audio: Use the larget buffer size for go2cpp

audio/buffersize_js.go

@@ -0,0 +1,29 @@
+// Copyright 2021 The Ebiten Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package audio
+
+import (
+	"syscall/js"
+)
+
+var isGo2Cpp bool = js.Global().Get("go2cpp").Truthy()
+
+func bufferSize() int {
+	// On some devices targetted by go2cpp, 8192 is not enough. Use x2 bytes.
+	if isGo2Cpp {
+		return 16384
+	}
+	return 8192
+}

audio/buffersize_notmobile.go

@@ -14,6 +14,7 @@
 
 // +build !android
 // +build !ios
+// +build !js
 
 package audio