re: no per-element field on the disc separates the four too-dark frames
The port measures four elements as rendering too dark against the capture -- ptframe1/2 on the main menu, ptframe3/4 on EXTRAS -- with the shortfall correlating +0.77/+0.80 with the BACKGROUND and only +0.24 with the element's own contribution. That is the signature of a blend that scales what is already there. It asked whether the disc selects one. Three examples, one negative, wider than the one I gave last iteration: * frame_alpha_census -- every T8aD sprite on builds 5 and 6 by alpha. It REFUTES the port's own sharpener: 'neither frame has a single fully-opaque pixel, against ptbase's 99.1 %' is true, and pteff10 (max alpha 130, 100 % partial, no opaque pixel) is measured by the port as NEARLY EXACT. So being wholly semi-transparent is not what makes the frames special. * frame_vs_accurate_words -- all 12 T8aD header words for both screens, plus a per-BIT sweep of +0x04 and +0x08. NO word and NO bit puts the four frames on one side and pteff10 on the other. It also kills my own remaining candidate a second time: +0x08 = 0x8050 is shared with pteff21/22/23 on EXTRAS. * frame_keyframe_unknowns -- the keyframe record's fade, tint, rotation and its two unexplained signed words. unknown_4 and unknown_8 are ZERO on every keyframe of both screens, so they carry nothing here; no frame takes a value of any field that another element does not. Reach: the 60-byte declaration entry, the T8aD header word-wise and bit-wise, and the keyframe record. Four elements, two screens. Not the executable's draw path, which is the next commit. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
This commit is contained in:
sylph-decoder
63
docs/re/data/frame-blend-field-hunt.txt
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63
docs/re/data/frame-blend-field-hunt.txt
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# Does ANY per-element field on the disc separate the four too-dark frames from
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# the elements the port renders accurately, on the same two screens?
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# cargo run -p sylpheed-formats --example frame_vs_accurate_words (SYLPHEED_DISC=/disc)
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# and --example frame_keyframe_unknowns
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sprite build +0x04 +0x08 +0x1C +0x2C
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ptbase.t32 5 00008830 00008000 00000006 00000044
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ptbtn01.t32 5 00008130 00008110 00000001 00000030
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ptbtn01f.t32 5 00008130 00008112 00000001 00000030
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ptbtn02.t32 5 00008130 00008110 00000001 00000030
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ptbtn02b.t32 5 00000810 00008110 00000001 00000030
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ptbtn02f.t32 5 00008130 00008112 00000001 00000030
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ptbtn03.t32 5 00008130 00008110 00000001 00000030
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ptbtn03f.t32 5 00008130 00008112 00000001 00000030
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ptbtn04.t32 5 00008130 00008110 00000001 00000030
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ptbtn04f.t32 5 00008130 00008112 00000001 00000030
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ptbtn05.t32 5 00008130 00008110 00000001 00000030
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ptbtn05f.t32 5 00008130 00008112 00000001 00000030
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ptbtneff01.t32 5 00008130 00008112 00000001 00000030
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pteff03.t32 5 00008832 00008010 00000002 00000034
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pteff03a.t32 5 00008832 00008010 00000002 00000034
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pteff05.t32 5 00008830 00008020 0000000F 00000068
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pteff10.t32 5 00008832 00008040 00000002 00000034
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pteff12.t32 5 00008832 00008041 00000004 0000003C
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ptframe1.t32 5 00008832 00008050 00000002 00000034 <- TOO DARK
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ptframe2.t32 5 00008832 00008050 00000004 0000003C <- TOO DARK
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ptmsg.t32 5 00008830 00008100 00000001 00000030
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ptbase.t32 6 00008830 00008000 00000006 00000044
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ptbtn11.t32 6 00008130 00008110 00000001 00000030
