SkNx refresh

tests/SkNxTest.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Sk4px.h"
 #include "SkNx.h"
 #include "SkRandom.h"
@@ skipping 35 matching lines @@
     assert_eq(a+b, 6, 8, 10, 12);
     assert_eq(a*b, 9, 16, 25, 36);
     assert_eq(a*b-b, 6, 12, 20, 30);
     assert_eq((a*b).sqrt(), 3, 4, 5, 6);
     assert_eq(a/b, 1, 1, 1, 1);
     assert_eq(SkNx<N,float>(0)-a, -3, -4, -5, -6);
 
     SkNx<N,float> fours(4);
 
     assert_eq(fours.sqrt(), 2,2,2,2);
-    assert_nearly_eq(0.001f, fours.rsqrt0(), 0.5, 0.5, 0.5, 0.5);
-    assert_nearly_eq(0.001f, fours.rsqrt1(), 0.5, 0.5, 0.5, 0.5);
-    assert_nearly_eq(0.001f, fours.rsqrt2(), 0.5, 0.5, 0.5, 0.5);
+    assert_nearly_eq(0.001f, fours.rsqrt(), 0.5, 0.5, 0.5, 0.5);
 
-    assert_eq(               fours.      invert(), 0.25, 0.25, 0.25, 0.25);
-    assert_nearly_eq(0.001f, fours.approxInvert(), 0.25, 0.25, 0.25, 0.25);
+    assert_nearly_eq(0.001f, fours.invert(), 0.25, 0.25, 0.25, 0.25);
 
     assert_eq(SkNx<N,float>::Min(a, fours), 3, 4, 4, 4);
     assert_eq(SkNx<N,float>::Max(a, fours), 4, 4, 5, 6);
 
     // Test some comparisons.  This is not exhaustive.
     REPORTER_ASSERT(r, (a == b).allTrue());
     REPORTER_ASSERT(r, (a+b == a*b-b).anyTrue());
     REPORTER_ASSERT(r, !(a+b == a*b-b).allTrue());
     REPORTER_ASSERT(r, !(a+b == a*b).anyTrue());
     REPORTER_ASSERT(r, !(a != b).anyTrue());
@@ skipping 212 matching lines @@
             (uint16_t)rand.nextU16(), (uint16_t)rand.nextU16(),
         };
         auto u4_0 = Sk4h::Load(s16);
         auto f4 = SkNx_cast<float>(u4_0);
         auto u4_1 = SkNx_cast<uint16_t>(f4);
         uint16_t d16[4];
         u4_1.store(d16);
         REPORTER_ASSERT(r, !memcmp(s16, d16, sizeof(s16)));
     }
 }