Merge pull request 'Feature: non-realtime exporting' (#1674) from BANanaD3V/strudel:feat/non-realtime-exporting into main

Reviewed-on: https://codeberg.org/uzu/strudel/pulls/1674

website/src/repl/components/panel/ExportTab.jsx

@@ -0,0 +1,197 @@
+import PlayCircleIcon from '@heroicons/react/20/solid/PlayCircleIcon';
+import cx from '@src/cx.mjs';
+import NumberInput from '@src/repl/components/NumberInput';
+import { useEffect, useState } from 'react';
+import { Textbox } from '../textbox/Textbox';
+import { getAudioContext } from '@strudel/webaudio';
+import XMarkIcon from '@heroicons/react/24/outline/XMarkIcon';
+
+function Checkbox({ label, value, onChange, disabled = false }) {
+  return (
+    <label className={cx(disabled && 'opacity-50')}>
+      <input disabled={disabled} type="checkbox" checked={value} onChange={onChange} />
+      {' ' + label}
+    </label>
+  );
+}
+
+function FormItem({ label, children, disabled }) {
+  return (
+    <div className="grid gap-2 w-full">
+      <label className={cx(disabled && 'opacity-50')}>{label}</label>
+      {children}
+    </div>
+  );
+}
+
+export default function ExportTab(Props) {
+  const { handleExport } = Props;
+
+  const [downloadName, setDownloadName] = useState('');
+  const [startCycle, setStartCycle] = useState(0);
+  const [endCycle, setEndCycle] = useState(1);
+  const [sampleRate, setSampleRate] = useState(48000);
+  const [multiChannelOrbits, setMultiChannelOrbits] = useState(true);
+  const [maxPolyphony, setMaxPolyphony] = useState(1024);
+  const [exporting, setExporting] = useState(false);
+  const [progress, setProgress] = useState(0);
+  const [length, setLength] = useState(1);
+
+  const refreshProgress = () => {
+    const audioContext = getAudioContext();
+    if (audioContext instanceof OfflineAudioContext) {
+      setProgress(audioContext.currentTime);
+      setLength(audioContext.length / sampleRate);
+      setTimeout(refreshProgress, 100);
+    }
+  };
+
+  return (
+    <>
+      <div className="text-foreground w-full p-4 space-y-4">
+        <FormItem label="File name" disabled={exporting}>
+          <Textbox
+            onBlur={(e) => {
+              setDownloadName(e.target.value);
+            }}
+            onChange={(v) => {
+              setDownloadName(v);
+            }}
+            disabled={exporting}
+            placeholder="Leave empty to use current date"
+            className={cx('placeholder:opacity-50', exporting && 'opacity-50 border-opacity-50')}
+            value={downloadName ?? ''}
+          />
+        </FormItem>
+        <div className="flex flex-row gap-4 w-full">
+          <FormItem label="Start cycle" disabled={exporting}>
+            <Textbox
+              min={1}
+              max={Infinity}
+              onBlur={(e) => {
+                let v = parseInt(e.target.value);
+                v = isNaN(v) ? 0 : Math.max(0, v);
+                setStartCycle(v);
+              }}
+              onChange={(v) => {
+                v = parseInt(v);
+                setStartCycle(v);
+              }}
+              type="number"
+              placeholder=""
+              disabled={exporting}
+              className={cx(exporting && 'opacity-50 border-opacity-50', 'w-full')}
+              value={startCycle ?? ''}
+            />
+          </FormItem>
+          <FormItem label="End cycle" disabled={exporting}>
+            <Textbox
+              min={1}
+              max={Infinity}
+              onBlur={(e) => {
+                let v = parseInt(e.target.value);
+                v = isNaN(v) ? Math.max(startCycle + 1, parseInt(v)) : v;
+                setEndCycle(v);
+              }}
+              onChange={(v) => {
+                v = parseInt(v);
+                setEndCycle(v);
+              }}
+              type="number"
+              placeholder=""
+              disabled={exporting}
+              className={cx(exporting && 'opacity-50 border-opacity-50', 'w-full')}
+              value={endCycle ?? ''}
+            />
+          </FormItem>
+        </div>
+        <div className="flex flex-row gap-4">
+          <FormItem label="Sample rate" disabled={exporting}>
+            <Textbox
+              min={1}
+              max={Infinity}
+              onBlur={(e) => {
+                let v = parseInt(e.target.value);
+                v = isNaN(v) ? 1 : Math.max(1, v);
+                setSampleRate(v);
+              }}
+              onChange={(v) => {
+                v = parseInt(v);
+                setSampleRate(v);
+              }}
+              type="number"
+              placeholder=""
+              disabled={exporting}
+              className={cx(exporting && 'opacity-50 border-opacity-50')}
+              value={sampleRate ?? ''}
+            />
+          </FormItem>
+          <FormItem label="Maximum polyphony" disabled={exporting}>
+            <Textbox
+              min={1}
+              max={Infinity}
+              onBlur={(e) => {
+                let v = parseInt(e.target.value);
+                v = isNaN(v) ? Math.max(1, parseInt(v)) : v;
+                setMaxPolyphony(v);
+              }}
+              onChange={(v) => {
+                v = Math.max(1, parseInt(v));
+                setMaxPolyphony(v);
+              }}
+              type="number"
+              placeholder=""
+              disabled={exporting}
+              className={cx(exporting && 'opacity-50 border-opacity-50')}
+              value={maxPolyphony ?? ''}
+            />
+          </FormItem>
+        </div>
+        <div>
+          <Checkbox
+            label="Multi Channel Orbits"
+            onChange={(cbEvent) => {
+              const val = cbEvent.target.checked;
+              setMultiChannelOrbits(val);
+            }}
+            disabled={exporting}
+            value={multiChannelOrbits}
+          />
+        </div>
+        <button
+          className={cx('bg-background p-2 w-full rounded-md hover:opacity-75 relative', exporting && 'opacity-50')}
+          disabled={exporting}
+          onClick={async () => {
+            setExporting(true);
+            setTimeout(refreshProgress, 2000);
+            const modal = document.getElementById('exportProgressModal');
+            modal.showModal();
+            await handleExport(startCycle, endCycle, sampleRate, maxPolyphony, multiChannelOrbits, downloadName)
+              .then(() => {
+                const modal = document.getElementById('exportProgressModal');
+                modal.close();
+              })
+              .finally(() => {
+                setExporting(false);
+                setProgress(0);
+                setLength(1);
+              });
+          }}
+        >
+          <div
+            className="absolute top-0 left-0 right-0 bottom-0 backdrop-invert"
+            style={{
+              width: `${(exporting ? 1 : 0) + (progress / length) * 99}%`,
+            }}
+          />
+          <span className="text-foreground">{exporting ? 'Exporting...' : 'Export to WAV'}</span>
+        </button>
+      </div>
+      <dialog
+        closedby={exporting ? 'none' : 'closerequest'}
+        id="exportProgressModal"
+        className="text-md bg-background text-foreground rounded-lg backdrop:bg-background backdrop:opacity-25"
+      />
+    </>
+  );
+}

