add csaw

packages/superdough-wasm/csaw/.gitignore

@@ -0,0 +1 @@
+csaw

packages/superdough-wasm/csaw/csaw.c

@@ -0,0 +1,7 @@
+#include <math.h>
+#include <emscripten.h>
+
+EMSCRIPTEN_KEEPALIVE
+double saw(double t, double f) {
+    return fmod((f * t * 1.0), 1.0) - 0.5 * 2.0;
+}

packages/superdough-wasm/main.js

@@ -5,7 +5,8 @@ document.getElementById('play').addEventListener('click', async () => {
   await ac.audioWorklet.addModule('./worklet.js');
   const node = new AudioWorkletNode(ac, 'saw-processor');
 
-  let res = await fetch('./zigsaw/zigsaw.wasm');
+  //let res = await fetch('./zigsaw/zigsaw.wasm');
+  let res = await fetch('./csaw/csaw.wasm');
   //let res = await fetch('./rustsaw/pkg/rustsaw_bg.wasm');
   const buffer = await res.arrayBuffer();
   node.port.onmessage = (e) => {