#define BRW_SURFACEFORMAT_R16G16B16_SNORM 0x19D
#define BRW_SURFACEFORMAT_R16G16B16_SSCALED 0x19E
#define BRW_SURFACEFORMAT_R16G16B16_USCALED 0x19F
+#define BRW_SURFACEFORMAT_INVALID 0xFFF
#define BRW_SURFACERETURNFORMAT_FLOAT32 0
#define BRW_SURFACERETURNFORMAT_S1 1