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eden/src/common/settings.cpp

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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <version>
#if __cpp_lib_chrono >= 201907L
#include <chrono>
#include <exception>
#include <stdexcept>
#endif
#include <compare>
#include <cstddef>
#include <filesystem>
#include <functional>
#include <string_view>
#include <type_traits>
#include <deque>
#include <fmt/core.h>
#include "common/settings_enums.h"
#include "common/assert.h"
#include "common/fs/fs_util.h"
#include "common/fs/path_util.h"
#include "common/logging/log.h"
#include "common/settings.h"
#include "common/time_zone.h"
namespace Settings {
// Clang 14 and earlier have errors when explicitly instantiating these classes
#ifndef CANNOT_EXPLICITLY_INSTANTIATE
#define SETTING(TYPE, RANGED) template class Setting<TYPE, RANGED>
#define SWITCHABLE(TYPE, RANGED) template class SwitchableSetting<TYPE, RANGED>
SETTING(AppletMode, false);
SETTING(AudioEngine, false);
SETTING(bool, false);
SETTING(int, false);
SETTING(std::string, false);
SETTING(u16, false);
SWITCHABLE(AnisotropyMode, true);
SWITCHABLE(AntiAliasing, false);
SWITCHABLE(AspectRatio, true);
SWITCHABLE(AstcDecodeMode, true);
SWITCHABLE(AstcRecompression, true);
SWITCHABLE(AudioMode, true);
SWITCHABLE(CpuBackend, true);
SWITCHABLE(CpuAccuracy, true);
SWITCHABLE(FullscreenMode, true);
SWITCHABLE(GpuAccuracy, true);
SWITCHABLE(GpuLogLevel, true);
SWITCHABLE(Language, true);
SWITCHABLE(MemoryLayout, true);
SWITCHABLE(NvdecEmulation, false);
SWITCHABLE(Region, true);
SWITCHABLE(RendererBackend, true);
SWITCHABLE(ScalingFilter, false);
SWITCHABLE(SpirvOptimizeMode, true);
SWITCHABLE(TimeZone, true);
SETTING(VSyncMode, true);
SWITCHABLE(bool, false);
SWITCHABLE(int, false);
SWITCHABLE(int, true);
SWITCHABLE(s64, false);
SWITCHABLE(u16, true);
SWITCHABLE(u32, false);
SWITCHABLE(u8, false);
SWITCHABLE(u8, true);
// Used in UISettings
// TODO see if we can move this to uisettings.cpp
SWITCHABLE(ConfirmStop, true);
#undef SETTING
#undef SWITCHABLE
#endif
Values values;
std::string GetTimeZoneString(TimeZone time_zone) {
const auto time_zone_index = static_cast<std::size_t>(time_zone);
ASSERT(time_zone_index < Common::TimeZone::GetTimeZoneStrings().size());
std::string location_name;
if (time_zone_index == 0) { // Auto
#if __cpp_lib_chrono >= 201907L && !defined(MINGW)
// Disabled for MinGW -- tzdb always returns Etc/UTC
try {
const struct std::chrono::tzdb& time_zone_data = std::chrono::get_tzdb();
const std::chrono::time_zone* current_zone = time_zone_data.current_zone();
std::string_view current_zone_name = current_zone->name();
location_name = current_zone_name;
} catch (std::runtime_error& runtime_error) {
// VCRUNTIME will throw a runtime_error if the operating system's selected time zone
// cannot be found
location_name = Common::TimeZone::FindSystemTimeZone();
LOG_WARNING(Common,
"Error occurred when trying to determine system time zone:\n{}\nFalling "
"back to hour offset \"{}\"",
runtime_error.what(), location_name);
}
#else
location_name = Common::TimeZone::FindSystemTimeZone();
#endif
} else {
location_name = Common::TimeZone::GetTimeZoneStrings()[time_zone_index];
}
return location_name;
}
void LogSettings() {
std::deque<std::string> settings_list;
for (auto& [category, settings] : values.linkage.by_category) {
for (const auto& setting : settings) {
// Hide the token secret, for security reasons.
