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vfs: expand support for NCA reading

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This commit is contained in:
Liam 2023-08-10 21:34:43 -04:00
parent a8c4f01f6c
commit 86f6b6b7b2
75 changed files with 8055 additions and 1043 deletions
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29
src/common/alignment.h
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@ -3,6 +3,7 @@
#pragma once
#include <bit>
#include <cstddef>
#include <new>
#include <type_traits>
@ -10,7 +11,7 @@
namespace Common {
template <typename T>
requires std::is_unsigned_v<T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr T AlignUp(T value, size_t size) {
auto mod{static_cast<T>(value % size)};
value -= mod;
@ -24,7 +25,7 @@ template <typename T>
}
template <typename T>
requires std::is_unsigned_v<T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr T AlignDown(T value, size_t size) {
return static_cast<T>(value - value % size);
}
@ -55,6 +56,30 @@ template <typename T, typename U>
return (x + (y - 1)) / y;
}
template <typename T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr T LeastSignificantOneBit(T x) {
return x & ~(x - 1);
}
template <typename T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr T ResetLeastSignificantOneBit(T x) {
return x & (x - 1);
}
template <typename T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr bool IsPowerOfTwo(T x) {
return x > 0 && ResetLeastSignificantOneBit(x) == 0;
}
template <typename T>
requires std::is_integral_v<T>
[[nodiscard]] constexpr T FloorPowerOfTwo(T x) {
return T{1} << (sizeof(T) * 8 - std::countl_zero(x) - 1);
}
template <typename T, size_t Align = 16>
class AlignmentAllocator {
public: