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xserver/hw/xwayland/xwayland-screen.c

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/*
* Copyright © 2011-2014 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of the
* copyright holders not be used in advertising or publicity
* pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#include <xwayland-config.h>
#include <math.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#ifdef XWL_HAS_GLAMOR
#include <glamor.h>
#endif
#include <X11/Xatom.h>
#include <X11/Xfuncproto.h>
#include "dix/dix_priv.h"
#include "dix/input_priv.h"
#include "dix/property_priv.h"
#include "dix/screen_hooks_priv.h"
#include "os/client_priv.h"
#include "os/osdep.h"
#include "os/xserver_poll.h"
#include "extinit_priv.h"
#include <micmap.h>
#include <misyncshm.h>
#include <os.h>
#include <fb.h>
#include <dixstruct.h>
#include <propertyst.h>
#include <inputstr.h>
#include <xacestr.h>
#include "xwayland-cursor.h"
#include "xwayland-screen.h"
#include "xwayland-window.h"
#include "xwayland-input.h"
#include "xwayland-output.h"
#include "xwayland-pixmap.h"
#include "xwayland-present.h"
#include "xwayland-shm.h"
#ifdef XWL_HAS_EI
#include "xwayland-xtest.h"
#endif
#ifdef XWL_HAS_GLAMOR
#include "xwayland-glamor.h"
#endif
#ifdef MITSHM
#include "shmint.h"
#endif
#include "xdg-output-unstable-v1-client-protocol.h"
#include "viewporter-client-protocol.h"
#include "xdg-shell-client-protocol.h"
#include "xwayland-shell-v1-client-protocol.h"
#include "tearing-control-v1-client-protocol.h"
#include "fractional-scale-v1-client-protocol.h"
static DevPrivateKeyRec xwl_screen_private_key;
static DevPrivateKeyRec xwl_client_private_key;
#define DEFAULT_DPI 96
_X_NORETURN
static void _X_ATTRIBUTE_PRINTF(1, 2)
xwl_give_up(const char *f, ...)
{
va_list args;
va_start(args, f);
LogVMessageVerb(X_NONE, -1, f, args);
va_end(args);
CloseWellKnownConnections();
OsCleanup(TRUE);
fflush(stderr);
exit(1);
}
struct xwl_client *
xwl_client_get(ClientPtr client)
{
return dixLookupPrivate(&client->devPrivates, &xwl_client_private_key);
}
struct xwl_screen *
xwl_screen_get(ScreenPtr screen)
{
return dixLookupPrivate(&screen->devPrivates, &xwl_screen_private_key);
}
Bool
xwl_screen_has_viewport_support(struct xwl_screen *xwl_screen)
{
return wl_compositor_get_version(xwl_screen->compositor) >=
WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION &&
xwl_screen->viewporter != NULL;
}
Bool
xwl_screen_has_resolution_change_emulation(struct xwl_screen *xwl_screen)
{
/* Resolution change emulation is only supported in rootless mode and
* it requires viewport support.
*/
return xwl_screen->rootless && xwl_screen_has_viewport_support(xwl_screen);
}
/* Return the output @ 0x0, falling back to the first output in the list */
struct xwl_output *
xwl_screen_get_first_output(struct xwl_screen *xwl_screen)
{
struct xwl_output *xwl_output;
xorg_list_for_each_entry(xwl_output, &xwl_screen->output_list, link) {
if (xwl_output->x == 0 && xwl_output->y == 0)
return xwl_output;
}
if (xorg_list_is_empty(&xwl_screen->output_list))
return NULL;
return xorg_list_first_entry(&xwl_screen->output_list, struct xwl_output, link);
}
struct xwl_output *
xwl_screen_get_fixed_or_first_output(struct xwl_screen *xwl_screen)
{
if (xwl_screen->fixed_output)
return xwl_screen->fixed_output;
return xwl_screen_get_first_output(xwl_screen);
}
int
xwl_screen_get_width(struct xwl_screen *xwl_screen)
{
return round(xwl_screen->width);
}
int
xwl_screen_get_height(struct xwl_screen *xwl_screen)
{
return round(xwl_screen->height);
}
static void
xwl_property_callback(CallbackListPtr *pcbl, void *closure,
void *calldata)
{
ScreenPtr screen = closure;
PropertyStateRec *rec = calldata;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
if (rec->win->drawable.pScreen != screen)
return;
xwl_window = xwl_window_get(rec->win);
if (!xwl_window)
return;
xwl_screen = xwl_screen_get(screen);
if (rec->prop->propertyName == xwl_screen->allow_commits_prop)
xwl_window_update_property(xwl_window, rec);
}
#define readOnlyPropertyAccessMask (DixReadAccess |\
DixGetAttrAccess |\
DixListPropAccess |\
DixGetPropAccess)
static void
xwl_access_property_callback(CallbackListPtr *pcbl, void *closure,
void *calldata)
{
XacePropertyAccessRec *rec = calldata;
PropertyPtr prop = *rec->ppProp;
ClientPtr client = rec->client;
Mask access_mode = rec->access_mode;
ScreenPtr pScreen = closure;
struct xwl_screen *xwl_screen = xwl_screen_get(pScreen);
if (prop->propertyName == xwl_screen->allow_commits_prop) {
/* Only the WM and the Xserver itself */
if (client != serverClient &&
client->index != xwl_screen->wm_client_id &&
(access_mode & ~readOnlyPropertyAccessMask) != 0)
rec->status = BadAccess;
}
}
#undef readOnlyPropertyAccessMask
static void
xwl_root_window_finalized_callback(CallbackListPtr *pcbl,
void *closure,
void *calldata)
{
ScreenPtr screen = closure;
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_queued_drm_lease_device *queued_device, *next;
xorg_list_for_each_entry_safe(queued_device, next,
&xwl_screen->queued_drm_lease_devices, link) {
xwl_screen_add_drm_lease_device(xwl_screen, queued_device->id);
xorg_list_del(&queued_device->link);
free(queued_device);
}
DeleteCallback(&RootWindowFinalizeCallback, xwl_root_window_finalized_callback, screen);
}
static void xwl_close_screen(CallbackListPtr *pcbl,
ScreenPtr screen, void *unused)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_output *xwl_output, *next_xwl_output;
struct xwl_seat *xwl_seat, *next_xwl_seat;
struct xwl_wl_surface *xwl_wl_surface, *xwl_wl_surface_next;
#ifdef XWL_HAS_GLAMOR
xwl_dmabuf_feedback_destroy(&xwl_screen->default_feedback);
#endif
dixScreenUnhookClose(screen, xwl_close_screen);
DeleteCallback(&PropertyStateCallback, xwl_property_callback, screen);
XaceDeleteCallback(XACE_PROPERTY_ACCESS, xwl_access_property_callback, screen);
xorg_list_for_each_entry_safe(xwl_output, next_xwl_output,
&xwl_screen->output_list, link)
xwl_output_destroy(xwl_output);
if (xwl_screen->fixed_output)
xwl_output_destroy(xwl_screen->fixed_output);
xorg_list_for_each_entry_safe(xwl_seat, next_xwl_seat,
&xwl_screen->seat_list, link)
xwl_seat_destroy(xwl_seat);
xwl_screen_release_tablet_manager(xwl_screen);
struct xwl_drm_lease_device *device_data, *next;
xorg_list_for_each_entry_safe(device_data, next,
&xwl_screen->drm_lease_devices, link)
xwl_screen_destroy_drm_lease_device(xwl_screen,
device_data->drm_lease_device);
xorg_list_for_each_entry_safe(xwl_wl_surface, xwl_wl_surface_next,
&xwl_screen->pending_wl_surface_destroy, link)
xwl_window_surface_do_destroy(xwl_wl_surface);
RemoveNotifyFd(xwl_screen->wayland_fd);
wl_display_disconnect(xwl_screen->display);
free(xwl_screen);
}
static struct xwl_seat *
xwl_screen_get_default_seat(struct xwl_screen *xwl_screen)
{
if (xorg_list_is_empty(&xwl_screen->seat_list))
return NULL;
return container_of(xwl_screen->seat_list.prev,
struct xwl_seat,
link);
}
static void
xwl_cursor_warped_to(DeviceIntPtr device,
ScreenPtr screen,
ClientPtr client,
WindowPtr window,
SpritePtr sprite,
int x, int y)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_seat *xwl_seat = device->public.devicePrivate;
struct xwl_window *xwl_window;
WindowPtr focus;
if (!xwl_seat)
xwl_seat = xwl_screen_get_default_seat(xwl_screen);
if (!window)
window = XYToWindow(sprite, x, y);
xwl_window = xwl_window_from_window(window);
if (!xwl_window && xwl_seat && xwl_seat->focus_window) {
focus = xwl_seat->focus_window->toplevel;
/* Warps on non wl_surface backed Windows are only allowed
* as long as the pointer stays within the focus window.
