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geopy/geo.py

1280 lines
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Python
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#! /usr/bin/python3
import struct
import zlib
import sys
import traceback
import math
try:
from .bones import *
from .polygrid import PolyCell, PolyGrid
from .util import Data
from .geomesh import GeoMesh, GeoFace, GeoVertex
except:
from bones import *
from polygrid import PolyCell, PolyGrid
from util import Data
from geomesh import GeoMesh, GeoFace, GeoVertex
#Ver 0 .geo pre-header:
#Offset Size Description
#0 4 'ziplen' ? Compressed header data size + 4
#4 4 Header size (Must be non-zero for old formats.)
#8 variable zlib Compressed header data
#variable 4 Dummy data?
#Version 2+ .geo pre-header:
#Offset Size Description
#0 4 'ziplen' ? Compressed header data size + 12
#4 4 Legacy header size (Must be 0 for new file formats.)
#8 4 Version number 2 to 5, and 7 to 8
#12 4 Header size
#16 variable zlib Compressed header data
#.geo header
#Offset Size Description
#0 4 i32: gld->datasize
#4 4 i32: texname_blocksize
#8 4 i32: objname_blocksize
#12 4 i32: texidx_blocksize
#16 4 i32: lodinfo_blocksize (only present in version 2 to 6)
#? texname_blocksize PackNames block of texture names
#? objname_blocksize objnames
#? texidx_blocksize TexID[]: texidx_block,
#? lodinfo_blocksize lodinfo (only present in version 2 to 6)
#? ModelHeader ???
#PackNames block:
#Size Description
#4 name_count
#4*name_count offset of the name, relative to the start of name_block
#variable name_block (ASCIIZ?)
#ModelHeader:
#Size Description
#124 ASCIIZ name.
#4 Model pointer (0 in file?)
#4 Float track length (technically a fallback if not specified elsewhere?)
#4 Pointer to an array of Model pointers (-1 in file?)
#*note: pointers aren't really needed.
#Model:
#version 0 to 2: (struct ModelFormatOnDisk_v2: "Common/seq/anim.c" )
#Offset Size Description
#0 4 u32: Flags
#4 4 f32: radius
#8 4 ptr: VBO?
#12 4 i32: tex_count
#16 2 i16: id ("I am this bone" ?)
#18 1 u8: blend_mode
#19 1 u8: loadstate
#20 4 ptr(BoneInfo)
#24 4 ptr(TrickNode)
#28 4 i32: vert_count
#32 4 i32: tri_count
#36 4 ptr: TexID
#40 32 PolyGrid: polygrid
#72 4 ptr(CTri): ctris ?
#76 4 ptr(i32): tags
#80 4 ptr(char): name
#84 4 ptr(AltPivotInfo): api
#88 4 ptr(ModelExtra): extra
#92 12 Vec3: scale
#104 12 Vec3: min
#116 12 Vec3: max
#120 4 ptr(GeoLoadData): gld
#124 84 PackBlockOnDisk
#208
#version 3+: "Common/seq/anim.c"
# Offset Size Description
# 0 4 i32: size
# 4 4 f32: radius
# 8 4 i32: tex_count, The number of TexID entries in the texidx_block.
# 12 4 ptr(BoneInfo): boneinfo ?
# 16 4 i32: vert_count
# 20 4 i32: tri_count
#ver 8+ 24 4 i32: reflection_quad_count
# +4 4 ptr(TexID): tex_idx, Byte offset in the texidx_block to the first TexID for this model.
# +4 32 PolyGrid: grid
# +32 4 ptr(char): name
# +4 4 ptr(AltPivotInfo):
# +4 12 Vec3: scale
# +12 12 Vec3: min
# +12 12 Vec3: max
# +12 12 PackData: pack.tris
# +12 12 PackData: pack.verts
# +12 12 PackData: pack.norms
# +12 12 PackData: pack.sts
# +12 12 PackData: pack.sts3
# +12 12 PackData: pack.weights
# +12 12 PackData: pack.matidxs
# +12 12 PackData: pack.grid
#Ver 4 +12 12 PackData: pack.lmap_utransforms
#Ver 4 +12 12 PackData: pack.lmap_vtransforms
#Ver 7+ +12 12 PackData: pack.reductions
#Ver 8+ +12 12 PackData: pack.reflection_quads
#Ver 7+ +12 12 f32[3]: autolod_dists
# +12 2 i16: id
#PackBlockOnDisk: "Common/seq/anim.c"
#Offset Size Description
#0 12 PackData: tris
#12 12 PackData: verts
#24 12 PackData: norms
#36 12 PackData: sts
#48 12 PackData: weights
#60 12 PackData: matidxs
#72 12 PackData: grid
#84
#PackData:
#Offset Size Description
#0 4 i32: packsize, The compressed size of this data block. 0 if this is uncompressed.
#4 4 u32: unpacksize, The size of this data block when uncompressed.
#8 4 ptr(u8): data, The offset of this block of data inside the .geo's main data block.
#12
#TexID:
#Offset Size Description
#0 2 u16: id, Index to the texture name in the texture name list.
#2 2 u16: count, Number of tris using this texture.
#struct PolyGrid: "libs/UtilitiesLib/components/gridpoly.h"
#Offset Size Description
#0 4 ptr(PolyCell): cell
#4 12 Vec3: pos
#16 4 f32: size
#20 4 f32: inv_size
#24 4 i32: tag
#28 4 i32: num_bits
#32
#PolyCell:
#Offset Size Description
#0 4 ptr(ptr(PolyCell)): children
#4 4 ptr(u16): tri_idxs, Triangle indexes.
#8 4 i32: tri_count
#BoneInfo
#Offset Size Description
#0 4 i32: numbones
#4 4*15 i32[15]: bone_ID, Bones used by this geometry.
#64
#Reductions
#Size Description
#4 int: num_reductions
#num_reductions*4 int[]:num_tris_left
#num_reductions*4 int[]:error_values
#num_reductions*4 int[]:remap_counts
#num_reductions*4 int[]:changes_counts
#4 int: total_remaps
#total_remaps*4 int[]:remaps
#4 int: total_remap_tris
#total_remap_tris*4 int[]:remap_tris
#4 int: total_changes
#total_changes*4 int[]:changes
#4 int: positions_delta_length
#positions_delta_length byte[]: compressDelta(positions, 3, total_changes, "f", 0x8000)
#4 int: total_changes_delta_length
#total_changes_delta_length byte[]: compressDelta(changes, 2, total_changes, "f", 0x1000)
ZERO_BYTE = struct.pack("B", 0)
#def unbyte(v):
# return struct.unpack("B", v)[0]
if sys.version_info[0] < 3:
byte = chr
unbyte = ord
else:
def byte(v):
#return struct.pack("B", v)
return bytes((v,))
def unbyte(v):
return v
def unpackNames(data):
"""Extract strings from data, as layed out as a PackNames structure."""
