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-rw-r--r--src/mesa/program/prog_instruction.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/program/prog_instruction.h b/src/mesa/program/prog_instruction.h
index ab3acbc02dd..96da198f86d 100644
--- a/src/mesa/program/prog_instruction.h
+++ b/src/mesa/program/prog_instruction.h
@@ -59,6 +59,8 @@
#define SWIZZLE_NOOP MAKE_SWIZZLE4(0,1,2,3)
#define GET_SWZ(swz, idx) (((swz) >> ((idx)*3)) & 0x7)
#define GET_BIT(msk, idx) (((msk) >> (idx)) & 0x1)
+/** Determine if swz contains SWIZZLE_ZERO/ONE/NIL for any components. */
+#define HAS_EXTENDED_SWIZZLE(swz) (swz & 0x924)
#define SWIZZLE_XYZW MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_W)
#define SWIZZLE_XXXX MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, SWIZZLE_X, SWIZZLE_X)