Record grounded data-path analysis, per-DDC/RX2 deltas, the soft-vs-hard
WDSP channel split, preliminary decisions (4-6 hard DDCs, static first),
and the UI concept (edge markers, slices rail, ADC badge). Marked as a
work-in-progress draft.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Independent RX slices sharing one panadapter: each has its own
freq/mode/filter/AGC/NR-NB-SNB-ANF, S-meter, volume and sound card.
VFO A = main receiver; B+ are soft fan-out WDSP channels within the
captured span (ideal for Pluto/QO-100; HW DDC path is Stage 3).
- WDSPEngine: soft fan-out (TSliceChan, ProcessSlices in DSP thread,
per-slice NCO/mode/filter/AGC/NR/NB/SNB/ANF + S-meter, OnSliceAudio),
FSliceLock serialises add/remove/set vs DSP; reopened on rate change.
- RadioController: TCtrlSlice with its own TAudioOutput/device,
Add/Remove/SetSlice*, RefreshSliceShifts keeps slices on target Hz
across centre changes. Slice letters start at 'B' (A = main receiver).
- UI: per-slice flags (VfoOverlay) with letter badge/close, filter-band
markers in BOTH GL and CPU renderers, drag-retune, wheel; flags placed
beside the filter band with flip, like the main flag. Ctrl+click adds.
- Main flag (slice A) visible whenever the left panel is hidden OR any
slice exists; synced with panel-driven DSP/mode/AGC changes.
- Perf: S-meter decoupled from flag chrome cache (FMeterDirty +
meter-only RefreshMeter via EnsureRendered); InvalidateVfoOverlay
avoids global overlay-cache churn on meter ticks.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
ew8bakandClaude Opus 4.8