(length, ) = struct.unpack("<i", data[0:4])
strings = []
data_strings = data[length * 4 + 4:]
for i in range(length):
#todo: scan string for zero
(offset, ) = struct.unpack("<i", data[i * 4 + 4: i * 4 + 4 + 4])
for j in range(offset, len(data_strings)):
if unbyte(data_strings[j]) == 0:
strings.append(data_strings[offset:j])
break
pass
pass
return strings
def packNames(strings):
"""Convert a sequence of strings into a PackNames structure."""
data_strings = b""
data = struct.pack("<i", len(strings))
for s in strings:
data += struct.pack("<i", len(data_strings))
data_strings += s + ZERO_BYTE
return data + data_strings
def unpackStrings(data):
"""Convert a block of ASCIIZ strings into list of strings."""
strings = []
start = 0
for i in range(len(data)):
if unbyte(data[i]) == 0:
strings.append(data[start:i])
start = i + 1
pass
pass
return strings
def packStrings(strings):
"""Convert a list of strings into a block of ASCIIZ strings"""
data = b""
for s in strings:
data += s + ZERO_BYTE
return data
def extractString(data, offset = 0):
"""Extract an ASCIIZ string from a fixed length buffer."""
for i in range(offset, len(data)):
if unbyte(data[i]) == 0:
return data[offset : i]
pass
return data
def storeString(string, length):
"""Store an ASCIIZ string into a fixed length buffer. If the string is longer than the buffer the output will be truncated, with \\x00 character guarenteed at the end."""
if len(string) >= length:
return string[0 : length - 1] + ZERO_BYTE
else:
return string + ZERO_BYTE * (length - len(string))
def uncompressDeltas(src, stride, count, pack_type):
"""Expand a list a delta compressed with deltas
src: Source data containg 3 parts:
- delta codes: Contain 'count' * 'stride' 2 bit size code fields. The end of the block is padded to the byte boundary.
- float scale: A byte with the exponent for scaling floating point deltas. This part is present with integer types, but unused.
- byte data: This is read and processed according to the codes specified in the delta codes block.
stride: the number of channels in the data (1 to 3)
count: the number off elements in the data
pack_type: Is a character indicating the type of packing. Valid values are "f" (float32), "H" (unsigned16), "I" (unsigned32) (these match the struct modules types).
The returned data is an array of arrays, with the inner most arrays being 'stride' long, and the outer array being 'count' in length.
"""
if len(src) <= 0:
return None
#Compute offset to the byte data after all the bit fields.
byte_offset = int((2 * count * stride + 7) / 8)
#print("stride: %d count: %d pack_type: %s" % (stride, count, pack_type))
#print("src:%s" % ([src],))
float_scale = float(1 << unbyte(src[byte_offset]))
float_scale_inv = 1.0 / float_scale
byte_offset += 1
current_bit = 0
if pack_type in "f":
fLast = [0.0] * stride
else:
iLast = [0] * stride
out_data = []
for i in range(count):
row_data = []
for j in range(stride):
code = (unbyte(src[current_bit >> 3]) >> (current_bit & 0x7)) & 0x3
current_bit += 2
if code == 0:
iDelta = 0
elif code == 1:
iDelta = unbyte(src[byte_offset]) - 0x7f
byte_offset += 1
elif code == 2:
iDelta = (
unbyte(src[byte_offset]) |
(unbyte(src[byte_offset + 1]) << 8)
) - 0x7fff
byte_offset += 2
elif code == 3:
(iDelta, ) = struct.unpack("<i", src[byte_offset : byte_offset + 4])
byte_offset += 4
if pack_type == "f":
if code == 3:
(fDelta, ) = struct.unpack("<f", src[byte_offset - 4 : byte_offset])
else:
fDelta = iDelta * float_scale_inv
fLast[j] += fDelta
row_data.append(fLast[j])
elif pack_type == "I":
iLast[j] += iDelta + 1
iLast[j] &= 0xffffffff
row_data.append(iLast[j])
elif pack_type == "H":
iLast[j] += iDelta + 1
iLast[j] &= 0xffff
row_data.append(iLast[j])
out_data.append(row_data)
return out_data
def quantF32(v, float_scale, float_scale_inv):
i = int(v * float_scale)
i &= ~1
return i * float_scale_inv
def compressDeltas(src, stride, count, pack_type, float_scale):
if float_scale != 0:
float_scale_inv = 1.0 / float_scale
else:
float_scale_inv = 1.0
codes = [0] * (stride * count + 3) #over fill it by 3 for easier conversion into byte data
float_scale_byte = byte(int(math.log(float_scale, 2)))
bytes_data = b""
if pack_type in "f":
fLast = [0.0] * stride
else:
iLast = [0] * stride
if pack_type == "I":
iMask = 0xffffffff
else:
iMask = 0xffff
k = 0
for i in range(count):
for j in range(stride):
if pack_type == "f":
fDelta = quantF32(src[i][j], float_scale, float_scale_inv) - fLast[j]
val8 = int(fDelta * float_scale + 0x7f)
val16 = int(fDelta * float_scale + 0x7fff)
else:
t = src[i][j]
iDelta = t - iLast[j] - 1
iLast[j] = t
val8 = iDelta + 0x7f
val16 = iDelta + 0x7fff
val32 = iDelta;
if val8 == 0x7f:
codes[k] = 0
elif val8 & ~0xff == 0:
codes[k] = 1
bytes_data += byte(val8)
if pack_type == "f":
fLast[j] = (val8 - 0x7f) * float_scale_inv + fLast[j];
elif pack_type == "H" or val16 & ~0xffff == 0:
codes[k] = 2
bytes_data += struct.pack("<H", val16)
if pack_type == "f":
fLast[j] = (val16 - 0x7fff) * float_scale_inv + fLast[j];
elif pack_type == "I":
codes[k] = 3
bytes_data += struct.pack("<I", val32 & iMask)
else:
codes[k] = 3
bytes_data += struct.pack("<f", fDelta)
fLast[j] = fDelta + fLast[j]
k += 1
code_data = b""
for i in range(0, stride * count, 4):
v = ((codes[i + 0] << 0) |
(codes[i + 1] << 2) |
(codes[i + 2] << 4) |
(codes[i + 3] << 6))
code_data += byte(v)
return code_data + float_scale_byte + bytes_data
def inferSizes(size, pack_list, other_list):
"""Infer the size of the blocks in 'other_list' as infered by the total size and items in 'pack_list'."""