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ptbtn11f.t32 6 00008130 00008112 00000002 00000034
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ptbtn12.t32 6 00008130 00008110 00000001 00000030
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ptbtn12f.t32 6 00008130 00008112 00000002 00000034
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ptbtn13.t32 6 00008130 00008110 00000001 00000030
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ptbtn13f.t32 6 00008130 00008112 00000001 00000030
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ptbtneff02.t32 6 00008130 00008112 00000001 00000030
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pteff03.t32 6 00008832 00008010 00000002 00000034
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pteff03a.t32 6 00008832 00008010 00000002 00000034
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pteff05.t32 6 00008830 00008020 0000000F 00000068
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pteff10.t32 6 00008832 00008040 00000002 00000034
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pteff20.t32 6 00008832 00008041 00000004 0000003C
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pteff21.t32 6 00008832 00008050 00000002 00000034
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pteff22.t32 6 00008832 00008050 00000002 00000034
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pteff23.t32 6 00008832 00008050 00000002 00000034
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ptframe3.t32 6 00008832 00008050 00000001 00000030 <- TOO DARK
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ptframe4.t32 6 00008832 00008050 00000001 00000030 <- TOO DARK
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ptmsg2.t32 6 00008830 00008100 00000002 00000034
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pttitle.t32 6 00008830 00008100 00000001 00000030
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words where every ptframe* agrees and NO other sprite takes that value:
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NONE — no header word separates the four frames from the rest
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per-bit check on +0x04 and +0x08 (a bit that is 1 on all frames, 0 on all others):
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NONE
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=== keyframe record: fade / tint / rotation / the two unexplained words ===
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pteff00.prm 6 3 0 0 FF000000 FFFFFFFF 0
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frame keyframes: 28 other keyframes: 116
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unknown_4 frames take {0} others take 1 distinct values; frame-only values: []
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unknown_8 frames take {0} others take 1 distinct values; frame-only values: []
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fade frames take {16777215, 2164260863, 3238002687, 4294967295} others take 7 distinct values; frame-only values: []
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tint frames take {4294967295} others take 1 distinct values; frame-only values: []
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rotation frames take {0} others take 1 distinct values; frame-only values: []
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55
docs/re/data/menu-sprite-alpha-census.txt
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docs/re/data/menu-sprite-alpha-census.txt
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# Alpha census of every T8aD sprite on GP_TITLE builds 5 (main menu) and 6 (EXTRAS).
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# cargo run -p sylpheed-formats --example frame_alpha_census (SYLPHEED_DISC=/disc)
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#
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# Why: the port measures ptframe1/2 (menu) and ptframe3/4 (EXTRAS) as the only
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# elements whose render is too DARK against the capture, and proposed that being
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# WHOLLY SEMI-TRANSPARENT -- 'neither frame has a single fully-opaque pixel,
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# against ptbase's 99.1 %' -- is what makes them special.
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#
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# REFUTED by this census: pteff10 has max alpha 130, 100 % partial, no opaque
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# pixel either, and the port measures it as NEARLY EXACT. pteff12/20/21/22/23
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# are the same. The property is real and it is not the discriminator.
