PRBSGeneratorFilter.h

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* libscopeprotocols                                                                                                    *
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#ifndef PRBSGeneratorFilter_h
#define PRBSGeneratorFilter_h
 
//Small PRBSes that run one iteration per thread block
class PRBSGeneratorConstants
{
public:
    uint32_t    count;
    uint32_t    seed;
};
 
//Big PRBSes that do lookahead
class PRBSGeneratorBlockConstants
{
public:
    uint32_t    count;
    uint32_t    seed;
    uint32_t    samplesPerThread;
};
 
class PRBSGeneratorFilter : public Filter
{
public:
    PRBSGeneratorFilter(const std::string& color);
 
    virtual void Refresh(vk::raii::CommandBuffer& cmdBuf, std::shared_ptr<QueueHandle> queue) override;
 
    static std::string GetProtocolName();
    virtual void SetDefaultName() override;
 
    PROTOCOL_DECODER_INITPROC(PRBSGeneratorFilter)
 
    enum Polynomials
    {
        POLY_PRBS7 = 7,
        POLY_PRBS9 = 9,
        POLY_PRBS11 = 11,
        POLY_PRBS15 = 15,
        POLY_PRBS23 = 23,
        POLY_PRBS31 = 31
    };
 
    static bool RunPRBS(uint32_t& state, Polynomials poly);
 
protected:
    FilterParameter& m_baud;
    FilterParameter& m_poly;
    FilterParameter& m_depth;
 
    std::shared_ptr<ComputePipeline> m_prbs7Pipeline;
    std::shared_ptr<ComputePipeline> m_prbs9Pipeline;
    std::shared_ptr<ComputePipeline> m_prbs11Pipeline;
    std::shared_ptr<ComputePipeline> m_prbs15Pipeline;
    std::shared_ptr<ComputePipeline> m_prbs23Pipeline;
    std::shared_ptr<ComputePipeline> m_prbs31Pipeline;
 
    AcceleratorBuffer<uint32_t> m_prbs23Table;
 
    AcceleratorBuffer<uint32_t> m_prbs31Table;
};
 
extern const uint32_t g_prbs23Table[23][23];
extern const uint32_t g_prbs31Table[30][31];
 
#endif