1 /* 2 * Copyright 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "RegionTest" 18 19 #include <stdlib.h> 20 #include <ui/Region.h> 21 #include <ui/Rect.h> 22 #include <gtest/gtest.h> 23 24 #include <ui/mat4.h> 25 26 namespace android { 27 28 class MatTest : public testing::Test { 29 protected: 30 }; 31 32 TEST_F(MatTest, Basics) { 33 mat4 m0; 34 EXPECT_EQ(sizeof(mat4), sizeof(float)*16); 35 } 36 37 TEST_F(MatTest, ComparisonOps) { 38 mat4 m0; 39 mat4 m1(2); 40 41 EXPECT_TRUE(m0 == m0); 42 EXPECT_TRUE(m0 != m1); 43 EXPECT_FALSE(m0 != m0); 44 EXPECT_FALSE(m0 == m1); 45 } 46 47 TEST_F(MatTest, Constructors) { 48 mat4 m0; 49 ASSERT_EQ(m0[0].x, 1); 50 ASSERT_EQ(m0[0].y, 0); 51 ASSERT_EQ(m0[0].z, 0); 52 ASSERT_EQ(m0[0].w, 0); 53 ASSERT_EQ(m0[1].x, 0); 54 ASSERT_EQ(m0[1].y, 1); 55 ASSERT_EQ(m0[1].z, 0); 56 ASSERT_EQ(m0[1].w, 0); 57 ASSERT_EQ(m0[2].x, 0); 58 ASSERT_EQ(m0[2].y, 0); 59 ASSERT_EQ(m0[2].z, 1); 60 ASSERT_EQ(m0[2].w, 0); 61 ASSERT_EQ(m0[3].x, 0); 62 ASSERT_EQ(m0[3].y, 0); 63 ASSERT_EQ(m0[3].z, 0); 64 ASSERT_EQ(m0[3].w, 1); 65 66 mat4 m1(2); 67 mat4 m2(vec4(2)); 68 mat4 m3(m2); 69 70 EXPECT_EQ(m1, m2); 71 EXPECT_EQ(m2, m3); 72 EXPECT_EQ(m3, m1); 73 74 mat4 m4(vec4(1), vec4(2), vec4(3), vec4(4)); 75 } 76 77 TEST_F(MatTest, ArithmeticOps) { 78 mat4 m0; 79 mat4 m1(2); 80 mat4 m2(vec4(2)); 81 82 m1 += m2; 83 EXPECT_EQ(mat4(4), m1); 84 85 m2 -= m1; 86 EXPECT_EQ(mat4(-2), m2); 87 88 m1 *= 2; 89 EXPECT_EQ(mat4(8), m1); 90 91 m1 /= 2; 92 EXPECT_EQ(mat4(4), m1); 93 94 m0 = -m0; 95 EXPECT_EQ(mat4(-1), m0); 96 } 97 98 TEST_F(MatTest, UnaryOps) { 99 const mat4 identity; 100 mat4 m0; 101 102 ++m0; 103 EXPECT_EQ(mat4( vec4(2,1,1,1), vec4(1,2,1,1), vec4(1,1,2,1), vec4(1,1,1,2) ), m0); 104 EXPECT_EQ(mat4( -vec4(2,1,1,1), -vec4(1,2,1,1), -vec4(1,1,2,1), -vec4(1,1,1,2) ), -m0); 105 106 --m0; 107 EXPECT_EQ(identity, m0); 108 } 109 110 TEST_F(MatTest, MiscOps) { 111 const mat4 identity; 112 mat4 m0; 113 EXPECT_EQ(4, trace(m0)); 114 115 mat4 m1(vec4(1,2,3,4), vec4(5,6,7,8), vec4(9,10,11,12), vec4(13,14,15,16)); 116 mat4 m2(vec4(1,5,9,13), vec4(2,6,10,14), vec4(3,7,11,15), vec4(4,8,12,16)); 117 EXPECT_EQ(m1, transpose(m2)); 118 EXPECT_EQ(m2, transpose(m1)); 119 EXPECT_EQ(vec4(1,6,11,16), diag(m1)); 120 121 EXPECT_EQ(identity, inverse(identity)); 122 123 mat4 m3(vec4(4,3,0,0), vec4(3,2,0,0), vec4(0,0,1,0), vec4(0,0,0,1)); 124 mat4 m3i(inverse(m3)); 125 EXPECT_FLOAT_EQ(-2, m3i[0][0]); 126 EXPECT_FLOAT_EQ( 3, m3i[0][1]); 127 EXPECT_FLOAT_EQ( 3, m3i[1][0]); 128 EXPECT_FLOAT_EQ(-4, m3i[1][1]); 129 130 mat4 m3ii(inverse(m3i)); 131 EXPECT_FLOAT_EQ(m3[0][0], m3ii[0][0]); 132 EXPECT_FLOAT_EQ(m3[0][1], m3ii[0][1]); 133 EXPECT_FLOAT_EQ(m3[1][0], m3ii[1][0]); 134 EXPECT_FLOAT_EQ(m3[1][1], m3ii[1][1]); 135 136 EXPECT_EQ(m1, m1*identity); 137 } 138 139 }; // namespace android 140
