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// Copyright 2021 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <optional>
#include <span>
#include <string>
#include <string_view>
#include <vector>
#include "DiscIO/DirectoryBlob.h"
#include "DiscIO/RiivolutionParser.h"
namespace Core
{
class CPUThreadGuard;
}
namespace DiscIO::Riivolution
{
struct SavegameRedirect
{
std::string m_target_path;
bool m_clone;
};
class FileDataLoader
{
public:
struct Node
{
std::string m_filename;
bool m_is_directory;
};
virtual ~FileDataLoader();
virtual std::optional<u64> GetExternalFileSize(std::string_view external_relative_path) = 0;
virtual std::vector<u8> GetFileContents(std::string_view external_relative_path) = 0;
virtual std::vector<Node> GetFolderContents(std::string_view external_relative_path) = 0;
virtual BuilderContentSource MakeContentSource(std::string_view external_relative_path,
u64 external_offset, u64 external_size,
u64 disc_offset) = 0;
virtual std::optional<std::string>
ResolveSavegameRedirectPath(std::string_view external_relative_path) = 0;
};
class FileDataLoaderHostFS final : public FileDataLoader
{
public:
// sd_root should be an absolute path to the folder representing our virtual SD card
// xml_path should be an absolute path to the parsed XML file
// patch_root should be the 'root' attribute given in the 'patch' or 'wiiroot' XML element
FileDataLoaderHostFS(std::string sd_root, const std::string& xml_path,
std::string_view patch_root);
std::optional<u64> GetExternalFileSize(std::string_view external_relative_path) override;
std::vector<u8> GetFileContents(std::string_view external_relative_path) override;
std::vector<FileDataLoader::Node>
GetFolderContents(std::string_view external_relative_path) override;
BuilderContentSource MakeContentSource(std::string_view external_relative_path,
u64 external_offset, u64 external_size,
u64 disc_offset) override;
std::optional<std::string>
ResolveSavegameRedirectPath(std::string_view external_relative_path) override;
private:
std::optional<std::string>
MakeAbsoluteFromRelative(std::string_view external_relative_path) const;
std::string m_sd_root;
std::string m_patch_root;
};
enum class PatchIndex
{
FileSystem,
DolphinSysFiles,
};
void ApplyPatchesToFiles(std::span<const Patch> patches, PatchIndex index,
std::vector<FSTBuilderNode>* fst, FSTBuilderNode* dol_node);
void ApplyGeneralMemoryPatches(const Core::CPUThreadGuard& guard, std::span<const Patch> patches);
void ApplyApploaderMemoryPatches(const Core::CPUThreadGuard& guard, std::span<const Patch> patches,
u32 ram_address, u32 ram_length);
std::optional<SavegameRedirect> ExtractSavegameRedirect(std::span<const Patch> riivolution_patches);
} // namespace DiscIO::Riivolution
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