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efl/src/lib/ecore_wl2/ecore_wl2_display.c

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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ecore_wl2_private.h"
/* for MIN() */
#include <sys/param.h>
#include "linux-dmabuf-unstable-v1-client-protocol.h"
static Eina_Hash *_server_displays = NULL;
static Eina_Hash *_client_displays = NULL;
static Eina_Bool _cb_connect_idle(void *data);
static Eina_Bool _cb_connect_data(void *data, Ecore_Fd_Handler *hdl);
static Eina_Bool _ecore_wl2_display_connect(Ecore_Wl2_Display *ewd, Eina_Bool sync);
static void
_ecore_wl2_display_event(Ecore_Wl2_Display *ewd, int event)
{
Ecore_Wl2_Event_Connect *ev;
ev = calloc(1, sizeof(Ecore_Wl2_Event_Connect));
EINA_SAFETY_ON_NULL_RETURN(ev);
ev->display = ewd;
ecore_event_add(event, ev, NULL, NULL);
}
static void
_ecore_wl2_display_signal_exit(void)
{
Ecore_Event_Signal_Exit *ev;
ev = calloc(1, sizeof(Ecore_Event_Signal_Exit));
if (!ev) return;
ev->quit = EINA_TRUE;
ecore_event_add(ECORE_EVENT_SIGNAL_EXIT, ev, NULL, NULL);
}
static void
_xdg_shell_cb_ping(void *data EINA_UNUSED, struct xdg_shell *shell, uint32_t serial)
{
xdg_shell_pong(shell, serial);
}
static const struct xdg_shell_listener _xdg_shell_listener =
{
_xdg_shell_cb_ping
};
static void
_dmabuf_cb_format(void *data EINA_UNUSED, struct zwp_linux_dmabuf_v1 *dmabuf EINA_UNUSED, uint32_t format EINA_UNUSED)
{
/* It would be awfully nice if this actually happened */
};
static const struct zwp_linux_dmabuf_v1_listener _dmabuf_listener =
{
_dmabuf_cb_format
};
static void
_cb_global_event_free(void *data EINA_UNUSED, void *event)
{
Ecore_Wl2_Event_Global *ev;
ev = event;
eina_stringshare_del(ev->interface);
free(ev);
}
static void
_cb_global_add(void *data, struct wl_registry *registry, unsigned int id, const char *interface, unsigned int version)
{
Ecore_Wl2_Display *ewd;
Ecore_Wl2_Event_Global *ev;
ewd = data;
/* test to see if we have already added this global to our hash */
if (!eina_hash_find(ewd->globals, &id))
{
Ecore_Wl2_Global *global;
/* allocate space for new global */
global = calloc(1, sizeof(Ecore_Wl2_Global));
if (!global) return;
global->id = id;
global->interface = eina_stringshare_add(interface);
global->version = version;
/* add this global to our hash */
if (!eina_hash_add(ewd->globals, &global->id, global))
{
eina_stringshare_del(global->interface);
free(global);
}
}
else
goto event;
if (!strcmp(interface, "wl_compositor"))
{
unsigned int request_version = 3;
#ifdef WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION
request_version = 4;
#endif
ewd->wl.compositor =
wl_registry_bind(registry, id, &wl_compositor_interface,
MIN(version, request_version));
ewd->wl.compositor_version = MIN(version, request_version);
}
else if (!strcmp(interface, "wl_subcompositor"))
{
ewd->wl.subcompositor =
wl_registry_bind(registry, id, &wl_subcompositor_interface, 1);
}
else if (!strcmp(interface, "wl_shm"))
{
ewd->wl.shm =
wl_registry_bind(registry, id, &wl_shm_interface, 1);
}
else if (!strcmp(interface, "zwp_linux_dmabuf_v1"))
{
ewd->wl.dmabuf =
wl_registry_bind(registry, id, &zwp_linux_dmabuf_v1_interface, 1);
