diff --git a/src/renderer/screen.js b/src/renderer/screen.js
index 3844432..b963aa5 100644
--- a/src/renderer/screen.js
+++ b/src/renderer/screen.js
@@ -1031,17 +1031,17 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
console.warn('[audio-engine] Corrupted slopsmith-signal-chain; starting empty:', e);
savedChain = [];
}
- // Drop Rig Builder plumbing stages from legacy saves. Before
- // saveChainStateFromChain learned to skip Rig-Builder-owned chains, a
+ // Drop Rig Builder stages from legacy saves. Before
+ // saveChainStateFromChain learned to filter Rig-Builder-owned stages, a
// user chain action taken while Rig Builder's default tone was live
- // persisted its wrap stages (unit-impulse trim IR, Final Leveler) into
+ // persisted its stages (amp, unit-impulse trim IR, Final Leveler) into
// the saved chain; restoring those as plain processors resurrects a
// tone this panel never built. Rewrite the cleaned list back so the
// save self-heals.
- const _cleaned = savedChain.filter((item) => !isRigBuilderChainStage(item));
+ const _cleaned = savedChain.filter((item) => !aeIsRigBuilderStage(item));
if (_cleaned.length !== savedChain.length) {
console.info('[audio-engine] Dropped', savedChain.length - _cleaned.length,
- 'Rig Builder plumbing stage(s) from the saved chain.');
+ 'Rig Builder stage(s) from the saved chain.');
try { localStorage.setItem('slopsmith-signal-chain', JSON.stringify(_cleaned)); } catch (_) {}
savedChain = _cleaned;
}
@@ -1061,30 +1061,65 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
if (savedChain.length > 0) await refreshChain();
}
- // Rig Builder plumbing markers. Its default-tone/preview wraps carry a
- // 1-sample unit-impulse trim IR and an auto-appended "RB Final Leveler"
- // stage — a chain containing either was built by the Rig Builder plugin,
- // not by this panel.
- const RB_PLUMBING_MARKER = /_rb_unit_impulse|RB Final Leveler/i;
- function isRigBuilderChainStage(stage) {
- return RB_PLUMBING_MARKER.test(String(stage?.path || ''))
- || RB_PLUMBING_MARKER.test(String(stage?.name || ''));
+ // A chain stage that belongs to Rig Builder's tone (amp / pedals / racks /
+ // unit-impulse trim IR / master pre-post / the RB Final Leveler), NOT
+ // something the user added by hand here in the Audio menu. Rig Builder's
+ // preloader is always on and loads its whole tone into the SHARED engine
+ // chain; without this guard, "Save Current Chain" (and the auto-persist)
+ // captured the live engine via getChainState()/savePreset() and baked
+ // those stages into the user's manual chain — so on reload the user's own
+ // signal chain sprouted a full Rig Builder amp/pedal/rack rig they never
+ // added.
+ function aeIsRigBuilderStage(s) {
+ if (!s) return false;
+ const path = String(s.path || s.file || '');
+ if (/[\\/]rig_builder[\\/]/i.test(path)) return true; // bundled RB amp/pedal/rack/leveler VST3
+ const name = String(s.name || '');
+ // Leveler + the 1-sample unit-impulse trim IR match by name or path so
+ // copies living outside the plugin dir are still recognized.
+ if (/RB Final Leveler|_rb_unit_impulse/i.test(name)
+ || /RB Final Leveler|_rb_unit_impulse/i.test(path)) return true;
+ const gear = String(s.rs_gear || s.rsGear || '');
+ if (gear.indexOf('__rb') === 0) return true; // __rb_final_leveler__ / master sentinels
+ const slot = String(s.slot || '');
+ if (slot === 'master_pre' || slot === 'master_post') return true;
+ return false;
+ }
+
+ // Strip Rig Builder's stages out of the engine's native preset blob so a
+ // saved manual preset only carries the user's own processors (with their VST
+ // param state). The blob is JSON with a `chain` array; a user's manual chain
+ // is flat (no positional cross-refs) so filtering it is safe.