*/
if (x >= focus->drawable.x &&
y >= focus->drawable.y &&
x < focus->drawable.x + focus->drawable.width &&
y < focus->drawable.y + focus->drawable.height) {
if (!window) {
DebugF("Warp relative to pointer, assuming pointer focus\n");
xwl_window = xwl_seat->focus_window;
} else if (window == screen->root) {
DebugF("Warp on root window, assuming pointer focus\n");
xwl_window = xwl_seat->focus_window;
}
}
}
if (!xwl_window)
return;
xwl_seat_emulate_pointer_warp(xwl_seat, xwl_window, sprite, x, y);
}
static void
xwl_set_shape(WindowPtr window,
int kind)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
xwl_screen = xwl_screen_get(screen);
xwl_window = xwl_window_get(window);
screen->SetShape = xwl_screen->SetShape;
(*screen->SetShape) (window, kind);
xwl_screen->SetShape = screen->SetShape;
screen->SetShape = xwl_set_shape;
if (!xwl_window)
return;
if (kind == ShapeInput) {
xwl_window_set_input_region(xwl_window, wInputShape(window));
if (xwl_window->allow_commits)
wl_surface_commit(xwl_window->surface);
}
}
static struct xwl_window *
find_matching_input_output_window(struct xwl_screen *xwl_screen,
WindowPtr window)
{
struct xwl_window *xwl_window;
xorg_list_for_each_entry(xwl_window, &xwl_screen->window_list, link_window) {
/* When confining happens on InputOnly windows, work out the InputOutput
* window that would be covered by its geometry.
*/
if (window->drawable.x < xwl_window->toplevel->drawable.x ||
window->drawable.x + window->drawable.width >
xwl_window->toplevel->drawable.x + xwl_window->toplevel->drawable.width ||
window->drawable.y < xwl_window->toplevel->drawable.y ||
window->drawable.y + window->drawable.height >
xwl_window->toplevel->drawable.y + xwl_window->toplevel->drawable.height)
continue;
if (xwl_window->toplevel->drawable.class == InputOnly)
continue;
return xwl_window;
}
return NULL;
}
static void
xwl_cursor_confined_to(DeviceIntPtr device,
ScreenPtr screen,
WindowPtr window)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
struct xwl_seat *xwl_seat = device->public.devicePrivate;
struct xwl_window *xwl_window;
/* If running rootful with host grab requested, do not tamper with
* pointer confinement.
*/
if (!xwl_screen->rootless && xwl_screen->host_grab && xwl_screen->has_grab)
return;
if (!xwl_seat)
xwl_seat = xwl_screen_get_default_seat(xwl_screen);
/* xwl_seat hasn't been setup yet, don't do anything just yet */
if (!xwl_seat)
return;
if (window == screen->root) {
xwl_seat_unconfine_pointer(xwl_seat);
return;
}
xwl_window = xwl_window_from_window(window);
if (!xwl_window && window->drawable.class == InputOnly) {
DebugF("Confine on InputOnly window, finding matching toplevel\n");
xwl_window = find_matching_input_output_window(xwl_screen, window);
}
if (!xwl_window)
return;
xwl_seat_confine_pointer(xwl_seat, xwl_window);
}
void
xwl_screen_check_resolution_change_emulation(struct xwl_screen *xwl_screen)
{
struct xwl_window *xwl_window;
xorg_list_for_each_entry(xwl_window, &xwl_screen->window_list, link_window)
xwl_window_check_resolution_change_emulation(xwl_window);
}
static void
xwl_screen_post_damage(struct xwl_screen *xwl_screen)
{
struct xwl_window *xwl_window, *next_xwl_window;
struct xorg_list commit_window_list;
xorg_list_init(&commit_window_list);
xorg_list_for_each_entry_safe(xwl_window, next_xwl_window,
&xwl_screen->damage_window_list, link_damage) {
/* If we're waiting on a frame callback from the server,
* don't attach a new buffer. */
if (xwl_window->frame_callback)
continue;
if (!xwl_window->allow_commits)
continue;
xwl_window_post_damage(xwl_window);
xorg_list_del(&xwl_window->link_damage);
xorg_list_append(&xwl_window->link_damage, &commit_window_list);
}
if (xorg_list_is_empty(&commit_window_list))
return;
