add support for osc h type

packages/osc/src/models.ts

@@ -1,7 +1,7 @@
 export type OSCType = 's' | 'i' | 'f' | 'b' | 'T' | 'F' | 't' | 'r' | 'N';
 export type OSCArg = {
   type: OSCType;
-  value: string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | null;
+  value: string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | bigint | null;
 };
 
 export type OSCTimeTag = [number, number];
@@ -24,8 +24,10 @@ export type OSCMessage = {
 };
 
 export type OSCTypeConverter = {
-  toBuffer: (value: string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | null) => Uint8Array | undefined;
+  toBuffer: (
+    value: string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | null | bigint
+  ) => Uint8Array | undefined;
   fromBuffer: (
     buffer: Uint8Array
-  ) => [string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | null | undefined, Uint8Array];
+  ) => [string | number | Uint8Array | boolean | OSCTimeTag | OSCColor | null | bigint | undefined, Uint8Array];
 };

packages/osc/src/osc-types.ts

@@ -236,4 +236,32 @@ export const oscTypeConverterMap: { [key: string]: OSCTypeConverter } = {
       return [Number.MAX_SAFE_INTEGER, buffer];
     },
   },
+  h: {
+    toBuffer: (number) => {
+      const view = new DataView(new ArrayBuffer(8));
+
+      if (typeof number === 'number') {
+        view.setBigInt64(0, BigInt(number));
+      } else if (typeof number === 'bigint') {
+        view.setBigInt64(0, number);
+      } else {
+        throw new TypeError('osc type h toBuffer called with non number or bigint value');
+      }
+      return new Uint8Array(view.buffer);
+    },
+    fromBuffer: (buffer) => {
+      if (buffer.length < 8) {
+        throw new Error('osc int64 must be at least 8 bytes');
+      }
+
+
+      
+      const view = new DataView(new ArrayBuffer(8));
+      buffer.subarray(0,8).forEach((byte, index)=>{
+        view.setUint8(index,byte)
+      })
+
+      return [view.getBigInt64(0), buffer.subarray(8)];
+    },
+  },
 };