8fc9c03126
This allows frontends to keep a single loader and use it multiple times e.g. for code loading and SMDH parsing.
141 lines
3.7 KiB
C++
141 lines
3.7 KiB
C++
// Copyright 2014 Citra Emulator Project
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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 <memory>
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#include <string>
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#include "common/logging/log.h"
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#include "common/string_util.h"
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#include "core/hle/kernel/process.h"
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#include "core/loader/3dsx.h"
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#include "core/loader/elf.h"
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#include "core/loader/ncch.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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namespace Loader {
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const std::initializer_list<Kernel::AddressMapping> default_address_mappings = {
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{ 0x1FF50000, 0x8000, true }, // part of DSP RAM
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{ 0x1FF70000, 0x8000, true }, // part of DSP RAM
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{ 0x1F000000, 0x600000, false }, // entire VRAM
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};
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FileType IdentifyFile(FileUtil::IOFile& file) {
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FileType type;
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#define CHECK_TYPE(loader) \
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type = AppLoader_##loader::IdentifyType(file); \
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if (FileType::Error != type) \
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return type;
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CHECK_TYPE(THREEDSX)
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CHECK_TYPE(ELF)
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CHECK_TYPE(NCCH)
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#undef CHECK_TYPE
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return FileType::Unknown;
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}
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FileType IdentifyFile(const std::string& file_name) {
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FileUtil::IOFile file(file_name, "rb");
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if (!file.IsOpen()) {
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LOG_ERROR(Loader, "Failed to load file %s", file_name.c_str());
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return FileType::Unknown;
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}
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return IdentifyFile(file);
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}
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FileType GuessFromExtension(const std::string& extension_) {
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std::string extension = Common::ToLower(extension_);
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if (extension == ".elf" || extension == ".axf")
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return FileType::ELF;
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if (extension == ".cci" || extension == ".3ds")
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return FileType::CCI;
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if (extension == ".cxi")
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return FileType::CXI;
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if (extension == ".3dsx")
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return FileType::THREEDSX;
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if (extension == ".cia")
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return FileType::CIA;
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return FileType::Unknown;
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}
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const char* GetFileTypeString(FileType type) {
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switch (type) {
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case FileType::CCI:
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return "NCSD";
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case FileType::CXI:
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return "NCCH";
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case FileType::CIA:
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return "CIA";
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case FileType::ELF:
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return "ELF";
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case FileType::THREEDSX:
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return "3DSX";
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case FileType::Error:
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case FileType::Unknown:
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break;
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}
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return "unknown";
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}
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std::unique_ptr<AppLoader> GetLoader(FileUtil::IOFile&& file, FileType type,
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const std::string& filename, const std::string& filepath) {
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switch (type) {
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// 3DSX file format.
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case FileType::THREEDSX:
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return std::make_unique<AppLoader_THREEDSX>(std::move(file), filename, filepath);
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// Standard ELF file format.
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case FileType::ELF:
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return std::make_unique<AppLoader_ELF>(std::move(file), filename);
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// NCCH/NCSD container formats.
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case FileType::CXI:
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case FileType::CCI:
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return std::make_unique<AppLoader_NCCH>(std::move(file), filepath);
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default:
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return nullptr;
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}
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}
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std::unique_ptr<AppLoader> GetFileLoader(const std::string& filename) {
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FileUtil::IOFile file(filename, "rb");
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if (!file.IsOpen()) {
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LOG_ERROR(Loader, "Failed to load file %s", filename.c_str());
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return nullptr;
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}
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std::string filename_filename, filename_extension;
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Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
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FileType type = IdentifyFile(file);
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FileType filename_type = GuessFromExtension(filename_extension);
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if (type != filename_type) {
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LOG_WARNING(Loader, "File %s has a different type than its extension.", filename.c_str());
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if (FileType::Unknown == type)
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type = filename_type;
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}
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LOG_INFO(Loader, "Loading file %s as %s...", filename.c_str(), GetFileTypeString(type));
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return GetLoader(std::move(file), type, filename_filename, filename);
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}
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} // namespace Loader
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