*/
guint have_focused : 1;
guint in_frame : 1;
/* If we're waiting for damage from the X server after painting a frame */
guint frame_still_painting : 1;
/* If we're expecting a response from the compositor after painting a frame */
guint frame_pending : 1;
/* Whether pending_counter_value/configure_counter_value are updates
* to the extended update counter */
guint pending_counter_value_is_extended : 1;
guint configure_counter_value_is_extended : 1;
gulong map_serial; /* Serial of last transition from unmapped */
cairo_surface_t *icon_pixmap;
cairo_surface_t *icon_mask;
GdkSurface *group_leader;
/* Time of most recent user interaction. */
gulong user_time;
/* We use an extra X window for toplevel windows that we XSetInputFocus()
* to in order to avoid getting keyboard events redirected to subwindows
* that might not even be part of this app
*/
Window focus_window;
GdkSurfaceHints last_geometry_hints_mask;
GdkGeometry last_geometry_hints;
/* Constrained edge information */
guint edge_constraints;
#ifdef HAVE_XSYNC
XID update_counter;
XID extended_update_counter;
gint64 pending_counter_value; /* latest _NET_WM_SYNC_REQUEST value received */
gint64 configure_counter_value; /* Latest _NET_WM_SYNC_REQUEST value received
* where we have also seen the corresponding
* ConfigureNotify
*/
gint64 current_counter_value;
/* After a _NET_WM_FRAME_DRAWN message, this is the soonest that we think
* frame after will be presented */
gint64 throttled_presentation_time;
#endif
};
GdkToplevelX11 *_gdk_x11_surface_get_toplevel (GdkSurface *window);
GdkCursor *_gdk_x11_surface_get_cursor (GdkSurface *window);
void _gdk_x11_surface_update_size (GdkX11Surface *impl);
void _gdk_x11_surface_set_surface_scale (GdkSurface *window,
int scale);
void gdk_x11_surface_pre_damage (GdkSurface *surface);
void gdk_x11_surface_move (GdkSurface *surface,
gint x,
gint y);
void gdk_x11_surface_check_monitor (GdkSurface *surface,
GdkMonitor *monitor);
G_END_DECLS
#endif /* __GDK_X11_SURFACE__ */