mirror of
https://github.com/yuzu-emu/yuzu.git
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9335cf8857
This was mysteriously missing, likely from when I ported Citra fixes semi-recently.
419 lines
16 KiB
C++
419 lines
16 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <limits>
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#include <map>
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#include <optional>
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#include <stdexcept>
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#include <string>
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#include <typeindex>
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#include <typeinfo>
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#include <fmt/core.h>
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#include "common/common_types.h"
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#include "common/settings_common.h"
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#include "common/settings_enums.h"
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namespace Settings {
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/** The Setting class is a simple resource manager. It defines a label and default value
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* alongside the actual value of the setting for simpler and less-error prone use with frontend
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* configurations. Specifying a default value and label is required. A minimum and maximum range
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* can be specified for sanitization.
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*/
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template <typename Type, bool ranged = false>
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class Setting : public BasicSetting {
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protected:
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Setting() = default;
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public:
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/**
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* Sets a default value, label, and setting value.
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*
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* @param linkage Setting registry
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* @param default_val Initial value of the setting, and default value of the setting
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* @param name Label for the setting
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* @param category_ Category of the setting AKA INI group
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* @param specialization_ Suggestion for how frontend implementations represent this in a config
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* @param save_ Suggests that this should or should not be saved to a frontend config file
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* @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
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* @param other_setting_ A second Setting to associate to this one in metadata
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*/
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explicit Setting(Linkage& linkage, const Type& default_val, const std::string& name,
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Category category_, u32 specialization_ = Specialization::Default,
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bool save_ = true, bool runtime_modifiable_ = false,
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BasicSetting* other_setting_ = nullptr)
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requires(!ranged)
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: BasicSetting(linkage, name, category_, save_, runtime_modifiable_, specialization_,
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other_setting_),
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value{default_val}, default_value{default_val} {}
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virtual ~Setting() = default;
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/**
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* Sets a default value, minimum value, maximum value, and label.
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*
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* @param linkage Setting registry
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* @param default_val Initial value of the setting, and default value of the setting
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* @param min_val Sets the minimum allowed value of the setting
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* @param max_val Sets the maximum allowed value of the setting
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* @param name Label for the setting
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* @param category_ Category of the setting AKA INI group
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* @param specialization_ Suggestion for how frontend implementations represent this in a config
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* @param save_ Suggests that this should or should not be saved to a frontend config file
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* @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
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* @param other_setting_ A second Setting to associate to this one in metadata
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*/
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explicit Setting(Linkage& linkage, const Type& default_val, const Type& min_val,
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const Type& max_val, const std::string& name, Category category_,
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u32 specialization_ = Specialization::Default, bool save_ = true,
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bool runtime_modifiable_ = false, BasicSetting* other_setting_ = nullptr)
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requires(ranged)
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: BasicSetting(linkage, name, category_, save_, runtime_modifiable_, specialization_,
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other_setting_),
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value{default_val}, default_value{default_val}, maximum{max_val}, minimum{min_val} {}
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/**
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* Returns a reference to the setting's value.
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*
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* @returns A reference to the setting
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*/
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[[nodiscard]] virtual const Type& GetValue() const {
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return value;
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}
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/**
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* Sets the setting to the given value.
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*
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* @param val The desired value
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*/
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virtual void SetValue(const Type& val) {
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Type temp{ranged ? std::clamp(val, minimum, maximum) : val};
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std::swap(value, temp);
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}
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/**
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* Returns the value that this setting was created with.
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*
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* @returns A reference to the default value
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*/
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[[nodiscard]] const Type& GetDefault() const {
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return default_value;
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}
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[[nodiscard]] constexpr bool IsEnum() const override {
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return std::is_enum_v<Type>;
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}
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protected:
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[[nodiscard]] std::string ToString(const Type& value_) const {
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if constexpr (std::is_same_v<Type, std::string>) {
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return value_;
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} else if constexpr (std::is_same_v<Type, std::optional<u32>>) {
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return value_.has_value() ? std::to_string(*value_) : "none";
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} else if constexpr (std::is_same_v<Type, bool>) {
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return value_ ? "true" : "false";
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} else if constexpr (std::is_same_v<Type, AudioEngine>) {
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// Compatibility with old AudioEngine setting being a string
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return CanonicalizeEnum(value_);
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} else if constexpr (std::is_floating_point_v<Type>) {
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return fmt::format("{:f}", value_);
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} else if constexpr (std::is_enum_v<Type>) {
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return std::to_string(static_cast<u32>(value_));
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} else {
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return std::to_string(value_);
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}
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}
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public:
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/**
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* Converts the value of the setting to a std::string. Respects the global state if the setting
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* has one.
