[cairo-commit] [cairo-www] src/news
Bryce Harrington
bryce at freedesktop.org
Mon Oct 13 20:44:26 PDT 2014
src/news/cairo-1.14.0.mdwn | 542 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 542 insertions(+)
New commits:
commit d79fe557b757f2e1acfef3936c363e5a1fc96a08
Author: Bryce Harrington <bryce at osg.samsung.com>
Date: Mon Oct 13 20:44:15 2014 -0700
Add news item for 1.14 release
diff --git a/src/news/cairo-1.14.0.mdwn b/src/news/cairo-1.14.0.mdwn
new file mode 100644
index 0000000..8de8eea
--- /dev/null
+++ b/src/news/cairo-1.14.0.mdwn
@@ -0,0 +1,542 @@
+[[!meta title="cairo 1.14.0 snapshot available"]]
+[[!meta date="2014-10-13"]]
+
+ Date: Mon, 13 Oct 2014 20:31:36 -0700
+ From: Bryce Harrington <bryce at osg.samsung.com>
+ Subject: [cairo] cairo release 1.14.0 now available
+
+ A new cairo release 1.14.0 is now available from:
+
+ http://cairographics.org/releases/cairo-1.14.0.tar.xz
+
+ which can be verified with:
+
+ http://cairographics.org/releases/cairo-1.14.0.tar.xz.sha1
+ 53cf589b983412ea7f78feee2e1ba9cea6e3ebae cairo-1.14.0.tar.xz
+
+ http://cairographics.org/releases/cairo-1.14.0.tar.xz.sha1.asc
+ (signed by Bryce Harrington)
+
+ Additionally, a git clone of the source tree:
+
+ git clone git://git.cairographics.org/git/cairo
+
+ will include a signed 1.14.0 tag which points to a commit named:
+ f6fd372a8b31a0bebbdfe36090d6ffc7bab9a2f8
+
+ which can be verified with:
+ git verify-tag 1.14.0
+
+ and can be checked out with a command such as:
+ git checkout -b build 1.14.0
+
+
+ Release 1.14.0 (2014-10-13 Bryce Harrington <bryce at osg.samsung.com>)
+ ====================================================================
+ Hard to believe it's been over a year since our last release, but it's
+ not for lack of activity. This release includes contributions of a wide
+ assortment of bug fixes, build system improvements, warnings cleanups,
+ codebase refactoring, test suite repairs, and static analysis work.
+
+ This release is lighter on features (compared with 1.12.10) but includes
+ a highly demanded rehaul of our image downscaling functionality, which
+ solves a serious problem experienced by Inkscape users when shrinking
+ embedded bitmaps in SVG files. The new scaling algorithms are used by
+ the image backend and by other backends as needed for fallbacks.
+
+
+ Features
+ --------
+
+ Filtering improvements for the image backend, in particular
+ down-scaling of images produces filtered images that depend on all the
+ pixels of the source. When using the image backend you get the
+ following settings:
+
+ CAIRO_FILTER_GOOD: uses a box filter for scales less than .75 in
+ either direction. For scales larger than this, the same filter as
+ CAIRO_FILTER_BILINEAR is used.
+
+ CAIRO_FILTER_BEST: uses a Catmull-Rom filter always. When upscaling
+ more than 2x this will produce anti-aliased square pixels, similar
+ to OS/X.
+
+ CAIRO_FILTER_GAUSSIAN: uses PIXMAN_FILTER_BEST, which in current
+ pixman is the same as BILINEAR. (This is subject to change in the
+ future).
+
+ xlib and xcb also use the image fallback for GOOD/BEST filters, but
+ note that other backends do not implement these filtering fixes yet,
+ however other actions may cause them to use an image fallback which
+ will cause these filters to be used.
+
+ Improve handling of device transformation and scaling, allowing Cairo
+ to now support scaling at a device level, permitting easier, more
+ transparent HiDPI support.
