ClockRecoveryFilter.h

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* libscopeprotocols                                                                                                    *
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* Copyright (c) 2012-2025 Andrew D. Zonenberg and contributors                                                         *
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#ifndef ClockRecoveryFilter_h
#define ClockRecoveryFilter_h
 
#include "../scopehal/LevelCrossingDetector.h"
 
class ClockRecoveryFilter : public Filter
{
public:
    ClockRecoveryFilter(const std::string& color);
    virtual ~ClockRecoveryFilter();
 
    virtual void Refresh(vk::raii::CommandBuffer& cmdBuf, std::shared_ptr<QueueHandle> queue) override;
    virtual DataLocation GetInputLocation() override;
 
    static std::string GetProtocolName();
 
    virtual bool ValidateChannel(size_t i, StreamDescriptor stream) override;
 
    PROTOCOL_DECODER_INITPROC(ClockRecoveryFilter)
 
protected:
    void FillSquarewaveGeneric(SparseDigitalWaveform& cap);
 
    void InnerLoopWithGating(
        SparseDigitalWaveform& cap,
        AcceleratorBuffer<int64_t>& edges,
        size_t nedges,
        int64_t tend,
        int64_t initialPeriod,
        int64_t halfPeriod,
        int64_t fnyquist,
        WaveformBase* gate,
        SparseDigitalWaveform* sgate,
        UniformDigitalWaveform* ugate);
 
    void InnerLoopWithNoGating(
        SparseDigitalWaveform& cap,
        AcceleratorBuffer<int64_t>& edges,
        size_t nedges,
        int64_t tend,
        int64_t initialPeriod,
        int64_t halfPeriod,
        int64_t fnyquist);
 
#ifdef __x86_64__
    void FillSquarewaveAVX2(SparseDigitalWaveform& cap);
#endif
 
    std::string m_baudname;
    std::string m_threshname;
 
    LevelCrossingDetector m_detector;
};
 
#endif