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor)
glamor_block_handler(xwl_screen->screen);
#endif
xorg_list_for_each_entry_safe(xwl_window, next_xwl_window,
&commit_window_list, link_damage) {
wl_surface_commit(xwl_window->surface);
xorg_list_del(&xwl_window->link_damage);
}
}
static void
xdg_wm_base_ping(void *data, struct xdg_wm_base *xdg_wm_base,
uint32_t serial)
{
xdg_wm_base_pong(xdg_wm_base, serial);
}
static const struct xdg_wm_base_listener xdg_wm_base_listener = {
xdg_wm_base_ping,
};
static void
registry_global(void *data, struct wl_registry *registry, uint32_t id,
const char *interface, uint32_t version)
{
struct xwl_screen *xwl_screen = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
uint32_t request_version = 1;
if (version >= WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
request_version = WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION;
xwl_screen->compositor =
wl_registry_bind(registry, id, &wl_compositor_interface, request_version);
}
else if (strcmp(interface, wl_shm_interface.name) == 0) {
xwl_screen->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
}
else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
xwl_screen->xdg_wm_base =
wl_registry_bind(registry, id, &xdg_wm_base_interface, 1);
xdg_wm_base_add_listener(xwl_screen->xdg_wm_base,
&xdg_wm_base_listener,
NULL);
}
else if (strcmp(interface, wl_output_interface.name) == 0 && version >= 2) {
if (xwl_output_create(xwl_screen, id, (xwl_screen->fixed_output == NULL), version))
xwl_screen->expecting_event++;
}
else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
/* We support xdg-output from version 1 to version 3 */
version = min(version, 3);
xwl_screen->xdg_output_manager =
wl_registry_bind(registry, id, &zxdg_output_manager_v1_interface, version);
xwl_screen_init_xdg_output(xwl_screen);
}
else if (strcmp(interface, wp_drm_lease_device_v1_interface.name) == 0) {
if (xwl_screen->screen->root == NULL) {
struct xwl_queued_drm_lease_device *queued = XNFcallocarray(1, sizeof(struct xwl_queued_drm_lease_device));
queued->id = id;
xorg_list_append(&queued->link, &xwl_screen->queued_drm_lease_devices);
} else {
xwl_screen_add_drm_lease_device(xwl_screen, id);
}
}
else if (strcmp(interface, wp_viewporter_interface.name) == 0) {
xwl_screen->viewporter = wl_registry_bind(registry, id, &wp_viewporter_interface, 1);
}
else if (strcmp(interface, xwayland_shell_v1_interface.name) == 0 && xwl_screen->rootless) {
xwl_screen->xwayland_shell =
wl_registry_bind(registry, id, &xwayland_shell_v1_interface, 1);
}
else if (strcmp(interface, wp_tearing_control_manager_v1_interface.name) == 0) {
xwl_screen->tearing_control_manager =
wl_registry_bind(registry, id, &wp_tearing_control_manager_v1_interface, 1);
}
else if (strcmp(interface, wp_fractional_scale_manager_v1_interface.name) == 0) {
xwl_screen->fractional_scale_manager =
wl_registry_bind(registry, id, &wp_fractional_scale_manager_v1_interface, 1);
}
#ifdef XWL_HAS_GLAMOR
else if (xwl_screen->glamor) {
xwl_glamor_init_wl_registry(xwl_screen, registry, id, interface,
version);
}
#endif
}
static void
global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
struct xwl_screen *xwl_screen = data;
struct xwl_output *xwl_output, *tmp_xwl_output;
struct xwl_drm_lease_device *lease_device, *tmp_lease_device;
xorg_list_for_each_entry_safe(xwl_output, tmp_xwl_output,
&xwl_screen->output_list, link) {
if (xwl_output->server_output_id == name) {
xwl_output_remove(xwl_output);
break;
}
}
xorg_list_for_each_entry_safe(lease_device, tmp_lease_device,
&xwl_screen->drm_lease_devices, link) {
if (lease_device->id == name) {
wp_drm_lease_device_v1_release(lease_device->drm_lease_device);
break;
}
}
}
