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xserver-multidpi/hw/xwayland/xwayland.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.h"
#include <stdio.h>
#include <X11/Xatom.h>
#include <selection.h>
#include <micmap.h>
#include <misyncshm.h>
#include <compositeext.h>
#include <compint.h>
#include <glx_extinit.h>
#include <os.h>
#include <xserver_poll.h>
#include <propertyst.h>
#ifdef XF86VIDMODE
#include <X11/extensions/xf86vmproto.h>
_X_EXPORT Bool noXFree86VidModeExtension;
#endif
void
ddxGiveUp(enum ExitCode error)
{
}
void
AbortDDX(enum ExitCode error)
{
ddxGiveUp(error);
}
void
OsVendorInit(void)
{
if (serverGeneration == 1)
ForceClockId(CLOCK_MONOTONIC);
}
void
OsVendorFatalError(const char *f, va_list args)
{
}
#if defined(DDXBEFORERESET)
void
ddxBeforeReset(void)
{
return;
}
#endif
_X_NORETURN
static void _X_ATTRIBUTE_PRINTF(1, 2)
xwl_give_up(const char *f, ...)
{
va_list args;
va_start(args, f);
VErrorFSigSafe(f, args);
va_end(args);
CloseWellKnownConnections();
OsCleanup(TRUE);
fflush(stderr);
exit(1);
}
void
ddxUseMsg(void)
{
ErrorF("-rootless run rootless, requires wm support\n");
ErrorF("-wm fd create X client for wm on given fd\n");
ErrorF("-listen fd add give fd as a listen socket\n");
#ifdef XWL_HAS_EGLSTREAM
ErrorF("-eglstream use eglstream backend for nvidia GPUs\n");
#endif
}
int
ddxProcessArgument(int argc, char *argv[], int i)
{
if (strcmp(argv[i], "-rootless") == 0) {
return 1;
}
else if (strcmp(argv[i], "-listen") == 0) {
NoListenAll = TRUE;
return 2;
}
else if (strcmp(argv[i], "-wm") == 0) {
return 2;
}
else if (strcmp(argv[i], "-shm") == 0) {
return 1;
}
#ifdef XWL_HAS_EGLSTREAM
else if (strcmp(argv[i], "-eglstream") == 0) {
return 1;
}
#endif
return 0;
}
static DevPrivateKeyRec xwl_window_private_key;
static DevPrivateKeyRec xwl_screen_private_key;
static DevPrivateKeyRec xwl_pixmap_private_key;
static struct xwl_window *
xwl_window_get(WindowPtr window)
{
return dixLookupPrivate(&window->devPrivates, &xwl_window_private_key);
}
struct xwl_screen *
xwl_screen_get(ScreenPtr screen)
{
return dixLookupPrivate(&screen->devPrivates, &xwl_screen_private_key);
}
static void
xwl_window_set_allow_commits(struct xwl_window *xwl_window, Bool allow,
const char *debug_msg)
{
xwl_window->allow_commits = allow;
DebugF("xwayland: win %d allow_commits = %d (%s)\n",
xwl_window->window->drawable.id, allow, debug_msg);
}
static void
xwl_window_set_allow_commits_from_property(struct xwl_window *xwl_window,
PropertyPtr prop)
{
static Bool warned = FALSE;
CARD32 *propdata;
if (prop->propertyName != xwl_window->xwl_screen->allow_commits_prop)
FatalError("Xwayland internal error: prop mismatch in %s.\n", __func__);
if (prop->type != XA_CARDINAL || prop->format != 32 || prop->size != 1) {
/* Not properly set, so fall back to safe and glitchy */
xwl_window_set_allow_commits(xwl_window, TRUE, "WM fault");
if (!warned) {
LogMessage(X_WARNING, "Window manager is misusing property %s.\n",
NameForAtom(prop->propertyName));
warned = TRUE;
}
return;
}
propdata = prop->data;
xwl_window_set_allow_commits(xwl_window, !!propdata[0], "from property");
}
static void
xwl_window_property_allow_commits(struct xwl_window *xwl_window,
PropertyStateRec *propstate)
{
Bool old_allow_commits = xwl_window->allow_commits;
switch (propstate->state) {
case PropertyNewValue:
xwl_window_set_allow_commits_from_property(xwl_window, propstate->prop);
break;
case PropertyDelete:
xwl_window_set_allow_commits(xwl_window, TRUE, "property deleted");
break;
default:
break;
}
/* If allow_commits turned from off to on, discard any frame
* callback we might be waiting for so that a new buffer is posted
* immediately through block_handler() if there is damage to post.
