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mutter/clutter/wayland/clutter-backend-wayland.c
Daniel Stone dfb145988e wayland: Only include Wayland headers in private 
As wayland-client.h and wayland-server.h can't be included together,
split the Wayland backend file into clutter-backend-wayland.h, which
only defines the types, and clutter-backend-wayland-priv.h, which
actually uses the Wayland client types.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>

https://bugzilla.gnome.org/show_bug.cgi?id=692851
2013-02-20 23:06:28 +00:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010, 2011 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 <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <errno.h>
#include "clutter-debug.h"
#include "clutter-private.h"
#include "clutter-main.h"
#include "clutter-stage-private.h"
#include "wayland/clutter-backend-wayland.h"
#include "wayland/clutter-backend-wayland-priv.h"
#include "wayland/clutter-device-manager-wayland.h"
#include "wayland/clutter-event-wayland.h"
#include "wayland/clutter-stage-wayland.h"
#include "cogl/clutter-stage-cogl.h"
#include <wayland-client.h>
#include <wayland-cursor.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <cogl/cogl.h>
#include <cogl/cogl-wayland-client.h>
#define clutter_backend_wayland_get_type _clutter_backend_wayland_get_type
G_DEFINE_TYPE (ClutterBackendWayland, clutter_backend_wayland, CLUTTER_TYPE_BACKEND);
static void clutter_backend_wayland_load_cursor (ClutterBackendWayland *backend_wayland);
static void
clutter_backend_wayland_dispose (GObject *gobject)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (gobject);
if (backend_wayland->device_manager)
{
g_object_unref (backend_wayland->device_manager);
backend_wayland->device_manager = NULL;
}
if (backend_wayland->cursor_buffer)
{
wl_buffer_destroy (backend_wayland->cursor_buffer);
backend_wayland->cursor_buffer = NULL;
}
if (backend_wayland->cursor_theme)
{
wl_cursor_theme_destroy (backend_wayland->cursor_theme);
backend_wayland->cursor_theme = NULL;
}
G_OBJECT_CLASS (clutter_backend_wayland_parent_class)->dispose (gobject);
}
static void
output_handle_mode (void *data,
struct wl_output *wl_output,
uint32_t flags,
int width,
int height,
int refresh)
{
ClutterBackendWayland *backend_wayland = data;
if (flags & WL_OUTPUT_MODE_CURRENT)
{
backend_wayland->output_width = width;
backend_wayland->output_height = height;
}
}
static void
output_handle_geometry (void *data,
struct wl_output *wl_output,
int x,
int y,
int physical_width,
int physical_height,
int subpixel,
const char *make,
const char *model,
int32_t transform)
{
}
static const struct wl_output_listener wayland_output_listener = {
output_handle_geometry,
output_handle_mode,
};
static void
registry_handle_global (void *data,
struct wl_registry *registry,
uint32_t id,
const char *interface,
uint32_t version)
{
ClutterBackendWayland *backend_wayland = data;
if (strcmp (interface, "wl_compositor") == 0)
backend_wayland->wayland_compositor =
wl_registry_bind (registry, id, &wl_compositor_interface, 1);
else if (strcmp (interface, "wl_seat") == 0)
{
ClutterDeviceManager *device_manager = backend_wayland->device_manager;
_clutter_device_manager_wayland_add_input_group (device_manager, id);
}
else if (strcmp (interface, "wl_shell") == 0)
{
backend_wayland->wayland_shell =
wl_registry_bind (registry, id, &wl_shell_interface, 1);
}
else if (strcmp (interface, "wl_shm") == 0)
{
backend_wayland->wayland_shm =
wl_registry_bind (registry, id, &wl_shm_interface, 1);
}
else if (strcmp (interface, "wl_output") == 0)
{
/* FIXME: Support multiple outputs */
backend_wayland->wayland_output =
wl_registry_bind (registry, id, &wl_output_interface, 1);
wl_output_add_listener (backend_wayland->wayland_output,
&wayland_output_listener,
backend_wayland);
}
}
static const struct wl_registry_listener wayland_registry_listener = {
registry_handle_global,
};
static gboolean
clutter_backend_wayland_post_parse (ClutterBackend *backend,
GError **error)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
/* TODO: expose environment variable/commandline option for this... */
backend_wayland->wayland_display = wl_display_connect (NULL);
if (!backend_wayland->wayland_display)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Failed to open Wayland display socket");
return FALSE;
}
backend_wayland->wayland_registry =
wl_display_get_registry (backend_wayland->wayland_display);
backend_wayland->wayland_source =
_clutter_event_source_wayland_new (backend_wayland->wayland_display);
g_source_attach (backend_wayland->wayland_source, NULL);
g_object_set (clutter_settings_get_default (), "font-dpi", 96 * 1024, NULL);
/* XXX: We require the device manager to exist as soon as we connect to the
* compositor and setup an event handler because we will immediately be
* notified of the available input devices which need to be associated with
* the device-manager.
