dummy-image-generator.hpp

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/*
  DUMMY-IMAGE-GENERATOR.hpp  -  creating test output frames for simulated playback
 
   Copyright (C)
    2009,               Joel Holdsworth <joel@airwebreathe.org.uk>,
                        Hermann Vosseler <Ichthyostega@web.de>
 
 **Lumiera** is free software; you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
 Free Software Foundation; either version 2 of the License, or (at your
 option) any later version. See the file COPYING for further details.
 
*/
 
#ifndef STEAM_NODE_DUMMY_IMAGE_GENERATOR_H
#define STEAM_NODE_DUMMY_IMAGE_GENERATOR_H
 
 
#include "lib/error.hpp"
#include "include/display-handles.hpp"
 
 
#include <array>
 
 
namespace steam {
namespace node {
  
  
  class DummyImageGenerator
    {
      uint fps_;
      bool useRGB_;
      
    public:
      static const uint W = 320;
      static const uint H = 240;
      
      DummyImageGenerator(uint fps);
      void configure (lumiera::DisplayerInput);
      
      
      DummyFrame next();
      
      DummyFrame current();
      
      
    private:
      static constexpr uint WORK_SIZ = W * H * 3;
      static constexpr uint BUFF_SIZ = W * H * 4;
      
      bool beat_;
      uint frame_;
      
      std::array<std::byte,WORK_SIZ> workBuf_;     
      std::array<std::byte,BUFF_SIZ> outFrame_A_;  
      std::array<std::byte,BUFF_SIZ> outFrame_B_;
      
      void generateFrame (DummyFrame buffer);
      void generateNoise (DummyFrame buffer);
      void generateBars  (DummyFrame buffer);
    };
  
  
  
  
}} // namespace steam::node
#endif