HC_HTXnFM_ARGB16  998 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_RGB555        (HC_HTXnFM_ARGB16    | 0x00000000)
HC_HTXnFM_ARGB16  999 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_RGB565        (HC_HTXnFM_ARGB16    | 0x00010000)
HC_HTXnFM_ARGB16 1000 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_ARGB1555      (HC_HTXnFM_ARGB16    | 0x00020000)
HC_HTXnFM_ARGB16 1001 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_ARGB4444      (HC_HTXnFM_ARGB16    | 0x00030000)