isl: Use util_sign_extend
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17214>
diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c
index 2a7bacc..bfaddf1 100644
--- a/src/intel/isl/isl_format.c
+++ b/src/intel/isl/isl_format.c
@@ -1274,18 +1274,6 @@
assert(fmtl->channels.p.bits == 0);
}
-/** Extend an N-bit signed integer to 32 bits */
-static inline int32_t
-sign_extend(int32_t x, unsigned bits)
-{
- if (bits < 32) {
- unsigned shift = 32 - bits;
- return (x << shift) >> shift;
- } else {
- return x;
- }
-}
-
static inline void
unpack_channel(union isl_color_value *value,
unsigned start, unsigned count,
@@ -1323,7 +1311,7 @@
}
break;
case ISL_SNORM:
- unpacked.f32 = _mesa_snorm_to_float(sign_extend(packed, layout->bits),
+ unpacked.f32 = _mesa_snorm_to_float(util_sign_extend(packed, layout->bits),
layout->bits);
break;
case ISL_SFLOAT:
@@ -1338,7 +1326,7 @@
unpacked.u32 = packed;
break;
case ISL_SINT:
- unpacked.u32 = sign_extend(packed, layout->bits);
+ unpacked.u32 = util_sign_extend(packed, layout->bits);
break;
default:
