Sync SDL3 header -> wiki

SDL3/README/wayland.md

@@ -39,9 +39,10 @@ encounter limitations or behavior that is different from other windowing systems
  unknown. In most cases, applications don't actually need the global cursor position and should use the window-relative
  coordinates as provided by the mouse movement event or from ```SDL_GetMouseState()``` instead.
 
-### Warping the global mouse cursor position via ```SDL_WarpMouseGlobal()``` doesn't work
+### Warping the mouse cursor to or from a point outside the window doesn't work
 
-- For security reasons, Wayland does not allow warping the global mouse cursor position.
+- The cursor can be warped only within the window with mouse focus, provided that the `zwp_pointer_confinement_v1`
+ protocol is supported by the compositor.
 
 ### The application icon can't be set via ```SDL_SetWindowIcon()```
 

SDL3/SDL_HINT_VIDEO_WAYLAND_EMULATE_MOUSE_WARP.md

@@ -1,7 +1,7 @@
 ###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!)
 # SDL_HINT_VIDEO_WAYLAND_EMULATE_MOUSE_WARP
 
-Enable or disable mouse pointer warp emulation, needed by some older games.
+Enable or disable hidden mouse pointer warp emulation, needed by some older games.
 
 ## Header File
 
@@ -15,17 +15,19 @@ Defined in [<SDL3/SDL_hints.h>](https://github.com/libsdl-org/SDL/blob/main/incl
 
 ## Remarks
 
-Wayland does not directly support warping the mouse. When this hint is set,
-any SDL will emulate mouse warps using relative mouse mode. This is
-required for some older games (such as Source engine games), which warp the
-mouse to the centre of the screen rather than using relative mouse motion.
-Note that relative mouse mode may have different mouse acceleration
-behaviour than pointer warps.
+Wayland requires the pointer confinement protocol to warp the mouse, but
+that is just a hint that the compositor is free to ignore, and warping the
+the pointer to or from regions outside of the focused window is prohibited.
+When this hint is set and the pointer is hidden, SDL will emulate mouse
+warps using relative mouse mode. This is required for some older games
+(such as Source engine games), which warp the mouse to the centre of the
+screen rather than using relative mouse motion. Note that relative mouse
+mode may have different mouse acceleration behaviour than pointer warps.
 
 The variable can be set to the following values:
 
-- "0": All mouse warps fail, as mouse warping is not available under
- wayland.
+- "0": Attempts to warp the mouse will be made, if the appropriate protocol
+ is available.
 - "1": Some mouse warps will be emulated by forcing relative mouse mode.
 
 If not set, this is automatically enabled unless an application uses