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rsgp/src/App.svelte

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Svelte

<script lang="ts">
import { onMount } from "svelte";
import WaveformDisplay from "./lib/components/WaveformDisplay.svelte";
import VUMeter from "./lib/components/VUMeter.svelte";
import { engines } from "./lib/audio/engines/registry";
import type { SynthEngine } from "./lib/audio/engines/SynthEngine";
import type { EngineType } from "./lib/audio/engines/SynthEngine";
import { AudioService } from "./lib/audio/services/AudioService";
import { downloadWAV } from "./lib/audio/utils/WAVEncoder";
import {
loadVolume,
saveVolume,
loadDuration,
saveDuration,
} from "./lib/utils/settings";
import { generateRandomColor } from "./lib/utils/colors";
import {
getRandomProcessor,
getAllProcessors,
} from "./lib/audio/processors/registry";
import type { AudioProcessor } from "./lib/audio/processors/AudioProcessor";
import { Sample } from "./lib/audio/engines/Sample";
import { Input } from "./lib/audio/engines/Input";
let currentEngineIndex = 0;
let engine = engines[currentEngineIndex];
let engineType: EngineType = engine.getType();
const audioService = new AudioService();
let currentParams: any = null;
let currentBuffer: AudioBuffer | null = null;
let duration = loadDuration();
let volume = loadVolume();
let playbackPosition = -1;
let waveformColor = generateRandomColor();
let showModal = true;
let isProcessed = false;
let showProcessorPopup = false;
let popupTimeout: ReturnType<typeof setTimeout> | null = null;
let isRecording = false;
let isDragOver = false;
const allProcessors = getAllProcessors();
$: showDuration = engineType !== 'sample';
$: showRandomButton = engineType === 'generative';
$: showRecordButton = engineType === 'input';
$: showFileDropZone = engineType === 'sample' && !currentBuffer;
$: showMutateButton = engineType === 'generative' && !isProcessed && currentBuffer;
onMount(() => {
audioService.setVolume(volume);
audioService.setPlaybackUpdateCallback((position) => {
playbackPosition = position;
});
generateRandom();
});
function generateRandom() {
currentParams = engine.randomParams();
waveformColor = generateRandomColor();
isProcessed = false;
regenerateBuffer();
}
function mutate() {
if (!currentParams) {
generateRandom();
return;
}
currentParams = engine.mutateParams(currentParams);
waveformColor = generateRandomColor();
regenerateBuffer();
}
function regenerateBuffer() {
if (!currentParams) return;
const sampleRate = audioService.getSampleRate();
const data = engine.generate(currentParams, sampleRate, duration);
currentBuffer = audioService.createAudioBuffer(data);
audioService.play(currentBuffer);
}
function replaySound() {
if (currentBuffer) {
audioService.play(currentBuffer);
}
}
function download() {
if (!currentBuffer) return;
downloadWAV(currentBuffer, "synth-sound.wav");
}
function processSound() {
if (!currentBuffer) return;
const processor = getRandomProcessor();
applyProcessor(processor);
}
function processWithSpecificProcessor(processor: AudioProcessor) {
if (!currentBuffer) return;
hideProcessorPopup();
applyProcessor(processor);
}
function handlePopupMouseEnter() {
if (popupTimeout) {
clearTimeout(popupTimeout);
}
showProcessorPopup = true;
popupTimeout = setTimeout(() => {
showProcessorPopup = false;
}, 2000);
}
function handlePopupMouseLeave() {
if (popupTimeout) {
clearTimeout(popupTimeout);
}
popupTimeout = setTimeout(() => {
showProcessorPopup = false;
}, 200);
}
function hideProcessorPopup() {
if (popupTimeout) {
clearTimeout(popupTimeout);
}
showProcessorPopup = false;
}
async function applyProcessor(processor: AudioProcessor) {
if (!currentBuffer) return;
const leftChannel = currentBuffer.getChannelData(0);
const rightChannel = currentBuffer.getChannelData(1);
const [processedLeft, processedRight] = await processor.process(
leftChannel,
rightChannel,
);
currentBuffer = audioService.createAudioBuffer([
processedLeft,
processedRight,
]);
