mirror of
https://github.com/citra-emu/citra.git
synced 2024-11-26 18:20:05 +00:00
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include "common/logging/log.h"
|
|
#include "common/string_util.h"
|
|
#include "core/hle/kernel/process.h"
|
|
#include "core/loader/3dsx.h"
|
|
#include "core/loader/elf.h"
|
|
#include "core/loader/ncch.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace Loader {
|
|
|
|
FileType IdentifyFile(FileUtil::IOFile& file) {
|
|
FileType type;
|
|
|
|
#define CHECK_TYPE(loader) \
|
|
type = AppLoader_##loader::IdentifyType(file); \
|
|
if (FileType::Error != type) \
|
|
return type;
|
|
|
|
CHECK_TYPE(THREEDSX)
|
|
CHECK_TYPE(ELF)
|
|
CHECK_TYPE(NCCH)
|
|
|
|
#undef CHECK_TYPE
|
|
|
|
return FileType::Unknown;
|
|
}
|
|
|
|
FileType IdentifyFile(const std::string& file_name) {
|
|
FileUtil::IOFile file(file_name, "rb");
|
|
if (!file.IsOpen()) {
|
|
LOG_ERROR(Loader, "Failed to load file {}", file_name);
|
|
return FileType::Unknown;
|
|
}
|
|
|
|
return IdentifyFile(file);
|
|
}
|
|
|
|
FileType GuessFromExtension(const std::string& extension_) {
|
|
std::string extension = Common::ToLower(extension_);
|
|
|
|
if (extension == ".elf" || extension == ".axf")
|
|
return FileType::ELF;
|
|
|
|
if (extension == ".cci" || extension == ".3ds")
|
|
return FileType::CCI;
|
|
|
|
if (extension == ".cxi" || extension == ".app")
|
|
return FileType::CXI;
|
|
|
|
if (extension == ".3dsx")
|
|
return FileType::THREEDSX;
|
|
|
|
if (extension == ".cia")
|
|
return FileType::CIA;
|
|
|
|
return FileType::Unknown;
|
|
}
|
|
|
|
const char* GetFileTypeString(FileType type) {
|
|
switch (type) {
|
|
case FileType::CCI:
|
|
return "NCSD";
|
|
case FileType::CXI:
|
|
return "NCCH";
|
|
case FileType::CIA:
|
|
return "CIA";
|
|
case FileType::ELF:
|
|
return "ELF";
|
|
case FileType::THREEDSX:
|
|
return "3DSX";
|
|
case FileType::Error:
|
|
case FileType::Unknown:
|
|
break;
|
|
}
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
/**
|
|
* Get a loader for a file with a specific type
|
|
* @param file The file to load
|
|
* @param type The type of the file
|
|
* @param filename the file name (without path)
|
|
* @param filepath the file full path (with name)
|
|
* @return std::unique_ptr<AppLoader> a pointer to a loader object; nullptr for unsupported type
|
|
*/
|
|
static std::unique_ptr<AppLoader> GetFileLoader(FileUtil::IOFile&& file, FileType type,
|
|
const std::string& filename,
|
|
const std::string& filepath) {
|
|
switch (type) {
|
|
|
|
// 3DSX file format.
|
|
case FileType::THREEDSX:
|
|
return std::make_unique<AppLoader_THREEDSX>(std::move(file), filename, filepath);
|
|
|
|
// Standard ELF file format.
|
|
case FileType::ELF:
|
|
return std::make_unique<AppLoader_ELF>(std::move(file), filename);
|
|
|
|
// NCCH/NCSD container formats.
|
|
case FileType::CXI:
|
|
case FileType::CCI:
|
|
return std::make_unique<AppLoader_NCCH>(std::move(file), filepath);
|
|
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<AppLoader> GetLoader(const std::string& filename) {
|
|
FileUtil::IOFile file(filename, "rb");
|
|
if (!file.IsOpen()) {
|
|
LOG_ERROR(Loader, "Failed to load file {}", filename);
|
|
return nullptr;
|
|
}
|
|
|
|
std::string filename_filename, filename_extension;
|
|
Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
|
|
|
|
FileType type = IdentifyFile(file);
|
|
FileType filename_type = GuessFromExtension(filename_extension);
|
|
|
|
if (type != filename_type) {
|
|
LOG_WARNING(Loader, "File {} has a different type than its extension.", filename);
|
|
if (FileType::Unknown == type)
|
|
type = filename_type;
|
|
}
|
|
|
|
LOG_DEBUG(Loader, "Loading file {} as {}...", filename, GetFileTypeString(type));
|
|
|
|
return GetFileLoader(std::move(file), type, filename_filename, filename);
|
|
}
|
|
|
|
} // namespace Loader
|