From: Carl Worth <firstname.lastname@example.org> Date: Fri, 11 Apr 2008 10:24:54 -0700 To: email@example.com Cc: firstname.lastname@example.org Subject: cairo release 1.6.2 now available The cairo community is pleased (but somewhat sheepish) to announce the 1.6.2 release of the cairo graphics library. This is an update to yesterday's 1.6.0 release with an important fix to prevent cairo's PostScript output from crashing some printers. This release also includes a locking fix for cairo's xlib backend to improve thread safety. There are no changes beyond these two fixes. See below for more details. Have fun with cairo! -Carl Release 1.6.2 (2008-04-11 Carl Worth <email@example.com>) ========================================================= A new cairo release 1.6.2 is now available from: http://cairographics.org/releases/cairo-1.6.2.tar.gz which can be verified with: http://cairographics.org/releases/cairo-1.6.2.tar.gz.sha1 5b69fcab20c442df132515c1bfe10b9525f66de0 cairo-1.6.2.tar.gz http://cairographics.org/releases/cairo-1.6.2.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 1.6.2 tag which points to a commit named: 5bc6fd71398f8aa902fcffe2da5d1e70fb94aa8a which can be verified with: git verify-tag 1.6.2 and can be checked out with a command such as: git checkout -b build 1.6.2 Summary of changed from cairo 1.6.0 to 1.6.2 ============================================ Fix for PostScript printer crash -------------------------------- Adrian Johnson discovered that cairo 1.6.0 was being a bit hard on PostScript printers, by changing the font matrix very frequently. This causes some PostScript interpreters to allocate new font objects every few glyphs, eventually exhausting available resources. The fix involves leaving translational components of the font matrix as zero, so that the PostScript interpreter sees an identical font matrix repeatedly, and can more easily share internal font object resources. This fix has been tested to resolve the bugs posted here, (for both Xerox and Dell printers): Printing some PDFs from evince is crashing our Xerox printer http://bugs.freedesktop.org/show_bug.cgi?id=15348 Cairo-generated postscript blocks Dell 5100cn http://bugs.freedesktop.org/show_bug.cgi?id=15445 Add missing locking in cairo-xlib --------------------------------- Chris Wilson noticed that cairo 1.6.0 was manipulating an internal cache of GC object within cairo's Xlib backend without proper locking. The missing locking could cause failures for multi-threaded applications. He fixed this in 1.6.2 by adding the missing locks. Log of all commits from cairo 1.6.0 to 1.6.2 ============================================ Adrian Johnson (1): PS: Fix inefficient implementation of Tm/Td operators that was crashing printers Carl Worth (3): Increment version to 1.6.1 after 1.6.0 release NEWS: Add notes for 1.6.2 release Increment version to 1.6.2 Chris Wilson (1): [xlib] Add locking around GC cache.