zwp_linux_dmabuf_v1_add_listener(ewd->wl.dmabuf, &_dmabuf_listener, ewd);
}
else if (!strcmp(interface, "wl_data_device_manager"))
{
ewd->wl.data_device_manager_version = MIN(version, 3);
ewd->wl.data_device_manager =
wl_registry_bind(registry, id, &wl_data_device_manager_interface, ewd->wl.data_device_manager_version);
}
else if (!strcmp(interface, "wl_shell"))
{
ewd->wl.wl_shell =
wl_registry_bind(registry, id, &wl_shell_interface, 1);
}
else if ((!strcmp(interface, "xdg_shell")) &&
(!getenv("EFL_WAYLAND_DONT_USE_XDG_SHELL")))
{
Ecore_Wl2_Window *window;
ewd->wl.xdg_shell =
wl_registry_bind(registry, id, &xdg_shell_interface, 1);
xdg_shell_use_unstable_version(ewd->wl.xdg_shell, XDG_VERSION);
xdg_shell_add_listener(ewd->wl.xdg_shell, &_xdg_shell_listener, NULL);
EINA_INLIST_FOREACH(ewd->windows, window)
_ecore_wl2_window_shell_surface_init(window);
}
else if (eina_streq(interface, "www"))
{
Ecore_Wl2_Window *window;
ewd->wl.www = wl_registry_bind(registry, id, &www_interface, 1);
EINA_INLIST_FOREACH(ewd->windows, window)
_ecore_wl2_window_www_surface_init(window);
}
else if ((!strcmp(interface, "zwp_e_session_recovery")) &&
(!no_session_recovery))
{
ewd->wl.session_recovery =
wl_registry_bind(registry, id,
&zwp_e_session_recovery_interface, 1);
}
else if (!strcmp(interface, "wl_output"))
_ecore_wl2_output_add(ewd, id);
else if (!strcmp(interface, "wl_seat"))
_ecore_wl2_input_add(ewd, id, version);
event:
/* allocate space for event structure */
ev = calloc(1, sizeof(Ecore_Wl2_Event_Global));
if (!ev) return;
ev->id = id;
ev->display = ewd;
ev->version = version;
ev->interface = eina_stringshare_add(interface);
/* raise an event saying a new global has been added */
ecore_event_add(ECORE_WL2_EVENT_GLOBAL_ADDED, ev,
_cb_global_event_free, NULL);
}
static void
_cb_global_remove(void *data, struct wl_registry *registry EINA_UNUSED, unsigned int id)
{
Ecore_Wl2_Display *ewd;
Ecore_Wl2_Global *global;
Ecore_Wl2_Event_Global *ev;
ewd = data;
/* try to find this global in our hash */
global = eina_hash_find(ewd->globals, &id);
if (!global) return;
/* allocate space for event structure */
ev = calloc(1, sizeof(Ecore_Wl2_Event_Global));
if (!ev) return;
ev->id = id;
ev->display = ewd;
ev->version = global->version;
ev->interface = eina_stringshare_add(global->interface);
/* raise an event saying a global has been removed */
ecore_event_add(ECORE_WL2_EVENT_GLOBAL_REMOVED, ev,
_cb_global_event_free, NULL);
/* delete this global from our hash */
if (ewd->globals) eina_hash_del_by_key(ewd->globals, &id);
}
static const struct wl_registry_listener _registry_listener =
{
_cb_global_add,
_cb_global_remove
};
static Eina_Bool
_cb_create_data(void *data, Ecore_Fd_Handler *hdl EINA_UNUSED)
{
Ecore_Wl2_Display *ewd = data;
struct wl_event_loop *loop;
loop = wl_display_get_event_loop(ewd->wl.display);
wl_event_loop_dispatch(loop, 0);
/* wl_display_flush_clients(ewd->wl.display); */
return ECORE_CALLBACK_RENEW;
}
static void
_cb_create_prepare(void *data, Ecore_Fd_Handler *hdlr EINA_UNUSED)
{
Ecore_Wl2_Display *ewd = data;
wl_display_flush_clients(ewd->wl.display);
}
static Eina_Bool
_recovery_timer(Ecore_Wl2_Display *ewd)
