3 files changed, 47 insertions, 0 deletions
diff --git a/src/render/mgl.cpp b/src/render/mgl.cpp
index ff51c659d..bf8483a67 100644
--- a/src/render/mgl.cpp
+++ b/src/render/mgl.cpp
@@ -45,6 +45,9 @@ defName(glDebugMessageCallback);
 defName(glFrameTerminator);
 defName(glLabelObject);
 defName(glGetObjectLabel);
+defName(glInsertEventMarker);
+defName(glPushGroupMarker);
+defName(glPopGroupMarker);
 
 #ifdef WIN32
 defName(wglGetExtensionsString);
diff --git a/src/render/mgl.h b/src/render/mgl.h
index 8fc98f8fe..b612c5e03 100644
--- a/src/render/mgl.h
+++ b/src/render/mgl.h
@@ -113,6 +113,11 @@ typedef void (APIENTRY *glLabelObject_t) (GLenum type, GLuint object,
     GLsizei length, const GLchar *label);
 typedef void (APIENTRY *glGetObjectLabel_t) (GLenum type, GLuint object,
     GLsizei bufSize, GLsizei *length, GLchar *label);
+typedef void (APIENTRY *glInsertEventMarker_t)
+    (GLsizei length, const char *marker);
+typedef void (APIENTRY *glPushGroupMarker_t)
+    (GLsizei length, const char *marker);
+typedef void (APIENTRY *glPopGroupMarker_t) (void);
 
 // callback
 typedef void (APIENTRY *GLDEBUGPROC_t) (GLenum source, GLenum type, GLuint id,
@@ -140,6 +145,9 @@ defNameE(glDebugMessageCallback);
 defNameE(glFrameTerminator);
 defNameE(glLabelObject);
 defNameE(glGetObjectLabel);
+defNameE(glInsertEventMarker);
+defNameE(glPushGroupMarker);
+defNameE(glPopGroupMarker);
 
 #ifdef WIN32
 typedef const char* (APIENTRY * wglGetExtensionsString_t) (HDC hdc);
diff --git a/src/render/opengldebug.h b/src/render/opengldebug.h
new file mode 100644
index 000000000..82b151cc8
--- /dev/null
+++ b/src/render/opengldebug.h
@@ -0,0 +1,36 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2014  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef RENDER_OPENGLDEBUG_H
+#define RENDER_OPENGLDEBUG_H
+
+#include "render/mgl.h"
+
+#if defined(DEBUG_OPENGL) && defined(USE_OPENGL)
+#define GLDEBUG_START(text) if (mglPushGroupMarker) \
+    mglPushGroupMarker(sizeof(text), text);
+#define GLDEBUG_END() if (mglPopGroupMarker) \
+    mglPopGroupMarker();
+#else
+#define GLDEBUG_START(text)
+#define GLDEBUG_END()
+#endif
+
+#endif  // RENDER_OPENGLDEBUG_H