isProcessed = true;
audioService.play(currentBuffer);
}
function handleVolumeChange(event: Event) {
const target = event.target as HTMLInputElement;
volume = parseFloat(target.value);
audioService.setVolume(volume);
saveVolume(volume);
}
function handleDurationChange(event: Event) {
const target = event.target as HTMLInputElement;
duration = parseFloat(target.value);
saveDuration(duration);
}
function switchEngine(index: number) {
currentEngineIndex = index;
engine = engines[index];
engineType = engine.getType();
currentBuffer = null;
currentParams = null;
isProcessed = false;
if (engineType === 'generative') {
generateRandom();
}
}
async function handleFileInput(event: Event) {
const input = event.target as HTMLInputElement;
if (!input.files || input.files.length === 0) return;
const file = input.files[0];
await loadAudioFile(file);
}
async function loadAudioFile(file: File) {
if (!(engine instanceof Sample)) return;
try {
await engine.loadFile(file);
currentParams = engine.randomParams();
waveformColor = generateRandomColor();
isProcessed = false;
regenerateBuffer();
} catch (error) {
console.error('Failed to load audio file:', error);
alert(`Failed to load audio file: ${error}`);
}
}
async function recordAudio() {
if (!(engine instanceof Input)) return;
if (isRecording) return;
try {
isRecording = true;
await engine.record(duration);
currentParams = engine.randomParams();
waveformColor = generateRandomColor();
isProcessed = false;
regenerateBuffer();
} catch (error) {
console.error('Failed to record audio:', error);
alert(`Failed to record audio: ${error}`);
} finally {
isRecording = false;
}
}
function handleDrop(event: DragEvent) {
event.preventDefault();
isDragOver = false;
if (!event.dataTransfer) return;
const files = event.dataTransfer.files;
if (files.length === 0) return;
const file = files[0];
if (!file.type.startsWith('audio/')) {
alert('Please drop an audio file');
return;
}
loadAudioFile(file);
}
function handleDragOver(event: DragEvent) {
event.preventDefault();
isDragOver = true;
}
function handleDragLeave(event: DragEvent) {
event.preventDefault();
isDragOver = false;
}
async function closeModal() {
showModal = false;
await audioService.initialize();
}
function handleKeydown(event: KeyboardEvent) {
// Ignore if typing in an input
if (event.target instanceof HTMLInputElement) return;
const key = event.key.toLowerCase();
// Close modal with Escape key
if (key === "escape" && showModal) {
closeModal();
return;
}
switch (key) {
case "m":
mutate();
break;
case "r":
generateRandom();
break;
case "p":
processSound();
break;
case "s":
download();
break;
case "arrowleft":
event.preventDefault();
const durationDecrement = event.shiftKey ? 1 : 0.05;
duration = Math.max(0.05, duration - durationDecrement);
saveDuration(duration);
break;
case "arrowright":
event.preventDefault();
const durationIncrement = event.shiftKey ? 1 : 0.05;
duration = Math.min(32, duration + durationIncrement);
saveDuration(duration);
break;
case "arrowdown":
event.preventDefault();
const volumeDecrement = event.shiftKey ? 0.2 : 0.05;
volume = Math.max(0, volume - volumeDecrement);
audioService.setVolume(volume);
saveVolume(volume);
break;
case "arrowup":
event.preventDefault();
const volumeIncrement = event.shiftKey ? 0.2 : 0.05;
volume = Math.min(1, volume + volumeIncrement);
audioService.setVolume(volume);
saveVolume(volume);
break;
}
}
</script>
<svelte:window onkeydown={handleKeydown} />
<div class="container">
<div class="top-bar">
<div class="mode-buttons">
{#each engines as engine, index}
<button
class="engine-button"
class:active={currentEngineIndex === index}
data-description={engine.getDescription()}
onclick={() => switchEngine(index)}
>
{engine.getName()}
</button>
{/each}
</div>
<div class="controls-group">
{#if showDuration}
<div class="slider-control duration-slider">
<label for="duration">Duration: {duration.toFixed(2)}s</label>
<input
id="duration"
type="range"
min="0.05"
max="32"
step="0.01"
value={duration}