+
+ Support JBIG2 mime data in PDF. This allows embedding of more
+ compressed JPEG formats within PDF, rather than including the full
+ uncompressed image. Also, reduce the number of transparency groups
+ used by PDF to keep the file size small and viewing/printing of the
+ PDF fast.
+
+ Expand the embedding section to include stencil mask support.
+
+ Reorder font declarations to be in natural order.
+
+ Update the Skia backend to build against current Skia (as of June
+ 2014).
+
+ Drop Link-Time Optimization (LTO) support from build system. This
+ seems to have caused much trouble for unclear benefit, and most
+ distros are reverting or disabling it anyway.
+
+ Optimize VBO size on GL to 1M and to 16k for EGL. This improves
+ (theoretical) performance for desktop GLX use cases while avoiding
+ hitting VBO memory size limitations on embedded devices.
+
+ API Changes
+ -----------
+
+ cairo_surface_set_device_scale, cairo_surface_get_device_scale:
+
+ Sets a scale that is multiplied to the device coordinates
+ determined by the CTM when drawing to @surface. One common use for
+ this is to render to very high resolution display devices at a scale
+ factor, so that code that assumes 1 pixel will be a certain size
+ will still work.
+
+ cairo_egl_device_get_display, cairo_egl_device_get_context:
+
+ Support get/set of EGLContext and EGLDisplay for egl-based cairo
+ devices, similar to GLX.
+
+ Dependency Changes
+ ------------------
+
+ Cairo now requires glib 2.14 for its gobject helper functions,
+ and pixman 0.30 for downscaling.
+
+
+ Bug fixes
+ ---------
+
+ Don't embed CMYK Jpeg images in svg.
+
+ Fix tests to place output in proper location.
+
+ Fix determination of alpha for all surfaces when recording.
+
+ Extend oversize check to cairo_gl_surface_create_for_texture, so an
+ error surface is returned if the texture is too large to render to.
+
+ Fix embedding of mime data in PDF and PS files.
+
+ Remove useless error handling in *_reply() functions in XCB.
+
+ Fix a double-free exposed by multithreaded apps creating and
+ destroying the same font concurrently.
+ https://bugs.freedesktop.org/show_bug.cgi?id=69470
+
+ Fix corrupt stacks produced by bugs in operand emission for trace.
+
+ Fix out of bounds array access in format cache for xlib
+
+ Don't rename glyphs used by seac operator. This can cause certain
+ combined characters to use their decorations (e.g. umlauts on ö) to be
+ lost during printing of PDFs using evince.
+ https://bugs.freedesktop.org/show_bug.cgi?id=70364
+
+ Fix crash on calling cairo_create with a finished surface
+
+ Fix SSIZE_T definition problem when making with MSYS on Windows7
+
+ Fix one off issue in gl context cleanup
+
+ Fix usage of CAIRO_STACK_ARRAY_LENGTH
+
+ Fix rectangle stroke with non rectilinear pen
+
+ Fix imagemask with pattern source failure on some printers. This bug
+ could cause files converted using pdftops to fail for example on Ricoh
+ printers, or opening in Adobe Distiller on Windows.
+ https://bugs.freedesktop.org/show_bug.cgi?id=69485
+
+ Fix whitespace in font names
+
+ Fix page size in generated PDFs. When printing using pdftocairo on
+ larger page sizes, such as 11x17, the image would be cropped to letter
+ size.
+ https://bugs.freedesktop.org/show_bug.cgi?id=73452
+
+ Fix path-currentpoint test by preserving current-point in
+ copy_path()/append_path() sequence
+
+ Fix generation of HTML in code docs for
+ cairo-format-stride-for-width. Raw HTML code was being passed
+ to the browser, instead of displaying normally.
+ https://bugs.freedesktop.org/show_bug.cgi?id=63257
+
+ Fix spelling of "tessellator" throughout code. We're using the
+ American rather than British spelling of this word.
