VIZ++ Samples

1 Screenshot

2 Source code

/*
 * ProportionalCheckImageTexturedCube.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


//2016/07/20

#include <viz++/opengl/OpenGLMainView.h>
#include <viz++/opengl/OpenGLGC.h>
#include <viz++/opengl/OpenGLTexturedCube.h>

namespace VIZ {

class MainView :public OpenGLMainView {

private:
  //Inner class starts.
  class CheckTexturedCube : public OpenGLTexturedCube {
  private:
    static const int WIDTH  = 64;
    static const int HEIGHT = 64;
    
  public:
    CheckTexturedCube()
    :OpenGLTexturedCube()
    {
      static GLubyte data[WIDTH][HEIGHT][4];

      for (int i = 0; i < HEIGHT; i++) {
        for (int j = 0; j < WIDTH; j++) {
         int c = ((((i & 0x8) == 0)^((j & 0x8)) == 0)) * 255;
         data[i][j][0] = (GLubyte) c;
         data[i][j][1] = (GLubyte) c;
         data[i][j][2] = (GLubyte) c;
         data[i][j][3] = (GLubyte) 255;
        }
      }      
      bind();

      pixelStore(GL_UNPACK_ALIGNMENT, 1);
      parameter(GL_TEXTURE_MAG_FILTER, GL_LINEAR );
      parameter(GL_TEXTURE_MIN_FILTER, GL_LINEAR );
    //env(GL_TEXTURE_ENV_MODE, GL_DECAL );
      env(GL_TEXTURE_ENV_MODE, GL_MODULATE);

      parameter(GL_TEXTURE_WRAP_S, GL_REPEAT);
      parameter(GL_TEXTURE_WRAP_T, GL_REPEAT);
              
     image(0, GL_RGBA, WIDTH, HEIGHT, 
                    0, GL_RGBA, GL_UNSIGNED_BYTE, data);
      unbind();
    }
  };
  //Inner class ends.
  
private:
  SmartPtr<OpenGLGC>          gc;
  SmartPtr<CheckTexturedCube> texture;

public:
  virtual void display()
  {
    int width, height;
    getClientSize(width, height); 

    if (gc && texture) {
      gc -> matrixMode(GL_PROJECTION);
      gc -> loadIdentity();
    
      gc -> perspective(16.0, (double)width / (double)height, 0.5, 100.0); 
      gc -> matrixMode(GL_MODELVIEW);
        
      gc -> clearColor(1.0f, 1.0f, 1.0f, 1.0f);
      gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
      gc -> color(1.0f, 1.0f, 1.0f);
        
      texture -> draw(gc);
    }
  }
  
 
  virtual void resize(int w, int h)
  {
    if (w == 0 || h == 0) {
      return;
    }
    if (gc) {
      gc -> matrixMode(GL_PROJECTION);
      gc -> loadIdentity();
        //gc -> ortho(-2.25, 2.25, -2.25, 2.25, 1., 20.);
      gc -> perspective(16.0, (double)w / (double)h, 0.5, 100.0); 

      gc -> matrixMode(GL_MODELVIEW);
      gc -> loadIdentity();
      gc -> lookAt(4.0, 6.0, 10.0, 0.0, 0.0, 0.0, 0.0, 10.0, 0.0); 
      gc -> rotate(5.0f, 0.5f, 1.0f, 0.25f);
    }
  }

  virtual void initialize()
  {
    gc = new OpenGLGC();
    gc -> enable(GL_DEPTH_TEST);
    gc -> enable(GL_TEXTURE_2D);
    try {
      texture = new CheckTexturedCube();
    } catch (Exception& ex) {
      caught(ex);
    }
  }



public:
  MainView(OpenGLApplet& applet, int width, int height, const char* name)
  :OpenGLMainView(applet, width, height, name)
  {
  }

  ~MainView()
  {
  }
};
}

//
int main(int argc, char** argv) 
{
  try {
    ModuleFileName module;
    const char*  name = module.getAppName();
    OpenGLWaitableApplet applet(argc, argv);

    MainView view(applet, 480, 480, name);
    view.realize();

    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
  return 0;
}