Simplified test further (printf the result)

Author: cwoffenden

test/webaudio/audio_worklet_tone_generator.c

@@ -1,6 +1,8 @@
 #include <emscripten/webaudio.h>
 #include <emscripten/em_math.h>
 
+#include <stdio.h>
+
 // This program tests that sharing the WebAssembly Memory works between the
 // audio generator thread and the main browser UI thread.  Two sliders,
 // frequency and volume, can be adjusted on the HTML page, and the audio thread
@@ -68,9 +70,6 @@ bool observe_test_end(double time, void *userData) {
 void AudioWorkletProcessorCreated(EMSCRIPTEN_WEBAUDIO_T audioContext, bool success, void *userData) {
   if (!success) return;
 
-  // Get the buffer's quantum size, we'll report this later
-  int quantumSize = emscripten_audio_context_quantum_size(audioContext);
-
   // Specify the input and output node configurations for the Wasm Audio
   // Worklet. A simple setup with single mono output channel here, and no
   // inputs.
@@ -101,12 +100,7 @@ void AudioWorkletProcessorCreated(EMSCRIPTEN_WEBAUDIO_T audioContext, bool succe
         audioContext.suspend();
       }
     };
-
-    // Report the buffer size out of interest
-    let quantumText = document.createElement('p');
-    quantumText.innerHTML += `(Buffer quantum size: ${$1})`;
-    document.body.appendChild(quantumText);
-  }, audioContext, quantumSize);
+  }, audioContext);
 
 #ifdef REPORT_RESULT
   emscripten_set_timeout_loop(observe_test_end, 10, 0);
@@ -156,6 +150,12 @@ int main() {
 
   EMSCRIPTEN_WEBAUDIO_T context = emscripten_create_audio_context(&attrs);
 
+  // Get the context's quantum size. Once the audio API allows this to be user
+  // defined or exposes the hardware's own value, this will be needed to
+  // determine the worklet stack size.
+  int quantumSize = emscripten_audio_context_quantum_size(context);
+  printf("Context quantum size: %d\n", quantumSize);
+
   // and kick off Audio Worklet scope initialization, which shares the Wasm
   // Module and Memory to the AudioWorklet scope and initializes its stack.
   emscripten_start_wasm_audio_worklet_thread_async(context, wasmAudioWorkletStack, sizeof(wasmAudioWorkletStack), WebAudioWorkletThreadInitialized, 0);