[PATCH] Revert "composite: Don't backfill non-bg-None windows"

[Adam Jackson]

This reverts commit 6dd775f57d2f94f0ddaee324aeec33b9b66ed5bc.

Bugzilla: https://bugs.freedesktop.org/34427

Signed-off-by: Adam Jackson <ajax at redhat.com>
---
 composite/compalloc.c |   26 --------------------------
 1 files changed, 0 insertions(+), 26 deletions(-)

diff --git a/composite/compalloc.c b/composite/compalloc.c
index e4064f6..7164c0d 100644
--- a/composite/compalloc.c
+++ b/composite/compalloc.c
@@ -508,17 +508,6 @@ compUnredirectOneSubwindow (WindowPtr pParent, WindowPtr pWin)
     return Success;
 }
 
-static int
-bgNoneVisitWindow(WindowPtr pWin, void *null)
-{
-    if (pWin->backgroundState != BackgroundPixmap)
-	return WT_WALKCHILDREN;
-    if (pWin->background.pixmap != None)
-	return WT_WALKCHILDREN;
-
-    return WT_STOPWALKING;
-}
-
 static PixmapPtr
 compNewPixmap (WindowPtr pWin, int x, int y, int w, int h, Bool map)
 {
@@ -539,21 +528,6 @@ compNewPixmap (WindowPtr pWin, int x, int y, int w, int h, Bool map)
     if (!map)
 	return pPixmap;
 
-    /*
-     * If there's no bg=None in the tree, we're done.
-     *
-     * We could optimize this more by collection the regions of all the
-     * bg=None subwindows and feeding that in as the clip for the
-     * CopyArea below, but since window trees are shallow these days it
-     * might not be worth the effort.
-     */
-    if (TraverseTree(pWin, bgNoneVisitWindow, NULL) == WT_NOMATCH)
-	return pPixmap;
-
-    /*
-     * Copy bits from the parent into the new pixmap so that it will
-     * have "reasonable" contents in case for background None areas.
-     */
     if (pParent->drawable.depth == pWin->drawable.depth)
     {
 	GCPtr	pGC = GetScratchGC (pWin->drawable.depth, pScreen);
-- 
1.7.4