+ https://bugs.freedesktop.org/show_bug.cgi?id=50411
+
+ Fix crash in pixman_image_composite32
+
+ Fix crash when trying to modify a (const) all-clipped cairo_clip_t
+ https://bugs.freedesktop.org/show_bug.cgi?id=75819
+
+ Add check_composite method to all compositors, to fix crashes in the
+ test suite.
+
+ Fix crash in Firefox when scrolling on certain pages.
+
+ Fix memory leaks found by static analysis.
+
+ Fix build of any2ppm if fork is not available.
+
+ Fix broken build for Qt backend, due to missing libstdc++.
+
+ Fix typo in two cairo_uint128 functions. Fixes potential build issues
+ on systems without a uint128 type.
+
+ Fix build when --enable-pdf=no
+
+ Fix cache_frozen assertions for Win32 print.
+
+ Correctly check for xcb image surface for inplace upload
+
+ Fix webkit-based web browser crashes due to empty boxes by skipping
+ over them when tesselating.
+
+ Make pixman, libpng, and zlib paths commandline configurable for win32
+ builds.
+
+ Fix image scale on Win32 when GDI scale is not identity.
+
+ Fix float endian configure test when using clang -O4
+
+ Fix compilation with Android bionic libc
+
+ Don't try to build util/sphinx on Windows
+
+ Fix loss of precision when emitting joins. This was caused by
+ discrepancies in line gradients when passing trapezoids around.
+
+ Fix loss of precision and associated rendering issues in
+ cairo-tor-scan-converter from projection onto sample grid.
+
+ Fix pixman oversampling of neighbouring edges within a cell by
+ eliminating self-intersections for the pixman traps compositor.
+
+ Fix multi-line string splitting in PDFs
+
+ Various cleanups and fixes to warnings, documentation, tests, and
+ build system. Improve error handling and return value checks.
+ Cleanup XFAIL tests and reference images. Cover recently added
+ functionality.
+
+
+
+ Complete list of changes from 1.12.16 to 1.14.0
+ -----------------------------------------------
+
+ Adrian Johnson (24):
+ Downscaling requires pixman 0.30
+ svg: Don't embed CMYK Jpeg images
+ pdf: avoid making groups a transparency group if not required
+ pdf: fix embedding of mime data that has been broken since 0a10982f
+ ps: fix embedding of mime data
+ pdf: support JBIG2 mime data
+ test: update mime-data to test jbig2 mime types
+ pdf: combine source and mask images into single image
+ pdf: Support stencil masks with jpeg/jpx/jbig2 embedding
+ pdf: stencil masks may be opaque
+ type1-subset: don't rename glyphs used by seac operator
+ pdf/ps: avoid outputting excess decimal places in matrices
+ Add test for rectangle path optimization with non rectilinear pen
+ pdf: fix rectangle stroke with non rectilinear pen
+ Add test for paint with alpha and clipping bug
+ ps: remove duplicate /Interpolate from image dictionary
+ ps: fix imagemask with pattern source failure on some printers
+ ps: use setpagedevice to set page size
+ ps: cairo_set_page_size does not need to be in eps output
+ ps: add font DSC comments
+ type1: strip space from end of font name
+ win32 printing: fix image scale when GDI scale is not identity
+ Fix compilation with bionic libc
+ pdf: don't use '\' to split strings across multiple lines
+
+ Alexander Larsson (10):
+ gstate: Respect device transform in stroke
+ default-context: Inherit device scale in push_group surface
+ subsurface: Handle device scales
+ gstate: Move device-scale font scaling to gstate
+ gstate: Handle device scale on surface as source
+ surface: expose the device scale
+ tests: Add device scale test to "full" testrun similar to offsets
