freebsd-dev/stand/lua/color.lua
Toomas Soome 3630506b9d 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
2021-01-02 21:41:36 +02:00

123 lines
3.1 KiB
Lua

--
-- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
--
-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
-- 1. Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
-- 2. Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-- SUCH DAMAGE.
--
-- $FreeBSD$
--
local core = require("core")
local hook = require("hook")
local color = {}
local function recalcDisabled()
color.disabled = not color.isEnabled()
end
-- Module exports
color.BLACK = 0
color.RED = 1
color.GREEN = 2
color.YELLOW = 3
color.BLUE = 4
color.MAGENTA = 5
color.CYAN = 6
color.WHITE = 7
color.DEFAULT = 9
color.BRIGHT = 1
color.DIM = 2
function color.isEnabled()
local c = loader.getenv("loader_color")
if c ~= nil then
return c:lower() ~= "no" and c ~= "0"
end
return true
end
function color.escapefg(color_value)
if color.disabled then
return ''
end
return core.KEYSTR_CSI .. "3" .. color_value .. "m"
end
function color.resetfg()
if color.disabled then
return ''
end
return color.escapefg(color.DEFAULT)
end
function color.escapebg(color_value)
if color.disabled then
return ''
end
return core.KEYSTR_CSI .. "4" .. color_value .. "m"
end
function color.resetbg()
if color.disabled then
return ''
end
return color.escapebg(color.DEFAULT)
end
function color.escape(fg_color, bg_color, attribute)
if color.disabled then
return ""
end
if attribute == nil then
attribute = ""
else
attribute = attribute .. ";"
end
return core.KEYSTR_CSI .. attribute ..
"3" .. fg_color .. ";4" .. bg_color .. "m"
end
function color.default()
if color.disabled then
return ""
end
return color.escape(color.DEFAULT, color.DEFAULT)
end
function color.highlight(str)
if color.disabled then
return str
end
-- We need to reset attributes as well as color scheme here, just in
-- case the terminal defaults don't match what we're expecting.
return core.KEYSTR_CSI .. "1m" .. str .. core.KEYSTR_CSI .. "22m"
end
recalcDisabled()
hook.register("config.loaded", recalcDisabled)
return color