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// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include "audio_core/hle/common.h"
#include "audio_core/hle/dsp.h"
namespace DSP {
namespace HLE {
class Mixers final {
public:
Mixers() {
Reset();
}
void Reset();
DspStatus Tick(DspConfiguration& config, const IntermediateMixSamples& read_samples,
IntermediateMixSamples& write_samples, const std::array<QuadFrame32, 3>& input);
StereoFrame16 GetOutput() const {
return current_frame;
}
private:
StereoFrame16 current_frame = {};
using OutputFormat = DspConfiguration::OutputFormat;
struct {
std::array<float, 3> intermediate_mixer_volume = {};
bool mixer1_enabled = false;
bool mixer2_enabled = false;
std::array<QuadFrame32, 3> intermediate_mix_buffer = {};
OutputFormat output_format = OutputFormat::Stereo;
} state;
/// INTERNAL: Update our internal state based on the current config.
void ParseConfig(DspConfiguration& config);
/// INTERNAL: Read samples from shared memory that have been modified by the ARM11.
void AuxReturn(const IntermediateMixSamples& read_samples);
/// INTERNAL: Write samples to shared memory for the ARM11 to modify.
void AuxSend(IntermediateMixSamples& write_samples, const std::array<QuadFrame32, 3>& input);
/// INTERNAL: Mix current_frame.
void MixCurrentFrame();
/// INTERNAL: Downmix from quadraphonic to stereo based on status.output_format and accumulate
/// into current_frame.
void DownmixAndMixIntoCurrentFrame(float gain, const QuadFrame32& samples);
/// INTERNAL: Generate DspStatus based on internal state.
DspStatus GetCurrentStatus() const;
};
} // namespace HLE
} // namespace DSP
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