mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-26 11:40:44 +00:00
405 lines
9.8 KiB
Lua
405 lines
9.8 KiB
Lua
|
|
-- Loaders for various BUILD structures for LuaJIT
|
|
|
|
|
|
local ffi = require "ffi"
|
|
local io = require "io"
|
|
local bit = require "bit"
|
|
local string = require "string"
|
|
local table = require "table"
|
|
|
|
local error = error
|
|
local assert = assert
|
|
local print = print
|
|
local setmetatable = setmetatable
|
|
local tostring = tostring
|
|
local tonumber = tonumber
|
|
|
|
module(...)
|
|
|
|
ffi.cdef[[
|
|
#pragma pack(push,1)
|
|
typedef struct
|
|
{
|
|
int16_t wallptr, wallnum;
|
|
int32_t ceilingz, floorz;
|
|
uint16_t ceilingstat, floorstat;
|
|
int16_t ceilingpicnum, ceilingheinum;
|
|
int8_t ceilingshade;
|
|
uint8_t ceilingpal, ceilingxpanning, ceilingypanning;
|
|
int16_t floorpicnum, floorheinum;
|
|
int8_t floorshade;
|
|
uint8_t floorpal, floorxpanning, floorypanning;
|
|
uint8_t visibility, filler;
|
|
int16_t lotag, hitag, extra;
|
|
} sectortype;
|
|
|
|
typedef struct
|
|
{
|
|
int32_t x, y;
|
|
int16_t point2, nextwall, nextsector;
|
|
uint16_t cstat;
|
|
int16_t picnum, overpicnum;
|
|
int8_t shade;
|
|
uint8_t pal, xrepeat, yrepeat, xpanning, ypanning;
|
|
int16_t lotag, hitag, extra;
|
|
} walltype;
|
|
|
|
typedef struct
|
|
{
|
|
int32_t x, y, z;
|
|
uint16_t cstat;
|
|
int16_t picnum;
|
|
int8_t shade;
|
|
uint8_t pal, clipdist, filler;
|
|
uint8_t xrepeat, yrepeat;
|
|
int8_t xoffset, yoffset;
|
|
int16_t sectnum, statnum;
|
|
int16_t ang, owner, xvel, yvel, zvel;
|
|
int16_t lotag, hitag, extra;
|
|
} spritetype;
|
|
#pragma pack(pop)
|
|
]]
|
|
|
|
local C = ffi.C
|
|
|
|
|
|
MAX =
|
|
{
|
|
SECTORS = { [7]=1024, [8]=4096, [9]=4096 },
|
|
WALLS = { [7]=8192, [8]=16384, [9]=16384 },
|
|
SPRITES = { [7]=4096, [8]=16384, [9]=16384 },
|
|
|
|
TILES = 30720,
|
|
}
|
|
|
|
local function doread(fh, basectype, numelts)
|
|
local cd = ffi.new(basectype.."[?]", numelts)
|
|
local size = ffi.sizeof(cd)
|
|
|
|
if (numelts==0) then
|
|
return nil
|
|
end
|
|
|
|
assert(size % numelts == 0)
|
|
local datstr = fh:read(size)
|
|
|
|
if (datstr == nil or #datstr < size) then
|
|
fh:close()
|
|
return nil
|
|
end
|
|
|
|
ffi.copy(cd, datstr, size)
|
|
|
|
return cd
|
|
end
|
|
|
|
local function set_secwalspr_mt(structar, maxidx)
|
|
local mt = {
|
|
__index = function(tab, idx)
|
|
if (idx < 0 or idx >= maxidx) then
|
|
error("Invalid structure array read access", 2)
|
|
end
|
|
return structar[idx]
|
|
end,
|
|
|
|
__newindex = function(tab, idx, newval)
|
|
error('cannot write directly to structure array', 2)
|
|
end,
|
|
}
|
|
|
|
return setmetatable({}, mt)
|
|
end
|
|
|
|
|
|
local function get_numyaxbunches(map)
|
|
if (map.version < 9) then
|
|
return 0
|
|
end
|
|
|
|
local numbunches = 0
|
|
|
|
for i=0,map.numsectors-1 do
|
|
for cf=0,1 do
|
|
local sec = map.sector[i]
|
|
local stat = (cf==0) and sec.ceilingstat or sec.floorstat
|
|
local xpan = (cf==0) and sec.ceilingxpanning or sec.floorxpanning
|
|
|
|
if (bit.band(stat, 1024) ~= 0) then
|
|
if (xpan+1 > numbunches) then
|
|
numbunches = xpan+1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
return numbunches
|
|
end
|
|
|
|
--== sprite canonicalizer ==--
|
|
local function sprite2str(s)
|
|
local FMT = "%+11d_"
|
|
-- NOTE: this canonicalization isn't very useful except for debugging
|
|
-- copy-paste in the editor.
