TaikoPythonTools/TaikoWiiUSongTextureTool/generate_nut.py
2024-06-27 03:31:21 +01:00

150 lines
7.0 KiB
Python

import argparse
import os
from PIL import Image
import struct
class TextureSurface:
def __init__(self):
self.mipmaps = []
class NutTexture:
def __init__(self, width, height, pixel_format, pixel_type):
self.surfaces = [TextureSurface()]
self.Width = width
self.Height = height
self.pixelInternalFormat = pixel_format
self.pixelFormat = pixel_type
def add_mipmap(self, mipmap_data):
self.surfaces[0].mipmaps.append(mipmap_data)
@property
def MipMapsPerSurface(self):
return len(self.surfaces[0].mipmaps)
def getNutFormat(self):
if self.pixelInternalFormat == 'RGBA':
return 14
raise NotImplementedError("Only RGBA format is implemented")
class NUT:
def __init__(self):
self.textures = []
def add_texture(self, texture):
self.textures.append(texture)
def save(self, filename):
with open(filename, 'wb') as f:
f.write(self.build())
def build(self):
data = bytearray()
num_textures = len(self.textures)
# File header
header = struct.pack(">IHH", 0x4E545033, 0x0200, num_textures)
data.extend(header)
# Initial offset (0x18 bytes for the header, then 0x4 bytes per texture offset)
texture_offset_base = 0x18 + (0x4 * num_textures)
texture_headers_offset = texture_offset_base
texture_data_offset = texture_headers_offset + (0x50 * num_textures)
# Ensure texture data starts at the correct offset (0x42E0)
texture_data_offset = max(texture_data_offset, 0x4000)
# Offset table
texture_offsets = []
for texture in self.textures:
texture_offsets.append(texture_data_offset)
texture_data_offset += 0x50 + sum(len(mipmap) for mipmap in texture.surfaces[0].mipmaps)
for offset in texture_offsets:
data.extend(struct.pack(">I", offset))
# Texture headers and mipmaps
for texture, offset in zip(self.textures, texture_offsets):
data.extend(self.build_texture_header(texture, offset))
for texture in self.textures:
for mipmap in texture.surfaces[0].mipmaps:
data.extend(mipmap)
return data
def build_texture_header(self, texture, offset):
mipmap_count = texture.MipMapsPerSurface
size = texture.Width * texture.Height * 4 # Texture size
header = struct.pack(">IIIIHHIIII",
size, texture.Width, texture.Height, 0, 0,
mipmap_count, texture.getNutFormat(),
texture.Width, texture.Height, 0)
additional_data = b'\x65\x58\x74\x00\x00\x00\x00\x20\x00\x00\x00\x10\x00\x00\x00\x00' \
b'\x47\x49\x44\x58\x00\x00\x00\x10\x00\x00\x00\x05\x00\x00\x00\x00'
return header + additional_data.ljust(0x50 - len(header), b'\x00')
def modify_nut_file(self, file_path, output_path):
# Set replacement bytes to 00
replacement_bytes = bytes.fromhex(
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
)
with open(file_path, 'rb') as f:
data = bytearray(f.read())
# Replace bytes from 0x00 to 0x1F0
#data[0x00:0x1EF] = replacement_bytes
# Delete bytes from 0x42E0 to 0x42F3 (0x42E0 to 0x42F4 inclusive)
del data[0x42E0:0x42F3]
del data[0x0040:0x0044]
data[0x1F0:0x1F0] = b'\x00\x00\x00\x00'
data[0x008:0x010] = b'\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x010:0x040] = b'\x00\x02\xd0P\x00\x00\x00\x00\x00\x02\xd0\x00\x00P\x00\x00\x00\x01\x00\x0e\x02\xd0\x00@\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x060:0x090] = b'\x00\x04\x92P\x00\x00\x00\x00\x00\x04\x92\x00\x00P\x00\x00\x00\x01\x00\x0e\x02\xd0\x00h\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\xd1\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x0B0:0x0E0] = b'\x00\x02\xd0P\x00\x00\x00\x00\x00\x02\xd0\x00\x00P\x00\x00\x00\x01\x00\x0e\x02\xd0\x00@\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07c@\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x100:0x130] = b'\x00\x02X\x50\x00\x00\x00\x00\x00\x02X\x00\x00P\x00\x00\x00\x01\x00\x0e\x00`\x01\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\n2\xf0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x150:0x180] = b'\x00\x01^P\x00\x00\x00\x00\x00\x01^\x00\x00P\x00\x00\x00\x01\x00\x0e\x00\x38\x01\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x8a\xa0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x1A0:0x1D0] = b'\x00\x01^P\x00\x00\x00\x00\x00\x01^\x00\x00P\x00\x00\x00\x01\x00\x0e\x00\x38\x01\x90\x00\x00\x00\x00\x00\x00\x00\x00\x00\r\xe8P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
data[0x5B:0x5C] = b'\x00'
data[0xAB:0xAC] = b'\x01'
data[0xFB:0xFC] = b'\x02'
data[0x14B:0x14C] = b'\x03'
data[0x19B:0x19C] = b'\x04'
# Add three 0x00 bytes to the end of the file
data.extend(b'\x00\x00\x00')
with open(output_path, 'wb') as f:
f.write(data)
def load_png_to_texture(filepath):
with Image.open(filepath) as img:
img = img.convert("RGBA")
width, height = img.size
mipmap_data = img.tobytes()
texture = NutTexture(width, height, "RGBA", "RGBA")
texture.add_mipmap(mipmap_data)
return texture
def main():
parser = argparse.ArgumentParser(description="Convert a folder of PNGs to a NUT file.")
parser.add_argument("input_folder", help="Folder containing PNG files")
parser.add_argument("output_file", help="Output NUT file")
args = parser.parse_args()
nut = NUT()
for filename in os.listdir(args.input_folder):
if filename.endswith(".png"):
texture = load_png_to_texture(os.path.join(args.input_folder, filename))
nut.add_texture(texture)
# Save the NUT file
nut_filename = args.output_file
nut.save(nut_filename)
# Modify the saved NUT file
output_filename = nut_filename # You can modify this if needed
nut.modify_nut_file(nut_filename, output_filename)
if __name__ == "__main__":
main()