starts = []
for p in pack_list:
s = p[2]
if s in starts:
continue
starts.append(s)
for o in other_list:
if o in starts:
continue
starts.append(o)
starts.sort()
output = []
for o in other_list:
if o == 0:
output.append( (0, 0, 0) )
continue
i = starts.index(o) + 1
if i < 0 or i >= len(starts):
output.append( (0, 0, o) )
continue
output.append( (0, starts[i] - o, o) )
return tuple(output)
class Reductions:
def __init__(self, model):
self.model = model
def decode(self, data):
(self.num_reductions, ) = data.decode("<i")
self.num_tris_left = data.decode("<" + "i" * self.num_reductions)
self.error_values = data.decode("<" + "f" * self.num_reductions)
self.remap_counts = data.decode("<" + "i" * self.num_reductions)
self.changes_counts = data.decode("<" + "i" * self.num_reductions)
(self.total_remaps, ) = data.decode("<i")
self.remaps = data.decode("<" + "i" * (self.total_remaps * 3))
(self.total_remap_tris, ) = data.decode("<i")
self.remap_tris = data.decode("<" + "i" * self.total_remap_tris)
(self.total_changes, ) = data.decode("<i")
self.changes = data.decode("<" + "i" * self.total_changes)
(positions_delta_length, ) = data.decode("<i")
#print("positions_delta_length: %s" % (positions_delta_length, ))
#print("data remaining: %s" %([data.data[data.offset : ]], ))
#self.dump()
self.positions = uncompressDeltas(data.read(positions_delta_length), 3, self.total_changes, "f")
(tex1s_delta_length, ) = data.decode("<i")
self.tex1s = uncompressDeltas(data.read(tex1s_delta_length), 2, self.total_changes, "f")
#print("data remaining: %s" %([data.data[data.offset : ]], ))
def encode(self):
data = b""
data += struct.pack("<i", self.num_reductions)
data += struct.pack("<" + "i" * self.num_reductions, *self.num_tris_left)
data += struct.pack("<" + "f" * self.num_reductions, *self.error_values)
data += struct.pack("<" + "i" * self.num_reductions, *self.remap_counts)
data += struct.pack("<" + "i" * self.num_reductions, *self.changes_counts)
data += struct.pack("<i", self.total_remaps)
data += struct.pack("<" + "i" * (self.total_remaps * 3), *self.remaps)
data += struct.pack("<i", self.total_remap_tris)
data += struct.pack("<" + "i" * self.total_remap_tris, *self.remap_tris)
data += struct.pack("<i", self.total_changes)
data += struct.pack("<" + "i" * self.total_changes, *self.changes)
d = compressDeltas(self.positions, 3, self.total_changes, "f", 0x8000)
data += struct.pack("<i", len(d))
data += d
d = compressDeltas(self.tex1s, 2, self.total_changes, "f", 0x1000)
data += struct.pack("<i", len(d))
data += d
return data
def dump(self):
print(" reductions:")
print(" num_reductions: %s" % (self.num_reductions, ))
print(" num_tris_left: %s" % (self.num_tris_left, ))
print(" error_values: %s" % (self.error_values, ))
print(" remap_counts: %s" % (self.remap_counts, ))
print(" changes_counts: %s" % (self.changes_counts, ))
print(" total_remaps: %s" % (self.total_remaps, ))
print(" remaps: %s" % (self.remaps, ))
print(" total_remap_tris: %s" % (self.total_remap_tris, ))
print(" remap_tris: %s" % (self.remap_tris, ))
print(" total_changes: %s" % (self.total_changes, ))
print(" changes: %s" % (self.changes, ))
print(" positions: %s" % (self.positions, ))
print(" tex1s: %s" % (self.tex1s, ))
class Model:
def __init__(self, geo):
self.geo = geo
self.radius = None
self.tex_count = None
self.vert_count = None
self.tri_count = None
self.reflection_quad_count = None
self.tex_idx = None
self.name = b""
self.textures = []
pass
def parseHeaderDataV2(self):
(self.flags, ) = self.geo.getHeaderElement("<I")
(self.radius, ) = self.geo.getHeaderElement("<f")
self.geo.header_offset += 4 #ptr(VBO)
#print("VBO: %s" % (self.geo.getHeaderElement("<i"), ))
(self.tex_count, ) = self.geo.getHeaderElement("<i")
(self.id, blend_mode, loadstate) = self.geo.getHeaderElement("<hBB")
#print("blend_mode, loadstate: %d, %d" % (blend_mode, loadstate))
(self.boneinfo_ptr, ) = self.geo.getHeaderElement("<i")
self.geo.header_offset += 4 #ptr(TrickNode)
#print("TrickNode: %s" % (self.geo.getHeaderElement("<i"), ))
(self.vert_count, self.tri_count) = self.geo.getHeaderElement("<ii")
(self.tex_idx_ptr, ) = self.geo.getHeaderElement("<i")
self.grid_header = self.geo.getHeaderElement("<ifffffii")
self.geo.header_offset += 4 #ptr(CTri)
self.geo.header_offset += 4 #ptr(tags)
#print("CTri: %s" % (self.geo.getHeaderElement("<i"), ))
#print("Tags: %s" % (self.geo.getHeaderElement("<i"), ))
(self.name_ptr, self.api_ptr) = self.geo.getHeaderElement("<ii")
#print("???: %s" % (self.geo.getHeaderElement("<f"), ))
self.geo.header_offset += 4 #ptr(ModelExtra)
self.scale = list(self.geo.getHeaderElement("<fff"))
self.min = list(self.geo.getHeaderElement("<fff"))
self.max = list(self.geo.getHeaderElement("<fff"))
self.geo.header_offset += 4 #ptr(GeoLoadData)
#print("GeoLoadData: %s" % (self.geo.getHeaderElement("<i"), ))
self.pack_tris = self.geo.getHeaderElement("<iii")
self.pack_verts = self.geo.getHeaderElement("<iii")
self.pack_norms = self.geo.getHeaderElement("<iii")
self.pack_sts = self.geo.getHeaderElement("<iii")
self.pack_sts3 = (0, 0, 0)
self.pack_weights = self.geo.getHeaderElement("<iii")
self.pack_matidxs = self.geo.getHeaderElement("<iii")
self.pack_grid = self.geo.getHeaderElement("<iii")
self.pack_reductions = (0, 0, 0)
self.pack_reflection_quads = (0, 0, 0)
self.name = extractString(self.geo.header_objname_data, self.name_ptr)
self.autolod_dists = [-1, -1, -1]
self.skipped_data = None
#self.dump()
def parseHeaderData(self):
if self.geo.version <= 2:
self.parseHeaderDataV2()
return
(size, ) = struct.unpack("<i", self.geo.header_data[self.geo.header_offset: self.geo.header_offset + 4])
final_offset = self.geo.header_offset + size
self.geo.header_offset += 4
(self.radius, ) = self.geo.getHeaderElement("<f")
