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/*
*  hello.cpp
*
*  Created by Daisuke Nogami on Nov, 05.
*  opyright 2005 Daisuke Nogami [null-null.net]. Some rights reserved.
*/
 
#include "stdafx.h"
#include "hello.h"
 
#define VISIBLE_MOTION_SHADOW
 
bool isCapture = false;
 
void setView(){
  glClear( GL_COLOR_BUFFER_BIT );
  glLoadIdentity();
  glOrtho( 0.0, 1024, 0.0, 768, -1.0, 1.0 );
  //glOrtho( 30.0, 994, 30.0, 738, -1.0, 1.0 );
}
 
void display(void){
  setView();
 
  // update...
 
  if( !isCapture ){
 
    mfilter.proc();
 
    // attached by motion
    mfilter.attach( &cellset, &rfilter );
    mfilter.attach( &cellset, &asfilter );
 
    // update filter
    asfilter.update();
    asfilter.mappingTo( &cellset );
    rfilter.update();
    rfilter.mappingTo( &cellset );
 
    cellset.update();
  }
 
  // draw...
 
#ifdef VISIBLE_MOTION_SHADOW
 
  // draw background shadow
  glBindTexture( GL_TEXTURE_2D, texName[1] );
  glTexSubImage2D(
    GL_TEXTURE_2D, 0, 0, 0, mfilter._cWidth, mfilter._cHeight,
    GL_RGB, GL_UNSIGNED_BYTE, mfilter.btmp
  );
 
  glBlendFunc( GL_SRC_ALPHA, GL_ONE );
  glEnable( GL_BLEND );
  glEnable( GL_TEXTURE_2D );
  glDisable( GL_DEPTH_TEST );
  glColor3f( 0.0, 0.0, 0.392 );
  //glColor3f( 0.0, 0.0, 0.3 );
  mfilter.draw();
 
#endif
 
  // draw onomatopoeia
  glBindTexture( GL_TEXTURE_2D, texName[0] );
  glBlendFunc( GL_SRC_ALPHA, GL_ONE );
  glEnable( GL_BLEND );
  glEnable( GL_TEXTURE_2D );
  glColor3f( 1.0, 1.0, 1.0 );
  cellset.draw();
 
  static int ws_timer = 0;
  if( mfilter.mfv.size() != 0 ){
    ws_timer = 30;
  }
  if( ws_timer >= 0 ){
    ws_timer--;
 
    // draw weather status
    glDisable(GL_BLEND);
    glDisable(GL_TEXTURE_2D);
    weather.drawStatus();
  }
 
  // draw shade
  /*glDisable( GL_BLEND );
	glDisable( GL_TEXTURE_2D );
	glDisable( GL_DEPTH_TEST );
	glColor3f( 0, 0.5, 1.0 );
	glLineWidth( 1 );
	mfilter.shade();*/
 
  glutSwapBuffers();
}
 
void init(void){
 
#ifdef VISIBLE_MOTION_SHADOW
 
  glClearColor( 0.0, 0.0, 0.0, 1.0 );
 
#else
 
  //glClearColor( 0.0, 0.0, 0.392, 1.0 );
  glClearColor( 0.0, 0.0, 0.3, 1.0 );
 
#endif
 
  // generate texture
  glGenTextures( TEX_NUM, texName );
 
  // onomatopoeia
  onomato_img.load( "data/onomato_m.tga", 512, 512 );
  glBindTexture( GL_TEXTURE_2D, texName[0] );
  glTexImage2D(
    GL_TEXTURE_2D, 0 , GL_RGBA, onomato_img.width, onomato_img.height,
    0, GL_RGBA, GL_UNSIGNED_BYTE, onomato_img.btmp
  );
  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
 
  // motion [from camera]
  glBindTexture( GL_TEXTURE_2D, texName[1] );
  glTexImage2D(
    GL_TEXTURE_2D, 0 , GL_RGB, mfilter._cHeight, mfilter._cHeight,
    0, GL_RGB, GL_UNSIGNED_BYTE, mfilter.btmp
  );
  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
 
  // start thread
  weather.start();
  mfilter.start();
}
 
void resize( int w, int h ){
    glViewport( 0, 0, w, h );
    glLoadIdentity();
    glOrtho( 0.0, w, 0.0, h, -1.0, 1.0 );
}
 
void keyboard(unsigned char key, int x, int y){
  //printf( "key: %c\n", key );
  switch (key) {
    case 50://2
      // stop thread
      weather.signal();
      break;
    case 'q':
      asfilter.sync( 0, 1 );
      rfilter.sync( 0 );
      break;
    case 'w':
      asfilter.sync( 0, 4 );
      rfilter.sync( 0 );
      break;
    case 'e':
      asfilter.sync( 0, 8 );
      rfilter.sync( 0 );
      break;
    case 'r':
      asfilter.sync( 0, 1 );
      rfilter.sync( 1 );
      break;
    case 't':
      asfilter.sync( 0, 1 );
      rfilter.sync( 4 );
      break;
    case 'y':
      asfilter.sync( 0, 4 );
      rfilter.sync( 4 );
      break;
    case 'u':
      weather.sync();
      break;
    case 's':
      isCapture = !isCapture;
      break;
    case '\033':
      exit(0);
      break;
  }
}
 
void mouse( int button, int state, int x, int y ){
  //
}
 
void motion( int x, int y ){
  //
}
 
void timer( int val ){
  glutPostRedisplay();
  glutTimerFunc( 20, timer, 0 );
}
 
int main(int argc, char *argv[]){
  glutInit(&argc, argv);
  glutInitDisplayMode( GLUT_RGBA | GLUT_DOUBLE );
  glutCreateWindow(argv[0]);
 
  //glutInitWindowSize( 512, 384 );
  //glutReshapeWindow(512, 384);
  glutFullScreen();
 
  glutSetCursor(GLUT_CURSOR_NONE);
  glutDisplayFunc(display);
  //glutIdleFunc( display );
  glutTimerFunc( 20, timer, 0 );
  //glutReshapeFunc( resize );
  glutKeyboardFunc(keyboard);
  glutMouseFunc(mouse);
  glutMotionFunc(motion);
 
  init();
 
  glutMainLoop();
 
  return 0;
}