45195a51a7
An instance of the NAX apploader already has an existing NAX instance in memory. Calling directly into IdentifyType() directly would re-parse the whole file again into yet another NAX instance, only to toss it away again. This gets rid of unnecessary/redundant file parsing and allocations.
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/logging/log.h"
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#include "core/file_sys/content_archive.h"
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#include "core/file_sys/romfs.h"
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#include "core/file_sys/xts_archive.h"
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#include "core/hle/kernel/process.h"
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#include "core/loader/nax.h"
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#include "core/loader/nca.h"
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namespace Loader {
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namespace {
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FileType IdentifyTypeImpl(const FileSys::NAX& nax) {
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if (nax.GetStatus() != ResultStatus::Success) {
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return FileType::Error;
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}
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const auto nca = nax.AsNCA();
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if (nca == nullptr || nca->GetStatus() != ResultStatus::Success) {
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return FileType::Error;
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}
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return FileType::NAX;
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}
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} // Anonymous namespace
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AppLoader_NAX::AppLoader_NAX(FileSys::VirtualFile file)
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: AppLoader(file), nax(std::make_unique<FileSys::NAX>(file)),
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nca_loader(std::make_unique<AppLoader_NCA>(nax->GetDecrypted())) {}
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AppLoader_NAX::~AppLoader_NAX() = default;
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FileType AppLoader_NAX::IdentifyType(const FileSys::VirtualFile& file) {
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const FileSys::NAX nax(file);
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return IdentifyTypeImpl(nax);
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}
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FileType AppLoader_NAX::GetFileType() {
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return IdentifyTypeImpl(*nax);
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}
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ResultStatus AppLoader_NAX::Load(Kernel::SharedPtr<Kernel::Process>& process) {
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if (is_loaded) {
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return ResultStatus::ErrorAlreadyLoaded;
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}
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if (nax->GetStatus() != ResultStatus::Success)
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return nax->GetStatus();
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const auto nca = nax->AsNCA();
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if (nca == nullptr) {
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if (!Core::Crypto::KeyManager::KeyFileExists(false))
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return ResultStatus::ErrorMissingProductionKeyFile;
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return ResultStatus::ErrorNAXInconvertibleToNCA;
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}
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if (nca->GetStatus() != ResultStatus::Success)
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return nca->GetStatus();
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const auto result = nca_loader->Load(process);
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if (result != ResultStatus::Success)
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return result;
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is_loaded = true;
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return ResultStatus::Success;
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}
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ResultStatus AppLoader_NAX::ReadRomFS(FileSys::VirtualFile& dir) {
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return nca_loader->ReadRomFS(dir);
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}
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ResultStatus AppLoader_NAX::ReadProgramId(u64& out_program_id) {
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return nca_loader->ReadProgramId(out_program_id);
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}
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} // namespace Loader
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