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// Copyright 2008 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <memory>
#include <string>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/DirectIOFile.h"
#include "DiscIO/Blob.h"
namespace DiscIO
{
static constexpr u32 WBFS_MAGIC = 0x53464257; // "WBFS" (byteswapped to little endian)
class WbfsFileReader final : public BlobReader
{
public:
~WbfsFileReader() override;
static std::unique_ptr<WbfsFileReader> Create(File::DirectIOFile file, const std::string& path);
BlobType GetBlobType() const override { return BlobType::WBFS; }
std::unique_ptr<BlobReader> CopyReader() const override;
u64 GetRawSize() const override { return m_size; }
u64 GetDataSize() const override;
DataSizeType GetDataSizeType() const override { return DataSizeType::UpperBound; }
u64 GetBlockSize() const override { return m_wbfs_sector_size; }
bool HasFastRandomAccessInBlock() const override { return true; }
std::string GetCompressionMethod() const override { return {}; }
std::optional<int> GetCompressionLevel() const override { return std::nullopt; }
bool Read(u64 offset, u64 nbytes, u8* out_ptr) override;
private:
WbfsFileReader(File::DirectIOFile file, const std::string& path = "");
void OpenAdditionalFiles(const std::string& path);
bool AddFileToList(File::DirectIOFile file);
bool ReadHeader();
File::DirectIOFile& SeekToCluster(u64 offset, u64* available);
bool IsGood() const { return m_good; }
struct FileEntry
{
FileEntry(File::DirectIOFile file_, u64 base_address_, u64 size_)
: file(std::move(file_)), base_address(base_address_), size(size_)
{
}
File::DirectIOFile file;
u64 base_address;
u64 size;
};
std::vector<FileEntry> m_files;
u64 m_size;
u64 m_hd_sector_size;
u64 m_wbfs_sector_size;
u64 m_wbfs_sector_count;
u64 m_disc_info_size;
#pragma pack(1)
struct WbfsHeader
{
u32 magic;
u32 hd_sector_count;
u8 hd_sector_shift;
u8 wbfs_sector_shift;
u8 padding[2];
u8 disc_table[500];
} m_header;
#pragma pack()
std::vector<u16> m_wlba_table;
u64 m_blocks_per_disc;
bool m_good;
};
} // namespace DiscIO
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