Wes xx mediapipe integration

Packages/com.github.homuler.mediapipe/Runtime/Scripts/PInvoke/NativeMethods/Gpu/Gl_Unsafe.cs

@@ -0,0 +1,20 @@
+// Copyright (c) 2021 homuler
+//
+// Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace Mediapipe
+{
+  internal static partial class UnsafeNativeMethods
+  {
+    [DllImport(MediaPipeLibrary)]
+    public static extern void glFlush();
+
+    [DllImport(MediaPipeLibrary)]
+    public static extern void glReadPixels(int x, int y, int width, int height, uint glFormat, uint glType, IntPtr pixels);
+  }
+}