mirror of
https://cheapiesystems.com/git/digistuff
synced 2024-07-15 12:09:27 +02:00
a5ca8f19b7
This allows part of a buffer to be sent instead of the whole thing, meaning that driving digiscreen arrays can now be done with fewer commands and no temporary buffers. This also greatly improves the speed of doing so, and I suppose also allows hardware-accelerated scrolling if your display is smaller than 64x64...
459 lines
16 KiB
Lua
459 lines
16 KiB
Lua
local font = dofile(minetest.get_modpath("digistuff")..DIR_DELIM.."gpu-font.lua")
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local function explodebits(input)
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local output = {}
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for i=0,7,1 do
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output[i] = input%(2^(i+1)) >= 2^i
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end
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return output
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end
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local function implodebits(input)
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local output = 0
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for i=0,7,1 do
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output = output + (input[i] and 2^i or 0)
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end
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return output
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end
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local function rgbtohsv(r,g,b)
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r = r/255
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g = g/255
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b = b/255
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max = math.max(r,g,b)
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min = math.min(r,g,b)
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delta = max-min
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local hue = 0
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if delta > 0 then
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if max == r then
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hue = (g-b)/delta
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hue = (hue%6)*60
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elseif max == g then
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hue = (b-r)/delta
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hue = 60*(hue+2)
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elseif max == b then
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hue = (r-g)/delta
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hue = 60*(hue+4)
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end
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hue = hue/360
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end
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local sat = 0
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if max > 0 then
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sat = delta/max
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end
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return math.floor(hue*255),math.floor(sat*255),math.floor(max*255)
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end
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local function hsvtorgb(h,s,v)
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h = h/255*360
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s = s/255
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v = v/255
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local c = s*v
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local x = (h/60)%2
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x = 1-math.abs(x-1)
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x = x*c
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local m = v-c
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local r = 0
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local g = 0
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local b = 0
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if h < 60 then
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r = c
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g = x
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elseif h < 120 then
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r = x
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g = c
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elseif h < 180 then
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g = c
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b = x
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elseif h < 240 then
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g = x
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b = c
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elseif h < 300 then
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r = x
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b = c
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else
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r = c
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b = x
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end
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r = r+m
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g = g+m
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b = b+m
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return math.floor(r*255),math.floor(g*255),math.floor(b*255)
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end
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local function bitwiseblend(srcr,dstr,srcg,dstg,srcb,dstb,mode)
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local srbits = explodebits(srcr)
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local sgbits = explodebits(srcg)
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local sbbits = explodebits(srcb)
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local drbits = explodebits(dstr)
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local dgbits = explodebits(dstg)
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local dbbits = explodebits(dstb)
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for i=0,7,1 do
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if mode == "and" then
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drbits[i] = srbits[i] and drbits[i]
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dgbits[i] = sgbits[i] and dgbits[i]
