[cairo-commit] [cairo-www] 3 commits - src/news src/roadmap.mdwn
Carl Worth
cworth at freedesktop.org
Thu Apr 10 18:16:34 PDT 2008
src/news/cairo-1.6.0.mdwn | 230 ++++++++++++++++++++++++++++++++++++++++++++++
src/roadmap.mdwn | 16 +--
2 files changed, 237 insertions(+), 9 deletions(-)
New commits:
commit cdb15c807cd54179afe3efc05b60fa06f6c60c51
Author: Carl Worth <cworth at cworth.org>
Date: Thu Apr 10 18:16:15 2008 -0700
Underscore protection (again)
diff --git a/src/news/cairo-1.6.0.mdwn b/src/news/cairo-1.6.0.mdwn
index b3218fa..421fa27 100644
--- a/src/news/cairo-1.6.0.mdwn
+++ b/src/news/cairo-1.6.0.mdwn
@@ -154,13 +154,13 @@
much larger objects to be drawn before internal limits in cairo make
the drawing not work.
- The CAIRO_EXTEND_PAD mode is now fully supported by surface
- patterns. This mode allows applications to use cairo_rectangle and
- cairo_fill to draw scaled images with high-quality bilinear filtering
+ The `CAIRO_EXTEND_PAD` mode is now fully supported by surface
+ patterns. This mode allows applications to use `cairo_rectangle` and
+ `cairo_fill` to draw scaled images with high-quality bilinear filtering
for the internal of the image, but without any objectionably blurry
- edges, (as would happen with the default EXTEND_NONE and cairo_paint).
+ edges, (as would happen with the default `EXTEND_NONE` and cairo_paint).
- Rendering with CAIRO_ANTIALIAS_NONE has been fixed to be more
+ Rendering with `CAIRO_ANTIALIAS_NONE` has been fixed to be more
predictable, (previously image rendering and geometry rendering would
be slightly misaligned with respect to each other).
@@ -171,42 +171,42 @@
-------------
Several small features have been added to cairo with new API functions:
- cairo_format_stride_for_width
+ `cairo_format_stride_for_width`
Must be called to compute a properly aligned stride value before
- calling cairo_image_surface_create_for_data.
+ calling `cairo_image_surface_create_for_data`.
- cairo_has_current_point
+ `cairo_has_current_point`
Allows querying if there is a current point defined for the
current path.
- cairo_path_extents
+ `cairo_path_extents`
Allows querying for path extents, (independent of any fill or
stroke parameters).
- cairo_surface_copy_page
- cairo_surface_show_page
+ `cairo_surface_copy_page`
+ `cairo_surface_show_page`
Allow beginning a new document page without requiring a cairo_t
object.
- cairo_ps_surface_restrict_to_level
- cairo_ps_get_levels
- cairo_ps_level_to_string
- cairo_ps_surface_set_eps
+ `cairo_ps_surface_restrict_to_level`
+ `cairo_ps_get_levels`
+ `cairo_ps_level_to_string`
+ `cairo_ps_surface_set_eps`
Allow controlling the Post PostScript level, (2 or 3), to
target, as well as to generate Encapsulated PostScript (EPS).
- cairo_quartz_font_face_create_for_cgfont
+ `cairo_quartz_font_face_create_for_cgfont`
- Create a quartz-specific cairo_font_face_t from a CGFontRef.
+ Create a quartz-specific `cairo_font_face_t` from a CGFontRef.
- cairo_win32_font_face_create_for_logfontw_hfont
+ `cairo_win32_font_face_create_for_logfontw_hfont`
- Create a win32-specific cairo_font_face from a LOGFONTW and an
+ Create a win32-specific `cairo_font_face_t` from a LOGFONTW and an
HFONT together.
Thanks, Everyone!
commit 86210ef4bed160a0d805cb39ec52e5d9b234ce5a
Author: Carl Worth <cworth at cworth.org>
Date: Thu Apr 10 18:14:03 2008 -0700
Add cairo 1.6.0 news item
diff --git a/src/news/cairo-1.6.0.mdwn b/src/news/cairo-1.6.0.mdwn
new file mode 100644
index 0000000..b3218fa
--- /dev/null
+++ b/src/news/cairo-1.6.0.mdwn
@@ -0,0 +1,230 @@
+[[meta title="cairo 1.6.0 release available"]]
+[[meta date="2008-04-10"]]
+
+ From: Carl Worth <cworth at cworth.org>
+ Date: Thu, 10 Apr 2008 17:57:48 -0700
+ To: cairo-announce at cairographics.org
+ Cc: gnome-announce-list at gnome.org, pr at lwn.net
+ Subject: cairo release 1.6.0 now available
+
+ The cairo community is quite pleased to announce the 1.6.0 release of
+ the cairo graphics library. This is a major update to cairo, with new
+ features and enhanced functionality which maintains compatibility for
+ applications written using cairo 1.4, 1.2, or 1.0. We recommend that
+ anybody using a previous version of cairo upgrade to cairo 1.6.0.
+
+ The most significant new features in this release are dramatically
+ improved PDF and PostScript[*] output, support for arbitrary X server
+ visuals (including PseudoColor), a new Quartz backend, and and a new
+ "win32 printing" backend. See below for more details on these and
+ other new features.
