LCOV - code coverage report
Current view: top level - Tools - WhiteNoiseGeneratorFilter.h (source / functions) Hit Total Coverage
Test: coverage.info.cleaned Lines: 1 1 100.0 %
Date: 2021-02-18 20:07:22 Functions: 1 2 50.0 %

          Line data    Source code
       1             : /**
       2             :  * \file WhiteNoiseGeneratorFilter.h
       3             :  */
       4             : 
       5             : #ifndef ATK_TOOLS_WHITENOISEGENERATORFILTER_H
       6             : #define ATK_TOOLS_WHITENOISEGENERATORFILTER_H
       7             : 
       8             : #include <ATK/Core/TypedBaseFilter.h>
       9             : #include <ATK/Tools/config.h>
      10             : 
      11             : #include <boost/random/mersenne_twister.hpp>
      12             : #include <boost/random/uniform_real_distribution.hpp>
      13             : 
      14             : namespace ATK
      15             : {
      16             :   /// A uniform noise generator
      17             :   template<typename DataType_>
      18             :   class ATK_TOOLS_EXPORT WhiteNoiseGeneratorFilter final : public TypedBaseFilter<DataType_>
      19             :   {
      20             :   protected:
      21             :     /// Simplify parent calls
      22             :     using Parent = TypedBaseFilter<DataType_>;
      23             :     using typename Parent::DataType;
      24             :     using Parent::outputs;
      25             :     using Parent::output_sampling_rate;
      26             : 
      27             :   public:
      28             :     /// Constructor
      29             :     WhiteNoiseGeneratorFilter();
      30             :     /// Destructor
      31           4 :     ~WhiteNoiseGeneratorFilter() override = default;
      32             : 
      33             :     /// Sets the output volume, doesn't update the cache
      34             :     void set_volume(DataType_ volume);
      35             :     /// Gets the output volume
      36             :     DataType_ get_volume() const;
      37             : 
      38             :     /// Sets the offset of the generated signal, doesn't update the cache
      39             :     void set_offset(DataType_ offset);
      40             :     /// Gets the offset
      41             :     DataType_ get_offset() const;
      42             : 
      43             :   protected:
      44             :     void process_impl(gsl::index size) const final;
      45             :     
      46             :   private:
      47             :     DataType_ volume{1};
      48             :     DataType_ offset{0};
      49             :     
      50             :     mutable boost::random::mt19937 gen; // Should use a random123 when they will be in Boost
      51             :     mutable boost::random::uniform_real_distribution<DataType_> dist{-1, 1};
      52             :   };
      53             : }
      54             : 
      55             : #endif

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