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(int* buffer, unsigned num);

protected:
        ResampledSoundDevice(MSXMotherBoard& motherBoard, string_ref name,
                             string_ref description, unsigned channels,
                             bool stereo = false);
        virtual ~ResampledSoundDevice();

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

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

        void createResampler();

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

} // namespace openmsx

#endif