dix: Drop the third argument from WindowExposuresProcPtr

A careful read shows that it was always NULL.  It hasn't always been; as
the DDX spec indicates, it was the "occluded region that has backing
store", but since that backing store code is long gone, we can nuke it.

mi{,Overlay}WindowExposures get slightly simpler here, and will get even
simpler in just a moment.

Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mi/miwindow.c b/mi/miwindow.c
index 82c3513c8..ba4c9ed5c 100644
--- a/mi/miwindow.c
+++ b/mi/miwindow.c
@@ -111,7 +111,7 @@ miClearToBackground(WindowPtr pWin,
 
     RegionIntersect(&reg, &reg, &pWin->clipList);
     if (generateExposures)
-        (*pWin->drawable.pScreen->WindowExposures) (pWin, &reg, NULL);
+        (*pWin->drawable.pScreen->WindowExposures) (pWin, &reg);
     else if (pWin->backgroundState != None)
         miPaintWindow(pWin, &reg, PW_BACKGROUND);
     RegionUninit(&reg);
@@ -221,7 +221,7 @@ miHandleValidateExposures(WindowPtr pWin)
             if (RegionNotEmpty(&val->after.borderExposed))
                 miPaintWindow(pChild, &val->after.borderExposed, PW_BORDER);
             RegionUninit(&val->after.borderExposed);
-            (*WindowExposures) (pChild, &val->after.exposed, NullRegion);
+            (*WindowExposures) (pChild, &val->after.exposed);
             RegionUninit(&val->after.exposed);
             free(val);
             pChild->valdata = NULL;