(self.tex_count, self.boneinfo_ptr) = self.geo.getHeaderElement("<ii")
(self.vert_count, self.tri_count) = self.geo.getHeaderElement("<ii")
if self.geo.version >= 8:
(self.reflection_quad_count, ) = self.geo.getHeaderElement("<i")
(self.tex_idx_ptr, ) = self.geo.getHeaderElement("<i")
self.grid_header = self.geo.getHeaderElement("<ifffffii")
(self.name_ptr, self.api_ptr) = self.geo.getHeaderElement("<ii")
self.scale = list(self.geo.getHeaderElement("<fff"))
self.min = list(self.geo.getHeaderElement("<fff"))
self.max = list(self.geo.getHeaderElement("<fff"))
self.pack_tris = self.geo.getHeaderElement("<iii")
self.pack_verts = self.geo.getHeaderElement("<iii")
self.pack_norms = self.geo.getHeaderElement("<iii")
self.pack_sts = self.geo.getHeaderElement("<iii")
self.pack_sts3 = self.geo.getHeaderElement("<iii")
self.pack_weights = self.geo.getHeaderElement("<iii")
self.pack_matidxs = self.geo.getHeaderElement("<iii")
self.pack_grid = self.geo.getHeaderElement("<iii")
if self.geo.version == 4:
#pack.lmap_utransforms, pack.lmap_vtransforms
self.geo.header_offset += 12 * 2
if self.geo.version >= 7:
self.pack_reductions = self.geo.getHeaderElement("<iii")
else:
self.pack_reductions = (0, 0, 0)
if self.geo.version >= 8:
self.pack_reflection_quads = self.geo.getHeaderElement("<iii")
else:
self.pack_reflection_quads = (0, 0, 0)
#pack_list = [
# self.pack_tris,
# self.pack_verts,
# self.pack_norms,
# self.pack_sts,
# self.pack_sts3,
# self.pack_weights,
# self.pack_matidxs,
# self.pack_grid,
# #pack.lmap_utransforms, pack.lmap_vtransforms
# self.pack_reductions,
# self.pack_reflection_quads,
#]
#other_list = [
# self.boneinfo_ptr,
# self.name_ptr,
# self.api_ptr,
#]
#(self.pack_boneinfo, self.pack_name, self.pack_api) = inferSizes(self.geo.main_data_size, pack_list, other_list)
self.name = extractString(self.geo.header_objname_data, self.name_ptr)
#self.geo.header_offset = final_offset - 12 - 2
if self.geo.version <= 7:
#lightmap_size
self.geo.header_offset += 4
if self.geo.version >= 7:
self.autolod_dists = list(self.geo.getHeaderElement("<fff"))
else:
self.autolod_dists = [-1, -1, -1]
#(self.mystery, ) = self.geo.getHeaderElement("<f")
(self.id, ) = self.geo.getHeaderElement("<h")
#self.mystery = self.geo.getHeaderElement("<fh")
#print("automatic offset: %d final offset: %d" % (self.geo.header_offset, final_offset))
self.skipped_data = self.geo.header_data[self.geo.header_offset : final_offset]
self.geo.header_offset = final_offset
def parseData(self):
self.tex_idx = []
texidx_data = self.geo.header_texidx_data
texidx_data.seek(self.tex_idx_ptr)
c = 0
for i in range(self.tex_count):
self.tex_idx.append(texidx_data.decode("<HH"))
c += self.tex_idx[-1][1]
#todo: assert(c == self.tri_count)
self.altpivotinfo = []
if self.api_ptr != 0:
self.geo.seekMainData(self.api_ptr)
(self.altpivotinfo_count, ) = self.geo.getMainElement("<i")
for i in range(self.altpivotinfo_count):
self.altpivotinfo.append([])
for j in range(4):
self.altpivotinfo[i].append(list(self.geo.getMainElement("<fff")))
self.altpivotinfo_count = len(self.altpivotinfo)
self.tris_data = self.geo.getDataBlock(self.pack_tris)
self.verts_data = self.geo.getDataBlock(self.pack_verts)
self.norms_data = self.geo.getDataBlock(self.pack_norms)
self.sts_data = self.geo.getDataBlock(self.pack_sts)
self.sts3_data = self.geo.getDataBlock(self.pack_sts3)
self.weights_data = self.geo.getDataBlock(self.pack_weights)
self.matidxs_data = self.geo.getDataBlock(self.pack_matidxs)
self.grid_data = self.geo.getDataBlock(self.pack_grid)
self.reductions_data = self.geo.getDataBlock(self.pack_reductions)
self.reflection_quads_data = self.geo.getDataBlock(self.pack_reflection_quads)
self.tris = uncompressDeltas(self.tris_data, 3, self.tri_count, "I")
self.verts = uncompressDeltas(self.verts_data, 3, self.vert_count, "f")
self.norms = uncompressDeltas(self.norms_data, 3, self.vert_count, "f")
self.sts = uncompressDeltas(self.sts_data, 2, self.vert_count, "f")
self.sts3 = uncompressDeltas(self.sts3_data, 2, self.vert_count, "f")
if self.boneinfo_ptr != 0:
self.geo.seekMainData(self.boneinfo_ptr)
(self.bone_count, ) = self.geo.getMainElement("<i")
self.bone_ids = self.geo.getMainElement("<" + ("i" * 15))
else:
self.bone_count = 0
self.bone_ids = [0] * 15
if len(self.weights_data) == 0:
self.weights = None
self.weight_bones = None
else:
self.weights = []
self.weight_bones = []
for i in range(self.vert_count):
w = unbyte(self.weights_data[i]) / 255.0
b = self.matidxs_data[i * 2 : i * 2 + 2]
b1 = self.bone_ids[unbyte(b[0]) // 3]
b2 = self.bone_ids[unbyte(b[1]) // 3]
self.weights.append([w, 1 - w])
self.weight_bones.append([b1, b2])
if len(self.grid_data) == 0:
self.polygrid = None
else:
self.polygrid = PolyGrid(self)
self.polygrid.parsePolyGridData(self.grid_data, self.grid_header)
if len(self.reductions_data) == 0:
self.reductions = None
else:
#self.reductions = None
#self.dump()
self.reductions = Reductions(self)
self.reductions.decode(Data(self.reductions_data))
if len(self.reflection_quads_data) == 0:
self.reflection_quads = None
else:
#todo:
self.reflection_quads = None
#if self.geo.version <= 2:
# self.dump()
def packDeltas(self, data, stride, count, pack_type):
deltas = compressDeltas(data, stride, count, pack_type)
pack = self.geo.encodeMainDataPacked(deltas)
def rebuildWeightsAndBones(self):
self.weights_data = b""
self.matidxs_data = b""
if self.weights is None or len(self.weights) == 0:
self.bone_count = 0
self.bone_ids = [0] * 15
return
self.bone_ids = []
bone_lookup = {}
for wb in self.weight_bones:
for wbx in wb:
if wbx not in bone_lookup:
bone_lookup[wbx] = len(self.bone_ids)
self.bone_ids.append(wbx)
#print(self.weights)
for i in range(len(self.weights)):
#Copy values to avoid corruption.
