Implement glDrawArraysInstanced by constructing a 'counting' index buffer since D3D9 only supports instancing on indexed draw calls. TRAC #19489 Signed-off-by: Daniel Koch Author: Nicolas Capens git-svn-id: https://angleproject.googlecode.com/svn/trunk@972 736b8ea6-26fd-11df-bfd4-992fa37f6226