1GL_ARB_timer_query
2http://www.opengl.org/registry/specs/ARB/timer_query.txt
3GL_ARB_timer_query
4	GL_TIME_ELAPSED 0x88BF
5	GL_TIMESTAMP 0x8E28
6	void glGetQueryObjecti64v (GLuint id, GLenum pname, GLint64* params)
7	void glGetQueryObjectui64v (GLuint id, GLenum pname, GLuint64* params)
8	void glQueryCounter (GLuint id, GLenum target)
9