*/
if (!old_allow_commits && xwl_window->allow_commits) {
if (xwl_window->frame_callback) {
wl_callback_destroy(xwl_window->frame_callback);
xwl_window->frame_callback = NULL;
}
}
}
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_property_allow_commits(xwl_window, rec);
}
static Bool
xwl_close_screen(ScreenPtr screen)
{
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;
DeleteCallback(&PropertyStateCallback, xwl_property_callback, screen);
xorg_list_for_each_entry_safe(xwl_output, next_xwl_output,
&xwl_screen->output_list, link)
xwl_output_destroy(xwl_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);
RemoveNotifyFd(xwl_screen->wayland_fd);
wl_display_disconnect(xwl_screen->display);
screen->CloseScreen = xwl_screen->CloseScreen;
free(xwl_screen);
return screen->CloseScreen(screen);
}
struct xwl_window *
xwl_window_from_window(WindowPtr window)
{
struct xwl_window *xwl_window;
while (window) {
xwl_window = xwl_window_get(window);
if (xwl_window)
return xwl_window;
window = window->parent;
}
return NULL;
}
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->focus_window) {
focus = xwl_seat->focus_window->window;
/* 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_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 (!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 && xwl_seat->focus_window) {
/* Allow confining on InputOnly windows, but only if the geometry
* is the same than the focus window.
*/
if (window->drawable.class == InputOnly) {
DebugF("Confine on InputOnly window, assuming pointer focus\n");
xwl_window = xwl_seat->focus_window;
}
}
if (!xwl_window)
return;
xwl_seat_confine_pointer(xwl_seat, xwl_window);
}
static void
damage_report(DamagePtr pDamage, RegionPtr pRegion, void *data)
{
struct xwl_window *xwl_window = data;
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
xorg_list_add(&xwl_window->link_damage, &xwl_screen->damage_window_list);
}
static void
damage_destroy(DamagePtr pDamage, void *data)
{
}
static void
shell_surface_ping(void *data,
struct wl_shell_surface *shell_surface, uint32_t serial)
{
wl_shell_surface_pong(shell_surface, serial);
}
static void
shell_surface_configure(void *data,
struct wl_shell_surface *wl_shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
}
static void
shell_surface_popup_done(void *data, struct wl_shell_surface *wl_shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
shell_surface_ping,
shell_surface_configure,
shell_surface_popup_done
};
void
xwl_pixmap_set_private(PixmapPtr pixmap, struct xwl_pixmap *xwl_pixmap)
{
dixSetPrivate(&pixmap->devPrivates, &xwl_pixmap_private_key, xwl_pixmap);
}
struct xwl_pixmap *
xwl_pixmap_get(PixmapPtr pixmap)
{
return dixLookupPrivate(&pixmap->devPrivates, &xwl_pixmap_private_key);
}
static void
xwl_window_init_allow_commits(struct xwl_window *xwl_window)
{
PropertyPtr prop = NULL;
int ret;
ret = dixLookupProperty(&prop, xwl_window->window,
xwl_window->xwl_screen->allow_commits_prop,
serverClient, DixReadAccess);
if (ret == Success && prop)
xwl_window_set_allow_commits_from_property(xwl_window, prop);
else
xwl_window_set_allow_commits(xwl_window, TRUE, "no property");
}
static void
send_surface_id_event(struct xwl_window *xwl_window)
{
static const char atom_name[] = "WL_SURFACE_ID";
static Atom type_atom;
DeviceIntPtr dev;
