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[NEWS] Surface cache for solid patterns

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Add an entry describing the surface cache to NEWS.
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Chris Wilson 2007-05-04 15:25:18 +01:00
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@ -1,3 +1,24 @@
Release 1.4.x
=========================================================
«Preamble»
Surface cache for solid patterns
--------------------------------
Originally written by Jorn Baayen, the introduction of a small cache
for surfaces created for solid patterns dramatically reduced the amount
the number of required surface allocations and backend traffic. For
example, this reduces the volume of X requests during text rendering
to the same level as Xft. Unfortunately, the cache had to be removed
when complications arose with threaded applications, like Evince,
which were designed to only make lockless X requests from a single
thread, but Cairo violated this design when it ejected cached surfaces,
with corresponding X traffic, from auxiliary threads. A solution was
proposed by Behdad Esfahbod, and implemented by Chris Wilson, to
introduce work queues for the xlib backend that deferred the
destruction of the X resources until the next time the application
directly operated on a xlib surface.
Release 1.4.6 (2007-05-01 Carl Worth <cworth@cworth.org>)
=========================================================
This is the third update in cairo's stable 1.4 series. It comes a