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77ec8774a0
mutter/clutter/wayland/clutter-backend-wayland.c
Emmanuele Bassi 77ec8774a0 WARNING: Massive revert commit 
Revert all the work that happened on the master branch.

Sadly, this is the only way to merge the current development branch back
into master.

It is now abundantly clear that I merged the 1.99 branch far too soon,
and that Clutter 2.0 won't happen any time soon, if at all.

Since having the development happen on a separate branch throws a lot of
people into confusion, let's undo the clutter-1.99 → master merge, and
move back the development of Clutter to the master branch.

In order to do so, we need to do some surgery to the Git repository.

First, we do a massive revert in a single commit of all that happened
since the switch to 1.99 and the API version bump done with the
89a2862b05 commit. The history is too long
to be reverted commit by commit without being extremely messy.
2015-01-03 20:34:20 +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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