shadPS4/src/common/alignment.h

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// SPDX-FileCopyrightText: 2014 Jannik Vogel <email@jannikvogel.de>
// SPDX-License-Identifier: CC0-1.0
#pragma once
#include <cstddef>
#include <type_traits>
namespace Common {
template <typename T>
[[nodiscard]] constexpr T alignUp(T value, std::size_t size) {
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
auto mod{static_cast<T>(value % size)};
value -= mod;
return static_cast<T>(mod == T{0} ? value : value + size);
}
template <typename T>
[[nodiscard]] constexpr T alignDown(T value, std::size_t size) {
static_assert(std::is_unsigned_v<T>, "T must be an unsigned value.");
return static_cast<T>(value - value % size);
}
template <typename T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr bool is16KBAligned(T value) {
return (value & 0x3FFF) == 0;
}
} // namespace Common