vec_test.cpp revision 595ea77f6bdb5e9d0ddd3305da7a44b56f326b2c 
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/vec4.h>
25
26namespace android {
27
28class VecTest : public testing::Test {
29protected:
30};
31
32TEST_F(VecTest, Basics) {
33    vec4 v4;
34    vec3& v3(v4.xyz);
35
36    EXPECT_EQ(sizeof(vec4), sizeof(float)*4);
37    EXPECT_EQ(sizeof(vec3), sizeof(float)*3);
38    EXPECT_EQ(sizeof(vec2), sizeof(float)*2);
39    EXPECT_EQ((void*)&v3, (void*)&v4);
40}
41
42TEST_F(VecTest, Constructors) {
43    vec4 v0;
44    EXPECT_EQ(v0.x, 0);
45    EXPECT_EQ(v0.y, 0);
46    EXPECT_EQ(v0.z, 0);
47    EXPECT_EQ(v0.w, 0);
48
49    vec4 v1(1);
50    EXPECT_EQ(v1.x, 1);
51    EXPECT_EQ(v1.y, 1);
52    EXPECT_EQ(v1.z, 1);
53    EXPECT_EQ(v1.w, 1);
54
55    vec4 v2(1,2,3,4);
56    EXPECT_EQ(v2.x, 1);
57    EXPECT_EQ(v2.y, 2);
58    EXPECT_EQ(v2.z, 3);
59    EXPECT_EQ(v2.w, 4);
60
61    vec4 v3(v2);
62    EXPECT_EQ(v3.x, 1);
63    EXPECT_EQ(v3.y, 2);
64    EXPECT_EQ(v3.z, 3);
65    EXPECT_EQ(v3.w, 4);
66
67    vec4 v4(v3.xyz, 42);
68    EXPECT_EQ(v4.x, 1);
69    EXPECT_EQ(v4.y, 2);
70    EXPECT_EQ(v4.z, 3);
71    EXPECT_EQ(v4.w, 42);
72
73    vec4 v5(vec3(v2.xy, 42), 24);
74    EXPECT_EQ(v5.x, 1);
75    EXPECT_EQ(v5.y, 2);
76    EXPECT_EQ(v5.z, 42);
77    EXPECT_EQ(v5.w, 24);
78
79    tvec4<double> vd(2);
80    EXPECT_EQ(vd.x, 2);
81    EXPECT_EQ(vd.y, 2);
82    EXPECT_EQ(vd.z, 2);
83    EXPECT_EQ(vd.w, 2);
84}
85
86TEST_F(VecTest, Access) {
87    vec4 v0(1,2,3,4);
88    v0.x = 10;
89    v0.y = 20;
90    v0.z = 30;
91    v0.w = 40;
92    EXPECT_EQ(v0.x, 10);
93    EXPECT_EQ(v0.y, 20);
94    EXPECT_EQ(v0.z, 30);
95    EXPECT_EQ(v0.w, 40);
96
97    v0[0] = 100;
98    v0[1] = 200;
99    v0[2] = 300;
100    v0[3] = 400;
101    EXPECT_EQ(v0.x, 100);
102    EXPECT_EQ(v0.y, 200);
103    EXPECT_EQ(v0.z, 300);
104    EXPECT_EQ(v0.w, 400);
105
106    v0.xyz = vec3(1,2,3);
107    EXPECT_EQ(v0.x, 1);
108    EXPECT_EQ(v0.y, 2);
109    EXPECT_EQ(v0.z, 3);
110    EXPECT_EQ(v0.w, 400);
111}
112
113TEST_F(VecTest, UnaryOps) {
114    vec4 v0(1,2,3,4);
115
116    v0 += 1;
117    EXPECT_EQ(v0.x, 2);
118    EXPECT_EQ(v0.y, 3);
119    EXPECT_EQ(v0.z, 4);
120    EXPECT_EQ(v0.w, 5);
121
122    v0 -= 1;
123    EXPECT_EQ(v0.x, 1);
124    EXPECT_EQ(v0.y, 2);
125    EXPECT_EQ(v0.z, 3);
126    EXPECT_EQ(v0.w, 4);
127
128    v0 *= 2;
129    EXPECT_EQ(v0.x, 2);
130    EXPECT_EQ(v0.y, 4);
131    EXPECT_EQ(v0.z, 6);
132    EXPECT_EQ(v0.w, 8);
133
134    v0 /= 2;
135    EXPECT_EQ(v0.x, 1);
136    EXPECT_EQ(v0.y, 2);
137    EXPECT_EQ(v0.z, 3);
138    EXPECT_EQ(v0.w, 4);
139
140    vec4 v1(10, 20, 30, 40);
141
142    v0 += v1;
