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wlserver.cpp
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wlserver.cpp
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#include <xkbcommon/xkbcommon-keysyms.h>
#define _GNU_SOURCE 1
#include <assert.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>
#include <string.h>
#include <poll.h>
#include <linux/input-event-codes.h>
#include <X11/extensions/XTest.h>
#include <xkbcommon/xkbcommon.h>
#include <wayland-server-core.h>
extern "C" {
#define static
#define class class_
#include <wlr/backend.h>
#include <wlr/backend/headless.h>
#include <wlr/backend/multi.h>
#include <wlr/backend/libinput.h>
#include <wlr/interfaces/wlr_input_device.h>
#include <wlr/interfaces/wlr_keyboard.h>
#include <wlr/render/wlr_renderer.h>
#include <wlr/types/wlr_keyboard.h>
#include <wlr/types/wlr_pointer.h>
#include <wlr/types/wlr_touch.h>
#include <wlr/xwayland.h>
#include <wlr/util/log.h>
#undef static
#undef class
}
#include "gamescope-xwayland-protocol.h"
#include "gamescope-pipewire-protocol.h"
#include "gamescope-tearing-control-unstable-v1-protocol.h"
#include "wlserver.hpp"
#include "drm.hpp"
#include "main.hpp"
#include "steamcompmgr.hpp"
#include "log.hpp"
#include "ime.hpp"
#include "xwayland_ctx.hpp"
#if HAVE_PIPEWIRE
#include "pipewire.hpp"
#endif
#include "gpuvis_trace_utils.h"
#include <algorithm>
#include <list>
static LogScope wl_log("wlserver");
static struct wlserver_t wlserver = {};
struct wlserver_content_override {
struct wlr_surface *surface;
uint32_t x11_window;
struct wl_listener surface_destroy_listener;
};
enum wlserver_touch_click_mode g_nDefaultTouchClickMode = WLSERVER_TOUCH_CLICK_LEFT;
enum wlserver_touch_click_mode g_nTouchClickMode = g_nDefaultTouchClickMode;
static struct wl_list pending_surfaces = {0};
static void wlserver_x11_surface_info_set_wlr( struct wlserver_x11_surface_info *surf, struct wlr_surface *wlr_surf );
static wlserver_wl_surface_info *get_wl_surface_info(struct wlr_surface *wlr_surf);
extern const struct wlr_surface_role xwayland_surface_role;
std::vector<ResListEntry_t> gamescope_xwayland_server_t::retrieve_commits()
{
std::vector<ResListEntry_t> commits;
{
std::lock_guard<std::mutex> lock( wayland_commit_lock );
commits = std::move(wayland_commit_queue);
}
return commits;
}
void gamescope_xwayland_server_t::wayland_commit(struct wlr_surface *surf, struct wlr_buffer *buf)
{
{
std::lock_guard<std::mutex> lock( wayland_commit_lock );
ResListEntry_t newEntry = {
.surf = surf,
.buf = buf,
};
wayland_commit_queue.push_back( newEntry );
}
nudge_steamcompmgr();
}
struct PendingCommit_t
{
struct wlr_surface *surf;
struct wlr_buffer *buf;
};
std::list<PendingCommit_t> g_PendingCommits;
void xwayland_surface_role_commit(struct wlr_surface *wlr_surface) {
assert(wlr_surface->role == &xwayland_surface_role);
uint32_t committed = wlr_surface->current.committed;
wlr_surface->current.committed = 0;
if (!(committed & WLR_SURFACE_STATE_BUFFER)) {
return;
}
VulkanWlrTexture_t *tex = (VulkanWlrTexture_t *) wlr_surface_get_texture( wlr_surface );
if ( tex == NULL )
{
return;
}
struct wlr_buffer *buf = wlr_buffer_lock( tex->buf );
gpuvis_trace_printf( "xwayland_surface_role_commit wlr_surface %p", wlr_surface );
wlserver_x11_surface_info *wlserver_x11_surface_info = get_wl_surface_info(wlr_surface)->x11_surface;
if (wlserver_x11_surface_info)
{
assert(wlserver_x11_surface_info->xwayland_server);
wlserver_x11_surface_info->xwayland_server->wayland_commit( wlr_surface, buf );
}
else
{
g_PendingCommits.push_back(PendingCommit_t{ wlr_surface, buf });
}
}
static void xwayland_surface_role_precommit(struct wlr_surface *wlr_surface) {
assert(wlr_surface->role == &xwayland_surface_role);
}
const struct wlr_surface_role xwayland_surface_role = {