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dbbits[i] = sbbits[i] and dbbits[i]
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elseif mode == "or" then
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drbits[i] = srbits[i] or drbits[i]
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dgbits[i] = sgbits[i] or dgbits[i]
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dbbits[i] = sbbits[i] or dbbits[i]
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elseif mode == "xor" then
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drbits[i] = srbits[i] ~= drbits[i]
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dgbits[i] = sgbits[i] ~= dgbits[i]
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dbbits[i] = sbbits[i] ~= dbbits[i]
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elseif mode == "xnor" then
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drbits[i] = srbits[i] == drbits[i]
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dgbits[i] = sgbits[i] == dgbits[i]
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dbbits[i] = sbbits[i] == dbbits[i]
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elseif mode == "not" then
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drbits[i] = not srbits[i]
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dgbits[i] = not sgbits[i]
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dbbits[i] = not sbbits[i]
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elseif mode == "nand" then
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drbits[i] = not (srbits[i] and drbits[i])
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dgbits[i] = not (sgbits[i] and dgbits[i])
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dbbits[i] = not (sbbits[i] and dbbits[i])
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elseif mode == "nor" then
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drbits[i] = not (srbits[i] or drbits[i])
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dgbits[i] = not (sgbits[i] or dgbits[i])
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dbbits[i] = not (sbbits[i] or dbbits[i])
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end
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end
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return string.format("%02X%02X%02X",implodebits(drbits),implodebits(dgbits),implodebits(dbbits))
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end
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local function blend(src,dst,mode,transparent)
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local srcr = tonumber(string.sub(src,1,2),16)
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local srcg = tonumber(string.sub(src,3,4),16)
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local srcb = tonumber(string.sub(src,5,6),16)
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local dstr = tonumber(string.sub(dst,1,2),16)
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local dstg = tonumber(string.sub(dst,3,4),16)
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local dstb = tonumber(string.sub(dst,5,6),16)
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local op = "normal"
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if type(mode) == "string" then op = string.lower(mode) end
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if op == "normal" then
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return src
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elseif op == "nop" then
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return dst
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elseif op == "overlay" then
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return (string.upper(src) == string.upper(transparent)) and dst or src
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elseif op == "add" then
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local r = math.min(255,srcr+dstr)
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local g = math.min(255,srcg+dstg)
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local b = math.min(255,srcb+dstb)
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return string.format("%02X%02X%02X",r,g,b)
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elseif op == "sub" then
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local r = math.max(0,dstr-srcr)
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local g = math.max(0,dstg-srcg)
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local b = math.max(0,dstb-srcb)
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return string.format("%02X%02X%02X",r,g,b)
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elseif op == "isub" then
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local r = math.max(0,srcr-dstr)
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local g = math.max(0,srcg-dstg)
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local b = math.max(0,srcb-dstb)
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return string.format("%02X%02X%02X",r,g,b)
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elseif op == "average" then
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local r = math.min(255,(srcr+dstr)/2)
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local g = math.min(255,(srcg+dstg)/2)
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local b = math.min(255,(srcb+dstb)/2)
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return string.format("%02X%02X%02X",r,g,b)
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elseif op == "and" or op == "or" or op == "xor" or op == "xnor" or op == "not" or op == "nand" or op == "nor" then
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return bitwiseblend(srcr,dstr,srcg,dstg,srcb,dstb,op)
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elseif op == "tohsv" or op == "rgbtohsv" then
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return string.format("%02X%02X%02X",rgbtohsv(srcr,srcg,srcb))
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elseif op == "torgb" or op == "hsvtorgb" then
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return string.format("%02X%02X%02X",hsvtorgb(srcr,srcg,srcb))
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else
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return src
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end
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end
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local function runcommand(pos,meta,command)
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if type(command) ~= "table" then return end