+ function aeStripRigBuilderFromNativePreset(nativePreset) {
+ try {
+ const isStr = typeof nativePreset === 'string';
+ const obj = isStr ? JSON.parse(nativePreset) : nativePreset;
+ if (obj && Array.isArray(obj.chain)) {
+ obj.chain = obj.chain.filter(s => !aeIsRigBuilderStage(s));
+ }
+ return isStr ? JSON.stringify(obj) : obj;
+ } catch (_) {
+ return nativePreset; // unparseable — leave untouched
+ }
}
function saveChainStateFromChain(chain) {
- // Never persist a Rig-Builder-owned chain. Rig Builder reloads its
- // default tone into the engine on its own schedule (song stop, screen
- // leave), so it is routinely the ambient live chain while the user is
- // in this panel; snapshotting it here would make the saved chain
- // resurrect Rig Builder's tone on the next restore. Keep the last
- // panel-built chain instead.
- if (Array.isArray(chain) && chain.some(isRigBuilderChainStage)) return;
+ // Persist only the USER's stages. Rig Builder reloads its default tone
+ // into the engine on its own schedule (song stop, screen leave), so it
+ // is routinely the ambient live chain while the user is in this panel;
+ // snapshotting its stages would make the saved chain resurrect Rig
+ // Builder's tone on the next restore. Filtering (rather than skipping
+ // the save entirely) still captures processors the user stacked on top
+ // of a live Rig Builder tone — e.g. "add NAM while RB's amp is loaded"
+ // persists just the NAM.
const typeMap = { 0: 'VST', 1: 'NAM', 2: 'IR' };
- const items = chain.filter(s => s.type === 0 || s.type === 1 || s.type === 2).map(s => ({
- type: typeMap[s.type] || 'VST',
- path: s.path || '',
- name: s.name || '',
- }));
+ const items = chain
+ .filter(s => (s.type === 0 || s.type === 1 || s.type === 2) && !aeIsRigBuilderStage(s))
+ .map(s => ({
+ type: typeMap[s.type] || 'VST',
+ path: s.path || '',
+ name: s.name || '',
+ }));
try { localStorage.setItem('slopsmith-signal-chain', JSON.stringify(items)); } catch (_) {}
}
@@ -1290,15 +1325,29 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
const chain = await api.getChainState();
container.innerHTML = '';
- if (chain.length === 0) {
- container.innerHTML = '
No processors loaded — add a VST, NAM model, or cabinet IR
';
+ // List only the user's own processors — Rig Builder's always-on tone is
+ // loaded into the same engine chain but it isn't part of the manual chain
+ // the user is building here (see aeIsRigBuilderStage). Rig Builder's
+ // stages are audible though, so never hide them SILENTLY: a user hearing
+ // an amp while this panel claims "No processors loaded" reads as a
+ // phantom tone. Surface a count note instead; the stages themselves are
+ // managed from the Rig Builder screen.
