combine.Negate = outer.Negate;
} else {
combine.Abs = inner.Abs;
- combine.Negate = 0;
- for(unsigned int chan = 0; chan < 4; ++chan) {
- unsigned int swz = GET_SWZ(outer.Swizzle, chan);
- if (swz < 4)
- combine.Negate |= GET_BIT(inner.Negate, swz) << chan;
- }
+ combine.Negate = swizzle_mask(outer.Swizzle, inner.Negate);
combine.Negate ^= outer.Negate;
}
combine.Swizzle = combine_swizzles(inner.Swizzle, outer.Swizzle);
}
return RC_SWIZZLE_UNUSED;
}
+
+/* Reorder mask bits according to swizzle. */
+static inline unsigned swizzle_mask(unsigned swizzle, unsigned mask)
+{
+ unsigned ret = 0;
+ for (unsigned chan = 0; chan < 4; ++chan) {
+ unsigned swz = GET_SWZ(swizzle, chan);
+ if (swz < 4)
+ ret |= GET_BIT(mask, swz) << chan;
+ }
+ return ret;
+}
+
+
struct rc_src_register lmul_swizzle(unsigned int swizzle, struct rc_src_register srcreg);
static inline void reset_srcreg(struct rc_src_register* reg)