[PATCH v5 5/6] winewayland.drv: Update display devices from the desktop window thread.

[Alexandros Frantzis]

From: Alexandros Frantzis

Use a driver internal window message to dispatch updates to display devices from
the desktop window thread.
---
 dlls/winewayland.drv/Makefile.in       |  1 +
 dlls/winewayland.drv/wayland_output.c  |  2 +-
 dlls/winewayland.drv/waylanddrv.h      |  6 ++++
 dlls/winewayland.drv/waylanddrv_main.c |  1 +
 dlls/winewayland.drv/window.c          | 47 ++++++++++++++++++++++++++
 5 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 dlls/winewayland.drv/window.c

diff --git a/dlls/winewayland.drv/Makefile.in b/dlls/winewayland.drv/Makefile.in
index 3f9c052f2b0..454a7e5a4b4 100644
--- a/dlls/winewayland.drv/Makefile.in
+++ b/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
diff --git a/dlls/winewayland.drv/wayland_output.c b/dlls/winewayland.drv/wayland_output.c
index 5ea04340347..4b2cb0505be 100644
--- a/dlls/winewayland.drv/wayland_output.c
+++ b/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)
diff --git a/dlls/winewayland.drv/waylanddrv.h b/dlls/winewayland.drv/waylanddrv.h
index 600fcfce355..ecd144950c2 100644
--- a/dlls/winewayland.drv/waylanddrv.h
+++ b/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 */
diff --git a/dlls/winewayland.drv/waylanddrv_main.c b/dlls/winewayland.drv/waylanddrv_main.c
index a578db76c66..1d9877f4518 100644
--- a/dlls/winewayland.drv/waylanddrv_main.c
+++ b/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)
diff --git a/dlls/winewayland.drv/window.c b/dlls/winewayland.drv/window.c
new file mode 100644
index 00000000000..946ad6801a9
--- /dev/null
+++ b/dlls/winewayland.drv/window.c
@@ -0,0 +1,47 @@
+/*
+ * 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;
+    }
+}