From 9c4b7d5eb203a84ade2c00398a52b3724631927c Mon Sep 17 00:00:00 2001
From: Miikka Heikkinen <miikka.heikkinen@digia.com>
Date: Wed, 19 Sep 2012 16:06:57 +0300
Subject: [PATCH] Fix OpenGL context creation in Windows platform plugin

Attribute index was incremented incorrectly.

Task-number: QTBUG-27272
Change-Id: Ia7e9c76acc6c9d8208b8ba43131861a3beff6b2c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
---
 src/plugins/platforms/windows/qwindowsglcontext.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/platforms/windows/qwindowsglcontext.cpp b/src/plugins/platforms/windows/qwindowsglcontext.cpp
index 825f65c198..45e344416d 100644
--- a/src/plugins/platforms/windows/qwindowsglcontext.cpp
+++ b/src/plugins/platforms/windows/qwindowsglcontext.cpp
@@ -575,7 +575,7 @@ static HGLRC createContext(const QOpenGLStaticContext &staticContext,
         if (format.testOption(QSurfaceFormat::DeprecatedFunctions))
              attributes[attribIndex] |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
         if (format.testOption(QSurfaceFormat::DebugContext))
-            attributes[attribIndex++] |= WGL_CONTEXT_DEBUG_BIT_ARB;
+            attributes[attribIndex] |= WGL_CONTEXT_DEBUG_BIT_ARB;
         attribIndex++;
     }
     if (requestedVersion >= 0x0302) {