winewayland.drv: Update display devices from the desktop window thread.

dlls/winewayland.drv/Makefile.in

@@ -10,4 +10,5 @@ SOURCES = \
 	wayland.c \
 	wayland_output.c \
 	waylanddrv_main.c \
+	window.c \
 	xdg-output-unstable-v1.xml

dlls/winewayland.drv/wayland_output.c

@@ -119,7 +119,7 @@ static void maybe_init_display_devices(void)
     /* We only update the display devices from the desktop process. */
     if (GetCurrentProcessId() != desktop_pid) return;
 
-    wayland_init_display_devices(TRUE);
+    NtUserPostMessage(desktop_hwnd, WM_WAYLAND_INIT_DISPLAY_DEVICES, 0, 0);
 }
 
 static void wayland_output_mode_free_rb(struct rb_entry *entry, void *ctx)

dlls/winewayland.drv/waylanddrv.h

@@ -46,6 +46,11 @@ extern struct wayland process_wayland DECLSPEC_HIDDEN;
  *          Definitions for wayland types
  */
 
+enum wayland_window_message
+{
+    WM_WAYLAND_INIT_DISPLAY_DEVICES = 0x80001000
+};
+
 struct wayland
 {
     BOOL initialized;
@@ -107,5 +112,6 @@ void wayland_output_use_xdg_extension(struct wayland_output *output) DECLSPEC_HI
 
 BOOL WAYLAND_UpdateDisplayDevices(const struct gdi_device_manager *device_manager,
                                   BOOL force, void *param) DECLSPEC_HIDDEN;
+LRESULT WAYLAND_WindowMessage(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) DECLSPEC_HIDDEN;
 
 #endif /* __WINE_WAYLANDDRV_H */

dlls/winewayland.drv/waylanddrv_main.c

@@ -32,6 +32,7 @@
 static const struct user_driver_funcs waylanddrv_funcs =
 {
     .pUpdateDisplayDevices = WAYLAND_UpdateDisplayDevices,
+    .pWindowMessage = WAYLAND_WindowMessage
 };
 
 static NTSTATUS waylanddrv_unix_init(void *arg)

dlls/winewayland.drv/window.c

+/*
+ * Wayland window handling
+ *
+ * Copyright 2020 Alexandros Frantzis for Collabora Ltd
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#if 0
+#pragma makedep unix
+#endif
+
+#include "config.h"
+
+#include "waylanddrv.h"
+
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(waylanddrv);
+
+/**********************************************************************
+ *           WAYLAND_WindowMessage
+ */
+LRESULT WAYLAND_WindowMessage(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp)
+{
+    switch (msg)
+    {
+    case WM_WAYLAND_INIT_DISPLAY_DEVICES:
+        wayland_init_display_devices(TRUE);
+        return 0;
+    default:
+        FIXME("got window msg %x hwnd %p wp %lx lp %lx\n", msg, hwnd, (long)wp, lp);
+        return 0;
+    }
+}