Update

Kha/Backends/HTML5-Worker/kha/graphics4/ComputeShader.hx

@@ -0,0 +1,22 @@
+package kha.graphics4;
+
+import haxe.io.Bytes;
+import kha.Blob;
+
+class ComputeShader {
+	public function new(sources: Array<Blob>, files: Array<String>) {
+
+	}
+
+	public function delete(): Void {
+
+	}
+
+	public function getConstantLocation(name: String): ConstantLocation {
+		return null;
+	}
+
+	public function getTextureUnit(name: String): TextureUnit {
+		return null;
+	}
+}

Kha/Backends/HTML5-Worker/kha/graphics4/ShaderStorageBuffer.hx

@@ -0,0 +1,24 @@
+package kha.graphics4;
+
+class ShaderStorageBuffer {
+	var data: Array<Int>;
+	var myCount: Int;
+
+	public function new(indexCount: Int, type: VertexData) {
+		myCount = indexCount;
+		data = new Array<Int>();
+		data[myCount - 1] = 0;
+	}
+
+	public function delete(): Void {}
+
+	public function lock(): Array<Int> {
+		return data;
+	}
+
+	public function unlock(): Void {}
+
+	public function count(): Int {
+		return myCount;
+	}
+}