mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 01:37:35 +00:00
LibGfx: Refactor Vector[2,3,4] to VectorN with specializations
`Gfx::Vector[2,3,4]` are nearly identical implementations. This code redundancy does not follow the DRY (Don't Repeat Yourself) principle leading to possible out-of-sync errors between the classes. Combining these classes into a class template which can be specialized for each needed size makes the differences obvious through `constexpr-if` blocks and `requires` clauses.
This commit is contained in:
parent
c2a66b77df
commit
d144da3a62
4 changed files with 252 additions and 397 deletions
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@ -1,132 +1,24 @@
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/*
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* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Math.h>
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#include <AK/String.h>
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#include "VectorN.h"
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#include <AK/Error.h>
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#include <AK/Format.h>
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#include <AK/StringView.h>
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namespace Gfx {
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template<typename T>
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class Vector2 final {
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public:
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constexpr Vector2() = default;
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constexpr Vector2(T x, T y)
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: m_x(x)
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, m_y(y)
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{
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}
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constexpr T x() const { return m_x; }
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constexpr T y() const { return m_y; }
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constexpr void set_x(T value) { m_x = value; }
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constexpr void set_y(T value) { m_y = value; }
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constexpr Vector2& operator+=(const Vector2& other)
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{
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m_x += other.m_x;
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m_y += other.m_y;
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return *this;
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}
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constexpr Vector2& operator-=(const Vector2& other)
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{
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m_x -= other.m_x;
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m_y -= other.m_y;
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return *this;
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}
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constexpr Vector2 operator+(const Vector2& other) const
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{
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return Vector2(m_x + other.m_x, m_y + other.m_y);
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}
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constexpr Vector2 operator-(const Vector2& other) const
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{
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return Vector2(m_x - other.m_x, m_y - other.m_y);
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}
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constexpr Vector2 operator-() const
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{
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return Vector2(-m_x, -m_y);
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}
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constexpr Vector2 operator*(const Vector2& other) const
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{
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return Vector2(m_x * other.m_x, m_y * other.m_y);
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}
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constexpr Vector2 operator/(const Vector2& other) const
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{
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return Vector2(m_x / other.m_x, m_y / other.m_y);
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}
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template<typename U>
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constexpr Vector2 operator*(U f) const
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{
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return Vector2(m_x * f, m_y * f);
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}
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template<typename U>
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constexpr Vector2 operator/(U f) const
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{
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return Vector2(m_x / f, m_y / f);
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}
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constexpr T dot(const Vector2& other) const
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{
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return m_x * other.m_x + m_y * other.m_y;
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}
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constexpr Vector2 normalized() const
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{
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T inv_length = 1 / length();
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return *this * inv_length;
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}
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constexpr Vector2 clamped(T m, T x) const
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{
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Vector2 copy { *this };
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copy.clamp(m, x);
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return copy;
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}
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constexpr void clamp(T min_value, T max_value)
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{
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m_x = max(min_value, m_x);
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m_y = max(min_value, m_y);
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m_x = min(max_value, m_x);
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m_y = min(max_value, m_y);
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}
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constexpr void normalize()
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{
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T inv_length = 1 / length();
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m_x *= inv_length;
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m_y *= inv_length;
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}
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constexpr T length() const
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{
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return AK::hypot(m_x, m_y);
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}
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String to_string() const
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{
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return String::formatted("[{},{}]", x(), y());
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}
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private:
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T m_x;
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T m_y;
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};
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typedef Vector2<float> FloatVector2;
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typedef Vector2<double> DoubleVector2;
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template<class T>
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using Vector2 = VectorN<2, T>;
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using FloatVector2 = Vector2<float>;
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using DoubleVector2 = Vector2<double>;
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}
