64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
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// 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 "audio_core/hle/common.h"
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#include "audio_core/hle/dsp.h"
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namespace DSP {
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namespace 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,
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const IntermediateMixSamples& read_samples,
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IntermediateMixSamples& write_samples,
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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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bool mixer1_enabled = false;
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bool mixer2_enabled = false;
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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 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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};
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} // namespace HLE
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} // namespace DSP
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