ncplane_as_rgba: genericize across blitters
ncplane_as_rgba() previously was implemented explicitly
in terms of NCBLIT_2x1. it now uses the `egcs` field of the
`blitset`. this supports NCBLIT_2x2 and NCBLIT_3x2 in
ncplane_rgba(). Closes#1490.
- remove `Nc` & `NcD` wrappers, to move them to notcurses-rs library.
- update the summary header format for Notcurses and NcDirect
- update docs and examples
* Paint sprixels in order, bottom-to-top
We don't want to have to track sprixel order whenever someone
moves an ncplane, so just keep a list growing backwards as we
pass top-to-bottom in notcurses_render_internal(). Each time
we hit a sprixel plane, splice it out of the sprixel list, and
add it to the front of our temporary list. When we hit the
bottom, stick this temporary list on the end of our existing
list (any such planes are to be deleted, which comes before
drawing). Closes#1575.
* reorder collected sprixellist; solves kitty but breaks sixel =/ #1575
* remove debugging cruft
* [rust] fix up mergedown mutability
# List of architectures per type of bug
> `__va_list_tag` not found
> (differentiate between x86_64|s390x and the rest)
i686:
aarch64:
armv7l: (a similar name exists in the module: `__va_list`)
ppc64le:
- [x] bindings.rs:24
> (expected u32, found u64)
> (differentiate between i686|armv7l and the rest)
i686:
armv7l:
- [x] src/notcurses/methods.rs:531:75 `notcurses_render_to_buffer`
- [x] src/plane/reimplemented.rs:167:55 `ncplane_putnstr_yx`
> expected [0;32]
> (differentiate between i686|armv7l and the rest)
i686:
armv7l:
- [x] src/signal.rs:15:23 `__val: [0; 16]`
> (expected `u8`, found `i8`)
> (differentiate between x86_64|i686 and the rest)
aarch64:
armv7l:
ppc64le:
s390x:
- [x] src/direct/methods.rs:663:60 `ncdirect_hline_interp`
- [x] src/direct/methods.rs:685:60 `ncdirect_vline_interp`
- [x] src/notcurses/methods.rs:531:65 `notcurses_render_to_buffer`
- [x] src/plane/methods.rs:1901:17
- [x] src/plane/reimplemented.rs:697:13
- add new Notcurses methods: `canhalfblock()` and `canquadrant()`.
- add doc links to NCBLIT_* flags from the capabilities methods.
- update the full-capabilites example to include `canhalfblock`, `canquadrant`,
`canchangecolor` and `canfade` functions.
- rustfmt
- move blitter type, NCBLIT_* constants and NcPixelGeometry from the plane module to the visual module.
- add information about blitter graceful degradation the NcBlitter type.
- add cross linking from/to the NCVISUAL_OPTION_NODEGRADE flag.
- update the full-capabilites example to include braille.
