diff --git a/src/video_core/renderer_opengl/post_processing_opengl.cpp b/src/video_core/renderer_opengl/post_processing_opengl.cpp
index b4841368d..80d8be7cb 100644
--- a/src/video_core/renderer_opengl/post_processing_opengl.cpp
+++ b/src/video_core/renderer_opengl/post_processing_opengl.cpp
@@ -90,6 +90,16 @@ float2 GetIInvResolution()
     return i_resolution.zw;
 }
 
+float2 GetWindowResolution()
+{
+  return o_resolution.xy;
+}
+
+float2 GetInvWindowResolution()
+{
+  return o_resolution.zw;
+}
+
 float2 GetOResolution()
 {
     return o_resolution.xy;