Files
Momentum-Firmware/scripts/asset_packer.py

119 lines
3.9 KiB
Python
Executable File

#!/usr/bin/env python
from PIL import Image, ImageOps
import heatshrink2
import pathlib
import shutil
import struct
import typing
import time
import io
def convert_bm(img: "Image.Image | pathlib.Path") -> bytes:
if not isinstance(img, Image.Image):
img = Image.open(img)
with io.BytesIO() as output:
img = img.convert("1")
img = ImageOps.invert(img)
img.save(output, format="XBM")
xbm = output.getvalue()
f = io.StringIO(xbm.decode().strip())
data = f.read().strip().replace("\n", "").replace(" ", "").split("=")[1][:-1]
data_str = data[1:-1].replace(",", " ").replace("0x", "")
data_bin = bytearray.fromhex(data_str)
data_encoded_str = heatshrink2.compress(data_bin, window_sz2=8, lookahead_sz2=4)
data_enc = bytearray(data_encoded_str)
data_enc = bytearray([len(data_enc) & 0xFF, len(data_enc) >> 8]) + data_enc
if len(data_enc) < len(data_bin) + 1:
return b"\x01\x00" + data_enc
else:
return b"\x00" + data_bin
def convert_bmx(img: "Image.Image | pathlib.Path") -> bytes:
if not isinstance(img, Image.Image):
img = Image.open(img)
data = struct.pack("<II", *img.size)
data += convert_bm(img)
return data
def pack(
input: "str | pathlib.Path", output: "str | pathlib.Path", logger: typing.Callable
):
input = pathlib.Path(input)
output = pathlib.Path(output)
output.mkdir(parents=True, exist_ok=True)
for source in input.iterdir():
if source == output:
continue
if not source.is_dir():
continue
logger(f"Packing {source.name}... ")
packed = output / source.name
if packed.exists():
try:
if packed.is_dir():
shutil.rmtree(packed, ignore_errors=True)
else:
packed.unlink()
except Exception:
pass
packed.mkdir(parents=True, exist_ok=True)
if (source / "Anims/manifest.txt").exists():
(packed / "Anims").mkdir(parents=True, exist_ok=True)
shutil.copyfile(
source / "Anims/manifest.txt", packed / "Anims/manifest.txt"
)
for anim in (source / "Anims").iterdir():
if not anim.is_dir():
continue
(packed / "Anims" / anim.name).mkdir(parents=True, exist_ok=True)
for frame in anim.iterdir():
if not frame.is_file():
continue
if frame.name == "meta.txt":
shutil.copyfile(
frame, packed / "Anims" / anim.name / "meta.txt"
)
elif frame.name.startswith("frame_"):
(
packed / "Anims" / anim.name / frame.with_suffix(".bm").name
).write_bytes(convert_bm(frame))
if (source / "Icons").is_dir():
for icons in (source / "Icons").iterdir():
if not icons.is_dir():
continue
(packed / "Icons" / icons.name).mkdir(parents=True, exist_ok=True)
for icon in icons.iterdir():
if not icon.is_file():
continue
(
packed / "Icons" / icons.name / icon.with_suffix(".bmx").name
).write_bytes(convert_bmx(icon))
if __name__ == "__main__":
input(
"This will look through all the subfolders next to this file and try to pack them\n"
"The resulting asset packs will be saved to 'dolphin_custom' in this folder\n"
"Press [Enter] if you wish to continue"
)
print()
here = pathlib.Path(__file__).absolute().parent
start = time.perf_counter()
pack(here, here / "dolphin_custom", logger=print)
end = time.perf_counter()
input(f"\nFinished in {round(end - start, 2)}s\n" "Press [Enter] to exit")