+
+ Have fun with cairo!
+
+ -Carl
+
+ The new cairo 1.6.0 release is now available from:
+
+ http://cairographics.org/releases/cairo-1.6.0.tar.gz
+
+ which can be verified with:
+
+ http://cairographics.org/releases/cairo-1.6.0.tar.gz.sha1
+ 49d9d4c4796021c3ed02e5072e8ffe3a00ee4a77 cairo-1.6.0.tar.gz
+
+ http://cairographics.org/releases/cairo-1.6.0.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 1.6.0 tag which points to a commit named:
+ d6263bec89bcd1565fb0f56a9840cd6f7761097f
+
+ which can be verified with:
+ git verify-tag 1.6.0
+
+ and can be checked out with a command such as:
+ git checkout -b build 1.6.0
+
+ Summary of changes from cairo 1.4 to 1.6.0
+ ==========================================
+ [Note: For people following along, there have been no code changes at
+ all from the cairo 1.5.20 snapshot to cairo 1.6.0]
+
+ New dependency on external pixman library (Thanks, Søren!)
+ ----------------------------------------------------------
+ As of cairo 1.6, cairo now depends on the pixman library, for which
+ the latest release can be obtained alongside cairo:
+
+ http://cairographics.org/releases/pixman-0.10.0.tar.gz
+
+ This library provides all software rendering for cairo, (the
+ implementation of the image backend as well as any image fallbacks
+ required for other backends). This is the same code that was
+ previously included as part of cairo itself, but is now an external
+ library so that it can be shared by both cairo and by the X server,
+ (which is where the code originated).
+
+ Improved PDF, PostScript, and SVG output (Thanks, Adrian!)
+ ----------------------------------------------------------
+ Users of the cairo-pdf, cairo-ps, and cairo-svg should see a dramatic
+ improvement from cairo 1.2/1.4 to 1.6. With this release there are now
+ almost no operations that will result in unnecessary rasterization in
+ the PDF and PostScript. Rasterized "image fallbacks" are restricted
+ only to minimal portions of the document where something is being
+ drawn with cairo that is beyond the native capabilities of the
+ document, (this is rare for PDF or SVG, but occurs when blending
+ translucent objects for PostScript).
+
+ This means that the final output will be of higher quality, and will
+ also be much smaller, and therefore will print more quickly. The
+ machinery for doing analysis and minimal fallbacks also benefits the
+ win32-printing surface described below.
+
+ In addition to doing less rasterization, the PostScript and PDF output
+ also has several other improvements to make the output more efficient
+ and more compatible with specifications.
+
+ [*] Note: Just before this release, a bug has been reported that the
+ PostScript output from cairo can crash some printers, (so far the
+ following models have been reported as problematic Xerox Workcentre
+ 7228 or 7328 and Dell 5100cn). We will implement a workaround as soon
+ as we can learn exactly what in cairo's output these printers object
+ to, (and we could use help from users that have access to misbehaving
+ printers). This bug is being tracked here:
+
+ Printing some PDFs from evince is crashing our Xerox printer
+ http://bugs.freedesktop.org/show_bug.cgi?id=15348
+
+ New support for arbitrary X server visuals (Thanks, Keith and Behdad!)
+ ----------------------------------------------------------------------
+ As of cairo 1.6, cairo should now work with an arbitrary TrueColor or
+ 8-bit PseudoColor X server visual. Previous versions of cairo did not
+ support these X servers and refused to draw anything. We're pleased to
+ announce that this limitation has been lifted and people stuck with
+ ancient display systems need no longer be stuck with ancient software
+ just because of cairo.
+
+ New, supported Quartz backend for Mac OS X (Thanks, Brian and Vladimir!)
+ ------------------------------------------------------------------------
+ As of cairo 1.6, the cairo-quartz backend is now marked as "supported"
+ rather than "experimental" as in previous cairo releases. Its API now
+ has guarantees of API stability into future cairo releases, and its
+ output quality is comparable to other backends. There have been
+ significant improvements to cairo-quartz since 1.4. It now uses many
+ fewer image fallbacks, (meaning better performance), and has greatly
+ improved text rendering.
+
+ New, "win32 printing" backend (Thanks, Adrian and Vladimir!)
+ ------------------------------------------------------------
+ A new win32-printing surface has been added with an interface very
+ similar to the original win32 surface, (both accept an HDC
+ parameter). But this new surface should only be called with a printing
+ DC, and will result in all drawing commands being stored into a
+ meta-surface and emitted after each page is complete. This allows
+ cairo to analyze the contents, (as it does with PDF, PostScript, and
+ SVG backends), and to do minimal image-based fallbacks as
+ necessary. The analysis keeps things as efficient as possible, while
+ the presence of fallbacks, (when necessary), ensure the consistent,
+ high-quality output expected from cairo.
+
+ Robustness fixes (Thanks, Chris!)
