From 50f72c069232d6e3dd5d4e73fc5353af78c40543 Mon Sep 17 00:00:00 2001
From: kallaballa <amir@viel-zu.org>
Date: Mon, 19 Dec 2022 08:16:02 +0100
Subject: [PATCH] set the viewport before flushing

---
 src/common/detail/clglcontext.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/detail/clglcontext.cpp b/src/common/detail/clglcontext.cpp
index 5388140a2..47158ce72 100644
--- a/src/common/detail/clglcontext.cpp
+++ b/src/common/detail/clglcontext.cpp
@@ -83,9 +83,9 @@ void CLGLContext::end() {
     GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0));
     //glFlush seems enough but i wanna make sure that there won't be race conditions.
     //At least on TigerLake/Iris it doesn't make a difference in performance.
+    GL_CHECK(glViewport(viewport_[0], viewport_[1], viewport_[2], viewport_[3]));
     GL_CHECK(glFlush());
     GL_CHECK(glFinish());
-    GL_CHECK(glViewport(viewport_[0], viewport_[1], viewport_[2], viewport_[3]));
 }
 
 void CLGLContext::acquireFromGL(cv::UMat &m) {