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core: Add private API to override compositor configuration

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Add private API for overriding the compositor configuration, i.e. the
compositor type (X11 WM or Wayland compositor) and backend type. This
will make it possible to add a special test backend used by src/tests/.

https://bugzilla.gnome.org/show_bug.cgi?id=777732
This commit is contained in:
Jonas Ådahl 2016-12-05 18:31:40 +08:00
parent bc5077f623
commit d3920ddb67
5 changed files with 71 additions and 44 deletions
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2
src/backends/meta-backend-private.h
View file

@ -97,7 +97,7 @@ struct _MetaBackendClass
};
void meta_init_backend (MetaBackendType backend_type);
void meta_init_backend (GType backend_gtype);
ClutterBackend * meta_backend_get_clutter_backend (MetaBackend *backend);

21
src/backends/meta-backend.c
View file

@ -796,31 +796,14 @@ meta_get_clutter_backend (void)
}
void
meta_init_backend (MetaBackendType backend_type)
meta_init_backend (GType backend_gtype)
{
GType type;
MetaBackend *backend;
GError *error = NULL;
switch (backend_type)
{
case META_BACKEND_TYPE_X11:
type = META_TYPE_BACKEND_X11;
break;
#ifdef HAVE_NATIVE_BACKEND
case META_BACKEND_TYPE_NATIVE:
type = META_TYPE_BACKEND_NATIVE;
break;
#endif
default:
g_assert_not_reached ();
}
/* meta_backend_init() above install the backend globally so
* so meta_get_backend() works even during initialization. */
backend = g_object_new (type, NULL);
backend = g_object_new (backend_gtype, NULL);
if (!g_initable_init (G_INITABLE (backend), NULL, &error))
{
g_warning ("Failed to create backend: %s", error->message);

34
src/core/main-private.h Normal file
View file

@ -0,0 +1,34 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2016 Red Hat, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef META_MAIN_PRIVATE_H
#define META_MAIN_PRIVATE_H
typedef enum _MetaCompositorType
{
#ifdef HAVE_WAYLAND
META_COMPOSITOR_TYPE_WAYLAND,
#endif
META_COMPOSITOR_TYPE_X11,
} MetaCompositorType;
void meta_override_compositor_configuration (MetaCompositorType compositor_type,
GType backend_gtype);
#endif /* META_MAIN_PRIVATE_H */

42
src/core/main.c
View file

@ -52,6 +52,7 @@
#include <meta/prefs.h>
#include <meta/compositor.h>
#include <meta/meta-backend.h>
#include "core/main-private.h"
#include <glib-object.h>
#include <glib-unix.h>
@ -82,10 +83,14 @@
# endif
#include "backends/meta-backend-private.h"
#include "backends/x11/meta-backend-x11.h"
#if defined(HAVE_NATIVE_BACKEND) && defined(HAVE_WAYLAND)
#ifdef HAVE_NATIVE_BACKEND
#include "backends/native/meta-backend-native.h"
#ifdef HAVE_WAYLAND
#include <systemd/sd-login.h>
#endif
#endif /* HAVE_WAYLAND */
#endif /* HAVE_NATIVE_BACKEND */
/*
* The exit code we'll return to our parent process when we eventually die.
@ -394,7 +399,7 @@ check_for_wayland_session_type (void)
static void
calculate_compositor_configuration (MetaCompositorType *compositor_type,
MetaBackendType *backend_type)
GType *backend_gtype)
{
#ifdef HAVE_WAYLAND
gboolean run_as_wayland_compositor = opt_wayland;
@ -411,12 +416,12 @@ calculate_compositor_configuration (MetaCompositorType *compositor_type,
#ifdef CLUTTER_WINDOWING_EGL
if (opt_display_server || (run_as_wayland_compositor && !opt_nested))
*backend_type = META_BACKEND_TYPE_NATIVE;
*backend_gtype = META_TYPE_BACKEND_NATIVE;
else
#endif
#endif
#endif
*backend_type = META_BACKEND_TYPE_X11;
*backend_gtype = META_TYPE_BACKEND_X11;
#ifdef HAVE_WAYLAND
if (run_as_wayland_compositor)
@ -426,6 +431,19 @@ calculate_compositor_configuration (MetaCompositorType *compositor_type,
*compositor_type = META_COMPOSITOR_TYPE_X11;
}
static gboolean _compositor_configuration_overridden = FALSE;
static MetaCompositorType _compositor_type_override;
static GType _backend_gtype_override;
void
meta_override_compositor_configuration (MetaCompositorType compositor_type,
GType backend_gtype)
{
_compositor_configuration_overridden = TRUE;
_compositor_type_override = compositor_type;
_backend_gtype_override = backend_gtype;
}
/**
* meta_init: (skip)
*
@ -438,7 +456,7 @@ meta_init (void)
struct sigaction act;
sigset_t empty_mask;
MetaCompositorType compositor_type;
MetaBackendType backend_type;
GType backend_gtype;
sigemptyset (&empty_mask);
act.sa_handler = SIG_IGN;
@ -460,7 +478,15 @@ meta_init (void)
if (g_getenv ("MUTTER_DEBUG"))
meta_set_debugging (TRUE);
calculate_compositor_configuration (&compositor_type, &backend_type);
if (_compositor_configuration_overridden)
{
compositor_type = _compositor_type_override;
backend_gtype = _backend_gtype_override;
}
else
{
calculate_compositor_configuration (&compositor_type, &backend_gtype);
}
#ifdef HAVE_WAYLAND
if (compositor_type == META_COMPOSITOR_TYPE_WAYLAND)
@ -488,7 +514,7 @@ meta_init (void)
if (!meta_is_wayland_compositor ())
meta_select_display (opt_display_name);
meta_init_backend (backend_type);
meta_init_backend (backend_gtype);
meta_clutter_init ();

16
src/core/util-private.h
View file

@ -28,22 +28,6 @@
#include <meta/util.h>
#include <glib/gi18n-lib.h>
typedef enum _MetaCompositorType
{
#ifdef HAVE_WAYLAND
META_COMPOSITOR_TYPE_WAYLAND,
#endif
META_COMPOSITOR_TYPE_X11,
} MetaCompositorType;
typedef enum _MetaBackendType
{
#ifdef HAVE_NATIVE_BACKEND
META_BACKEND_TYPE_NATIVE,
#endif
META_BACKEND_TYPE_X11,
} MetaBackendType;
void meta_set_verbose (gboolean setting);
void meta_set_debugging (gboolean setting);
void meta_set_syncing (gboolean setting);