From 2fa8acb08422f799ff1e2485fd69fe165574c574 Mon Sep 17 00:00:00 2001
From: Frank Praznik <frank.praznik@gmail.com>
Date: Sun, 6 Oct 2024 14:33:01 -0400
Subject: [PATCH] x11: Refresh the global cursor coordinates when confining the
 pointer

XGrabPointer can warp the cursor into the window when confining, so set the flag to refresh the global coordinates when queried.
---
 src/video/x11/SDL_x11mouse.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/video/x11/SDL_x11mouse.c b/src/video/x11/SDL_x11mouse.c
index decd763963..8a366ad589 100644
--- a/src/video/x11/SDL_x11mouse.c
+++ b/src/video/x11/SDL_x11mouse.c
@@ -412,6 +412,11 @@ static bool X11_CaptureMouse(SDL_Window *window)
             if (rc != GrabSuccess) {
                 return SDL_SetError("X server refused mouse capture");
             }
+
+            if (data->mouse_grabbed) {
+                // XGrabPointer can warp the cursor when confining, so update the coordinates.
+                data->videodata->global_mouse_changed = true;
+            }
         }
     } else if (mouse_focus) {
         SDL_UpdateWindowGrab(mouse_focus);