mirror of
https://github.com/ClassicWasTaken/HaloCE-SteamFrame.git
synced 2026-10-15 09:00:34 +02:00
71 lines
3.1 KiB
Python
71 lines
3.1 KiB
Python
"""Prepare small Steam artwork renditions from separately obtained originals.
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Requires Pillow only when regenerating these checked-in assets. The installer
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does not download artwork or need Pillow at runtime. Original source attribution
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is recorded in resources/artwork/README.md; originals are not duplicated in the
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executable. No generative artwork is used.
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"""
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from __future__ import annotations
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import argparse
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import hashlib
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from pathlib import Path
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from PIL import Image
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def sha256(path: Path) -> str:
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return hashlib.sha256(path.read_bytes()).hexdigest()
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def main() -> None:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--hero-original", type=Path, required=True)
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parser.add_argument("--logo-original", type=Path, required=True)
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args = parser.parse_args()
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originals = (
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(args.hero_original,
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"e5604c94c66d7a9740b247af4f10ccae674d4c53b44f01a0cec4433b2ca75b21"),
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(args.logo_original,
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"07afdc25f5fe0e11e966ff5e5af2f4adc0196c4ac89b0aeba7df99cc065ab76f"),
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)
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for path, expected in originals:
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if sha256(path) != expected:
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raise ValueError(f"Original source checksum differs: {path.name}")
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repo = Path(__file__).resolve().parents[1]
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destination = repo / "resources" / "artwork"
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destination.mkdir(parents=True, exist_ok=True)
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# Literal, unscaled crop of the original CE press image. This includes the
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# Chief's helmet and upper body at right, leaving the tank at left for
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# Steam's separate transparent title overlay.
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with Image.open(args.hero_original) as source:
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if source.size != (1920, 1440) or source.mode != "RGB":
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raise ValueError("Expected the original 1920x1440 RGB Scorpion image")
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hero = source.crop((0, 480, 1920, 1100))
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hero.save(destination / "halo-ce-hero.jpg", quality=91, optimize=True,
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progressive=True, subsampling=0)
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with Image.open(args.logo_original) as source:
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if source.size != (2459, 1061) or source.mode != "RGBA":
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raise ValueError("Expected the original 2459x1061 RGBA CE title logo")
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if source.getchannel("A").getextrema() != (0, 255):
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raise ValueError("The title logo must retain its transparent background")
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logo = source.resize((1000, 431), Image.Resampling.LANCZOS)
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logo.save(destination / "halo-ce-logo.png", optimize=True)
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# The library's original project drawing is independent of the Windows
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# installer icon. Retain the checked-in rendition instead of copying a
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# replacement installer icon into existing Steam library artwork.
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if sha256(destination / "halo-ce-icon.png") != "184620356407e42a33877528c4f14b702df8b026415a99ed16976565fcfbce36":
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raise ValueError("The existing project-drawn Steam shortcut icon differs")
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for name in ("halo-ce-hero.jpg", "halo-ce-logo.png", "halo-ce-icon.png"):
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path = destination / name
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with Image.open(path) as image:
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print(f"{sha256(path)} {name} {image.width}x{image.height} "
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f"{image.mode} {path.stat().st_size} bytes")
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if __name__ == "__main__":
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main()
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