NEWS: take two.

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Chris Wilson 2010-06-12 19:40:42 +01:00
parent 62899e5e23
commit e9fb39daee

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NEWS
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Snapshot 1.9.8 (2010-06-12)
===========================
No API changes since the last snapshot, just a whole slew of bugs fixed and
inconsistencies eliminated. Far too many bugs fixed to individually
identify. We need to thank Benjamin Otte for his fantastic work on
the cairo-gl backend making it more faster and more robust, Andrea Canciani
for finding so many bugs and developing test cases for them, as well fixing
them. And last but not least we must all thank Adrian Johnson for
One major API changes since the last snapshot, and a whole slew of bugs
fixed and inconsistencies eliminated. Far too many bugs fixed to
individually identify. We need to thank Benjamin Otte for his fantastic
work on the cairo-gl backend making it faster and more robust, Andrea
Canciani for finding so many bugs and developing test cases for them, as
well fixing them. And last but not least we must all thank Adrian Johnson for
continuing to eliminate bugs and improving the PostScript and PDF backends.
This snapshot represents almost 4 months of bug fixing, bring Cairo to a
@ -17,6 +17,75 @@ Snapshot 1.9.8 (2010-06-12)
every other week leading to a 1.10 release with a target date of
2010-08-16.
API additions
-------------
CAIRO_FORMAT_RGB16_565
16 bit devices still remain popular, and so with great demand,
CAIRO_FORMAT_RGB16_565 has been restored enabling applications to create
and use 16 bit images as sources and render targets.
cairo_surface_create_for_rectangle()
It is common practice to cut an image up into many smaller pieces and use
each of those as a source - a technique called texture atlasing.
cairo_surface_create_for_rectangle() extends Cairo to directly support use
these subregions of another cairo_surface_t both as a source and as a render
target.
cairo_region_create()
cairo_region_create_rectangle ()
cairo_region_create_rectangles ()
cairo_region_copy ()
cairo_region_reference ()
cairo_region_destroy ()
cairo_region_equal ()
cairo_region_status ()
cairo_region_get_extents ()
cairo_region_num_rectangles ()
cairo_region_get_rectangle ()
cairo_region_is_empty ()
cairo_region_contains_rectangle ()
cairo_region_contains_point ()
cairo_region_translate ()
cairo_region_subtract ()
cairo_region_subtract_rectangle ()
cairo_region_intersect ()
cairo_region_intersect_rectangle ()
cairo_region_union ()
cairo_region_union_rectangle ()
The Cairo region API was actually added a couple of snapshots ago, but we
forgot to mention it at the time. A simple API for the handling of
rectangular pixel-aligned regions by Soeren Sandmann.
Backend-specific improvements
-----------------------------
cairo-gl
Benjamin Otte made more than 300 commits in which he refactored the cairo-gl
backend, reducing a lot of code duplication and enabled him to begin working
on improving performance by reducing state changes and associated overhead.
cairo-xlib
Access to the underlying connection to the Display is now thread-safe
enabling cairo-xlib to be used in a multi-threaded application without fear
of random corruption. Thanks Benjamin Otte!
cairo-xlib will now attempt to use PolyModeImprecise when compositing
trapezoids (i.e. a fill or a stroke operation with a non-trivial path) which
should allow hardware drivers more scope for accelerating the operation at
the cost of potentially incurring minute rendering errors. The mode can be
forced back to PolyModePrecise by setting the antialias parameter to
CAIRO_ANTIALIAS_SUBPIXEL.
cairo-svg
A notable improvement was contributed by Alexander Shulgin to enable SVG to
reference external image through the use an extended MIME data type.
Snapshot 1.9.6 (2010-02-19)
===========================
API additions