From e8d8bdf9e328fa2c7f1b2d2bb0739b2e744f9e7e Mon Sep 17 00:00:00 2001
From: dcnieho <dcnieho@7f0cb862-5218-0410-a997-914c9d46530a>
Date: Wed, 22 Jan 2014 10:09:57 +0000
Subject: [PATCH] implement handling of GLDebugSwitch: we use glutReportErrors
 to check for errors in each iteration of the glut mainloop if requested

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1641 7f0cb862-5218-0410-a997-914c9d46530a
---
 freeglut/freeglut/src/fg_main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/freeglut/freeglut/src/fg_main.c b/freeglut/freeglut/src/fg_main.c
index d17801c..f409b33 100644
--- a/freeglut/freeglut/src/fg_main.c
+++ b/freeglut/freeglut/src/fg_main.c
@@ -465,6 +465,13 @@ void FGAPIENTRY glutMainLoopEvent( void )
     /* Perform work on the window (position, reshape, display, etc) */
     fghProcessWork( );
 
+    /* Check OpenGL error state if requested.
+     * Don't call if no more open windows (can happen if user closes window from
+     * title bar), would lead to infinite error loop in glutReportErrors
+     */
+    if (fgState.GLDebugSwitch && fgStructure.CurrentWindow)
+        glutReportErrors( );
+
     fgCloseWindows( );
 }