.name = "wlr_xwayland_surface",
.commit = xwayland_surface_role_commit,
.precommit = xwayland_surface_role_precommit,
};
void gamescope_xwayland_server_t::on_xwayland_ready(void *data)
{
xwayland_ready = true;
if (!xwayland_server->options.no_touch_pointer_emulation)
wl_log.infof("Xwayland doesn't support -noTouchPointerEmulation, touch events might get duplicated");
dpy = XOpenDisplay( get_nested_display_name() );
}
void gamescope_xwayland_server_t::xwayland_ready_callback(struct wl_listener *listener, void *data)
{
gamescope_xwayland_server_t *server = wl_container_of( listener, server, xwayland_ready_listener );
server->on_xwayland_ready(data);
}
static void bump_input_counter()
{
inputCounter++;
nudge_steamcompmgr();
}
static void wlserver_handle_modifiers(struct wl_listener *listener, void *data)
{
struct wlserver_keyboard *keyboard = wl_container_of( listener, keyboard, modifiers );
wlr_seat_set_keyboard( wlserver.wlr.seat, keyboard->device );
wlr_seat_keyboard_notify_modifiers( wlserver.wlr.seat, &keyboard->device->keyboard->modifiers );
bump_input_counter();
}
static void wlserver_handle_key(struct wl_listener *listener, void *data)
{
struct wlserver_keyboard *keyboard = wl_container_of( listener, keyboard, key );
struct wlr_event_keyboard_key *event = (struct wlr_event_keyboard_key *) data;
xkb_keycode_t keycode = event->keycode + 8;
xkb_keysym_t keysym = xkb_state_key_get_one_sym(keyboard->device->keyboard->xkb_state, keycode);
if (wlserver.wlr.session && event->state == WL_KEYBOARD_KEY_STATE_PRESSED && keysym >= XKB_KEY_XF86Switch_VT_1 && keysym <= XKB_KEY_XF86Switch_VT_12) {
unsigned vt = keysym - XKB_KEY_XF86Switch_VT_1 + 1;
wlr_session_change_vt(wlserver.wlr.session, vt);
return;
}
if ( ( event->state == WL_KEYBOARD_KEY_STATE_PRESSED || event->state == WL_KEYBOARD_KEY_STATE_RELEASED ) && ( keysym == XKB_KEY_XF86AudioLowerVolume || keysym == XKB_KEY_XF86AudioRaiseVolume ) )
{
// Always send volume+/- to root server only, to avoid it reaching the game.
struct wlr_surface *old_kb_surf = wlserver.kb_focus_surface;
struct wlr_surface *new_kb_surf = steamcompmgr_get_server_input_surface( 0 );
if ( new_kb_surf )
{
wlserver_keyboardfocus( new_kb_surf );
wlr_seat_set_keyboard( wlserver.wlr.seat, keyboard->device );
wlr_seat_keyboard_notify_key( wlserver.wlr.seat, event->time_msec, event->keycode, event->state );
wlserver_keyboardfocus( old_kb_surf );
return;
}
}
wlr_seat_set_keyboard( wlserver.wlr.seat, keyboard->device);
wlr_seat_keyboard_notify_key( wlserver.wlr.seat, event->time_msec, event->keycode, event->state );
bump_input_counter();
}
static void wlserver_handle_pointer_motion(struct wl_listener *listener, void *data)
{
struct wlr_event_pointer_motion *event = (struct wlr_event_pointer_motion *) data;
// TODO: Pick the xwayland_server with active focus
auto server = steamcompmgr_get_focused_server();
if ( server != NULL )
{
server->ctx->accum_x += event->unaccel_dx;
server->ctx->accum_y += event->unaccel_dy;
float dx, dy;
server->ctx->accum_x = modf(server->ctx->accum_x, &dx);
server->ctx->accum_y = modf(server->ctx->accum_y, &dy);
XTestFakeRelativeMotionEvent( server->get_xdisplay(), int(dx), int(dy), CurrentTime );
XFlush( server->get_xdisplay() );
}
}
static void wlserver_handle_pointer_button(struct wl_listener *listener, void *data)
{
struct wlserver_pointer *pointer = wl_container_of( listener, pointer, button );
struct wlr_event_pointer_button *event = (struct wlr_event_pointer_button *) data;
wlr_seat_pointer_notify_button( wlserver.wlr.seat, event->time_msec, event->button, event->state );
}
static void wlserver_handle_pointer_axis(struct wl_listener *listener, void *data)
{
struct wlserver_pointer *pointer = wl_container_of( listener, pointer, axis );
