Rémi Bernon : winewayland: Force the DPI context when restoring cursor clipping.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 3d351fddeb9a04b24a81528eaca1ea2d8499042e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/3d351fddeb9a04b24a81528eaca1ea2...

Author: Rémi Bernon <rbernon(a)codeweavers.com>
Date:   Mon Jun  3 20:20:33 2024 +0200

winewayland: Force the DPI context when restoring cursor clipping.

Avoiding any lossy conversion.

---

 dlls/winewayland.drv/wayland_pointer.c | 11 +++++++++--
 dlls/winewayland.drv/window.c          | 12 +++++++++---
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/dlls/winewayland.drv/wayland_pointer.c b/dlls/winewayland.drv/wayland_pointer.c
index df76a4e9954..1d8acaeabd2 100644
--- a/dlls/winewayland.drv/wayland_pointer.c
+++ b/dlls/winewayland.drv/wayland_pointer.c
@@ -659,12 +659,19 @@ clear_cursor:
     }
 }
 
+static void reapply_cursor_clipping(void)
+{
+    RECT rect;
+    UINT context = NtUserSetThreadDpiAwarenessContext(NTUSER_DPI_PER_MONITOR_AWARE);
+    if (NtUserGetClipCursor(&rect)) NtUserClipCursor(&rect);
+    NtUserSetThreadDpiAwarenessContext(context);
+}
+
 static void wayland_set_cursor(HWND hwnd, HCURSOR hcursor, BOOL use_hcursor)
 {
     struct wayland_pointer *pointer = &process_wayland.pointer;
     struct wayland_surface *surface;
     double scale;
-    RECT clip;
     BOOL reapply_clip = FALSE;
 
     if ((surface = wayland_surface_lock_hwnd(hwnd)))
@@ -697,7 +704,7 @@ static void wayland_set_cursor(HWND hwnd, HCURSOR hcursor, BOOL use_hcursor)
 
     /* Reapply cursor clip since cursor visibility affects pointer constraint
      * behavior. */
-    if (reapply_clip && NtUserGetClipCursor(&clip)) NtUserClipCursor(&clip);
+    if (reapply_clip) reapply_cursor_clipping();
 }
 
 /**********************************************************************
diff --git a/dlls/winewayland.drv/window.c b/dlls/winewayland.drv/window.c
index cd8ca76b679..73bee46cc35 100644
--- a/dlls/winewayland.drv/window.c
+++ b/dlls/winewayland.drv/window.c
@@ -199,12 +199,19 @@ static void wayland_win_data_get_config(struct wayland_win_data *data,
     conf->managed = data->managed;
 }
 
+static void reapply_cursor_clipping(void)
+{
+    RECT rect;
+    UINT context = NtUserSetThreadDpiAwarenessContext(NTUSER_DPI_PER_MONITOR_AWARE);
+    if (NtUserGetClipCursor(&rect )) NtUserClipCursor(&rect);
+    NtUserSetThreadDpiAwarenessContext(context);
+}
+
 static void wayland_win_data_update_wayland_surface(struct wayland_win_data *data)
 {
     struct wayland_surface *surface = data->wayland_surface;
     HWND parent = NtUserGetAncestor(data->hwnd, GA_PARENT);
     BOOL visible, xdg_visible;
-    RECT clip;
     WCHAR text[1024];
 
     TRACE("hwnd=%p\n", data->hwnd);
@@ -255,8 +262,7 @@ static void wayland_win_data_update_wayland_surface(struct wayland_win_data *dat
 
     /* Size/position changes affect the effective pointer constraint, so update
      * it as needed. */
-    if (data->hwnd == NtUserGetForegroundWindow() && NtUserGetClipCursor(&clip))
-        NtUserClipCursor(&clip);
+    if (data->hwnd == NtUserGetForegroundWindow()) reapply_cursor_clipping();
 
 out:
     TRACE("hwnd=%p surface=%p=>%p\n", data->hwnd, data->wayland_surface, surface);