86 lines
2.3 KiB
Lua
86 lines
2.3 KiB
Lua
--
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-- Copyright (c) 2015 Pedro Souza <pedrosouza@freebsd.org>
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions
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-- are met:
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-- 1. Redistributions of source code must retain the above copyright
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-- notice, this list of conditions and the following disclaimer.
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-- 2. Redistributions in binary form must reproduce the above copyright
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-- notice, this list of conditions and the following disclaimer in the
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-- documentation and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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-- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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-- ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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-- OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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-- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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-- LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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-- OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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-- SUCH DAMAGE.
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--
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-- $FreeBSD$
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--
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local screen = {};
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local color = require("color");
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local core = require("core");
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-- XXX TODO: This should be fixed in the interpreter to not print decimals
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function intstring(num)
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local str = tostring(num);
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local decimal = str:find("%.");
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if (decimal) then
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return str:sub(1, decimal - 1);
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end
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return str;
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end
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function screen.clear()
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if (core.isSerialBoot()) then
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return;
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end
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loader.printc("\027[H\027[J");
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end
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function screen.setcursor(x, y)
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if (core.isSerialBoot()) then
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return;
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end
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loader.printc("\027["..intstring(y)..";"..intstring(x).."H");
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end
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function screen.setforeground(c)
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if (color.disabled) then
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return c;
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end
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loader.printc("\027[3"..c.."m");
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end
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function screen.setbackground(c)
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if (color.disabled) then
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return c;
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end
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loader.printc("\027[4"..c.."m");
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end
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function screen.defcolor()
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loader.printc(color.default());
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end
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function screen.defcursor()
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if (core.isSerialBoot()) then
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return;
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end
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loader.printc("\027[25;0H");
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end
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return screen;
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