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@ -1,149 +1,24 @@
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/*
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* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Math.h>
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#include <AK/String.h>
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#include "VectorN.h"
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#include <AK/Error.h>
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#include <AK/Format.h>
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#include <AK/StringView.h>
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namespace Gfx {
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template<typename T>
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class Vector3 final {
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public:
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constexpr Vector3() = default;
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constexpr Vector3(T x, T y, T z)
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: m_x(x)
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, m_y(y)
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, m_z(z)
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{
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}
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constexpr T x() const { return m_x; }
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constexpr T y() const { return m_y; }
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constexpr T z() const { return m_z; }
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constexpr void set_x(T value) { m_x = value; }
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constexpr void set_y(T value) { m_y = value; }
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constexpr void set_z(T value) { m_z = value; }
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constexpr Vector3& operator+=(const Vector3& other)
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{
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m_x += other.m_x;
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m_y += other.m_y;
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m_z += other.m_z;
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return *this;
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}
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constexpr Vector3& operator-=(const Vector3& other)
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{
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m_x -= other.m_x;
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m_y -= other.m_y;
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m_z -= other.m_z;
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return *this;
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}
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constexpr Vector3 operator+(const Vector3& other) const
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{
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return Vector3(m_x + other.m_x, m_y + other.m_y, m_z + other.m_z);
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}
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constexpr Vector3 operator-(const Vector3& other) const
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{
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return Vector3(m_x - other.m_x, m_y - other.m_y, m_z - other.m_z);
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}
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constexpr Vector3 operator-() const
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{
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return Vector3(-m_x, -m_y, -m_z);
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}
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constexpr Vector3 operator*(const Vector3& other) const
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{
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return Vector3(m_x * other.m_x, m_y * other.m_y, m_z * other.m_z);
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}
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constexpr Vector3 operator/(const Vector3& other) const
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{
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return Vector3(m_x / other.m_x, m_y / other.m_y, m_z / other.m_z);
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}
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template<typename U>
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constexpr Vector3 operator*(U f) const
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{
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return Vector3(m_x * f, m_y * f, m_z * f);
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}
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template<typename U>
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constexpr Vector3 operator/(U f) const
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{
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return Vector3(m_x / f, m_y / f, m_z / f);
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}
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constexpr T dot(const Vector3& other) const
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{
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return m_x * other.m_x + m_y * other.m_y + m_z * other.m_z;
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}
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constexpr Vector3 cross(const Vector3& other) const
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{
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return Vector3(
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m_y * other.m_z - m_z * other.m_y,
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m_z * other.m_x - m_x * other.m_z,
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m_x * other.m_y - m_y * other.m_x);
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}
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constexpr Vector3 normalized() const
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{
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T inv_length = 1 / length();
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return *this * inv_length;
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}
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constexpr Vector3 clamped(T m, T x) const
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{
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Vector3 copy { *this };
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copy.clamp(m, x);
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return copy;
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}
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constexpr void clamp(T min_value, T max_value)
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{
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m_x = max(min_value, m_x);
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m_y = max(min_value, m_y);
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m_z = max(min_value, m_z);
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m_x = min(max_value, m_x);
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m_y = min(max_value, m_y);
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m_z = min(max_value, m_z);
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}
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constexpr void normalize()
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{
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T inv_length = 1 / length();
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m_x *= inv_length;
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m_y *= inv_length;
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m_z *= inv_length;
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}
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constexpr T length() const
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{
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return AK::sqrt(m_x * m_x + m_y * m_y + m_z * m_z);
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}
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String to_string() const
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{
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return String::formatted("[{},{},{}]", x(), y(), z());
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}
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private:
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T m_x;
