mirror of
https://github.com/yuzu-emu/FasTC
synced 2024-11-22 21:14:00 +00:00
419 lines
9.9 KiB
C++
419 lines
9.9 KiB
C++
// Copyright 2016 The University of North Carolina at Chapel Hill
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Please send all BUG REPORTS to <pavel@cs.unc.edu>.
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// <http://gamma.cs.unc.edu/FasTC/>
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#include "gtest/gtest.h"
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#include "FasTC/VectorBase.h"
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static const float kEpsilon = 1e-6f;
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TEST(VectorBase, Constructors) {
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FasTC::VectorBase<float, 3> v3f;
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v3f[0] = 1.1f; v3f[1] = 1.2f; v3f[2] = 1.3f;
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FasTC::VectorBase<double, 1> v1d;
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v1d[0] = 1.1;
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FasTC::VectorBase<int, 7> v7i;
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for(int i = 0; i < 7; i++)
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v7i[i] = -i;
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FasTC::VectorBase<unsigned, 16> v16u;
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for(int i = 0; i < 16; i++)
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v16u[i] = i;
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#define TEST_VECTOR_COPY_CONS(v, t, n) \
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do { \
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FasTC::VectorBase<t, n> d##v (v); \
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for(int i = 0; i < n; i++) { \
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EXPECT_EQ(d##v [i], v[i]); \
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} \
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} while(0) \
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TEST_VECTOR_COPY_CONS(v3f, float, 3);
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TEST_VECTOR_COPY_CONS(v1d, double, 1);
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TEST_VECTOR_COPY_CONS(v7i, int, 7);
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TEST_VECTOR_COPY_CONS(v16u, unsigned, 16);
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#undef TEST_VECTOR_COPY_CONS
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}
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TEST(VectorBase, Accessors) {
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FasTC::VectorBase<float, 3> v3f;
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v3f[0] = 1.0f;
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v3f[1] = -2.3f;
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v3f[2] = 1000;
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for(int i = 0; i < 3; i++) {
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EXPECT_EQ(v3f[i], v3f(i));
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}
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v3f(0) = -1.0f;
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v3f(1) = 2.3f;
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v3f(2) = -1000;
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for(int i = 0; i < 3; i++) {
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EXPECT_EQ(v3f(i), v3f[i]);
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}
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}
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TEST(VectorBase, PointerConversion) {
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FasTC::VectorBase<float, 3> v3f;
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v3f[0] = 1.0f;
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v3f[1] = -2.3f;
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v3f[2] = 1000;
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float cmp[3] = { 1.0f, -2.3f, 1000 };
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const float *v3fp = v3f;
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int result = memcmp(cmp, v3fp, 3 * sizeof(float));
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EXPECT_EQ(result, 0);
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cmp[0] = -1.0f;
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cmp[1] = 2.3f;
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cmp[2] = 1000.0f;
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v3f = cmp;
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for(int i = 0; i < 3; i++) {
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EXPECT_EQ(v3f[i], cmp[i]);
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}
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}
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TEST(VectorBase, CastVector) {
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FasTC::VectorBase<float, 3> v3f;
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v3f[0] = 1000000.0f;
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v3f[1] = -2.0f;
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v3f[2] = -1.1f;
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FasTC::VectorBase<double, 3> v3d = v3f;
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FasTC::VectorBase<int, 3> v3i = v3f;
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for(int i = 0; i < 3; i++) {
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EXPECT_EQ(v3d(i), static_cast<double>(v3f(i)));
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EXPECT_EQ(v3i(i), static_cast<int>(v3f(i)));
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}
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}
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TEST(VectorBase, DotProduct) {
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int iv[5] = { -2, -1, 0, 1, 2 };
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FasTC::VectorBase<int, 5> v5i(iv);
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unsigned uv[5] = { 1, 2, 3, 4, 5 };
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FasTC::VectorBase<unsigned, 5> v5u(uv);
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EXPECT_EQ(v5i.Dot(v5u), static_cast<int>(10));
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EXPECT_EQ(v5u.Dot(v5i), static_cast<unsigned>(10));
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EXPECT_EQ(v5i * v5u, static_cast<int>(10));
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EXPECT_EQ(v5u * v5i, static_cast<unsigned>(10));
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}
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TEST(VectorBase, Length) {
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int iv[5] = { 1, 2, 3, 4, 5 };
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FasTC::VectorBase<int, 5> v5i (iv);
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EXPECT_EQ(v5i.LengthSq(), 55);
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EXPECT_EQ(v5i.Length(), 7);
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float fv[6] = {1, 2, 3, 4, 5, 6};
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FasTC::VectorBase<float, 6> v6f (fv);
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EXPECT_EQ(v6f.LengthSq(), 91);
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EXPECT_NEAR(v6f.Length(), sqrt(91.0f), kEpsilon);
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}
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TEST(VectorBase, Normalization) {
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float fv[2] = {1, 0};
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FasTC::VectorBase<float, 2> v2f (fv);
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v2f.Normalize();
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EXPECT_NEAR(v2f[0], 1, kEpsilon);
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EXPECT_NEAR(v2f[1], 0, kEpsilon);
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// Normalized vector should be sqrt(2) for each axis, although
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// this can't be represented as integers...
