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Diffstat (limited to 'NEWS')
| -rw-r--r--[-rwxr-xr-x] | NEWS | 340 |
1 files changed, 338 insertions, 2 deletions
@@ -1,3 +1,339 @@ +Release 1.14.2 (2014-03-09 Bryce Harrington <bryce@osg.samsung.com>) +==================================================================== +This release provides collected bug fixes, along with one feature +enhancement for the xcb backend, and a small performance improvement for +fonts. + +The running theme of the bug fixes is platform-specific issues, both +build and run-time. Platforms with fixes include Sparc, AIX, Windows +(mingw), and Windows (MSVC8). Memory leaks, valgrind issues, and PDF +issues round out our list. + +It's come to light that changes in cairo 1.14 resulted in breakage on +MacOS X 10.4. We've not yet determined whether to fix up the support, +or excise the 10.4-specific code and support only OS X 10.5 or newer. +Meantime, we'll only advertise cairo as working on OS X 10.5. + +Features +-------- + * Improve xcb's handling of per-screen subpixel ordering. If no + Xft.rgba property is specified, default to the screen's subpixel + order. + +API Changes +----------- +None + +Dependency Changes +------------------ +None + +Performance Optimizations +------------------------- + * Improve performance of cpu_to_be32 and be32_to_cpu, making truetype + subsetting of large fonts run about 15% faster. + +Bug Fixes +--------- + * Fix unaligned access on sparc with the compact font format (CFF). + Unlike truetype, all data in CFF is not aligned. + (Debian bug #712836) + * Fix unaligned access on sparc with tor-scan-converter's memory pool. + * Fix crash when loading a PDF with a transformed image. + (fdo bug #85151) + * Fix regression on mingw for bigendian test due to removal of file + extension for executables. + (fdo bug #85120) + * Fix handling of backslash in PDF interpreter + (fdo bug #85662) + * Fix crash in xlib and xcb renderers when swapping a 0-sized glyph + * Fix bug with RTL text in PDF operators + (fdo bug #86461) + * Fix compilation 'cairo-path-stroke-traps.c' with MSVC8 + (fdo bug #84908) + * Fix crash in _fill_xrgb32_lerp_opaque_spans when a span length is + negative. + * Fix valgrind error by releasing pattern created by + cairo_pattern_create_rgb(). + * Fix valgrind errors when running cairo-test-suite. + * Fix memory leak in recording surface replays + (fdo bug #87898) + * Fix destruction of fonts in api-special-cases test. + (fdo bug #87567) + * Fix duplicated surface push on similar-image, preventing trivial GTK3 + program traces from being replayable, with an error message about + invalid values for the size of the input. + (fdo bug #73580) + * Fix crash when win32 surface's image size does not cover the entire + surface. + (fdo bug #53121) + * Fix crash due to obsolete CGFontGetGlyphPath call + (fdo bug #84324) + * Fix several build issues on AIX + (fdo bugs #89338, #89340, #89356, #89354) + * Fix various documentation warnings and errors + +Release 1.14.0 (2014-10-13 Bryce Harrington <bryce@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 รถ) 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. + + +Release 1.12.16 (2013-08-21 Chris Wilson <chris@chris-wilson.co.uk>) +=================================================================== +Thanks to everybody who reported a bug and helped us develop a fix, +we have amassed quite a few bug fixes. There are still more outstanding +bugs that seek attention and a little bit of TLC, but this release has +been delayed long enough... + +Bug fixes +--------- + + Set the correct orientation for simple boxes with a negative scale + factor. + + Fix the creation of the shading dictionary in PDF. + + Fix a crash in PDF when incorporating an image with CAIRO_EXTEND_PAD. + https://bugs.freedesktop.org/show_bug.cgi?id=61451 + + Avoid upscaling bitmap fonts if possible. + + Fix an assertion failure within the mempool allocator for shared memory. + + Fix allocation size for CFF subsets. + + Export cairo_matrix_t for GObject bindings. + + Fix a double free in the Quartz backend. + https://bugs.freedesktop.org/show_bug.cgi?id=62885 + + Fix origin of GDI StretchBlits for the Windows backend + https://bugs.freedesktop.org/show_bug.cgi?id=61876 + + Fix error propagation for requests to create a similar surface with + negative size. + https://bugs.freedesktop.org/show_bug.cgi?id=63196 + + Fix complex clipping of trapezoids with regions + https://bugzilla.gnome.org/show_bug.cgi?id=697357 + + Stop leaking the image data when loading PNGs + + Fix unbounded operations with a clip mask through the span compositor + https://bugs.freedesktop.org/show_bug.cgi?id=61592 + + Add missing checks before rendering to a finished surface - so we return + an error rather than hit an assert. + https://bugs.freedesktop.org/show_bug.cgi?id=68014 + + Prevent an assertion failure when creating similar GL surfaces larger + than supported by hardware. + + Prevent a double free of a similar image under Windows. + https://bugs.freedesktop.org/show_bug.cgi?id=63787 + + Release 1.12.14 (2013-02-10 Chris Wilson <chris@chris-wilson.co.uk>) =================================================================== In the last week we had a few more bugs reported and promptly resolved. @@ -350,8 +686,8 @@ cases (such as stroking around a rectangle) and by reducing the number of edges generated by the general stroker. As part of the focus on performance, Cairo 1.12 introduces some -antialias hints (NONE,FAST, GOOD, BEST) that are interpolated by the -raserisers to fine tune their performance versus quality. Cairo 1.12 +antialias hints (NONE, FAST, GOOD, BEST) that are interpolated by the +rasterisers to fine tune their performance versus quality. Cairo 1.12 also introduces a new observation architecture, cairo_surface_observer_t, which can be used to analyse the amount of time consumed by drawing commands and help identify inefficiencies in |