On Thu, Dec 2, 2010 at 10:48 AM, fancy fang <[email protected]> wrote: > Dear all, > In xserver 1.9.0, there is an access array to cache previous > results to reduce cost. Howver, this optimization would modify the original > index and give the wrong index to driver PrepareAccess. Also, sometimes > driver PrepareAccess need to know the pixmap is used to be read or written. > Now, nobody can confirm that the driver PrepareAccess can get the right > index now. Can someone exaplain this? Thanks! > > Best wishes, > > Fancy > > _______________________________________________ > [email protected]: X.Org development > Archives: http://lists.x.org/archives/xorg-devel > Info: http://lists.x.org/mailman/listinfo/xorg-devel >
In principle any index can be used to read and write. Often SRC and MASK will only be read and DST will be read-write (this also goes for the AUX indices), but it is possible for a pixmap to get a random index. Does that answer your question? Maarten. Maarten. _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
