feedback_matrix.h

// Copyright (C) 2025 Alexandre St-Onge
// SPDX-License-Identifier: MIT
#pragma once
 
#include "audio_processor.h"
#include "matrix_gallery.h"
 
#include <cstddef>
#include <cstdint>
#include <memory>
#include <span>
 
namespace sfFDN
{
class ScalarFeedbackMatrix : public AudioProcessor
{
  public:
    ScalarFeedbackMatrix(const ScalarFeedbackMatrixOptions& config);
 
    bool SetMatrix(std::span<const float> matrix);
 
    bool GetMatrix(std::span<float> matrix) const;
 
    void Process(const AudioBuffer& input, AudioBuffer& output) noexcept SFFDN_NONBLOCKING override;
 
    uint32_t GetSize() const;
 
    float GetCoefficient(uint32_t row, uint32_t col) const;
 
    uint32_t InputChannelCount() const noexcept SFFDN_NONBLOCKING override;
 
    uint32_t OutputChannelCount() const noexcept SFFDN_NONBLOCKING override;
 
    void Clear() override;
 
    std::unique_ptr<AudioProcessor> Clone() const override;
 
  private:
    uint32_t order_;
    ScalarMatrixType matrix_type_;
    std::vector<float> matrix_data_;
};
 
} // namespace sfFDN