mutter/clutter/wayland/clutter-stage-wayland.c
Rob Bradford 2b8fcfd75b wayland: When resizing only trigger a redraw if the stage has been shown
This is necessary to avoid a deadlock with the compositor. When setting
a stage size before the stage was shown this would trigger a redraw
inside clutter_stage_wayland_resize. This redraw would result
in a call into eglSwapBuffers which would attach a buffer to the surface
and commit. Unfortunately this would happen before the role for the
surface was set. This would result in the compositor not relaying to the
client that the desired frame was shown.

With this change the call to wl_shell_surface_set_toplevel is always
made before the first redraw.

https://bugzilla.gnome.org/show_bug.cgi?id=704457
2013-08-12 19:13:57 +01:00

348 lines
11 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010 Intel Corporation.
*
* 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/>.
* Authors:
* Matthew Allum
* Robert Bragg
* Kristian Høgsberg
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include "clutter-wayland.h"
#include "clutter-stage-wayland.h"
#include "clutter-backend-wayland.h"
#include "clutter-backend-wayland-priv.h"
#include "clutter-stage-window.h"
#include "clutter-stage-private.h"
#include "clutter-event-private.h"
#include "clutter-wayland.h"
#include <cogl/cogl.h>
#include <cogl/cogl-wayland-client.h>
static ClutterStageWindowIface *clutter_stage_window_parent_iface = NULL;
static void clutter_stage_window_iface_init (ClutterStageWindowIface *iface);
#define clutter_stage_wayland_get_type _clutter_stage_wayland_get_type
G_DEFINE_TYPE_WITH_CODE (ClutterStageWayland,
clutter_stage_wayland,
CLUTTER_TYPE_STAGE_COGL,
G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_STAGE_WINDOW,
clutter_stage_window_iface_init));
static void
handle_ping (void *data,
struct wl_shell_surface *shell_surface,
uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
handle_configure (void *data,
struct wl_shell_surface *shell_surface,
uint32_t edges,
int32_t width,
int32_t height)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL(data);
CoglFramebuffer *fb = COGL_FRAMEBUFFER (stage_cogl->onscreen);
if (cogl_framebuffer_get_width (fb) != width ||
cogl_framebuffer_get_height (fb) != height)
clutter_actor_queue_relayout (CLUTTER_ACTOR (stage_cogl->wrapper));
clutter_actor_set_size (CLUTTER_ACTOR (stage_cogl->wrapper),
width, height);
/* the resize process is complete, so we can ask the stage
* to set up the GL viewport with the new size
*/
clutter_stage_ensure_viewport (stage_cogl->wrapper);
}
static void
handle_popup_done (void *data,
struct wl_shell_surface *shell_surface)
{
/* XXX: Fill me in. */
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done,
};
static void
clutter_stage_wayland_set_fullscreen (ClutterStageWindow *stage_window,
gboolean fullscreen);
static gboolean
clutter_stage_wayland_realize (ClutterStageWindow *stage_window)
{
ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
struct wl_surface *wl_surface;
struct wl_shell_surface *wl_shell_surface;
clutter_stage_window_parent_iface->realize (stage_window);
wl_surface = cogl_wayland_onscreen_get_surface (stage_cogl->onscreen);
wl_surface_set_user_data (wl_surface, stage_wayland);
stage_wayland->wayland_surface = wl_surface;
if (!stage_wayland->foreign_wl_surface)
{
wl_shell_surface =
cogl_wayland_onscreen_get_shell_surface (stage_cogl->onscreen);
wl_shell_surface_add_listener (wl_shell_surface,
&shell_surface_listener,
stage_wayland);
stage_wayland->wayland_shell_surface = wl_shell_surface;
}
if (stage_wayland->fullscreen)
clutter_stage_wayland_set_fullscreen (stage_window, TRUE);
return TRUE;
}
static void
clutter_stage_wayland_show (ClutterStageWindow *stage_window,
gboolean do_raise)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
clutter_stage_window_parent_iface->show (stage_window, do_raise);
if (stage_wayland->wayland_shell_surface)
wl_shell_surface_set_toplevel (stage_wayland->wayland_shell_surface);
stage_wayland->shown = TRUE;
/* We need to queue a redraw after the stage is shown because all of
* the other queue redraws up to this point will have been ignored
* because the actor was not visible. The other backends do not need
* to do this because they will get expose events at some point, but
* that does not happen for Wayland. */
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage_cogl->wrapper));
}
static void
clutter_stage_wayland_set_fullscreen (ClutterStageWindow *stage_window,
gboolean fullscreen)
{
ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend);
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
ClutterActor *stage = _clutter_stage_window_get_wrapper (stage_window);
stage_wayland->fullscreen = fullscreen;