struct wlr_event_pointer_axis *event = (struct wlr_event_pointer_axis *) data;
wlr_seat_pointer_notify_axis( wlserver.wlr.seat, event->time_msec, event->orientation, event->delta, event->delta_discrete, event->source );
}
static void wlserver_handle_pointer_frame(struct wl_listener *listener, void *data)
{
wlr_seat_pointer_notify_frame( wlserver.wlr.seat );
bump_input_counter();
}
static inline uint32_t steamcompmgr_button_to_wlserver_button( int button )
{
switch ( button )
{
default:
case WLSERVER_TOUCH_CLICK_HOVER:
return 0;
case WLSERVER_TOUCH_CLICK_LEFT:
return BTN_LEFT;
case WLSERVER_TOUCH_CLICK_RIGHT:
return BTN_RIGHT;
case WLSERVER_TOUCH_CLICK_MIDDLE:
return BTN_MIDDLE;
}
}
std::atomic<bool> g_bPendingTouchMovement = { false };
static void wlserver_handle_touch_down(struct wl_listener *listener, void *data)
{
struct wlserver_touch *touch = wl_container_of( listener, touch, down );
struct wlr_event_touch_down *event = (struct wlr_event_touch_down *) data;
wlserver_touchdown( event->x, event->y, event->touch_id, event->time_msec );
}
static void wlserver_handle_touch_up(struct wl_listener *listener, void *data)
{
struct wlserver_touch *touch = wl_container_of( listener, touch, up );
struct wlr_event_touch_up *event = (struct wlr_event_touch_up *) data;
wlserver_touchup( event->touch_id, event->time_msec );
}
static void wlserver_handle_touch_motion(struct wl_listener *listener, void *data)
{
struct wlserver_touch *touch = wl_container_of( listener, touch, motion );
struct wlr_event_touch_motion *event = (struct wlr_event_touch_motion *) data;
wlserver_touchmotion( event->x, event->y, event->touch_id, event->time_msec );
}
static void wlserver_new_input(struct wl_listener *listener, void *data)
{
struct wlr_input_device *device = (struct wlr_input_device *) data;
switch ( device->type )
{
case WLR_INPUT_DEVICE_KEYBOARD:
{
struct wlserver_keyboard *pKB = (struct wlserver_keyboard *) calloc( 1, sizeof( struct wlserver_keyboard ) );
pKB->device = device;
struct xkb_rule_names rules = { 0 };
struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
rules.rules = getenv("XKB_DEFAULT_RULES");
rules.model = getenv("XKB_DEFAULT_MODEL");
rules.layout = getenv("XKB_DEFAULT_LAYOUT");
rules.variant = getenv("XKB_DEFAULT_VARIANT");
rules.options = getenv("XKB_DEFAULT_OPTIONS");
struct xkb_keymap *keymap = xkb_keymap_new_from_names(context, &rules,
XKB_KEYMAP_COMPILE_NO_FLAGS);
wlr_keyboard_set_keymap(device->keyboard, keymap);
xkb_keymap_unref(keymap);
xkb_context_unref(context);
wlr_keyboard_set_repeat_info(device->keyboard, 25, 600);
device->keyboard->data = pKB;
pKB->modifiers.notify = wlserver_handle_modifiers;
wl_signal_add( &device->keyboard->events.modifiers, &pKB->modifiers );
pKB->key.notify = wlserver_handle_key;
wl_signal_add( &device->keyboard->events.key, &pKB->key );
}
break;
case WLR_INPUT_DEVICE_POINTER:
{
struct wlserver_pointer *pointer = (struct wlserver_pointer *) calloc( 1, sizeof( struct wlserver_pointer ) );
pointer->device = device;
pointer->motion.notify = wlserver_handle_pointer_motion;
wl_signal_add( &device->pointer->events.motion, &pointer->motion );
pointer->button.notify = wlserver_handle_pointer_button;
wl_signal_add( &device->pointer->events.button, &pointer->button );
pointer->axis.notify = wlserver_handle_pointer_axis;
wl_signal_add( &device->pointer->events.axis, &pointer->axis);
pointer->frame.notify = wlserver_handle_pointer_frame;
wl_signal_add( &device->pointer->events.frame, &pointer->frame);
}
break;
case WLR_INPUT_DEVICE_TOUCH:
{
struct wlserver_touch *touch = (struct wlserver_touch *) calloc( 1, sizeof( struct wlserver_touch ) );
touch->device = device;
touch->down.notify = wlserver_handle_touch_down;
wl_signal_add( &device->touch->events.down, &touch->down );