static const struct wl_registry_listener registry_listener = {
registry_global,
global_remove
};
static void
xwl_read_events (struct xwl_screen *xwl_screen)
{
int ret;
if (xwl_screen->wait_flush)
return;
ret = wl_display_read_events(xwl_screen->display);
if (ret == -1)
xwl_give_up("failed to read Wayland events: %s\n", strerror(errno));
xwl_screen->prepare_read = 0;
ret = wl_display_dispatch_pending(xwl_screen->display);
if (ret == -1)
xwl_give_up("failed to dispatch Wayland events: %s\n", strerror(errno));
}
static int
xwl_display_pollout (struct xwl_screen *xwl_screen, int timeout)
{
struct pollfd poll_fd;
poll_fd.fd = wl_display_get_fd(xwl_screen->display);
poll_fd.events = POLLOUT;
return xserver_poll(&poll_fd, 1, timeout);
}
#ifdef XWL_HAS_LIBDECOR
static void
xwl_dispatch_events_with_libdecor(struct xwl_screen *xwl_screen)
{
int ret = 0;
assert(!xwl_screen->rootless);
ret = libdecor_dispatch(xwl_screen->libdecor_context, 0);
if (ret == -1)
xwl_give_up("failed to dispatch Wayland events with libdecor: %s\n",
strerror(errno));
}
static void
handle_libdecor_error(struct libdecor *context,
enum libdecor_error error,
const char *message)
{
xwl_give_up("libdecor error (%d): %s\n", error, message);
}
static struct libdecor_interface libdecor_iface = {
.error = handle_libdecor_error,
};
#endif
static void
xwl_dispatch_events (struct xwl_screen *xwl_screen)
{
int ret = 0;
int ready;
if (xwl_screen->wait_flush)
goto pollout;
while (xwl_screen->prepare_read == 0 &&
wl_display_prepare_read(xwl_screen->display) == -1) {
ret = wl_display_dispatch_pending(xwl_screen->display);
if (ret == -1)
xwl_give_up("failed to dispatch Wayland events: %s\n",
strerror(errno));
}
xwl_screen->prepare_read = 1;
pollout:
ready = xwl_display_pollout(xwl_screen, 5);
if (ready == -1 && errno != EINTR)
xwl_give_up("error polling on Xwayland fd: %s\n", strerror(errno));
if (ready > 0)
ret = wl_display_flush(xwl_screen->display);
if (ret == -1 && errno != EAGAIN)
xwl_give_up("failed to write to Xwayland fd: %s\n", strerror(errno));
xwl_screen->wait_flush = (ready == 0 || ready == -1 || ret == -1);
}
static void
socket_handler(int fd, int ready, void *data)
{
struct xwl_screen *xwl_screen = data;
#ifdef XWL_HAS_LIBDECOR
if (xwl_screen->libdecor_context) {
xwl_dispatch_events_with_libdecor(xwl_screen);
return;
}
#endif
xwl_read_events (xwl_screen);
}
static void
wakeup_handler(void *data, int err)
{
}
static void
block_handler(void *data, void *timeout)
{
struct xwl_screen *xwl_screen = data;
xwl_screen_post_damage(xwl_screen);
#ifdef XWL_HAS_LIBDECOR
if (xwl_screen->libdecor_context) {
xwl_dispatch_events_with_libdecor(xwl_screen);
return;
}
#endif
xwl_dispatch_events (xwl_screen);
}
void
xwl_sync_events (struct xwl_screen *xwl_screen)
{
#ifdef XWL_HAS_LIBDECOR
if (xwl_screen->libdecor_context) {
xwl_dispatch_events_with_libdecor(xwl_screen);
return;
}
#endif
xwl_dispatch_events (xwl_screen);
xwl_read_events (xwl_screen);
}
void xwl_surface_damage(struct xwl_screen *xwl_screen,
struct wl_surface *surface,
int32_t x, int32_t y, int32_t width, int32_t height)
{
if (wl_surface_get_version(surface) >= WL_SURFACE_DAMAGE_BUFFER_SINCE_VERSION)
wl_surface_damage_buffer(surface, x, y, width, height);
else
wl_surface_damage(surface, x, y, width, height);
}
void
xwl_screen_roundtrip(struct xwl_screen *xwl_screen)
{
int ret;
do {
ret = wl_display_roundtrip(xwl_screen->display);
} while (ret >= 0 && xwl_screen->expecting_event);
if (ret < 0)
xwl_give_up("could not connect to wayland server\n");
}
static int
xwl_server_grab(ClientPtr client)
{
struct xwl_screen *xwl_screen;
/* Allow GrabServer for the X11 window manager.
* Xwayland only has 1 screen (no Zaphod for Xwayland) so we check
* for the first and only screen here.
