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d8ec33fe05
xserver-multidpi/hw/xwayland/xwayland.c
Adam Jackson d8ec33fe05 glx: Use vnd layer for dispatch (v4) 
The big change here is MakeCurrent and context tag tracking. We now
delegate context tags entirely to the vnd layer, and simply store a
pointer to the context state as the tag data. If a context is deleted
while it's current, we allocate a fake ID for the context and move the
context state there, so the tag data still points to a real context. As
a result we can stop trying so hard to detach the client from contexts
at disconnect time and just let resource destruction handle it.

Since vnd handles all the MakeCurrent protocol now, our request handlers
for it can just be return BadImplementation. We also remove a bunch of
LEGAL_NEW_RESOURCE, because now by the time we're called vnd has already
allocated its tracking resource on that XID.

v2: Update to match v2 of the vnd import, and remove more redundant work
like request length checks.

v3: Add/remove the XID map from the vendor private thunk, not the
backend. (Kyle Brenneman)

v4: Fix deletion of ghost contexts (Kyle Brenneman)

Signed-off-by: Adam Jackson <ajax@redhat.com>
2018-02-14 17:04:44 -05:00

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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");
}
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;
}
return 0;
}
static DevPrivateKeyRec xwl_window_private_key;
static DevPrivateKeyRec xwl_screen_private_key;
static DevPrivateKeyRec xwl_pixmap_private_key;
struct xwl_window *
xwl_window_of_top(WindowPtr window)
{
return dixLookupPrivate(&window->devPrivates, &xwl_window_private_key);
}
static struct xwl_window *
xwl_window_of_self(WindowPtr window)
{
struct xwl_window *xwl_window = dixLookupPrivate(&window->devPrivates, &xwl_window_private_key);
if (xwl_window && xwl_window->window == window)
return xwl_window;
else
return NULL;
}
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_of_self(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);
}
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);
xwl_window = xwl_window_of_top(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_of_top(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 create_xwl_window = TRUE;
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)
create_xwl_window = FALSE;
}
else {
if (window->parent)
create_xwl_window = FALSE;
}
if (!create_xwl_window) {
if (window->parent)
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, xwl_window_of_top(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);
}
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);
screen->UnrealizeWindow = xwl_screen->UnrealizeWindow;
ret = (*screen->UnrealizeWindow) (window);
xwl_screen->UnrealizeWindow = screen->UnrealizeWindow;
screen->UnrealizeWindow = xwl_unrealize_window;
xwl_window = xwl_window_of_self(window);
if (!xwl_window) {
dixSetPrivate(&window->devPrivates, &xwl_window_private_key, NULL);
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);
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 GLAMOR_HAS_GBM
if (xwl_screen->glamor)
buffer = xwl_glamor_pixmap_get_wl_buffer(pixmap);
else
#endif
buffer = xwl_shm_pixmap_get_wl_buffer(pixmap);
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) {
/* 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);
}
}
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 GLAMOR_HAS_GBM
else if (xwl_screen->glamor &&
strcmp(interface, "wl_drm") == 0 && version >= 2) {
xwl_screen_init_glamor(xwl_screen, id, 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;
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 GLAMOR_HAS_GBM
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;
}
}
/* 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 GLAMOR_HAS_GBM
if (xwl_screen->glamor && !xwl_glamor_init(xwl_screen)) {
ErrorF("Failed to initialize glamor, falling back to sw\n");
xwl_screen->glamor = 0;
}
#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 GLXEXT
{ GlxExtensionInit, "GLX", &noGlxExtension },
#endif
#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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