oninput={handleDurationChange}
/>
</div>
{/if}
<div class="slider-control">
<label for="volume">Volume</label>
<input
id="volume"
type="range"
min="0"
max="1"
step="0.01"
value={volume}
oninput={handleVolumeChange}
/>
</div>
</div>
</div>
<div class="main-area">
<div class="waveform-container">
{#if showFileDropZone}
<div
class="file-drop-zone"
class:drag-over={isDragOver}
role="button"
tabindex="0"
ondrop={handleDrop}
ondragover={handleDragOver}
ondragleave={handleDragLeave}
>
<div class="drop-zone-content">
<h2>Drop an audio file here</h2>
<label for="file-input" class="file-input-label">
<input
id="file-input"
type="file"
accept="audio/*"
onchange={handleFileInput}
style="display: none;"
/>
Choose a file
</label>
</div>
</div>
{:else}
<WaveformDisplay
buffer={currentBuffer}
color={waveformColor}
{playbackPosition}
onclick={replaySound}
/>
{/if}
<div class="bottom-controls">
{#if showRandomButton}
<button onclick={generateRandom}>Random (R)</button>
{/if}
{#if showRecordButton}
<button onclick={recordAudio} disabled={isRecording}>
{isRecording ? 'Recording...' : 'Record'}
</button>
{/if}
{#if showMutateButton}
<button onclick={mutate}>Mutate (M)</button>
{/if}
{#if currentBuffer}
<div
class="process-button-container"
role="group"
onmouseenter={handlePopupMouseEnter}
onmouseleave={handlePopupMouseLeave}
>
<button onclick={processSound}>Process (P)</button>
{#if showProcessorPopup}
<div class="processor-popup">
{#each allProcessors as processor}
<button
class="processor-tile"
data-description={processor.getDescription()}
onclick={() => processWithSpecificProcessor(processor)}
>
{processor.getName()}
</button>
{/each}
</div>
{/if}
</div>
<button onclick={download}>Download (D)</button>
{/if}
</div>
</div>
<div class="vu-meter-container">
<VUMeter buffer={currentBuffer} {playbackPosition} />
</div>
</div>
{#if showModal}
<div
class="modal-overlay"
role="button"
tabindex="0"
onclick={closeModal}
onkeydown={(e) => e.key === "Enter" && closeModal()}
>
<div
class="modal-content"
role="dialog"
aria-labelledby="modal-title"
tabindex="-1"
onclick={(e) => e.stopPropagation()}
onkeydown={(e) => e.stopPropagation()}
>
<h1 id="modal-title">Vending Machine</h1>
<p class="description">
Oh, looks like you found a sound vending machine. This one seems
slightly broken and it seems that you can get sounds for free... Have
fun!
</p>
<div class="modal-links">
<p>
Created by <a
href="https://raphaelforment.fr"
target="_blank"
rel="noopener noreferrer">Raphaël Forment (BuboBubo)</a
>
</p>
<p>
Licensed under <a
href="https://www.gnu.org/licenses/gpl-3.0.html"
target="_blank"
rel="noopener noreferrer">GPL 3.0</a
>
</p>
</div>
<button class="modal-close" onclick={closeModal}>Start</button>
</div>
</div>
{/if}
</div>
<style>
.container {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
}
.top-bar {
display: flex;
justify-content: space-between;
align-items: center;
gap: 1rem;
padding: 0.5rem;
background-color: #1a1a1a;
border-bottom: 1px solid #333;
}
.mode-buttons {
display: flex;
gap: 0.5rem;
}
.engine-button {
opacity: 0.7;
position: relative;
}
.engine-button.active {
opacity: 1;
border-color: #646cff;
}
.engine-button::after {
content: attr(data-description);
position: absolute;
top: 100%;
left: 0;
padding: 0.5rem 0.75rem;
background-color: #0a0a0a;
border: 1px solid #444;
color: #ccc;
font-size: 0.85rem;
width: 30vw;
white-space: normal;
word-wrap: break-word;
pointer-events: none;
opacity: 0;
transition: opacity 0.2s;
z-index: 1000;
}
.engine-button:hover::after {
opacity: 1;
}
.controls-group {
display: flex;
gap: 1rem;
align-items: center;
}
.slider-control {
display: flex;
align-items: center;
gap: 0.5rem;
}
.slider-control label {
font-size: 0.9rem;
white-space: nowrap;
}
.slider-control input[type="range"] {
width: 100px;
}
.duration-slider input[type="range"] {
width: 300px;
}
.main-area {
flex: 1;
display: flex;
background-color: #0a0a0a;
overflow: hidden;
}
.waveform-container {
flex: 1;
position: relative;
display: flex;
