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settings: Give indices to enums

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This commit is contained in:
lat9nq 2023-06-21 21:41:06 -04:00
parent ecc1feff64
commit e7f01128f1
3 changed files with 36 additions and 6 deletions
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5
src/common/settings_common.h
View file

@ -220,6 +220,11 @@ public:
*/
[[nodiscard]] virtual constexpr bool Ranged() const = 0;
/**
* @returns The index of the enum if the underlying setting type is an enum, else max of u32.
*/
[[nodiscard]] virtual constexpr u32 EnumIndex() const = 0;
/*
* Switchable settings
*/

28
src/common/settings_enums.h
View file

@ -11,8 +11,9 @@
namespace Settings {
template <typename T>
struct Canonicalization {
static constexpr std::vector<std::pair<std::string, T>> Get();
struct EnumMetadata {
static constexpr std::vector<std::pair<std::string, T>> Canonicalizations();
static constexpr u32 Index();
};
#define PAIR_45(N, X, ...) {#X, N::X} __VA_OPT__(, PAIR_46(N, __VA_ARGS__))
@ -65,10 +66,17 @@ struct Canonicalization {
#define ENUM(NAME, ...) \
enum class NAME : u32 { __VA_ARGS__ }; \
template <> \
constexpr std::vector<std::pair<std::string, NAME>> Canonicalization<NAME>::Get() { \
constexpr std::vector<std::pair<std::string, NAME>> EnumMetadata<NAME>::Canonicalizations() { \
return {PAIR(NAME, __VA_ARGS__)}; \
} \
template <> \
constexpr u32 EnumMetadata<NAME>::Index() { \
return __COUNTER__; \
}
// AudioEngine must be specified discretely due to having existing but slightly different
// canonicalizations
// TODO (lat9nq): Remove explicit definition of AudioEngine/sink_id
enum class AudioEngine : u32 {
Auto,
Cubeb,
@ -77,7 +85,8 @@ enum class AudioEngine : u32 {
};
template <>
constexpr std::vector<std::pair<std::string, AudioEngine>> Canonicalization<AudioEngine>::Get() {
constexpr std::vector<std::pair<std::string, AudioEngine>>
EnumMetadata<AudioEngine>::Canonicalizations() {
return {
{"auto", AudioEngine::Auto},
{"cubeb", AudioEngine::Cubeb},
@ -86,6 +95,13 @@ constexpr std::vector<std::pair<std::string, AudioEngine>> Canonicalization<Audi
};
}
template <>
constexpr u32 EnumMetadata<AudioEngine>::Index() {
// This is just a sufficiently large number that is more than the number of other enums declared
// here
return 100;
}
ENUM(AudioMode, Mono, Stereo, Surround);
ENUM(Language, Japanese, EnglishAmerican, French, German, Italian, Spanish, Chinese, Korean, Dutch,
@ -130,7 +146,7 @@ ENUM(AspectRatio, R16_9, R4_3, R21_9, R16_10, Stretch);
template <typename Type>
constexpr std::string CanonicalizeEnum(Type id) {
const auto group = Canonicalization<Type>::Get();
const auto group = EnumMetadata<Type>::Canonicalizations();
for (auto& [name, value] : group) {
if (value == id) {
return name;
@ -141,7 +157,7 @@ constexpr std::string CanonicalizeEnum(Type id) {
template <typename Type>
constexpr Type ToEnum(const std::string& canonicalization) {
const auto group = Canonicalization<Type>::Get();
const auto group = EnumMetadata<Type>::Canonicalizations();
for (auto& [name, value] : group) {
if (name == canonicalization) {
return value;

9
src/common/settings_setting.h
View file

@ -3,6 +3,7 @@
#pragma once
#include <limits>
#include <map>
#include <optional>
#include <stdexcept>
@ -197,6 +198,14 @@ public:
return std::type_index(typeid(Type));
}
constexpr u32 EnumIndex() const override {
if constexpr (std::is_enum<Type>()) {
return EnumMetadata<Type>::Index();
} else {
return std::numeric_limits<u32>::max();
}
}
virtual std::string MinVal() const override {
return this->ToString(minimum);
}