website/src/repl/components/panel/Panel.jsx

@@ -9,6 +9,7 @@ import { useLogger } from '../useLogger';
 import { WelcomeTab } from './WelcomeTab';
 import { PatternsTab } from './PatternsTab';
 import { ChevronLeftIcon, XMarkIcon } from '@heroicons/react/16/solid';
+import ExportTab from './ExportTab';
 
 const TAURI = typeof window !== 'undefined' && window.__TAURI__;
 
@@ -80,6 +81,7 @@ const tabNames = {
   patterns: 'patterns',
   sounds: 'sounds',
   reference: 'reference',
+  export: 'export',
   console: 'console',
   settings: 'settings',
 };
@@ -126,6 +128,8 @@ function PanelContent({ context, tab }) {
       return <SoundsTab />;
     case tabNames.reference:
       return <Reference />;
+    case tabNames.export:
+      return <ExportTab handleExport={context.handleExport} />;
     case tabNames.settings:
       return <SettingsTab started={context.started} />;
     case tabNames.files:

website/src/repl/useReplContext.jsx

@@ -9,11 +9,13 @@ import { getDrawContext } from '@strudel/draw';
 import { evaluate, transpiler } from '@strudel/transpiler';
 import {
   getAudioContextCurrentTime,
+  renderPatternAudio,
   webaudioOutput,
   resetGlobalEffects,
   resetLoadedSounds,
   initAudioOnFirstClick,
   resetDefaults,
+  initAudio,
 } from '@strudel/webaudio';
 import { setVersionDefaultsFrom } from './util.mjs';
 import { StrudelMirror, defaultSettings } from '@strudel/codemirror';
@@ -207,6 +209,30 @@ export function useReplContext() {
   const handleEvaluate = () => {
     editorRef.current.evaluate();
   };
+
+  const handleExport = async (begin, end, sampleRate, maxPolyphony, multiChannelOrbits, downloadName = undefined) => {
+    await editorRef.current.evaluate(false);
+    editorRef.current.repl.scheduler.stop();
+    await renderPatternAudio(
+      editorRef.current.repl.state.pattern,
+      editorRef.current.repl.scheduler.cps,
+      begin,
+      end,
+      sampleRate,
+      maxPolyphony,
+      multiChannelOrbits,
+      downloadName,
+    ).finally(async () => {
+      const { latestCode, maxPolyphony, audioDeviceName, multiChannelOrbits } = settingsMap.get();
+      await initAudio({
+        latestCode,
+        maxPolyphony,
+        audioDeviceName,
+        multiChannelOrbits,
+      });
+      editorRef.current.repl.scheduler.stop();
+    });
+  };
   const handleShuffle = async () => {
     const patternData = await getRandomTune();
     const code = patternData.code;
@@ -235,6 +261,7 @@ export function useReplContext() {
     handleShuffle,
     handleShare,
     handleEvaluate,
+    handleExport,
     init,
     error,
     editorRef,