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NEWS: Add notes for 1.5.20 snapshot

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Carl Worth 2008-04-08 02:45:31 -07:00
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Snapshot 1.5.20 (2008-04-04 Carl Worth <cworth@cworth.org>)
===========================================================
This is the tenth snapshot in cairo's unstable 1.5 series. It comes
just two days (and only one working day) after the 1.5.18
snapshot. The quick snapshot is due to two embarrassing bugs (both
affecting cairo-xlib) that had been introduced in the 1.5.18
snapshot. The fixes for these are described below along with a few
other fixes, (which hopefully aren't introducing new bugs this time).
cairo-xlib
----------
Revert fix from 1.5.18 to allow pattern expansion based on the filter
mode. This fix seemed so boring, (the use case it addresses is almost
never used in practice), that it didn't even get mentioned in the
1.5.18 release notes. However, the "fix" happened to break rendering
that is always used resulting in corrupt image rendering in mozilla,
evolution, and probably everything else that uses cairo.
Fix to avoid BadMatch errors in cairo_surface_create_similar. These
were introduced, (inadvertently, of course), as part of the fix in
1.5.18 for creating similar surfaces without the Render
extension. Again, thanks to mozilla, (and Vladimir Vukicevic in
particular), for noticing our mistake.
general
-------
Correctly handle an in-error surface in
cairo_surface_write_to_png. Previously this function would cause an
assertion failure if you gave it a finished surface. Now it cleanly
returns a CAIRO_STATUS_SURFACE_FINISHED result instead.
Avoid potentially infinite wandering through memory inside
_cairo_hull_prev_valid. Thanks to Jonathan Watt for noticing this
problem:
https://bugzilla.mozilla.org/show_bug.cgi?id=306649#c21
cairo-pdf
---------
Fix generation of "soft" masks made by drawing to a similar surface
and then calling cairo_mask_surface() with it.
cairo-svg
---------
Fix for code that uses cairo_mask() on an intermediate surface which
is later passed to cairo_mask_surface().
Snapshot 1.5.18 (2008-04-05 Carl Worth <cworth@cworth.org>)
===========================================================
This is the ninth snapshot in cairo's unstable 1.5 series. It comes