if (setting->Id() != values.eden_token.Id()) {
auto const is_default = setting->ToString() == setting->DefaultToString();
auto const name = fmt::format(
"{:c}{:c} {}.{}",
is_default ? '-' : 'M',
setting->UsingGlobal() ? '-' : 'C', TranslateCategory(category),
setting->GetLabel());
if (is_default)
settings_list.push_back(fmt::format("{}: {}\n", name, setting->Canonicalize()));
else
settings_list.push_front(fmt::format("{}: {}\n", name, setting->Canonicalize()));
}
}
}
std::string settings_str{};
for (auto const& e : settings_list)
settings_str += e;
LOG_INFO(Config, "Eden Configuration:\n{}", settings_str);
#define LOG_PATH(NAME) \
LOG_INFO(Config, #NAME ": {}", Common::FS::PathToUTF8String(Common::FS::GetEdenPath(Common::FS::EdenPath::NAME)))
LOG_PATH(CacheDir);
LOG_PATH(ConfigDir);
LOG_PATH(LoadDir);
LOG_PATH(NANDDir);
LOG_PATH(SaveDir);
LOG_PATH(SDMCDir);
#undef LOG_PATH
}
bool getDebugKnobAt(u8 i) {
return (values.debug_knobs.GetValue() & (1 << (i & 0xF))) != 0;
}
void UpdateGPUAccuracy() {
values.current_gpu_accuracy = values.gpu_accuracy.GetValue();
}
bool IsGPULevelLow() {
return values.current_gpu_accuracy == GpuAccuracy::Low;
}
bool IsGPULevelMedium() {
return values.current_gpu_accuracy == GpuAccuracy::Medium;
}
bool IsGPULevelHigh() {
return values.current_gpu_accuracy == GpuAccuracy::High;
}
bool IsDMALevelDefault() {
return values.dma_accuracy.GetValue() == DmaAccuracy::Default;
}
bool IsDMALevelSafe() {
return values.dma_accuracy.GetValue() == DmaAccuracy::Safe;
}
bool IsFastmemEnabled() {
if (values.cpu_accuracy.GetValue() == Settings::CpuAccuracy::Debugging)
return bool(values.cpuopt_fastmem);
else if (values.cpu_accuracy.GetValue() == CpuAccuracy::Unsafe)
return bool(values.cpuopt_unsafe_host_mmu);
#if !defined(__APPLE__) && !defined(__linux__) && !defined(__ANDROID__) && !defined(_WIN32)
return false;
#else
return true;
#endif
}
static bool is_nce_enabled = false;
void SetNceEnabled(bool is_39bit) {
const bool is_nce_selected = values.cpu_backend.GetValue() == CpuBackend::Nce;
if (is_nce_selected && !IsFastmemEnabled()) {
LOG_WARNING(Common, "Fastmem is required to natively execute code in a performant manner, "
"falling back to Dynarmic");
}
if (is_nce_selected && !is_39bit) {
LOG_WARNING(
Common,
"Program does not utilize 39-bit address space, unable to natively execute code");
}
is_nce_enabled = IsFastmemEnabled() && is_nce_selected && is_39bit;
}
bool IsNceEnabled() {
return is_nce_enabled;
}
bool IsDockedMode() {
return values.use_docked_mode.GetValue() == Settings::ConsoleMode::Docked;
}
float Volume() {
if (values.audio_muted) {
return 0.0f;
}
return values.volume.GetValue() / static_cast<f32>(values.volume.GetDefault());
}
const char* TranslateCategory(Category category) {
switch (category) {
case Category::Android:
return "Android";
case Category::Audio:
return "Audio";
case Category::Core:
return "Core";
case Category::Cpu:
case Category::CpuDebug:
case Category::CpuUnsafe:
return "Cpu";
case Category::Overlay:
return "Overlay";
case Category::Renderer:
case Category::RendererAdvanced:
case Category::RendererHacks:
case Category::RendererDebug:
case Category::RendererExtensions:
return "Renderer";
case Category::System:
case Category::SystemAudio:
return "System";
case Category::DataStorage:
return "Data Storage";
case Category::Debugging:
case Category::DebuggingGraphics:
return "Debugging";
case Category::GpuDriver:
return "GpuDriver";
case Category::LibraryApplet:
return "LibraryApplet";
case Category::Miscellaneous:
return "Miscellaneous";
case Category::Network:
return "Network";
case Category::WebService:
return "WebService";
case Category::AddOns:
