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filter: sweep the corner continuously; raise the editor floor to 840x620

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Cutoff-only re-solve (15.5 vs 56.9 ns/frame) makes the unquantized sweep
affordable, replacing the 2048-step mod quantizer. Live-compute parameters
remain blocked on a shell-architecture ruling.
This commit is contained in:
Daniel Harvey
2026-07-30 18:12:10 -04:00
parent 39389c1183
commit 0cfd9b6236
14 changed files with 237 additions and 88 deletions
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src/core/instrument/CLAUDE.md
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@@ -217,7 +217,7 @@ slider couldn't. Two pure modules split the forward (draw) and inverse (edit) ma
### `ui/`
- `editor_geometry` (`core/instrument/ui`) — the shared geometry VOCABULARY every instrument UI module speaks: the `core::ui::Rect` alias, `contains()`, and `OverlayArea` (a one-field `Rect` wrapper, no implicit conversion from `Rect`). Header-only (an INTERFACE CMake target), so it carries no layout of its own.
- `sample_bands` — **THE band-stack allocator**, and the only module that owns the Sample face's vertical inventory: three bands top-to-bottom (CHROME toolbar+control row / WAVEFORM elastic, floored at two stacked lanes / DECKS bottom-anchored at the knob deck's own wrapped height), plus the waveform band's lane split (`waveformLanes` takes a resolved `LaneSplit`, not a raw bool — only `waveformSurface` folds the source-channel-count decision in). A shared READ-ONLY surface for every band owner — a band's interior module lays out inside the rect it is handed and never re-allocates the stack.
- `sample_bands` — **THE band-stack allocator**, and the only module that owns the Sample face's vertical inventory — including `kEditorMinWidth`/`kEditorMinHeight`, the editor's client-area floor, which IS its default size (the shell's `checkSizeConstraint` and opening `ViewRect` both read it; the face grows, never shrinks below what the stack is laid out for). Three bands top-to-bottom (CHROME toolbar+control row / WAVEFORM elastic, floored at two stacked lanes / DECKS bottom-anchored at the knob deck's own wrapped height), plus the waveform band's lane split (`waveformLanes` takes a resolved `LaneSplit`, not a raw bool — only `waveformSurface` folds the source-channel-count decision in). A shared READ-ONLY surface for every band owner — a band's interior module lays out inside the rect it is handed and never re-allocates the stack.
- `sample_chrome` — the CHROME band's interior: the toolbar row (title + the whole right-anchored control run — preview, velocity knob cell, curve button, channel toggle, Browse) over the strip row, which the piano strip owns outright. The title takes what the run leaves; the strip takes its whole row, inset only by the shared band pad so it lines up with the waveform band beneath.
- `keyboard_strip` — piano-keyboard strip: true white/black key geometry (whites tiled at one width, blacks overlaid at one width and height, straddling their boundary), hit-test resolving black-over-white by zone, root-marker rect, the absolute-position drag resolver, and MIDI note naming under the C4 convention. **Same-class keys are one integer width by construction; the residue of an indivisible band width (`w % 75`, up to 74 px) lands in symmetric end margins, never in a key** — uniform widths and gap-free edge-to-edge tiling cannot both hold, and uniformity wins.
- `waveform_view` — the WAVEFORM band's interior: `waveformSurface` resolves the drawn lane(s) (two stacked lanes, L over R, only when the mode is stereo AND the source has a second channel — a mono source under stereo mode is dual-mono and draws one lane) plus **the** overlay area, and `laneEnvelope` splits one multi-channel envelope pass per lane. Also maps frame span linearly across a rect; generic named draggable markers with drag-delta resolver, clamp, and zero-crossing snap.