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unsigned uv[2] = {2, 2};
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FasTC::VectorBase<unsigned, 2> v2u (uv);
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v2u.Normalize();
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EXPECT_EQ(v2u[0], static_cast<unsigned>(1));
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EXPECT_EQ(v2u[1], static_cast<unsigned>(1));
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const double sqrt2 = sqrt(2.0f)/2.0f;
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for(int i = 2; i < 10; i++) {
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v2f[0] = static_cast<float>(i);
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v2f[1] = static_cast<float>(i);
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v2f.Normalize();
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EXPECT_NEAR(v2f[0], sqrt2, kEpsilon);
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EXPECT_NEAR(v2f[1], sqrt2, kEpsilon);
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}
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}
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TEST(VectorBase, Scaling) {
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float fv[2] = {1.0f, 3.0f};
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FasTC::VectorBase<float, 2> v2f (fv);
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FasTC::VectorBase<float, 2> v2fd = v2f * 3.0f;
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EXPECT_NEAR(v2fd[0], 3.0f, kEpsilon);
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EXPECT_NEAR(v2fd[1], 9.0f, kEpsilon);
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v2fd = -1.0 * v2f;
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EXPECT_NEAR(v2fd[0], -1.0f, kEpsilon);
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EXPECT_NEAR(v2fd[1], -3.0f, kEpsilon);
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v2fd = v2f / 3;
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EXPECT_NEAR(v2fd[0], 1.0f / 3.0f, kEpsilon);
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EXPECT_NEAR(v2fd[1], 1.0f, kEpsilon);
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unsigned uv[2] = {1, 3};
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FasTC::VectorBase<unsigned, 2> v2u (uv);
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FasTC::VectorBase<unsigned, 2> v2ud = v2u * 0.5;
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EXPECT_EQ(v2ud[0], static_cast<unsigned>(0));
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EXPECT_EQ(v2ud[1], static_cast<unsigned>(1));
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v2ud = v2u / 0.5f;
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EXPECT_EQ(v2ud[0], static_cast<unsigned>(2));
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EXPECT_EQ(v2ud[1], static_cast<unsigned>(6));
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}
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TEST(VectorBase, Addition) {
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float fv[2] = {1.1f, 3.2f};
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FasTC::VectorBase<float, 2> v2f (fv);
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int uv[2] = {5, 2};
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FasTC::VectorBase<int, 2> v2u (uv);
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FasTC::VectorBase<int, 2> au = v2u + v2f;
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EXPECT_EQ(au[0], 6);
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EXPECT_EQ(au[1], 5);
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au = v2u + fv + uv;
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EXPECT_EQ(au[0], 11);
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EXPECT_EQ(au[1], 7);
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FasTC::VectorBase<float, 2> af = v2f + v2u;
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EXPECT_NEAR(af[0], 6.1f, kEpsilon);
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EXPECT_NEAR(af[1], 5.2f, kEpsilon);
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au = v2u - v2f;
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EXPECT_EQ(au[0], 4);
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EXPECT_EQ(au[1], -1);
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af = v2f - v2u;
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EXPECT_NEAR(af[0], -3.9f, kEpsilon);
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EXPECT_NEAR(af[1], 1.2f, kEpsilon);
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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// Vec2
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "FasTC/Vector2.h"
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TEST(Vector2, BaseFunctionality) {
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FasTC::Vec2f v2f;
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FasTC::Vec2d v2d;
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v2d.X() = 3.0;
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v2d.Y() = -10.0;
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v2f = v2d;
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EXPECT_EQ(v2f[0], v2d[0]);
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EXPECT_EQ(v2f[1], v2d[1]);
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}
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TEST(Vector2, Accessors) {
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float fv[2] = { 1.0f, 2.0f };
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FasTC::Vec2f v2f (fv);
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EXPECT_EQ(v2f.X(), 1.0f);
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EXPECT_EQ(v2f.Y(), 2.0f);
