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https://gitlab.freedesktop.org/cairo/cairo.git
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53444c286e
Store the antialiasing mode in the gstate and pass it to the backend for trapezoid rendering and for clipping. Pass the antialiasing parameter down to the backend where appropriate. Pass the antialiasing parameter down to the backend where appropriate. Add support for A1 format trapezoid rendering, and remove the _create_mask_image function, creating a temporary image from memory we allocate and clear. Support A1 masks to disable antialiasing using the RENDER extension when requested. Support A1 masks to disable antialiasing using the RENDER extension when requested. Blindly pass through the antialising parameter. Add the antialiasing parameter but don't support it. Add a test case and a reference image from the latest libpixman. Add the new antialiasing disabling API to the docs. Update progress on a parameter to disable antialiasing. reviewed by: cworth, otaylor
86 lines
2.9 KiB
Text
86 lines
2.9 KiB
Text
Changes that are expected to impact the public API
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==================================================
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Patch submitted to mailing list?
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/ Documentation included in patch?
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|/ Review of patch completed?
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||/ Test case included?
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|||/ Committed.
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||||/
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Backwards compatible (API additions only)
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-----------------------------------------
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cairo_begin_group, cairo_end_group, cairo_get_group
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PDR C cairo_surface_mark_dirty (see below for details)
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PDRTC Add support for non-antialiased rendering + API
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Add CAIRO_FILL_RULE_INVERSE_WINDING and CAIRO_FILL_RULE_INVERSE_EVEN_ODD
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Add cairo_text_glyphs (see below for details)
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Add support for programmatic patterns, (ie. arbitrary gradients)
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P Add cairo_arc_to.
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Add support for custom caps (see below for details)
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Add support for getting at image data from image surface
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Add CAIRO_STATUS_DESTROYED
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Add cairo_finish
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Backwards incompatible (API deletions or changes)
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-------------------------------------------------
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PDR C cairo_surface_finish, cairo_surface_flush
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PDR C A hidden offset for the xlib backend
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PDR C Consistent error handling for all objects
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PDRTC Split cairo_format_t (see below for details)
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P---C Remove cairo_status_string in favor of cairo_status_to_string
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Details on some of the above changes
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------------------------------------
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* cairo_text_glyphs:
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It would function as a sort of bridge between the toy and the
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real text APIs:
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> void
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> cairo_text_glyphs (cairo_t *cr, const unsigned char *utf8,
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> cairo_glyph_t *glyphs, int *num_glyphs);
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>
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> with num_glyphs as an input-output parameter. The behavior of this
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> function would be such that calling:
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>
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> cairo_text_glyphs (cr, string, glyphs, &num_glyphs);
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> cairo_show_glyphs (cr, glyphs, num_glyphs);
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>
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> would be equivalent too:
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>
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> cairo_show_text (cr, string);
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>
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> as long as the original size of glyphs/num_glyphs was large
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> enough.
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* support for custom caps:
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It would be nice if the user had a mechanism to reliably draw custom
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caps. One approach here would be to provide the coordinates of the
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butt cap faces so that the user can append seamless caps to the
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current path. We may also need to provide the coordinates of the
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faces of every dash as well.
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Changes that do not affect the public API
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=========================================
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* Fix clipping to work for all operators. The equation we have come up
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with is:
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((src Op dest) In clip) Add (dest Out clip)
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* Change stroke code to go through one giant polygon. This will fix
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problems with stroking self-intersecting paths.
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* Fix the intersection problem, (see reference to Hobby's paper
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mentioned in cairo_traps.c).
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* Implement dashing for cairo_curve_to.
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* Stroking closed, degenerate paths should still draw caps. Round
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caps are easy; square should probably draw an axis-aligned square.
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* Should add geometry pruning as appropriate.
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* Verification, profiling, optimization.
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centi_unfinished.svg may provide a good test case.
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