Web Audio: Fix ScriptProcessNode path when compiling with --closure=1.

Audio Worklets do not work with --closure=1 because the callback used
with emscripten_create_wasm_audio_worklet_processor_async never gets
fired which means miniaudio will never be able to escape from it's busy
wait loop.

Public issue https://github.com/mackron/miniaudio/issues/778

miniaudio.h

@@ -39791,7 +39791,7 @@ static ma_result ma_device_uninit__webaudio(ma_device* pDevice)
     #if defined(MA_USE_AUDIO_WORKLETS)
     {
         EM_ASM({
-            var device = miniaudio.get_device_by_index($0);
+            var device = window.miniaudio.get_device_by_index($0);
 
             if (device.streamNode !== undefined) {
                 device.streamNode.disconnect();
@@ -39806,7 +39806,7 @@ static ma_result ma_device_uninit__webaudio(ma_device* pDevice)
     #else
     {
         EM_ASM({
-            var device = miniaudio.get_device_by_index($0);
+            var device = window.miniaudio.get_device_by_index($0);
 
             /* Make sure all nodes are disconnected and marked for collection. */
             if (device.scriptNode !== undefined) {
@@ -39833,7 +39833,7 @@ static ma_result ma_device_uninit__webaudio(ma_device* pDevice)
 
     /* Clean up the device on the JS side. */
     EM_ASM({
-        miniaudio.untrack_device_by_index($0);
+        window.miniaudio.untrack_device_by_index($0);
     }, pDevice->webaudio.deviceIndex);
 
     ma_free(pDevice->webaudio.pIntermediaryBuffer, &pDevice->pContext->allocationCallbacks);
@@ -39998,7 +39998,6 @@ static void ma_audio_worklet_processor_created__webaudio(EMSCRIPTEN_WEBAUDIO_T a
         return;
     }
 
-
     pParameters->pDevice->webaudio.audioWorklet = emscripten_create_wasm_audio_worklet_node(audioContext, "miniaudio", &audioWorkletOptions, &ma_audio_worklet_process_callback__webaudio, pParameters->pDevice);
 
     /* With the audio worklet initialized we can now attach it to the graph. */
@@ -40138,7 +40137,6 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
         /* It's not clear if this can return an error. None of the tests in the Emscripten repository check for this, so neither am I for now. */
         pDevice->webaudio.audioContext = emscripten_create_audio_context(&audioContextAttributes);
 
-
         /*
         With the context created we can now create the worklet. We can only have a single worklet per audio
         context which means we'll need to craft this appropriately to handle duplex devices correctly.
@@ -40187,7 +40185,7 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
 
         /* We need to add an entry to the miniaudio.devices list on the JS side so we can do some JS/C interop. */
         pDevice->webaudio.deviceIndex = EM_ASM_INT({
-            return miniaudio.track_device({
+            return window.miniaudio.track_device({
                 webaudio: emscriptenGetAudioObject($0),
                 state:    1 /* 1 = ma_device_state_stopped */
             });
@@ -40272,11 +40270,11 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
             /* The node processing callback. */
             device.scriptNode.onaudioprocess = function(e) {
                 if (device.intermediaryBufferView == null || device.intermediaryBufferView.length == 0) {
-                    device.intermediaryBufferView = new Float32Array(Module.HEAPF32.buffer, pIntermediaryBuffer, bufferSize * channels);
+                    device.intermediaryBufferView = new Float32Array(HEAPF32.buffer, pIntermediaryBuffer, bufferSize * channels);
                 }
 
                 /* Do the capture side first. */
-                if (deviceType == miniaudio.device_type.capture || deviceType == miniaudio.device_type.duplex) {
+                if (deviceType == window.miniaudio.device_type.capture || deviceType == window.miniaudio.device_type.duplex) {
                     /* The data must be interleaved before being processed miniaudio. */
                     for (var iChannel = 0; iChannel < channels; iChannel += 1) {
                         var inputBuffer = e.inputBuffer.getChannelData(iChannel);
@@ -40290,7 +40288,7 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
                     _ma_device_process_pcm_frames_capture__webaudio(pDevice, bufferSize, pIntermediaryBuffer);
                 }
 
