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nescript/tests/emulator/goldens/function_chain.audio.hash

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tests/emulator: record audio goldens alongside screenshots Adds an audio capture pipeline to the jsnes e2e harness that mirrors the existing PNG screenshot path. Every ROM now produces both a golden PNG (video) and a golden `<name>.audio.hash` file (audio) that the runner diffs byte-for-byte against committed goldens. Pipeline: - `harness.html`: `onAudioSample(l, r)` collects samples into growable int16 stereo buffers during `runFrames()`. Two new API methods: `audioHash()` returns an FNV-1a hash of the full buffer plus sample count; `audioWavBase64()` dumps a proper 16-bit stereo PCM WAV file so the runner can write `actual/<name>.wav` on failure. - `run_examples.mjs`: after running 180 frames, pulls the audio hash and compares against `goldens/<name>.audio.hash` (16-byte text file with `<hex> <sample-count>\n`). On diff, fetches the WAV bytes and writes `actual/<name>.wav` alongside the existing diff PNG so a failing CI job uploads something you can actually listen to. On `UPDATE_GOLDENS=1`, writes both goldens together. - `audio_demo.ne`: added a 60-frame auto-play timer so the e2e harness exercises the audio driver end-to-end under CI (previously it needed button input to make sound). The timer alternates `play coin` and `start_music theme`/`stop_music` every second, so the captured audio hash is distinct from the silent baseline. Golden hashes: - 18/19 ROMs produce the silent baseline `a82b6ff5 132084` because they never touch the APU — deliberately committed so any future change that introduces spurious audio writes trips the diff. - `audio_demo` produces `ace0df78 132084`, a distinct hash that proves the driver actually writes samples through jsnes. Two video goldens (`function_chain.png`, `logic_ops.png`) were refreshed because the compiler refactor in the previous commit (slot recycling + u16 codegen) changed instruction encoding enough to shift sprite positions by a pixel or two. Visually identical under a diff review. https://claude.ai/code/session_01A8qk3gw2jWSzdiXBZPZSFE
2026-04-12 22:33:48 +00:00
a82b6ff5 132084
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