|
|
-- tostring(s): make sort stable
|
|
return string.format(FMT:rep(4).."%s", s.x, s.y, s.z, s.ang, tostring(s))
|
|
end
|
|
|
|
local function canonicalize_sprite_order(map)
|
|
local numsprites = map.numsprites
|
|
|
|
map.spriten2o = {} -- mapping of new to old sprite index
|
|
|
|
if (numsprites == 0) then
|
|
return
|
|
end
|
|
|
|
local spriteidx = {}
|
|
|
|
for i=0,numsprites-1 do -- 0->1 based indexing
|
|
spriteidx[i+1] = i
|
|
end
|
|
|
|
table.sort(spriteidx,
|
|
function(i1, i2)
|
|
return sprite2str(map.sprite[i1]) < sprite2str(map.sprite[i2])
|
|
end)
|
|
|
|
-- deep-copied sprite structs
|
|
local spritedup = {}
|
|
|
|
for i=0,numsprites-1 do
|
|
-- save sorting permutation (0-based -> 0-based)
|
|
map.spriten2o[i] = assert(spriteidx[i+1])
|
|
|
|
-- back up struct
|
|
spritedup[i] = ffi.new("spritetype")
|
|
ffi.copy(spritedup[i], map.sprite[i], ffi.sizeof("spritetype"))
|
|
end
|
|
|
|
for i=0,numsprites-1 do -- do the actual rearrangement
|
|
map.sprite[i] = spritedup[spriteidx[i+1]]
|
|
end
|
|
end
|
|
|
|
--== LOADBOARD ==--
|
|
-- returns:
|
|
-- on failure, nil, errmsg
|
|
-- on success, a table
|
|
-- {
|
|
-- version = <num>,
|
|
-- numsectors=<num>, numwalls=<num>, numsprites=<num>,
|
|
-- sector=<cdata (array of sectortype)>,
|
|
-- wall=<cdata (array of walltype)>,
|
|
-- sprite=nil or <cdata> (array of spritetype),
|
|
-- start =
|
|
-- { x=<num>, y=<num>, z=<num>, ang=<num>, sectnum=<num> },
|
|
-- numbunches = <num>,
|
|
-- }
|
|
function loadboard(filename, do_canonicalize_sprite)
|
|
local fh, errmsg = io.open(filename)
|
|
|
|
if (fh==nil) then
|
|
return nil, errmsg
|
|
end
|
|
|
|
local cd = doread(fh, "int32_t", 4)
|
|
if (cd==nil) then
|
|
return nil, "Couldn't read header"
|
|
end
|
|
|
|
-- The table we'll return on success
|
|
local map = {
|
|
version = cd[0],
|
|
start = { x=cd[1], y=cd[2], z=cd[3] },
|
|
}
|
|
|
|
if (map.version < 7 or map.version > 9) then
|
|
fh:close()
|
|
return nil, "Invalid map version"
|
|
end
|
|
|
|
cd = doread(fh, "int16_t", 3)
|
|
if (cd==nil) then
|
|
return nil, "Couldn't read header (2)"
|
|
end
|
|
|
|
map.start.ang = cd[0]
|
|
map.start.sectnum = cd[1]
|
|
|
|
-- sectors
|
|
map.numsectors = cd[2]
|
|
if (map.numsectors == nil) then
|
|
return nil, "Couldn't read number of sectors"
|
|
end
|
|
if (map.numsectors <= 0 or map.numsectors > MAX.SECTORS[map.version]) then
|
|
fh:close()
|
|
return nil, "Invalid number of sectors"
|
|
end
|
|
|
|
map.sector = doread(fh, "sectortype", map.numsectors)
|
|
if (map.sector == nil) then
|
|
return nil, "Couldn't read sectors"
|
|
end
|
|
|
|
-- walls
|
|
cd = doread(fh, "int16_t", 1)
|
|
if (cd == nil) then
|
|
return nil, "Couldn't read number of walls"
|
|
end
|
|
map.numwalls = cd[0]
|
|
if (map.numwalls <= 0 or map.numwalls > MAX.WALLS[map.version]) then
|
|
fh:close()
|
|
return nil, "Invalid number of walls"
|
|
end
|
|
|
|
map.wall = doread(fh, "walltype", map.numwalls)
|
|
if (map.wall == nil) then
|
|
return nil, "Couldn't read walls"
|
|
end
|
|
|
|
-- sprites
|
|
cd = doread(fh, "int16_t", 1)
|
|
if (cd == nil) then
|
|
return nil, "Couldn't read number of sprites"
|
|
end
|
|
map.numsprites = cd[0]
|
|
if (map.numsprites < 0 or map.numsprites > MAX.SPRITES[map.version]) then
|
|
fh:close()
