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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "core/file_sys/fssystem/fssystem_bucket_tree.h"
namespace FileSys::impl {
class SafeValue {
public:
static s64 GetInt64(const void* ptr) {
s64 value;
std::memcpy(std::addressof(value), ptr, sizeof(s64));
return value;
}
static s64 GetInt64(const s64* ptr) {
return GetInt64(static_cast<const void*>(ptr));
}
static s64 GetInt64(const s64& v) {
return GetInt64(std::addressof(v));
}
static void SetInt64(void* dst, const void* src) {
std::memcpy(dst, src, sizeof(s64));
}
static void SetInt64(void* dst, const s64* src) {
return SetInt64(dst, static_cast<const void*>(src));
}
static void SetInt64(void* dst, const s64& v) {
return SetInt64(dst, std::addressof(v));
}
};
template <typename IteratorType>
struct BucketTreeNode {
using Header = BucketTree::NodeHeader;
Header header;
s32 GetCount() const {
return this->header.count;
}
void* GetArray() {
return std::addressof(this->header) + 1;
}
template <typename T>
T* GetArray() {
return reinterpret_cast<T*>(this->GetArray());
}
const void* GetArray() const {
return std::addressof(this->header) + 1;
}
template <typename T>
const T* GetArray() const {
return reinterpret_cast<const T*>(this->GetArray());
}
s64 GetBeginOffset() const {
return *this->GetArray<s64>();
}
s64 GetEndOffset() const {
return this->header.offset;
}
IteratorType GetBegin() {
return IteratorType(this->GetArray<s64>());
}
IteratorType GetEnd() {
return IteratorType(this->GetArray<s64>()) + this->header.count;
}
IteratorType GetBegin() const {
return IteratorType(this->GetArray<s64>());
}
IteratorType GetEnd() const {
return IteratorType(this->GetArray<s64>()) + this->header.count;
}
IteratorType GetBegin(size_t entry_size) {
return IteratorType(this->GetArray(), entry_size);
}
IteratorType GetEnd(size_t entry_size) {
return IteratorType(this->GetArray(), entry_size) + this->header.count;
}
IteratorType GetBegin(size_t entry_size) const {
return IteratorType(this->GetArray(), entry_size);
}
IteratorType GetEnd(size_t entry_size) const {
return IteratorType(this->GetArray(), entry_size) + this->header.count;
}
};
constexpr inline s64 GetBucketTreeEntryOffset(s64 entry_set_offset, size_t entry_size,
s32 entry_index) {
return entry_set_offset + sizeof(BucketTree::NodeHeader) +
entry_index * static_cast<s64>(entry_size);
}
constexpr inline s64 GetBucketTreeEntryOffset(s32 entry_set_index, size_t node_size,
size_t entry_size, s32 entry_index) {
return GetBucketTreeEntryOffset(entry_set_index * static_cast<s64>(node_size), entry_size,
entry_index);
}
} // namespace FileSys::impl
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