+ ---------------------------------
+ There has been a tremendous number of improvements to cairo's
+ robustness. Areas that have been improved include:
+
+ * Proper reporting of errors
+
+ * Responding correctly to invalid input
+
+ * Avoiding integer overflows
+
+ * Avoiding memory leaks on error-recovery paths
+
+ * Making reference counting thread safe
+
+ * Exhaustive testing of memory allocation points
+
+ Other fixes (Thanks, everybody!)
+ --------------------------------
+ Cairo's internal fixed-point representation has been changed from
+ 16.16 to 24.8. This has a direct impact on applications as it allows
+ much larger objects to be drawn before internal limits in cairo make
+ the drawing not work.
+
+ The CAIRO_EXTEND_PAD mode is now fully supported by surface
+ patterns. This mode allows applications to use cairo_rectangle and
+ cairo_fill to draw scaled images with high-quality bilinear filtering
+ for the internal of the image, but without any objectionably blurry
+ edges, (as would happen with the default EXTEND_NONE and cairo_paint).
+
+ Rendering with CAIRO_ANTIALIAS_NONE has been fixed to be more
+ predictable, (previously image rendering and geometry rendering would
+ be slightly misaligned with respect to each other).
+
+ The reference manual at http://cairographics.org/manual now documents
+ 100% of the functions and types in cairo's public API.
+
+ API additions
+ -------------
+ Several small features have been added to cairo with new API functions:
+
+ cairo_format_stride_for_width
+
+ Must be called to compute a properly aligned stride value before
+ calling cairo_image_surface_create_for_data.
+
+ cairo_has_current_point
+
+ Allows querying if there is a current point defined for the
+ current path.
+
+ cairo_path_extents
+
+ Allows querying for path extents, (independent of any fill or
+ stroke parameters).
+
+ cairo_surface_copy_page
+ cairo_surface_show_page
+
+ Allow beginning a new document page without requiring a cairo_t
+ object.
+
+ cairo_ps_surface_restrict_to_level
+ cairo_ps_get_levels
+ cairo_ps_level_to_string
+ cairo_ps_surface_set_eps
+
+ Allow controlling the Post PostScript level, (2 or 3), to
+ target, as well as to generate Encapsulated PostScript (EPS).
+
+ cairo_quartz_font_face_create_for_cgfont
+
+ Create a quartz-specific cairo_font_face_t from a CGFontRef.
+
+ cairo_win32_font_face_create_for_logfontw_hfont
+
+ Create a win32-specific cairo_font_face from a LOGFONTW and an
+ HFONT together.
+
+ Thanks, Everyone!
+ -----------------
+ I've accounted for 32 distinct people with attributed code added to
+ cairo between 1.4.14 and 1.6.0, (their names are below). That's an
+ impressive number, but there are certainly dozens more that
+ contributed with testing, suggestions, clarifying questions, and
+ encouragement. I'm grateful for the friendships that have developed as
+ we have worked on cairo together. Thanks to everyone for making this
+ all so much fun!
+
+ Adrian Johnson, Alp Toker, Antoine Azar, Behdad Esfahbod,
+ Benjamin Otte, Bernardo Innocenti, Bertram Felgenhauer,
+ Boying Lu, Brian Ewins, Carl Worth, Chris Heath, Chris Wilson,
+ Claudio Ciccani, Emmanuel Pacaud, Jeff Muizelaar, Jeremy Huddleston,
+ Jim Meyering, Jinghua Luo, Jody Goldberg, Jonathan Gramain,
+ Keith Packard, Ken Herron, Kouhei Sutou, Kristian Høgsberg,
+ Larry Ewing, Martin Ejdestig, Nis Martensen, Peter Weilbacher,
+ Richard Hult, Shailendra Jain, Søren Sandmann Pedersen,
+ Vladimir Vukicevic
commit dde763c117f1a67c1f24205dd2de7a05fb27b812
Author: Carl Worth <cworth at cworth.org>
Date: Thu Apr 10 12:32:00 2008 -0700
roadmap: Slide last little niggles from 1.6.0 to 1.6.x
diff --git a/src/roadmap.mdwn b/src/roadmap.mdwn
index a74b527..573088a 100644
--- a/src/roadmap.mdwn
+++ b/src/roadmap.mdwn
@@ -97,15 +97,6 @@ abgr8888) (in 1.5.2)
✓ Fix pdf and svg bugs with cairo_mask (in 1.5.20)
-## In-progress
-
- • Investigate extend-reflect/buggy_repeat X server crash to try to
- find the exact version where the bug was fixed in the X server.
-
- • Run "make check-valgrind" and ensure there are no leaks
-
- • Cleanup warnings
-
# cairo 1.6.x (Currently unscheduled)
• Add dithering for xlib fallbacks (behdad)
@@ -148,6 +139,13 @@ abgr8888) (in 1.5.2)
https://bugzilla.mozilla.org/show_bug.cgi?id=409227
+ • Investigate extend-reflect/buggy_repeat X server crash to try to
+ find the exact version where the bug was fixed in the X server.
+
+ • Fix leaks found by "make TESTS=self-copy check-valgrind"
+
+ • Investigate cleaning up "unused parameter" warnings
+
# cairo 1.8 (November 2008?)
• David Turner's [cairo-ft rewrite][]. (behdad)
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