+ surface: Opencode create_similar
+ surface: Merge scratch construction into _cairo_surface_create_scratch
+ surface: Inherit device scale in cairo_surface_create_similar()
+
+ Andrea Canciani (2):
+ quartz: Fix build
+ quartz-image: Fix build
+
+ Behdad Esfahbod (9):
+ Check for XRenderSolidFill()
+ [tests] Add path-currentpoint
+ Preserve current-point in copy_path()/append_path() sequence
+ Revert "[ft] Fix memory bug in copying bitmaps"
+ chmod a+x cairo-trace
+ [trace] Don't print FC_CHARSET, FC_LANG, and FC_CAPABILITY
+ [cairo-trace] Work around fontconfig :charset= parse format change
+ Binary mode in any2ppm
+ More binary mode for Windows
+
+ Benjamin Otte (1):
+ xlib: Fix typo in documentation
+
+ Bill Spitzak (8):
+ V6 image: Use convolution filters for sample reconstruction when downscaling
+ V5: Use NEAREST filter when possible
+ image: Move filter decision to _cairo_pattern_analyze_filter
+ xlib: Add symbols to indicate if XRender supports GOOD/BEST filtering
+ xlib: Use image fallback for GOOD/BEST filters
+ xcb: Add switches for whether XRender supports GOOD/BEST filtering
+ xcb: Use image fallback for GOOD/BEST filters
+ image: Corrected extents calculations
+
+ Bryce Harrington (65):
+ test: Add test for image downscaling
+ test: Test a variety of scales when downscaling
+ test: Exercise image scaling quality when downscaling
+ test: Move cairo_pattern_set_filter to after cairo_set_source_surface
+ test: Drop unnecessary math.h include
+ Fix SSIZE_T definition problem when making with MSYS on Windows7
+ test: Replace deprecated rsvg_init() in any2ppm test
+ test: Handle error in fgets call in ps-eps test
+ test: Drop unused path variable in two recently added tests
+ cairo-trace: Stringify CAIRO_STATUS_JBIG2_GLOBAL_MISSING
+ cairo-script: Error if asked to decompress with missing compression lib
+ cairo-script: Compare status with CSI enums
+ perf: Guarantee path width is non-negative
+ test: Quell warning for inclusion of old rsvg header files
+ test: Quell warning for deprecated g_type_init()
+ xml: Drop unused variable
+ xml: constify source objects for emit routines
+ mesh: Avoid theoretical infinite loops
+ gl: Handle PIXMAN_a8r8g8b8_sRGB format in switch
+ image: Fix bad HTML generation in code docs for cairo-format-stride-for-width
+ Add explanation to enum _cairo_int_status
+ Add explanation to _cairo_surface_create_in_error
+ Add comment to explain _cairo_edge_compute_intersection_*
+ Correct spelling of "tessellator" throughout code
+ gitignore: Ignore generated tmpl dir in public docs
+ doc: Add missing sections and symbols for public docs
+ doc: Drop a couple quartz routines which distcheck claims don't exist
+ Mark recently added _cairo_output_stream_print_matrix private symbol
+ surface: Make parameter naming consistent between header and impl
+ Document that libglib2.0-doc is needed to avoid some xref warnings
+ skia: Add section definitions and code docs for skia backend
+ perf: Refactor some common macros to cairo-perf.h
+ NEWS: Add bug links and reword feature and bug descriptions
+ Fix segfault in firefox when scrolling on certain pages
+ .gitignore: Ignore two generated files in build/
+ configure.ac: Quell warnings about AM_PROG_AR when using automake 1.12
+ configure.ac: Add a --disable-lto configure option
+ configure.ac: Fix broken build for Qt backend
+ cairo-wideint: Fix typo in two cairo_uint128 functions
+ xlib: Fix mispelling in a comment
+ Disable font options for xcb.
+ NEWS: Bring up to date with recent bug fixes.
