[cairo-commit] [cairo-www] 2 commits - src/news src/todo.mdwn
Carl Worth
cworth at freedesktop.org
Fri Jun 12 12:37:42 PDT 2009
src/news/cairo-1.9.2.mdwn | 192 ++++++++++++++++++++++++++++++++++++++++++++++
src/todo.mdwn | 2
2 files changed, 194 insertions(+)
New commits:
commit 08942d6bdf731eafdadce23aec0da317ad550490
Author: Carl Worth <cworth at cworth.org>
Date: Fri Jun 12 12:37:32 2009 -0700
todo: Add cairo_in_clip
Somebody suggested this one on tha mailing list. Noting it
here so we don't forget it.
diff --git a/src/todo.mdwn b/src/todo.mdwn
index 6282d76..95dcf92 100644
--- a/src/todo.mdwn
+++ b/src/todo.mdwn
@@ -97,6 +97,8 @@ Changes that add new API (API changes/removals will not be considered)
* Add support for backends implemented in external libraries. See: [[user_backends]]
+ * Add a `cairo_in_clip` function
+
* Export `cairo_surface_snapshot`
* Export meta surfaces
commit cfc671eeb87e931091a31f5b6a4db5b980b3fbf8
Author: Carl Worth <cworth at cworth.org>
Date: Fri Jun 12 12:36:32 2009 -0700
news: Add cairo 1.9.2 snapshot announcement
diff --git a/src/news/cairo-1.9.2.mdwn b/src/news/cairo-1.9.2.mdwn
new file mode 100644
index 0000000..d12d501
--- /dev/null
+++ b/src/news/cairo-1.9.2.mdwn
@@ -0,0 +1,192 @@
+[[meta title="cairo 1.9.2 snapshot available"]]
+[[meta date="2009-06-12"]]
+
+ From: Carl Worth <cworth at cworth.org>
+ Date: Fri, 12 Jun 2009 12:25:50 -0700
+ To: cairo-announce at cairographics.org
+ Subject: cairo snapshot 1.9.2 now available
+
+ A new cairo snapshot 1.9.2 is now available.
+
+ This is a snapshot of current development leading up to an eventual
+ 1.10 release.
+
+ Since this is a development snapshot, (not a "release"), one should not
+ expect cairo 1.9.2 to meet the same high standards as major cairo
+ releases. In particular:
+
+ * Any new API in this release may change before 1.10
+
+ We think we've got the new API right, but we reserve the right
+ to change things as new problems are discovered.
+
+ * The test suite is known to not pass, which indicates likely bugs
+
+ * There's a serious bug in PDF output related to the new "COW
+ snapshots" feature, (see more on this below). When the same
+ image is used on multiple pages it can appear in the wrong
+ position on pages after the first, (appearing in the same
+ position as on the first page).
+
+ * Plenty of other bugs are possible.
+
+ As always, we appreciate anyone willing to give our half-finished code a
+ look, and we will greatly appreciate feedback and bug reports.
+
+ Have fun with cairo, everybody!
+
+ -Carl
+
+ PS. I'd like to extend special notice to some particularly prolific
+ cairo contributors. Adrian Johnson, Behdad Esfahbod, Jeff Muizelaar,
+ M Joonas Pihlaja, and Søren Sandmann Pedersen have each contributed on
+ the order of 50 commits to this release. And Chris Wilson has made a
+ phenomenal 500 commits! Well done, everybody.
+
+ Where to get cairo 1.9.2
+ ========================
+
+ http://cairographics.org/snapshots/cairo-1.9.2.tar.gz
+
+ which can be verified with:
+
+ http://cairographics.org/snapshots/cairo-1.9.2.tar.gz.sha1
+ 0dc542447fc46d77a3106afff4445d6e668d76e6 cairo-1.9.2.tar.gz
+
+ http://cairographics.org/snapshots/cairo-1.9.2.tar.gz.sha1.asc
+ (signed by Carl Worth)
+
+ Additionally, a git clone of the source tree:
+
+ git clone git://git.cairographics.org/git/cairo
+
+ will include a signed 1.9.2 tag which points to a commit named:
+ e9b9d2a7c17ca4b2bc2991fdc4893aed850578db
+
+ which can be verified with:
+ git verify-tag 1.9.2
+
+ and can be checked out with a command such as:
+ git checkout -b build 1.9.2
+
+
+ What's new in cairo 1.9.2 (compared to cairo 1.8.x)
+ ===================================================
+ API additions:
+
+ cairo_surface_set_mime_data()
+ cairo_surface_get_mime_data()
+
+ Should this take unsigned int, unsigned long or size_t for the length
+ parameter? (Some datasets may be >4GiB in size.)