*
* FIXME: At some point we could perhaps just collapse the
* _clutter_backend_post_parse(), and _clutter_backend_init_events()
* functions into one called something like _clutter_backend_init() which
* would allow the real backend to manage the precise order of
* initialization.
*/
backend_wayland->device_manager =
_clutter_device_manager_wayland_new (backend);
/* Set up listener so we'll catch all events. */
wl_registry_add_listener (backend_wayland->wayland_registry,
&wayland_registry_listener,
backend_wayland);
/* Wait until we have been notified about the compositor and shell objects */
while (!(backend_wayland->wayland_compositor &&
backend_wayland->wayland_shell))
wl_display_roundtrip (backend_wayland->wayland_display);
/* We need the shm object before we can create the cursor */
clutter_backend_wayland_load_cursor (backend_wayland);
return TRUE;
}
static CoglRenderer *
clutter_backend_wayland_get_renderer (ClutterBackend *backend,
GError **error)
{
ClutterBackendWayland *backend_wayland = CLUTTER_BACKEND_WAYLAND (backend);
CoglRenderer *renderer;
CLUTTER_NOTE (BACKEND, "Creating a new wayland renderer");
renderer = cogl_renderer_new ();
cogl_renderer_set_winsys_id (renderer, COGL_WINSYS_ID_EGL_WAYLAND);
cogl_wayland_renderer_set_foreign_display (renderer,
backend_wayland->wayland_display);
cogl_wayland_renderer_set_foreign_compositor (renderer,
backend_wayland->wayland_compositor);
cogl_wayland_renderer_set_foreign_shell (renderer,
backend_wayland->wayland_shell);
return renderer;
}
static CoglDisplay *
clutter_backend_wayland_get_display (ClutterBackend *backend,
CoglRenderer *renderer,
CoglSwapChain *swap_chain,
GError **error)
{
CoglOnscreenTemplate *onscreen_template = NULL;
CoglDisplay *display;
onscreen_template = cogl_onscreen_template_new (swap_chain);
/* XXX: I have some doubts that this is a good design.
* Conceptually should we be able to check an onscreen_template
* without more details about the CoglDisplay configuration?
*/
if (!cogl_renderer_check_onscreen_template (renderer,
onscreen_template,
error))
goto error;
display = cogl_display_new (renderer, onscreen_template);
return display;
error:
if (onscreen_template)
cogl_object_unref (onscreen_template);
return NULL;
}
static void
clutter_backend_wayland_class_init (ClutterBackendWaylandClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterBackendClass *backend_class = CLUTTER_BACKEND_CLASS (klass);
gobject_class->dispose = clutter_backend_wayland_dispose;
backend_class->stage_window_type = CLUTTER_TYPE_STAGE_WAYLAND;
backend_class->post_parse = clutter_backend_wayland_post_parse;
backend_class->get_renderer = clutter_backend_wayland_get_renderer;
backend_class->get_display = clutter_backend_wayland_get_display;
}
static void
clutter_backend_wayland_load_cursor (ClutterBackendWayland *backend_wayland)
{
struct wl_cursor *cursor;
backend_wayland->cursor_theme =
wl_cursor_theme_load (NULL, /* default */
32,
backend_wayland->wayland_shm);
cursor = wl_cursor_theme_get_cursor (backend_wayland->cursor_theme,
"left_ptr");
backend_wayland->cursor_buffer =
wl_cursor_image_get_buffer (cursor->images[0]);
if (backend_wayland->cursor_buffer)
{
backend_wayland->cursor_x = cursor->images[0]->hotspot_x;
backend_wayland->cursor_y = cursor->images[0]->hotspot_y;
}
backend_wayland->cursor_surface =
wl_compositor_create_surface (backend_wayland->wayland_compositor);
}
static void
clutter_backend_wayland_init (ClutterBackendWayland *backend_wayland)
{
}
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