-                if (deviceType == miniaudio.device_type.playback || deviceType == miniaudio.device_type.duplex) {
+                if (deviceType == window.miniaudio.device_type.playback || deviceType == window.miniaudio.device_type.duplex) {
                     _ma_device_process_pcm_frames_playback__webaudio(pDevice, bufferSize, pIntermediaryBuffer);
 
                     for (var iChannel = 0; iChannel < e.outputBuffer.numberOfChannels; ++iChannel) {
@@ -40310,7 +40308,7 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
             };
 
             /* Now we need to connect our node to the graph. */
-            if (deviceType == miniaudio.device_type.capture || deviceType == miniaudio.device_type.duplex) {
+            if (deviceType == window.miniaudio.device_type.capture || deviceType == window.miniaudio.device_type.duplex) {
                 navigator.mediaDevices.getUserMedia({audio:true, video:false})
                     .then(function(stream) {
                         device.streamNode = device.webaudio.createMediaStreamSource(stream);
@@ -40322,13 +40320,13 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
                     });
             }
 
-            if (deviceType == miniaudio.device_type.playback) {
+            if (deviceType == window.miniaudio.device_type.playback) {
                 device.scriptNode.connect(device.webaudio.destination);
             }
 
             device.pDevice = pDevice;
 
-            return miniaudio.track_device(device);
+            return window.miniaudio.track_device(device);
         }, pConfig->deviceType, channels, sampleRate, periodSizeInFrames, pDevice->webaudio.pIntermediaryBuffer, pDevice);
 
         if (deviceIndex < 0) {
@@ -40338,7 +40336,7 @@ static ma_result ma_device_init__webaudio(ma_device* pDevice, const ma_device_co
         pDevice->webaudio.deviceIndex = deviceIndex;
 
         /* Grab the sample rate from the audio context directly. */
-        sampleRate = (ma_uint32)EM_ASM_INT({ return miniaudio.get_device_by_index($0).webaudio.sampleRate; }, deviceIndex);
+        sampleRate = (ma_uint32)EM_ASM_INT({ return window.miniaudio.get_device_by_index($0).webaudio.sampleRate; }, deviceIndex);
 
         if (pDescriptorCapture != NULL) {
             pDescriptorCapture->format              = ma_format_f32;
@@ -40368,9 +40366,9 @@ static ma_result ma_device_start__webaudio(ma_device* pDevice)
     MA_ASSERT(pDevice != NULL);
 
     EM_ASM({
-        var device = miniaudio.get_device_by_index($0);
+        var device = window.miniaudio.get_device_by_index($0);
         device.webaudio.resume();
-        device.state = miniaudio.device_state.started;
+        device.state = window.miniaudio.device_state.started;
     }, pDevice->webaudio.deviceIndex);
 
     return MA_SUCCESS;
@@ -40390,9 +40388,9 @@ static ma_result ma_device_stop__webaudio(ma_device* pDevice)
     do any kind of explicit draining.
     */
     EM_ASM({
-        var device = miniaudio.get_device_by_index($0);
+        var device = window.miniaudio.get_device_by_index($0);
         device.webaudio.suspend();
-        device.state = miniaudio.device_state.stopped;
+        device.state = window.miniaudio.device_state.stopped;
     }, pDevice->webaudio.deviceIndex);
 
     ma_device__on_notification_stopped(pDevice);
@@ -40451,6 +40449,7 @@ static ma_result ma_context_init__webaudio(ma_context* pContext, const ma_contex
             window.miniaudio.device_state.started = $4;
 
             /* Device cache for mapping devices to indexes for JavaScript/C interop. */
+            let miniaudio = window.miniaudio;
             miniaudio.devices = [];
 
             miniaudio.track_device = function(device) {
@@ -40502,10 +40501,10 @@ static ma_result ma_context_init__webaudio(ma_context* pContext, const ma_contex
                     var device = miniaudio.devices[i];
                     if (device != null &&
                         device.webaudio != null &&
-                        device.state === window.miniaudio.device_state.started) {
+                        device.state === miniaudio.device_state.started) {
 
                         device.webaudio.resume().then(() => {
-                                Module._ma_device__on_notification_unlocked(device.pDevice);
+                            _ma_device__on_notification_unlocked(device.pDevice);
                         },
                         (error) => {console.error("Failed to resume audiocontext", error);
                         });