align-items: center;
justify-content: center;
overflow: hidden;
}
.vu-meter-container {
width: 5%;
min-width: 40px;
max-width: 80px;
border-left: 1px solid #333;
}
.bottom-controls {
position: absolute;
bottom: 2rem;
left: 50%;
transform: translateX(-50%);
display: flex;
gap: 1rem;
}
input[type="range"] {
cursor: pointer;
-webkit-appearance: none;
appearance: none;
background: transparent;
height: 20px;
border-radius: 0;
}
input[type="range"]::-webkit-slider-track {
background: #333;
height: 4px;
border: 1px solid #444;
border-radius: 0;
}
input[type="range"]::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 16px;
height: 16px;
background: #fff;
border: 1px solid #000;
border-radius: 0;
cursor: pointer;
margin-top: -6px;
}
input[type="range"]::-webkit-slider-thumb:hover {
background: #ddd;
}
input[type="range"]::-moz-range-track {
background: #333;
height: 4px;
border: 1px solid #444;
border-radius: 0;
}
input[type="range"]::-moz-range-thumb {
width: 16px;
height: 16px;
background: #fff;
border: 1px solid #000;
border-radius: 0;
cursor: pointer;
}
input[type="range"]::-moz-range-thumb:hover {
background: #ddd;
}
.modal-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.8);
display: flex;
justify-content: center;
align-items: center;
z-index: 2000;
}
.modal-content {
background-color: #000;
border: 2px solid #fff;
padding: 2rem;
max-width: 500px;
width: 90%;
color: #fff;
}
.modal-content h1 {
margin: 0 0 1rem 0;
font-size: 2rem;
font-weight: bold;
}
.modal-content .description {
margin: 0 0 1.5rem 0;
line-height: 1.6;
color: #ccc;
}
.modal-links {
margin: 1.5rem 0;
padding: 1rem 0;
border-top: 1px solid #333;
border-bottom: 1px solid #333;
}
.modal-links p {
margin: 0.5rem 0;
font-size: 0.9rem;
color: #ccc;
}
.modal-links a {
color: #646cff;
text-decoration: none;
}
.modal-links a:hover {
text-decoration: underline;
}
.modal-close {
margin-top: 1rem;
width: 100%;
padding: 0.75rem;
font-size: 1.1rem;
background-color: #fff;
color: #000;
border: none;
cursor: pointer;
font-weight: bold;
}
.modal-close:hover {
background-color: #ddd;
}
.process-button-container {
position: relative;
}
.processor-popup {
position: absolute;
bottom: 100%;
left: 50%;
transform: translateX(-50%);
background-color: #000;
border: 2px solid #fff;
padding: 0.75rem;
z-index: 1000;
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 0.5rem;
width: 600px;
margin-bottom: 0.5rem;
}
.processor-tile {
background-color: #1a1a1a;
border: 1px solid #444;
padding: 0.6rem 0.4rem;
text-align: center;
cursor: pointer;
transition: background-color 0.2s, border-color 0.2s;
font-size: 0.85rem;
color: #fff;
position: relative;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.processor-tile:hover {
background-color: #2a2a2a;
border-color: #646cff;
}
.processor-tile::after {
content: attr(data-description);
position: absolute;
bottom: 100%;
left: 50%;
transform: translateX(-50%);
padding: 0.5rem 0.75rem;
background-color: #0a0a0a;
border: 1px solid #444;
color: #ccc;
font-size: 0.85rem;
width: max-content;
max-width: 300px;
white-space: normal;
word-wrap: break-word;
pointer-events: none;
opacity: 0;
transition: opacity 0.2s;
z-index: 1001;
margin-bottom: 0.25rem;
}
.processor-tile:hover::after {
opacity: 1;
}
.file-drop-zone {
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
border: 2px dashed #444;
background-color: #0a0a0a;
transition: all 0.2s;
}
.file-drop-zone.drag-over {
border-color: #646cff;
background-color: #1a1a1a;
}
.drop-zone-content {
text-align: center;
color: #ccc;
}
.drop-zone-content h2 {
font-size: 1.5rem;
margin-bottom: 1rem;
color: #fff;
}
.drop-zone-content p {
margin: 1rem 0;
font-size: 1rem;
}
.file-input-label {
display: inline-block;
padding: 0.75rem 1.5rem;
background-color: #646cff;
color: #fff;
border: 1px solid #646cff;
cursor: pointer;
transition: background-color 0.2s;
font-size: 1rem;
}
.file-input-label:hover {
background-color: #535bf2;
}
button:disabled {
opacity: 0.5;
cursor: not-allowed;
}
</style>