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*
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* @returns The current setting as a std::string
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*/
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[[nodiscard]] std::string ToString() const override {
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return ToString(this->GetValue());
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}
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/**
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* Returns the default value of the setting as a std::string.
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*
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* @returns The default value as a string.
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*/
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[[nodiscard]] std::string DefaultToString() const override {
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return ToString(default_value);
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}
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/**
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* Assigns a value to the setting.
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*
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* @param val The desired setting value
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*
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* @returns A reference to the setting
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*/
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virtual const Type& operator=(const Type& val) {
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Type temp{ranged ? std::clamp(val, minimum, maximum) : val};
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std::swap(value, temp);
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return value;
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}
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/**
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* Returns a reference to the setting.
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*
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* @returns A reference to the setting
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*/
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explicit virtual operator const Type&() const {
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return value;
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}
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/**
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* Converts the given value to the Setting's type of value. Uses SetValue to enter the setting,
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* thus respecting its constraints.
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*
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* @param input The desired value
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*/
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void LoadString(const std::string& input) override final {
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if (input.empty()) {
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this->SetValue(this->GetDefault());
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return;
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}
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try {
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if constexpr (std::is_same_v<Type, std::string>) {
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this->SetValue(input);
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} else if constexpr (std::is_same_v<Type, std::optional<u32>>) {
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this->SetValue(static_cast<u32>(std::stoul(input)));
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} else if constexpr (std::is_same_v<Type, bool>) {
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this->SetValue(input == "true");
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} else if constexpr (std::is_same_v<Type, float>) {
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this->SetValue(std::stof(input));
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} else if constexpr (std::is_same_v<Type, AudioEngine>) {
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this->SetValue(ToEnum<AudioEngine>(input));
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} else {
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this->SetValue(static_cast<Type>(std::stoll(input)));
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}
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} catch (std::invalid_argument&) {
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this->SetValue(this->GetDefault());
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} catch (std::out_of_range&) {
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this->SetValue(this->GetDefault());
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}
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}
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[[nodiscard]] std::string Canonicalize() const override final {
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if constexpr (std::is_enum_v<Type>) {
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return CanonicalizeEnum(this->GetValue());
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} else {
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return ToString(this->GetValue());
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}
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}
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/**
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* Gives us another way to identify the setting without having to go through a string.
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*
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* @returns the type_index of the setting's type
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*/
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[[nodiscard]] std::type_index TypeId() const override final {
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return std::type_index(typeid(Type));
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}
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[[nodiscard]] constexpr u32 EnumIndex() const override final {
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if constexpr (std::is_enum_v<Type>) {
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return EnumMetadata<Type>::Index();
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} else {
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return std::numeric_limits<u32>::max();
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}
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}
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[[nodiscard]] constexpr bool IsFloatingPoint() const final {
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return std::is_floating_point_v<Type>;
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}
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[[nodiscard]] constexpr bool IsIntegral() const final {
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return std::is_integral_v<Type>;
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}
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[[nodiscard]] std::string MinVal() const override final {
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if constexpr (std::is_arithmetic_v<Type> && !ranged) {
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return this->ToString(std::numeric_limits<Type>::min());
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} else {
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return this->ToString(minimum);
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}
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}
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[[nodiscard]] std::string MaxVal() const override final {
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if constexpr (std::is_arithmetic_v<Type> && !ranged) {
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return this->ToString(std::numeric_limits<Type>::max());
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} else {
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return this->ToString(maximum);
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}
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}
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[[nodiscard]] constexpr bool Ranged() const override {
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return ranged;
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}
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protected:
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Type value{}; ///< The setting
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const Type default_value{}; ///< The default value
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const Type maximum{}; ///< Maximum allowed value of the setting
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const Type minimum{}; ///< Minimum allowed value of the setting
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};
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/**
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* The SwitchableSetting class is a slightly more complex version of the Setting class. This adds a
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* custom setting to switch to when a guest application specifically requires it. The effect is that
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* other components of the emulator can access the setting's intended value without any need for the
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* component to ask whether the custom or global setting is needed at the moment.
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*
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* By default, the global setting is used.
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*/
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template <typename Type, bool ranged = false>
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class SwitchableSetting : virtual public Setting<Type, ranged> {
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public:
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/**
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* Sets a default value, label, and setting value.