touch->up.notify = wlserver_handle_touch_up;
wl_signal_add( &device->touch->events.up, &touch->up );
touch->motion.notify = wlserver_handle_touch_motion;
wl_signal_add( &device->touch->events.motion, &touch->motion );
}
break;
default:
break;
}
}
static struct wl_listener new_input_listener = { .notify = wlserver_new_input };
static wlserver_wl_surface_info *get_wl_surface_info(struct wlr_surface *wlr_surf)
{
return reinterpret_cast<wlserver_wl_surface_info *>(wlr_surf->data);
}
static void handle_wl_surface_destroy( struct wl_listener *l, void *data )
{
wlserver_wl_surface_info *surf = wl_container_of( l, surf, destroy );
if (surf->x11_surface)
surf->x11_surface->wlr = nullptr;
if ( surf->wlr == wlserver.mouse_focus_surface )
wlserver.mouse_focus_surface = nullptr;
if ( surf->wlr == wlserver.kb_focus_surface )
wlserver.kb_focus_surface = nullptr;
for (auto it = g_PendingCommits.begin(); it != g_PendingCommits.end();)
{
if (it->surf == surf->wlr)
{
// We owned the buffer lock, so unlock it here.
wlr_buffer_unlock(it->buf);
it = g_PendingCommits.erase(it);
}
else
{
it++;
}
}
surf->wlr->data = nullptr;
delete surf;
}
static void wlserver_new_surface(struct wl_listener *l, void *data)
{
struct wlr_surface *wlr_surf = (struct wlr_surface *)data;
uint32_t id = wl_resource_get_id(wlr_surf->resource);
wlserver_wl_surface_info *wl_surface_info = new wlserver_wl_surface_info;
wl_surface_info->wlr = wlr_surf;
wl_surface_info->destroy.notify = handle_wl_surface_destroy;
wl_signal_add( &wlr_surf->events.destroy, &wl_surface_info->destroy );
wlr_surf->data = wl_surface_info;
struct wlserver_x11_surface_info *s, *tmp;
wl_list_for_each_safe(s, tmp, &pending_surfaces, pending_link)
{
if (s->wl_id == id && s->wlr == nullptr)
{
wlserver_x11_surface_info_set_wlr( s, wlr_surf );
}
}
}
static struct wl_listener new_surface_listener = { .notify = wlserver_new_surface };
void gamescope_xwayland_server_t::destroy_content_override( struct wlserver_content_override *co )
{
wl_list_remove( &co->surface_destroy_listener.link );
content_overrides.erase( co->x11_window );
free( co );
}
static void content_override_handle_surface_destroy( struct wl_listener *listener, void *data )
{
struct wlserver_content_override *co = wl_container_of( listener, co, surface_destroy_listener );
/* The protocol only works for server 0, so assume that for now.
* A future revision may change this and add a DISPLAY parameter or something.
* That would be cool! */
gamescope_xwayland_server_t *server = wlserver_get_xwayland_server( 0 );
assert( server );
server->destroy_content_override( co );
}
void gamescope_xwayland_server_t::handle_override_window_content( struct wl_client *client, struct wl_resource *resource, struct wl_resource *surface_resource, uint32_t x11_window )
{
struct wlr_surface *surface = wlr_surface_from_resource( surface_resource );
if ( content_overrides.count( x11_window ) ) {
destroy_content_override( content_overrides[ x11_window ] );
}
struct wlserver_content_override *co = (struct wlserver_content_override *)calloc(1, sizeof(*co));
co->surface = surface;
co->x11_window = x11_window;
co->surface_destroy_listener.notify = content_override_handle_surface_destroy;
wl_signal_add( &surface->events.destroy, &co->surface_destroy_listener );
content_overrides[ x11_window ] = co;
}
struct wl_client *gamescope_xwayland_server_t::get_client()
{
return xwayland_server->client;
}
struct wlr_output *gamescope_xwayland_server_t::get_output()
{
return output;
}
static void gamescope_xwayland_handle_override_window_content( struct wl_client *client, struct wl_resource *resource, struct wl_resource *surface_resource, uint32_t x11_window )
{
// This should ideally use the surface's xwayland, but we don't know it.
