From 108ab335537d20bc74aa9115d46cf91243223c4e Mon Sep 17 00:00:00 2001
From: Rhys Weatherley <rhys.weatherley@nokia.com>
Date: Fri, 4 Dec 2009 17:03:41 +1000
Subject: Better check for EGL extension strings

The previous code might have failed if the desired extension name
was a prefix of another name: "EGL_foo" member of "EGL_foo_bar".
This change introduces a more precise check.

Task-number: QTBUG-6454
Reviewed-by: Sarah Smith
---
 src/gui/egl/qegl.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/gui/egl/qegl.cpp b/src/gui/egl/qegl.cpp
index cf28dc4..6ee4bfc 100644
--- a/src/gui/egl/qegl.cpp
+++ b/src/gui/egl/qegl.cpp
@@ -429,7 +429,10 @@ QString QEglContext::extensions()
 
 bool QEglContext::hasExtension(const char* extensionName)
 {
-    return extensions().contains(QLatin1String(extensionName));
+    QList<QByteArray> extensions =
+        QByteArray(reinterpret_cast<const char *>
+            (eglQueryString(QEglContext::defaultDisplay(0), EGL_EXTENSIONS))).split(' ');
+    return extensions.contains(extensionName);
 }
 
 QEglContext *QEglContext::currentContext(QEgl::API api)
-- 
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