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*
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* @param linkage Setting registry
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* @param default_val Initial value of the setting, and default value of the setting
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* @param name Label for the setting
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* @param category_ Category of the setting AKA INI group
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* @param specialization_ Suggestion for how frontend implementations represent this in a config
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* @param save_ Suggests that this should or should not be saved to a frontend config file
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* @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
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* @param other_setting_ A second Setting to associate to this one in metadata
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*/
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template <typename T = BasicSetting>
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explicit SwitchableSetting(Linkage& linkage, const Type& default_val, const std::string& name,
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Category category_, u32 specialization_ = Specialization::Default,
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bool save_ = true, bool runtime_modifiable_ = false,
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typename std::enable_if<!ranged, T*>::type other_setting_ = nullptr)
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: Setting<Type, false>{
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linkage, default_val, name, category_, specialization_,
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save_, runtime_modifiable_, other_setting_} {
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linkage.restore_functions.emplace_back([this]() { this->SetGlobal(true); });
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}
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virtual ~SwitchableSetting() = default;
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/**
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* Sets a default value, minimum value, maximum value, and label.
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*
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* @param linkage Setting registry
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* @param default_val Initial value of the setting, and default value of the setting
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* @param min_val Sets the minimum allowed value of the setting
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* @param max_val Sets the maximum allowed value of the setting
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* @param name Label for the setting
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* @param category_ Category of the setting AKA INI group
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* @param specialization_ Suggestion for how frontend implementations represent this in a config
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* @param save_ Suggests that this should or should not be saved to a frontend config file
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* @param runtime_modifiable_ Suggests whether this is modifiable while a guest is loaded
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* @param other_setting_ A second Setting to associate to this one in metadata
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*/
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template <typename T = BasicSetting>
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explicit SwitchableSetting(Linkage& linkage, const Type& default_val, const Type& min_val,
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const Type& max_val, const std::string& name, Category category_,
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u32 specialization_ = Specialization::Default, bool save_ = true,
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bool runtime_modifiable_ = false,
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typename std::enable_if<ranged, T*>::type other_setting_ = nullptr)
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: Setting<Type, true>{linkage, default_val, min_val,
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max_val, name, category_,
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specialization_, save_, runtime_modifiable_,
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other_setting_} {
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linkage.restore_functions.emplace_back([this]() { this->SetGlobal(true); });
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}
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/**
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* Tells this setting to represent either the global or custom setting when other member
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* functions are used.
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*
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* @param to_global Whether to use the global or custom setting.
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*/
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void SetGlobal(bool to_global) override final {
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use_global = to_global;
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}
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/**
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* Returns whether this setting is using the global setting or not.
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*
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* @returns The global state
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*/
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[[nodiscard]] bool UsingGlobal() const override final {
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return use_global;
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}
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/**
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* Returns either the global or custom setting depending on the values of this setting's global
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* state or if the global value was specifically requested.
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*
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* @param need_global Request global value regardless of setting's state; defaults to false
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*
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* @returns The required value of the setting
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*/
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[[nodiscard]] const Type& GetValue() const override final {
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if (use_global) {
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return this->value;
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}
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return custom;
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}
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[[nodiscard]] const Type& GetValue(bool need_global) const {
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if (use_global || need_global) {
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return this->value;
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}
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return custom;
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}
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/**
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* Sets the current setting value depending on the global state.
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*
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* @param val The new value
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*/
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void SetValue(const Type& val) override final {
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Type temp{ranged ? std::clamp(val, this->minimum, this->maximum) : val};
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if (use_global) {
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std::swap(this->value, temp);
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} else {
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std::swap(custom, temp);
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}
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}
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[[nodiscard]] constexpr bool Switchable() const override final {
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return true;
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}
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[[nodiscard]] std::string ToStringGlobal() const override final {
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return this->ToString(this->value);
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}
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/**
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* Assigns the current setting value depending on the global state.
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*
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* @param val The new value
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*
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* @returns A reference to the current setting value
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*/
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const Type& operator=(const Type& val) override final {
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Type temp{ranged ? std::clamp(val, this->minimum, this->maximum) : val};
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if (use_global) {
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std::swap(this->value, temp);
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return this->value;
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}
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std::swap(custom, temp);
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return custom;
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}
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/**
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* Returns the current setting value depending on the global state.
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*
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* @returns A reference to the current setting value
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*/
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explicit operator const Type&() const override final {
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if (use_global) {
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return this->value;
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}
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return custom;
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}
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protected:
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bool use_global{true}; ///< The setting's global state
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Type custom{}; ///< The custom value of the setting
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};
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} // namespace Settings
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