d7c014ff03
This is a logical no-op. Everything was using the equivalent of rsqrt1() before, and is now after. BUG=skia: Committed: https://skia.googlesource.com/skia/+/9de16283fdc8cc0d31a84f503578d0ecea4e8297 CQ_EXTRA_TRYBOTS=client.skia.compile:Build-Ubuntu-GCC-Arm64-Debug-Android-Trybot Review URL: https://codereview.chromium.org/1109913002
133 lines
4.1 KiB
C++
133 lines
4.1 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 "SkNx.h"
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#include "Test.h"
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template <int N, typename T>
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static void test_Nf(skiatest::Reporter* r) {
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auto assert_nearly_eq = [&](double eps, const SkNf<N,T>& v, T a, T b, T c, T d) {
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auto close = [=](T a, T b) { return fabs(a-b) <= eps; };
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T vals[4];
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v.store(vals);
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bool ok = close(vals[0], a) && close(vals[1], b)
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&& close(v.template kth<0>(), a) && close(v.template kth<1>(), b);
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REPORTER_ASSERT(r, ok);
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if (N == 4) {
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ok = close(vals[2], c) && close(vals[3], d)
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&& close(v.template kth<2>(), c) && close(v.template kth<3>(), d);
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REPORTER_ASSERT(r, ok);
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}
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};
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auto assert_eq = [&](const SkNf<N,T>& v, T a, T b, T c, T d) {
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return assert_nearly_eq(0, v, a,b,c,d);
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};
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T vals[] = {3, 4, 5, 6};
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SkNf<N,T> a = SkNf<N,T>::Load(vals),
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b(a),
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c = a;
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SkNf<N,T> d;
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d = a;
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assert_eq(a, 3, 4, 5, 6);
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assert_eq(b, 3, 4, 5, 6);
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assert_eq(c, 3, 4, 5, 6);
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assert_eq(d, 3, 4, 5, 6);
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assert_eq(a+b, 6, 8, 10, 12);
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assert_eq(a*b, 9, 16, 25, 36);
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assert_eq(a*b-b, 6, 12, 20, 30);
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assert_eq((a*b).sqrt(), 3, 4, 5, 6);
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assert_eq(a/b, 1, 1, 1, 1);
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assert_eq(-a, -3, -4, -5, -6);
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SkNf<N,T> fours(4);
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assert_eq(fours.sqrt(), 2,2,2,2);
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assert_nearly_eq(0.001, fours.rsqrt0(), 0.5, 0.5, 0.5, 0.5);
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assert_nearly_eq(0.001, fours.rsqrt1(), 0.5, 0.5, 0.5, 0.5);
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assert_nearly_eq(0.001, fours.rsqrt2(), 0.5, 0.5, 0.5, 0.5);
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assert_eq( fours. invert(), 0.25, 0.25, 0.25, 0.25);
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assert_nearly_eq(0.001, fours.approxInvert(), 0.25, 0.25, 0.25, 0.25);
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assert_eq(SkNf<N,T>::Min(a, fours), 3, 4, 4, 4);
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assert_eq(SkNf<N,T>::Max(a, fours), 4, 4, 5, 6);
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// Test some comparisons. This is not exhaustive.
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REPORTER_ASSERT(r, (a == b).allTrue());
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REPORTER_ASSERT(r, (a+b == a*b-b).anyTrue());
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REPORTER_ASSERT(r, !(a+b == a*b-b).allTrue());
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REPORTER_ASSERT(r, !(a+b == a*b).anyTrue());
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REPORTER_ASSERT(r, !(a != b).anyTrue());
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REPORTER_ASSERT(r, (a < fours).anyTrue());
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REPORTER_ASSERT(r, (a <= fours).anyTrue());
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REPORTER_ASSERT(r, !(a > fours).allTrue());
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REPORTER_ASSERT(r, !(a >= fours).allTrue());
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}
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DEF_TEST(SkNf, r) {
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test_Nf<2, float>(r);
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test_Nf<2, double>(r);
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test_Nf<4, float>(r);
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test_Nf<4, double>(r);
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}
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template <int N, typename T>
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void test_Ni(skiatest::Reporter* r) {
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auto assert_eq = [&](const SkNi<N,T>& v, T a, T b, T c, T d, T e, T f, T g, T h) {
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T vals[8];
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v.store(vals);
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switch (N) {
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case 8: REPORTER_ASSERT(r, vals[4] == e && vals[5] == f && vals[6] == g && vals[7] == h);
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case 4: REPORTER_ASSERT(r, vals[2] == c && vals[3] == d);
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case 2: REPORTER_ASSERT(r, vals[0] == a && vals[1] == b);
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}
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switch (N) {
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case 8: REPORTER_ASSERT(r, v.template kth<4>() == e && v.template kth<5>() == f &&
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v.template kth<6>() == g && v.template kth<7>() == h);
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case 4: REPORTER_ASSERT(r, v.template kth<2>() == c && v.template kth<3>() == d);
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case 2: REPORTER_ASSERT(r, v.template kth<0>() == a && v.template kth<1>() == b);
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}
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};
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T vals[] = { 1,2,3,4,5,6,7,8 };
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SkNi<N,T> a = SkNi<N,T>::Load(vals),
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b(a),
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c = a;
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SkNi<N,T> d;
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d = a;
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assert_eq(a, 1,2,3,4,5,6,7,8);
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assert_eq(b, 1,2,3,4,5,6,7,8);
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assert_eq(c, 1,2,3,4,5,6,7,8);
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assert_eq(d, 1,2,3,4,5,6,7,8);
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assert_eq(a+a, 2,4,6,8,10,12,14,16);
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assert_eq(a*a, 1,4,9,16,25,36,49,64);
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assert_eq(a*a-a, 0,2,6,12,20,30,42,56);
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assert_eq(a >> 2, 0,0,0,1,1,1,1,2);
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assert_eq(a << 1, 2,4,6,8,10,12,14,16);
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REPORTER_ASSERT(r, a.template kth<1>() == 2);
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}
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DEF_TEST(SkNi, r) {
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test_Ni<2, uint16_t>(r);
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test_Ni<4, uint16_t>(r);
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test_Ni<8, uint16_t>(r);
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test_Ni<2, int>(r);
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test_Ni<4, int>(r);
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test_Ni<8, int>(r);
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}
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