| /* |
| * Copyright 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <math/vec3.h> |
| #include <math/half.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wgnu-anonymous-struct" |
| #pragma clang diagnostic ignored "-Wnested-anon-types" |
| |
| namespace android { |
| // ------------------------------------------------------------------------------------- |
| |
| namespace details { |
| |
| template <typename T> |
| class TVec4 : public TVecProductOperators<TVec4, T>, |
| public TVecAddOperators<TVec4, T>, |
| public TVecUnaryOperators<TVec4, T>, |
| public TVecComparisonOperators<TVec4, T>, |
| public TVecFunctions<TVec4, T>, |
| public TVecDebug<TVec4, T> { |
| public: |
| enum no_init { NO_INIT }; |
| typedef T value_type; |
| typedef T& reference; |
| typedef T const& const_reference; |
| typedef size_t size_type; |
| |
| union { |
| struct { T x, y, z, w; }; |
| struct { T s, t, p, q; }; |
| struct { T r, g, b, a; }; |
| TVec2<T> xy; |
| TVec2<T> st; |
| TVec2<T> rg; |
| TVec3<T> xyz; |
| TVec3<T> stp; |
| TVec3<T> rgb; |
| }; |
| |
| static constexpr size_t SIZE = 4; |
| inline constexpr size_type size() const { return SIZE; } |
| |
| // array access |
| inline constexpr T const& operator[](size_t i) const { |
| #if __cplusplus >= 201402L |
| // only possible in C++0x14 with constexpr |
| assert(i < SIZE); |
| #endif |
| return (&x)[i]; |
| } |
| |
| inline T& operator[](size_t i) { |
| assert(i < SIZE); |
| return (&x)[i]; |
| } |
| |
| // ----------------------------------------------------------------------- |
| // we want the compiler generated versions for these... |
| TVec4(const TVec4&) = default; |
| ~TVec4() = default; |
| TVec4& operator = (const TVec4&) = default; |
| |
| // constructors |
| |
| // leaves object uninitialized. use with caution. |
| explicit |
| constexpr TVec4(no_init) { } |
| |
| // default constructor |
| constexpr TVec4() : x(0), y(0), z(0), w(0) { } |
| |
| // handles implicit conversion to a tvec4. must not be explicit. |
| template<typename A, typename = typename std::enable_if<std::is_arithmetic<A>::value >::type> |
| constexpr TVec4(A v) : x(v), y(v), z(v), w(v) { } |
| |
| template<typename A, typename B, typename C, typename D> |
| constexpr TVec4(A x, B y, C z, D w) : x(x), y(y), z(z), w(w) { } |
| |
| template<typename A, typename B, typename C> |
| constexpr TVec4(const TVec2<A>& v, B z, C w) : x(v.x), y(v.y), z(z), w(w) { } |
| |
| template<typename A, typename B> |
| constexpr TVec4(const TVec3<A>& v, B w) : x(v.x), y(v.y), z(v.z), w(w) { } |
| |
| template<typename A> |
| explicit |
| constexpr TVec4(const TVec4<A>& v) : x(v.x), y(v.y), z(v.z), w(v.w) { } |
| }; |
| |
| } // namespace details |
| |
| // ---------------------------------------------------------------------------------------- |
| |
| typedef details::TVec4<double> double4; |
| typedef details::TVec4<float> float4; |
| typedef details::TVec4<float> vec4; |
| typedef details::TVec4<half> half4; |
| typedef details::TVec4<int32_t> int4; |
| typedef details::TVec4<uint32_t> uint4; |
| typedef details::TVec4<int16_t> short4; |
| typedef details::TVec4<uint16_t> ushort4; |
| typedef details::TVec4<int8_t> byte4; |
| typedef details::TVec4<uint8_t> ubyte4; |
| typedef details::TVec4<bool> bool4; |
| |
| // ---------------------------------------------------------------------------------------- |
| } // namespace android |
| |
| #pragma clang diagnostic pop |