69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Test.h"
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#include "Sk2x.h"
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template <typename T>
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static bool nearly_eq(double eps, const Sk2x<T>& v, double x, double y) {
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T vals[2];
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v.store(vals);
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return fabs(vals[0] - (T)x) <= eps && fabs(vals[1] - (T)y) <= eps;
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}
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template <typename T>
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static bool eq(const Sk2x<T>& v, double x, double y) { return nearly_eq(0, v, x, y); }
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template <typename T>
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static void test(skiatest::Reporter* r) {
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// Constructors, assignment, etc.
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Sk2x<T> a(4),
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b = a,
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c(a);
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REPORTER_ASSERT(r, eq(a, 4, 4));
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REPORTER_ASSERT(r, eq(b, 4, 4));
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REPORTER_ASSERT(r, eq(c, 4, 4));
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Sk2x<T> d(2, 5);
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Sk2x<T> e;
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e = d;
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T vals[] = { 2, 5 };
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Sk2x<T> f = Sk2x<T>::Load(vals);
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REPORTER_ASSERT(r, eq(d, 2, 5));
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REPORTER_ASSERT(r, eq(e, 2, 5));
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REPORTER_ASSERT(r, eq(f, 2, 5));
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a.store(vals);
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REPORTER_ASSERT(r, vals[0] == 4 && vals[1] == 4);
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// Math
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REPORTER_ASSERT(r, eq(a + d, 6, 9));
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REPORTER_ASSERT(r, eq(a - d, 2, -1));
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REPORTER_ASSERT(r, eq(a * d, 8, 20));
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REPORTER_ASSERT(r, eq(a / d, 2, 0.8));
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REPORTER_ASSERT(r, nearly_eq(0.001, a.rsqrt(), 0.5, 0.5));
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REPORTER_ASSERT(r, eq(a.sqrt(), 2, 2));
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REPORTER_ASSERT(r, nearly_eq(0.001, d.approxInvert(), 0.5, 0.2));
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REPORTER_ASSERT(r, eq(d.invert(), 0.5, 0.2));
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REPORTER_ASSERT(r, eq(Sk2x<T>::Min(a, d), 2, 4));
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REPORTER_ASSERT(r, eq(Sk2x<T>::Max(a, d), 4, 5));
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REPORTER_ASSERT(r, eq(-d, -2, -5));
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// A bit of both.
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a += d;
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a *= d;
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a -= d;
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REPORTER_ASSERT(r, eq(a, 10, 40));
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}
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DEF_TEST(Sk2f, r) { test< float>(r); }
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DEF_TEST(Sk2d, r) { test<double>(r); }
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