Add a codesize test for AUDIO_WORKLET. NFC

test/code_size/audio_worklet_wasm.js

@@ -0,0 +1,176 @@
+var g = globalThis.Module || "undefined" != typeof Module ? Module : {}, k = "undefined" !== typeof AudioWorkletGlobalScope, m = "em-ww" == globalThis.name, n, p, q, r, t, x, U, V, A, Q, C, W;
+
+m && !k && (onmessage = a => {
+    onmessage = null;
+    a = a.data;
+    g ||= {};
+    Object.assign(g, a);
+    t = a.mem;
+    u();
+    v();
+    a.wasm = a.mem = 0;
+});
+
+function u() {
+    var a = t.buffer;
+    p = new Uint8Array(a);
+    n = new Int32Array(a);
+    g.HEAPU32 = q = new Uint32Array(a);
+    g.HEAPF32 = r = new Float32Array(a);
+}
+
+if (k || !m) t = g.mem || new WebAssembly.Memory({
+    initial: 256,
+    maximum: 256,
+    shared: !0
+}), u();
+
+var w = [], y = a => {
+    a = a.data;
+    let b = a._wsc;
+    b && x.get(b)(...a.x);
+}, z = a => {
+    w.push(a);
+}, B = a => A(a), D = () => C(), G = (a, b, c, e) => {
+    b = E[b];
+    E[a].connect(b.destination || b, c, e);
+}, E = {}, H = 0, I = "undefined" != typeof TextDecoder ? new TextDecoder : void 0, J = (a = 0) => {
+    for (var b = p, c = a + NaN, e = a; b[e] && !(e >= c); ) ++e;
+    if (16 < e - a && b.buffer && I) return I.decode(b.slice(a, e));
+    for (c = ""; a < e; ) {
+        var d = b[a++];
+        if (d & 128) {
+            var h = b[a++] & 63;
+            if (192 == (d & 224)) c += String.fromCharCode((d & 31) << 6 | h); else {
+                var f = b[a++] & 63;
+                d = 224 == (d & 240) ? (d & 15) << 12 | h << 6 | f : (d & 7) << 18 | h << 12 | f << 6 | b[a++] & 63;
+                65536 > d ? c += String.fromCharCode(d) : (d -= 65536, c += String.fromCharCode(55296 | d >> 10, 56320 | d & 1023));
+            }
+        } else c += String.fromCharCode(d);
+    }
+    return c;
+}, K = a => {
+    var b = window.AudioContext || window.webkitAudioContext;
+    if (a >>= 2) {
+        var c = q[a] ? (c = q[a]) ? J(c) : "" : void 0;
+        a = {
+            latencyHint: c,
+            sampleRate: n[a + 1] || void 0
+        };
+    } else a = void 0;
+    if (c = b) b = new b(a), E[++H] = b, c = H;
+    return c;
+}, L = (a, b, c, e, d) => {
+    if (c >>= 2) {
+        var h = n[c], f = n[c + 1];
+        if (q[c + 2]) {
+            var l = q[c + 2] >> 2;
+            c = n[c + 1];
+            let F = [];
+            for (;c--; ) F.push(q[l++]);
+            l = F;
+        } else l = void 0;
+        e = {
+            numberOfInputs: h,
+            numberOfOutputs: f,
+            outputChannelCount: l,
+            processorOptions: {
+                cb: e,
+                ud: d,
+                sc: 128
+            }
+        };
+    } else e = void 0;
+    a = new AudioWorkletNode(E[a], b ? J(b) : "", e);
+    E[++H] = a;
+    return H;
+}, M = (a, b, c, e) => {
+    b >>= 2;
+    let d = [], h = q[b + 1], f = q[b + 2] >> 2, l = 0;
+    for (;h--; ) d.push({
+        name: l++,
+        defaultValue: r[f++],
+        minValue: r[f++],
+        maxValue: r[f++],
+        automationRate: [ "a", "k" ][q[f++]] + "-rate"
+    });
+    h = E[a].audioWorklet.s.port;
+    f = h.postMessage;
+    b = (b = q[b]) ? J(b) : "";
+    f.call(h, {
+        _wpn: b,
+        ap: d,
+        ch: a,
+        cb: c,
+        ud: e
+    });
+}, N = () => !1, O = 1, P = a => {
+    a = a.data;
+    let b = a._wsc;
+    b && x.get(b)(...a.x);
+}, R = a => Q(a), S = (a, b, c, e, d) => {
+    let h = E[a], f = h.audioWorklet, l = () => {
+        x.get(e)(a, 0, d);
+    };
+    if (!f) return l();
+    f.addModule("a.aw.js").then((() => {
+        f.s = new AudioWorkletNode(h, "message", {
+            processorOptions: {
+                $ww: O++,
+                wasm: g.wasm,
+                mem: t,
+                sb: b,
+                sz: c
+            }
+        });
+        f.s.port.onmessage = P;
+        return f.addModule(g.js);
+    })).then((() => {
+        x.get(e)(a, 1, d);
+    })).catch(l);
+};
+
+function T(a) {
+    let b = document.createElement("button");
+    b.innerHTML = "Toggle playback";
+    document.body.appendChild(b);
+    a = E[a];
+    b.onclick = () => {
+        "running" != a.state ? a.resume() : a.suspend();
+    };
+}
+
+function v() {
+    U = {
+        f: T,
+        g: G,
+        d: K,
+        h: L,
+        e: M,
+        b: N,
+        c: S,
+        a: t
+    };
+    WebAssembly.instantiate(g.wasm, {
+        a: U
+    }).then((a => {
+        a = a.instance.exports;
+        V = a.j;
+        A = a.l;
+        Q = a.m;
+        C = a.n;
+        W = a.o;
+        x = a.k;
+        g.stackSave = D;
+        g.stackAlloc = R;
+        g.stackRestore = B;
+        g.wasmTable = x;
+        m ? (a = g, W(a.sb, a.sz), "undefined" === typeof AudioWorkletGlobalScope && (removeEventListener("message", z), 
+        w = w.forEach(y), addEventListener("message", y))) : a.i();
+        m || V();
+    }));
+}
+
+k && v();
+
+m || v();

