Alex Harker
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
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#ifndef FRAMELIB_WINDOW_H
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#define FRAMELIB_WINDOW_H
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#include "FrameLib_DSP.h"
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#include "../../FrameLib_Dependencies/WindowFunctions.hpp"
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#include "../../FrameLib_Dependencies/TableReader.hpp"
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// FIX - review gain calculation
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class FrameLib_Window final : public FrameLib_Processor
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{
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// Parameter Enums and Info
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enum ParameterList { kWindowType, kSize, kSqrt, kCompensation, kEndPoints };
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enum Compensation { kOff, kLinear, kPower, kPowerOverLinear };
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enum EndPoints { kFirst, kLast, kBoth, kNone };
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enum WindowTypes { kHann, kHamming, kTriangle, kCosine, kBlackman, kBlackman62, kBlackman70, kBlackman74, kBlackman92, kBlackmanHarris, kFlatTop, kRectangle };
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struct ParameterInfo : public FrameLib_Parameters::Info { ParameterInfo(); };
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public:
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// Constructor / Destructor
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FrameLib_Window(FrameLib_Context context, FrameLib_Parameters::Serial *serialisedParameters, FrameLib_Proxy *proxy);
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~FrameLib_Window();
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// Info
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std::string objectInfo(bool verbose) override;
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std::string inputInfo(unsigned long idx, bool verbose) override;
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std::string outputInfo(unsigned long idx, bool verbose) override;
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private:
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// Helpers
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void updateWindow (unsigned long inSize, EndPoints ends);
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double linearInterp(double pos);
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// Process
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void process() override;
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private:
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struct Fetch : table_fetcher<double>
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{
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Fetch(const double *data) : table_fetcher(1.0), mData(data) {}
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double operator()(intptr_t offset) { return mData[offset]; }
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const double *mData;
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};
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struct WindowCalculator : public WindowFunctions<double *, WindowTypes>
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{
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WindowCalculator()
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{
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add(kHann, window_hann);
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add(kHamming, window_hamming);
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add(kTriangle, window_triangle);
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add(kCosine, window_cosine);
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add(kBlackman, window_blackman);
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add(kBlackman62, window_blackman_62);
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add(kBlackman70, window_blackman_70);
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add(kBlackman74, window_blackman_62);
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add(kBlackman92, window_blackman_92);
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add(kBlackmanHarris, window_blackman_harris);
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add(kFlatTop, window_kaiser);
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add(kRectangle, window_rect);
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}
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};
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// Data
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static WindowCalculator sWindowCalculator;
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double *mWindow;
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WindowTypes mWindowType;
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EndPoints mEnds;
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unsigned long mSize;
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bool mSqrtWindow;
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double mLinearGain;
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double mPowerGain;
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static ParameterInfo sParamInfo;
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};
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#endif
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