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
TEST_F(MatTest,Basics)32 TEST_F(MatTest, Basics) {
33 mat4 m0;
34 EXPECT_EQ(sizeof(mat4), sizeof(float)*16);
35 }
36
TEST_F(MatTest,ComparisonOps)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
TEST_F(MatTest,Constructors)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
TEST_F(MatTest,ArithmeticOps)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
TEST_F(MatTest,UnaryOps)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
TEST_F(MatTest,MiscOps)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