// We probably need to change our override_window_content protocol to add a
// xwayland socket name.
//
// Right now, the surface -> xwayland association comes from the
// handle_wl_id stuff from steamcompmgr.
// However, this surface has no associated X window, and won't recieve
// wl_id stuff as it's meant to replace another window's surface
// which we can't do without knowing the x11_window's xwayland server
// here for it to do that override logic in the first place.
//
// So... Just assume it comes from server 0 for now.
gamescope_xwayland_server_t *server = wlserver_get_xwayland_server( 0 );
assert( server );
server->handle_override_window_content(client, resource, surface_resource, x11_window);
}
static void gamescope_xwayland_handle_destroy( struct wl_client *client, struct wl_resource *resource )
{
wl_resource_destroy( resource );
}
static const struct gamescope_xwayland_interface gamescope_xwayland_impl = {
.destroy = gamescope_xwayland_handle_destroy,
.override_window_content = gamescope_xwayland_handle_override_window_content,
};
static void gamescope_xwayland_bind( struct wl_client *client, void *data, uint32_t version, uint32_t id )
{
struct wl_resource *resource = wl_resource_create( client, &gamescope_xwayland_interface, version, id );
wl_resource_set_implementation( resource, &gamescope_xwayland_impl, NULL, NULL );
}
static void create_gamescope_xwayland( void )
{
uint32_t version = 1;
wl_global_create( wlserver.display, &gamescope_xwayland_interface, version, NULL, gamescope_xwayland_bind );
}
#if HAVE_PIPEWIRE
static void gamescope_pipewire_handle_destroy( struct wl_client *client, struct wl_resource *resource )
{
wl_resource_destroy( resource );
}
static const struct gamescope_pipewire_interface gamescope_pipewire_impl = {
.destroy = gamescope_pipewire_handle_destroy,
};
static void gamescope_pipewire_bind( struct wl_client *client, void *data, uint32_t version, uint32_t id )
{
struct wl_resource *resource = wl_resource_create( client, &gamescope_pipewire_interface, version, id );
wl_resource_set_implementation( resource, &gamescope_pipewire_impl, NULL, NULL );
gamescope_pipewire_send_stream_node( resource, get_pipewire_stream_node_id() );
}
static void create_gamescope_pipewire( void )
{
uint32_t version = 1;
wl_global_create( wlserver.display, &gamescope_pipewire_interface, version, NULL, gamescope_pipewire_bind );
}
#endif
static void gamescope_surface_tearing_set_presentation_hint( struct wl_client *client, struct wl_resource *resource, uint32_t hint )
{
wlserver_wl_surface_info *wl_surface_info = (wlserver_wl_surface_info *)wl_resource_get_user_data( resource );
wl_surface_info->presentation_hint = hint;
}
static void gamescope_surface_tearing_destroy( struct wl_client *client, struct wl_resource *resource )
{
wl_resource_destroy( resource );
}
static const struct gamescope_surface_tearing_control_v1_interface surface_tearing_control_impl {
.set_presentation_hint = gamescope_surface_tearing_set_presentation_hint,
.destroy = gamescope_surface_tearing_destroy,
};
static void gamescope_tearing_handle_destroy( struct wl_client *client, struct wl_resource *resource )
{
wl_resource_destroy( resource );
}
static void gamescope_tearing_get_tearing_control( struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *surface_resource )
{
struct wlr_surface *surface = wlr_surface_from_resource( surface_resource );
struct wl_resource *surface_tearing_control_resource
= wl_resource_create( client, &gamescope_surface_tearing_control_v1_interface, wl_resource_get_version( resource ), id );
wl_resource_set_implementation( surface_tearing_control_resource, &surface_tearing_control_impl, get_wl_surface_info(surface), NULL );
}
static const struct gamescope_tearing_control_v1_interface tearing_control_impl = {
.destroy = gamescope_tearing_handle_destroy,
