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70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
// Copyright 2016 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <boost/serialization/array.hpp>
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#include "audio_core/audio_types.h"
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#include "audio_core/hle/shared_memory.h"
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namespace AudioCore::HLE {
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class Mixers final {
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public:
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Mixers() {
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Reset();
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}
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void Reset();
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DspStatus Tick(DspConfiguration& config, const IntermediateMixSamples& read_samples,
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IntermediateMixSamples& write_samples, const std::array<QuadFrame32, 3>& input);
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StereoFrame16 GetOutput() const {
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return current_frame;
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}
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private:
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StereoFrame16 current_frame = {};
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using OutputFormat = DspConfiguration::OutputFormat;
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struct {
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std::array<float, 3> intermediate_mixer_volume = {};
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std::array<bool, 2> aux_bus_enable = {};
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std::array<QuadFrame32, 3> intermediate_mix_buffer = {};
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OutputFormat output_format = OutputFormat::Stereo;
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} state;
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/// INTERNAL: Update our internal state based on the current config.
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void ParseConfig(DspConfiguration& config);
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/// INTERNAL: Read samples from shared memory that have been modified by the ARM11.
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void AuxReturn(const IntermediateMixSamples& read_samples);
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/// INTERNAL: Write samples to shared memory for the ARM11 to modify.
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void AuxSend(IntermediateMixSamples& write_samples, const std::array<QuadFrame32, 3>& input);
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/// INTERNAL: Mix current_frame.
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void MixCurrentFrame();
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/// INTERNAL: Downmix from quadraphonic to stereo based on status.output_format and accumulate
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/// into current_frame.
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void DownmixAndMixIntoCurrentFrame(float gain, const QuadFrame32& samples);
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/// INTERNAL: Generate DspStatus based on internal state.
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DspStatus GetCurrentStatus() const;
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template <class Archive>
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void serialize(Archive& ar, const unsigned int) {
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ar & current_frame;
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ar & state.intermediate_mixer_volume;
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ar & state.aux_bus_enable;
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ar & state.intermediate_mix_buffer;
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ar & state.output_format;
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}
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friend class boost::serialization::access;
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};
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} // namespace AudioCore::HLE
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