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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
#include <array>
#include <atomic>
#include <map>
#include <mutex>
#include <span>
#include <string>
#include <string_view>
#include <vector>
#include "common/common_types.h"
namespace VideoCore {
struct FxChainEntry {
std::string file;
std::string technique;
std::map<std::string, std::array<f32, 4>> values;
bool operator==(const FxChainEntry&) const = default;
};
struct FxChainSnapshot {
std::vector<FxChainEntry> entries;
u64 generation{};
};
std::vector<FxChainEntry> ParseFxChain(std::string_view value);
std::string SerializeFxChain(std::span<const FxChainEntry> entries);
void UseGlobalFxSettings();
void UsePerGameFxSettings();
class FxChain {
public:
static FxChain& Instance();
FxChainSnapshot Snapshot() const;
std::vector<FxChainEntry> Entries() const;
size_t Size() const;
void Append(std::string_view file, std::string_view technique);
void Replace(size_t index, std::string_view file, std::string_view technique);
void Remove(size_t index);
void Move(size_t index, int delta);
void Clear();
void SetEntries(std::vector<FxChainEntry> next);
void SetValue(size_t index, std::string_view uniform, const std::array<f32, 4>& value);
std::array<f32, 4> GetValue(size_t index, std::string_view uniform) const;
std::map<std::string, std::array<f32, 4>> EntryValues(size_t index) const;
bool HasValue(size_t index, std::string_view uniform) const;
void ResetValues(size_t index);
void LoadFromSettings();
void StoreToSettings() const;
void DropUnknownEntries();
private:
FxChain() = default;
mutable std::mutex mutex;
std::vector<FxChainEntry> entries;
std::atomic<u64> generation{1};
};
} // namespace VideoCore
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