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if command.command == "createbuffer" then
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if type(command.buffer) ~= "number" or type(command.xsize) ~= "number" or type(command.ysize) ~= "number" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local xsize = math.min(64,math.floor(command.xsize))
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local ysize = math.min(64,math.floor(command.ysize))
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if xsize < 1 or ysize < 1 then return end
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local fillcolor = command.fill
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if type(fillcolor) ~= "string" or string.len(fillcolor) > 7 or string.len(fillcolor) < 6 then fillcolor = "000000" end
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if string.sub(fillcolor,1,1) == "#" then fillcolor = string.sub(fillcolor,2,7) end
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if not tonumber(fillcolor,16) then fillcolor = "000000" end
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local buffer = {}
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buffer.xsize = xsize
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buffer.ysize = ysize
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for y=1,ysize,1 do
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buffer[y] = {}
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for x=1,xsize,1 do
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buffer[y][x] = fillcolor
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end
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end
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meta:set_string("buffer"..bufnum,minetest.serialize(buffer))
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elseif command.command == "send" then
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if type(command.buffer) ~= "number" or type(command.channel) ~= "string" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) == "table" then
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digiline:receptor_send(pos,digiline.rules.default,command.channel,buffer)
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end
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elseif command.command == "sendregion" then
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if type(command.buffer) ~= "number" or type(command.channel) ~= "string" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) ~= "table" then return end
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if type(command.x1) ~= "number" or type(command.x2) ~= "number" or type(command.y1) ~= "number" or type(command.x2) ~= "number" then return end
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local x1 = math.min(64,math.floor(command.x1))
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local y1 = math.min(64,math.floor(command.y1))
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local x2 = math.min(64,math.floor(command.x2))
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local y2 = math.min(64,math.floor(command.y2))
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if x1 < 1 or y1 < 1 or x2 < 1 or y2 < 1 then return end
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x2 = math.min(x2,buffer.xsize)
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y2 = math.min(y2,buffer.ysize)
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if x1 > x2 or y1 > y2 then return end
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local tempbuf = {}
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for y=y1,y2,1 do
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local dsty = y-y1+1
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tempbuf[dsty] = {}
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for x=x1,x2,1 do
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local dstx = x-x1+1
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tempbuf[dsty][dstx] = buffer[y][x]
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end
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end
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digiline:receptor_send(pos,digiline.rules.default,command.channel,tempbuf)
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elseif command.command == "drawrect" then
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if type(command.buffer) ~= "number" or type(command.x1) ~= "number" or type(command.y1) ~= "number" or type(command.x2) ~= "number" or type(command.y2) ~= "number" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local x1 = math.min(64,math.floor(command.x1))
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local y1 = math.min(64,math.floor(command.y1))
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local x2 = math.min(64,math.floor(command.x2))
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local y2 = math.min(64,math.floor(command.y2))
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if x1 < 1 or y1 < 1 or x2 < 1 or y2 < 1 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) ~= "table" then return end
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x2 = math.min(x2,buffer.xsize)
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y2 = math.min(y2,buffer.ysize)
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if x1 > x2 or y1 > y2 then return end
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local fillcolor = command.fill
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if type(fillcolor) ~= "string" or string.len(fillcolor) > 7 or string.len(fillcolor) < 6 then fillcolor = "000000" end
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if string.sub(fillcolor,1,1) == "#" then fillcolor = string.sub(fillcolor,2,7) end
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if not tonumber(fillcolor,16) then fillcolor = "000000" end
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local edgecolor = command.edge
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if type(edgecolor) ~= "string" or string.len(edgecolor) > 7 or string.len(edgecolor) < 6 then edgecolor = fillcolor end
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if string.sub(edgecolor,1,1) == "#" then edgecolor = string.sub(edgecolor,2,7) end
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if not tonumber(edgecolor,16) then edgecolor = fillcolor end
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for y=y1,y2,1 do
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for x=x1,x2,1 do
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buffer[y][x] = fillcolor
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end
