From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 28 Mar 2013 18:44:21 +0000 (+0200)
Subject: Disable NV_primitive_restart on Radeon cards because it's buggy
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=269a74980e2db1ee5004b643f23c2607a77ead58

Disable NV_primitive_restart on Radeon cards because it's buggy
---

diff --git a/source/extension.cpp b/source/extension.cpp
index 6ca4f08c..d4acedaf 100644
--- a/source/extension.cpp
+++ b/source/extension.cpp
@@ -53,6 +53,13 @@ bool is_supported(const string &ext)
 			extensions.insert(exts.begin(), exts.end());
 		}
 
+		string renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
+		if(renderer.find("Radeon")!=string::npos)
+			/* Radeon doesn't process NV_primitive_restart correctly and treats
+			the restart index as a normal element if the indices are stored in a
+			buffer. */
+			extensions.erase("GL_NV_primitive_restart");
+
 		init_done = true;
 	}