test/code_size/audio_worklet_wasm.json

@@ -0,0 +1,12 @@
+{
+  "a.html": 519,
+  "a.html.gz": 364,
+  "a.js": 2851,
+  "a.js.gz": 1583,
+  "a.aw.js": 2551,
+  "a.aw.js.gz": 922,
+  "a.wasm": 1287,
+  "a.wasm.gz": 859,
+  "total": 7208,
+  "total_gz": 3728
+}

test/test_other.py

@@ -11725,6 +11725,7 @@ def test_function_exports_are_small(self, args, opt, closure):
       self.assertEqual(num_times_export_is_referenced, 1)
 
   @parameterized({
+    'audio_worklet': ('audio_worklet', False, True),
     'hello_world_wasm': ('hello_world', False, True),
     'hello_world_wasm2js': ('hello_world', True, True),
     'random_printf_wasm': ('random_printf', False),
@@ -11739,7 +11740,7 @@ def test_function_exports_are_small(self, args, opt, closure):
     'hello_embind': ('embind_hello', False),
   })
   @crossplatform
-  def test_minimal_runtime_code_size(self, test_name, js, compare_js_output=False):
+  def test_minimal_runtime_code_size(self, test_name, wasm2js, compare_js_output=False):
     smallest_code_size_args = ['-sMINIMAL_RUNTIME=2',
                                '-sENVIRONMENT=web',
                                '-sTEXTDECODER=2',
@@ -11763,8 +11764,6 @@ def test_minimal_runtime_code_size(self, test_name, js, compare_js_output=False)
                                '-DNDEBUG',
                                '-ffast-math']
 
-    wasm2js = ['-sWASM=0']
-
     math_sources = [test_file('code_size/math.c')]
     hello_world_sources = [test_file('small_hello_world.c'),
                            '-sMALLOC=none']
@@ -11778,6 +11777,7 @@ def test_minimal_runtime_code_size(self, test_name, js, compare_js_output=False)
                            '-sMODULARIZE']
     hello_webgl2_sources = hello_webgl_sources + ['-sMAX_WEBGL_VERSION=2']
     hello_wasm_worker_sources = [test_file('wasm_worker/wasm_worker_code_size.c'), '-sWASM_WORKERS', '-sENVIRONMENT=web,worker']
+    audio_worklet_sources = [test_file('webaudio/audioworklet.c'), '-sWASM_WORKERS', '-sAUDIO_WORKLET', '-sENVIRONMENT=web,worker', '-sTEXTDECODER=1']
     embind_hello_sources = [test_file('code_size/embind_hello_world.cpp'), '-lembind']
     embind_val_sources = [test_file('code_size/embind_val_hello_world.cpp'),
                           '-lembind',
@@ -11792,6 +11792,7 @@ def test_minimal_runtime_code_size(self, test_name, js, compare_js_output=False)
       'math': math_sources,
       'hello_webgl2': hello_webgl2_sources,
       'hello_wasm_worker': hello_wasm_worker_sources,
+      'audio_worklet': audio_worklet_sources,
       'embind_val': embind_val_sources,
       'embind_hello': embind_hello_sources,
     }[test_name]
@@ -11802,11 +11803,13 @@ def print_percent(actual, expected):
       return ' ({:+.2f}%)'.format((actual - expected) * 100.0 / expected)
 
     outputs = ['a.html', 'a.js']
+    if '-sAUDIO_WORKLET' in sources:
+      outputs += ['a.aw.js']
 
     args = smallest_code_size_args[:]
 
-    if js:
-      args += wasm2js
+    if wasm2js:
+      args += ['-sWASM=0']
       test_name += '_wasm2js'
     else:
       outputs += ['a.wasm']