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end
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if fillcolor ~= edgecolor then
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for x=x1,x2,1 do
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buffer[y1][x] = edgecolor
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buffer[y2][x] = edgecolor
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end
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for y=y1,y2,1 do
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buffer[y][x1] = edgecolor
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buffer[y][x2] = edgecolor
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end
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end
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meta:set_string("buffer"..bufnum,minetest.serialize(buffer))
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elseif command.command == "drawpoint" then
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if type(command.buffer) ~= "number" or type(command.x) ~= "number" or type(command.y) ~= "number" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local x = math.floor(command.x)
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local y = math.floor(command.y)
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if x < 1 or y < 1 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) ~= "table" then return end
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if x > buffer.xsize or y > buffer.ysize then return end
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local color = command.color
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if type(color) ~= "string" or string.len(color) > 7 or string.len(color) < 6 then color = "000000" end
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if string.sub(color,1,1) == "#" then color = string.sub(color,2,7) end
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if not tonumber(color,16) then color = "000000" end
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buffer[y][x] = color
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meta:set_string("buffer"..bufnum,minetest.serialize(buffer))
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elseif command.command == "copy" then
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if type(command.src) ~= "number" or type(command.dst) ~= "number" or type(command.srcx) ~= "number" or type(command.srcy) ~= "number" or type(command.dstx) ~= "number" or type(command.dsty) ~= "number" or type(command.xsize) ~= "number" or type(command.ysize) ~= "number" then return end
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local src = math.floor(command.src)
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if src < 0 or src > 7 then return end
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local dst = math.floor(command.dst)
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if dst < 0 or dst > 7 then return end
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local srcx = math.floor(command.srcx)
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local srcy = math.floor(command.srcy)
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local dstx = math.floor(command.dstx)
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local dsty = math.floor(command.dsty)
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local xsize = math.floor(command.xsize)
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local ysize = math.floor(command.ysize)
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if srcx < 1 or srcy < 1 or dstx < 1 or dsty < 1 or xsize < 1 or ysize < 1 then return end
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local sourcebuffer = meta:get_string("buffer"..src)
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local destbuffer = meta:get_string("buffer"..dst)
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if string.len(sourcebuffer) == 0 then return end
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sourcebuffer = minetest.deserialize(sourcebuffer)
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if type(sourcebuffer) ~= "table" then return end
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if string.len(destbuffer) == 0 then return end
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destbuffer = minetest.deserialize(destbuffer)
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if type(destbuffer) ~= "table" then return end
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if srcx + xsize-1 > sourcebuffer.xsize or srcy + ysize-1 > sourcebuffer.ysize then return end
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if dstx + xsize-1 > destbuffer.xsize or dsty + ysize-1 > destbuffer.ysize then return end
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local transparent = command.transparent
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if type(transparent) ~= "string" or string.len(transparent) > 7 or string.len(transparent) < 6 then transparent = "000000" end
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if string.sub(transparent,1,1) == "#" then transparent = string.sub(transparent,2,7) end
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if not tonumber(transparent,16) then transparent = "000000" end
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for y=0,ysize-1,1 do
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for x=0,xsize-1,1 do
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local srcpx = sourcebuffer[srcy+y][srcx+x]
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local destpx = destbuffer[dsty+y][dstx+x]
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destbuffer[dsty+y][dstx+x] = blend(srcpx,destpx,command.mode,transparent)
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end
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end
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meta:set_string("buffer"..dst,minetest.serialize(destbuffer))
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elseif command.command == "load" then
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if type(command.buffer) ~= "number" or type(command.x) ~= "number" or type(command.y) ~= "number" or type(command.data) ~= "table" then return end
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local xstart = math.floor(command.x)
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local ystart = math.floor(command.y)
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if xstart < 1 or ystart < 1 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) ~= "table" then return end
