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VTF.py
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VTF.py
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import importlib
try:
import bpy
except Exception:
bpy = None
import os, sys
import time
import os
def getpath() -> str:
"""
Returns:
str: path to current file
"""
script_file = os.path.realpath(__file__)
return os.path.dirname(script_file)
sys.path.append(getpath())
try:
import progressBar
except:
from . import progressBar
import io
import struct
import squish
import converter
import VTF_DATA
split = lambda A, n=3: [A[i:i + n] for i in range(0, len(A), n)]
def flip(data, x, y, chan):
return [inner for outer in converter.split(list(data), (x * chan))[::-1] for inner in outer]
def convert_pixels(data):
# return list(map(lambda a:a/256,data))
return [a/256 for a in data]
class VTF:
def readASCII(self, len_):
return ''.join([self.readACSIIChar() for _ in range(len_)])
def ReadByte(self):
type_ = 'b'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def readBytes(self, len_):
type_ = 'b'
return [struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0] for _ in range(len_)]
def readUByte(self):
type_ = 'B'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def ReadInt32(self):
type_ = 'i'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def readUInt32(self):
type_ = 'I'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def ReadShort(self):
type_ = 'h'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def readUInt16(self):
type_ = 'H'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def ReadFloat(self):
type_ = 'f'
return struct.unpack(type_, self.data.read(struct.calcsize(type_)))[0]
def readACSIIChar(self):
a = self.readUByte()
return chr(a)
def __init__(self, file: str):
self.file_name = file.split(os.sep)[-1].split('.')[0]
self.data = open(file, 'rb')
self.data.seek(0, io.SEEK_END)
self.filesize = self.data.tell()
self.data.seek(0, io.SEEK_SET)
self.vtf_header = self.readHeader()
self.readFlags()
self.readImage(self.vtf_header.mipmapCount)
# self.import_texture()
def readHeader(self):
vtf_header = VTF_DATA.VTF_HEADER()
vtf_header.signature = ''.join([chr(self.ReadByte()) for _ in range(4)])
vtf_header.version = int(''.join(map(str,[self.ReadInt32() for _ in range(2)])))
vtf_header.headerSize = self.ReadInt32()
vtf_header.width = self.ReadShort()
vtf_header.height = self.ReadShort()
vtf_header.flags = self.ReadInt32()
vtf_header.frames = self.ReadShort()
vtf_header.firstFrame = self.ReadShort()
vtf_header.padding0 = [self.ReadByte() for _ in range(4)]
vtf_header.reflectivity = [self.ReadFloat() for _ in range(3)]
vtf_header.padding1 = [self.ReadByte() for _ in range(4)]
vtf_header.bumpmapScale = self.ReadFloat()
vtf_header.highResImageFormat = self.ReadInt32()
vtf_header.mipmapCount = self.ReadByte()
vtf_header.lowResImageFormat = self.ReadInt32()
vtf_header.lowResImageWidth = self.ReadByte()
vtf_header.lowResImageHeight = self.ReadByte()
if vtf_header.version >71:
vtf_header.depth = self.ReadShort()
vtf_header.padding2 = [self.ReadByte() for _ in range(3)]
vtf_header.numResources = self.ReadInt32()
print(vtf_header.__dict__)
return vtf_header
def readFlags(self):
self.flags = VTF_DATA.VTF_FLAGS.getFlags(self.vtf_header.flags)
@staticmethod
def calcImageSize(width, height, depth, format):
if format == 'DXT5':
return int((width / 4) * (height / 4) * 16 * depth)
if format == 'DXT1':
return int((width / 4) * (height / 4) * 8 * depth)
def readImage(self,mipmapCount):
self.data.seek(self.vtf_header.headerSize)
print(VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name)
print(self.flags)
# if 'NOMIP' in self.flags:
if self.vtf_header.mipmapCount <= 1:
data = self.data.read()
else:
if VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'DXT5':
off = self.calcImageSize(self.vtf_header.width, self.vtf_header.height, self.vtf_header.depth, 'DXT5')
print(off)
self.data.seek(-off, io.SEEK_END)
data = self.data.read()
elif VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'DXT1':
off = self.calcImageSize(self.vtf_header.width, self.vtf_header.height, self.vtf_header.depth, 'DXT1')
print(off)
self.data.seek(-off, io.SEEK_END)
data = self.data.read()
else:
print('kek')
data = self.data.read()
# print(data[:250])
if VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'DXT5':
print('DECOMPRES DXT5')
data = squish.decompressImage(data, self.vtf_header.width, self.vtf_header.height, squish.DXT5)
mode = 'RGBA'
elif VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'DXT3':
print('DECOMPRES DXT3')
data = squish.decompressImage(data, self.vtf_header.width, self.vtf_header.height, squish.DXT3)
mode = 'RGBA'
elif VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'DXT1':
print('DECOMPRES DXT1')
print(len(data))
data = squish.decompressImage(data, self.vtf_header.width, self.vtf_header.height, squish.DXT1)
mode = 'RGBA'
elif VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'RGBA8888':
print('Reading RGBA8888')
mode = 'RGBA'
data = data
# elif VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name == 'RGB888':
# print('Reading RGB888')
# mode = 'RGBA'
# print(len(data))
# a = time.time()
# data = converter.rgb2rgba(data)
# print((time.time()-a)*1000,'ms')
# data = data
else:
raise NotImplementedError('Format {} currently is not supported'.format(
VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name))
# print('DONE DECOMPRESSING')
self.IMAGE = data
self.MODE = mode
# print(len(data))
def import_texture(self):
# from PIL import Image
a = time.time()
acc = []
rows = converter.split(self.IMAGE,self.vtf_header.width*len(self.MODE))[::-1]
for row in rows:
acc.extend(row)
print('Dims',self.vtf_header.width,'x',self.vtf_header.height)
print((time.time()-a)*1000,'ms')
# IMAGE = Image.frombytes(self.MODE, (self.vtf_header.width, self.vtf_header.height), bytes(self.IMAGE))
# IMAGE.save(
# '{}_{}.png'.format(self.file_name, VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name))
image = bpy.data.images.new(self.file_name, width=self.vtf_header.width, height=self.vtf_header.height)
size = len(image.pixels)//8
field = progressBar.Progress_bar('Importing {} texture'.format(self.file_name),8,20)
for n in range(0,len(image.pixels),size):
image.pixels[n:n+size] = converter.convert_pixels(acc[n:n+size])
field.increment(1)
field.draw()
image.pack(as_png = True)
return image
# image.filepath = "//{}_{}.png".format(self.file_name, VTF_DATA.VTF_FORMATS(self.vtf_header.highResImageFormat).name)
# image.file_format = 'PNG'
# image.save()
if __name__ == '__main__':
a = VTF(r"E:\PYTHON\VTF_reader\test_data\xenosoldier_armor_a_n.vtf")
print(a.vtf_header.__dict__)
print(a.flags)
print('SUCCESS')