GL_ARB_get_texture_sub_image started (Brian Paul)
GL_ARB_shader_texture_image_samples not started
GL_ARB_texture_barrier DONE (nv50, nvc0, r300, r600, radeonsi)
- GL_KHR_context_flush_control not started
+ GL_KHR_context_flush_control DONE (all - but needs GLX/EXT extension to be useful)
GL_KHR_robust_buffer_access_behavior not started
GL_KHR_robustness 90% done (the ARB variant)
<li>GL_ARB_sample_shading on r600</li>
<li>GL_ARB_texture_view on nv50, nvc0</li>
<li>GL_ARB_clip_control on llvmpipe, softpipe, r300, r600, radeonsi</li>
+<li>GL_KHR_context_flush_control on all drivers</li>
</ul>