1
0
Fork 0
mutter-performance-source/src/backends/meta-cursor-renderer.h
Olivier Fourdan 67917db45f wayland: Use cursor position in logical monitor
When using two monitors size by side with different scales, once the
cursor moves from one output to another one, its size changes based on
the scale of the given output.

Changing the size of the cursor can cause the cursor area to change
output again if the hotspot is not exactly at the top left corner of the
area, causing the texture of the cursor to change, which will trigger
another output change, so on and so forth causing continuous surface
enter/leave event which flood the clients and eventually kill them.

Change the logic to use only the actual cursor position to determine if
its on the given logical monitor, so that it remains immune to scale
changes induced by output scale differences.

Closes: https://gitlab.gnome.org/GNOME/mutter/issues/83
2018-03-23 15:12:37 +01:00

86 lines
3.4 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2014 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#ifndef META_CURSOR_RENDERER_H
#define META_CURSOR_RENDERER_H
#include <glib-object.h>
#include <X11/Xcursor/Xcursor.h>
#ifdef HAVE_WAYLAND
#include <wayland-server.h>
#endif
#include <meta/screen.h>
#include "meta-cursor.h"
#define META_TYPE_CURSOR_RENDERER (meta_cursor_renderer_get_type ())
G_DECLARE_DERIVABLE_TYPE (MetaCursorRenderer, meta_cursor_renderer,
META, CURSOR_RENDERER, GObject);
struct _MetaCursorRendererClass
{
GObjectClass parent_class;
gboolean (* update_cursor) (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite);
#ifdef HAVE_WAYLAND
void (* realize_cursor_from_wl_buffer) (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite,
struct wl_resource *buffer);
#endif
void (* realize_cursor_from_xcursor) (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite,
XcursorImage *xc_image);
};
MetaCursorRenderer * meta_cursor_renderer_new (void);
void meta_cursor_renderer_set_cursor (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite);
void meta_cursor_renderer_set_position (MetaCursorRenderer *renderer,
float x,
float y);
ClutterPoint meta_cursor_renderer_get_position (MetaCursorRenderer *renderer);
void meta_cursor_renderer_force_update (MetaCursorRenderer *renderer);
MetaCursorSprite * meta_cursor_renderer_get_cursor (MetaCursorRenderer *renderer);
ClutterRect meta_cursor_renderer_calculate_rect (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite);
#ifdef HAVE_WAYLAND
void meta_cursor_renderer_realize_cursor_from_wl_buffer (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite,
struct wl_resource *buffer);
#endif
void meta_cursor_renderer_realize_cursor_from_xcursor (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite,
XcursorImage *xc_image);
void meta_cursor_renderer_emit_painted (MetaCursorRenderer *renderer,
MetaCursorSprite *cursor_sprite);
#endif /* META_CURSOR_RENDERER_H */