TestWaveformSource.h

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* libscopehal                                                                                                          *
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#ifndef TestWaveformSource_h
#define TestWaveformSource_h
 
#include "VulkanFFTPlan.h"
#include <random>
 
class TestWaveformSource
{
public:
    TestWaveformSource(std::minstd_rand& rng);
    virtual ~TestWaveformSource();
 
    TestWaveformSource(const TestWaveformSource&) =delete;
    TestWaveformSource& operator=(const TestWaveformSource&) =delete;
 
    WaveformBase* GenerateNoisySinewave(
        float amplitude,
        float startphase,
        float period,
        int64_t sampleperiod,
        size_t depth,
        float noise_stdev = 0.01,
        std::function<void(float)> downloadCallback = nullptr);
 
    WaveformBase* GenerateNoisySinewaveSum(
        float amplitude,
        float startphase1,
        float startphase2,
        float period1,
        float period2,
        int64_t sampleperiod,
        size_t depth,
        float noise_stdev = 0.01,
        std::function<void(float)> downloadCallback = nullptr);
 
    WaveformBase* GeneratePRBS31(
        vk::raii::CommandBuffer& cmdBuf,
        std::shared_ptr<QueueHandle> queue,
        float amplitude,
        float period,
        int64_t sampleperiod,
        size_t depth,
        bool lpf = true,
        float noise_stdev = 0.01,
        std::function<void(float)> downloadCallback = nullptr);
 
    WaveformBase* Generate8b10b(
        vk::raii::CommandBuffer& cmdBuf,
        std::shared_ptr<QueueHandle> queue,
        float amplitude,
        float period,
        int64_t sampleperiod,
        size_t depth,
        bool lpf = true,
        float noise_stdev = 0.01,
        std::function<void(float)> downloadCallback = nullptr);
 
    WaveformBase* GenerateStep(
        float vlo,
        float vhi,
        int64_t sampleperiod,
        size_t depth);
 
    void DegradeSerialData(
        UniformAnalogWaveform* cap,
        int64_t sampleperiod,
        size_t depth,
        bool lpf,
        float noise_stdev,
        vk::raii::CommandBuffer& cmdBuf,
        std::shared_ptr<QueueHandle> queue);
 
protected:
 
    std::minstd_rand& m_rng;
 
    AcceleratorBuffer<float> m_forwardInBuf;
 
    AcceleratorBuffer<float> m_forwardOutBuf;
 
    AcceleratorBuffer<float> m_reverseOutBuf;
 
    std::unique_ptr<VulkanFFTPlan> m_vkForwardPlan;
 
    std::unique_ptr<VulkanFFTPlan> m_vkReversePlan;
 
    double m_cachedBinSize;
 
    AcceleratorBuffer<float> m_resampledSparamSines;
 
    AcceleratorBuffer<float> m_resampledSparamCosines;
 
    ComputePipeline m_rectangularComputePipeline;
 
    ComputePipeline m_channelEmulationComputePipeline;
 
    SParameters m_sparams;
 
    size_t m_cachedNumPoints;
 
    size_t m_cachedRawSize;
 
    void InterpolateSparameters(float bin_hz, size_t nouts);
};
 
#endif