commit f3b9a30e815fa7612dae1a1dd420b33aa5369676
author Mike Reed <reed@google.com> Wed Apr 01 13:18:02 2020 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Wed Apr 01 17:54:43 2020 +0000
tree 389f91ce0ea67429c8c3c8ca28d3dfb529d715bc
parent 46994e01c98f909f43a99b4fa569424d40fd8465

Use infix syntax from skvm

Nothing should draw differently, just wanting to make the code
more readable.

Change-Id: I139f673cd7b28536e91cb2a3c793c86c5fb143cc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/280819
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>

src/utils/SkShadowUtils.cpp

diff --git a/src/utils/SkShadowUtils.cpp b/src/utils/SkShadowUtils.cpp
index 9d272e1..ae9249a 100644
--- a/src/utils/SkShadowUtils.cpp
+++ b/src/utils/SkShadowUtils.cpp
@@ -62,13 +62,11 @@
         // exp(-x * x * 4) - 0.018f;
         // ... now approximate with quartic
         //
-        skvm::F32 c4 = p->splat(-2.26661229133605957031f);
-        skvm::F32 c3 = p->splat( 2.89795351028442382812f);
-        skvm::F32 c2 = p->splat( 0.21345567703247070312f);
-        skvm::F32 c1 = p->splat( 0.15489584207534790039f);
-        skvm::F32 c0 = p->splat( 0.00030726194381713867f);
-        skvm::F32 x = c.a;
-        x = p->mad(x, p->mad(x, p->mad(x, p->mad(x, c4, c3), c2), c1), c0);
+        skvm::F32 x = p->splat(-2.26661229133605957031f);
+                  x = c.a * x + 2.89795351028442382812f;
+                  x = c.a * x + 0.21345567703247070312f;
+                  x = c.a * x + 0.15489584207534790039f;
+                  x = c.a * x + 0.00030726194381713867f;
         return {x, x, x, x};
     }