*/
xwl_screen = xwl_screen_get(screenInfo.screens[0]);
if (xwl_screen->wm_client_id == client->index)
return xwl_screen->GrabServer(client);
/* For all other clients, just pretend it works for compatibility,
but do nothing */
return Success;
}
static int
xwl_server_ungrab(ClientPtr client)
{
struct xwl_screen *xwl_screen;
/* Same as above, allow UngrabServer for the X11 window manager only */
xwl_screen = xwl_screen_get(screenInfo.screens[0]);
if (xwl_screen->wm_client_id == client->index)
return xwl_screen->UngrabServer(client);
/* For all other clients, just pretend it works for compatibility,
but do nothing */
return Success;
}
static void
xwl_screen_setup_custom_vector(struct xwl_screen *xwl_screen)
{
/* Rootfull Xwayland does not need a custom ProcVector (yet?) */
if (!xwl_screen->rootless)
return;
xwl_screen->GrabServer = ProcVector[X_GrabServer];
xwl_screen->UngrabServer = ProcVector[X_UngrabServer];
ProcVector[X_GrabServer] = xwl_server_grab;
ProcVector[X_UngrabServer] = xwl_server_ungrab;
}
int
xwl_screen_get_next_output_serial(struct xwl_screen *xwl_screen)
{
return xwl_screen->output_name_serial++;
}
void
xwl_screen_lost_focus(struct xwl_screen *xwl_screen)
{
struct xwl_seat *xwl_seat;
xorg_list_for_each_entry(xwl_seat, &xwl_screen->seat_list, link) {
xwl_seat_leave_ptr(xwl_seat, TRUE);
xwl_seat_leave_kbd(xwl_seat);
}
}
Bool
xwl_screen_should_use_fractional_scale(struct xwl_screen *xwl_screen)
{
/* Fullscreen uses a viewport already */
if (xwl_screen->fullscreen)
return FALSE;
if (xwl_screen->rootless)
return FALSE;
/* We need both fractional scale and viewporter protocols */
if (!xwl_screen->fractional_scale_manager)
return FALSE;
if (!xwl_screen->viewporter)
return FALSE;
return xwl_screen->hidpi;
}
Bool
xwl_screen_update_global_surface_scale(struct xwl_screen *xwl_screen)
{
ScreenPtr screen = xwl_screen->screen;
struct xwl_window *xwl_window;
int32_t old_scale;
if (xwl_screen_should_use_fractional_scale(xwl_screen))
return FALSE;
if (xwl_screen->rootless)
return FALSE;
if (xwl_screen->fullscreen)
return FALSE;
if (!xwl_screen->hidpi)
return FALSE;
if (screen->root == NullWindow)
return FALSE;
xwl_window = xwl_window_get(screen->root);
if (!xwl_window)
return FALSE;
old_scale = xwl_screen->global_surface_scale;
xwl_screen->global_surface_scale = xwl_window_get_max_output_scale(xwl_window);
return (xwl_screen->global_surface_scale != old_scale);
}
Bool
xwl_screen_init(ScreenPtr pScreen, int argc, char **argv)
{
static const char allow_commits[] = "_XWAYLAND_ALLOW_COMMITS";
struct xwl_screen *xwl_screen;
Pixel red_mask, blue_mask, green_mask;
int ret, bpc, green_bpc, i;
unsigned int xwl_width = 640;
unsigned int xwl_height = 480;
Bool use_fixed_size = FALSE;
if (!dixRegisterPrivateKey(&xwl_screen_private_key, PRIVATE_SCREEN, 0))
return FALSE;
if (!xwl_pixmap_init())
return FALSE;
if (!xwl_window_init())
return FALSE;
/* There are no easy to use new / delete client hooks, we could use a
* ClientStateCallback, but it is easier to let the dix code manage the
* memory for us. This will zero fill the initial xwl_client data.
*/
if (!dixRegisterPrivateKey(&xwl_client_private_key, PRIVATE_CLIENT,
sizeof(struct xwl_client)))
return FALSE;
xwl_screen = calloc(1, sizeof *xwl_screen);
if (xwl_screen == NULL)
return FALSE;
dixSetPrivate(&pScreen->devPrivates, &xwl_screen_private_key, xwl_screen);
xwl_screen->screen = pScreen;
#ifdef XWL_HAS_EI
if (!xwayland_ei_init())
return FALSE;
#endif
#ifdef XWL_HAS_GLAMOR
xwl_screen->glamor = XWL_GLAMOR_DEFAULT;
#endif
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-rootless") == 0) {
xwl_screen->rootless = 1;
/* Disable the XSS extension on Xwayland rootless.
*
* Xwayland is just a Wayland client, no X11 screensaver
* should be expected to work reliably on Xwayland rootless.