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v2f.X() = 4.0f;
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v2f.Y() = 5.0f;
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EXPECT_EQ(v2f.X(), 4.0f);
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EXPECT_EQ(v2f.Y(), 5.0f);
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}
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TEST(Vector2, Addition) {
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float fv[2] = { 1.0f, 2.0f };
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FasTC::Vec2f v2f (fv);
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double dv[2] = { 4.3, -10.2 };
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FasTC::Vec2d v2d (dv);
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EXPECT_NEAR((v2f + v2d).X(), 5.3, kEpsilon);
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EXPECT_NEAR((v2f + v2d).Y(), -8.2, kEpsilon);
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}
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TEST(Vector2, Swizzle) {
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float fv[2] = {1.0f, 2.0f};
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FasTC::Vec2f v;
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v = fv;
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EXPECT_EQ(v.XX().X(), 1.0f);
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EXPECT_EQ(v.XX().Y(), 1.0f);
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EXPECT_EQ(v.YY().X(), 2.0f);
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EXPECT_EQ(v.YY().Y(), 2.0f);
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EXPECT_EQ(v.YX().X(), 2.0f);
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EXPECT_EQ(v.YX().Y(), 1.0f);
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EXPECT_EQ(v.XY().X(), 1.0f);
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EXPECT_EQ(v.XY().Y(), 2.0f);
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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// Vec3
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "FasTC/Vector3.h"
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TEST(Vector3, BaseFunctionality) {
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FasTC::Vec3f vf;
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FasTC::Vec3d vd;
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vd.X() = 3.0;
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vd.Y() = -10.0;
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vd.Z() = 0.0;
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vf = vd;
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for(int i = 0; i < 3; i++) {
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EXPECT_EQ(vf[i], vd[i]);
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}
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}
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TEST(Vector3, Accessors) {
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float fv[3] = { 1.0f, 2.0f, 3.0f };
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FasTC::Vec3f v3f (fv);
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EXPECT_EQ(v3f.X(), 1.0f);
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EXPECT_EQ(v3f.Y(), 2.0f);
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EXPECT_EQ(v3f.Z(), 3.0f);
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v3f.X() = 4.0f;
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v3f.Y() = 5.0f;
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v3f.Z() = 6.0f;
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EXPECT_EQ(v3f.X(), 4.0f);
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EXPECT_EQ(v3f.Y(), 5.0f);
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EXPECT_EQ(v3f.Z(), 6.0f);
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}
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TEST(Vector3, Addition) {
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float fv[3] = { 1.0f, 2.0f, 3.0f };
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FasTC::Vec3f v3f (fv);
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double dv[3] = { 4.3, -10.2, 0.0f };
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FasTC::Vec3d v3d (dv);
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EXPECT_NEAR((v3f + v3d).X(), 5.3, kEpsilon);
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EXPECT_NEAR((v3f + v3d).Y(), -8.2, kEpsilon);
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EXPECT_NEAR((v3f + v3d).Z(), 3.0, kEpsilon);
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}
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TEST(Vector3, Swizzle) {
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float fv[3] = {1.0f, 2.0f, 3.0f};
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FasTC::Vec3f v;
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v = fv;
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EXPECT_EQ(v.XXX().Y(), 1.0f);
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EXPECT_EQ(v.YZX().X(), 2.0f);
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EXPECT_EQ(v.ZZY().Z(), 2.0f);
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EXPECT_EQ(v.ZYZ().X(), 3.0f);
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}
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TEST(Vector3, CrossProduct) {
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float fv[3] = {1.0f, 2.0f, 3.0f};
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FasTC::Vec3f v1 (fv);
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FasTC::Vec3f v2 = v1;
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std::swap(v1.X(), v1.Z());
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// Right handed coordinate system...