xEvent e;
if (type_atom == None)
type_atom = MakeAtom(atom_name, strlen(atom_name), TRUE);
e.u.u.type = ClientMessage;
e.u.u.detail = 32;
e.u.clientMessage.window = xwl_window->window->drawable.id;
e.u.clientMessage.u.l.type = type_atom;
e.u.clientMessage.u.l.longs0 =
wl_proxy_get_id((struct wl_proxy *) xwl_window->surface);
e.u.clientMessage.u.l.longs1 = 0;
e.u.clientMessage.u.l.longs2 = 0;
e.u.clientMessage.u.l.longs3 = 0;
e.u.clientMessage.u.l.longs4 = 0;
dev = PickPointer(serverClient);
DeliverEventsToWindow(dev, xwl_window->xwl_screen->screen->root,
&e, 1, SubstructureRedirectMask, NullGrab);
}
static Bool
xwl_realize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
struct wl_region *region;
Bool ret;
xwl_screen = xwl_screen_get(screen);
screen->RealizeWindow = xwl_screen->RealizeWindow;
ret = (*screen->RealizeWindow) (window);
xwl_screen->RealizeWindow = screen->RealizeWindow;
screen->RealizeWindow = xwl_realize_window;
if (xwl_screen->rootless && !window->parent) {
BoxRec box = { 0, 0, xwl_screen->width, xwl_screen->height };
RegionReset(&window->winSize, &box);
RegionNull(&window->clipList);
RegionNull(&window->borderClip);
}
if (xwl_screen->rootless) {
if (window->redirectDraw != RedirectDrawManual)
return ret;
}
else {
if (window->parent)
return ret;
}
xwl_window = calloc(1, sizeof *xwl_window);
if (xwl_window == NULL)
return FALSE;
xwl_window->xwl_screen = xwl_screen;
xwl_window->window = window;
xwl_window->surface = wl_compositor_create_surface(xwl_screen->compositor);
if (xwl_window->surface == NULL) {
ErrorF("wl_display_create_surface failed\n");
goto err;
}
if (!xwl_screen->rootless) {
xwl_window->shell_surface =
wl_shell_get_shell_surface(xwl_screen->shell, xwl_window->surface);
if (xwl_window->shell_surface == NULL) {
ErrorF("Failed creating shell surface\n");
goto err_surf;
}
wl_shell_surface_add_listener(xwl_window->shell_surface,
&shell_surface_listener, xwl_window);
wl_shell_surface_set_toplevel(xwl_window->shell_surface);
region = wl_compositor_create_region(xwl_screen->compositor);
if (region == NULL) {
ErrorF("Failed creating region\n");
goto err_surf;
}
wl_region_add(region, 0, 0,
window->drawable.width, window->drawable.height);
wl_surface_set_opaque_region(xwl_window->surface, region);
wl_region_destroy(region);
}
#ifdef GLAMOR_HAS_GBM
if (xwl_screen->present) {
xwl_window->present_crtc_fake = RRCrtcCreate(xwl_screen->screen, xwl_window);
xwl_window->present_msc = 1;
xwl_window->present_ust = GetTimeInMicros();
xorg_list_init(&xwl_window->present_event_list);
xorg_list_init(&xwl_window->present_release_queue);
}
#endif
wl_display_flush(xwl_screen->display);
send_surface_id_event(xwl_window);
wl_surface_set_user_data(xwl_window->surface, xwl_window);
xwl_window->damage =
DamageCreate(damage_report, damage_destroy, DamageReportNonEmpty,
FALSE, screen, xwl_window);
if (xwl_window->damage == NULL) {
ErrorF("Failed creating damage\n");
goto err_surf;
}
compRedirectWindow(serverClient, window, CompositeRedirectManual);
DamageRegister(&window->drawable, xwl_window->damage);
DamageSetReportAfterOp(xwl_window->damage, TRUE);
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, xwl_window);
xorg_list_init(&xwl_window->link_damage);
xwl_window_init_allow_commits(xwl_window);
return ret;
err_surf:
if (xwl_window->shell_surface)
wl_shell_surface_destroy(xwl_window->shell_surface);
wl_surface_destroy(xwl_window->surface);
err:
free(xwl_window);
return FALSE;
}
static Bool
xwl_unrealize_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
struct xwl_screen *xwl_screen;
struct xwl_window *xwl_window;
struct xwl_seat *xwl_seat;
Bool ret;
xwl_screen = xwl_screen_get(screen);
xorg_list_for_each_entry(xwl_seat, &xwl_screen->seat_list, link) {
if (xwl_seat->focus_window && xwl_seat->focus_window->window == window)
xwl_seat->focus_window = NULL;
if (xwl_seat->tablet_focus_window && xwl_seat->tablet_focus_window->window == window)
xwl_seat->tablet_focus_window = NULL;
if (xwl_seat->last_xwindow == window)
xwl_seat->last_xwindow = NullWindow;
if (xwl_seat->cursor_confinement_window &&
xwl_seat->cursor_confinement_window->window == window)
xwl_seat_unconfine_pointer(xwl_seat);
if (xwl_seat->pointer_warp_emulator &&
xwl_seat->pointer_warp_emulator->locked_window &&
xwl_seat->pointer_warp_emulator->locked_window->window == window)
xwl_seat_destroy_pointer_warp_emulator(xwl_seat);
xwl_seat_clear_touch(xwl_seat, window);
}
compUnredirectWindow(serverClient, window, CompositeRedirectManual);
#ifdef GLAMOR_HAS_GBM
xwl_window = xwl_window_from_window(window);
if (xwl_window && xwl_screen->present)
xwl_present_cleanup(xwl_window, window);
#endif
screen->UnrealizeWindow = xwl_screen->UnrealizeWindow;
ret = (*screen->UnrealizeWindow) (window);
xwl_screen->UnrealizeWindow = screen->UnrealizeWindow;
screen->UnrealizeWindow = xwl_unrealize_window;
xwl_window = xwl_window_get(window);
if (!xwl_window)
return ret;
wl_surface_destroy(xwl_window->surface);
xorg_list_del(&xwl_window->link_damage);
DamageUnregister(xwl_window->damage);
DamageDestroy(xwl_window->damage);
if (xwl_window->frame_callback)
wl_callback_destroy(xwl_window->frame_callback);
#ifdef GLAMOR_HAS_GBM
if (xwl_window->present_crtc_fake)
RRCrtcDestroy(xwl_window->present_crtc_fake);
#endif
free(xwl_window);
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, NULL);
return ret;
}
static Bool
xwl_save_screen(ScreenPtr pScreen, int on)
{
return TRUE;
}
static void
frame_callback(void *data,
struct wl_callback *callback,
uint32_t time)
{
struct xwl_window *xwl_window = data;
wl_callback_destroy (xwl_window->frame_callback);
xwl_window->frame_callback = NULL;
}
static const struct wl_callback_listener frame_listener = {
frame_callback
};
static void
xwl_window_post_damage(struct xwl_window *xwl_window)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
RegionPtr region;
BoxPtr box;
struct wl_buffer *buffer;
PixmapPtr pixmap;
int i;
assert(!xwl_window->frame_callback);
region = DamageRegion(xwl_window->damage);
pixmap = (*xwl_screen->screen->GetWindowPixmap) (xwl_window->window);
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor)
buffer = xwl_glamor_pixmap_get_wl_buffer(pixmap,
pixmap->drawable.width,
pixmap->drawable.height,
NULL);
else
#endif
buffer = xwl_shm_pixmap_get_wl_buffer(pixmap);
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor)
xwl_glamor_post_damage(xwl_window, pixmap, region);
#endif
wl_surface_attach(xwl_window->surface, buffer, 0, 0);
/* Arbitrary limit to try to avoid flooding the Wayland
* connection. If we flood it too much anyway, this could
* abort in libwayland-client.