+ const all = Array.isArray(chain) ? chain : [];
+ const visible = all.filter(s => !aeIsRigBuilderStage(s));
+ const rbCount = all.length - visible.length;
+ const rbNote = rbCount > 0
+ ? `+ ${rbCount} Rig Builder tone stage${rbCount === 1 ? '' : 's'} active (managed in Rig Builder)
`
+ : '';
+
+ if (visible.length === 0) {
+ container.innerHTML = 'No processors loaded — add a VST, NAM model, or cabinet IR
' + rbNote;
return chain;
}
const typeNames = { 0: 'VST', 1: 'NAM', 2: 'IR' };
const typeColors = { 0: 'purple', 1: 'orange', 2: 'cyan' };
- for (const slot of chain) {
+ for (const slot of visible) {
const color = typeColors[slot.type] || 'slate';
const div = document.createElement('div');
div.className = `flex items-center gap-3 p-3 rounded bg-slate-800/50 border border-${color}-500/30`;
@@ -1318,6 +1367,11 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
`;
container.appendChild(div);
}
+ if (rbNote) {
+ const note = document.createElement('div');
+ note.innerHTML = rbNote;
+ container.appendChild(note.firstChild);
+ }
return chain;
}
@@ -1748,14 +1802,20 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
const doSave = async () => {
const name = input.value.trim();
if (!name) return;
- const nativePreset = await api.savePreset();
- if (!nativePreset) return;
+ const nativePresetRaw = await api.savePreset();
+ if (!nativePresetRaw) return;
+ // Keep Rig Builder's always-on tone out of the user's manual
+ // preset (see aeIsRigBuilderStage) — both the native blob and the
+ // item list.
+ const nativePreset = aeStripRigBuilderFromNativePreset(nativePresetRaw);
const chain = await api.getChainState();
- const items = chain.map(s => ({
- type: s.type === 0 ? 'VST' : s.type === 1 ? 'NAM' : 'IR',
- path: s.path || '',
- name: s.name || '',
- }));
+ const items = chain
+ .filter(s => !aeIsRigBuilderStage(s))
+ .map(s => ({
+ type: s.type === 0 ? 'VST' : s.type === 1 ? 'NAM' : 'IR',
+ path: s.path || '',
+ name: s.name || '',
+ }));
const gains = captureCurrentGainLevels();
const noiseGate = captureCurrentNoiseGateState();
const tonePolish = captureCurrentTonePolishState();
@@ -2254,6 +2314,10 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
} catch (_) { nativeChain = []; }
for (let ci = 0; ci < chainItems.length; ci++) {
const item = chainItems[ci];
+ // Legacy polluted presets: skip Rig Builder stages a pre-fix build
+ // baked in (see aeIsRigBuilderStage). Skipping by index keeps the
+ // items ↔ nativeChain alignment intact for the remaining pairs.
+ if (aeIsRigBuilderStage(item) || aeIsRigBuilderStage(nativeChain[ci])) continue;
let slotId = -1;
if (item.type === 'NAM' && item.path) slotId = await api.loadNAMModel(item.path);
else if (item.type === 'IR' && item.path) slotId = await api.loadIR(item.path);
@@ -2311,7 +2375,23 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
try {
await api.clearChain();
- const result = await api.loadPreset(preset.nativePreset);
+ // Clean any Rig Builder stages a pre-fix build baked into this saved
+ // preset (see aeIsRigBuilderStage). A preset that empties completely
+ // was 100% Rig Builder's tone (saved while only RB stages were live)
+ // — loading it empty is CORRECT: that tone belongs to Rig Builder,
+ // which reloads it on its own schedule, and falling back to the
+ // polluted blob would resurrect RB stages into the manual chain.
+ // Empty-chain presets are a supported shape (see
+ // songShouldRebuildChain's loadability notes).
+ const _nativeToLoad = aeStripRigBuilderFromNativePreset(preset.nativePreset);
+ try {
+ const before = JSON.parse(typeof preset.nativePreset === 'string' ? preset.nativePreset : '{}');
+ const after = JSON.parse(typeof _nativeToLoad === 'string' ? _nativeToLoad : '{}');
+ if (Array.isArray(before?.chain) && before.chain.length && Array.isArray(after?.chain) && after.chain.length === 0) {
+ console.warn(tag + ': preset contained only Rig Builder stages — loading it as an empty chain.');
+ }
+ } catch (_) { /* diagnostics only */ }
+ const result = await api.loadPreset(_nativeToLoad);
// Some JUCE bridges return {success:false} or bare false instead of throwing.
if (result === false || (result && result.success === false)) {
console.error(tag + ': loadPreset failed:', result?.error || 'unknown error');
@@ -2393,6 +2473,9 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
window._aeApplyPresetTonePolish = applyPresetTonePolish;
window._aeLoadDefaultPreset = loadDefaultPreset;
window._aeReplaceChainWithPresetBlob = replaceChainWithPresetBlob;
+ // Shared with IIFE 2's inline preload copy (the two IIFEs deliberately
+ // don't share scope) so its legacy-preset load skips Rig Builder stages too.