143    EXPECT_EQ(v0.x, 11);
144    EXPECT_EQ(v0.y, 22);
145    EXPECT_EQ(v0.z, 33);
146    EXPECT_EQ(v0.w, 44);
147
148    v0 -= v1;
149    EXPECT_EQ(v0.x, 1);
150    EXPECT_EQ(v0.y, 2);
151    EXPECT_EQ(v0.z, 3);
152    EXPECT_EQ(v0.w, 4);
153
154    v0 *= v1;
155    EXPECT_EQ(v0.x, 10);
156    EXPECT_EQ(v0.y, 40);
157    EXPECT_EQ(v0.z, 90);
158    EXPECT_EQ(v0.w, 160);
159
160    v0 /= v1;
161    EXPECT_EQ(v0.x, 1);
162    EXPECT_EQ(v0.y, 2);
163    EXPECT_EQ(v0.z, 3);
164    EXPECT_EQ(v0.w, 4);
165
166    ++v0;
167    EXPECT_EQ(v0.x, 2);
168    EXPECT_EQ(v0.y, 3);
169    EXPECT_EQ(v0.z, 4);
170    EXPECT_EQ(v0.w, 5);
171
172    ++++v0;
173    EXPECT_EQ(v0.x, 4);
174    EXPECT_EQ(v0.y, 5);
175    EXPECT_EQ(v0.z, 6);
176    EXPECT_EQ(v0.w, 7);
177
178    --v1;
179    EXPECT_EQ(v1.x,  9);
180    EXPECT_EQ(v1.y, 19);
181    EXPECT_EQ(v1.z, 29);
182    EXPECT_EQ(v1.w, 39);
183
184    v1 = -v1;
185    EXPECT_EQ(v1.x,  -9);
186    EXPECT_EQ(v1.y, -19);
187    EXPECT_EQ(v1.z, -29);
188    EXPECT_EQ(v1.w, -39);
189
190    tvec4<double> dv(1,2,3,4);
191    v1 += dv;
192    EXPECT_EQ(v1.x,  -8);
193    EXPECT_EQ(v1.y, -17);
194    EXPECT_EQ(v1.z, -26);
195    EXPECT_EQ(v1.w, -35);
196}
197
198TEST_F(VecTest, ComparisonOps) {
199    vec4 v0(1,2,3,4);
200    vec4 v1(10,20,30,40);
201
202    EXPECT_TRUE(v0 == v0);
203    EXPECT_TRUE(v0 != v1);
204    EXPECT_FALSE(v0 != v0);
205    EXPECT_FALSE(v0 == v1);
206}
207
208TEST_F(VecTest, ArithmeticOps) {
209    vec4 v0(1,2,3,4);
210    vec4 v1(10,20,30,40);
211
212    vec4 v2(v0 + v1);
213    EXPECT_EQ(v2.x, 11);
214    EXPECT_EQ(v2.y, 22);
215    EXPECT_EQ(v2.z, 33);
216    EXPECT_EQ(v2.w, 44);
217
218    v0 = v1 * 2;
219    EXPECT_EQ(v0.x, 20);
220    EXPECT_EQ(v0.y, 40);
221    EXPECT_EQ(v0.z, 60);
222    EXPECT_EQ(v0.w, 80);
223
224    v0 = 2 * v1;
225    EXPECT_EQ(v0.x, 20);
226    EXPECT_EQ(v0.y, 40);
227    EXPECT_EQ(v0.z, 60);
228    EXPECT_EQ(v0.w, 80);
229
230    tvec4<double> vd(2);
231    v0 = v1 * vd;
232    EXPECT_EQ(v0.x, 20);
233    EXPECT_EQ(v0.y, 40);
234    EXPECT_EQ(v0.z, 60);
235    EXPECT_EQ(v0.w, 80);
236}
237
238TEST_F(VecTest, ArithmeticFunc) {
239    vec3 east(1, 0, 0);
240    vec3 north(0, 1, 0);
241    vec3 up( cross(east, north) );
242    EXPECT_EQ(up, vec3(0,0,1));
243    EXPECT_EQ(dot(east, north), 0);
244    EXPECT_EQ(length(east), 1);
245    EXPECT_EQ(distance(east, north), sqrtf(2));
246
247    vec3 v0(1,2,3);
248    vec3 vn(normalize(v0));
249    EXPECT_FLOAT_EQ(1, length(vn));
250    EXPECT_FLOAT_EQ(length(v0), dot(v0, vn));
251
252    tvec3<double> vd(east);
253    EXPECT_EQ(length(vd), 1);
254}
255
256}; // namespace android
257