1 /*
2 * Copyright (C) Texas Instruments - http://www.ti.com/
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 #ifndef TI_UTILS_COMMON_H
18 #define TI_UTILS_COMMON_H
19
20 #include <android/api-level.h>
21 #include <android/log.h>
22
23
24
25 namespace Ti {
26
27
28
29
30 // default float point type
31 typedef float real;
32
33
34
35
36 template <typename T>
37 int floor(T x);
38
39 template <typename T>
40 int round(T x);
41
42 template <typename T>
43 const T & min(const T & a, const T & b);
44
45 template <typename T>
46 const T & max(const T & a, const T & b);
47
48 template <typename T>
49 const T & bound(const T & min, const T & x, const T & max);
50
51 template <typename T>
52 T abs(const T & x);
53
54
55
56
57 template <typename T>
floor(const T x)58 inline int floor(const T x) {
59 return static_cast<int>(x);
60 }
61
62 template <typename T>
round(const T x)63 inline int round(const T x) {
64 if ( x >= 0 ) {
65 return floor(x + T(0.5));
66 } else {
67 return floor(x - floor(x - T(1)) + T(0.5)) + floor(x - T(1));
68 }
69 }
70
71 template <typename T>
min(const T & a,const T & b)72 inline const T & min(const T & a, const T & b) {
73 return a < b ? a : b;
74 }
75
76 template <typename T>
max(const T & a,const T & b)77 inline const T & max(const T & a, const T & b) {
78 return a < b ? b : a;
79 }
80
81 template <typename T>
bound(const T & min,const T & x,const T & max)82 inline const T & bound(const T & min, const T & x, const T & max) {
83 return x < min ? min : x > max ? max : x;
84 }
85
86 template <typename T>
abs(const T & x)87 inline T abs(const T & x) {
88 return x >= 0 ? x : -x;
89 }
90
91
92
93
94 } // namespace Ti
95
96
97
98
99 #endif // TI_UTILS_COMMON_H
100