{
if (!_ecore_wl2_display_connect(ewd, 1))
return EINA_TRUE;
ewd->recovery_timer = NULL;
return EINA_FALSE;
}
static void
_recovery_timer_add(Ecore_Wl2_Display *ewd)
{
Eina_Inlist *tmp;
Ecore_Wl2_Output *output;
Ecore_Wl2_Input *input;
Ecore_Wl2_Window *window;
eina_hash_free_buckets(ewd->globals);
ecore_idle_enterer_del(ewd->idle_enterer);
ewd->idle_enterer = NULL;
ecore_main_fd_handler_del(ewd->fd_hdl);
ewd->fd_hdl = NULL;
if (ewd->wl.session_recovery)
zwp_e_session_recovery_destroy(ewd->wl.session_recovery);
if (ewd->wl.www) www_destroy(ewd->wl.www);
if (ewd->wl.xdg_shell) xdg_shell_destroy(ewd->wl.xdg_shell);
if (ewd->wl.wl_shell) wl_shell_destroy(ewd->wl.wl_shell);
if (ewd->wl.shm) wl_shm_destroy(ewd->wl.shm);
if (ewd->wl.data_device_manager)
wl_data_device_manager_destroy(ewd->wl.data_device_manager);
if (ewd->wl.compositor) wl_compositor_destroy(ewd->wl.compositor);
if (ewd->wl.subcompositor) wl_subcompositor_destroy(ewd->wl.subcompositor);
if (ewd->wl.registry) wl_registry_destroy(ewd->wl.registry);
memset(&ewd->wl, 0, sizeof(ewd->wl));
EINA_INLIST_FOREACH_SAFE(ewd->inputs, tmp, input)
_ecore_wl2_input_del(input);
EINA_INLIST_FOREACH_SAFE(ewd->outputs, tmp, output)
_ecore_wl2_output_del(output);
EINA_INLIST_FOREACH_SAFE(ewd->windows, tmp, window)
ecore_wl2_window_hide(window);
ewd->recovery_timer = ecore_timer_add(0.5, (Ecore_Task_Cb)_recovery_timer, ewd);
_ecore_wl2_display_event(ewd, ECORE_WL2_EVENT_DISCONNECT);
}
static void
_begin_recovery_maybe(Ecore_Wl2_Display *ewd)
{
ERR("Wayland Socket Error: %s", strerror(errno));
if (ewd->wl.session_recovery)// && (errno == EPIPE))
_recovery_timer_add(ewd);
else
_ecore_wl2_display_signal_exit();
}
static Eina_Bool
_cb_connect_data(void *data, Ecore_Fd_Handler *hdl)
{
Ecore_Wl2_Display *ewd = data;
int ret = 0;
if (ecore_main_fd_handler_active_get(hdl, ECORE_FD_READ))
{
ret = wl_display_dispatch(ewd->wl.display);
if ((ret < 0) && (errno != EAGAIN)) goto err;
}
if (ecore_main_fd_handler_active_get(hdl, ECORE_FD_WRITE))
{
ret = wl_display_flush(ewd->wl.display);
if (ret == 0)
ecore_main_fd_handler_active_set(hdl, ECORE_FD_READ);
if ((ret < 0) && (errno != EAGAIN)) goto err;
}
return ECORE_CALLBACK_RENEW;
err:
ewd->fd_hdl = NULL;
_begin_recovery_maybe(ewd);
return ECORE_CALLBACK_CANCEL;
}
static void
_cb_globals_hash_del(void *data)
{
Ecore_Wl2_Global *global;
global = data;
eina_stringshare_del(global->interface);
free(global);
}
static Eina_Bool
_cb_connect_idle(void *data)
{
Ecore_Wl2_Display *ewd = data;
int ret = 0;
ret = wl_display_get_error(ewd->wl.display);
if (ret < 0) goto err;
ret = wl_display_dispatch_pending(ewd->wl.display);
if (ret < 0) goto err;
ret = wl_display_flush(ewd->wl.display);
if ((ret < 0) && (errno == EAGAIN))
ecore_main_fd_handler_active_set(ewd->fd_hdl,
(ECORE_FD_READ | ECORE_FD_WRITE));
return ECORE_CALLBACK_RENEW;
err:
if ((ret < 0) && (errno != EAGAIN))
{
ewd->idle_enterer = NULL;
_begin_recovery_maybe(ewd);
return ECORE_CALLBACK_CANCEL;
}
return ECORE_CALLBACK_RENEW;
}
static void
_cb_sync_done(void *data, struct wl_callback *cb, uint32_t serial EINA_UNUSED)
{
Ecore_Wl2_Event_Sync_Done *ev;
Ecore_Wl2_Display *ewd;
ewd = data;
