TU6_xTx(B8G8R8G8_422_UNORM, G8R8B8R8_422_UNORM, WZYX)
TU6_xTx(G8_B8_R8_3PLANE_420_UNORM, R8_G8_B8_3PLANE_420_UNORM, WZYX)
TU6_xTx(G8_B8R8_2PLANE_420_UNORM, R8_G8B8_2PLANE_420_UNORM, WZYX)
+ TU6_xTC(A4R4G4B4_UNORM_PACK16_EXT, 4_4_4_4_UNORM, WXYZ)
+ TU6_xTC(A4B4G4R4_UNORM_PACK16_EXT, 4_4_4_4_UNORM, WZYX)
default:
break;
}