st/nine: Allow lock coordinates outside range

This fixes wine test device.c test_lockrect_invalid()

Mimic WindowsXp behaviour and allow negative values in the rectangle passed.
Add comment to point out behaviour used.

Reviewed-by: Axel Davy <axel.davy@ens.fr>
Signed-off-by: Patrick Rudolph <siro@das-labor.org>

src/gallium/state_trackers/nine/surface9.c

@@ -363,13 +363,9 @@ NineSurface9_LockRect( struct NineSurface9 *This,
         usage |= PIPE_TRANSFER_DONTBLOCK;
 
     if (pRect) {
+        /* Windows XP accepts invalid locking rectangles, Windows 7 rejects
+         * them. Use Windows XP behaviour for now. */
         rect_to_pipe_box(&box, pRect);
-        if (u_box_clip_2d(&box, &box, This->desc.Width,
-                          This->desc.Height) < 0) {
-            DBG("pRect clipped by Width=%u Height=%u\n",
-                This->desc.Width, This->desc.Height);
-            return D3DERR_INVALIDCALL;
-        }
     } else {
         u_box_origin_2d(This->desc.Width, This->desc.Height, &box);
     }