shadPS4/src/common/enum.h

162 lines
7.1 KiB
C++

// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <type_traits>
#include "common/types.h"
#define DECLARE_ENUM_FLAG_OPERATORS(type) \
[[nodiscard]] constexpr type operator|(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
} \
[[nodiscard]] constexpr type operator&(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
} \
[[nodiscard]] constexpr type operator^(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) ^ static_cast<T>(b)); \
} \
[[nodiscard]] constexpr type operator<<(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) << static_cast<T>(b)); \
} \
[[nodiscard]] constexpr type operator>>(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) >> static_cast<T>(b)); \
} \
constexpr type& operator|=(type& a, type b) noexcept { \
a = a | b; \
return a; \
} \
constexpr type& operator&=(type& a, type b) noexcept { \
a = a & b; \
return a; \
} \
constexpr type& operator^=(type& a, type b) noexcept { \
a = a ^ b; \
return a; \
} \
constexpr type& operator<<=(type& a, type b) noexcept { \
a = a << b; \
return a; \
} \
constexpr type& operator>>=(type& a, type b) noexcept { \
a = a >> b; \
return a; \
} \
[[nodiscard]] constexpr type operator~(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(~static_cast<T>(key)); \
} \
[[nodiscard]] constexpr bool True(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) != 0; \
} \
[[nodiscard]] constexpr bool False(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) == 0; \
}
namespace Common {
template <typename T>
class Flags {
public:
using IntType = std::underlying_type_t<T>;
Flags() {}
Flags(IntType t) : m_bits(t) {}
template <typename... Tx>
Flags(T f, Tx... fx) {
this->set(f, fx...);
}
template <typename... Tx>
void set(Tx... fx) {
m_bits |= bits(fx...);
}
void set(Flags flags) {
m_bits |= flags.m_bits;
}
template <typename... Tx>
void clr(Tx... fx) {
m_bits &= ~bits(fx...);
}
void clr(Flags flags) {
m_bits &= ~flags.m_bits;
}
template <typename... Tx>
bool any(Tx... fx) const {
return (m_bits & bits(fx...)) != 0;
}
template <typename... Tx>
bool all(Tx... fx) const {
const IntType mask = bits(fx...);
return (m_bits & mask) == mask;
}
bool test(T f) const {
return this->any(f);
}
bool isClear() const {
return m_bits == 0;
}
void clrAll() {
m_bits = 0;
}
u32 raw() const {
return m_bits;
}
Flags operator&(const Flags& other) const {
return Flags(m_bits & other.m_bits);
}
Flags operator|(const Flags& other) const {
return Flags(m_bits | other.m_bits);
}
Flags operator^(const Flags& other) const {
return Flags(m_bits ^ other.m_bits);
}
bool operator==(const Flags& other) const {
return m_bits == other.m_bits;
}
bool operator!=(const Flags& other) const {
return m_bits != other.m_bits;
}
private:
IntType m_bits = 0;
static IntType bit(T f) {
return IntType(1) << static_cast<IntType>(f);
}
template <typename... Tx>
static IntType bits(T f, Tx... fx) {
return bit(f) | bits(fx...);
}
static IntType bits() {
return 0;
}
};
} // namespace Common