vec2.h revision 595ea77f6bdb5e9d0ddd3305da7a44b56f326b2c
1595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian/* 2595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * Copyright 2013 The Android Open Source Project 3595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * 4595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 5595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * you may not use this file except in compliance with the License. 6595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * You may obtain a copy of the License at 7595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * 8595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 9595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * 10595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * Unless required by applicable law or agreed to in writing, software 11595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 12595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * See the License for the specific language governing permissions and 14595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian * limitations under the License. 15595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian */ 16595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 17595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#ifndef UI_VEC2_H 18595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#define UI_VEC2_H 19595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 20595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <stdint.h> 21595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <sys/types.h> 22595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 23595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#define TVEC_IMPLEMENTATION 24595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <ui/TVecHelpers.h> 25595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 26595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiannamespace android { 27595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ------------------------------------------------------------------------------------- 28595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 29595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiantemplate <typename T> 30595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopianclass tvec2 : public TVecArithmeticOperators<tvec2, T>, 31595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecUnaryOperators<tvec2, T>, 32595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecComparisonOperators<tvec2, T>, 33595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecFunctions<tvec2, T> 34595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian{ 35595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopianpublic: 36595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian enum no_init { NO_INIT }; 37595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian typedef T value_type; 38595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian typedef T& reference; 39595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian typedef T const& const_reference; 40595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian typedef size_t size_type; 41595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 42595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian union { 43595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian struct { T x, y; }; 44595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian struct { T s, t; }; 45595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian struct { T r, g; }; 46595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian }; 47595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 48595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian enum { SIZE = 2 }; 49595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline static size_type size() { return SIZE; } 50595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 51595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // array access 52595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline T const& operator [] (size_t i) const { return (&x)[i]; } 53595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline T& operator [] (size_t i) { return (&x)[i]; } 54595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 55595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // ----------------------------------------------------------------------- 56595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // we don't provide copy-ctor and operator= on purpose 57595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // because we want the compiler generated versions 58595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 59595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // constructors 60595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 61595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // leaves object uninitialized. use with caution. 62595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian explicit tvec2(no_init) { } 63595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 64595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // default constructor 65595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec2() : x(0), y(0) { } 66595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 67595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // handles implicit conversion to a tvec4. must not be explicit. 68595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A> 69595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec2(A v) : x(v), y(v) { } 70595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 71595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A, typename B> 72595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec2(A x, B y) : x(x), y(y) { } 73595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 74595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A> 75595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian explicit tvec2(const tvec2<A>& v) : x(v.x), y(v.y) { } 76595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian}; 77595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 78595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ---------------------------------------------------------------------------------------- 79595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 80595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiantypedef tvec2<float> vec2; 81595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 82595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ---------------------------------------------------------------------------------------- 83595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian}; // namespace android 84595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 85595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#endif /* UI_VEC4_H */ 86