mirror of
https://github.com/cainan-c/TaikoPythonTools.git
synced 2024-11-13 18:10:54 +01:00
216 lines
8.3 KiB
Python
216 lines
8.3 KiB
Python
import argparse
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import os
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import struct
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import subprocess
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#from PIL import Image
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class TextureSurface:
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def __init__(self):
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self.mipmaps = []
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class NutTexture:
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def __init__(self, width, height, pixel_format, pixel_type):
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self.surfaces = [TextureSurface()]
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self.Width = width
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self.Height = height
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self.pixelInternalFormat = pixel_format
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self.pixelFormat = pixel_type
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self.HashId = 0
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def add_mipmap(self, mipmap_data):
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self.surfaces[0].mipmaps.append(mipmap_data)
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@property
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def MipMapsPerSurface(self):
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return len(self.surfaces[0].mipmaps)
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def getNutFormat(self):
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if self.pixelInternalFormat == 'CompressedRgbaS3tcDxt1Ext':
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return 0
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elif self.pixelInternalFormat == 'CompressedRgbaS3tcDxt3Ext':
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return 1
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elif self.pixelInternalFormat == 'CompressedRgbaS3tcDxt5Ext':
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return 2
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elif self.pixelInternalFormat == 'RGBA':
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if self.pixelFormat == 'RGBA':
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return 14
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elif self.pixelFormat == 'ABGR':
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return 16
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else:
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return 17
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else:
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raise NotImplementedError(f"Unknown pixel format {self.pixelInternalFormat}")
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class NUT:
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def __init__(self):
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self.textures = []
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self.endian = 'big'
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self.version = 0x0200
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def add_texture(self, texture):
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self.textures.append(texture)
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def save(self, filename):
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with open(filename, 'wb') as f:
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f.write(self.build())
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def build(self):
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o = bytearray()
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data = bytearray()
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if self.endian == 'big':
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o.extend(struct.pack('>I', 0x4E545033)) # NTP3
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else:
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o.extend(struct.pack('>I', 0x4E545744)) # NTWD
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if self.version > 0x0200:
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self.version = 0x0200
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o.extend(struct.pack('>H', self.version))
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num_textures = len(self.textures)
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if num_textures != 1 and num_textures != 6:
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raise ValueError("The number of images must be either 1 or 6.")
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o.extend(struct.pack('>H', num_textures))
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o.extend(b'\x00' * 8) # Reserved space
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header_length = 0
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for texture in self.textures:
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surface_count = len(texture.surfaces)
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is_cubemap = surface_count == 6
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if surface_count < 1 or surface_count > 6:
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raise NotImplementedError(f"Unsupported surface amount {surface_count} for texture. 1 to 6 faces are required.")
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if surface_count > 1 and surface_count < 6:
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raise NotImplementedError(f"Unsupported cubemap face amount for texture. Six faces are required.")
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mipmap_count = len(texture.surfaces[0].mipmaps)
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header_size = 0x50 + (0x10 if is_cubemap else 0) + (mipmap_count * 4 if mipmap_count > 1 else 0)
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header_size = (header_size + 0xF) & ~0xF # Align to 16 bytes
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header_length += header_size
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for texture in self.textures:
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surface_count = len(texture.surfaces)
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is_cubemap = surface_count == 6
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mipmap_count = len(texture.surfaces[0].mipmaps)
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data_size = sum((len(mipmap) + 0xF) & ~0xF for mipmap in texture.surfaces[0].mipmaps)
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header_size = 0x50 + (0x10 if is_cubemap else 0) + (mipmap_count * 4 if mipmap_count > 1 else 0)
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header_size = (header_size + 0xF) & ~0xF
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o.extend(struct.pack('>I', data_size + header_size))
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o.extend(b'\x00' * 4) # Padding
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o.extend(struct.pack('>I', data_size))
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o.extend(struct.pack('>H', header_size))
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o.extend(b'\x00' * 2) # Padding
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o.extend(b'\x00')
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o.extend(struct.pack('B', mipmap_count))
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o.extend(b'\x00')
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o.extend(struct.pack('B', texture.getNutFormat()))
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o.extend(struct.pack('>HH', texture.Width, texture.Height))
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o.extend(b'\x00' * 4) # Padding
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o.extend(struct.pack('>I', 0)) # DDS Caps2 placeholder
