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| /*
| * Copyright (C) 2013 The Android Open Source Project
| *
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not
| * use this file except in compliance with the License. You may obtain a copy of
| * the License at
| *
| * http://www.apache.org/licenses/LICENSE-2.0
| *
| * Unless required by applicable law or agreed to in writing, software
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
| * License for the specific language governing permissions and limitations under
| * the License.
| */
|
| #include <gtest/gtest.h>
| #include <math.h>
|
| #include "Matrix.h"
|
| class MatrixTest: public testing::Test {
| public:
|
| };
|
| void checkValues(const float* arr1, const float* arr2, const int size) {
| for (int i = 0; i < size; i++) {
| ASSERT_FLOAT_EQ(arr1[i], arr2[i]);
| }
| }
|
| TEST(MatrixTest, matrixEqualityTest) {
| // Create two identity matrixes.
| Matrix m1;
| Matrix m2;
| // Change some random values.
| m1.mData[4] = 9;
| m2.mData[4] = 9;
| // Check they are the same.
| ASSERT_TRUE(m1.equals(m2));
| Matrix* clone = new Matrix(m1);
| ASSERT_TRUE(clone != NULL);
| ASSERT_TRUE(m1.equals(*clone));
| delete clone;
| }
|
| TEST(MatrixTest, matrixIdentityTest) {
| // Create an identity matrix.
| Matrix m;
| float expected[] = {
| 1.0f, 0.0f, 0.0f, 0.0f,
| 0.0f, 1.0f, 0.0f, 0.0f,
| 0.0f, 0.0f, 1.0f, 0.0f,
| 0.0f, 0.0f, 0.0f, 1.0f};
| // Check values
| checkValues(m.mData, expected, Matrix::MATRIX_SIZE);
| }
|
| TEST(MatrixTest, matrixLoadWithTest) {
| // Create a matrix.
| Matrix m1;
| float* d1 = m1.mData;
| float data[Matrix::MATRIX_SIZE];
|
| // Fill with rubbish
| for (int i = 0; i < Matrix::MATRIX_SIZE; i++) {
| d1[i] = i;
| data[i] = i;
| }
|
| // Create another matrix
| Matrix m2;
|
| // Load second matrix with first
| m2.loadWith(m1);
|
| // Check values
| checkValues(m2.mData, data, Matrix::MATRIX_SIZE);
| }
|
| TEST(MatrixTest, matrixTranslateTest) {
| Matrix m1;
| m1.translate(10, 5, 6);
| Matrix* m2 = Matrix::newTranslate(10, 5, 6);
| ASSERT_TRUE(m2 != NULL);
| ASSERT_TRUE(m1.equals(*m2));
| delete m2;
| }
|
| TEST(MatrixTest, matrixScaleTest) {
| Matrix m1;
| m1.scale(10, 5, 6);
| Matrix* m2 = Matrix::newScale(10, 5, 6);
| ASSERT_TRUE(m2 != NULL);
| ASSERT_TRUE(m1.equals(*m2));
| delete m2;
| }
|
| TEST(MatrixTest, matrixRotateTest) {
| Matrix m1;
| m1.rotate(180, 1, 0, 1);
| Matrix* m2 = Matrix::newRotate(180, 1, 0, 1);
| ASSERT_TRUE(m2 != NULL);
| ASSERT_TRUE(m1.equals(*m2));
| delete m2;
| }
|
| TEST(MatrixTest, matrixMultiplyTest) {
| // Create three identity matrixes.
| Matrix m1;
| Matrix m2;
| Matrix m3;
| float* d1 = m1.mData;
| float* d2 = m2.mData;
|
| m3.multiply(m1, m2);
| // Multiplication of identity matrixes should give identity
| ASSERT_TRUE(m3.equals(m1));
|
| // Fill with ascending numbers
| for (int i = 0; i < Matrix::MATRIX_SIZE; i++) {
| d1[i] = i;
| d2[i] = i;
| }
| m3.multiply(m1, m2);
|
| // Check against expected
| float expected[] = {
| 56, 62, 68, 74,
| 152, 174, 196, 218,
| 248, 286, 324, 362,
| 344, 398, 452, 506};
| checkValues(m3.mData, expected, Matrix::MATRIX_SIZE);
| }
|
| TEST(MatrixTest, matrixNewLookAtTest) {
| // Position the eye in front of the origin.
