source/history.h

   1 /* $Id$
   2
   3 This file is part of NetVis
   4 Copyright @ 2008 Mikko Rasa, Mikkosoft Productions
   5 Distributed unter the GPL
   6 */
   7
   8 #ifndef HISTORY_H_
   9 #define HISTORY_H_
  10
  11 #include <msp/gl/mesh.h>
  12 #include <msp/gl/texture2d.h>
  13 #include <msp/time/timestamp.h>
  14 #include "ringbuffer.h"
  15
  16 class NetVis;
  17
  18 class History
  19 {
  20 private:
  21         struct Bandwidth
  22         {
  23                 unsigned down;
  24                 unsigned up;
  25
  26                 Bandwidth();
  27         };
  28
  29         NetVis &netvis;
  30         unsigned width;
  31         unsigned height;
  32         Bandwidth accum;
  33         RingBuffer<Bandwidth> buffer;
  34         Msp::Time::TimeStamp next_push;
  35         unsigned scale;
  36         Msp::GL::Texture2D texture;
  37         Msp::GL::Mesh mesh;
  38
  39 public:
  40         History(NetVis &, unsigned, unsigned);
  41         void activity(unsigned, unsigned);
  42         void tick(const Msp::Time::TimeStamp &);
  43         void render() const;
  44 private:
  45         void create_texture();
  46 };
  47
  48 #endif