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=== GP_TITLE build 5 ===
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ptbase.t32 640x360 px=230400 a=0: 0.0% a=255: 99.1% max=255 partial(1..254)/nonzero= 0.9% top:[255x228404 240x1988 225x4 244x4]
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ptbtn01.t32 203x43 px=8729 a=0: 58.0% a=255: 21.7% max=255 partial(1..254)/nonzero= 48.4% top:[255x1893 128x273 187x204 34x158 162x126]
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ptbtn01f.t32 216x56 px=12096 a=0: 13.5% a=255: 17.0% max=255 partial(1..254)/nonzero= 80.4% top:[255x2052 99x399 156x395 2x313 56x279]
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ptbtn02.t32 217x43 px=9331 a=0: 60.1% a=255: 21.0% max=255 partial(1..254)/nonzero= 47.2% top:[255x1964 128x318 187x188 34x185 162x157]
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ptbtn02b.t32 217x43 px=9331 a=0: 60.1% a=255: 21.0% max=255 partial(1..254)/nonzero= 47.2% top:[255x1964 128x318 187x188 34x185 162x157]
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ptbtn02f.t32 230x56 px=12880 a=0: 14.2% a=255: 16.0% max=255 partial(1..254)/nonzero= 81.4% top:[255x2058 99x444 156x442 2x355 56x304]
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ptbtn03.t32 178x43 px=7654 a=0: 61.4% a=255: 20.8% max=255 partial(1..254)/nonzero= 46.0% top:[255x1595 128x243 119x154 187x154 60x142]
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ptbtn03f.t32 191x56 px=10696 a=0: 15.7% a=255: 15.4% max=255 partial(1..254)/nonzero= 81.8% top:[255x1643 156x397 99x385 2x332 56x292]
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ptbtn04.t32 159x43 px=6837 a=0: 58.7% a=255: 22.5% max=255 partial(1..254)/nonzero= 45.7% top:[255x1535 128x221 119x165 187x152 60x147]
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ptbtn04f.t32 172x56 px=9632 a=0: 13.1% a=255: 16.4% max=255 partial(1..254)/nonzero= 81.1% top:[255x1579 156x347 99x330 2x318 56x257]
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ptbtn05.t32 150x43 px=6450 a=0: 59.2% a=255: 21.6% max=255 partial(1..254)/nonzero= 47.1% top:[255x1393 128x212 34x113 187x99 119x94]
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ptbtn05f.t32 163x56 px=9128 a=0: 13.5% a=255: 15.8% max=255 partial(1..254)/nonzero= 81.8% top:[255x1441 156x323 99x321 2x310 9x241]
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ptbtneff01.t32 42x46 px=1932 a=0: 24.1% a=255: 2.5% max=255 partial(1..254)/nonzero= 96.7% top:[1x98 2x59 255x48 5x35 3x33]
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pteff03.t32 399x180 px=71820 a=0: 0.0% a=255: 0.3% max=255 partial(1..254)/nonzero= 99.7% top:[3x720 6x720 1x720 13x716 254x712]
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pteff03a.t32 399x180 px=71820 a=0: 0.0% a=255: 0.3% max=255 partial(1..254)/nonzero= 99.7% top:[3x720 6x720 1x720 13x716 254x712]
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pteff05.t32 1280x720 px=921600 a=0: 0.5% a=255: 82.4% max=255 partial(1..254)/nonzero= 17.2% top:[255x759007 254x16439 253x10207 248x7686 250x7584]
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pteff10.t32 409x144 px=58896 a=0: 0.0% a=255: 0.0% max=130 partial(1..254)/nonzero=100.0% top:[2x864 3x864 5x864 1x864 125x852]
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pteff12.t32 347x360 px=124920 a=0: 16.8% a=255: 0.0% max=142 partial(1..254)/nonzero=100.0% top:[1x14618 4x5325 6x4219 3x4093 8x3429]
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ptframe1.t32 247x281 px=69407 a=0: 92.7% a=255: 0.0% max=173 partial(1..254)/nonzero=100.0% top:[7x555 1x217 8x191 99x130 86x116]
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ptframe2.t32 257x311 px=79927 a=0: 93.2% a=255: 0.0% max=174 partial(1..254)/nonzero=100.0% top:[7x689 96x311 76x270 8x232 98x161]
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ptmsg.t32 223x38 px=8474 a=0: 48.6% a=255: 19.7% max=255 partial(1..254)/nonzero= 61.8% top:[255x1667 230x256 248x62 76x54 231x48]