*/
#ifdef SCREENSAVER
noScreenSaverExtension = TRUE;
#endif
ScreenSaverTime = 0;
ScreenSaverInterval = 0;
defaultScreenSaverTime = 0;
defaultScreenSaverInterval = 0;
}
else if (strcmp(argv[i], "-shm") == 0) {
xwl_screen->glamor = XWL_GLAMOR_NONE;
}
#ifdef XWL_HAS_GLAMOR
else if (strcmp(argv[i], "-glamor") == 0) {
if (strncmp(argv[i + 1], "es", 2) == 0)
xwl_screen->glamor = XWL_GLAMOR_GLES;
else if (strncmp(argv[i + 1], "gl", 2) == 0)
xwl_screen->glamor = XWL_GLAMOR_GL;
else if (strncmp(argv[i + 1], "off", 3) == 0)
xwl_screen->glamor = XWL_GLAMOR_NONE;
else
ErrorF("Xwayland glamor: unknown rendering API selected\n");
}
#endif
else if (strcmp(argv[i], "-force-xrandr-emulation") == 0) {
xwl_screen->force_xrandr_emulation = 1;
}
else if (strcmp(argv[i], "-geometry") == 0) {
sscanf(argv[i + 1], "%ix%i", &xwl_width, &xwl_height);
if (xwl_width == 0 || xwl_height == 0) {
ErrorF("invalid argument for -geometry %s\n", argv[i + 1]);
return FALSE;
}
use_fixed_size = 1;
}
else if (strcmp(argv[i], "-fullscreen") == 0) {
use_fixed_size = 1;
xwl_screen->fullscreen = 1;
}
else if (strcmp(argv[i], "-output") == 0) {
xwl_screen->output_name = argv[i + 1];
}
else if (strcmp(argv[i], "-host-grab") == 0) {
xwl_screen->host_grab = 1;
xwl_screen->has_grab = 1;
}
else if (strcmp(argv[i], "-decorate") == 0) {
#ifdef XWL_HAS_LIBDECOR
xwl_screen->decorate = 1;
use_fixed_size = 1;
#else
ErrorF("This build does not have libdecor support\n");
#endif
}
else if (strcmp(argv[i], "-enable-ei-portal") == 0) {
#ifdef XWL_HAS_EI_PORTAL
xwl_screen->enable_ei_portal = 1;
#else
ErrorF("This build does not have XDG portal support\n");
#endif
}
else if (strcmp(argv[i], "-nokeymap") == 0) {
xwl_screen->nokeymap = 1;
}
else if (strcmp(argv[i], "-hidpi") == 0) {
xwl_screen->hidpi = 1;
}
}
if (!xwl_screen->rootless) {
use_fixed_size = 1;
xwl_screen->width = xwl_width;
xwl_screen->height = xwl_height;
} else if (use_fixed_size) {
ErrorF("error, cannot set a geometry when running rootless\n");
return FALSE;
}
xwl_screen->display = wl_display_connect(NULL);
if (xwl_screen->display == NULL) {
ErrorF("could not connect to wayland server\n");
return FALSE;
}
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor && !xwl_glamor_init_gbm(xwl_screen)) {
ErrorF("xwayland glamor: failed to setup GBM backend, falling back to sw accel\n");
xwl_screen->glamor = 0;
}
#endif
/* In rootless mode, we don't have any screen storage, and the only
* rendering should be to redirected mode. */
if (xwl_screen->rootless)
xwl_screen->root_clip_mode = ROOT_CLIP_INPUT_ONLY;
else
xwl_screen->root_clip_mode = ROOT_CLIP_FULL;
xorg_list_init(&xwl_screen->output_list);
xorg_list_init(&xwl_screen->seat_list);
xorg_list_init(&xwl_screen->damage_window_list);
xorg_list_init(&xwl_screen->window_list);
xorg_list_init(&xwl_screen->drm_lease_devices);
xorg_list_init(&xwl_screen->queued_drm_lease_devices);
xorg_list_init(&xwl_screen->drm_leases);
xorg_list_init(&xwl_screen->pending_wl_surface_destroy);
xwl_screen->depth = 24;
xwl_screen->global_surface_scale = 1;
if (!monitorResolution)
monitorResolution = DEFAULT_DPI;
if (use_fixed_size) {
if (!xwl_screen_init_randr_fixed(xwl_screen))
return FALSE;
} else {
if (!xwl_screen_init_output(xwl_screen))
return FALSE;
}
xwl_screen->expecting_event = 0;
xwl_screen->registry = wl_display_get_registry(xwl_screen->display);
wl_registry_add_listener(xwl_screen->registry,
&registry_listener, xwl_screen);
xwl_screen_roundtrip(xwl_screen);
if (xwl_screen->fullscreen && xwl_screen->rootless) {
ErrorF("error, cannot set fullscreen when running rootless\n");
return FALSE;
}
if (xwl_screen->fullscreen && xwl_screen->decorate) {
ErrorF("error, cannot use the decorate option when running fullscreen\n");
return FALSE;
}
if (xwl_screen->fullscreen && !xwl_screen_has_viewport_support(xwl_screen)) {
