Pixel Map Color Table
glPixelMap()


glPixelTransfer ( GL_MAP_COLOR, GL_MAP_STENCIL )

GL_PIXEL_MAP_I_TO_{ I, R, G, B, A }
GL_PIXEL_MAP_S_TO_S
GL_PIXEL_MAP_R_TO_R
GL_PIXEL_MAP_G_TO_G
GL_PIXEL_MAP_B_TO_B
GL_PIXEL_MAP_A_TO_A

*use glColorTableSGI() for RGB[A]