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.

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

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loader/menu: tweak for added line

I added a line to the menu, but didn't adjust so things were a
line off. Make the necessary adjustments.

Fixes: 7cb65be96d47
Sponsored by: Netflix
MFC After: 3 days

loader: Move drawer.lua over to gfx table.

Drawer.lua is the only bit of lua code in the base that uses any of the
functons moved from the loader table to the gfx table. Move the main
code to using

loader: Move drawer.lua over to gfx table.

Drawer.lua is the only bit of lua code in the base that uses any of the
functons moved from the loader table to the gfx table. Move the main
code to using the gfx dispatch. Add compat code for running on old
loaders that creates the newer-style gfx table with the term_* functions
we call in it populated. This will even work on the super old versions
of the loader that don't have them (we'll still skip using them).

Sponsored by: Netflix
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D43908

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Remove $FreeBSD$: two-line lua tag

Remove /^--\n--\s*\$FreeBSD\$.*$\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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lualoader: allow brands to specify a shift

Some brands will want to specify a shift to make sure they're properly
centered; let it happen.

lualoader: remove shadowed local from graphics:drawitem()

for loop vars are local already and distinct from this earlier
declaration; remove it.

loader: do not output empty menu title

As we output spaces around the menu title, we should also check,
if the title is actually empty string.

PR: 255299
Submitted by: Jose Luis Duran
Reported by:

loader: do not output empty menu title

As we output spaces around the menu title, we should also check,
if the title is actually empty string.

PR: 255299
Submitted by: Jose Luis Duran
Reported by: Jose Luis Duran
MFC after: 1 week

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loader: insert spaces around menu title

Small visual nit, make menu title more clean

MFC after: 3 days

loader: remove BORDER_PIXELS

BORDER_PIXELS is left over from picking up the source from illumos
port. Since FreeBSD VT does not use border in terminal size
calculation, there is no reason why should

loader: remove BORDER_PIXELS

BORDER_PIXELS is left over from picking up the source from illumos
port. Since FreeBSD VT does not use border in terminal size
calculation, there is no reason why should loader use it.

MFC after: 1 week

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lualoader: use floor division to get correct type

This fixes the positioning of the "Welcome to FreeBSD" heading, which was
misplaced after the recent update to Lua 5.4. The issue was previously
mas

lualoader: use floor division to get correct type

This fixes the positioning of the "Welcome to FreeBSD" heading, which was
misplaced after the recent update to Lua 5.4. The issue was previously
masked by a compatibility knob in Lua 5.3 that would cause float-tagged
numbers to render faithfully without the decimal component. Lua 5.4 dropped
that and ensures that it always prints a decimal component, even if it has
to append a ".0" to the value.

Standard division produces a "float", floor division (//) can be used to
guarantee an integer. Floating point operations have been completely ripped
out of the liblua compiled for the bootloader, so this is a nop. This is
decidedly better than trying to hack out the float tag entirely.

Reported-by: mjg, probably others
MFC-after: 3 days

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loader: implement framebuffer console

Draw console on efi.
Add vbe framebuffer for BIOS loader (vbe off, vbe on, vbe list,
vbe set xxx).
autoload font (/boot/fonts) based on resolution and font size

loader: implement framebuffer console

Draw console on efi.
Add vbe framebuffer for BIOS loader (vbe off, vbe on, vbe list,
vbe set xxx).
autoload font (/boot/fonts) based on resolution and font size.
Add command loadfont (set font by file) and
variable screen.font (set font by size). Pass loaded font to kernel.

Export variables:
screen.height
screen.width
screen.depth

Add gfx primitives to draw the screen and put png image on the screen.
Rework menu draw to iterate list of consoles to enamble device specific
output.

Probably something else I forgot...

Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D27420

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lualoader: improve the design of the brand-/logo- mechanism

In the previous world order, any brand/logo was forced to pull in the
drawer and call drawer.add{Brand,Logo} with the name their brand/log

lualoader: improve the design of the brand-/logo- mechanism

In the previous world order, any brand/logo was forced to pull in the
drawer and call drawer.add{Brand,Logo} with the name their brand/logo is
taking and a table describing it.

