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Fix packed raw menu sound effects

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gamer147
2026-07-20 18:39:38 -04:00
parent 7a9fe52a9d
commit e472c0c371
8 changed files with 40 additions and 24 deletions
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docs/opcode-reference.md
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@@ -130,7 +130,7 @@
### 0xb4 `sfx-load` (play-sound-effect, argc 2)
- **summary:** (packed_raw_resource_id)(channel) — synchronously open the universal SYS4INI/AAI catalog entry and replace the channel's decoded sound buffer without starting playback. A zero high byte is a raw SYS4INI index; a nonzero high byte selects an append catalog and uses the low 24-bit index. Native manager supports channels 0..12; SC0000 uses 0..9.
- **grounding:** source=investigation, confidence=high
- **evidence:** Ghidra /v2: op_0xb4_sfx_load@0x4201d0 -> sfx_channel_load@0x482500 -> asset_open_indexed_entry@0x44f390 + sound_decode_channel@0x483360. The opener indexes the base catalog directly for a zero high byte and selects mounted_aai[high_byte] otherwise. SC0000 0xc29 uses raw 0x28 = E0808.WAV. TITLE independently proves the addressing rule: raw 0x2aea = SE020.WAV is preloaded on channel 2 and started on every hover-selection change; raw 0x3321 = SE015.WAV is loaded/started on activation. A synchronized port trace executes those loads and starts but reports file=null because Godot incorrectly applies TITLE's 14-entry scene manifest.
- **evidence:** Ghidra /v2: op_0xb4_sfx_load@0x4201d0 -> sfx_channel_load@0x482500 -> asset_open_indexed_entry@0x44f390 + sound_decode_channel@0x483360. The opener indexes the base catalog directly for a zero high byte and selects mounted_aai[high_byte] otherwise. SC0000 0xc29 uses raw 0x28 = E0808.WAV. TITLE independently proves the addressing rule: raw 0x2aea = SE020.WAV is preloaded on channel 2 and started on every hover-selection change; raw 0x3321 = SE015.WAV is loaded/started on activation. The pre-fix port trace reported file=null under scene-manifest resolution; after switching Godot to ResolveSoundEffect/ResolvePacked, a synchronized TITLE->GAMESTART->TITLE trace resolves and starts SE020/SE015/SE013, confirmed audible by the user.
### 0xb5 `sfx-start` (u0041D050, argc 1)
- **summary:** (channel) — start the already-loaded channel once (logical loop=false). DirectSound publishes synchronously through Play(0,0,DSBPLAY_LOOPING); the low-level flag loops only the streaming ring, while decoder EOF stops logical playback.