+
+ Associate an alternate, compressed, representation for a surface.
+ Currently:
+ "image/jp2" (JPEG2000) is understood by PDF >= 1.5
+ "image/jpeg" is understood by PDF,PS,SVG,win32-printing.
+ "image/png" is understood by SVG.
+
+ cairo_pdf_version_t
+ cairo_pdf_surface_restrict_to_version()
+ cairo_pdf_get_versions()
+ cairo_pdf_version_to_string()
+
+ Similar to restrict to version and level found in SVG and PS,
+ these limit the features used in the output to comply with the PDF
+ specification for that version.
+
+ CAIRO_STATUS_INVALID_SIZE
+ Indicates that the request surface size is not supported by the
+ backend. This generally indicates that the request is too large.
+
+ CAIRO_STATUS_USER_FONT_NOT_IMPLEMENTED
+ Indicates that a required callback for a user-font was not implemented.
+
+ CAIRO_STATUS_LAST_STATUS
+ This is a special value to indicate the number of status values enumerated
+ at compile time. (This may differ to the number known at run-time.)
+
+ The built-in twin font is now called "@cairo:" and supports a limited set
+ of options like "@cairo:mono". Where are these specified?
+
+ cairo_in_fill() now uses HTML Canvas semantics, all edges are inside.
+
+ New experimental backends:
+
+ CairoScript
+
+ New utility:
+
+ cairo-trace and cairo-perf-trace
+
+ cairo-trace generates a human-readable, replayable, compact(-ish!)
+ representation of the sequences of drawing commands made by an
+ application.
+
+ Under the util/cairo-script directory is a library to replay traces.
+
+ perf/cairo-perf-trace replays traces against multiple backends
+ and makes useful benchmark reports. This is integrated with
+ 'make perf'. You may collect your own traces or take advantage
+ of traces collected by the community:
+
+ git://git.cairographics.org/git/cairo-traces
+
+ (Put this into perf/cairo-traces to run these as part of "make perf".)
+
+ There is additional WIP in building a debugging tool for cairo applications
+ based on CairoScript (currently very preliminary, mostly serves to show
+ that GtkSourceView is too slow) :
+
+ people.freedesktop.org:~ickle/sphinx
+
+ Test suite overhaul:
+
+ The test suite is undergoing an overhaul, primarily to improve its speed
+ and utility. (Expect more changes in the near future to improve XFAIL
+ handling.)
+
+ Optimisations:
+ polygon rasterisation! Joonas implemented the Tor polygon scan converter,
+ on typical geometry is about 30% faster for the image backend.
+
+ Bovine Polaroids! For those not in on the joke, this is the long
+ awaited "copy-on-write snapshot" or "COW snapshot" support. The
+ user-visible feature is that including the same image multiple times
+ into a PDF file should result in only a single instance of that
+ image in the final output. This is unlike previous versions of cairo
+ which would generate very large PDF files with multiple copies of
+ the same image. Adrian says that the PDF is not quite working as
+ well as it should yet, so we hope for futher improvements before
+ cairo 1.10.
+
+ Bug fixes:
+
+ EXTEND_PAD.
+
+ Better handling of large scale-factors on image patterns.
+
+ Emit /Interpolate for PS,PDF images.
+
+ Global glyph cache - cap on the total number of inactive glyphs,
+ should prove fairer for fonts with larger glyph sets.
+
+ Compilation without fontconfig
+
+ Improved handling of low-bitdepth sources (e.g. copying the contents
+ of 16-bit xserver windows)
+
+ Regressions:
+
+ cairo_traps_extract_region >10x slower. Fix pending.
+
+ Still to come:
+
+ Region tracking API (ssp) for damage tracking, hit testing etc
+ mime-surface
+
+ An expiremental OpenGL backend?
+
+ Tweaks to tessellator, allocations of patterns, delayed
+ initialisation of the xlib backend (reduce the cairo overhead of
+ render_bench by ~80%).
More information about the cairo-commit
mailing list