+ README: Update required dependencies
+ AUTHORS: Add Ravi, myself, and a couple other frequent contributors
+ NEWS: Drop unfinished thought
+ cairo-gl: Make VBO size run-time settable
+ gl: Track the VBO size as a property of the ctx
+ gl: Increase default VBO size on GL to 1M
+ NEWS: Note that downscaling changes only affect image + fallback
+ Don't return NULL to clients when getting image
+ Don't return NULL to clients when getting device
+ build: Fix float endian configure test when using clang -O4
+ NEWS: Revise downscaling feature description
+ sphinx: Add ickle's explanation of what sphinx does
+ quartz: Check for quartz surface type before conversion
+ Declare as private the new cairo_lines_compare_at_y symbol
+ Get make check back to a happy spot
+ test: Fix error message to specify the executable that was missing
+ test: Add an update-refs.sh script to update reference images
+ test: Update pixman downscaling 95 reference images
+ NEWS: Update with latest changes and finalize for release
+ NEWS: Flesh out docs for new APIs
+ 1.14.0 release
+ pattern: Restore dropped inclusion of cairoint.h
+ Start 1.14.1 development
+
+ Bryce W. Harrington (10):
+ test: Don't ignore test output files left in test directory
+ test: Fix several tests to place output files in the output directory
+ test: Make cairo_test_mkdir() usable throughout tests.
+ test: Ensure output dirs exist, falling back to current dir if needed
+ svg, test: Refer to output filename by variable, not a hardcoded value
+ gitignore: Ignore build chaff when configuring with --enable-gtk-doc
+ test: Comma separate keywords
+ test: Space out keywords for clarity
+ test: Document use of -k and CAIRO_TEST_TARGET to run test subsets
+ NEWS: Summarize recent changes
+
+ Chris Wilson (35):
+ Post-release version bump
+ Bump version for new development tree, 1.13.1
+ spans,traps: Undo device transform from source matrix for recording replays
+ test: Allow CAIRO_TEST_MODE to independently enable extended testing
+ trace: Record set-device-scale
+ script: Add support for replaying device-scale
+ test/pixman-downscale: Open-code fmin()
+ font: Push the last reference dec into the backend->destroy() callback
+ trace: Fix operand emission
+ win32: Reorder font declarations to be in natural order
+ clip: Do not modify the special all-clipped cairo_clip_t
+ xlib: Undo debug hack to force fallbacks
+ traps,xcb: Prefilter zero-area boxes when converting traps
+ traps,xcb: Set the box count after filtering
+ arc: Insert the initial point on the arc
+ test: Exercise stroking bugs with xlib/trapezoids
+ test/coverage: Exercise invariance under mirror symmetry
+ stroke,traps: Emit join without loss of precision
+ test: Remove redundant reference images
+ tor: Fix loss of precision from projection onto sample grid
+ test: Include coverage in the normal test run
+ tor: Review full-row walker
+ test: Remove more duplicated reference images
+ test: Explicitly flip the reference image for recordflip
+ test: Add another coverage example demonstrating the seams in tor
+ test: Fix coverage-abutting
+ test: Add a simple rasteriser to check fidelity of edge rendering
+ test/simple: Tighten sanity checks in reference image generator
+ tor: Perform analytic coverage over the pixel not sample points
+ tor: Enable analytic processing for starting rows
+ test: Refresh reference images for tor rendering changes
+ image: Eliminate self-intersections for the pixman traps compositor
+ test: Add whole flipped replays
+ test: Teach check-preprocessor-syntax.sh about -inlines.h
+ test: Fix conflation of different device scales in index.html
+
+ David Weiß (1):
+ made paths to pixman, libpng and zlib configurable by commandline for win32 builds
+
+ Eric Le Bihan (1):
+ test: fix build of any2ppm if fork not available
+
+ Henry Song (1):
+ gl: Fix one off issue in context cleanup
+
+ Jeff Muizelaar (2):
+ Don't use __FUNCTION__ as a string literal
+ clang-cl: Use size of the pointer explicitly
+
+ Koji Egashira (1):
