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file_sys: Repurpose 3DS IVFC code for Switch ROMFS.

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This commit is contained in:
bunnei 2018-01-19 21:45:07 -05:00
parent 4c07dde472
commit 2f71a32363
3 changed files with 43 additions and 51 deletions
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4
src/core/CMakeLists.txt
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@ -13,10 +13,10 @@ add_library(core STATIC
file_sys/disk_archive.h
file_sys/errors.h
file_sys/file_backend.h
file_sys/ivfc_archive.cpp
file_sys/ivfc_archive.h
file_sys/path_parser.cpp
file_sys/path_parser.h
file_sys/romfs_archive.cpp
file_sys/romfs_archive.h
file_sys/savedata_archive.cpp
file_sys/savedata_archive.h
file_sys/title_metadata.cpp

65
src/core/file_sys/ivfc_archive.cpp → src/core/file_sys/romfs_archive.cpp
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@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -6,84 +6,79 @@
#include <memory>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "core/file_sys/ivfc_archive.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
#include "core/file_sys/romfs_archive.h"
namespace FileSys {
std::string IVFCArchive::GetName() const {
return "IVFC";
std::string ROMFSArchive::GetName() const {
return "RomFS";
}
ResultVal<std::unique_ptr<FileBackend>> IVFCArchive::OpenFile(const Path& path,
ResultVal<std::unique_ptr<FileBackend>> ROMFSArchive::OpenFile(const Path& path,
const Mode& mode) const {
return MakeResult<std::unique_ptr<FileBackend>>(
std::make_unique<IVFCFile>(romfs_file, data_offset, data_size));
std::make_unique<ROMFSFile>(romfs_file, data_offset, data_size));
}
ResultCode IVFCArchive::DeleteFile(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a file from an IVFC archive (%s).",
ResultCode ROMFSArchive::DeleteFile(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a file from an ROMFS archive (%s).",
GetName().c_str());
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive (%s).",
ResultCode ROMFSArchive::RenameFile(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::DeleteDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive (%s).",
ResultCode ROMFSArchive::DeleteDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::DeleteDirectoryRecursively(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an IVFC archive (%s).",
ResultCode ROMFSArchive::DeleteDirectoryRecursively(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to delete a directory from an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::CreateFile(const Path& path, u64 size) const {
LOG_CRITICAL(Service_FS, "Attempted to create a file in an IVFC archive (%s).",
ResultCode ROMFSArchive::CreateFile(const Path& path, u64 size) const {
LOG_CRITICAL(Service_FS, "Attempted to create a file in an ROMFS archive (%s).",
GetName().c_str());
// TODO(bunnei): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::CreateDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to create a directory in an IVFC archive (%s).",
ResultCode ROMFSArchive::CreateDirectory(const Path& path) const {
LOG_CRITICAL(Service_FS, "Attempted to create a directory in an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultCode IVFCArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an IVFC archive (%s).",
ResultCode ROMFSArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
LOG_CRITICAL(Service_FS, "Attempted to rename a file within an ROMFS archive (%s).",
GetName().c_str());
// TODO(wwylele): Use correct error code
return ResultCode(-1);
}
ResultVal<std::unique_ptr<DirectoryBackend>> IVFCArchive::OpenDirectory(const Path& path) const {
return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<IVFCDirectory>());
ResultVal<std::unique_ptr<DirectoryBackend>> ROMFSArchive::OpenDirectory(const Path& path) const {
return MakeResult<std::unique_ptr<DirectoryBackend>>(std::make_unique<ROMFSDirectory>());
}
u64 IVFCArchive::GetFreeBytes() const {
LOG_WARNING(Service_FS, "Attempted to get the free space in an IVFC archive");
u64 ROMFSArchive::GetFreeBytes() const {
LOG_WARNING(Service_FS, "Attempted to get the free space in an ROMFS archive");
return 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
ResultVal<size_t> IVFCFile::Read(const u64 offset, const size_t length, u8* buffer) const {
ResultVal<size_t> ROMFSFile::Read(const u64 offset, const size_t length, u8* buffer) const {
LOG_TRACE(Service_FS, "called offset=%llu, length=%zu", offset, length);
romfs_file->Seek(data_offset + offset, SEEK_SET);
size_t read_length = (size_t)std::min((u64)length, data_size - offset);
@ -91,19 +86,19 @@ ResultVal<size_t> IVFCFile::Read(const u64 offset, const size_t length, u8* buff
return MakeResult<size_t>(romfs_file->ReadBytes(buffer, read_length));
}
ResultVal<size_t> IVFCFile::Write(const u64 offset, const size_t length, const bool flush,
ResultVal<size_t> ROMFSFile::Write(const u64 offset, const size_t length, const bool flush,
const u8* buffer) const {
LOG_ERROR(Service_FS, "Attempted to write to IVFC file");
LOG_ERROR(Service_FS, "Attempted to write to ROMFS file");
// TODO(Subv): Find error code
return MakeResult<size_t>(0);
}
u64 IVFCFile::GetSize() const {
u64 ROMFSFile::GetSize() const {
return data_size;
}
bool IVFCFile::SetSize(const u64 size) const {
LOG_ERROR(Service_FS, "Attempted to set the size of an IVFC file");
bool ROMFSFile::SetSize(const u64 size) const {
LOG_ERROR(Service_FS, "Attempted to set the size of an ROMFS file");
return false;
}

21
src/core/file_sys/ivfc_archive.h → src/core/file_sys/romfs_archive.h
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@ -1,4 +1,4 @@
// Copyright 2014 Citra Emulator Project
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
@ -15,19 +15,16 @@
#include "core/file_sys/file_backend.h"
#include "core/hle/result.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// FileSys namespace
namespace FileSys {
/**
* Helper which implements an interface to deal with IVFC images used in some archives
* This should be subclassed by concrete archive types, which will provide the
* input data (load the raw IVFC archive) and override any required methods
* Helper which implements an interface to deal with Switch .istorage ROMFS images used in some
* archives This should be subclassed by concrete archive types, which will provide the input data
* (load the raw ROMFS archive) and override any required methods
*/
class IVFCArchive : public ArchiveBackend {
class ROMFSArchive : public ArchiveBackend {
public:
IVFCArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
ROMFSArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
: romfs_file(file), data_offset(offset), data_size(size) {}
std::string GetName() const override;
@ -50,9 +47,9 @@ protected:
u64 data_size;
};
class IVFCFile : public FileBackend {
class ROMFSFile : public FileBackend {
public:
IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
ROMFSFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
: romfs_file(file), data_offset(offset), data_size(size) {}
ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
@ -70,7 +67,7 @@ private:
u64 data_size;
};
class IVFCDirectory : public DirectoryBackend {
class ROMFSDirectory : public DirectoryBackend {
public:
u32 Read(const u32 count, Entry* entries) override {
return 0;