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 25namespace Ti { 26 27 28 29 30// default float point type 31typedef float real; 32 33 34 35 36template <typename T> 37int floor(T x); 38 39template <typename T> 40int round(T x); 41 42template <typename T> 43const T & min(const T & a, const T & b); 44 45template <typename T> 46const T & max(const T & a, const T & b); 47 48template <typename T> 49const T & bound(const T & min, const T & x, const T & max); 50 51template <typename T> 52T abs(const T & x); 53 54 55 56 57template <typename T> 58inline int floor(const T x) { 59 return static_cast<int>(x); 60} 61 62template <typename T> 63inline 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 71template <typename T> 72inline const T & min(const T & a, const T & b) { 73 return a < b ? a : b; 74} 75 76template <typename T> 77inline const T & max(const T & a, const T & b) { 78 return a < b ? b : a; 79} 80 81template <typename T> 82inline const T & bound(const T & min, const T & x, const T & max) { 83 return x < min ? min : x > max ? max : x; 84} 85 86template <typename T> 87inline 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