Wiesner András
a6be70fb7b
- SlopeTrigger -> EdgeTrigger - working Python example included - libwfr.h introduced for easy including all libwfr headers - ChannelBuffer is now template - Semaphore moved
82 lines
3.4 KiB
C++
82 lines
3.4 KiB
C++
//
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// Created by epagris on 2022.05.04..
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//
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#ifndef WFR_APP_MULTISTREAMOSCILLOSCOPE_H
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#define WFR_APP_MULTISTREAMOSCILLOSCOPE_H
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#include <condition_variable>
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#include "ICreatable.h"
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#include "MultiStreamProcessor.h"
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#include "ChannelBuffer.h"
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#include "Trigger.h"
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class MultiStreamOscilloscope : public MultiStreamProcessor, public ICreatable<MultiStreamOscilloscope> {
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public:
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static constexpr size_t DRAW_WINDOW_PERIOD_NS_DEF = 50E+06; // default window length (50ms)
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static constexpr double VOLT_PER_BIN_DEF = 42.80E-06; // default vertical resolution
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static constexpr size_t TRIGGER_POS_PERCENT_DEF = 50; // trigger position is defaulted to the screen center
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public:
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struct SamplePoint {
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int64_t t; // time
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double x; // sample data
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SamplePoint() {
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t = 0;
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x = 0;
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}
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};
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private: // data acquisition related things
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std::vector<std::shared_ptr<ChannelBuffer<SamplePoint>>> mpChBufs; // channel buffers
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size_t mCaptureLength; // length of drawing sliding window in SAMPLES
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size_t mFIFOBlockCnt; // number of blocks the FIFO consists of
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//size_t mFIFOBlockSize; // FIFO block size in bytes
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std::shared_ptr<SamplePoint> mpAssemblyBuffer; // buffer for assembling sample points
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std::shared_ptr<SamplePoint> mpTriggerBuffer; // buffer for probing against trigger conditions
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std::vector<std::vector<SamplePoint>> mCaptureBuffers; // buffer for last capture
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std::mutex mCapture_mtx; // mutex for capture cv
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std::condition_variable mCapture_cv; // condition variable on data capture
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std::vector<bool> mFIFOFull; // stores FIFO fullness indicators, needed for proper triggering and capture
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private:
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void clearFIFOFullnessBits(); // clear fullness bits
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bool isEveryFIFOFull() const; // are the FIFOs full?
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public: // graphical displaying related things
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size_t mTriggerPosition_percent; // trigger position on the screen
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size_t mTriggerProbeBlock_idx; // index of block on which trigger will run
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size_t mPreTriggerSamples; // samples displayed before the trigger point
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size_t mCapturePeriod_ns; // (drawing window) screen period
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public:
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std::shared_ptr<TriggerSettings> trigger; // trigger settings
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double verticalScale; // vertical resolution
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private:
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struct {
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bool armed; // indicates wheter trigger is armed or not
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bool trigd; // indicates if trigger has fired
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int64_t triggerSampleTag;
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bool samplesReady; // samples have been transferred to the output buffer
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} mTrigState;
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public:
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void setup(const std::vector<in_addr_t> &nodes, const AcquisitionFormat &acqFmt) override;
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bool input(size_t ch, const std::shared_ptr<Timestamp> &pTime, const void *pData, size_t size) override;
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public:
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MultiStreamOscilloscope();
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void setScreenPeriod(size_t ns); // set screen (visible waveform window) time length
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size_t getScreenPeriod() const; // get --- " ----
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void setTriggerPosition(size_t percent); // set trigger position
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size_t getTriggerPosition() const; // get trigger position
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std::vector<int64_t> getScreenTimeLimits() const; // get time limits of the screen's edges
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void triggerNow(); // make the scope trigger regardless conditions
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void armTrigger(); // arm trigger for next acquisition
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std::vector<std::vector<MultiStreamOscilloscope::SamplePoint>> capture(); // wait for captured data TODO to be renamed
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};
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#endif //WFR_APP_MULTISTREAMOSCILLOSCOPE_H
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