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docs: FB2 Zone-panel parity landed — S-VIEW-13 to COMPLETED, r11 editor recompose complete (Wave B closed)

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Daniel Harvey
2026-07-28 00:14:16 -04:00
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## Repo identity and current state
**ReaSampler** is a per-project audio sample-bank capture tool that builds two artifacts: the REAPER extension (`reaper_reasampler`) and **ReaSampler 9000**, a Windows-only VST3 sampler instrument (`reasampler_9000.vst3`, `src/vst/`, second CMake target `reasampler_vst`, gated on the vendored `vendor/vst3sdk` submodule slice). The pure-testable-core / REAPER-facing-shell discipline is preserved throughout. CONTEXT.md is the authoritative spec — settled decisions, invariants, guardrails, and not-yet-built specs; it is large, so locate the relevant phase section by grepping its headings and read only that section with an offset rather than reading it whole. Build detail for landed phases lives in CONTEXT-ARCHIVE.md. Every REAPER API name cited there is correct-by-intent; verify argument order, types, and flag values against `vendor/reaper-sdk/sdk/reaper_plugin_functions.h` before use. A post-S-VIEW DAW-fix pass has landed (all 52 suite tests green): envelope nodes fully editable in both modes (every Gate stage A/H/D/S/R + Trigger zero-fade-out node, param-domain schematic scaling, 8 px min node separation, all nodes clamped in-canvas); gap-free per-column waveform render (`columnMinMax` homed in `peaks`, `waveformColumnCount` in `component_geometry`, shared via `drawWaveform`); `param_slider` `Knob` primitive (7→5 o'clock arc, needle, vertical-drag); zone-bleed fix 3a (`reconcileSingleCaptureZones` in `sample_map`). The voice-system redesign is also landed: `sampler_core` gains user-parameterized voice count (1–32, default 16), `VoiceMode` Poly/Mono (last-note held-note stack, `MonoTrigger` retrigger/legato toggle), an isolated `PreviewCard` (dedicated preview voice outside the MIDI pool — never steals from/into it; unity-Preserve zero-latency bypass scoped to it), and two-tier panic (CC 123 = release, CC 120 = immediate hard-stop incl. Trigger one-shots); processor sums the preview card alongside the engine + drain, `retireIdleDrain()` retires fully-idle drain snapshots, and voice-param edits rebuild from the already-decoded PCM (no bank re-read/WAV re-decode) via the drain-slot swap; `ComponentState` envelope bumped v6→v7 (voiceCount/voiceMode/monoTrigger bytes; pre-v7 blobs lift to 16/Poly/Retrigger). **FB1 Sample-view recomposition (r11) has also landed** (suite 55/55 green): all linear sliders replaced by radial **knobs** in a fenced **knob deck** (groups: AMP ENVELOPE / PITCH / PITCH ENV / VOICE / MASTER); mode toggles are compact in the caption row, not full-width; the **hero waveform runs full-width** (elastic band, 840×620 default preserved); the inline velocity-curve box is replaced by a **28×28 curve preview button → centered popup** with right-click node delete; voice-band controls (count / Poly-Mono / Retrig-Legato) are placed in the VOICE deck group; a **post-mixer per-sample-ramped master gain** (−∞…+24 dB, no zipper) is placed in the MASTER deck group, persisted as `masterGainLinear` — `ComponentState` envelope bumped v7→v8 (pre-v8 blobs lift to unity gain). Three new pure `src/vst/` modules landed: `knob_deck` (group-box + caption-row + knob-cell geometry, deterministic wrap, hit-test), `curve_popup` (sheet/close/box geometry + outside-sheet dismissal test), `master_gain` (dB↔linear taper math, −∞…+24 dB).
