the media code that makes up non-core libnotcurses called
into lookup_rgba(). instead, have them use the new
funtion ncvisual_blitter_geom() to access the actual blitter
being used. we can then hide lookup_blitset(), which ought
never have been exported. closes#1519.
Require a known-good TERM heuristic match to enable
quadrants (NCBLIT_2x2); they otherwise decay to halves
(NCBLIT_2x1). The only terminal that supports quadrants
but does not support sextants is the Linux console, where
we program quadrants directly into the font table,
like a beast. Closes#1517, and #1298 if we're lucky.
deprecate ncvisual_geom() in favor of new ncvisual_blitter_geom(), which allows caller to get the blitter used. replace the checks and calculations in ncvisual_render() with a call to ncvisual_blitter_geom(), unifying the two paths (and eliminating several bugs in the unloved ncvisual_geom()).
if we go into ncvisual_render() looking to render a number
of rows not evenly divisible by the scaling factor, we need
to get an extra row (duh). correct ncvisual_render_cell() to
reflect this. the blitters already know to fill this line in
with transparency wherever the image is not defined. fix up
rotation unit tests to reflect this. closes#1513.
- improve NcVisual.from_rgba documentation.
- fix Notcurses.term_dim_yx documentation.
- new example `poc-planebase` to help find the bug.
- improve full-capabilities example a little.
- rename and refactor NcPlane method rgba() to as_rgba().
- add example `issue-rgba` that shows a problem when the plane has text.
- refactor `error_ref` & `error_ref_mut` macros to allow custom return values
- refactor Notcurses.palette_size() to return an NcResult.
- refactor & rename example direct-text.rs to direct-capabilities.rs.
- new example full-capabilities.rs
- update script `function_summary.sh`
- new script `compare_outputs.sh` to compile the differences between versions
- create changes files that summarizes diffs between versions
- remove outdated ouput folders