*/
if (RegionNumRects(region) > 256) {
box = RegionExtents(region);
wl_surface_damage(xwl_window->surface, box->x1, box->y1,
box->x2 - box->x1, box->y2 - box->y1);
} else {
box = RegionRects(region);
for (i = 0; i < RegionNumRects(region); i++, box++)
wl_surface_damage(xwl_window->surface, box->x1, box->y1,
box->x2 - box->x1, box->y2 - box->y1);
}
xwl_window->frame_callback = wl_surface_frame(xwl_window->surface);
wl_callback_add_listener(xwl_window->frame_callback, &frame_listener, xwl_window);
wl_surface_commit(xwl_window->surface);
DamageEmpty(xwl_window->damage);
xorg_list_del(&xwl_window->link_damage);
}
static void
xwl_screen_post_damage(struct xwl_screen *xwl_screen)
{
struct xwl_window *xwl_window, *next_xwl_window;
xorg_list_for_each_entry_safe(xwl_window, next_xwl_window,
&xwl_screen->damage_window_list, link_damage) {
#ifdef GLAMOR_HAS_GBM
/* Present on the main surface. So don't commit here as well. */
if (xwl_window->present_window)
continue;
#endif
/* 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;
#ifdef XWL_HAS_GLAMOR
if (!xwl_glamor_allow_commits(xwl_window))
continue;
#endif
xwl_window_post_damage(xwl_window);
}
}
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") == 0) {
xwl_screen->compositor =
wl_registry_bind(registry, id, &wl_compositor_interface, 1);
}
else if (strcmp(interface, "wl_shm") == 0) {
xwl_screen->shm = wl_registry_bind(registry, id, &wl_shm_interface, 1);
}
else if (strcmp(interface, "wl_shell") == 0) {
xwl_screen->shell =
wl_registry_bind(registry, id, &wl_shell_interface, 1);
}
else if (strcmp(interface, "wl_output") == 0 && version >= 2) {
if (xwl_output_create(xwl_screen, id))
xwl_screen->expecting_event++;
}
else if (strcmp(interface, "zxdg_output_manager_v1") == 0) {
xwl_screen->xdg_output_manager =
wl_registry_bind(registry, id, &zxdg_output_manager_v1_interface, 1);
xwl_screen_init_xdg_output(xwl_screen);
}
#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;
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;
}
}
}
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);
}
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;
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);
xwl_dispatch_events (xwl_screen);
}
void
xwl_sync_events (struct xwl_screen *xwl_screen)
{
xwl_dispatch_events (xwl_screen);
xwl_read_events (xwl_screen);
}
static CARD32
add_client_fd(OsTimerPtr timer, CARD32 time, void *arg)
{
struct xwl_screen *xwl_screen = arg;
if (!AddClientOnOpenFD(xwl_screen->wm_fd))
FatalError("Failed to add wm client\n");
TimerFree(timer);
return 0;
}
static void
listen_on_fds(struct xwl_screen *xwl_screen)
{
int i;
for (i = 0; i < xwl_screen->listen_fd_count; i++)
ListenOnOpenFD(xwl_screen->listen_fds[i], FALSE);
}
static void
wm_selection_callback(CallbackListPtr *p, void *data, void *arg)
{
SelectionInfoRec *info = arg;
struct xwl_screen *xwl_screen = data;
static const char atom_name[] = "WM_S0";
static Atom atom_wm_s0;
if (atom_wm_s0 == None)
atom_wm_s0 = MakeAtom(atom_name, strlen(atom_name), TRUE);
if (info->selection->selection != atom_wm_s0 ||
info->kind != SelectionSetOwner)
return;
listen_on_fds(xwl_screen);
DeleteCallback(&SelectionCallback, wm_selection_callback, xwl_screen);
}
static 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;
#ifdef XWL_HAS_EGLSTREAM
Bool use_eglstreams = FALSE;
#endif
xwl_screen = calloc(1, sizeof *xwl_screen);
if (xwl_screen == NULL)
return FALSE;
xwl_screen->wm_fd = -1;
if (!dixRegisterPrivateKey(&xwl_screen_private_key, PRIVATE_SCREEN, 0))
return FALSE;
if (!dixRegisterPrivateKey(&xwl_window_private_key, PRIVATE_WINDOW, 0))
return FALSE;
if (!dixRegisterPrivateKey(&xwl_pixmap_private_key, PRIVATE_PIXMAP, 0))
return FALSE;
dixSetPrivate(&pScreen->devPrivates, &xwl_screen_private_key, xwl_screen);
xwl_screen->screen = pScreen;
#ifdef XWL_HAS_GLAMOR
xwl_screen->glamor = 1;
#endif
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-rootless") == 0) {
xwl_screen->rootless = 1;
}