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T m_y;
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T m_z;
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};
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typedef Vector3<float> FloatVector3;
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typedef Vector3<double> DoubleVector3;
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template<class T>
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using Vector3 = VectorN<3, T>;
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using FloatVector3 = Vector3<float>;
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using DoubleVector3 = Vector3<double>;
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}
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@ -1,158 +1,24 @@
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/*
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* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Math.h>
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#include <AK/String.h>
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#include "VectorN.h"
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#include <AK/Error.h>
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#include <AK/Format.h>
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#include <AK/StringView.h>
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namespace Gfx {
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template<typename T>
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class Vector3;
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template<typename T>
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class Vector4 final {
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public:
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constexpr Vector4() = default;
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constexpr Vector4(T x, T y, T z, T w)
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: m_x(x)
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, m_y(y)
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, m_z(z)
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, m_w(w)
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{
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}
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constexpr T x() const { return m_x; }
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constexpr T y() const { return m_y; }
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constexpr T z() const { return m_z; }
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constexpr T w() const { return m_w; }
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constexpr void set_x(T value) { m_x = value; }
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constexpr void set_y(T value) { m_y = value; }
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constexpr void set_z(T value) { m_z = value; }
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constexpr void set_w(T value) { m_w = value; }
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constexpr Vector4& operator+=(const Vector4& other)
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{
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m_x += other.m_x;
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m_y += other.m_y;
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m_z += other.m_z;
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m_w += other.m_w;
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return *this;
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}
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constexpr Vector4& operator-=(const Vector4& other)
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{
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m_x -= other.m_x;
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m_y -= other.m_y;
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m_z -= other.m_z;
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m_w -= other.m_w;
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return *this;
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}
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constexpr Vector4 operator+(const Vector4& other) const
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{
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return Vector4(m_x + other.m_x, m_y + other.m_y, m_z + other.m_z, m_w + other.m_w);
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}
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constexpr Vector4 operator-(const Vector4& other) const
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{
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return Vector4(m_x - other.m_x, m_y - other.m_y, m_z - other.m_z, m_w - other.m_w);
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}
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constexpr Vector4 operator-() const
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{
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return Vector4(-m_x, -m_y, -m_z, -m_w);
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}
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constexpr Vector4 operator*(const Vector4& other) const
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{
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return Vector4(m_x * other.m_x, m_y * other.m_y, m_z * other.m_z, m_w * other.m_w);
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}
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constexpr Vector4 operator/(const Vector4& other) const
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{
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return Vector4(m_x / other.m_x, m_y / other.m_y, m_z / other.m_z, m_w / other.m_w);
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}
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template<typename U>
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constexpr Vector4 operator*(U f) const
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{
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return Vector4(m_x * f, m_y * f, m_z * f, m_w * f);
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}
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template<typename U>
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constexpr Vector4 operator/(U f) const
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{
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return Vector4(m_x / f, m_y / f, m_z / f, m_w / f);
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}
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constexpr T dot(const Vector4& other) const
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{
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return m_x * other.m_x + m_y * other.m_y + m_z * other.m_z + m_w * other.m_w;
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}
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constexpr Vector4 normalized() const
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{
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T inv_length = 1 / length();
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return *this * inv_length;
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}
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constexpr Vector4 clamped(T m, T x) const
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{
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Vector4 copy { *this };
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copy.clamp(m, x);
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return copy;
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}
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constexpr void clamp(T min_value, T max_value)
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{
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m_x = max(min_value, m_x);
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m_y = max(min_value, m_y);
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m_z = max(min_value, m_z);
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m_w = max(min_value, m_w);
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m_x = min(max_value, m_x);
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m_y = min(max_value, m_y);
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m_z = min(max_value, m_z);
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m_w = min(max_value, m_w);
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}
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constexpr void normalize()
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{
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T inv_length = 1 / length();
