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Diffstat (limited to '')
-rw-r--r-- | src/audio_core/hle/mixers.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/audio_core/hle/mixers.h b/src/audio_core/hle/mixers.h new file mode 100644 index 000000000..b52952eb5 --- /dev/null +++ b/src/audio_core/hle/mixers.h @@ -0,0 +1,63 @@ +// 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 |