Disable NV_primitive_restart on Radeon cards because it's buggy

diff --git a/source/extension.cpp b/source/extension.cpp
index 6ca4f08ce61728da8a1a9c994880be0d85810a97..d4acedaf1213ac55817b6d30715db1b7364c95d1 100644 (file)
--- 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;
        }