1GL_ARB_query_buffer_object 2http://www.opengl.org/registry/specs/ARB/query_buffer_object.txt 3GL_ARB_query_buffer_object 4 5 GL_QUERY_BUFFER_BARRIER_BIT 0x00008000 6 GL_QUERY_BUFFER 0x9192 7 GL_QUERY_BUFFER_BINDING 0x9193 8 GL_QUERY_RESULT_NO_WAIT 0x9194 9