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