In the new world order, these files just need to return a table that maps
out graphics types to a table of the exact same format as what was
previously being passed back into the drawer. The appeal here is not needing
to grab a reference back to the drawer module and having a cleaner
data-driven looking format for these. The format has been renamed to 'gfx-*'
prefixes and each one can provide a logo and a brand.

drawer.addBrand/drawer.addLogo will remain in place until FreeBSD 13, as
there's no overhead to them and it's not yet worth the break in
compatibility with any pre-existing brands and logos.

Reviewed by: freqlabs
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D24966

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lualoader: improve drawer error handling

At least one user has landed in a scenario where logo files appear to be
misnamed, and we failed to find them. Our fallback for missing logodefs is
orb/orbbw

lualoader: improve drawer error handling

At least one user has landed in a scenario where logo files appear to be
misnamed, and we failed to find them. Our fallback for missing logodefs is
orb/orbbw, based on the color status. In a scenario where we can't locate
the logos, though, this is not ideal. Add in one more layer of fallback
to properly just don't draw any logo if the fan has been jam packed with
foreign material.

PR: 246046
MFC after: 3 days

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Merge ^/head r352105 through r352307.

lualoader: Revert to ASCII menu frame for serial console

The box drawing characters we use aren't necessarily safe with a serial
console; for instance, in the report by npn@, these were causing his

lualoader: Revert to ASCII menu frame for serial console

The box drawing characters we use aren't necessarily safe with a serial
console; for instance, in the report by npn@, these were causing his xterm
to send back a sequence that lua picked up as input and halted the boot.
This is less than ideal.

Fallback to ASCII frames for console with 'comconsole' in it. This is a
partial revert r338108 by imp@ -- instead of removing the menu entirely and
disabling color/cursor sequences, just reverting the default frame to ASCII
is enough to not break in this setup.

Reported by: npn
Triaged and recommended by: tsoome

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Merge ^/head r351732 through r352104.

loader: use teken teminal emulator for x86 and uefi

Replace mini cons25 emulator with teken, this does enable us proper console
terminal for loader and will make it possible to implement different
b

loader: use teken teminal emulator for x86 and uefi

Replace mini cons25 emulator with teken, this does enable us proper console
terminal for loader and will make it possible to implement different
back end callbacks to draw to screen.

At this time we still only "draw" in text mode.

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Merge ^/head r338026 through r338297, and resolve conflicts.

lualoader: Add drawer-exported variables for default logodefs

Uncovered while writing the documentation from this, we previously
explicitly fell back to orb or orbbw if an invalid or incompatible lo

lualoader: Add drawer-exported variables for default logodefs

Uncovered while writing the documentation from this, we previously
explicitly fell back to orb or orbbw if an invalid or incompatible logodef
was selected -- in contrast to branddefs, which have an exported variable
that one can whip up a quick local.lua to override in a safe manner that
works regardless of whether or not loader.conf(5) successfully loads.

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lualoader: Hide the rest of the private interfaces

These are less controversial than the others, thus done in a separate
commit. These are all used internally and ways to override are provided via
s

lualoader: Hide the rest of the private interfaces

These are less controversial than the others, thus done in a separate
commit. These are all used internally and ways to override are provided via
soon-to-be-documented API or loader.conf(5) variables.

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lualoader: Hide most of the internal drawing functions

Ideally, all of the functionality to revamp the loader screen has associated
APIs that are flexible enough that third-party scripts wouldn't ne

lualoader: Hide most of the internal drawing functions

Ideally, all of the functionality to revamp the loader screen has associated
APIs that are flexible enough that third-party scripts wouldn't need to
override these.

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lualoader: Stop exporting drawer.draw

drawer.draw is the back-end for drawlogo and drawbrand and should not be
used directly.

lualoader: Allow brand-*.lua for adding new brands

dteske@, I believe, had originally pointed out that lualoader failed to
allow logo-*.lua for new logos to be added. When correcting this mistake, I

lualoader: Allow brand-*.lua for adding new brands

dteske@, I believe, had originally pointed out that lualoader failed to
allow logo-*.lua for new logos to be added. When correcting this mistake, I
failed to do the same for brands.

Correct the sub-mistake: creating new brands is almost identical to creating
new logos, except one must use `drawer.addBrand` and 'graphic' is the only
valid key for a branddef at the moment.

While here, I've added `drawer.default_brand` to be set to name of brand to
be used (e.g. 'fbsd', project default).

Eventually this whole goolash will be documented.

Reported by: kmoore, iXsystems

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lualoader: Don't try to lookup a nil logo