ErrorF("missing viewport support in the compositor, ignoring fullscreen\n");
xwl_screen->fullscreen = FALSE;
}
if (xwl_screen->host_grab && xwl_screen->rootless) {
ErrorF("error, cannot use host grab when running rootless\n");
return FALSE;
}
if (!xwl_screen->rootless && !xwl_screen->xdg_wm_base) {
ErrorF("missing XDG-WM-Base protocol\n");
return FALSE;
}
bpc = xwl_screen->depth / 3;
green_bpc = xwl_screen->depth - 2 * bpc;
blue_mask = (1 << bpc) - 1;
green_mask = ((1 << green_bpc) - 1) << bpc;
red_mask = blue_mask << (green_bpc + bpc);
miSetVisualTypesAndMasks(xwl_screen->depth,
((1 << TrueColor) | (1 << DirectColor)),
green_bpc, TrueColor,
red_mask, green_mask, blue_mask);
miSetPixmapDepths();
ret = fbScreenInit(pScreen, NULL,
xwl_screen_get_width(xwl_screen),
xwl_screen_get_height(xwl_screen),
monitorResolution, monitorResolution, 0,
BitsPerPixel(xwl_screen->depth));
if (!ret)
return FALSE;
fbPictureInit(pScreen, 0, 0);
#ifdef MITSHM
ShmRegisterFbFuncs(pScreen);
#endif
#ifdef HAVE_XSHMFENCE
if (!miSyncShmScreenInit(pScreen))
return FALSE;
#endif
#ifdef XWL_HAS_LIBDECOR
if (xwl_screen->decorate && !xwl_screen->rootless) {
xwl_screen->libdecor_context = libdecor_new(xwl_screen->display, &libdecor_iface);
xwl_screen->wayland_fd = libdecor_get_fd(xwl_screen->libdecor_context);
}
else
#endif
{
xwl_screen->wayland_fd = wl_display_get_fd(xwl_screen->display);
}
SetNotifyFd(xwl_screen->wayland_fd, socket_handler, X_NOTIFY_READ, xwl_screen);
RegisterBlockAndWakeupHandlers(block_handler, wakeup_handler, xwl_screen);
pScreen->blackPixel = 0;
pScreen->whitePixel = 1;
ret = fbCreateDefColormap(pScreen);
if (!xwl_screen_init_cursor(xwl_screen))
return FALSE;
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor && !xwl_glamor_init(xwl_screen)) {
ErrorF("Failed to initialize glamor, falling back to sw\n");
xwl_screen->glamor = XWL_GLAMOR_NONE;
}
#endif
xwl_screen->present = xwl_present_init(pScreen);
if (!xwl_screen->glamor) {
pScreen->CreateScreenResources = xwl_shm_create_screen_resources;
pScreen->CreatePixmap = xwl_shm_create_pixmap;
pScreen->DestroyPixmap = xwl_shm_destroy_pixmap;
}
xwl_screen->RealizeWindow = pScreen->RealizeWindow;
pScreen->RealizeWindow = xwl_realize_window;
xwl_screen->UnrealizeWindow = pScreen->UnrealizeWindow;
pScreen->UnrealizeWindow = xwl_unrealize_window;
dixScreenHookWindowDestroy(pScreen, xwl_window_destroy);
dixScreenHookClose(pScreen, xwl_close_screen);
xwl_screen->ChangeWindowAttributes = pScreen->ChangeWindowAttributes;
pScreen->ChangeWindowAttributes = xwl_change_window_attributes;
xwl_screen->ClipNotify = pScreen->ClipNotify;
pScreen->ClipNotify = xwl_clip_notify;
xwl_screen->ConfigNotify = pScreen->ConfigNotify;
pScreen->ConfigNotify = xwl_config_notify;
xwl_screen->ResizeWindow = pScreen->ResizeWindow;
pScreen->ResizeWindow = xwl_resize_window;
xwl_screen->MoveWindow = pScreen->MoveWindow;
pScreen->MoveWindow = xwl_move_window;
xwl_screen->SetWindowPixmap = pScreen->SetWindowPixmap;
pScreen->SetWindowPixmap = xwl_window_set_window_pixmap;
xwl_screen->SetShape = pScreen->SetShape;
pScreen->SetShape = xwl_set_shape;
pScreen->CursorWarpedTo = xwl_cursor_warped_to;
pScreen->CursorConfinedTo = xwl_cursor_confined_to;
xwl_screen->allow_commits_prop = MakeAtom(allow_commits,
strlen(allow_commits),
TRUE);
if (xwl_screen->allow_commits_prop == BAD_RESOURCE)
return FALSE;
AddCallback(&PropertyStateCallback, xwl_property_callback, pScreen);
AddCallback(&RootWindowFinalizeCallback, xwl_root_window_finalized_callback, pScreen);
XaceRegisterCallback(XACE_PROPERTY_ACCESS, xwl_access_property_callback, pScreen);
xwl_screen_setup_custom_vector(xwl_screen);
xwl_screen_roundtrip(xwl_screen);
return ret;
}
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