You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
2.6 KiB
92 lines
2.6 KiB
6 years ago
|
/*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef UI_VEC2_H
|
||
|
|
#define UI_VEC2_H
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#define TVEC_IMPLEMENTATION
|
||
|
|
#include <ui/TVecHelpers.h>
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
// -------------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
template <typename T>
|
||
|
|
class tvec2 : public TVecProductOperators<tvec2, T>,
|
||
|
|
public TVecAddOperators<tvec2, T>,
|
||
|
|
public TVecUnaryOperators<tvec2, T>,
|
||
|
|
public TVecComparisonOperators<tvec2, T>,
|
||
|
|
public TVecFunctions<tvec2, 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; };
|
||
|
|
struct { T s, t; };
|
||
|
|
struct { T r, g; };
|
||
|
|
};
|
||
|
|
|
||
|
|
enum { SIZE = 2 };
|
||
|
|
inline static size_type size() { return SIZE; }
|
||
|
|
|
||
|
|
// array access
|
||
|
|
inline T const& operator [] (size_t i) const { return (&x)[i]; }
|
||
|
|
inline T& operator [] (size_t i) { return (&x)[i]; }
|
||
|
|
|
||
|
|
// -----------------------------------------------------------------------
|
||
|
|
// we don't provide copy-ctor and operator= on purpose
|
||
|
|
// because we want the compiler generated versions
|
||
|
|
|
||
|
|
// constructors
|
||
|
|
|
||
|
|
// leaves object uninitialized. use with caution.
|
||
|
|
explicit tvec2(no_init) { }
|
||
|
|
|
||
|
|
// default constructor
|
||
|
|
tvec2() : x(0), y(0) { }
|
||
|
|
|
||
|
|
// handles implicit conversion to a tvec4. must not be explicit.
|
||
|
|
template<typename A>
|
||
|
|
tvec2(A v) : x(v), y(v) { }
|
||
|
|
|
||
|
|
template<typename A, typename B>
|
||
|
|
tvec2(A x, B y) : x(x), y(y) { }
|
||
|
|
|
||
|
|
template<typename A>
|
||
|
|
explicit tvec2(const tvec2<A>& v) : x(v.x), y(v.y) { }
|
||
|
|
|
||
|
|
template<typename A>
|
||
|
|
tvec2(const Impersonator< tvec2<A> >& v)
|
||
|
|
: x(((const tvec2<A>&)v).x),
|
||
|
|
y(((const tvec2<A>&)v).y) { }
|
||
|
|
};
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
typedef tvec2<float> vec2;
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------------------------
|
||
|
|
}; // namespace android
|
||
|
|
|
||
|
|
#endif /* UI_VEC4_H */
|