if (!stage_wayland->wayland_shell_surface)
return;
if (fullscreen)
{
_clutter_stage_update_state (stage_cogl->wrapper,
0,
CLUTTER_STAGE_STATE_FULLSCREEN);
/* FIXME: In future versions of the Wayland protocol we'll get a
* configure with the dimensions we can use - but for now we have to
* use the dimensions from the output's mode
*/
clutter_actor_set_size (stage,
backend_wayland->output_width,
backend_wayland->output_height);
/* FIXME: And we must force a redraw so that new sized buffer gets
* attached
*/
_clutter_stage_window_redraw (stage_window);
wl_shell_surface_set_fullscreen (stage_wayland->wayland_shell_surface,
WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,
0,
NULL);
}
else
{
_clutter_stage_update_state (stage_cogl->wrapper,
CLUTTER_STAGE_STATE_FULLSCREEN,
0);
wl_shell_surface_set_toplevel (stage_wayland->wayland_shell_surface);
}
}
static void
clutter_stage_wayland_resize (ClutterStageWindow *stage_window,
gint width,
gint height)
{
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterStageWayland *stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
/* Resize preserving top left */
if (stage_cogl->onscreen)
{
cogl_wayland_onscreen_resize (stage_cogl->onscreen, width, height, 0, 0);
/* Only trigger a redraw if the stage window has been shown */
if (stage_wayland->shown)
_clutter_stage_window_redraw (stage_window);
}
}
static void
clutter_stage_wayland_init (ClutterStageWayland *stage_wayland)
{
}
static void
clutter_stage_window_iface_init (ClutterStageWindowIface *iface)
{
clutter_stage_window_parent_iface = g_type_interface_peek_parent (iface);
iface->realize = clutter_stage_wayland_realize;
iface->show = clutter_stage_wayland_show;
iface->set_fullscreen = clutter_stage_wayland_set_fullscreen;
iface->resize = clutter_stage_wayland_resize;
}
static void
clutter_stage_wayland_class_init (ClutterStageWaylandClass *klass)
{
}
/**
* clutter_wayland_stage_get_wl_shell_surface: (skip)
* @stage: a #ClutterStage
*
* Access the underlying data structure representing the shell surface that is
* backing the #ClutterStage
*
* Note: this function can only be called when running on the Wayland
* platform. Calling this function at any other time will return %NULL.
*
* Returns: (transfer none): the Wayland shell surface associated with
* @stage
*
*
*/
struct wl_shell_surface *
clutter_wayland_stage_get_wl_shell_surface (ClutterStage *stage)
{
ClutterStageWindow *stage_window = _clutter_stage_get_window (stage);
ClutterStageWayland *stage_wayland;
if (!CLUTTER_IS_STAGE_WAYLAND (stage_window))
return NULL;
stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
return stage_wayland->wayland_shell_surface;
}
/**
* clutter_wayland_stage_get_wl_surface: (skip)
* @stage: a #ClutterStage
*
* Access the underlying data structure representing the surface that is
* backing the #ClutterStage
*
* Note: this function can only be called when running on the Wayland
* platform. Calling this function at any other time will return %NULL.
*
* Returns: (transfer none): the Wayland surface associated with @stage
*
* Since: 1.10
*/
struct wl_surface *
clutter_wayland_stage_get_wl_surface (ClutterStage *stage)
{
ClutterStageWindow *stage_window = _clutter_stage_get_window (stage);
ClutterStageWayland *stage_wayland;
if (!CLUTTER_IS_STAGE_WAYLAND (stage_window))
return NULL;
stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
return stage_wayland->wayland_surface;
}
/**
* clutter_wayland_stage_set_wl_surface:
* @stage: a #ClutterStage
* @surface: A Wayland surface to associate with the @stage.
*
* Allows you to explicitly provide an existing Wayland surface to associate
* with @stage, preventing Cogl from allocating a surface and shell surface for
* the stage automatically.
*
* This function must be called before @stage is shown.
*
* Note: this function can only be called when running on the Wayland
* platform. Calling this function at any other time has no effect.
*
* Since: 1.16
*/
void
clutter_wayland_stage_set_wl_surface (ClutterStage *stage,
struct wl_surface *surface)
{
ClutterStageWindow *stage_window = _clutter_stage_get_window (stage);
ClutterStageWayland *stage_wayland;
ClutterStageCogl *stage_cogl;
if (!CLUTTER_IS_STAGE_WAYLAND (stage_window))
return;
stage_cogl = CLUTTER_STAGE_COGL (stage_window);
if (stage_cogl->onscreen == NULL)
{
ClutterBackend *backend = clutter_get_default_backend ();
/* Use the same default dimensions as clutter_stage_cogl_realize() */
stage_cogl->onscreen = cogl_onscreen_new (backend->cogl_context,
800, 600);
cogl_wayland_onscreen_set_foreign_surface (stage_cogl->onscreen,
surface);
stage_wayland = CLUTTER_STAGE_WAYLAND (stage_window);
stage_wayland->foreign_wl_surface = TRUE;
}
else
g_warning (G_STRLOC ": cannot set foreign surface for stage");
}