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NEWS: Add notes for cairo 1.2.2
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Carl Worth
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NEWS
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NEWS
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Release 1.2.2 (2006-08-08 Carl Worth <cworth@cworth.org>)
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=========================================================
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This is the first bug fix release in the 1.2 series since the original
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1.2.0 release made six weeks ago.
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There were some very serious bugs in the 1.2.0 release, (see below),
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so everybody is encouraged to upgrade from 1.2.0 to 1.2.2. The 1.2.2
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release maintains source and binary compatibility with 1.2.0 and does
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not make any API additions.
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Fix crashes with BGR X servers
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------------------------------
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With cairo 1.2.0 many people reported problems with all cairo-using
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programs, (including all GTK+ programs with GTK+ >= 2.8) immediately
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crashing with a complaint about an unsupported image format. This bug
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affected X servers that do not provide the Render extension and that
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provide a visual with BGR rather than RGB channel order.
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7294
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=9ae66174e774b57f16ad791452ed44efc2770a59
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Fix the "disappearing text" bug
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-------------------------------
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With cairo 1.2.0 many people reported that text would disappear from
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applications, sometimes reappearing with mouse motion or
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selection. The text would disappear after the first space in a string
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of text. This bug was caused by an underlying bug in (very common) X
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servers, and only affected text rendered without antialiasing, (either
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a bitmap font or a vector font with antialiasing disabled). The bug
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was also exacerbated by a KDE migration bug that caused antialiasing
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to be disabled more than desired.
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7494
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=456cdb3058f3b416109a9600167cd8842300ae14
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see also:
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Xorg: https://bugs.freedesktop.org/show_bug.cgi?id=7681
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KDE: http://qa.mandriva.com/show_bug.cgi?id=23990
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Fix broken image fallback scaling (aka. "broken printing")
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----------------------------------------------------------
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The various "print" backends, (pdf, ps, and svg), sometimes fallback
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to using image-based rendering for some operations. In cairo 1.2.0
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these image fallbacks were scaled improperly. Applications using cairo
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can influence the resolution of the image fallbacks with
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cairo_surface_set_fallback_resolution. With the bug, any calue other
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than 72.0 would lead to incorrect results, (larger values would lead
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to increasingly shrunken output).
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7533
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=1feb4291cf7813494355459bb547eec604c54ffb
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Fix inadvertent semantic change of font matrix translation (Behdad Esfahbod)
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----------------------------------------------------------------------------
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The 1.2.0 release introduced an inadvertent change to how the
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translation components of a font matrix are interpreted. In the 1.0
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series, font matrix translation could be used to offset the glyph
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origin, (though glyph metrics were reported incorrectly in
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1.0). However in 1.2.0, the translation was applied to the advance
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values betwen each glyph. The 1.2.0 behavior is fairly useless in
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practice, and it was not intentional to introduce a semantic
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change. With 1.2.2 we return to the 1.0 semantics, with a much better
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implementation that provides correct glyph metrics.
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=84840e6bba6e72aa88fad7a0ee929e8955ba9051
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Fix create_similar to preserve fallback resolution and font options (Behdad Esfahbod)
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-------------------------------------------------------------------------------------
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There has been a long-standing issue with cairo_surface_create_similar
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such that font options and other settings from the original
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destination surface would not be preserved to the intermediate
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"similar" surface. This could result in incorrect rendering
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(particulary with respect to text hinting/antialiasing) with
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fallbacks, for example.
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report: https://bugs.freedesktop.org/show_bug.cgi?id=4106
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fixes: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=9fcb3c32c1f16fe6ab913e27eb54d18b7d9a06b0
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http://gitweb.freedesktop.org/?p=cairo;a=commit;h=bdb4e1edadb78a2118ff70b28163f8bd4317f1ec
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xlib: Fix text performance regression from 1.0 to 1.2.0 (Vladimir Vukicevic)
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----------------------------------------------------------------------------
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Several people noticed that upgrading from cairo 1.0 to cairo 1.2.0
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caused a significant peformance regression when using the xlib
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backend. This performance regression was particularly noticeable when
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doing lots of text rendering and when using a high-latency connection
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to the X server, (such as a remote X server over an ssh
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connection). The slowdown was identified and fixed in 1.2.2.
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7514
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=b7191885c88068dad57d68ced69a752d1162b12c
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PDF: Eliminate dependency on FreeType library dependency (Adrian Johnson)
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-------------------------------------------------------------------------
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The cairo 1.2 series adds a supported pdf backend to cairo. In cairo
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1.2.0 this backend required the freetype library, which was an
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undesirable dependency on systems such as win32, (cairo is designed to
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always prefer the "native" font system). As of cairo 1.2.2 the
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freetype library is not required to use the pdf backend on the win32
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platform.
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7538
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=a0989f427be87c60415963dd6822b3c5c3781691
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PDF: Fix broken output on amd64 (Adrian Johnson)
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------------------------------------------------
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report: http://bugzilla.gnome.org/show_bug.cgi?id=349826
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=f4b12e497b7ac282b2f6831b8fb68deebc412e60
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PS: Fix broken output for truetype fonts > 64k (Adrian Johnson)
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---------------------------------------------------------------
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=067d97eb1793a6b0d0dddfbd0b54117844511a94
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PDF: Fix so that dashing doesn't get stuck on (Kent Worsnop)
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------------------------------------------------------------
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Kent notices that with the PDF backend in cairo 1.2.0 as soon as a
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stroke was performed with dashing, all subsequent strokes would also
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be dashed. There was no way to turn dashing off again.
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=778c4730a86296bf0a71080cf7008d7291792256
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Fix memory leaks in failure paths in gradient creation (Alfred Peng)
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--------------------------------------------------------------------
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=db06681b487873788b51a6766894fc619eb8d8f2
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Fix memory leak in _cairo_surface_show_glyphs (Chris Wilson)
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------------------------------------------------------------
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7766
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=e2fddcccb43d06486d3680a19cfdd5a54963fcbd
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Solaris: Add definition of cairo_private for some Sun compilers (Alfred Peng)
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-----------------------------------------------------------------------------
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report: https://bugzilla.mozilla.org/show_bug.cgi?id=341874
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=04757a3aa8deeff3265719ebe01b021638990ec6
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Solaris: Change version number of Sun's Xorg server with buggy repeat (Brian Cameron)
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-------------------------------------------------------------------------------------
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report: https://bugs.freedesktop.org/show_bug.cgi?id=7483
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fix: http://gitweb.freedesktop.org/?p=cairo;a=commit;h=e0ad1aa995bcec4246c0b8ab0d5a5a79871ce235
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Various memory leak fixes
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-------------------------
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Fix memory leak in _cairo_surface_show_glyphs (bug 7766)
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Fix file handle leak in failure path (bug 7616)
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Fix some memory leaks in the test cases.
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Fix some memory leaks in font subsetting code used in print backends.
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Documentation improvements (Behdad Esfahbod)
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--------------------------------------------
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Added new documentation for several functions (cairo_show_page,
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cairo_copy_page, cairo_in_stroke, cairo_in_fill).
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Fixed some syntax errors that were preventing some existing
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documentation from being published.
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Fixed several minor typographical errors.
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Added an index for new symbols in 1.2.
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Release 1.2.0 (2006-06-27 Carl Worth <cworth@cworth.org>)
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=========================================================
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This is the culmination of the work that has gone on within the 1.1
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