mirror of
https://github.com/Druthulu/BFM-decomp
synced 2026-09-26 13:33:34 -04:00
Drew T
61 lines
2.7 KiB
Python
61 lines
2.7 KiB
Python
#!/usr/bin/env python3
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"""psyq_libs_from_disc.py — the 20 PsyQ 4.0 `PSX/LIB/*.LIB` files, extracted from the runtime-library disc.
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The EXE links PsyQ 4.0 objects (main's LINKED regions). Sony's libraries are not redistributable and have no
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public download; they are on the redump disc "PlayStation - Programmer Tools - Run-time Library 4.0 (USA)
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(PC-CD ROM Release 2.0)" (DTL-S2002; ISO volume `PROGTOOL`), directory `PSX/LIB/`. This walks that disc's
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Track-1 image with the project's own MODE2/2352 ISO9660 reader (tools/bfm_extract/iso9660.py — the same one
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`make disc-extract` uses on the game disc) and writes the `.LIB` files out, printing each file's sha256 so
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`tools/psyq_CHECKSUMS.sha256` can be checked against them. Called by tools/fetch_psyq.sh --disc. (P33 B4)
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python3 tools/psyq_libs_from_disc.py "<... Run-time Library 4.0 ... (Track 1).bin>" tools/psyq/lib40
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Refuses (R43) a disc without `PSX/LIB` and a directory that does not hold exactly 20 `.LIB` files (R32).
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"""
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import hashlib
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import pathlib
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import sys
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sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent / "bfm_extract"))
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from iso9660 import Iso9660Image, Iso9660Error # noqa: E402
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EXPECTED_LIBS = 20
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def main(argv):
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if len(argv) != 3:
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sys.exit(__doc__)
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binp, out = pathlib.Path(argv[1]), pathlib.Path(argv[2])
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if not binp.is_file():
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sys.exit(f"psyq_libs_from_disc: no such disc image: {binp}")
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out.mkdir(parents=True, exist_ok=True)
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try:
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with Iso9660Image(binp) as img:
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psx = img.find("PSX")
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lib = img.find("LIB", psx) if psx is not None else None
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if lib is None or not lib.is_dir:
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sys.exit(f"psyq_libs_from_disc: no PSX/LIB directory on {binp.name} (volume {img.volume_id!r}) — "
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"expected the Run-time Library 4.0 disc (volume PROGTOOL)")
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n = 0
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for rec in sorted(img.iter_directory(lib), key=lambda r: r.raw_name):
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if rec.is_dir:
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continue
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name = rec.raw_name.split(";")[0]
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if not name.upper().endswith(".LIB"):
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continue
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data = img.extract_file(rec.raw_name, lib)
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(out / name).write_bytes(data)
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print(f"{hashlib.sha256(data).hexdigest()} {out / name} ({len(data)} B)")
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n += 1
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vol = img.volume_id
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except Iso9660Error as e:
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sys.exit(f"psyq_libs_from_disc: {e}")
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print(f"psyq_libs_from_disc: {n} .LIB files -> {out}/ (volume {vol!r})", file=sys.stderr)
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if n != EXPECTED_LIBS:
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sys.exit(f"psyq_libs_from_disc: expected {EXPECTED_LIBS} .LIB files in PSX/LIB, found {n} (R32)")
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return 0
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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