| float eyeX = 0.0f;
| float eyeY = 0.0f;
| float eyeZ = 6.0f;
|
| // We are looking at the origin
| float centerX = 0.0f;
| float centerY = 0.0f;
| float centerZ = 0.0f;
|
| // Set our up vector. This is where our head would be pointing were we holding the camera.
| float upX = 0.0f;
| float upY = 1.0f;
| float upZ = 0.0f;
|
| // Set the view matrix. This matrix can be said to represent the camera position.
| Matrix* m = Matrix::newLookAt(eyeX, eyeY, eyeZ, centerX, centerY, centerZ,
| upX, upY, upZ);
| ASSERT_TRUE(m != NULL);
| float expected[] = {
| 1.0f, 0.0f, 0.0f, 0.0f,
| 0.0f, 1.0f, 0.0f, 0.0f,
| 0.0f, 0.0f, 1.0f, 0.0f,
| 0.0f, 0.0f, -6.0f, 1.0f};
| // Check values
| checkValues(m->mData, expected, Matrix::MATRIX_SIZE);
| delete m;
| }
|
| TEST(MatrixTest, matrixNewFrustumTest) {
| float ratio = (float) 800 / 600;
| float left = -ratio;
| float right = ratio;
| float bottom = -1.0f;
| float top = 1.0f;
| float near = 1.0f;
| float far = 8.0f;
|
| Matrix* m = Matrix::newFrustum(left, right, bottom, top, near, far);
| ASSERT_TRUE(m != NULL);
| float expected[] = {
| 0.75f, 0.0f, 0.0f, 0.0f,
| 0.0f, 1.0f, 0.0f, 0.0f,
| 0.0f, 0.0f, 9.0f / -7.0f, -1.0f,
| 0.0f, 0.0f, 16.0f / -7.0f, 0.0f};
| // Check values
| checkValues(m->mData, expected, Matrix::MATRIX_SIZE);
| delete m;
| }
|
| TEST(MatrixTest, matrixNewTranslateTest) {
| Matrix* m = Matrix::newTranslate(5, 6, 8);
| ASSERT_TRUE(m != NULL);
| float expected[] = {
| 1.0f, 0.0f, 0.0f, 0.0f,
| 0.0f, 1.0f, 0.0f, 0.0f,
| 0.0f, 0.0f, 1.0f, 0.0f,
| 5.0f, 6.0f, 8.0f, 1.0f};
| // Check values
| checkValues(m->mData, expected, Matrix::MATRIX_SIZE);
| delete m;
| }
|
| TEST(MatrixTest, matrixNewScaleTest) {
| Matrix* m = Matrix::newScale(3, 7, 2);
| ASSERT_TRUE(m != NULL);
| float expected[] = {
| 3.0f, 0.0f, 0.0f, 0.0f,
| 0.0f, 7.0f, 0.0f, 0.0f,
| 0.0f, 0.0f, 2.0f, 0.0f,
| 0.0f, 0.0f, 0.0f, 1.0f};
| // Check values
| checkValues(m->mData, expected, Matrix::MATRIX_SIZE);
| delete m;
| }
|
| TEST(MatrixTest, matrixNewRotateTest) {
| Matrix* m = Matrix::newRotate(45.0f, 0.0f, 1.0f, 0.0f);
| ASSERT_TRUE(m != NULL);
| float radians = 45.0f * (M_PI / 180.0f);
| float sin = sinf(radians);
| float cos = cosf(radians);
| float expected[] = {
| cos, 0.0f, -sin, 0.0f,
| 0.0f, 1.0f, 0.0f, 0.0f,
| sin, 0.0f, cos, 0.0f,
| 0.0f, 0.0f, 0.0f, 1.0f};
| // Check values
| checkValues(m->mData, expected, Matrix::MATRIX_SIZE);
| delete m;
| }
|
| TEST(MatrixTest, matrixMultiplyVectorTest) {
| float in[] = {2, 4, 6, 8};
| float out[4];
| Matrix m;
| float* d = m.mData;
| // Fill with rubbish
| for (int i = 0; i < Matrix::MATRIX_SIZE; i++) {
| d[i] = i;
| }
| float expected[] = {40, 120, 200, 280};
| Matrix::multiplyVector(out, m, in);
| checkValues(out, expected, 4);
| }
|
|