+ window._aeIsRigBuilderStage = aeIsRigBuilderStage;
/** True when the song has tone-switching configured — a resolvable
* global / per-song bypass mapping, or Tone Automation with a resolvable
@@ -4802,8 +4885,14 @@ window.__feedBackDesktopAudioHooks = window.__feedBackDesktopAudioHooks || {};
const parsed = JSON.parse(preset.nativePreset || '{}').chain;
if (Array.isArray(parsed)) nativeChain = parsed;
} catch (_) { nativeChain = []; }
+ const _isRbStage = window._aeIsRigBuilderStage || (() => false);
for (let ci = 0; ci < chainItems.length; ci++) {
const item = chainItems[ci];
+ // Legacy polluted presets: skip Rig Builder stages a
+ // pre-fix build baked in. Skipping by index keeps the
+ // items ↔ nativeChain alignment for remaining pairs
+ // (mirrors loadPresetItemsWithState in IIFE 1).
+ if (_isRbStage(item) || _isRbStage(nativeChain[ci])) continue;
let slotId = -1;
if (item.type === 'NAM' && item.path) slotId = await api.loadNAMModel(item.path);
else if (item.type === 'IR' && item.path) slotId = await api.loadIR(item.path);
diff --git a/tests/audio-chain-persistence.test.js b/tests/audio-chain-persistence.test.js
index 17c6b32..55ff387 100644
--- a/tests/audio-chain-persistence.test.js
+++ b/tests/audio-chain-persistence.test.js
@@ -1,10 +1,11 @@
-// Guards against the alpha-tester chain-duplication bug: the audio_engine
-// panel must (1) never persist a Rig-Builder-owned live chain into
-// localStorage, (2) drop Rig Builder plumbing stages from legacy saves on
-// restore, and (3) never auto-load (default preset / saved-chain restore) on
-// top of an engine that already has a live chain — the native chain survives
-// renderer re-evaluations, so an unconditional restore appended an exact
-// duplicate of every stage (two amp stages in series = "gain blown out").
+// Guards against the alpha-tester chain-duplication/pollution bugs: the
+// audio_engine panel must (1) persist only the USER's stages — never Rig
+// Builder's always-on tone stages — into localStorage and named presets,
+// (2) drop Rig Builder stages from legacy saves on restore, and (3) never
+// auto-load (default preset / saved-chain restore) on top of an engine that
+// already has a live chain — the native chain survives renderer
+// re-evaluations, so an unconditional restore appended an exact duplicate of
+// every stage (two amp stages in series = "gain blown out").
const test = require('node:test');
const assert = require('node:assert/strict');
@@ -15,14 +16,24 @@ const vm = require('node:vm');
const ROOT = path.join(__dirname, '..');
const SCREEN_JS = fs.readFileSync(path.join(ROOT, 'src', 'renderer', 'screen.js'), 'utf8');
-// Brace-balanced extraction of `function NAME(...) { ... }`.
