Lua-based operating system, based on LuPI2, with a focus on PowerPC based Macintosh machines
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local fbgpu = {}
local mapping = {}
for i=0,15 do
mapping[i] = (i * 15) << 16 | (i * 15) << 8 | (i * 15)
end
for i=0,239 do
local b = math.floor((i % 5) * 255 / 4.0)
local g = math.floor((math.floor(i / 5.0) % 8) * 255 / 7.0)
local r = math.floor((math.floor(i / 40.0) % 6) * 255 / 5.0)
mapping[16+i] = r << 16 | g << 8 | b
end
--[[local nw = io.write
io.write = function(...)
nw(...)
io.flush()
native.sleep(20000)
end]]--
local fb = framebuffer
local write = io.write
local flush = io.flush
for k,v in pairs(mapping) do
fb.setPalette(k, v)
end
local background = 0
local foreground = 0
local usub
function fbgpu.start()
usub = modules.sandbox.unicode.sub
local gpu = {}
function gpu.bind() return false, "This is static bound gpu" end
function gpu.getScreen() return "n/a" end
function gpu.setBackground(color, isPaletteIndex)
checkArg(1, color, "number")
checkArg(2, isPaletteIndex, "boolean", "nil")
if isPaletteIndex and color >= 0 and color < 256 then
background = color
return mapping[color]
end
local old = background
background = fb.getNearest(color)
return mapping[old]
end
function gpu.setForeground(color, isPaletteIndex)
checkArg(1, color, "number")
checkArg(2, isPaletteIndex, "boolean", "nil")
if isPaletteIndex and color >= 0 and color < 256 then
foreground = color
return mapping[color]
end
local old = foreground
foreground = fb.getNearest(color)
return mapping[old]
end
function gpu.getBackground()
return mapping[background], false
end
function gpu.getForeground()
return mapping[foreground], false
end
function gpu.getPaletteColor()
return nil
end
function gpu.setPaletteColor(index, value)
checkArg(1, index, "number")
checkArg(2, value, "number")
fb.setPalette(index, value)
return value
end
function gpu.maxDepth()
return 8
end
function gpu.setDepth()
return false
end
function gpu.getDepth()
return 8
end
function gpu.maxResolution()
return fb.getWidth(), fb.getHeight()
end
function gpu.getResolution()
return fb.getWidth(), fb.getHeight()
end
function gpu.getViewport()
return fb.getWidth(), fb.getHeight()
end
function gpu.setViewport(w, h)
checkArg(1, w, "number")
checkArg(2, h, "number")
return false, "Viewport not supported for this gpu"
end
function gpu.setResolution(w, h)
checkArg(1, w, "number")
checkArg(2, h, "number")
return false, "Non resizeable gpu"
end
function gpu.get(x, y)
checkArg(1, x, "number")
checkArg(2, y, "number")
return utf8.char(fb.get(x-1, y-1)), mapping[fb.getfg(x-1, y-1)], mapping[fb.getbg(x-1, y-1)]
end
function gpu.set(x, y, value, vertical)
checkArg(1, x, "number")
checkArg(2, y, "number")
checkArg(3, value, "string")
checkArg(4, vertical, "boolean", "nil")
x = math.floor(x)
y = math.floor(y)
if not vertical then
local i = 0
value:gsub("([%z\1-\127\194-\244][\128-\191]*)", function(c)
fb.put(x+i-1, y-1, background, foreground, utf8.codepoint(c))
i = i+1
end)
else
local i = 0
value:gsub("([%z\1-\127\194-\244][\128-\191]*)", function(c)
fb.put(x-1, y+i-1, background, foreground, utf8.codepoint(c))
i = i+1
end)
end
flush()
return true
end
function gpu.copy(x, y, w, h, tx, ty) --TODO: Check(check X multiple times)
checkArg(1, x, "number")
checkArg(2, y, "number")
checkArg(3, w, "number")
checkArg(4, h, "number")
checkArg(5, tx, "number")
checkArg(6, ty, "number")
fb.copy(x-1, y-1, w, h, tx, ty);
return true
end
function gpu.fill(x, y, w, h, ch)
checkArg(1, x, "number")
checkArg(2, y, "number")
checkArg(3, w, "number")
checkArg(4, h, "number")
checkArg(5, ch, "string")
ch = usub(ch, 1, 1)
fb.fill(x-1, y-1, x+w-2, y+h-2, background, foreground, utf8.codepoint(ch))
return true
end
local w, h = gpu.getResolution()
gpu.setForeground(0xFFFFFF)
gpu.setBackground(0x000000)
local screenAddr
function gpu.getScreen()
return screenAddr
end
termutils.init()
write("\x1b[?25l") --Disable cursor
modules.component.api.register(nil, "gpu", gpu)
screenAddr = modules.component.api.register(nil, "screen", {getKeyboards = function() return {"TODO:SetThisUuid"} end}) --verry dummy screen, TODO: make it better, kbd uuid also in epoll.c
modules.component.api.register("TODO:SetThisUuid", "keyboard", {})
deadhooks[#deadhooks + 1] = function()
write("\x1b[?25h") --Enable cursor on quit
end
end
return fbgpu