mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
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751e059f5c
New helper function to help create an image surface from a PNG file, while taking the srcdir environment variable into consideration. Rename the pattern creating helper function to match. Use new cairo_test_create_surface_from_png so that non-srcdir builds work. Track change in cairo_test_create_pattern_from_png.
128 lines
4 KiB
Text
128 lines
4 KiB
Text
cairo 0.5.2
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===========
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✓ Get tor to sign off that the win32 stuff is up to snuff
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✓ glyph path patch reviewed and committed
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✓ Fix the BadMatch error introduced between 0.5.0 and 0.5.1:
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https://bugs.freedesktop.org/show_bug.cgi?id=3604
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(It turns out this was just exposing an old bug in libpixman
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0.1.4 which is already fixed in libpixman 0.1.5)
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Add a workaround for Render's overlapping source/dest bug
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✓ Use XCopyArea when possible (integer translation)
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Otherwise make a copy of the source
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Fix the cache lock deadlocking problems.
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Difficulty: Hard
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Status: The cache code was ugly enough that I ended up doing a
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major rewrite rather than just reviewing the
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locking. The upside is that the rewrite should also
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add the missing metrics caches which will fix some
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performance problems with text measurement. Almost
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done now.
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cairo 1.0 release requirements
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==============================
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Implementation work
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-------------------
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I1. Fix clipping to be sane
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Dificulty: moderate
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Status: cworth has started looking at this
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I2. Real PostScript/PDF fallbacks (cairo_meta_surface_t)
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Difficulty: hard
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Status: krh has committed cairo_meta_surface_t and a preliminary
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version of cairo_ps_surface_t that uses it.
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I3. Add support for sub-pixel (ARGB) rendering of text.
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Status: keithp walked cworth through this. Patch sent to the
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list is almost complete.
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API Issues (more detail in TODO file)
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-------------------------------------
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✓A1. Add cairo_paint
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Difficulty: moderate or moderate to minor
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Dependencies: much easier after [I1]. needs some cleanups from [A4]
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Status: Done
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✓A2. Add cairo_mask
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Difficulty: moderate
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Status: Done
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A3. Add cairo_begin/end/get_group
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Difficulty: easy to hard (depending on how sophisticated an
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implementation is acceptable, and whether the
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cairo_meta_surface_t mentioned in [I2] is done)
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Status: cworth has a posted a preliminary patch, and keithp,
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krh, and otaylor answered all the tough questions it
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raised. There's not much work left to finish this one.
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✓A4. Make set_source consistent
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Difficulty: easy
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Dependencies: needs [A2,A3] to avoid losing functionality,
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(but we may just live with that as we've now got
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a circular dependency)
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Status: Done.
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✓A5. Add cairo_clip/fill/stroke_preserve
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Difficulty: easy
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Status: Done.
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✓A6. Just eliminate a bunch of functions:
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✓ cairo_set_target_*
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✓ cairo_copy
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✓ cairo_surface_set_repeat/matrix/filter
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✓ cairo_show_surface
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Difficulty: trivial
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Dependencies: eliminating cairo_show_surface depends on [A1]
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Status: Done.
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A7. cairo_surface_mark_dirty
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Difficulty: trivial to add API, moderate to actually optimize
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based on it
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Status: cworth has sent API proposal to list
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✓A8. cairo_content_t:
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Difficulty: moderate. It's just going through and examining
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each use of cairo_format_t, but there are a lot
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of them.
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Status: Done.
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A9. consistent error handling for all objects
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Difficulty: Easy to implement to get the API right. Hard to test.
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Status: Done for cairo_t, cairo_path_t, and cairo_pattern_t.
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Still need to do cairo_font_face_t,
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cairo_scaled_font_t, and cairo_surface_t.
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A10. cairo_font_options_t
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Difficulty: Moderate
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Status: Owen has done all the hard thinking, and we've got
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consensus on the API now. Owen's working on a patch.
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A11. cairo_xlib_surface_create needs to be screen-aware
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Difficulty: Easy
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Status: Keith has cooked up a patch with an APi that should be
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sufficient. It still needs testing on multi-screen X
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server.
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A12. cairo_xlib_surface_set_drawable
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Difficulty: Easy
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Status: Keith has a patch sitting ready on the list.
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Performance work
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----------------
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✓P1. Make pixel-aligned rectangle compositing fast
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Difficulty: moderate to easy
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Status: Done.
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P2. Generate better trapezoids to go easier on the rasterizer
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Difficulty: moderate to hard
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Status: cworth drafted a plan to the list
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P3. Glyph measurement needs to be sped up.
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Status: Now planned as part of "cache lock deadlock" above.
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