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raze/polymer/eduke32/source/lunatic/util/cmpart.lua
helixhorned d3665719d9 Add helper utility lunatic/util/cmpart.lua.
git-svn-id: https://svn.eduke32.com/eduke32@4219 1a8010ca-5511-0410-912e-c29ae57300e0
2013-12-26 19:45:09 +00:00

100 lines
2.3 KiB
Lua
Executable file

#!/usr/bin/env luajit
local io = require("io")
local os = require("os")
local string = require("string")
local format = string.format
local table = require("table")
local B = require("build")
local ffi = require("ffi")
local C = ffi.C
ffi.cdef[[
int memcmp(const void *s1, const void *s2, size_t n);
]]
local fn1, fn2 = arg[1], arg[2]
local noOnlyLeft = (arg[3]=="-l") -- don't show diff lines where left has tile, right hasn't
local function err(str)
io.stderr:write(str, "\n")
os.exit(1)
end
local function printf(fmt, ...)
io.stdout:write(string.format(fmt, ...), "\n")
end
if (not fn1 or not fn2) then
err("Usage: "..arg[0].." </path/to/tilesXXX.ART> </path/to/tilesYYY.ART> [-l]")
end
local af1, errmsg = B.artfile(fn1)
if (errmsg) then
err(errmsg)
end
local af2, errmsg = B.artfile(fn2)
if (errmsg) then
err(errmsg)
end
-- Check for same start/end
if (af1.tbeg ~= af2.tbeg) then
err("tile starts differ: "..af1.tbeg.." "..af2.tbeg)
end
if (af1.tend ~= af2.tend) then
err("tile ends differ: "..af1.tend.." "..af2.tend)
end
-- Compare the two ART files
local SIZEOF_PICANM = ffi.sizeof(af1.picanm[0])
for i=0,af1.numtiles-1 do
local sx1, sx2 = af1.sizx[i], af2.sizx[i]
local sxdif = (sx1 ~= sx2)
local sy1, sy2 = af1.sizy[i], af2.sizy[i]
local sydif = (sy1 ~= sy2)
local sizedif = (sxdif or sydif)
local picanmdif = (C.memcmp(af1.picanm[i], af2.picanm[i], SIZEOF_PICANM) ~= 0)
local datadif = false
-- compare data
if (not sizedif) then
local pic1 = af1:getpic(i)
local pic2 = af2:getpic(i)
if (pic1 and pic2 and C.memcmp(pic1, pic2, sx1*sy1) ~= 0) then
datadif = true
end
end
if (sizedif or picanmdif or datadif) then
local strbuf = {}
local s1str = sx1*sy1==0 and "none" or format("(%d,%d)", sx1, sy1)
local s2str = sx2*sy2==0 and "none" or format("(%d,%d)", sx2, sy2)
if ((sxdif or sydif) and (not noOnlyLeft or s2str ~= "none")) then
strbuf[#strbuf+1] = format("size %s %s", s1str, s2str)
end
if (picanmdif) then
strbuf[#strbuf+1] = "picanm"
end
if (not sizedif and datadif) then
strbuf[#strbuf+1] = "data"
end
if (#strbuf > 0) then
io.stdout:write(i..": "..table.concat(strbuf, ", "), "\n")
end
end
end