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// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include <vector>
#include "audio_core/common/common.h"
#include "audio_core/renderer/effect/effect_info_base.h"
#include "common/common_types.h"
#include "common/fixed_point.h"
namespace AudioCore::AudioRenderer {
class I3dl2ReverbInfo : public EffectInfoBase {
public:
struct ParameterVersion1 {
/* 0x00 */ std::array<s8, MaxChannels> inputs;
/* 0x06 */ std::array<s8, MaxChannels> outputs;
/* 0x0C */ u16 channel_count_max;
/* 0x0E */ u16 channel_count;
/* 0x10 */ char unk10[0x4];
/* 0x14 */ u32 sample_rate;
/* 0x18 */ f32 room_HF_gain;
/* 0x1C */ f32 reference_HF;
/* 0x20 */ f32 late_reverb_decay_time;
/* 0x24 */ f32 late_reverb_HF_decay_ratio;
/* 0x28 */ f32 room_gain;
/* 0x2C */ f32 reflection_gain;
/* 0x30 */ f32 reverb_gain;
/* 0x34 */ f32 late_reverb_diffusion;
/* 0x38 */ f32 reflection_delay;
/* 0x3C */ f32 late_reverb_delay_time;
/* 0x40 */ f32 late_reverb_density;
/* 0x44 */ f32 dry_gain;
/* 0x48 */ ParameterState state;
/* 0x49 */ char unk49[0x3];
};
static_assert(sizeof(ParameterVersion1) <= sizeof(EffectInfoBase::InParameterVersion1),
"I3dl2ReverbInfo::ParameterVersion1 has the wrong size!");
struct ParameterVersion2 {
/* 0x00 */ std::array<s8, MaxChannels> inputs;
/* 0x06 */ std::array<s8, MaxChannels> outputs;
/* 0x0C */ u16 channel_count_max;
/* 0x0E */ u16 channel_count;
/* 0x10 */ char unk10[0x4];
/* 0x14 */ u32 sample_rate;
/* 0x18 */ f32 room_HF_gain;
/* 0x1C */ f32 reference_HF;
/* 0x20 */ f32 late_reverb_decay_time;
/* 0x24 */ f32 late_reverb_HF_decay_ratio;
/* 0x28 */ f32 room_gain;
/* 0x2C */ f32 reflection_gain;
/* 0x30 */ f32 reverb_gain;
/* 0x34 */ f32 late_reverb_diffusion;
/* 0x38 */ f32 reflection_delay;
/* 0x3C */ f32 late_reverb_delay_time;
/* 0x40 */ f32 late_reverb_density;
/* 0x44 */ f32 dry_gain;
/* 0x48 */ ParameterState state;
/* 0x49 */ char unk49[0x3];
};
static_assert(sizeof(ParameterVersion2) <= sizeof(EffectInfoBase::InParameterVersion2),
"I3dl2ReverbInfo::ParameterVersion2 has the wrong size!");
static constexpr u32 MaxDelayLines = 4;
static constexpr u32 MaxDelayTaps = 20;
struct I3dl2DelayLine {
void Initialize(const s32 delay_time) {
max_delay = delay_time;
buffer.resize(delay_time + 1, 0);
buffer_end = &buffer[delay_time];
output = &buffer[0];
SetDelay(delay_time);
wet_gain = 0.0f;
}
void SetDelay(const s32 delay_time) {
if (max_delay < delay_time) {
return;
}
delay = delay_time;
input = &buffer[(output - buffer.data() + delay) % (max_delay + 1)];
}
Common::FixedPoint<50, 14> Tick(const Common::FixedPoint<50, 14> sample) {
Write(sample);
auto out_sample{Read()};
output++;
if (output >= buffer_end) {
output = buffer.data();
}
return out_sample;
}
Common::FixedPoint<50, 14> Read() const {
return *output;
}
void Write(const Common::FixedPoint<50, 14> sample) {
*input = sample;
input++;
if (input >= buffer_end) {
input = buffer.data();
}
}
Common::FixedPoint<50, 14> TapOut(const s32 index) const {
auto out{input - (index + 1)};
if (out < buffer.data()) {
out += max_delay + 1;
}
return *out;
}
std::vector<Common::FixedPoint<50, 14>> buffer{};
Common::FixedPoint<50, 14>* buffer_end{};
s32 max_delay{};
Common::FixedPoint<50, 14>* input{};
Common::FixedPoint<50, 14>* output{};
s32 delay{};
f32 wet_gain{};
};
struct State {
f32 lowpass_0;
f32 lowpass_1;
f32 lowpass_2;
I3dl2DelayLine early_delay_line;
std::array<s32, MaxDelayTaps> early_tap_steps;
f32 early_gain;
f32 late_gain;
s32 early_to_late_taps;
std::array<I3dl2DelayLine, MaxDelayLines> fdn_delay_lines;
std::array<I3dl2DelayLine, MaxDelayLines> decay_delay_lines0;
std::array<I3dl2DelayLine, MaxDelayLines> decay_delay_lines1;
f32 last_reverb_echo;
I3dl2DelayLine center_delay_line;
std::array<std::array<f32, 3>, MaxDelayLines> lowpass_coeff;
std::array<f32, MaxDelayLines> shelf_filter;
f32 dry_gain;
};
static_assert(sizeof(State) <= sizeof(EffectInfoBase::State),
"I3dl2ReverbInfo::State is too large!");
/**
* Update the info with new parameters, version 1.
*
* @param error_info - Used to write call result code.
* @param in_params - New parameters to update the info with.
* @param pool_mapper - Pool for mapping buffers.
*/
void Update(BehaviorInfo::ErrorInfo& error_info, const InParameterVersion1& in_params,
const PoolMapper& pool_mapper) override;
/**
* Update the info with new parameters, version 2.
*
* @param error_info - Used to write call result code.
* @param in_params - New parameters to update the info with.
* @param pool_mapper - Pool for mapping buffers.
*/
void Update(BehaviorInfo::ErrorInfo& error_info, const InParameterVersion2& in_params,
const PoolMapper& pool_mapper) override;
/**
* Update the info after command generation. Usually only changes its state.
*/
void UpdateForCommandGeneration() override;
/**
* Initialize a new result state. Version 2 only, unused.
*
* @param result_state - Result state to initialize.
*/
void InitializeResultState(EffectResultState& result_state) override;
/**
* Update the host-side state with the ADSP-side state. Version 2 only, unused.
*
* @param cpu_state - Host-side result state to update.
* @param dsp_state - AudioRenderer-side result state to update from.
*/
void UpdateResultState(EffectResultState& cpu_state, EffectResultState& dsp_state) override;
/**
* Get a workbuffer assigned to this effect with the given index.
*
* @param index - Workbuffer index.
* @return Address of the buffer.
*/
CpuAddr GetWorkbuffer(s32 index) override;
};
} // namespace AudioCore::AudioRenderer
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