ewd->sync_done = EINA_TRUE;
wl_callback_destroy(cb);
ev = calloc(1, sizeof(Ecore_Wl2_Event_Sync_Done));
if (!ev) return;
ev->display = ewd;
ecore_event_add(ECORE_WL2_EVENT_SYNC_DONE, ev, NULL, NULL);
}
static const struct wl_callback_listener _sync_listener =
{
_cb_sync_done
};
static Eina_Bool
_ecore_wl2_display_connect(Ecore_Wl2_Display *ewd, Eina_Bool sync)
{
struct wl_callback *cb;
/* try to connect to wayland display with this name */
ewd->wl.display = wl_display_connect(ewd->name);
if (!ewd->wl.display)
{
ERR("Could not connect to display %s", ewd->name);
return EINA_FALSE;
}
ewd->wl.registry = wl_display_get_registry(ewd->wl.display);
wl_registry_add_listener(ewd->wl.registry, &_registry_listener, ewd);
cb = wl_display_sync(ewd->wl.display);
wl_callback_add_listener(cb, &_sync_listener, ewd);
if (sync)
{
/* NB: If we are connecting (as a client), then we will need to setup
* a callback for display_sync and wait for it to complete. There is no
* other option here as we need the compositor, shell, etc, to be setup
* before we can allow a user to make use of the API functions */
while (!ewd->sync_done)
{
int ret;
ret = wl_display_dispatch(ewd->wl.display);
if ((ret < 0) && (errno != EAGAIN))
{
ERR("Received Fatal Error on Wayland Display");
wl_registry_destroy(ewd->wl.registry);
return EINA_FALSE;
}
}
}
ewd->fd_hdl =
ecore_main_fd_handler_add(wl_display_get_fd(ewd->wl.display),
ECORE_FD_READ | ECORE_FD_WRITE | ECORE_FD_ERROR,
_cb_connect_data, ewd, NULL, NULL);
ewd->idle_enterer = ecore_idle_enterer_add(_cb_connect_idle, ewd);
_ecore_wl2_display_event(ewd, ECORE_WL2_EVENT_CONNECT);
return EINA_TRUE;
}
static void
_ecore_wl2_display_cleanup(Ecore_Wl2_Display *ewd)
{
Ecore_Wl2_Output *output;
Ecore_Wl2_Input *input;
Eina_Inlist *tmp;
if (--ewd->refs) return;
if (ewd->xkb_context) xkb_context_unref(ewd->xkb_context);
/* free each input */
EINA_INLIST_FOREACH_SAFE(ewd->inputs, tmp, input)
_ecore_wl2_input_del(input);
/* free each output */
EINA_INLIST_FOREACH_SAFE(ewd->outputs, tmp, output)
_ecore_wl2_output_del(output);
if (ewd->idle_enterer) ecore_idle_enterer_del(ewd->idle_enterer);
if (ewd->fd_hdl) ecore_main_fd_handler_del(ewd->fd_hdl);
eina_hash_free(ewd->globals);
if (ewd->wl.session_recovery)
zwp_e_session_recovery_destroy(ewd->wl.session_recovery);
if (ewd->wl.www) www_destroy(ewd->wl.www);
if (ewd->wl.xdg_shell) xdg_shell_destroy(ewd->wl.xdg_shell);
if (ewd->wl.wl_shell) wl_shell_destroy(ewd->wl.wl_shell);
if (ewd->wl.shm) wl_shm_destroy(ewd->wl.shm);
if (ewd->wl.data_device_manager)
wl_data_device_manager_destroy(ewd->wl.data_device_manager);
if (ewd->wl.compositor) wl_compositor_destroy(ewd->wl.compositor);
if (ewd->wl.subcompositor) wl_subcompositor_destroy(ewd->wl.subcompositor);
if (ewd->wl.registry) wl_registry_destroy(ewd->wl.registry);
}
Ecore_Wl2_Window *
_ecore_wl2_display_window_surface_find(Ecore_Wl2_Display *display, struct wl_surface *wl_surface)
{
Ecore_Wl2_Window *window;
if ((!display) || (!wl_surface)) return NULL;
EINA_INLIST_FOREACH(display->windows, window)
{
if ((window->surface) &&
(window->surface == wl_surface))
return window;
}
return NULL;
}
EAPI Ecore_Wl2_Display *
