yuzu/src/core/loader/nca.cpp
Zach Hilman a6e75cd45b bktr: Implement IVFC offset shifting
Fixes base game read errors
2018-09-04 16:24:02 -04:00

88 lines
2.6 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <utility>
#include "common/file_util.h"
#include "common/logging/log.h"
#include "core/file_sys/content_archive.h"
#include "core/file_sys/romfs_factory.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/deconstructed_rom_directory.h"
#include "core/loader/nca.h"
namespace Loader {
AppLoader_NCA::AppLoader_NCA(FileSys::VirtualFile file_)
: AppLoader(std::move(file_)), nca(std::make_unique<FileSys::NCA>(file)) {}
AppLoader_NCA::~AppLoader_NCA() = default;
FileType AppLoader_NCA::IdentifyType(const FileSys::VirtualFile& file) {
FileSys::NCA nca(file);
if (nca.GetStatus() == ResultStatus::Success &&
nca.GetType() == FileSys::NCAContentType::Program)
return FileType::NCA;
return FileType::Error;
}
ResultStatus AppLoader_NCA::Load(Kernel::SharedPtr<Kernel::Process>& process) {
if (is_loaded) {
return ResultStatus::ErrorAlreadyLoaded;
}
const auto result = nca->GetStatus();
if (result != ResultStatus::Success) {
return result;
}
if (nca->GetType() != FileSys::NCAContentType::Program)
return ResultStatus::ErrorNCANotProgram;
const auto exefs = nca->GetExeFS();
if (exefs == nullptr)
return ResultStatus::ErrorNoExeFS;
directory_loader = std::make_unique<AppLoader_DeconstructedRomDirectory>(exefs, true);
const auto load_result = directory_loader->Load(process);
if (load_result != ResultStatus::Success)
return load_result;
if (nca->GetRomFS() != nullptr && nca->GetRomFS()->GetSize() > 0)
Service::FileSystem::RegisterRomFS(std::make_unique<FileSys::RomFSFactory>(*this));
is_loaded = true;
return ResultStatus::Success;
}
ResultStatus AppLoader_NCA::ReadRomFS(FileSys::VirtualFile& dir) {
if (nca == nullptr)
return ResultStatus::ErrorNotInitialized;
if (nca->GetRomFS() == nullptr || nca->GetRomFS()->GetSize() == 0)
return ResultStatus::ErrorNoRomFS;
dir = nca->GetRomFS();
return ResultStatus::Success;
}
u64 AppLoader_NCA::ReadRomFSIVFCOffset() const {
if (nca == nullptr)
return 0;
return nca->GetBaseIVFCOffset();
}
ResultStatus AppLoader_NCA::ReadProgramId(u64& out_program_id) {
if (nca == nullptr || nca->GetStatus() != ResultStatus::Success)
return ResultStatus::ErrorNotInitialized;
out_program_id = nca->GetTitleId();
return ResultStatus::Success;
}
} // namespace Loader