ResampledSoundDevice.hh

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#ifndef RESAMPLEDSOUNDDEVICE_HH
#define RESAMPLEDSOUNDDEVICE_HH

#include "SoundDevice.hh"
#include "Observer.hh"
#include <memory>

namespace openmsx {

class MSXMotherBoard;
class ResampleAlgo;
class Setting;
template<typename T> class EnumSetting;

class ResampledSoundDevice : public SoundDevice, protected Observer<Setting>
{
public:
        enum ResampleType { RESAMPLE_HQ, RESAMPLE_LQ, RESAMPLE_BLIP };

        bool generateInput(float* buffer, unsigned num);

protected:
        ResampledSoundDevice(MSXMotherBoard& motherBoard, string_view name,
                             string_view description, unsigned channels,
                             unsigned inputSampleRate, bool stereo);
        ~ResampledSoundDevice();

        // SoundDevice
        void setOutputRate(unsigned sampleRate) override;
        bool updateBuffer(unsigned length, float* buffer,
                          EmuTime::param time) override;

        // Observer<Setting>
        void update(const Setting& setting) override;

        void createResampler();

private:
        EnumSetting<ResampleType>& resampleSetting;
        std::unique_ptr<ResampleAlgo> algo;
};

} // namespace openmsx

#endif