feat: add physically explicit narrowband MUSIC

packages/webgpu-kernels/compute.js

@@ -1,5 +1,6 @@
 import { computeDasMap } from "../acoustics-core/das.js";
 import { computeGccPhatMap } from "../acoustics-core/gcc-phat.js";
+import { computeLocalizationMap } from "../acoustics-core/localization.js";
 import {
   isDasAlgorithm,
   requireLocalizationAlgorithmDefinition,
@@ -79,9 +80,10 @@ export async function computeDasWithBackend(options, dependencies = {}) {
 }
 
 /**
- * Execute any registered localization algorithm. GCC-PHAT currently uses its
- * portable CPU implementation for both `auto` and `cpu`; an explicit WebGPU
- * request is rejected instead of silently changing the requested backend.
+ * Execute any registered localization algorithm. CPU-only algorithms use
+ * their portable implementation for both `auto` and `cpu`; an explicit
+ * WebGPU request is rejected instead of silently changing the requested
+ * backend.
  */
 export async function computeLocalizationWithBackend(options, dependencies = {}) {
   const algorithm = requireLocalizationAlgorithmDefinition(
@@ -90,7 +92,7 @@ export async function computeLocalizationWithBackend(options, dependencies = {})
   if (isDasAlgorithm(algorithm.id)) {
     return computeDasBackend(options, dependencies);
   }
-  if (algorithm.id !== "gcc-phat") {
+  if (algorithm.id !== "gcc-phat" && algorithm.id !== "music") {
     throw new RangeError("No backend dispatcher is registered for " + algorithm.id + ".");
   }
 
@@ -103,9 +105,8 @@ export async function computeLocalizationWithBackend(options, dependencies = {})
   if (requestedBackend !== "auto" && requestedBackend !== "cpu") {
     throw new TypeError(`unsupported localization backend: ${requestedBackend}`);
   }
-  const computeCpu =
-    dependencies.computeGccCpu ??
-    dependencies.computeCpu ??
-    computeGccPhatMap;
+  const computeCpu = algorithm.id === "gcc-phat"
+    ? dependencies.computeGccCpu ?? dependencies.computeCpu ?? computeGccPhatMap
+    : dependencies.computeMusicCpu ?? dependencies.computeCpu ?? computeLocalizationMap;
   return computeCpu(options);
 }