ecore_wl2_display_create(const char *name)
{
Ecore_Wl2_Display *ewd;
struct wl_event_loop *loop;
if (!_server_displays)
_server_displays = eina_hash_string_superfast_new(NULL);
if (name)
{
/* someone wants to create a server with a specific display */
/* check hash of cached server displays for this name */
ewd = eina_hash_find(_server_displays, name);
if (ewd) goto found;
}
/* allocate space for display structure */
ewd = calloc(1, sizeof(Ecore_Wl2_Display));
if (!ewd) return NULL;
ewd->refs++;
ewd->pid = getpid();
/* try to create new wayland display */
ewd->wl.display = wl_display_create();
if (!ewd->wl.display)
{
ERR("Could not create wayland display");
goto create_err;
}
if (!name)
{
const char *n;
n = wl_display_add_socket_auto(ewd->wl.display);
if (!n)
{
ERR("Failed to add display socket");
goto socket_err;
}
ewd->name = strdup(n);
}
else
{
if (wl_display_add_socket(ewd->wl.display, name))
{
ERR("Failed to add display socket");
goto socket_err;
}
ewd->name = strdup(name);
}
setenv("WAYLAND_DISPLAY", ewd->name, 1);
DBG("WAYLAND_DISPLAY: %s", ewd->name);
loop = wl_display_get_event_loop(ewd->wl.display);
ewd->fd_hdl =
ecore_main_fd_handler_add(wl_event_loop_get_fd(loop),
ECORE_FD_READ | ECORE_FD_ERROR,
_cb_create_data, ewd, NULL, NULL);
ecore_main_fd_handler_prepare_callback_set(ewd->fd_hdl,
_cb_create_prepare, ewd);
/* add this new server display to hash */
eina_hash_add(_server_displays, ewd->name, ewd);
return ewd;
socket_err:
wl_display_destroy(ewd->wl.display);
create_err:
free(ewd);
return NULL;
found:
ewd->refs++;
return ewd;
}
static Eina_Bool
_ecore_wl2_display_sync_get(void)
{
Ecore_Wl2_Display *sewd;
Eina_Iterator *itr;
Eina_Bool ret = EINA_TRUE;
void *data;
if (eina_hash_population(_server_displays) < 1) return ret;
itr = eina_hash_iterator_data_new(_server_displays);
while (eina_iterator_next(itr, &data))
{
sewd = (Ecore_Wl2_Display *)data;
if (sewd->pid == getpid())
{
ret = EINA_FALSE;
break;
}
}
eina_iterator_free(itr);
return ret;
}
EAPI Ecore_Wl2_Display *
ecore_wl2_display_connect(const char *name)
{
Ecore_Wl2_Display *ewd;
const char *n;
Eina_Bool hash_create = !_client_displays;
if (!_client_displays)
_client_displays = eina_hash_string_superfast_new(NULL);
if (!name)
{
/* client wants to connect to default display */
n = getenv("WAYLAND_DISPLAY");
if (n)
{
/* we have a default wayland display */
/* check hash of cached client displays for this name */
ewd = eina_hash_find(_client_displays, n);
if (ewd) goto found;
}
}
else
{
/* client wants to connect to specific display */
/* check hash of cached client displays for this name */
ewd = eina_hash_find(_client_displays, name);
if (ewd) goto found;
}
if ((!name) && (!n))
{
ERR("No Wayland Display Running");
goto name_err;
}
/* allocate space for display structure */
ewd = calloc(1, sizeof(Ecore_Wl2_Display));
if (!ewd) return NULL;
ewd->refs++;
if (name)
ewd->name = strdup(name);
else if (n)
ewd->name = strdup(n);
ewd->globals = eina_hash_int32_new(_cb_globals_hash_del);
/* check server display hash and match on pid. If match, skip sync */
if (!_ecore_wl2_display_connect(ewd, _ecore_wl2_display_sync_get()))
goto connect_err;
