3f114a28af
Applying my own lesson to my own corpus rather than only stating it. I
exported the content-hash patch and stopped; auditing the docs for
"/canary sha" citations found three pages naming d90d14e02, and checking
/canary's history found the exposure is four commits deep, not one.
Bounded by measurement rather than guess: branch -r --contains puts
590912722 on origin/sylpheed-re and finds no remote for anything after it,
so the container-only stack is exactly these four.
0f920e645 blend= per draw <- the ENTIRE blend decode rests on this
fa1e4c221 vertex dump 8 -> 64 <- at 8 the log silently dropped four
quads of the EXTRAS 24-index batch
d90d14e02 RT state, resolves, PS constants
ab3203f79 h= content hash
The sharpest case is 0f920e645. Without it a draw log records no blend
state at all, so ui-blend-mode-decoded.md's 35-element oracle -- which
overturned a REFUTED entry and deleted the port's authored blend map --
could not be re-derived by anyone who cloned this repository.
The failure mode is silent: the recipe LOOKS complete and only fails for
someone on a different machine, long after its author could say what the
flag did.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jc4pciRArGHfxGGhEbwp5t
3.1 KiB
The Canary commits that exist only in this container
/canary is a separate checkout on branch sylpheed-re. Four commits on it are
not on any remote, and several committed findings cannot be reproduced without
them. This directory is their durable copy, because /work is pushed and
/canary is not.
Bounded by measurement, not by guess: git -C /canary branch -r --contains puts
590912722 on origin/sylpheed-re and finds no remote for any commit after it.
So the container-only stack is exactly these four.
| patch | canary sha | what it adds | findings that need it |
|---|---|---|---|
0001 |
0f920e645 |
blend= — RB_BLENDCONTROL0 per draw |
ui-blend-mode-decoded.md — the entire blend decode, and the additive path in ui_layout that follows from it |
0002 |
fa1e4c221 |
vertex dump raised 8 → 64 | the EXTRAS 24-index batch: at 8 vertices the log printed two quads of six and silently dropped four, which is why ptframe4/pteff21/22/23 looked absent |
0003 |
d90d14e02 |
render-target state, resolves, PS constants | ui-splash-draw-pass.md — "is there a post-process pass at all?" is a question about render targets, and the log could not see one |
0004 |
ab3203f79 |
h= — a content hash per sampled texture |
guest-frame-rate-resolved.md, its withdrawal, and clock-is-frame-based-one-unit-per-present.md |
Applying
git -C /canary am /work/tools/canary-patches/*.patch
ln -sfn /canary /work/xenia-canary # the build REQUIRES this symlink
cmake --build /sylph-home/re/canary-build --config Release --parallel 2 --target xenia_canary
rm /work/xenia-canary
⚠️ Without the symlink the build fails with The source directory "/work/xenia-canary" does not exist from a cmake --regenerate-during-build
step, which does not obviously point at a missing symlink.
⚠️ --parallel 2, not 4: this container has been OOM-killed before.
Why this directory exists
A finding whose reproduce recipe names a /canary sha is not reproducible.
Three corpus pages cite canary sylpheed-re d90d14e02 as though it were a public
reference; it is reachable from nowhere but this box. The failure is silent — the
recipe looks complete, and only fails for someone who tries it on a different
machine, long after the person who wrote it could explain what the flag did.
📌 The sharpest case is 0001. Without it a draw log records no blend state at
all, so ui-blend-mode-decoded.md's 35-element oracle — the thing that overturned
a REFUTED entry and deleted the port's authored blend map — could not be re-derived
by anyone who cloned this repository.
📌 And 0004 is the one whose absence actively misleads rather than merely
blocking: without a content hash a draw log records only texture base addresses,
and a triple buffer rotating once per present is indistinguishable from one decode
per present. That confusion cost two withdrawn positions on units/second in a
single day.