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=== GP_TITLE build 6 ===
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ptbase.t32 640x360 px=230400 a=0: 0.0% a=255: 99.1% max=255 partial(1..254)/nonzero= 0.9% top:[255x228404 240x1988 225x4 244x4]
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ptbtn11.t32 253x43 px=10879 a=0: 59.2% a=255: 21.4% max=255 partial(1..254)/nonzero= 47.5% top:[255x2330 187x362 128x327 60x275 34x122]
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ptbtn11f.t32 266x56 px=14896 a=0: 13.0% a=255: 16.8% max=255 partial(1..254)/nonzero= 80.6% top:[255x2509 156x553 99x537 2x467 9x379]
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ptbtn12.t32 248x43 px=10664 a=0: 59.1% a=255: 21.9% max=255 partial(1..254)/nonzero= 46.4% top:[255x2338 128x373 187x269 60x201 34x124]
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ptbtn12f.t32 261x56 px=14616 a=0: 12.8% a=255: 17.2% max=255 partial(1..254)/nonzero= 80.3% top:[255x2508 156x536 99x521 2x457 56x366]
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ptbtn13.t32 109x43 px=4687 a=0: 59.3% a=255: 22.3% max=255 partial(1..254)/nonzero= 45.3% top:[255x1044 128x189 119x75 34x69 187x61]
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ptbtn13f.t32 122x56 px=6832 a=0: 14.8% a=255: 15.8% max=255 partial(1..254)/nonzero= 81.4% top:[255x1081 2x228 99x225 156x224 9x166]
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ptbtneff02.t32 42x46 px=1932 a=0: 24.1% a=255: 2.5% max=255 partial(1..254)/nonzero= 96.7% top:[1x98 2x59 255x48 5x35 3x33]
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pteff03.t32 399x180 px=71820 a=0: 0.0% a=255: 0.3% max=255 partial(1..254)/nonzero= 99.7% top:[3x720 6x720 1x720 13x716 254x712]
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pteff03a.t32 399x180 px=71820 a=0: 0.0% a=255: 0.3% max=255 partial(1..254)/nonzero= 99.7% top:[3x720 6x720 1x720 13x716 254x712]
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pteff05.t32 1280x720 px=921600 a=0: 0.5% a=255: 82.4% max=255 partial(1..254)/nonzero= 17.2% top:[255x759007 254x16439 253x10207 248x7686 250x7584]
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pteff10.t32 409x144 px=58896 a=0: 0.0% a=255: 0.0% max=130 partial(1..254)/nonzero=100.0% top:[2x864 3x864 5x864 1x864 125x852]
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pteff20.t32 309x259 px=80031 a=0: 16.9% a=255: 0.0% max=218 partial(1..254)/nonzero=100.0% top:[1x7899 4x3317 2x2390 6x2076 8x1215]
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pteff21.t32 403x6 px=2418 a=0: 0.4% a=255: 0.0% max=200 partial(1..254)/nonzero=100.0% top:[16x522 136x502 200x502 2x32 15x30]
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pteff22.t32 423x7 px=2961 a=0: 54.1% a=255: 0.0% max=200 partial(1..254)/nonzero=100.0% top:[4x80 16x58 2x54 1x54 3x52]
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pteff23.t32 441x7 px=3087 a=0: 56.8% a=255: 0.0% max=200 partial(1..254)/nonzero=100.0% top:[4x75 2x59 1x59 3x56 16x47]
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ptframe3.t32 246x220 px=54120 a=0: 93.3% a=255: 0.0% max=248 partial(1..254)/nonzero=100.0% top:[146x150 2x135 142x89 123x86 122x78]
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ptframe4.t32 256x210 px=53760 a=0: 93.3% a=255: 0.0% max=247 partial(1..254)/nonzero=100.0% top:[2x135 146x124 142x109 108x77 121x68]
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ptmsg2.t32 354x38 px=13452 a=0: 50.8% a=255: 15.7% max=255 partial(1..254)/nonzero= 68.1% top:[255x2112 230x448 248x116 76x89 231x88]
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pttitle.t32 182x34 px=6188 a=0: 51.6% a=255: 32.5% max=255 partial(1..254)/nonzero= 32.8% top:[255x2013 68x372 187x130 119x80 238x66]
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