ewd->xkb_context = xkb_context_new(0);
if (!ewd->xkb_context) goto context_err;
/* add this new client display to hash */
eina_hash_add(_client_displays, ewd->name, ewd);
return ewd;
context_err:
ecore_main_fd_handler_del(ewd->fd_hdl);
wl_registry_destroy(ewd->wl.registry);
wl_display_disconnect(ewd->wl.display);
connect_err:
eina_hash_free(ewd->globals);
free(ewd->name);
free(ewd);
return NULL;
name_err:
if (hash_create)
{
eina_hash_free(_client_displays);
_client_displays = NULL;
}
return NULL;
found:
ewd->refs++;
return ewd;
}
EAPI void
ecore_wl2_display_disconnect(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN(display);
_ecore_wl2_display_cleanup(display);
if (display->refs <= 0)
{
wl_display_disconnect(display->wl.display);
/* remove this client display from hash */
eina_hash_del_by_key(_client_displays, display->name);
free(display->name);
free(display);
}
}
EAPI void
ecore_wl2_display_destroy(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN(display);
_ecore_wl2_display_cleanup(display);
if (display->refs <= 0)
{
wl_display_destroy(display->wl.display);
/* remove this client display from hash */
eina_hash_del_by_key(_server_displays, display->name);
ecore_timer_del(display->recovery_timer);
free(display->name);
free(display);
}
}
EAPI void
ecore_wl2_display_terminate(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN(display);
wl_display_terminate(display->wl.display);
}
EAPI struct wl_display *
ecore_wl2_display_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
return display->wl.display;
}
EAPI struct wl_shm *
ecore_wl2_display_shm_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
return display->wl.shm;
}
EAPI void *
ecore_wl2_display_dmabuf_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
return display->wl.dmabuf;
}
EAPI Eina_Iterator *
ecore_wl2_display_globals_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
return display->globals ? eina_hash_iterator_data_new(display->globals) : NULL;
}
EAPI void
ecore_wl2_display_screen_size_get(Ecore_Wl2_Display *display, int *w, int *h)
{
Ecore_Wl2_Output *output;
int ow = 0, oh = 0;
EINA_SAFETY_ON_NULL_RETURN(display);
if (w) *w = 0;
if (h) *h = 0;
EINA_INLIST_FOREACH(display->outputs, output)
{
switch (output->transform)
{
case WL_OUTPUT_TRANSFORM_90:
case WL_OUTPUT_TRANSFORM_270:
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
ow += output->geometry.h;
oh += output->geometry.w;
break;
default:
ow += output->geometry.w;
oh += output->geometry.h;
break;
}
}
if (w) *w = ow;
if (h) *h = oh;
}
EAPI Ecore_Wl2_Window *
ecore_wl2_display_window_find(Ecore_Wl2_Display *display, unsigned int id)
{
Ecore_Wl2_Window *window;
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
EINA_INLIST_FOREACH(display->windows, window)
if (window->id == (int)id) return window;
return NULL;
}
EAPI struct wl_registry *
ecore_wl2_display_registry_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, NULL);
return display->wl.registry;
}
EAPI int
ecore_wl2_display_compositor_version_get(Ecore_Wl2_Display *display)
{
EINA_SAFETY_ON_NULL_RETURN_VAL(display, 0);
return display->wl.compositor_version;
}
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