43dba9d6e0
its timing is on the disc Q7. Every title-side screen carries a full-screen black .prm quad that paints last, and its keyframe group IS the transition: black at T0, clear by T1, clear until T2, then back to black on exit. Read with the corpus's start-of-a-ramp rule and Q1's time unit that gives 0.87s for EXTRAS, 0.97s for the main menu, 4.08s for the title -- from the file, not from a stopwatch. The disc-wide check is per-pak all-or-nothing rather than the 41% the headline count suggests, and GP_TITLE's 6 of 12 is the useful row: the six builds carrying a fade quad are exactly the six SCREENS, and the six without are exactly the six overlays. GP_DIALOG is 0 of 133. That is independent corroboration of the overlay finding from two iterations ago. One piece is NOT on the disc and says so: the fade-OUT length. The fourth keyframe has no time slot, because a group's last block stops four bytes short. Measured instead, at 30fps, ~0.4s and the same both directions. And a warning I earned: the luminance rise after a transition is NOT the quad's ramp. The incoming screen's own elements animate in after the quad has cleared -- 1.47s observed against a declared 0.97s. Time the fade from where the frame is pure black. Rig: screenshot samples at 0.5 Hz and cannot see a 0.4s fade at all, which is why an earlier burst called this an instant cut. ffmpeg x11grab at 30fps instead; both go in METHOD.
53 lines
2.2 KiB
Python
Executable File
53 lines
2.2 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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sys.path.insert(0, "/work/Syplheed-Reborn/tools/re-capture")
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src = open("/work/Syplheed-Reborn/tools/re-capture/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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t=(be32(bundle,blk+36) if blk+40<=end else None)))
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groups[idx]=g; pos=end
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return names, groups
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pak = os.environ.get("PAK", "/work/sylph_extract/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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want = [int(a) for a in sys.argv[1:]] or [2,4,5,6]
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for b in want:
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names, groups = parse(E[BUILDS[b]])
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print(f"=== build {b} ===")
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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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