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H A Ddrawer.luadiff c2ba66d4d01f23303352bfe3cbd50ff5d9a05947 Sat Nov 02 23:02:44 CET 2024 Warner Losh <imp@FreeBSD.org> loader: Fix boot menu on BIOS

Only the gfx-enabled boot loader supports unicode. Otherwise, we have to
use the old cons25 / ibmpc upper code page drawing characters. Check to
see if we have the gfx.term_drawbox function. If we do, we support the
unicode drawing characters. If we don't, then we have an older loader
that doesn't support it *OR* we have the reduced function, text-only
boot loader. In either of those cases, we need to use the old graphics
characters. Abstract all those details into core.hasUnicode function.

PR: 282465
MFC After: 2 day
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D47403
H A Dcore.luadiff c2ba66d4d01f23303352bfe3cbd50ff5d9a05947 Sat Nov 02 23:02:44 CET 2024 Warner Losh <imp@FreeBSD.org> loader: Fix boot menu on BIOS

Only the gfx-enabled boot loader supports unicode. Otherwise, we have to
use the old cons25 / ibmpc upper code page drawing characters. Check to
see if we have the gfx.term_drawbox function. If we do, we support the
unicode drawing characters. If we don't, then we have an older loader
that doesn't support it *OR* we have the reduced function, text-only
boot loader. In either of those cases, we need to use the old graphics
characters. Abstract all those details into core.hasUnicode function.

PR: 282465
MFC After: 2 day
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D47403