.get_tearing_control = gamescope_tearing_get_tearing_control,
};
static void gamescope_tearing_bind( struct wl_client *client, void *data, uint32_t version, uint32_t id )
{
struct wl_resource *resource = wl_resource_create( client, &gamescope_tearing_control_v1_interface, version, id );
wl_resource_set_implementation( resource, &tearing_control_impl, NULL, NULL );
}
static void create_gamescope_tearing( void )
{
uint32_t version = 1;
wl_global_create( wlserver.display, &gamescope_tearing_control_v1_interface, version, NULL, gamescope_tearing_bind );
}
static void handle_session_active( struct wl_listener *listener, void *data )
{
if (wlserver.wlr.session->active) {
g_DRM.out_of_date = 1;
g_DRM.needs_modeset = 1;
}
g_DRM.paused = !wlserver.wlr.session->active;
wl_log.infof( "Session %s", g_DRM.paused ? "paused" : "resumed" );
}
static void handle_wlr_log(enum wlr_log_importance importance, const char *fmt, va_list args)
{
enum LogPriority prio;
switch (importance) {
case WLR_ERROR:
prio = LOG_ERROR;
break;
case WLR_INFO:
prio = LOG_INFO;
break;
default:
prio = LOG_DEBUG;
break;
}
wl_log.vlogf(prio, fmt, args);
}
void wlserver_set_output_info( const wlserver_output_info *info )
{
free(wlserver.output_info.description);
wlserver.output_info.description = strdup(info->description);
wlserver.output_info.phys_width = info->phys_width;
wlserver.output_info.phys_height = info->phys_height;
if (wlserver.wlr.xwayland_servers.empty())
return;
gamescope_xwayland_server_t *server = wlserver.wlr.xwayland_servers[0].get();
server->update_output_info();
}
static bool filter_global(const struct wl_client *client, const struct wl_global *global, void *data)
{
const struct wl_interface *iface = wl_global_get_interface(global);
if (strcmp(iface->name, wl_output_interface.name) != 0)
return true;
struct wlr_output *output = (struct wlr_output *) wl_global_get_user_data(global);
if (!output)
{
/* Can happen if the output has been destroyed, but the client hasn't
* received the wl_registry.global_remove event yet. */
return false;
}
/* We create one wl_output global per Xwayland server, to easily have
* per-server output configuration. Only expose the wl_output belonging to
* the server. */
for (size_t i = 0; i < wlserver.wlr.xwayland_servers.size(); i++) {
gamescope_xwayland_server_t *server = wlserver.wlr.xwayland_servers[i].get();
if (server->get_client() == client)
return server->get_output() == output;
}
if (wlserver.wlr.xwayland_servers.empty())
return false;
gamescope_xwayland_server_t *server = wlserver.wlr.xwayland_servers[0].get();
/* If we aren't an xwayland server, then only expose the first wl_output
* that's associated with from server 0. */
return server->get_output() == output;
}
bool wlsession_init( void ) {
wlr_log_init(WLR_DEBUG, handle_wlr_log);
wlserver.display = wl_display_create();
wlserver.wlr.headless_backend = wlr_headless_backend_create( wlserver.display );
wl_display_set_global_filter(wlserver.display, filter_global, nullptr);
const struct wlserver_output_info output_info = {
.description = "Virtual gamescope output",
};
wlserver_set_output_info( &output_info );
if ( BIsNested() )
return true;
wlserver.wlr.session = wlr_session_create( wlserver.display );
if ( wlserver.wlr.session == nullptr )
{
wl_log.errorf( "Failed to create session" );
return false;
}
wlserver.session_active.notify = handle_session_active;
wl_signal_add( &wlserver.wlr.session->events.active, &wlserver.session_active );
return true;
}
static void kms_device_handle_change( struct wl_listener *listener, void *data )
{
g_DRM.out_of_date = 1;
wl_log.infof( "Got change event for KMS device" );
nudge_steamcompmgr();
}
int wlsession_open_kms( const char *device_name ) {
struct wlr_device *device = nullptr;
if ( device_name != nullptr )
{
device = wlr_session_open_file( wlserver.wlr.session, device_name );
