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_VEC3_H 18595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#define UI_VEC3_H 19595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 20595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <stdint.h> 21595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <sys/types.h> 22595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 23595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#include <ui/vec2.h> 24595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 25595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiannamespace android { 26595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ------------------------------------------------------------------------------------- 27595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 28595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiantemplate <typename T> 291d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopianclass tvec3 : public TVecProductOperators<tvec3, T>, 301d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian public TVecAddOperators<tvec3, T>, 31595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecUnaryOperators<tvec3, T>, 32595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecComparisonOperators<tvec3, T>, 33595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian public TVecFunctions<tvec3, 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, z; }; 44595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian struct { T s, t, p; }; 45595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian struct { T r, g, b; }; 46595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian Impersonator< tvec2<T> > xy; 47595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian Impersonator< tvec2<T> > st; 48595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian Impersonator< tvec2<T> > rg; 49595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian }; 50595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 51595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian enum { SIZE = 3 }; 52595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline static size_type size() { return SIZE; } 53595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 54595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // array access 55595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline T const& operator [] (size_t i) const { return (&x)[i]; } 56595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian inline T& operator [] (size_t i) { return (&x)[i]; } 57595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 58595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // ----------------------------------------------------------------------- 59595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // we don't provide copy-ctor and operator= on purpose 60595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // because we want the compiler generated versions 61595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 62595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // constructors 63595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // leaves object uninitialized. use with caution. 64595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian explicit tvec3(no_init) { } 65595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 66595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // default constructor 67595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3() : x(0), y(0), z(0) { } 68595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 69595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // handles implicit conversion to a tvec4. must not be explicit. 70595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A> 71595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3(A v) : x(v), y(v), z(v) { } 72595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 73595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A, typename B, typename C> 74595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3(A x, B y, C z) : x(x), y(y), z(z) { } 75595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 76595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A, typename B> 77595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3(const tvec2<A>& v, B z) : x(v.x), y(v.y), z(z) { } 78595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 79595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A> 80595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian explicit tvec3(const tvec3<A>& v) : x(v.x), y(v.y), z(v.z) { } 81595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 821d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian template<typename A> 831d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian tvec3(const Impersonator< tvec3<A> >& v) 841d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian : x(((const tvec3<A>&)v).x), 851d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian y(((const tvec3<A>&)v).y), 861d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian z(((const tvec3<A>&)v).z) { } 871d4d8f94e2989b7c8667602304df9059d2701653Mathias Agopian 88595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template<typename A, typename B> 89595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3(const Impersonator< tvec2<A> >& v, B z) 90595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian : x(((const tvec2<A>&)v).x), 91595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian y(((const tvec2<A>&)v).y), 92595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian z(z) { } 93595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 94595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian // cross product works only on vectors of size 3 95595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian template <typename RT> 96595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian friend inline 97595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian tvec3 __attribute__((pure)) cross(const tvec3& u, const tvec3<RT>& v) { 98595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian return tvec3( 99595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian u.y*v.z - u.z*v.y, 100595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian u.z*v.x - u.x*v.z, 101595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian u.x*v.y - u.y*v.x); 102595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian } 103595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian}; 104595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 105595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 106595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ---------------------------------------------------------------------------------------- 107595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 108595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopiantypedef tvec3<float> vec3; 109595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 110595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian// ---------------------------------------------------------------------------------------- 111595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian}; // namespace android 112595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian 113595ea77f6bdb5e9d0ddd3305da7a44b56f326b2cMathias Agopian#endif /* UI_VEC4_H */ 114