2 Commits
Author SHA1 Message Date
CydandClaude Fable 5 e6ebef071d Pick geometry completeness + the audio crackle root cause
Device raycast/scene parser (vpxlog.cpp):
- Connection lists: accumulate the WHOLE batch before slicing (records
  straddling burst boundaries were dropped + misaligned the rest), do
  not wipe polys per batch header (floor ships tri batch + quad batch;
  only the last survived), keep every loop index (closing-dup drop
  halved each quad). Together these were the "holey ground" the
  range-finder fell through.
- Own-mech exclusion by minimum pick range (15) instead of the
  dcs_parent ancestry walk: sibling link edges made the FLOOR and SKY
  read as the player's subtree, so ground/sky aims never resolved.
  Measured: own barrels/flash live within ~8 of the eye; sky/ground
  are real pickable entities (sky.mod, afloor) -- firing into them
  fires and misses, per the operator's arcade experience.

EMU8000 core (emu8k.cpp): clamp the oscillator output after cubic
interpolation. Crest overshoot on UNFILTERED voices overflowed int32
in the volume multiply and wrapped the crest negative for 1-3 samples
-- the speech/effects crackle (recorded signature: +0.7 flipping to
-0.7 at crests, random phase vs the chunk grid). Filter paths already
clamped; the bypass path now matches.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-08 15:16:40 -05:00
CydandClaude Fable 5 a0a4260fd4 Sound: dual-AWE32 EMU8000 emulation -- the pod has audio
Vendored 86Box EMU8000 core (GPL-2, emu8k.cpp/.h + shim) plus vweawe.cpp:
two cards at the production addresses (0x620/0x640 register triplets),
rear-card DSP/mixer stub at 0x240, synthesis on an autonomous render
thread with direct winmm output so sustained voices ride through
emulation-thread stalls (RIO staging retries) like the real silicon did.
WC sample-counter interpolation between render chunks keeps HMI SOS
busy-waits fast. VWE_AWE32/VWE_AWE_ROM/VWE_AWE_RAM_KB/VWE_AWE_SHIFT/
VWE_AWE_LEAD_MS/VWE_AWE_DUMP/VWE_AWE_LOG env knobs.

emulator/roms: the AWE32 1MGM GM ROM dumped from our own pod card (SF2)
plus the reconstructed raw image the emulated EMU8000 loads. The HMI
driver refuses the AUDIO*.RES SoundFont upload without it (banks declare
irom=1MGM) -- that was the root cause of the first silent runs; full
debug chain in SOUND-NOTES.md. Repo serves the pod-owner community only.

.gitignore: drop the ROM excludes and un-ignore ALPHA_1/ and sda4/
(committed separately).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-04 19:40:15 -05:00