wip

# Conflicts:
#	codecs/cpp.Dockerfile
#	codecs/imagequant/example.html
#	codecs/webp/dec/webp_dec.d.ts
#	codecs/webp/dec/webp_dec.js
#	codecs/webp/dec/webp_dec.wasm
#	codecs/webp/enc/webp_enc.d.ts
#	codecs/webp/enc/webp_enc.js
#	codecs/webp/enc/webp_enc.wasm
#	package-lock.json
#	package.json
#	src/codecs/tiny.webp
#	src_old/codecs/encoders.ts
#	src_old/codecs/processor-worker/tiny.avif
#	src_old/codecs/processor-worker/tiny.webp
#	src_old/codecs/tiny.webp
#	src_old/components/compress/index.tsx
#	src_old/lib/util.ts
#	src_old/sw/util.ts

src_old/codecs/webp/encoder.ts

@@ -0,0 +1,22 @@
+import webp_enc, { WebPModule } from '../../../codecs/webp/enc/webp_enc';
+import wasmUrl from '../../../codecs/webp/enc/webp_enc.wasm';
+import { EncodeOptions } from './encoder-meta';
+import { initEmscriptenModule } from '../util';
+
+let emscriptenModule: Promise<WebPModule>;
+
+export async function encode(
+  data: ImageData,
+  options: EncodeOptions,
+): Promise<ArrayBuffer> {
+  if (!emscriptenModule)
+    emscriptenModule = initEmscriptenModule(webp_enc, wasmUrl);
+
+  const module = await emscriptenModule;
+  const result = module.encode(data.data, data.width, data.height, options);
+  if (!result) {
+    throw new Error('Encoding error.');
+  }
+  // wasm can’t run on SharedArrayBuffers, so we hard-cast to ArrayBuffer.
+  return result.buffer as ArrayBuffer;
+}