w = self.weights[i][:]
wb = self.weight_bones[i][:]
if len(w) > 2:
#.geos only support 2 weights per vertex.
#todo: get only largest weights?
w = w[0 : 2]
wb = wb[0 : 2]
if len(w) == 1 or wb[0] == wb[1]:
self.weights_data += byte(255)
self.matidxs_data += byte(bone_lookup[wb[0]] * 3) + ZERO_BYTE
continue
if w[0] + w[1] == 0:
w[0] = 0.5
w[1] = 0.5
w[0] = w[0] / float(w[0] + w[1])
if w[0] < 0:
w[0] = 0.0
elif w[0] > 1:
w[0] = 1.0
#print("weights: %s -> %s" % (self.weights[i], w))
self.weights_data += byte(int(math.floor(255 * w[0] + 0.5)))
self.matidxs_data += byte(bone_lookup[wb[0]] * 3) +byte(bone_lookup[wb[1]] * 3)
self.bone_count = len(self.bone_ids)
self.bone_ids += [0] * (15 - self.bone_count)
def encode(self):
#Regenerate dynamic data
if self.verts is not None and len(self.verts) > 0:
self.polygrid = PolyGrid(self)
self.grid_data = self.polygrid.encode()
self.grid_header = self.polygrid.grid_header
self.radius = self.polygrid.radius
self.min = self.polygrid.aabb.min.data
self.max = self.polygrid.aabb.max.data
else:
self.polygrid = None
self.grid_data = b""
self.grid_header = (0, 0.0, 0.0, 0.0, 1.0, 1.0, 0, 0)
self.radius = 0
self.min = [0, 0, 0]
self.max = [0, 0, 0]
if self.geo.version >= 7:
#todo: build reductions
if self.reductions is not None:
self.reductions_data = self.reductions.encode()
else:
self.reductions_data = b""
pass
self.rebuildWeightsAndBones()
#Encode data into the main block.
#note: PackData should go first, otherwise other ptr types might point to the start of the data block, which would result in a 0 point, which is treated as not present.
self.pack_tris = self.geo.encodeMainDataPackedDeltas(self.tris, 3, self.tris and len(self.tris), "I", 1)
self.pack_verts = self.geo.encodeMainDataPackedDeltas(self.verts, 3, self.verts and len(self.verts), "f", 0x8000)
self.pack_norms = self.geo.encodeMainDataPackedDeltas(self.norms, 3, self.norms and len(self.norms), "f", 0x100)
self.pack_sts = self.geo.encodeMainDataPackedDeltas(self.sts, 2, self.sts and len(self.sts), "f", 0x1000)
self.pack_sts3 = self.geo.encodeMainDataPackedDeltas(self.sts3, 2, self.sts3 and len(self.sts3), "f", 0x8000)
self.pack_weights = self.geo.encodeMainDataPacked(self.weights_data)
self.pack_matidxs = self.geo.encodeMainDataPacked(self.matidxs_data)
self.pack_grid = self.geo.encodeMainDataPacked(self.grid_data)
self.pack_reductions = self.geo.encodeMainDataPacked(self.reductions_data)
self.pack_reflection_quads = self.geo.encodeMainDataPacked(self.reflection_quads_data)
if self.bone_count > 0:
bone_data = struct.pack("<" + "i" * (1 + 15), self.bone_count, *self.bone_ids)
bone_data += struct.pack("<ii", 0, 0) #weights_ptr and matidx_ptr place holders, needed by the game
self.boneinfo_ptr = self.geo.encodeMainData(bone_data)
else:
self.boneinfo_ptr
api_data = b""
if len(self.altpivotinfo) > 0:
api_data = struct.pack("<i", len(self.altpivotinfo))
for i in range(len(self.altpivotinfo)):
for j in range(len(self.altpivotinfo[i])):
api_data += struct.pack("<fff", *self.altpivotinfo[i][j])
for i in range(15 - len(self.altpivotinfo)):
api_data += struct.pack("<fff", 0, 0, 0) * 4
if len(api_data) > 0:
self.api_ptr = self.geo.encodeMainData(api_data)
else:
self.api_ptr = 0
#Encode shared header data
self.texidx_ptr = len(self.geo.header_texidx_data)
texidx_data = self.geo.header_texidx_data
texidx_data.seekEnd()
for t in self.tex_idx:
texidx_data.encode("<HH", *t)
self.tex_count = len(self.tex_idx)
self.vert_count = self.verts and len(self.verts) or 0
self.tri_count = self.tris and len(self.tris) or 0
self.name_ptr = len(self.geo.header_objname_data)
self.geo.header_objname_data += self.name + ZERO_BYTE
self.geo.header_objnames.append(self.name)
#Encode the header
self.header_data = b""
self.header_data += struct.pack("<f", self.radius)
self.header_data += struct.pack("<i", self.tex_count)
self.header_data += struct.pack("<i", self.boneinfo_ptr)
self.header_data += struct.pack("<i", self.vert_count)
self.header_data += struct.pack("<i", self.tri_count)
if self.geo.version >= 8:
if self.reflection_quads is None or len(self.reflection_quads):
self.reflection_quads_count = 0
else:
self.reflection_quads_count = len(self.reflection_quads)
self.header_data += struct.pack("<i", self.reflection_quads_count)
pass
self.header_data += struct.pack("<i", self.texidx_ptr)
self.header_data += struct.pack("<ifffffii", *self.grid_header)
self.header_data += struct.pack("<i", self.name_ptr)
self.header_data += struct.pack("<i", self.api_ptr)
self.header_data += struct.pack("<fff", *self.scale)
self.header_data += struct.pack("<fff", *self.min)
self.header_data += struct.pack("<fff", *self.max)
self.header_data += struct.pack("<iii", *self.pack_tris)
self.header_data += struct.pack("<iii", *self.pack_verts)
self.header_data += struct.pack("<iii", *self.pack_norms)
self.header_data += struct.pack("<iii", *self.pack_sts)
self.header_data += struct.pack("<iii", *self.pack_sts3)
self.header_data += struct.pack("<iii", *self.pack_weights)
self.header_data += struct.pack("<iii", *self.pack_matidxs)
self.header_data += struct.pack("<iii", *self.pack_grid)
if self.geo.version == 4:
#pack.lmap_utransforms, pack.lmap_vtransforms
self.header_data += struct.pack("<iiiiii", 0, 0, 0, 0, 0, 0)
if self.geo.version >= 7:
self.header_data += struct.pack("<iii", *self.pack_reductions)
pass
if self.geo.version >= 8:
self.header_data += struct.pack("<iii", *self.pack_reflection_quads)
pass
self.header_data += struct.pack("<fff", *self.autolod_dists)
self.header_data += struct.pack("<h", self.id)
if self.geo.version >= 8:
#Pad to match the alignment of "ModelFormatOnDisk_v8" produced by "GetVrml/output.c"
self.header_data += struct.pack("<h", 0)
self.header_data = struct.pack("<i", len(self.header_data) + 4) + self.header_data
pass
def encodeHeader(self):
self.geo.header_data += self.header_data
def getBoneRoot(self):
if self.bone_count <= 0:
return None
#todo: find the root properly. For now it just grabs the lowest bone id and hopes it's right.