**ReaSampler** is a per-project audio sample-bank capture tool that builds two artifacts: the REAPER extension (`reaper_reasampler`) and **ReaSampler 9000**, a Windows-only VST3 sampler instrument (`reasampler_9000.vst3`, `src/vst/`, second CMake target `reasampler_vst`, gated on the vendored `vendor/vst3sdk` submodule slice). The pure-testable-core / REAPER-facing-shell discipline is preserved throughout. CONTEXT.md is the authoritative spec — settled decisions, invariants, guardrails, and not-yet-built specs; it is large, so locate the relevant phase section by grepping its headings and read only that section with an offset rather than reading it whole. Build detail for landed phases lives in CONTEXT-ARCHIVE.md. Every REAPER API name cited there is correct-by-intent; verify argument order, types, and flag values against `vendor/reaper-sdk/sdk/reaper_plugin_functions.h` before use. A post-S-VIEW DAW-fix pass has landed (all 52 suite tests green): envelope nodes fully editable in both modes (every Gate stage A/H/D/S/R + Trigger zero-fade-out node, param-domain schematic scaling, 8 px min node separation, all nodes clamped in-canvas); gap-free per-column waveform render (`columnMinMax` homed in `peaks`, `waveformColumnCount` in `component_geometry`, shared via `drawWaveform`); `param_slider` `Knob` primitive (7→5 o'clock arc, needle, vertical-drag); zone-bleed fix 3a (`reconcileSingleCaptureZones` in `sample_map`). The voice-system redesign is also landed: `sampler_core` gains user-parameterized voice count (1–32, default 16), `VoiceMode` Poly/Mono (last-note held-note stack, `MonoTrigger` retrigger/legato toggle), an isolated `PreviewCard` (dedicated preview voice outside the MIDI pool — never steals from/into it; unity-Preserve zero-latency bypass scoped to it), and two-tier panic (CC 123 = release, CC 120 = immediate hard-stop incl. Trigger one-shots); processor sums the preview card alongside the engine + drain, `retireIdleDrain()` retires fully-idle drain snapshots, and voice-param edits rebuild from the already-decoded PCM (no bank re-read/WAV re-decode) via the drain-slot swap; `ComponentState` envelope bumped v6→v7 (voiceCount/voiceMode/monoTrigger bytes; pre-v7 blobs lift to 16/Poly/Retrigger). **FB1 Sample-view recomposition (r11) has also landed** (suite 55/55 green): all linear sliders replaced by radial **knobs** in a fenced **knob deck** (groups: AMP ENVELOPE / PITCH / PITCH ENV / VOICE / MASTER); mode toggles are compact in the caption row, not full-width; the **hero waveform runs full-width** (elastic band, 840×620 default preserved); the inline velocity-curve box is replaced by a **28×28 curve preview button → centered popup** with right-click node delete; voice-band controls (count / Poly-Mono / Retrig-Legato) are placed in the VOICE deck group; a **post-mixer per-sample-ramped master gain** (−∞…+24 dB, no zipper) is placed in the MASTER deck group, persisted as `masterGainLinear` — `ComponentState` envelope bumped v7→v8 (pre-v8 blobs lift to unity gain). Three new pure `src/vst/` modules landed: `knob_deck` (group-box + caption-row + knob-cell geometry, deterministic wrap, hit-test), `curve_popup` (sheet/close/box geometry + outside-sheet dismissal test), `master_gain` (dB↔linear taper math, −∞…+24 dB). **FB2 Zone-panel parity (r11, 2026-07-28) has also landed** (suite 55/55 green): the Zone param panel now uses the same knob deck + curve-preview-button/popup grammar as the Sample face — one control grammar across both surfaces of the one per-zone storage site; Zone-authoring affordances (+Add Zone / Delete, the piano-key strip, Low/High/Root legend) are preserved; VOICE and MASTER groups remain Sample-only (per-instance). `param_slider`'s linear slider rows are retired on the Zone panel (the FA4 `Knob` primitive is now the only live consumer of that half of `param_slider`). **This completes the r11 editor recomposition (Wave B / Phase S editor redesign).**
## One-time submodule setup