win32gl/test/shader/ShaderPlaidsBenchDemo.cpp

   1 #include <psychlops.h>
   2 using namespace Psychlops;
   3
   4 struct GaborVar : public Psychlops::Rectangle {
   5         double contrast, wavelength, orientation, phase;
   6 };
   7
   8 void psychlops_main() {
   9         //Canvas cnvs(1024,768,Canvas::window);
  10         Canvas cnvs(Canvas::fullscreen);
  11         cnvs.watchFPS();
  12         cnvs.showFPS();
  13         Mouse::show();
  14
  15         const int N = 2500;
  16         Figures::ShaderPlaid *plaid;
  17         plaid = new Figures::ShaderPlaid[N];
  18         for(int y=0; y<N; y++) {
  19                 plaid[y].phase = random(2*PI);
  20                 plaid[y].contrast = random(1.0);
  21                 plaid[y].wavelength = 5+random(10.0);
  22                 plaid[y].phase2 = random(2*PI);
  23                 plaid[y].contrast2 = random(1.0);
  24                 plaid[y].wavelength2 = 10+random(20.0);
  25         }
  26
  27         Image img;
  28         GaborVar gaborVar[100];
  29         for(int y=0; y<100; y++) {
  30                 gaborVar[y].contrast = 0.5+random(0.5);
  31                 gaborVar[y].phase = random(2*PI);
  32                 gaborVar[y].wavelength = 5+random(10.0);
  33         }
  34
  35
  36         double sigma = 6.0;
  37         int n1 = 3, n2 = 0;
  38         Widgets::Slider slider1, slider2;
  39         slider1.link(n1, Interval(-1,10), 1).set(200, 30).centering().shift(-cnvs.getHcenter()/2,0);
  40         slider2.link(n2, Interval(-1,1000), 4).set(200, 30).centering().shift(cnvs.getHcenter()/2,0);
  41
  42         while(!Keyboard::esc.pushed()) {
  43                 cnvs.clear(Color::gray);
  44                 if(slider1.changed()) for(int i=0; i<n1; i++) gaborVar[i].centering(Psychlops::random(cnvs.getWidth()/2), Psychlops::random(cnvs.getHeight())).shift(0, 0);
  45                 if(slider2.changed()) for(int i=0; i<n2; i++) plaid[i].centering(Psychlops::random(cnvs.getWidth()/2), Psychlops::random(cnvs.getHeight())).shift( cnvs.getWidth()/2, 0);
  46                 for(int i=0; i<n1; i++) {
  47                         gaborVar[i].phase += PI/6;
  48                         gaborVar[i].wavelength = gaborVar[i].wavelength + .5*sin(gaborVar[i].phase);
  49                         gaborVar[i].orientation = -atan2(gaborVar[i].getCenter().x-cnvs.mouse().x, gaborVar[i].getCenter().y-cnvs.mouse().y);
  50                         Figures::drawGaborToImage(img, sigma, 1.0/gaborVar[i].wavelength, gaborVar[i].contrast, gaborVar[i].orientation, gaborVar[i].phase);
  51                         img.centering(gaborVar[i]).draw();
  52                 }
  53                 for(int i=0; i<n2; i++) {
  54                         plaid[i].resize(sigma*8, sigma*8);
  55                         plaid[i].phase += PI/6;
  56                         plaid[i].wavelength = plaid[i].wavelength + .5*sin(plaid[i].phase);
  57                         plaid[i].orientation = -atan2(plaid[i].getCenter().x-cnvs.mouse().x, plaid[i].getCenter().y-cnvs.mouse().y);
  58                         plaid[i].contrast2 = Keyboard::spc.pressed() ? .5 : 0;
  59                         plaid[i].phase2 += PI/6;
  60                         plaid[i].wavelength2 = plaid[i].wavelength2 + .5*sin(plaid[i].phase2);
  61                         plaid[i].orientation2 = -PI/2-atan2(plaid[i].getCenter().x-cnvs.mouse().x, plaid[i].getCenter().y-cnvs.mouse().y);
  62                         plaid[i].draw();
  63                 }
  64                 slider1.draw();
  65                 slider2.draw();
  66                 cnvs.flip();
  67         }
  68         delete [] plaid;
  69 }
  70