#print("getBoneRoot():")
bid = self.bone_ids[0]
for i in range(self.bone_count):
b = self.bone_ids[i]
#print(" %s : %s" % (bid, b))
if b < bid:
bid = b
return BONES_LIST[bid]
def dump(self):
print(" radius: %s" % self.radius)
print(" tex_count: %s" % self.tex_count)
print(" boneinfo_ptr: %s" % self.boneinfo_ptr)
print(" vert_count: %s" % self.vert_count)
print(" tri_count: %s" % self.tri_count)
print(" name_ptr: %s" % self.name_ptr)
print(" api_ptr: %s" % self.api_ptr)
print(" grid: %s" % (self.grid_header, ))
print(" scale: %s" % self.scale)
print(" min: %s" % self.min)
print(" max: %s" % self.max)
print(" pack_tris: %s" % (self.pack_tris, ))
print(" pack_verts: %s" % (self.pack_verts, ))
print(" pack_norms: %s" % (self.pack_norms, ))
print(" pack_sts: %s" % (self.pack_sts, ))
print(" pack_sts3: %s" % (self.pack_sts3, ))
print(" pack_weights: %s" % (self.pack_weights, ))
print(" pack_matidxs: %s" % (self.pack_matidxs, ))
print(" pack_grid: %s" % (self.pack_grid, ))
#print(" pack_boneinfo: %s" % (self.pack_boneinfo, ))
#print(" pack_name: %s" % (self.pack_name, ))
#print(" pack_api: %s" % (self.pack_api, ))
print(" autolod_dists: %s" % (self.autolod_dists, ))
print(" id: %s" % (self.id, ))
#print(" mystery: %s" % (self.mystery, ))
print(" skipped_data: %s" % ([self.skipped_data], ))
print(" name: %s" % self.name)
#print(" tris_data: %s" % ([self.tris_data], ))
#print(" verts_data: %s" % ([self.verts_data], ))
#print(" sts_data: %s" % ([self.sts_data], ))
#print(" sts3_data: %s" % ([self.sts3_data], ))
#print(" weights_data: %s" % ([self.weights_data], ))
#print(" matidxs_data: %s" % ([self.matidxs_data], ))
#print(" grid_data: %s" % ([self.grid_data], ))
#print(" reductions_data: %s" % ([self.reductions_data], ))
print(" reflection_quads_data: %s" % ([self.reflection_quads_data], ))
print(" tex_idx: %s" % ([self.tex_idx]))
print(" tris: %s" % ([self.tris], ))
print(" verts: %s" % ([self.verts], ))
print(" norms: %s" % ([self.norms], ))
print(" weights: %s" % ([self.weights], ))
print(" weight_bones (matidxs): %s" % ([self.weight_bones], ))
if self.polygrid == None:
print(" grid: None")
else:
print(" grid:")
self.polygrid.dump()
if self.reductions == None:
print(" reductions: None")
else:
self.reductions.dump()
print(" sts: %s" % ([self.sts], ))
print(" sts3: %s" % ([self.sts3], ))
print(" bone_count: %d" % self.bone_count)
print(" bone_ids: %s" % (self.bone_ids, ))
print(" altpivotinfo: %s" % (self.altpivotinfo, ))
for i in range(self.bone_count):
print(" : %s" % (BONES_LIST[self.bone_ids[i]], ))
def saveToGeoMesh(self):
geomesh = GeoMesh()
geomesh.have_uvs = self.sts is not None
geomesh.have_weights = self.weights is not None
for i in range(len(self.verts)):
coord = self.verts[i]
normal = self.norms[i]
if geomesh.have_uvs:
uv = self.sts[i]
else:
uv = (0, 0)
if geomesh.have_weights:
weights = []
#print("verts #: %s weights #: %s weight bones #: %s" % (len(self.verts), len(self.weights), len(self.weight_bones)))
#for k, w in enumerate(self.weights):
w = self.weights[i]
w_bones = self.weight_bones[i]
for j, b in enumerate(w_bones):
if w[j] == 0:
continue
#print("vertex_idx: %s weight_bones: %s" % (i, b, ))
#print(" bone_id: %s" % (self.bone_ids[b], ))
w_name = BONES_LIST[b]
#weights.append((geomesh.getWeightIndex(w_name), w[j]))
geomesh.getWeightIndex(w_name)
weights.append([w_name, w[j]])
else:
weights = []
#print(" weights: %s" % (weights, ))
v = GeoVertex(coord, normal, uv, weights)
geomesh.getGeoVertexIndexNew(v)
texture_indexes = []
for t in self.tex_idx:
texture_indexes += [geomesh.getTextureIndex(self.geo.header_texnames[t[0]])] * t[1]
#print("len(self.verts): %s" % (len(self.verts), ))
#print("len(geomesh.geovertex): %s" % (len(geomesh.geovertex), ))
#print("%s" % (self.tex_idx, ))
#print("%s" % (texture_indexes, ))
for i, t in enumerate(self.tris):
#print(" - %s: %s" % (i, t))
geomesh.addFace([geomesh.geovertex[t[0]], geomesh.geovertex[t[1]], geomesh.geovertex[t[2]]], texture_indexes[i])
return geomesh
def loadFromGeoMesh(self, geomesh):
self.tris = [] #uncompressDeltas(self.tris_data, 3, self.tri_count, "I")
self.verts = [] #uncompressDeltas(self.verts_data, 3, self.vert_count, "f")
self.norms = [] #uncompressDeltas(self.norms_data, 3, self.vert_count, "f")
self.sts = [] #uncompressDeltas(self.sts_data, 2, self.vert_count, "f")
self.sts3 = None #uncompressDeltas(self.sts3_data, 2, self.vert_count, "f")
self.tex_idx = []
self.reductions = None
self.reflection_quads_data = None
self.reflection_quads = None
self.altpivotinfo = []
self.scale = [1.0, 1.0, 1.0]
self.autolod_dists = [-1, -1, -1]
self.id = -2
if geomesh.have_weights:
self.weights = []
self.weight_bones = []
else:
self.weights = None
self.weight_bones = None
geomesh.sortFaces()
#Determine the remap for converting geomesh textures indexes to geo texture indexes.