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if self.version >= 0x0200:
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o.extend(struct.pack('>I', header_length + len(data)))
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else:
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o.extend(b'\x00' * 4) # Padding
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header_length -= header_size
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o.extend(b'\x00' * 12) # Reserved space
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if is_cubemap:
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o.extend(struct.pack('>II', len(texture.surfaces[0].mipmaps[0]), len(texture.surfaces[0].mipmaps[0])))
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o.extend(b'\x00' * 8) # Padding
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if texture.getNutFormat() == 14 or texture.getNutFormat() == 17:
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self.swap_channel_order_down(texture)
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for surface in texture.surfaces:
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for mipmap in surface.mipmaps:
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mip_start = len(data)
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data.extend(mipmap)
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while len(data) % 0x10 != 0:
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data.extend(b'\x00')
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if mipmap_count > 1:
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mip_end = len(data)
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o.extend(struct.pack('>I', mip_end - mip_start))
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while len(o) % 0x10 != 0:
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o.extend(b'\x00')
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if texture.getNutFormat() == 14 or texture.getNutFormat() == 17:
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self.swap_channel_order_up(texture)
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o.extend(b'\x65\x58\x74\x00') # "eXt\0"
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o.extend(struct.pack('>II', 0x20, 0x10))
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o.extend(b'\x00' * 4)
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o.extend(b'\x47\x49\x44\x58') # "GIDX"
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o.extend(struct.pack('>I', 0x10))
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o.extend(struct.pack('>I', texture.HashId)) # Texture ID
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o.extend(b'\x00' * 4)
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o.extend(data)
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return o
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def swap_channel_order_down(self, texture):
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for surface in texture.surfaces:
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for i, mipmap in enumerate(surface.mipmaps):
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mipmap = bytearray(mipmap)
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for j in range(0, len(mipmap), 4):
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mipmap[j], mipmap[j + 2] = mipmap[j + 2], mipmap[j]
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surface.mipmaps[i] = bytes(mipmap)
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def swap_channel_order_up(self, texture):
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for surface in texture.surfaces:
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for i, mipmap in enumerate(surface.mipmaps):
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mipmap = bytearray(mipmap)
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for j in range(0, len(mipmap), 4):
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mipmap[j], mipmap[j + 2] = mipmap[j + 2], mipmap[j]
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surface.mipmaps[i] = bytes(mipmap)
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def nvcompress_png_to_dds(png_filepath, dds_filepath, format_option):
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format_map = {
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'dxt1': '-bc1a',
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'dxt3': '-bc2',
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'dxt5': '-bc3',
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}
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format_arg = format_map.get(format_option.lower(), '-bc1')
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command = f"nvcompress {format_arg} {png_filepath} {dds_filepath}"
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subprocess.run(command, shell=True, check=True)
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def load_dds_to_texture(dds_filepath, index, pixel_format):
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DDS_HEADER_SIZE = 128 # DDS header size in bytes
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with open(dds_filepath, 'rb') as dds_file:
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dds_data = dds_file.read()
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print(f"Length of dds_data: {len(dds_data)}")
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print(f"Bytes from 12 to 20: {dds_data[12:20]}")
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width, height = struct.unpack_from('<II', dds_data, 12)[:2]
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texture = NutTexture(height, width, pixel_format, pixel_format)
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texture.add_mipmap(dds_data[DDS_HEADER_SIZE:]) # Skip the DDS header
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texture.HashId = index # Set HashId based on the index
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return texture
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def generate_nut_from_pngs(png_folder, output_nut_path, format_option):
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nut = NUT()
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png_files = [f for f in os.listdir(png_folder) if f.lower().endswith('.png')]
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for index, png_file in enumerate(png_files):
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png_path = os.path.join(png_folder, png_file)
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dds_path = os.path.splitext(png_path)[0] + '.dds'
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nvcompress_png_to_dds(png_path, dds_path, format_option)
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texture = load_dds_to_texture(dds_path, index, f'CompressedRgbaS3tc{format_option.capitalize()}Ext')
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nut.add_texture(texture)
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nut.save(output_nut_path)
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def main():
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parser = argparse.ArgumentParser(description='Generate NUT file from PNG files.')
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parser.add_argument('input_folder', type=str, help='Input folder containing PNG files.')
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parser.add_argument('output_file', type=str, help='Output NUT file.')
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parser.add_argument('--format', type=str, default='dxt5', choices=['dxt1', 'dxt3', 'dxt5'], help='Texture compression format.')
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args = parser.parse_args()
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generate_nut_from_pngs(args.input_folder, args.output_file, args.format)
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if __name__ == '__main__':
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main()
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