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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <span>
#include "audio_core/renderer/effect/effect_info_base.h"
#include "audio_core/renderer/effect/effect_result_state.h"
#include "common/common_types.h"
namespace AudioCore::Renderer {
class EffectContext {
public:
/**
* Initialize the effect context
* @param effect_infos_ - List of effect infos for this context
* @param effect_count_ - The number of effects in the list
* @param result_states_cpu_ - The workbuffer of result states for the CPU for this context
* @param result_states_dsp_ - The workbuffer of result states for the DSP for this context
* @param dsp_state_count - The number of result states
*/
void Initialize(std::span<EffectInfoBase> effect_infos_, u32 effect_count_,
std::span<EffectResultState> result_states_cpu_,
std::span<EffectResultState> result_states_dsp_, size_t dsp_state_count);
/**
* Get the EffectInfo for a given index
* @param index Which effect to return
* @return Pointer to the effect
*/
EffectInfoBase& GetInfo(const u32 index);
/**
* Get the CPU result state for a given index
* @param index Which result to return
* @return Pointer to the effect result state
*/
EffectResultState& GetResultState(const u32 index);
/**
* Get the DSP result state for a given index
* @param index Which result to return
* @return Pointer to the effect result state
*/
EffectResultState& GetDspSharedResultState(const u32 index);
/**
* Get the number of effects in this context
* @return The number of effects
*/
u32 GetCount() const;
/**
* Update the CPU and DSP result states for all effects
*/
void UpdateStateByDspShared();
private:
/// Workbuffer for all of the effects
std::span<EffectInfoBase> effect_infos{};
/// Number of effects in the workbuffer
u32 effect_count{};
/// Workbuffer of states for all effects, kept host-side and not directly modified, dsp states
/// are copied here on the next render frame
std::span<EffectResultState> result_states_cpu{};
/// Workbuffer of states for all effects, used by the AudioRenderer to track effect state
/// between calls
std::span<EffectResultState> result_states_dsp{};
/// Number of result states in the workbuffers
size_t dsp_state_count{};
};
} // namespace AudioCore::Renderer
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