diff options
Diffstat (limited to 'src/audio_core/renderer/effect/reverb.h')
| -rw-r--r-- | src/audio_core/renderer/effect/reverb.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/audio_core/renderer/effect/reverb.h b/src/audio_core/renderer/effect/reverb.h new file mode 100644 index 000000000..b4df9f6ef --- /dev/null +++ b/src/audio_core/renderer/effect/reverb.h @@ -0,0 +1,190 @@ +// 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 ReverbInfo : 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 */ u32 sample_rate; + /* 0x14 */ u32 early_mode; + /* 0x18 */ s32 early_gain; + /* 0x1C */ s32 pre_delay; + /* 0x20 */ s32 late_mode; + /* 0x24 */ s32 late_gain; + /* 0x28 */ s32 decay_time; + /* 0x2C */ s32 high_freq_Decay_ratio; + /* 0x30 */ s32 colouration; + /* 0x34 */ s32 base_gain; + /* 0x38 */ s32 wet_gain; + /* 0x3C */ s32 dry_gain; + /* 0x40 */ ParameterState state; + }; + static_assert(sizeof(ParameterVersion1) <= sizeof(EffectInfoBase::InParameterVersion1), + "ReverbInfo::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 */ u32 sample_rate; + /* 0x14 */ u32 early_mode; + /* 0x18 */ s32 early_gain; + /* 0x1C */ s32 pre_delay; + /* 0x20 */ s32 late_mode; + /* 0x24 */ s32 late_gain; + /* 0x28 */ s32 decay_time; + /* 0x2C */ s32 high_freq_decay_ratio; + /* 0x30 */ s32 colouration; + /* 0x34 */ s32 base_gain; + /* 0x38 */ s32 wet_gain; + /* 0x3C */ s32 dry_gain; + /* 0x40 */ ParameterState state; + }; + static_assert(sizeof(ParameterVersion2) <= sizeof(EffectInfoBase::InParameterVersion2), + "ReverbInfo::ParameterVersion2 has the wrong size!"); + + static constexpr u32 MaxDelayLines = 4; + static constexpr u32 MaxDelayTaps = 10; + static constexpr u32 NumEarlyModes = 5; + static constexpr u32 NumLateModes = 5; + + struct ReverbDelayLine { + void Initialize(const s32 delay_time, const f32 decay_rate) { + buffer.resize(delay_time + 1, 0); + buffer_end = &buffer[delay_time]; + output = &buffer[0]; + decay = decay_rate; + sample_count_max = delay_time; + SetDelay(delay_time); + } + + void SetDelay(const s32 delay_time) { + if (sample_count_max < delay_time) { + return; + } + sample_count = delay_time; + input = &buffer[(output - buffer.data() + sample_count) % (sample_count_max + 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() { + return *output; + } + + void Write(const Common::FixedPoint<50, 14> sample) { + *(input++) = sample; + if (input >= buffer_end) { + input = buffer.data(); + } + } + + Common::FixedPoint<50, 14> TapOut(const s32 index) { + auto out{input - (index + 1)}; + if (out < buffer.data()) { + out += sample_count; + } + return *out; + } + + s32 sample_count{}; + s32 sample_count_max{}; + std::vector<Common::FixedPoint<50, 14>> buffer{}; + Common::FixedPoint<50, 14>* buffer_end; + Common::FixedPoint<50, 14>* input{}; + Common::FixedPoint<50, 14>* output{}; + Common::FixedPoint<50, 14> decay{}; + }; + + struct State { + ReverbDelayLine pre_delay_line; + ReverbDelayLine center_delay_line; + std::array<s32, MaxDelayTaps> early_delay_times; + std::array<Common::FixedPoint<50, 14>, MaxDelayTaps> early_gains; + s32 pre_delay_time; + std::array<ReverbDelayLine, MaxDelayLines> decay_delay_lines; + std::array<ReverbDelayLine, MaxDelayLines> fdn_delay_lines; + std::array<Common::FixedPoint<50, 14>, MaxDelayLines> hf_decay_gain; + std::array<Common::FixedPoint<50, 14>, MaxDelayLines> hf_decay_prev_gain; + std::array<Common::FixedPoint<50, 14>, MaxDelayLines> prev_feedback_output; + }; + static_assert(sizeof(State) <= sizeof(EffectInfoBase::State), + "ReverbInfo::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 |