[PATCH] DRI2: track drawable serial numbers

[Keith Packard]

On Fri, 2 Jul 2010 12:26:34 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> If a pixmap header is modified or the drawable serial changes, some
> aspects of the drawable are likely to have changed so we should
> re-allocate the corresponding DRI2 drawable in that case.  This is one
> way of catching when the root window pixmap changes through xrandr.

The serial number changes whenever the cliplist changes for the window,
which is probably a lot more often than you want to do this
operation. What are you trying to detect? Changes in the pixmap?
Wrapping SetWindowPixmap would give you that.

-- 
keith.packard at intel.com
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