else if (strcmp(argv[i], "-wm") == 0) {
xwl_screen->wm_fd = atoi(argv[i + 1]);
i++;
TimerSet(NULL, 0, 1, add_client_fd, xwl_screen);
}
else if (strcmp(argv[i], "-listen") == 0) {
if (xwl_screen->listen_fd_count ==
ARRAY_SIZE(xwl_screen->listen_fds))
FatalError("Too many -listen arguments given, max is %ld\n",
ARRAY_SIZE(xwl_screen->listen_fds));
xwl_screen->listen_fds[xwl_screen->listen_fd_count++] =
atoi(argv[i + 1]);
i++;
}
else if (strcmp(argv[i], "-shm") == 0) {
xwl_screen->glamor = 0;
}
#ifdef XWL_HAS_EGLSTREAM
else if (strcmp(argv[i], "-eglstream") == 0) {
use_eglstreams = TRUE;
}
#endif
}
#ifdef XWL_HAS_GLAMOR
if (xwl_screen->glamor) {
#ifdef XWL_HAS_EGLSTREAM
if (use_eglstreams) {
if (!xwl_glamor_init_eglstream(xwl_screen)) {
ErrorF("xwayland glamor: failed to setup eglstream backend, falling back to swaccel\n");
xwl_screen->glamor = 0;
}
} else
#endif
if (!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;
if (xwl_screen->listen_fd_count > 0) {
if (xwl_screen->wm_fd >= 0)
AddCallback(&SelectionCallback, wm_selection_callback, xwl_screen);
else
listen_on_fds(xwl_screen);
}
xorg_list_init(&xwl_screen->output_list);
xorg_list_init(&xwl_screen->seat_list);
xorg_list_init(&xwl_screen->damage_window_list);
xwl_screen->depth = 24;
xwl_screen->display = wl_display_connect(NULL);
if (xwl_screen->display == NULL) {
ErrorF("could not connect to wayland server\n");
return FALSE;
}
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);
ret = wl_display_roundtrip(xwl_screen->display);
if (ret == -1) {
ErrorF("could not connect to wayland server\n");
return FALSE;
}
while (xwl_screen->expecting_event > 0)
wl_display_roundtrip(xwl_screen->display);
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->width, xwl_screen->height,
96, 96, 0,
BitsPerPixel(xwl_screen->depth));
if (!ret)
return FALSE;
fbPictureInit(pScreen, 0, 0);
#ifdef HAVE_XSHMFENCE
if (!miSyncShmScreenInit(pScreen))
return FALSE;
#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->SaveScreen = xwl_save_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 = 0;
}
if (xwl_screen->glamor && xwl_screen->rootless)
xwl_screen->present = xwl_present_init(pScreen);
#endif
if (!xwl_screen->glamor) {
xwl_screen->CreateScreenResources = pScreen->CreateScreenResources;
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;
xwl_screen->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = xwl_close_screen;
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);
return ret;
}
_X_NORETURN
static void _X_ATTRIBUTE_PRINTF(1, 0)
xwl_log_handler(const char *format, va_list args)
{
char msg[256];
vsnprintf(msg, sizeof msg, format, args);
FatalError("%s", msg);
}
static const ExtensionModule xwayland_extensions[] = {
#ifdef XF86VIDMODE
{ xwlVidModeExtensionInit, XF86VIDMODENAME, &noXFree86VidModeExtension },
#endif
};
void
InitOutput(ScreenInfo * screen_info, int argc, char **argv)
{
int depths[] = { 1, 4, 8, 15, 16, 24, 32 };
int bpp[] = { 1, 8, 8, 16, 16, 32, 32 };
int i;
for (i = 0; i < ARRAY_SIZE(depths); i++) {
screen_info->formats[i].depth = depths[i];
screen_info->formats[i].bitsPerPixel = bpp[i];
screen_info->formats[i].scanlinePad = BITMAP_SCANLINE_PAD;
}
screen_info->imageByteOrder = IMAGE_BYTE_ORDER;
screen_info->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
screen_info->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
screen_info->bitmapBitOrder = BITMAP_BIT_ORDER;
screen_info->numPixmapFormats = ARRAY_SIZE(depths);
if (serverGeneration == 1)
LoadExtensionList(xwayland_extensions,
ARRAY_SIZE(xwayland_extensions), FALSE);
/* Cast away warning from missing printf annotation for
* wl_log_func_t. Wayland 1.5 will have the annotation, so we can
* remove the cast and require that when it's released. */
wl_log_set_handler_client((void *) xwl_log_handler);
if (AddScreen(xwl_screen_init, argc, argv) == -1) {
FatalError("Couldn't add screen\n");
}
xorgGlxCreateVendor();
LocalAccessScopeUser();
}
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