if ( device == nullptr )
return -1;
if ( !drmIsKMS( device->fd ) )
{
wl_log.errorf( "'%s' is not a KMS device", device_name );
wlr_session_close_file( wlserver.wlr.session, device );
return -1;
}
}
else
{
ssize_t n = wlr_session_find_gpus( wlserver.wlr.session, 1, &device );
if ( n < 0 )
{
wl_log.errorf( "Failed to list GPUs" );
return -1;
}
if ( n == 0 )
{
wl_log.errorf( "No GPU detected" );
return -1;
}
}
struct wl_listener *listener = new wl_listener();
listener->notify = kms_device_handle_change;
wl_signal_add( &device->events.change, listener );
return device->fd;
}
gamescope_xwayland_server_t::gamescope_xwayland_server_t(wl_display *display)
{
struct wlr_xwayland_server_options xwayland_options = {
.lazy = false,
.enable_wm = false,
.no_touch_pointer_emulation = true,
};
xwayland_server = wlr_xwayland_server_create(display, &xwayland_options);
wl_signal_add(&xwayland_server->events.ready, &xwayland_ready_listener);
output = wlr_headless_add_output(wlserver.wlr.headless_backend, 1280, 720);
strncpy(output->make, "gamescope", sizeof(output->make));
strncpy(output->model, "gamescope", sizeof(output->model));
wlr_output_set_name(output, "gamescope");
int refresh = g_nNestedRefresh;
if (refresh == 0) {
refresh = g_nOutputRefresh;
}
wlr_output_enable(output, true);
wlr_output_set_custom_mode(output, g_nNestedWidth, g_nNestedHeight, refresh * 1000);
if (!wlr_output_commit(output))
{
wl_log.errorf("Failed to commit headless output");
abort();
}
update_output_info();
wlr_output_create_global(output);
}
gamescope_xwayland_server_t::~gamescope_xwayland_server_t()
{
wlr_xwayland_server_destroy(xwayland_server);
wlr_output_destroy(output);
}
void gamescope_xwayland_server_t::update_output_info()
{
const auto *info = &wlserver.output_info;
output->phys_width = info->phys_width;
output->phys_height = info->phys_height;
struct wl_resource *resource;
wl_resource_for_each(resource, &output->resources) {
wl_output_send_geometry(resource, 0, 0,
output->phys_width, output->phys_height, output->subpixel,
output->make, output->model, output->transform);
}
wlr_output_schedule_done(output);
wlr_output_set_description(output, info->description);
}
bool wlserver_init( void ) {
assert( wlserver.display != nullptr );
bool bIsDRM = !BIsNested();
wl_list_init(&pending_surfaces);
wlserver.event_loop = wl_display_get_event_loop(wlserver.display);
wlserver.wlr.multi_backend = wlr_multi_backend_create(wlserver.display);
wlr_multi_backend_add( wlserver.wlr.multi_backend, wlserver.wlr.headless_backend );
assert( wlserver.event_loop && wlserver.wlr.multi_backend );
wl_signal_add( &wlserver.wlr.multi_backend->events.new_input, &new_input_listener );
if ( bIsDRM == True )
{
wlserver.wlr.libinput_backend = wlr_libinput_backend_create( wlserver.display, wlserver.wlr.session );
if ( wlserver.wlr.libinput_backend == NULL)
{
return false;
}
wlr_multi_backend_add( wlserver.wlr.multi_backend, wlserver.wlr.libinput_backend );
}
// Create a stub wlr_keyboard only used to set the keymap
// We need to wait for the backend to be started before adding the device
struct wlr_keyboard *kbd = (struct wlr_keyboard *) calloc(1, sizeof(*kbd));
wlr_keyboard_init(kbd, nullptr);
struct wlr_input_device *kbd_dev = (struct wlr_input_device *) calloc(1, sizeof(*kbd_dev));
wlr_input_device_init(kbd_dev, WLR_INPUT_DEVICE_KEYBOARD, nullptr, "virtual", 0, 0);
kbd_dev->keyboard = kbd;
wlserver.wlr.virtual_keyboard_device = kbd_dev;
wlserver.wlr.renderer = vulkan_renderer_create();
wlr_renderer_init_wl_display(wlserver.wlr.renderer, wlserver.display);
wlserver.wlr.compositor = wlr_compositor_create(wlserver.display, wlserver.wlr.renderer);
wl_signal_add( &wlserver.wlr.compositor->events.new_surface, &new_surface_listener );
create_ime_manager( &wlserver );
create_gamescope_xwayland();
#if HAVE_PIPEWIRE
create_gamescope_pipewire();
#endif
