HC_HTXnFM_RGBA32 1013 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_RGBA8880      (HC_HTXnFM_RGBA32    | 0x00000000)
HC_HTXnFM_RGBA32 1014 drivers/gpu/drm/via/via_3d_reg.h #define HC_HTXnFM_RGBA8888      (HC_HTXnFM_RGBA32    | 0x00010000)