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FasTC::Vec3f r = v1.Cross(v2);
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EXPECT_NEAR(r.X(), 4.0f, kEpsilon);
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EXPECT_NEAR(r.Y(), -8.0f, kEpsilon);
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EXPECT_NEAR(r.Z(), 4.0f, kEpsilon);
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v1.X() = v1.Y() = v2.X() = v2.Z() = 0.0f;
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v1.Z() = v2.Y() = 1.0f;
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r = v1.Cross(v2);
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EXPECT_EQ(r.X(), -1.0f);
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EXPECT_EQ(r.Y(), 0.0f);
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EXPECT_EQ(r.Z(), 0.0f);
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r = v2.Cross(v1);
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EXPECT_EQ(r.X(), 1.0f);
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EXPECT_EQ(r.Y(), 0.0f);
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EXPECT_EQ(r.Z(), 0.0f);
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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// Vec4
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//
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////////////////////////////////////////////////////////////////////////////////
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#include "FasTC/Vector4.h"
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TEST(Vector4, BaseFunctionality) {
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FasTC::Vec4f vf;
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FasTC::Vec4d vd;
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vd.X() = 3.0;
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vd.Y() = -10.0;
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vd.Z() = 0.0;
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vd.W() = 100000000.0;
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vf = vd;
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for(int i = 0; i < 4; i++) {
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EXPECT_EQ(vf[i], vd[i]);
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}
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}
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TEST(Vector4, Accessors) {
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float fv[4] = { 1.0f, 2.0f, 3.0f, 4.0f };
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FasTC::Vec4f v4f (fv);
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EXPECT_EQ(v4f.X(), 1.0f);
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EXPECT_EQ(v4f.Y(), 2.0f);
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EXPECT_EQ(v4f.Z(), 3.0f);
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EXPECT_EQ(v4f.W(), 4.0f);
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v4f.X() = 5.0f;
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v4f.Y() = 6.0f;
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v4f.Z() = 7.0f;
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v4f.W() = 8.0f;
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EXPECT_EQ(v4f.X(), 5.0f);
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EXPECT_EQ(v4f.Y(), 6.0f);
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EXPECT_EQ(v4f.Z(), 7.0f);
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EXPECT_EQ(v4f.W(), 8.0f);
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}
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TEST(Vector4, Addition) {
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float fv[4] = { 1.0f, 2.0f, 3.0f, 4.0f };
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FasTC::Vec4f v4f (fv);
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double dv[4] = { 4.3, -10.2, 0.0f, -22.0f };
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FasTC::Vec4d v3d (dv);
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EXPECT_NEAR((v4f + v3d).X(), 5.3, kEpsilon);
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EXPECT_NEAR((v4f + v3d).Y(), -8.2, kEpsilon);
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EXPECT_NEAR((v4f + v3d).Z(), 3.0, kEpsilon);
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EXPECT_NEAR((v4f + v3d).W(), -18.0, kEpsilon);
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}
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TEST(Vector4, Swizzle) {
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float fv[4] = {1.0f, 2.0f, 3.0f, 4.0f};
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FasTC::Vec4f v;
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v = fv;
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EXPECT_EQ(v.XXXX().Y(), 1.0f);
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EXPECT_EQ(v.YZXW().X(), 2.0f);
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EXPECT_EQ(v.ZWY().Z(), 2.0f);
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EXPECT_EQ(v.ZZ().X(), 3.0f);
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EXPECT_EQ(v.WWXY().W(), 2.0f);
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}
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