+// Brace-balanced extraction of `function NAME(...) { ... }`. Skips past the
+// parameter list first (paren-balanced) so a destructured default parameter
+// like `{ snapshot = true } = {}` isn't mistaken for the body's opening brace.
function extractFunction(src, name) {
const sig = `function ${name}(`;
const start = src.indexOf(sig);
assert.ok(start !== -1, `function '${name}' not found`);
- const openBrace = src.indexOf('{', start);
+ let i = start + sig.length;
+ let parens = 1;
+ while (i < src.length && parens > 0) {
+ if (src[i] === '(') parens++;
+ else if (src[i] === ')') parens--;
+ i++;
+ }
+ assert.ok(parens === 0, `unbalanced parens in '${name}' signature`);
+ const openBrace = src.indexOf('{', i);
let depth = 1;
- let i = openBrace + 1;
+ i = openBrace + 1;
while (i < src.length && depth > 0) {
if (src[i] === '{') depth++;
else if (src[i] === '}') depth--;
@@ -32,14 +43,10 @@ function extractFunction(src, name) {
return src.slice(start, i);
}
-// Extract the marker const + both helpers into one sandbox.
function setupSandbox() {
- const markerStart = SCREEN_JS.indexOf('const RB_PLUMBING_MARKER');
- assert.ok(markerStart !== -1, 'RB_PLUMBING_MARKER not found');
- const markerDecl = SCREEN_JS.slice(markerStart, SCREEN_JS.indexOf(';', markerStart) + 1);
const code = [
- markerDecl,
- extractFunction(SCREEN_JS, 'isRigBuilderChainStage'),
+ extractFunction(SCREEN_JS, 'aeIsRigBuilderStage'),
+ extractFunction(SCREEN_JS, 'aeStripRigBuilderFromNativePreset'),
extractFunction(SCREEN_JS, 'saveChainStateFromChain'),
].join('\n');
const stored = new Map();
@@ -54,20 +61,17 @@ function setupSandbox() {
}
const RB_CHAIN = [
- { type: 0, path: '/vst/SamplegSBTCL.vst3', name: 'SamplegSBTCL' },
+ { type: 0, path: '/plugins/rig_builder/vst/SamplegSBTCL.vst3', name: 'SamplegSBTCL' },
{ type: 2, path: '/irs/_rb_unit_impulse.wav', name: '_rb_unit_impulse' },
{ type: 0, path: '/vst/RB Final Leveler.vst3', name: 'RB Final Leveler' },
];
-test('saveChainStateFromChain skips a Rig-Builder-owned live chain', () => {
+test('saveChainStateFromChain persists only the user stages of a mixed chain', () => {
const { sandbox, stored } = setupSandbox();
- stored.set('slopsmith-signal-chain', '[{"type":"NAM","path":"/nam/amp.nam","name":"amp"}]');
sandbox.saveChainStateFromChain([...RB_CHAIN, { type: 1, path: '/nam/vox.nam', name: 'VOX' }]);
- assert.equal(
- stored.get('slopsmith-signal-chain'),
- '[{"type":"NAM","path":"/nam/amp.nam","name":"amp"}]',
- 'the previously saved panel-built chain must be preserved',
- );
+ assert.deepEqual(JSON.parse(stored.get('slopsmith-signal-chain')), [
+ { type: 'NAM', path: '/nam/vox.nam', name: 'VOX' },
+ ], 'RB stages stripped, the user NAM stacked on top survives');
});
test('saveChainStateFromChain persists a panel-built chain normally', () => {
@@ -83,12 +87,42 @@ test('saveChainStateFromChain persists a panel-built chain normally', () => {
]);
});
-test('isRigBuilderChainStage matches plumbing by path or name only', () => {
+test('aeIsRigBuilderStage recognizes every Rig Builder stage shape', () => {
const { sandbox } = setupSandbox();
- assert.equal(sandbox.isRigBuilderChainStage({ path: '/irs/_rb_unit_impulse.wav' }), true);
- assert.equal(sandbox.isRigBuilderChainStage({ name: 'RB Final Leveler' }), true);
- assert.equal(sandbox.isRigBuilderChainStage({ path: '/vst/MyAmp.vst3', name: 'MyAmp' }), false);
- assert.equal(sandbox.isRigBuilderChainStage(null), false);
+ const rb = sandbox.aeIsRigBuilderStage;
+ // Bundled RB gear by plugin-dir path (amps/pedals/racks), both separators.