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if type(command.data[1]) ~= "table" then return end
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if #command.data[1] < 1 then return end
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local ysize = #command.data
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local xsize = #command.data[1]
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if xstart+xsize-1 > buffer.xsize or ystart+ysize-1 > buffer.ysize then return end
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for y=1,ysize,1 do
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if type(command.data[y]) == "table" then
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for x=1,xsize,1 do
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local color = command.data[y][x]
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if type(color) == "string" then
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if string.len(color) == 7 then color = string.sub(color,2,7) end
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if tonumber(color,16) then
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buffer[ystart+y-1][xstart+x-1] = color
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end
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end
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end
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end
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end
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meta:set_string("buffer"..bufnum,minetest.serialize(buffer))
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elseif command.command == "text" then
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if type(command.buffer) ~= "number" or type(command.x) ~= "number" or type(command.y) ~= "number" or type(command.text) ~= "string" or string.len(command.text) < 1 then return end
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command.text = string.sub(command.text,1,16)
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local bufnum = math.floor(command.buffer)
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if bufnum < 0 or bufnum > 7 then return end
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local x = math.floor(command.x)
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local y = math.floor(command.y)
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if x < 1 or y < 1 then return end
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local buffer = meta:get_string("buffer"..bufnum)
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if string.len(buffer) == 0 then return end
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buffer = minetest.deserialize(buffer)
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if type(buffer) ~= "table" then return end
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if x > buffer.xsize or y > buffer.ysize then return end
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local color = command.color
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if type(color) ~= "string" or string.len(color) > 7 or string.len(color) < 6 then color = "ff6600" end
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if string.sub(color,1,1) == "#" then color = string.sub(color,2,7) end
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if not tonumber(color,16) then color = "ff6600" end
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for i=1,string.len(command.text),1 do
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local char = font[string.byte(string.sub(command.text,i,i))]
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for chary=1,12,1 do
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for charx=1,5,1 do
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local startx = x + (i*6-6)
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if char[chary][charx] and y+chary-1 <= buffer.ysize and startx+charx-1 <= buffer.xsize then
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local dstpx = buffer[y+chary-1][startx+charx-1]
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buffer[y+chary-1][startx+charx-1] = blend(color,dstpx,command.mode,"")
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end
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end
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end
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end
|
|
meta:set_string("buffer"..bufnum,minetest.serialize(buffer))
|
|
end
|
|
end
|
|
|
|
minetest.register_node("digistuff:gpu", {
|
|
description = "Digilines 2D Graphics Processor",
|
|
groups = {cracky=3},
|
|
on_construct = function(pos)
|
|
local meta = minetest.get_meta(pos)
|
|
meta:set_string("formspec","field[channel;Channel;${channel}")
|
|
end,
|
|
tiles = {
|
|
"digistuff_gpu_top.png",
|
|
"jeija_microcontroller_bottom.png",
|
|
"jeija_microcontroller_sides.png",
|
|
"jeija_microcontroller_sides.png",
|
|
"jeija_microcontroller_sides.png",
|
|
"jeija_microcontroller_sides.png"
|
|
},
|
|
inventory_image = "digistuff_gpu_top.png",
|
|
drawtype = "nodebox",
|
|
selection_box = {
|
|
--From luacontroller
|
|
type = "fixed",
|
|
fixed = { -8/16, -8/16, -8/16, 8/16, -5/16, 8/16 },
|
|
},
|
|
_digistuff_channelcopier_fieldname = "channel",
|
|
node_box = {
|
|
--From Luacontroller
|
|
type = "fixed",
|
|
fixed = {
|
|
{-8/16, -8/16, -8/16, 8/16, -7/16, 8/16}, -- Bottom slab
|
|
{-5/16, -7/16, -5/16, 5/16, -6/16, 5/16}, -- Circuit board
|
|
{-3/16, -6/16, -3/16, 3/16, -5/16, 3/16}, -- IC
|
|
}
|
|
},
|
|
paramtype = "light",
|
|
sunlight_propagates = true,
|
|
on_receive_fields = function(pos, formname, fields, sender)
|
|
local name = sender:get_player_name()
|
|
if minetest.is_protected(pos,name) and not minetest.check_player_privs(name,{protection_bypass=true}) then
|
|
minetest.record_protection_violation(pos,name)
|
|
return
|
|
end
|
|
local meta = minetest.get_meta(pos)
|
|
if fields.channel then meta:set_string("channel",fields.channel) end
|
|
end,
|
|
digiline =
|
|
{
|
|
receptor = {},
|
|
effector = {
|
|
action = function(pos,node,channel,msg)
|
|
local meta = minetest.get_meta(pos)
|
|
if meta:get_string("channel") ~= channel or type(msg) ~= "table" then return end
|
|
if type(msg[1]) == "table" then
|
|
for i=1,32,1 do
|
|
if type(msg[i]) == "table" then
|
|
runcommand(pos,meta,msg[i])
|
|
end
|
|
end
|
|
else
|
|
runcommand(pos,meta,msg)
|
|
end
|
|
end
|
|
},
|
|
},
|
|
})
|
|
|
|
minetest.register_craft({
|
|
output = "digistuff:gpu",
|
|
recipe = {
|
|
{"","default:steel_ingot",""},
|
|
{"digilines:wire_std_00000000","mesecons_luacontroller:luacontroller0000","digilines:wire_std_00000000"},
|
|
{"dye:red","dye:green","dye:blue"},
|
|
}
|
|
})
|