18f3c5d3dd
sylpheed-port found the fifth member of our error family on their own side: their "visible" test counted any element with alpha > 0, which includes palogo_eff0. Verified from the disc rather than accepted -- entry 10 [0] palogo_eff0.prm 1 kf t=0 fade=0xff000000 scale=100x100 pos=(0,0) entry 11 same Alpha 255 over RGB 000000: full-screen opaque black, drawn from t=0 and showing nothing. So "any element drawn" reports these screens visible from t=0 while the frame is black -- "visible" read as "drawn". Worth having on its own: this verifies from the disc the premise behind `screen render --black`, which its own help states as "what the game composites over on a screen carrying its own background". On the splash builds that background is DECLARED, not assumed. METHOD gains their amendment, which is the sharpest formulation either of us reached this week: all five instances are a failure of a NOUN, not of a number. Extent, bounding box, duration, span, visible. The number was always correct FOR SOMETHING; what went missing was which thing. Every other check in that file tests whether a number is right, and not one tests whether it is a number of the thing you think. Also teaches fade_quads.py to address a PAK ENTRY directly (`e10`) rather than only a build ordinal. The splashes are entries 10/11 and are not screen builds, so no ordinal addresses them -- and writing `e10` states which index space is meant, which is the standing lesson of build-ordinal-vs-entry.md. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
74 lines
3.5 KiB
Python
Executable File
74 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Dump every `.prm` primitive's keyframe group (alpha + time) for a UI build.
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The screen-transition fade lives here -- see docs/re/screen-transitions.md.
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Usage: PAK=<pak> fade_quads.py [build...] (default: GP_TITLE, builds 2 4 5 6)"""
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import struct, sys, glob, os, zlib
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# The monorepo migration left this pointing at /work/Syplheed-Reborn, a path
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# that no longer exists -- so the command screen-transitions.md cites as its
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# evidence could not be re-run. Resolve beside this file instead.
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_SD = os.path.dirname(os.path.abspath(__file__))
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sys.path.insert(0, _SD)
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src = open(os.path.join(_SD, "regn_decode.py")).read()
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exec(src.split("# ── POF0")[0])
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DECL_AT, DECL_ENTRY, KF = 0x20, 60, 40
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def be32(b,o): return struct.unpack_from(">I", b, o)[0]
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def parse(bundle):
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n = be32(bundle, 0x14)
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names=[]
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for i in range(n):
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o = DECL_AT + i*DECL_ENTRY
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names.append(bundle[o:o+28].split(b"\0")[0].decode("ascii","replace"))
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groups={}
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pos = DECL_AT + n*DECL_ENTRY
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for _ in range(n):
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if pos+8 > len(bundle): break
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idx = be32(bundle,pos); frames = be32(bundle,pos+4)
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if idx>=n or frames==0 or frames>4096: break
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first = pos+12; end = first + frames*KF - 4
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g=[]
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for k in range(frames):
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blk = first + k*KF
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if blk+36 > len(bundle) or blk+36 > end: break
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g.append(dict(fade=be32(bundle,blk), sx=be32(bundle,blk+16), sy=be32(bundle,blk+20),
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x=struct.unpack_from(">i",bundle,blk+28)[0], y=struct.unpack_from(">i",bundle,blk+32)[0],
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# A POSE'S TIME PRECEDES IT (ui-keyframe-record-layout.md).
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# This read `blk+36` -- the NEXT record's time word --
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# which shifted every time by one slot and left the
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# last pose untimed. That stale association is what
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# made screen-transitions.md print a 0.87-4.08 s
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# fade-in and an untimed fade-out. Corrected 2026-08-30.
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t=be32(bundle,blk-4)))
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groups[idx]=g; pos=end
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return names, groups
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# ...and the default pak pointed at /work/sylph_extract, which the disc mount
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# replaced. $SYLPHEED_DISC is what run-canary and sylpheed-cli both use.
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pak = os.environ.get("PAK") or os.path.join(
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os.environ.get("SYLPHEED_DISC", "/disc"), "dat", "GP_TITLE.pak")
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E = pak_entries(pak)
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E = [b for h,b in E]
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# build index -> pak entry index, from `screen list`: 0..9 then 12, 15
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BUILDS = {0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,8:8,9:9,10:12,11:15}
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# An argument may be a BUILD ordinal (mapped through BUILDS) or, prefixed with
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# `e`, a raw PAK ENTRY -- the splashes are entries 10/11 and are NOT screen
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# builds, so no build ordinal addresses them. Writing `e10` says which index
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# space is meant, which is the whole lesson of build-ordinal-vs-entry.md.
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want = sys.argv[1:] or ["2","4","5","6"]
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for arg in want:
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if str(arg).startswith("e"):
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idx = int(str(arg)[1:]); label = f"entry {idx}"
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else:
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idx = BUILDS[int(arg)]; label = f"build {arg} (entry {idx})"
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names, groups = parse(E[idx])
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print(f"=== {label} ===")
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for i,nm in enumerate(names):
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if not nm.endswith(".prm"): continue
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g = groups.get(i, [])
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print(f" [{i}] {nm} {len(g)} kf")
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for k in g:
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a=(k['fade']>>24)&0xff
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print(f" t={str(k['t']):>5} fade=0x{k['fade']:08x} (alpha {a:3d}) scale={k['sx']}x{k['sy']} pos=({k['x']},{k['y']})")
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