Files
Momentum-Firmware/scripts/asset_packer.py
WillyJL 9e4ff668f4 Asset Packer: Fix font terminator causing freezes/crashes (#295)
* Asset Packer: Fix font terminator causing freezes/crashes

* Update changelog
2024-11-10 06:08:52 +01:00

217 lines
7.6 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 re
import io
import os
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) + 2 < 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 copy_file_as_lf(src: "pathlib.Path", dst: "pathlib.Path"):
dst.write_bytes(src.read_bytes().replace(b"\r\n", b"\n"))
def pack_anim(src: pathlib.Path, dst: pathlib.Path):
if not (src / "meta.txt").is_file():
return
dst.mkdir(parents=True, exist_ok=True)
for frame in src.iterdir():
if not frame.is_file():
continue
if frame.name == "meta.txt":
copy_file_as_lf(frame, dst / frame.name)
elif frame.name.startswith("frame_"):
if frame.suffix == ".png":
(dst / frame.with_suffix(".bm").name).write_bytes(convert_bm(frame))
elif frame.suffix == ".bm":
if not (dst / frame.name).is_file():
shutil.copyfile(frame, dst / frame.name)
def pack_icon_animated(src: pathlib.Path, dst: pathlib.Path):
if not (src / "frame_rate").is_file() and not (src / "meta").is_file():
return
dst.mkdir(parents=True, exist_ok=True)
frame_count = 0
frame_rate = None
size = None
files = [file for file in src.iterdir() if file.is_file()]
for frame in sorted(files, key=lambda x: x.name):
if not frame.is_file():
continue
if frame.name == "frame_rate":
frame_rate = int(frame.read_text().strip())
elif frame.name == "meta":
shutil.copyfile(frame, dst / frame.name)
else:
dst_frame = dst / f"frame_{frame_count:02}.bm"
if frame.suffix == ".png":
if not size:
size = Image.open(frame).size
dst_frame.write_bytes(convert_bm(frame))
frame_count += 1
elif frame.suffix == ".bm":
if frame.with_suffix(".png") not in files:
shutil.copyfile(frame, dst_frame)
frame_count += 1
if size is not None and frame_rate is not None:
(dst / "meta").write_bytes(struct.pack("<IIII", *size, frame_rate, frame_count))
def pack_icon_static(src: pathlib.Path, dst: pathlib.Path):
dst.parent.mkdir(parents=True, exist_ok=True)
if src.suffix == ".png":
dst.with_suffix(".bmx").write_bytes(convert_bmx(src))
elif src.suffix == ".bmx":
if not dst.is_file():
shutil.copyfile(src, dst)
def pack_font(src: pathlib.Path, dst: pathlib.Path):
dst.parent.mkdir(parents=True, exist_ok=True)
if src.suffix == ".c":
code = (
src.read_bytes().split(b' U8G2_FONT_SECTION("')[1].split(b'") =')[1].strip()
)
font = b""
for line in code.splitlines():
if line.count(b'"') == 2:
font += (
line[line.find(b'"') + 1 : line.rfind(b'"')]
.decode("unicode_escape")
.encode("latin_1")
)
font += b"\0"
dst.with_suffix(".u8f").write_bytes(font)
elif src.suffix == ".u8f":
if not dst.is_file():
shutil.copyfile(src, dst)
def pack(
input: "str | pathlib.Path", output: "str | pathlib.Path", logger: typing.Callable
):
input = pathlib.Path(input)
output = pathlib.Path(output)
for source in input.iterdir():
if source == output:
continue
if not source.is_dir() or source.name.startswith("."):
continue
logger(f"Pack: custom user pack '{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
if (source / "Anims/manifest.txt").exists():
(packed / "Anims").mkdir(parents=True, exist_ok=True)
copy_file_as_lf(
source / "Anims/manifest.txt", packed / "Anims/manifest.txt"
)
manifest = (source / "Anims/manifest.txt").read_bytes()
for anim in re.finditer(rb"Name: (.*)", manifest):
anim = (
anim.group(1)
.decode()
.replace("\\", "/")
.replace("/", os.sep)
.replace("\r", "\n")
.strip()
)
logger(f"Compile: anim for pack '{source.name}': {anim}")
pack_anim(source / "Anims" / anim, packed / "Anims" / anim)
if (source / "Icons").is_dir():
for icons in (source / "Icons").iterdir():
if not icons.is_dir() or icons.name.startswith("."):
continue
for icon in icons.iterdir():
if icon.name.startswith("."):
continue
if icon.is_dir():
logger(
f"Compile: icon for pack '{source.name}': {icons.name}/{icon.name}"
)
pack_icon_animated(
icon, packed / "Icons" / icons.name / icon.name
)
elif icon.is_file() and icon.suffix in (".png", ".bmx"):
logger(
f"Compile: icon for pack '{source.name}': {icons.name}/{icon.name}"
)
pack_icon_static(
icon, packed / "Icons" / icons.name / icon.name
)
if (source / "Fonts").is_dir():
for font in (source / "Fonts").iterdir():
if (
not font.is_file()
or font.name.startswith(".")
or font.suffix not in (".c", ".u8f")
):
continue
logger(f"Compile: font for pack '{source.name}': {font.name}")
pack_font(font, packed / "Fonts" / font.name)
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 'asset_packs' 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 / "asset_packs", logger=print)
end = time.perf_counter()
input(f"\nFinished in {round(end - start, 2)}s\n" "Press [Enter] to exit")