texture_remap = []
for i in range(len(geomesh.textures)):
texture_remap.append(self.geo.getTextureIndex(geomesh.textures[i]))
#Determine the remap for converting geomesh weight/bones indexes to geo weight/bone indexes.
geomesh.rebuildWeightsList()
weight_remap = {}
for i in range(len(geomesh.weights)):
#weight_remap.append(BONES_LOOKUP.get(geomesh.weights[i], 0))
weight_remap[geomesh.weights[i]] = BONES_LOOKUP.get(geomesh.weights[i], 0)
#print(" '%s' -> %s" % (geomesh.weights[i], weight_remap[geomesh.weights[i]]))
#if len(weight_remap) <= 0:
# weight_remap.append(0)
#Convert vetices to: positions, normals, uvs, weights
for i, v in enumerate(geomesh.geovertex):
self.verts.append(v.coord)
self.norms.append(v.normal)
self.sts.append(v.uv)
if geomesh.have_weights:
weights = v.selectWeights(2)
#print(weights)
if len(weights) == 0:
self.weights.append([1, 0])
self.weight_bones.append([weight_remap[0], weight_remap[0]])
elif len(weights) == 1:
self.weights.append([weights[0][1], 0])
self.weight_bones.append([weight_remap[weights[0][0]], weight_remap[weights[0][0]]])
else:
self.weights.append([weights[0][1], weights[1][1]])
self.weight_bones.append([weight_remap[weights[0][0]], weight_remap[weights[1][0]]])
#Convert faces
texture_index = None
texture_count = 0
for i, t in enumerate(geomesh.face):
self.tris.append(t.vert_indexes)
if texture_index != t.texture_index:
if texture_index is not None:
self.tex_idx.append((texture_remap[texture_index], texture_count))
texture_count = 0
texture_index = t.texture_index
texture_count += 1
if texture_count != 0:
self.tex_idx.append((texture_remap[texture_index], texture_count))
print("self.tex_idx: %s" % (self.tex_idx, ))
class Geo:
def __init__(self):
self.data = b""
self.offset = 0
self.version = -1
self.models = []
self.header_texnames = []
self.header_modelheader_tracklength = 0
pass
def loadFromData(self, data):
self.data = data
self.offset = 0
self.parseData()
pass
def loadFromFile(self, filein):
self.data = filein.read()
self.offset = 0
self.parseData()
pass
def saveToData(self):
self.encode()
return self.data
def saveToFile(self, fileout):
self.encode()
fileout.write(self.data)
def parseData(self):
(ziplen, self.header_size) = struct.unpack("<ii", self.data[self.offset : self.offset + 8])
if self.header_size != 0:
self.version = 0
self.offset += 8
ziplen -= 4
else:
(self.version,
self.header_size) = struct.unpack("<ii", self.data[self.offset + 8: self.offset + 8 + 8])
ziplen -= 12
self.offset += 16
#print("%s" % [self.data[self.offset : self.offset + ziplen]])
self.header_data = zlib.decompress(self.data[self.offset : self.offset + ziplen])#, bufsize = self.header_size)
self.offset += ziplen
if self.version == 0:
self.offset += 4
self.header_offset = 0
(self.main_data_size,
self.texname_blocksize,
self.objname_blocksize,
self.texidx_blocksize) = struct.unpack("<iiii", self.header_data[self.header_offset : self.header_offset + 16])
self.header_offset += 16
if self.version >= 2 and self.version <= 6:
(self.lodinfo_blocksize, ) = struct.unpack("<i", self.header_data[self.header_offset : self.header_offset + 4])
self.header_offset += 4
else:
self.lodinfo_blocksize = 0
self.header_texname_data = self.header_data[self.header_offset : self.header_offset + self.texname_blocksize]
self.header_offset += self.texname_blocksize
self.header_objname_data = self.header_data[self.header_offset : self.header_offset + self.objname_blocksize]
self.header_offset += self.objname_blocksize
self.header_texidx_data = Data(self.header_data[self.header_offset : self.header_offset + self.texidx_blocksize])
self.header_offset += self.texidx_blocksize
self.header_lodinfo_data = self.header_data[self.header_offset : self.header_offset + self.lodinfo_blocksize]
self.header_offset += self.lodinfo_blocksize
self.header_modelheader_data = self.header_data[self.header_offset : self.header_offset + 124 + 4 + 4 + 4 + 4]
self.header_offset += 124 + 4 + 4 + 4 + 4
self.header_texnames = unpackNames(self.header_texname_data)
self.header_objnames = unpackStrings(self.header_objname_data)
self.header_modelheader_name = extractString(self.header_modelheader_data[0:124])
(self.header_modelheader_tracklength, ) = struct.unpack("<f", self.header_modelheader_data[124 + 4: 124 + 4 + 4])
(self.header_modelheader_modelcount, ) = struct.unpack("<i", self.header_modelheader_data[124 + 4 + 4 + 4: 124 + 4 + 4 + 4 + 4])
#print("main offset: %d 0x%x" % (self.offset, self.offset))
self.main_data = self.data[self.offset : self.offset + self.main_data_size]
#print(" %s" % [self.main_data])
self.models = []
#self.dump()
for i in range(self.header_modelheader_modelcount):
self.models.append(Model(self))
self.models[-1].parseHeaderData()
self.models[-1].parseData()
#if i < len(self.header_objnames):
# self.models[-1].name = self.header_objnames[i]
def getHeaderElement(self, fmt):
size = struct.calcsize(fmt)
data = struct.unpack(fmt, self.header_data[self.header_offset : self.header_offset + size])
self.header_offset += size
return data
def getDataBlock(self, tup):
#print("%s" % (tup, ))
(packsize, unpacksize, offset) = tup
if packsize == 0:
return self.main_data[offset : offset + unpacksize]
rawdata = self.main_data[offset : offset + packsize]
#print("%s" % [rawdata])
try:
data = zlib.decompress(rawdata)
except Exception as e:
print("%s" % (tup, ))
print("%s" % [rawdata])
traceback.print_exc()
#data = rawdata
raise e
#todo: sanity check size?
