d340c3a6dd
Don't unset the surface->buffer if the associated wl_buffer object is destroyed. The MetaWaylandBuffer doesn't really only represent a wl_buffer object, but also the data (texture) created from the given wl_buffer. Thus, for example destroying a released SHM wl_buffer should not destroy the MetaWaylandBuffer instance, because the texture may still be used. This commit also fixes a race where calc_showing would hide a window because, at the time of calculation whether it should be showing, the surface's buffer had been destroyed as described above. https://bugzilla.gnome.org/show_bug.cgi?id=762716
57 lines
2 KiB
C
57 lines
2 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2014 Endless Mobile
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Written by:
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* Jasper St. Pierre <jstpierre@mecheye.net>
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*/
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#ifndef META_WAYLAND_BUFFER_H
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#define META_WAYLAND_BUFFER_H
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#include <cogl/cogl.h>
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#include <cairo.h>
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#include <wayland-server.h>
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#include "meta-wayland-types.h"
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struct _MetaWaylandBuffer
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{
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GObject parent;
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struct wl_resource *resource;
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struct wl_signal destroy_signal;
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struct wl_listener destroy_listener;
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CoglTexture *texture;
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uint32_t use_count;
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};
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#define META_TYPE_WAYLAND_BUFFER (meta_wayland_buffer_get_type ())
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G_DECLARE_FINAL_TYPE (MetaWaylandBuffer, meta_wayland_buffer,
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META, WAYLAND_BUFFER, GObject);
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MetaWaylandBuffer * meta_wayland_buffer_from_resource (struct wl_resource *resource);
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void meta_wayland_buffer_ref_use_count (MetaWaylandBuffer *buffer);
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void meta_wayland_buffer_unref_use_count (MetaWaylandBuffer *buffer);
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CoglTexture * meta_wayland_buffer_ensure_texture (MetaWaylandBuffer *buffer);
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void meta_wayland_buffer_process_damage (MetaWaylandBuffer *buffer,
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cairo_region_t *region);
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#endif /* META_WAYLAND_BUFFER_H */
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