+ image: Add NULL checks for return value of _pixman_image_for_color()
+
+ Kouhei Sutou (1):
+ cairo_create(): Add finished surface check
+
+ Krzysztof Kosiński (1):
+ image: Use convolution filters for sample reconstruction when downscaling
+
+ Lukáš Lalinský (1):
+ xcb: Initialize font options from Xft resources
+
+ Maks Naumov (3):
+ Fix width and height args for _cairo_xcb_connection_copy_area()
+ Fix font x_scale value in _compute_transform()
+ Fix _cairo_mesh_pattern_equal() when cairo_mesh_patch_t structs are different
+
+ Marc-André Lureau (1):
+ build-sys: do not try to build util/sphinx on Windows
+
+ Marek Kasik (1):
+ font: Generate PDFs with correct font names
+
+ Martin Robinson (1):
+ gl: Extend oversize check to cairo_gl_surface_create_for_texture
+
+ Ravi Nanjundappa (22):
+ perf: Refactor some macros to cairo-perf.h
+ test and util: maintain consistency in the usage of ARRAY_LENGTH macro
+ boilerplate: Maintain consistency in the usage of switch cases
+ glx: Use GLX_NONE in place of None
+ test : Maintain consistency in the usage of xcalloc
+ vg: Use EGL_NONE and GLX_NONE in place of None
+ src : Fix warn_unused_result warnings from gcc
+ xcb: make use of _cairo_surface_is_xcb to check for surface type
+ skia: update the source to build with the latest skia
+ .gitignore: Ignore the generated profile data files from callgrind tool in test/
+ skia : Add Debug support for skia backend
+ test : build fix when --enable-pdf=no
+ test: Selective execution of Cairo tests based on FORMAT option
+ test: improve selective execution of Cairo tests based on FORMAT option
+ README : Update README file related to usage of FORMAT make variable
+ configure.ac: configuration check to enable either gl or glesv2, not both at the same time
+ src: Fix memory issue reported by cppcheck static analysis tool
+ test: Fix null pointer issue reported by cppcheck static analysis tool
+ qt: Suppress warnings in qt backend build
+ test: Add test oversized egl surfaces
+ src: check the surface backend for NULL
+ test: Add test for egl-surface-source
+
+ Rodrigo Rivas Costa (1):
+ win32 print: fix cache_frozen assertions
+
+ Ryan Lortie (1):
+ cairo-version: fix docs build
+
+ Sylvestre Ledru (3):
+ Remove some useless declarations found by scan-build, the LLVM/clang static analyzer
+ Remove some potential double free
+ Fix some memory leaks found by scan-build, the LLVM/Clang static analyzer
+
+ Søren Sandmann Pedersen (1):
+ _cairo_color_double_to_short(): Use standard rounding algorithm
+
+ Uli Schlachter (23):
+ recording: Fix unitialized variable 'free_me'
+ recording: Correctly determine alpha of all surfaces
+ cairo-gobject: Require at least glib 2.14
+ check-doc-syntax: Don't hardcode path to awk
+ image: Handle PIXMAN_a8r8g8b8_sRGB in switch
+ test/multi-page: Fix use-after-free
+ xcb: Remove useless error handling
+ fill_reduces_to_source(): Handle failure of color_to_pixel()
+ Remove XFAIL_TESTS from Makefile.am
+ README: Don't mention XFAIL_TESTS anymore
+ Revert "[xlib] Fast-path the likely case of retrieving a known xrender_format"
+ cairo-xlib: Fix out of bounds array access in format cache
+ Correct usage of CAIRO_STACK_ARRAY_LENGTH
+ cairo svg: Use \n instead of /n in bitmap fonts
+ clip: Fix handling of special all-clipped cairo_clip_t
+ Fix warnings from check-doc-syntax.sh
+ mask compositor: Set a check_composite method
+ mesh-rasterize: Fix number of iterations
+ pthread-same-source: Add ref image generation
+ pthread-same-source: Refresh reference images
+ Revert "image: Use convolution filters for sample reconstruction when downscaling"
+ Remove LTO support
+ xcb: Correctly check for image surface for inplace upload
+
+ egag (1):
+ Fixes stroke-clipped, i.c. of a dashed stroke
+
+ jimmyfrasche (2):
+ Pattern document clarification
+ Add more info to cairo_surface_set_mime_data docs.
+
+
+
+ --
+ Bryce Harrington
+ Senior Open Source Developer - bryce at osg.samsung.com
+ Open Source Group - Samsung Research America
+
+
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