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yuzu/src/yuzu_cmd/yuzu.cpp
Lioncash bcaadac22c core: Make use of [[nodiscard]] with the System class 
Given this is a central class, we should flag cases where the return
value of some functions not being used is likely a bug.
2020-11-18 02:06:44 -05:00

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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <chrono>
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include <fmt/ostream.h>
#include "common/common_paths.h"
#include "common/detached_tasks.h"
#include "common/file_util.h"
#include "common/logging/backend.h"
#include "common/logging/filter.h"
#include "common/logging/log.h"
#include "common/microprofile.h"
#include "common/scm_rev.h"
#include "common/scope_exit.h"
#include "common/string_util.h"
#include "common/telemetry.h"
#include "core/core.h"
#include "core/crypto/key_manager.h"
#include "core/file_sys/registered_cache.h"
#include "core/file_sys/vfs_real.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/loader.h"
#include "core/settings.h"
#include "core/telemetry_session.h"
#include "input_common/main.h"
#include "video_core/renderer_base.h"
#include "yuzu_cmd/config.h"
#include "yuzu_cmd/emu_window/emu_window_sdl2.h"
#include "yuzu_cmd/emu_window/emu_window_sdl2_gl.h"
#ifdef HAS_VULKAN
#include "yuzu_cmd/emu_window/emu_window_sdl2_vk.h"
#endif
#ifdef _WIN32
// windows.h needs to be included before shellapi.h
#include <windows.h>
#include <shellapi.h>
#endif
#undef _UNICODE
#include <getopt.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#ifdef _WIN32
extern "C" {
// tells Nvidia and AMD drivers to use the dedicated GPU by default on laptops with switchable
// graphics
__declspec(dllexport) unsigned long NvOptimusEnablement = 0x00000001;
__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}
#endif
static void PrintHelp(const char* argv0) {
std::cout << "Usage: " << argv0
<< " [options] <filename>\n"
"-g, --gdbport=NUMBER Enable gdb stub on port NUMBER\n"
"-f, --fullscreen Start in fullscreen mode\n"
"-h, --help Display this help and exit\n"
"-v, --version Output version information and exit\n"
"-p, --program Pass following string as arguments to executable\n";
}
static void PrintVersion() {
std::cout << "yuzu " << Common::g_scm_branch << " " << Common::g_scm_desc << std::endl;
}
static void InitializeLogging() {
Log::Filter log_filter(Log::Level::Debug);
log_filter.ParseFilterString(Settings::values.log_filter);
Log::SetGlobalFilter(log_filter);
Log::AddBackend(std::make_unique<Log::ColorConsoleBackend>());
const std::string& log_dir = Common::FS::GetUserPath(Common::FS::UserPath::LogDir);
Common::FS::CreateFullPath(log_dir);
Log::AddBackend(std::make_unique<Log::FileBackend>(log_dir + LOG_FILE));
#ifdef _WIN32
Log::AddBackend(std::make_unique<Log::DebuggerBackend>());
#endif
}
/// Application entry point
int main(int argc, char** argv) {
Common::DetachedTasks detached_tasks;
Config config;
int option_index = 0;
bool use_gdbstub = Settings::values.use_gdbstub;
u32 gdb_port = static_cast<u32>(Settings::values.gdbstub_port);
InitializeLogging();
char* endarg;
#ifdef _WIN32
int argc_w;
auto argv_w = CommandLineToArgvW(GetCommandLineW(), &argc_w);
if (argv_w == nullptr) {
LOG_CRITICAL(Frontend, "Failed to get command line arguments");
return -1;
}
#endif
std::string filepath;
bool fullscreen = false;
static struct option long_options[] = {
{"gdbport", required_argument, 0, 'g'}, {"fullscreen", no_argument, 0, 'f'},
{"help", no_argument, 0, 'h'}, {"version", no_argument, 0, 'v'},
{"program", optional_argument, 0, 'p'}, {0, 0, 0, 0},
};
while (optind < argc) {
int arg = getopt_long(argc, argv, "g:fhvp::", long_options, &option_index);
if (arg != -1) {
switch (static_cast<char>(arg)) {
case 'g':
errno = 0;
gdb_port = strtoul(optarg, &endarg, 0);
use_gdbstub = true;
if (endarg == optarg)
errno = EINVAL;
if (errno != 0) {
perror("--gdbport");
exit(1);
}
break;
case 'f':
fullscreen = true;
LOG_INFO(Frontend, "Starting in fullscreen mode...");
break;
case 'h':
PrintHelp(argv[0]);
return 0;
case 'v':
PrintVersion();
return 0;
case 'p':
Settings::values.program_args = argv[optind];
++optind;
break;
}
} else {
#ifdef _WIN32
filepath = Common::UTF16ToUTF8(argv_w[optind]);
#else
filepath = argv[optind];
#endif
optind++;
}
}
#ifdef _WIN32
LocalFree(argv_w);
#endif
MicroProfileOnThreadCreate("EmuThread");
SCOPE_EXIT({ MicroProfileShutdown(); });
if (filepath.empty()) {
LOG_CRITICAL(Frontend, "Failed to load ROM: No ROM specified");
return -1;
}
// Apply the command line arguments
Settings::values.gdbstub_port = gdb_port;
Settings::values.use_gdbstub = use_gdbstub;
Settings::Apply();
Core::System& system{Core::System::GetInstance()};
InputCommon::InputSubsystem input_subsystem;
std::unique_ptr<EmuWindow_SDL2> emu_window;
switch (Settings::values.renderer_backend.GetValue()) {
case Settings::RendererBackend::OpenGL:
emu_window = std::make_unique<EmuWindow_SDL2_GL>(&input_subsystem, fullscreen);
break;
case Settings::RendererBackend::Vulkan:
#ifdef HAS_VULKAN
emu_window = std::make_unique<EmuWindow_SDL2_VK>(&input_subsystem);
break;
#else
LOG_CRITICAL(Frontend, "Vulkan backend has not been compiled!");
return 1;
#endif
}
system.SetContentProvider(std::make_unique<FileSys::ContentProviderUnion>());
system.SetFilesystem(std::make_shared<FileSys::RealVfsFilesystem>());
system.GetFileSystemController().CreateFactories(*system.GetFilesystem());
const Core::System::ResultStatus load_result{system.Load(*emu_window, filepath)};
switch (load_result) {
case Core::System::ResultStatus::ErrorGetLoader:
LOG_CRITICAL(Frontend, "Failed to obtain loader for {}!", filepath);
return -1;
case Core::System::ResultStatus::ErrorLoader:
LOG_CRITICAL(Frontend, "Failed to load ROM!");
return -1;
case Core::System::ResultStatus::ErrorNotInitialized:
LOG_CRITICAL(Frontend, "CPUCore not initialized");
return -1;
case Core::System::ResultStatus::ErrorVideoCore:
LOG_CRITICAL(Frontend, "Failed to initialize VideoCore!");
return -1;
case Core::System::ResultStatus::Success:
break; // Expected case
default:
if (static_cast<u32>(load_result) >
static_cast<u32>(Core::System::ResultStatus::ErrorLoader)) {
const u16 loader_id = static_cast<u16>(Core::System::ResultStatus::ErrorLoader);
const u16 error_id = static_cast<u16>(load_result) - loader_id;
LOG_CRITICAL(Frontend,
"While attempting to load the ROM requested, an error occured. Please "
"refer to the yuzu wiki for more information or the yuzu discord for "
"additional help.\n\nError Code: {:04X}-{:04X}\nError Description: {}",
loader_id, error_id, static_cast<Loader::ResultStatus>(error_id));
}
}
system.TelemetrySession().AddField(Common::Telemetry::FieldType::App, "Frontend", "SDL");
// Core is loaded, start the GPU (makes the GPU contexts current to this thread)
system.GPU().Start();
system.Renderer().Rasterizer().LoadDiskResources(
system.CurrentProcess()->GetTitleID(), false,
[](VideoCore::LoadCallbackStage, size_t value, size_t total) {});
void(system.Run());
while (emu_window->IsOpen()) {
std::this_thread::sleep_for(std::chrono::milliseconds(1));
}
void(system.Pause());
system.Shutdown();
detached_tasks.WaitForAllTasks();
return 0;
}
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