+ assert.equal(rb({ path: '/plugins/rig_builder/vst/SamplegSBTCL.vst3' }), true);
+ assert.equal(rb({ path: 'C:\\plugins\\rig_builder\\vst\\Amp_AT20.vst3' }), true);
+ // Plumbing by name or path, wherever the file lives.
+ assert.equal(rb({ path: '/irs/_rb_unit_impulse.wav' }), true);
+ assert.equal(rb({ name: '_rb_unit_impulse' }), true);
+ assert.equal(rb({ name: 'RB Final Leveler' }), true);
+ assert.equal(rb({ path: '/vst/RB Final Leveler.vst3' }), true);
+ // Backend chain-spec sentinels.
+ assert.equal(rb({ rs_gear: '__rb_final_leveler__' }), true);
+ assert.equal(rb({ slot: 'master_pre' }), true);
+ assert.equal(rb({ slot: 'master_post' }), true);
+ // User gear is untouched.
+ assert.equal(rb({ path: '/vst/MyAmp.vst3', name: 'MyAmp' }), false);
+ assert.equal(rb({ path: '/nam/vox.nam', name: 'VOX' }), false);
+ assert.equal(rb(null), false);
+});
+
+test('aeStripRigBuilderFromNativePreset filters the blob chain, keeps user state', () => {
+ const { sandbox } = setupSandbox();
+ const blob = JSON.stringify({
+ chain: [
+ { type: 0, path: '/plugins/rig_builder/vst/SamplegSBTCL.vst3', state: 'rb' },
+ { type: 0, path: '/vst/MyReverb.vst3', state: 'user-params' },
+ { type: 0, path: '/vst/x.vst3', slot: 'master_post', state: 'rb' },
+ ],
+ gains: { input: 1 },
+ });
+ const out = JSON.parse(sandbox.aeStripRigBuilderFromNativePreset(blob));
+ assert.deepEqual(out.chain, [{ type: 0, path: '/vst/MyReverb.vst3', state: 'user-params' }]);
+ assert.deepEqual(out.gains, { input: 1 }, 'non-chain fields pass through');
+ // Unparseable blob passes through untouched.
+ assert.equal(sandbox.aeStripRigBuilderFromNativePreset('not json{'), 'not json{');
});
test('init auto-load is gated on an empty engine chain (re-evaluation guard)', () => {
@@ -106,10 +140,13 @@ test('init auto-load is gated on an empty engine chain (re-evaluation guard)', (
);
});
-test('restore drops Rig Builder plumbing stages from legacy saves', () => {
- // aeRestoreSavedChain is async and coupled to the api bridge; assert the
- // sanitize step is present and rewrites the cleaned save.
- const fn = extractFunction(SCREEN_JS, 'aeRestoreSavedChain');
- assert.equal(fn.includes('isRigBuilderChainStage'), true);
- assert.equal(fn.includes("localStorage.setItem('slopsmith-signal-chain', JSON.stringify(_cleaned))"), true);
+test('restore self-heals legacy saves and preset save/load strip RB stages', () => {
+ const restore = extractFunction(SCREEN_JS, 'aeRestoreSavedChain');
+ assert.equal(restore.includes('aeIsRigBuilderStage'), true);
+ assert.equal(restore.includes("localStorage.setItem('slopsmith-signal-chain', JSON.stringify(_cleaned))"), true);
+ // Save Current Chain strips both the native blob and the item list…
+ assert.equal(SCREEN_JS.includes('aeStripRigBuilderFromNativePreset(nativePresetRaw)'), true);
+ // …and the preset-load path sanitizes legacy polluted presets.
+ const load = extractFunction(SCREEN_JS, 'replaceChainWithPresetBlob');
+ assert.equal(load.includes('aeStripRigBuilderFromNativePreset(preset.nativePreset)'), true);
});