create_gamescope_tearing();
int result = -1;
int display_slot = 0;
while ( result != 0 && display_slot < 128 )
{
sprintf( wlserver.wl_display_name, "gamescope-%d", display_slot );
result = wl_display_add_socket( wlserver.display, wlserver.wl_display_name );
display_slot++;
}
if ( result != 0 )
{
wl_log.errorf_errno("Unable to open wayland socket");
wlr_backend_destroy( wlserver.wlr.multi_backend );
return false;
}
wlserver.wlr.seat = wlr_seat_create(wlserver.display, "seat0");
wlr_seat_set_capabilities( wlserver.wlr.seat, WL_SEAT_CAPABILITY_POINTER | WL_SEAT_CAPABILITY_KEYBOARD | WL_SEAT_CAPABILITY_TOUCH );
wl_log.infof("Running compositor on wayland display '%s'", wlserver.wl_display_name);
if (!wlr_backend_start( wlserver.wlr.multi_backend ))
{
wl_log.errorf("Failed to start backend");
wlr_backend_destroy( wlserver.wlr.multi_backend );
wl_display_destroy(wlserver.display);
return false;
}
wl_signal_emit( &wlserver.wlr.multi_backend->events.new_input, kbd_dev );
for (int i = 0; i < g_nXWaylandCount; i++)
{
auto server = std::make_unique<gamescope_xwayland_server_t>(wlserver.display);
wlserver.wlr.xwayland_servers.emplace_back(std::move(server));
}
for (size_t i = 0; i < wlserver.wlr.xwayland_servers.size(); i++)
{
while (!wlserver.wlr.xwayland_servers[i]->is_xwayland_ready()) {
wl_display_flush_clients(wlserver.display);
if (wl_event_loop_dispatch(wlserver.event_loop, -1) < 0) {
wl_log.errorf("wl_event_loop_dispatch failed\n");
return false;
}
}
}
return true;
}
pthread_mutex_t waylock = PTHREAD_MUTEX_INITIALIZER;
void wlserver_lock(void)
{
pthread_mutex_lock(&waylock);
}
void wlserver_unlock(void)
{
wl_display_flush_clients(wlserver.display);
pthread_mutex_unlock(&waylock);
}
extern std::mutex g_SteamCompMgrXWaylandServerMutex;
void wlserver_run(void)
{
pthread_setname_np( pthread_self(), "gamescope-wl" );
struct pollfd pollfd = {
.fd = wl_event_loop_get_fd( wlserver.event_loop ),
.events = POLLIN,
};
while ( g_bRun ) {
int ret = poll( &pollfd, 1, -1 );
if ( ret < 0 ) {
if ( errno == EINTR )
continue;
wl_log.errorf_errno( "poll failed" );
break;
}
if ( pollfd.revents & (POLLHUP | POLLERR) ) {
wl_log.errorf( "socket %s", ( pollfd.revents & POLLERR ) ? "error" : "closed" );
break;
}
if ( pollfd.revents & POLLIN ) {
// We have wayland stuff to do, do it while locked
wlserver_lock();
wl_display_flush_clients(wlserver.display);
int ret = wl_event_loop_dispatch(wlserver.event_loop, 0);
if (ret < 0) {
break;
}
wlserver_unlock();
}
}
// Released when steamcompmgr closes.
std::unique_lock<std::mutex> xwayland_server_guard(g_SteamCompMgrXWaylandServerMutex);
// We need to shutdown Xwayland before disconnecting all clients, otherwise
// wlroots will restart it automatically.
wlserver.wlr.xwayland_servers.clear();
wl_display_destroy_clients(wlserver.display);
wl_display_destroy(wlserver.display);
}
void wlserver_keyboardfocus( struct wlr_surface *surface )
{
struct wlr_keyboard *keyboard = wlr_seat_get_keyboard( wlserver.wlr.seat );
if ( keyboard == nullptr )
wlr_seat_keyboard_notify_enter( wlserver.wlr.seat, surface, nullptr, 0, nullptr);
else
wlr_seat_keyboard_notify_enter( wlserver.wlr.seat, surface, keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers);
wlserver.kb_focus_surface = surface;
}
void wlserver_key( uint32_t key, bool press, uint32_t time )
{
assert( wlserver.wlr.virtual_keyboard_device != nullptr );
wlr_seat_set_keyboard( wlserver.wlr.seat, wlserver.wlr.virtual_keyboard_device );
wlr_seat_keyboard_notify_key( wlserver.wlr.seat, time, key, press );
bump_input_counter();
}
void wlserver_mousefocus( struct wlr_surface *wlrsurface, int x /* = 0 */, int y /* = 0 */ )
{
wlserver.mouse_focus_surface = wlrsurface;
if ( x < wlrsurface->current.width && y < wlrsurface->current.height )
{
wlserver.mouse_surface_cursorx = x;
wlserver.mouse_surface_cursory = y;
}
else