return data
def getTextureIndex(self, texture_name):
if isinstance(texture_name, str):
texture_name = bytes(texture_name, "utf-8")
for i in range(len(self.header_texnames)):
if texture_name == self.header_texnames[i]:
return i
i = len(self.header_texnames)
self.header_texnames.append(texture_name)
return i
def encode(self):
self.data = None
self.version = 8
self.main_data = b""
self.header_data = b""
self.header_objnames = []
self.header_objname_data = b""
self.lodinfo_data = b""
self.header_texidx_data = Data()
#Encode models into main data
for m in self.models:
m.encode()
#Convert remaining data
self.header_texname_data = packNames(self.header_texnames)
#Encode information into header data.
self.header_data += struct.pack("<iiii", len(self.main_data), len(self.header_texname_data), len(self.header_objname_data), len(self.header_texidx_data))
if self.version >= 2 and self.version <= 6:
self.header_data += struct.pack("<i", len(self.lodinfo_data))
self.header_data += self.header_texname_data + self.header_objname_data + self.header_texidx_data.data
if self.version >= 2 and self.version <= 6:
self.header_data += self.lodinfo_data
#Encode the main model header.
self.header_data += storeString(self.header_modelheader_name, 124)
self.header_data += struct.pack("<ifii", 0, self.header_modelheader_tracklength, -1, len(self.models))
#Encode model headers into header data.
for m in self.models:
m.encodeHeader()
zheader_data = zlib.compress(self.header_data)
if self.version == 0:
preheader = struct.pack("<ii", len(zheader_data) + 4, len(self.header_data))
else:
preheader = struct.pack("<iiii", len(zheader_data) + 12, 0, self.version, len(self.header_data))
if self.version == 0:
zheader += struct.pack("<i", 0)
self.data = preheader + zheader_data + self.main_data
def encodeObjName(self, name):
o = len(self.header_objname_data)
self.header_objname_data += name + ZERO_BYTE
self.header_objnames.append(name)
return o
def encodeMainData(self, data):
o = len(self.main_data)
self.main_data += data
return o
def encodeMainDataPacked(self, data):
o = len(self.main_data)
if data is None or len(data) <= 0:
return (0, 0, o)
#todo: minimum compression?
d = zlib.compress(data)
if len(d) >= len(data):
self.main_data += data
return (0, len(data), o)
else:
self.main_data += d
return (len(d), len(data), o)
def encodeMainDataPackedDeltas(self, data, stride, count, pack_type, float_scale):
if data is None:
return (0, 0, 0)
deltas = compressDeltas(data, stride, count, pack_type, float_scale)
pack = self.encodeMainDataPacked(deltas)
return pack
def dump(self):
print("version: %d" % self.version)
print("header_size: expected: %d actual: %d" % (self.header_size, len(self.header_data)))
#print("header_data: %s" % [self.header_data])
print("main_data_size: %d" % self.main_data_size)
print("header_data sizes: texname: %d objname: %d texidx: %d lodinfo: %d" % (self.texname_blocksize, self.objname_blocksize, self.texidx_blocksize, self.lodinfo_blocksize))
print("header_texname_data: %s" % [self.header_texname_data])
print("header_texnames: %s" % [self.header_texnames])
print("header_objname_data: %s" % [self.header_objname_data])
print("header_objnames: %s" % [self.header_objnames])
print("header_texidx_data: %s" % [self.header_texidx_data])
print("header_lodinfo_data: %s" % [self.header_lodinfo_data])
print("header_modelheader_name: %s" % [self.header_modelheader_name])
print("header_modelheader_tracklength: %s" % self.header_modelheader_tracklength)
print("header_modelheader_modelcount: %s" % self.header_modelheader_modelcount)
print("header_modelheader_data: %s" % [self.header_modelheader_data[124:]])
print("header remaining: %d" % ((len(self.header_data) - self.header_offset), ))
print("header remaining: %s" % ([self.header_data[self.header_offset:]], ))
#%d objname: %d texidx: %d lodinfo: %d" % (self.texname_blocksize, self.objname_blocksize, self.texidx_blocksize, self.lodinfo_blocksize)
for i in range(len(self.models)):
print("Model %d:" % (i, ))
self.models[i].dump()
def seekMainData(self, offset):
self.main_data_offset = offset
def skipMainData(self, skip):
if type(skip) is int:
self.main_data_offset += skip
else:
self.main_data_offset += struct.calcsize(skip)
def getMainElement(self, fmt):
size = struct.calcsize(fmt)
data = struct.unpack(fmt, self.main_data[self.main_data_offset : self.main_data_offset + size])
self.main_data_offset += size
return data
def getElement(self, offset, fmt):
size = struct.calcsize(fmt)
data = struct.unpack(fmt, self.main_data[offset : offset + size])
return data
def setName(self, name):
if isinstance(name, str):
name = bytes(name, "utf-8")
self.header_modelheader_name = name
def addModel(self, name):
if isinstance(name, str):
name = bytes(name, "utf-8")
self.models.append(Model(self))
self.models[-1].name = name
return self.models[-1]
if __name__ == "__main__":
if len(sys.argv) <= 1 or len(sys.argv) > 3:
print("Usage:")
print(" %s <file_in> [<file_out>]" % (sys.argv[0], ))
print("Test loads a .geo file, dumps its content, and optionally writes its content out.")
exit(0)
fh = open(sys.argv[1], "rb")
geo = Geo()
geo.loadFromFile(fh)
fh.close()
#print(sys.argv)
if len(sys.argv) <= 2:
fho = None
else:
fho = open(sys.argv[2], "wb")
if fho is not None:
data = geo.saveToData()
#geo.dump()
fho.write(data)
else:
geo.dump()
#print("%s" % [geo.header_data])
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