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m_x *= inv_length;
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m_y *= inv_length;
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m_z *= inv_length;
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m_w *= inv_length;
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}
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constexpr T length() const
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{
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return AK::sqrt(m_x * m_x + m_y * m_y + m_z * m_z + m_w * m_w);
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}
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constexpr Vector3<T> xyz() const
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{
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return Vector3<T>(m_x, m_y, m_z);
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}
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String to_string() const
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{
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return String::formatted("[{},{},{},{}]", x(), y(), z(), w());
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}
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private:
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T m_x;
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T m_y;
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T m_z;
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T m_w;
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};
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typedef Vector4<float> FloatVector4;
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typedef Vector4<double> DoubleVector4;
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template<class T>
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using Vector4 = VectorN<4, T>;
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using FloatVector4 = Vector4<float>;
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using DoubleVector4 = Vector4<double>;
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}
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222
Userland/Libraries/LibGfx/VectorN.h
Normal file
222
Userland/Libraries/LibGfx/VectorN.h
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/*
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* Copyright (c) 2020, Stephan Unverwerth <s.unverwerth@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Array.h>
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#include <AK/Error.h>
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#include <AK/Format.h>
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#include <AK/Math.h>
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#include <AK/StdLibExtras.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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#define LOOP_UNROLL_N 4
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#define STRINGIFY_HELPER(x) #x
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#define STRINGIFY(x) STRINGIFY_HELPER(x)
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#ifdef __clang__
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# define UNROLL_LOOP _Pragma(STRINGIFY(unroll))
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#else
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# define UNROLL_LOOP _Pragma(STRINGIFY(GCC unroll(LOOP_UNROLL_N)))
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#endif
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namespace Gfx {
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template<size_t N, typename T>
|
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requires(N >= 2 && N <= 4) class VectorN final {
|
||||
static_assert(LOOP_UNROLL_N >= N, "Unroll the entire loop for performance.");
|
||||
|
||||
public:
|
||||
[[nodiscard]] constexpr VectorN() = default;
|
||||
[[nodiscard]] constexpr VectorN(T x, T y) requires(N == 2)
|
||||
: m_data { x, y }
|
||||
{
|
||||
}
|
||||
[[nodiscard]] constexpr VectorN(T x, T y, T z) requires(N == 3)
|
||||
: m_data { x, y, z }
|
||||
{
|
||||
}
|
||||
[[nodiscard]] constexpr VectorN(T x, T y, T z, T w) requires(N == 4)
|
||||
: m_data { x, y, z, w }
|
||||
{
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr T x() const { return m_data[0]; }
|
||||
[[nodiscard]] constexpr T y() const { return m_data[1]; }
|
||||
[[nodiscard]] constexpr T z() const requires(N >= 3) { return m_data[2]; }
|
||||
[[nodiscard]] constexpr T w() const requires(N >= 4) { return m_data[3]; }
|
||||
|
||||
constexpr void set_x(T value) { m_data[0] = value; }
|
||||
constexpr void set_y(T value) { m_data[1] = value; }
|
||||
constexpr void set_z(T value) requires(N >= 3) { m_data[2] = value; }
|
||||
constexpr void set_w(T value) requires(N >= 4) { m_data[3] = value; }
|
||||
|
||||
constexpr VectorN& operator+=(const VectorN& other)
|
||||
{
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
m_data[i] += other.m_data[i];
|
||||
return *this;
|
||||
}
|
||||
|
||||
constexpr VectorN& operator-=(const VectorN& other)
|
||||
{
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
m_data[i] -= other.m_data[i];
|
||||
return *this;
|
||||
}
|
||||
|
||||
constexpr VectorN& operator*=(const T& t)
|
||||
{
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
m_data[i] *= t;
|
||||
return *this;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN operator+(const VectorN& other) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] + other.m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN operator-(const VectorN& other) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] - other.m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN operator*(const VectorN& other) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] * other.m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN operator-() const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = -m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN operator/(const VectorN& other) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] / other.m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
template<typename U>
|
||||
[[nodiscard]] constexpr VectorN operator*(U f) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] * f;
|
||||
return result;
|
||||
}
|
||||
|
||||
template<typename U>
|
||||
[[nodiscard]] constexpr VectorN operator/(U f) const
|
||||
{
|
||||
VectorN result;
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result.m_data[i] = m_data[i] / f;
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr T dot(const VectorN& other) const
|
||||
{
|
||||
T result {};
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i)
|
||||
result += m_data[i] * other.m_data[i];
|
||||
return result;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN cross(const VectorN& other) const requires(N == 3)
|
||||
{
|
||||
return VectorN(
|
||||
y() * other.z() - z() * other.y(),
|
||||
z() * other.x() - x() * other.z(),
|
||||
x() * other.y() - y() * other.x());
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN normalized() const
|
||||
{
|
||||
VectorN copy { *this };
|
||||
copy.normalize();
|
||||
return copy;
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN clamped(T m, T x) const
|
||||
{
|
||||
VectorN copy { *this };
|
||||
copy.clamp(m, x);
|
||||
return copy;
|
||||
}
|
||||
|
||||
constexpr void clamp(T min_value, T max_value)
|
||||
{
|
||||
UNROLL_LOOP
|
||||
for (auto i = 0u; i < N; ++i) {
|
||||
m_data[i] = max(min_value, m_data[i]);
|
||||
m_data[i] = min(max_value, m_data[i]);
|
||||
}
|
||||
}
|
||||
|
||||
constexpr void normalize()
|
||||
{
|
||||
T const inv_length = 1 / length();
|
||||
operator*=(inv_length);
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr T length() const
|
||||
{
|
||||
if constexpr (N == 2)
|
||||
return AK::hypot(m_data[0] * m_data[0] + m_data[1] * m_data[1]);
|
||||
else if constexpr (N == 3)
|
||||
return AK::sqrt(m_data[0] * m_data[0] + m_data[1] * m_data[1] + m_data[2] * m_data[2]);
|
||||
else
|
||||
return AK::sqrt(m_data[0] * m_data[0] + m_data[1] * m_data[1] + m_data[2] * m_data[2] + m_data[3] * m_data[3]);
|
||||
}
|
||||
|
||||
[[nodiscard]] constexpr VectorN<3, T> xyz() const requires(N == 4)
|
||||
{
|
||||
return VectorN<3, T>(x(), y(), z());
|
||||
}
|
||||
|
||||
[[nodiscard]] String to_string() const
|
||||
{
|
||||
if constexpr (N == 2)
|
||||
return String::formatted("[{},{}]", x(), y());
|
||||
else if constexpr (N == 3)
|
||||
return String::formatted("[{},{},{}]", x(), y(), z());
|
||||
else
|
||||
return String::formatted("[{},{},{},{}]", x(), y(), z(), w());
|
||||
}
|
||||
|
||||
private:
|
||||
AK::Array<T, N> m_data;
|
||||
};
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue