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@@ -1,3 +1,129 @@ +Release 1.15.4 (2016-12-9 Bryce Harrington <bryce@osg.samsung.com>) +======================================================================= +This new snapshot incorporates changes over the past year since the +1.15.2 snapshot, including all the fixes from the 1.14 release series. + +Of particular note in this snapshot is a wealth of work by Adrian +Johnson to enhance PDF support, as well as numerous bug fixes provided +by him and other contributors. + +For a complete log of changes since the last release, please see: + + http://cairographics.org/releases/ChangeLog.1.15.4 + +Features +-------- +* The PDF backend has gained support for a range of widely used + features, including thumbnails, page labels, metadata, document + outlines, structured text, hyperlinks, and tags. Tags permit adding + logical info such as headings, tables, figures, etc. that facilitates + indexing, accessibility, text reflow, searching, and extraction of the + tagged items to other software. For details on this new PDF + functionality, see: + + https://lists.cairographics.org/archives/cairo/2016-June/027427.html + + +API Changes +----------- + + cairo_win32_surface_create_with_format + + Added a cairo API to set up Win32 surfaces for HDC with alpha channels. + + cairo_pdf_surface_add_outline + cairo_pdf_surface_set_metadata + cairo_pdf_surface_set_page_label + cairo_pdf_surface_set_thumbnail_size + cairo_tag_begin + cairo_tag_end + CAIRO_STATUS_TAG_ERROR + + New API for added PDF functionality (see above), and new error + status item for problems relating to PDF tagging. + + CAIRO_STATUS_WIN32_GDI_ERROR + CAIRO_STATUS_FREETYPE_ERROR + CAIRO_STATUS_PNG_ERROR + + New error status items for handling of GDI, libfreetype, and libpng + errors, respectively. + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- +None + +Bug Fixes +--------- +* Bug fixes from 1.15.2 (see the 1.15.2 NEWS for details) + +* Fix playback of recording surfaces into PDF surfaces, where objects + with negative coordinates were not getting drawn. To address this, + the coordinate systems for PDF and PS have been changed to match + cairo's coordinate system. This allows recording surfaces to be + emitted in cairo coordinates, and results in the same origin being + used for all operations when using the recording surface XObject. + Test cases for PDF and PS have also been updated accordingly. + (Bug #89232) + +* Fix "invalidfont" error on some printers when printing PDFs with + embedded fonts that have glyphs (such as spaces) with + num_contours == 0. (Bug #79897) + +* Fix missing glyphs such as thin dashes, which get scaled to 0 in + userspace and thus have their drawing operations culled. (Bug #94615) + +* Fix other oddities caused by variously idiosyncratic fonts. + +* Fix deadlock when destruction of a scaled font indirectly triggers + destruction of a second scaled font, causing the global cache to be + locked twice. (Bug #93891) + +* Fix X errors reported to applications when shmdt() is called before + the Attach request is processed, due to missing xcb and xlib calls. + +* Fix random failure in record-paint-alpha-clip-mast test case, caused + by an incorrect assumption that a deferred clear can be skipped. + (Bug #84330) + +* Fix crash when dealing with an XShmGetImage() failure, caused by a + double free in _get_image_surface(). (Bug #91967) + +* Fix invalid execution of ASCII85 data by the PS interpreter that the + image operator didn't use, by flushing the extraneous data after + drawing the image. (Bug #84811) + +* Fix decoding of Adobe Photoshop's inverted CMYK JPEG files in PDF + export. + +* Fix unbounded surface assertion in win32-print code. + +* Fix a data race in freed_pool discovered by Firefox's cairo usage. + The patch adads atomic int load and store functions, with relaxed + memory ordering. (Bug #90318) + +* Cleanup debugging text sent to stdout instead of log. (Bug #95227) + +* Fix build issue when using non-GNU strings utility. (Bug #88639) + +* Fix build of cairo modules as regular modules, not as versioned shared + libaries. (Bug #29319) + +* Fix build on win32 using gcc 5.4. + +* Fix build of script backend to require zlib. + +* Update test suite reference images using Debian Jessie 64-bit and + poppler current as of June, 2016. + +* Various improvements to documentation and tests, compiler warning + fixes, and an assortment of code refactoring and cleanup. + + Release 1.15.2 (2015-12-10 Bryce Harrington <bryce@osg.samsung.com>) ======================================================================== This release is largely a rollup to include a variety of fixes that |