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mi: Deobfuscate miWindowExposures

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Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Adam Jackson 2014-09-23 10:30:56 -04:00
parent 0d30d44a8c
commit fb34f27348
1 changed files with 11 additions and 30 deletions
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41
mi/miexpose.c
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@ -425,17 +425,11 @@ miWindowExposures(WindowPtr pWin, RegionPtr prgn)
{
RegionPtr exposures = prgn;
if ((prgn && !RegionNil(prgn)) || (exposures && !RegionNil(exposures))) {
if (prgn && !RegionNil(prgn)) {
RegionRec expRec;
int clientInterested;
/*
* Restore from backing-store FIRST.
*/
clientInterested =
int clientInterested =
(pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask;
if (clientInterested && exposures &&
(RegionNumRects(exposures) > RECTLIMIT)) {
if (clientInterested && (RegionNumRects(prgn) > RECTLIMIT)) {
/*
* If we have LOTS of rectangles, we decide to take the extents
* and force an exposure on that. This should require much less
@ -444,34 +438,21 @@ miWindowExposures(WindowPtr pWin, RegionPtr prgn)
*/
BoxRec box;
box = *RegionExtents(exposures);
if (exposures == prgn) {
exposures = &expRec;
RegionInit(exposures, &box, 1);
RegionReset(prgn, &box);
}
else {
RegionReset(exposures, &box);
RegionUnion(prgn, prgn, exposures);
}
box = *RegionExtents(prgn);
exposures = &expRec;
RegionInit(exposures, &box, 1);
RegionReset(prgn, &box);
/* miPaintWindow doesn't clip, so we have to */
RegionIntersect(prgn, prgn, &pWin->clipList);
}
if (prgn && !RegionNil(prgn))
miPaintWindow(pWin, prgn, PW_BACKGROUND);
if (clientInterested && exposures && !RegionNil(exposures))
miPaintWindow(pWin, prgn, PW_BACKGROUND);
if (clientInterested)
miSendExposures(pWin, exposures,
pWin->drawable.x, pWin->drawable.y);
if (exposures == &expRec) {
if (exposures == &expRec)
RegionUninit(exposures);
}
else if (exposures && exposures != prgn)
RegionDestroy(exposures);
if (prgn)
RegionEmpty(prgn);
RegionEmpty(prgn);
}
else if (exposures && exposures != prgn)
RegionDestroy(exposures);
}
#ifdef ROOTLESS