glsl: Use SATURATE

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5100>

diff --git a/src/compiler/glsl/ir_constant_expression.cpp b/src/compiler/glsl/ir_constant_expression.cpp
index 33b097aafd47f14164dbe2eb88a47605e1390d0c..f49742108437f4bef6faf26e51e28ec63207a4d0 100644 (file)
--- a/src/compiler/glsl/ir_constant_expression.cpp
+++ b/src/compiler/glsl/ir_constant_expression.cpp
@@ -340,7 +340,7 @@ pack_unorm_1x8(float x)
      *
      *       packUnorm4x8: round(clamp(c, 0, +1) * 255.0)
      */
-   return (uint8_t) (int) _mesa_roundevenf(CLAMP(x, 0.0f, 1.0f) * 255.0f);
+   return (uint8_t) (int) _mesa_roundevenf(SATURATE(x) * 255.0f);
 }
 
 /**
@@ -359,7 +359,7 @@ pack_unorm_1x16(float x)
      *       packUnorm2x16: round(clamp(c, 0, +1) * 65535.0)
      */
    return (uint16_t) (int)
-          _mesa_roundevenf(CLAMP(x, 0.0f, 1.0f) * 65535.0f);
+          _mesa_roundevenf(SATURATE(x) * 65535.0f);
 }
 
 /**