return "DisabledAddOns";
case Category::Controls:
return "Controls";
case Category::Ui:
case Category::UiGeneral:
return "UI";
case Category::UiAudio:
return "UiAudio";
case Category::UiLayout:
return "UILayout";
case Category::UiGameList:
return "UIGameList";
case Category::Screenshots:
return "Screenshots";
case Category::Shortcuts:
return "Shortcuts";
case Category::Multiplayer:
return "Multiplayer";
case Category::Services:
return "Services";
case Category::Paths:
return "Paths";
case Category::MaxEnum:
break;
}
return "Miscellaneous";
}
void TranslateResolutionInfo(ResolutionSetup setup, ResolutionScalingInfo& info) {
info.downscale = false;
switch (setup) {
case ResolutionSetup::Res1_4X:
info.up_scale = 1;
info.down_shift = 2;
info.downscale = true;
break;
case ResolutionSetup::Res1_2X:
info.up_scale = 1;
info.down_shift = 1;
info.downscale = true;
break;
case ResolutionSetup::Res3_4X:
info.up_scale = 3;
info.down_shift = 2;
info.downscale = true;
break;
case ResolutionSetup::Res1X:
info.up_scale = 1;
info.down_shift = 0;
break;
case ResolutionSetup::Res3_2X:
info.up_scale = 3;
info.down_shift = 1;
break;
case ResolutionSetup::Res5_4X:
info.up_scale = 5;
info.down_shift = 2;
break;
case ResolutionSetup::Res2X:
info.up_scale = 2;
info.down_shift = 0;
break;
case ResolutionSetup::Res3X:
info.up_scale = 3;
info.down_shift = 0;
break;
case ResolutionSetup::Res4X:
info.up_scale = 4;
info.down_shift = 0;
break;
case ResolutionSetup::Res5X:
info.up_scale = 5;
info.down_shift = 0;
break;
case ResolutionSetup::Res6X:
info.up_scale = 6;
info.down_shift = 0;
break;
case ResolutionSetup::Res7X:
info.up_scale = 7;
info.down_shift = 0;
break;
case ResolutionSetup::Res8X:
info.up_scale = 8;
info.down_shift = 0;
break;
default:
UNREACHABLE();
}
info.up_factor = static_cast<f32>(info.up_scale) / (1U << info.down_shift);
info.down_factor = static_cast<f32>(1U << info.down_shift) / info.up_scale;
info.active = info.up_scale != 1 || info.down_shift != 0;
}
void UpdateRescalingInfo() {
const auto setup = values.resolution_setup.GetValue();
auto& info = values.resolution_info;
TranslateResolutionInfo(setup, info);
}
void RestoreGlobalState(bool is_powered_on) {
// If a game is running, DO NOT restore the global settings state
if (is_powered_on) {
return;
}
for (const auto& reset : values.linkage.restore_functions) {
reset();
}
// Reset per-game flags
values.use_squashed_iterated_blend = false;
}
static bool configuring_global = true;
bool IsConfiguringGlobal() {
return configuring_global;
}
void SetConfiguringGlobal(bool is_global) {
configuring_global = is_global;
}
u16 SpeedLimit() {
switch (SpeedMode(values.current_speed_mode)) {
case SpeedMode::Standard:
return values.speed_limit.GetValue();
case SpeedMode::Turbo:
return values.turbo_speed_limit.GetValue();
case SpeedMode::Slow:
return values.slow_speed_limit.GetValue();
default:
UNIMPLEMENTED();
}
return 100;
}
void SetSpeedMode(const SpeedMode& mode) {
values.current_speed_mode.SetValue(mode);
switch (mode) {
case SpeedMode::Turbo:
case SpeedMode::Slow:
values.use_speed_limit.SetValue(true);
break;
case SpeedMode::Standard:
default:
break;
}
}
void ToggleStandardMode() {
values.use_speed_limit.SetValue(!values.use_speed_limit.GetValue());
SetSpeedMode(SpeedMode::Standard);
}
void ToggleTurboMode() {
if (values.current_speed_mode.GetValue() != SpeedMode::Turbo)
SetSpeedMode(SpeedMode::Turbo);
else
SetSpeedMode(SpeedMode::Standard);
}
void ToggleSlowMode() {
if (values.current_speed_mode.GetValue() != SpeedMode::Slow)
SetSpeedMode(SpeedMode::Slow);
else
SetSpeedMode(SpeedMode::Standard);
}
} // namespace Settings
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