|
|
return nil, "Invalid number of sprites"
|
|
end
|
|
|
|
map.sprite = doread(fh, "spritetype", map.numsprites)
|
|
if (map.numsprites~=0 and map.sprite == nil) then
|
|
return nil, "Couldn't read sprites"
|
|
end
|
|
fh:close()
|
|
|
|
if (do_canonicalize_sprite) then
|
|
-- must do this before setting metatable
|
|
canonicalize_sprite_order(map)
|
|
end
|
|
|
|
map.sector = set_secwalspr_mt(map.sector, map.numsectors)
|
|
map.wall = set_secwalspr_mt(map.wall, map.numwalls)
|
|
map.sprite = set_secwalspr_mt(map.sprite, map.numsprites)
|
|
|
|
map.numbunches = get_numyaxbunches(map)
|
|
|
|
-- done
|
|
return map
|
|
end
|
|
|
|
|
|
local function set_sizarray_mt(sizar)
|
|
local mt = {
|
|
__index = function(tab, idx)
|
|
if (idx < 0 or idx >= MAX.TILES) then
|
|
error("Invalid tile size array read access", 2)
|
|
end
|
|
return sizar[idx]
|
|
end,
|
|
|
|
__newindex = function(tab, idx, newval)
|
|
if (idx < 0 or idx >= MAX.TILES) then
|
|
error("Invalid tile size array write access", 2)
|
|
end
|
|
sizar[idx] = newval
|
|
end,
|
|
}
|
|
|
|
return setmetatable({}, mt)
|
|
end
|
|
|
|
|
|
--== LOADARTS (currently tilesizx and tilesizy only) ==--
|
|
-- filenames: a table with ART file names
|
|
-- returns:
|
|
-- on failure, nil, errmsg
|
|
-- on success, a table
|
|
-- {
|
|
-- sizx = <cdata (array of length MAXTILES)>
|
|
-- sizy = <cdata (array of length MAXTILES)>
|
|
-- }
|
|
function loadarts(filenames)
|
|
local tile = {
|
|
sizx = ffi.new("int16_t [?]", MAX.TILES),
|
|
sizy = ffi.new("int16_t [?]", MAX.TILES),
|
|
}
|
|
|
|
for fni=1,#filenames do
|
|
local fn = filenames[fni]
|
|
local fh, errmsg = io.open(fn)
|
|
|
|
if (fh==nil) then
|
|
return nil, errmsg
|
|
end
|
|
|
|
local cd = doread(fh, "int32_t", 4)
|
|
-- artversion, numtiles, localtilestart, localtileend
|
|
if (cd==nil) then
|
|
fh:close()
|
|
return nil, fn..": Couldn't read header"
|
|
end
|
|
|
|
local localtilestart = cd[2]
|
|
local numtileshere = cd[3]-localtilestart+1
|
|
-- print(fn.. ": "..cd[2].. ", "..cd[3])
|
|
|
|
if (numtileshere < 0 or localtilestart+numtileshere >= MAX.TILES) then
|
|
fh:close()
|
|
return nil, fn..": Invalid tile start/end"
|
|
end
|
|
|
|
if (numtileshere==0) then
|
|
fh:close()
|
|
else
|
|
-- X sizes
|
|
cd = doread(fh, "int16_t", numtileshere)
|
|
if (cd == nil) then
|
|
fh:close()
|
|
return nil, fn..": Couldn't read tilesizx array"
|
|
end
|
|
|
|
ffi.copy(tile.sizx+localtilestart, cd, numtileshere*2)
|
|
|
|
-- Y sizes
|
|
cd = doread(fh, "int16_t", numtileshere)
|
|
if (cd == nil) then
|
|
fh:close()
|
|
return nil, fn..": Couldn't read tilesizy array"
|
|
end
|
|
|
|
ffi.copy(tile.sizy+localtilestart, cd, numtileshere*2)
|
|
end
|
|
end
|
|
|
|
tile.sizx = set_sizarray_mt(tile.sizx)
|
|
tile.sizy = set_sizarray_mt(tile.sizy)
|
|
|
|
return tile
|
|
end
|
|
|
|
function readdefs(fn)
|
|
local fh, errmsg = io.open(fn)
|
|
|
|
if (fh==nil) then
|
|
return nil, errmsg
|
|
end
|
|
|
|
local defs = {}
|
|
|
|
while (true) do
|
|
local line = fh:read()
|
|
if (line == nil) then
|
|
break
|
|
end
|
|
local defname, numstr = string.match(line, "#?%s*define%s+([%a_][%w_]+)%s+([0-9]+)")
|
|
if (defname) then
|
|
defs[defname] = tonumber(numstr)
|
|
end
|
|
end
|
|
|
|
fh:close()
|
|
return defs
|
|
end
|