Re: [suse-programming-e] g++ and VC 2003

28 Jun 2004


      On Mon, 28 Jun 2004, Filippos Papadopoulos wrote:
...
Hi.
I am developing a 3d application in SuSE Linux 9.0 in C++.
I ported the application in WinXP using VStudio2003. The fun stuff is that
the application executes in Linux but it crashes immediatelly in WinXP.
I think i found what is causing the segfault in windows.
I have the following classes (which are bad-coded by the way ;) :
......
Sorry, this is the full Cone class:

#include "Vertex3d.h"

class Cone
{
   public:
      GLuint selectionName;
      bool isSelected;
      Vertex3d bottomCentre; //to kentro ths bashs
      double bottomRadius;
      Vertex3d topCentre; //to kentro ths koryfhs
      double topRadius;
      float* vertices1;
      float* vertices2;
      float* Upper;
      float* Lower;
      float *table;


   Cone()
   {
      ;
   }


   Cone(Vertex3d bottomCentre, double bottomRadius, Vertex3d topCentre, double topRadius)
   {
      this->bottomCentre = bottomCentre;
      this->bottomRadius = bottomRadius;
      this->topCentre = topCentre;
      this->topRadius = topRadius;

      selectionName = 0;
      isSelected = false;

      vertices1 = (float *)malloc( sizeof(float) * 2 * (30 + 1) );
      vertices2 = (float *)malloc( sizeof(float) * 2 * (30 + 1) );
      Upper = (float *)malloc( sizeof(float) * 3 * (30 + 1) );
      Lower = (float *)malloc( sizeof(float) * 3 * (30 + 1) );;


   }


   void draw()
   {


      //dhmiourgia baseon
      drawCircle(1, vertices1, bottomRadius, 8, bottomCentre.x, bottomCentre.y, bottomCentre.z);
      drawCircle(2, vertices2, topRadius, 8, topCentre.x, topCentre.y, topCentre.z);


      //dhmiourgia pleyron
      for(GLuint k=0;  k < 8 ;k++)
      {
         glColor3d(0.51,0.91,1.0);
         glBegin(GL_QUADS);glTexCoord2f(1.0f,1.0f);
            glVertex3f( Upper[(k+0)*3+0 ] , Upper[ (k+0)*3+1 ] , Upper[ (k+0)*3+2 ] );

  glTexCoord2f(0.0f,1.0f);
            glVertex3f( Lower[(k+0)*3+0 ] , Lower[ (k+0)*3+1 ] , Lower[ (k+0)*3+2 ] );

glTexCoord2f(1.0f,0.0f);
            glVertex3f( Lower[(k+1)*3+0 ] , Lower[ (k+1)*3+1 ] , Lower[ (k+1)*3+2 ] );

 glTexCoord2f(0.0f,0.0f);
            glVertex3f( Upper[(k+1)*3+0 ] , Upper[ (k+1)*3+1 ] , Upper[ (k+1)*3+2 ] );

         glEnd();
      }
   }


   void drawCircle(int l, float *vertices, GLdouble radius, GLint slices, double cx, double cy, double cz)
   {
      float  angle = (float) M_PI / (float) slices * 2.0f;
      GLint   i;

      if(l==1)
         table=Upper;
      else
         if(l==2)
            table=Lower;
       /* Ari8mos shmeion =  'slices' . ayta briskontai pano se enan kyklo */

      for( i=0; i<slices+1; i++ )
      {
          vertices[ i*2 + 0 ] = cos( angle * i );
          vertices[ i*2 + 1 ] = sin( angle * i );
      }

       /* Bash tou konou */
      for( i=0; i<slices; i++ )
      {
         glColor3d(0.3 + 0.007*i, 0.3 + 0.007*i , 0.3 + 0.007*i);

         glBegin( GL_POLYGON);


            glNormal3f(cx * vertices[ (i+0)*2+0 ] * radius, cy +vertices[ (i+0)*2+1 ] * radius, 2*cz );
            glVertex3f(cx + vertices[ (i+0)*2+0 ] * radius, cy +vertices[ (i+0)*2+1 ] * radius, cz );
            table[(i+0)*3+0] = cx + vertices[ (i+0)*2+0 ] * radius;
            table[(i+0)*3+1] = cy + vertices[ (i+0)*2+1 ] * radius;
            table[(i+0)*3+2] = cz;

            glNormal3f(cx * vertices[ (i+1)*2+0 ] * radius, cy *vertices[ (i+1)*2+1 ] * radius, 2*cz );
            glVertex3f(cx + vertices[ (i+1)*2+0 ] * radius, cy +vertices[ (i+1)*2+1 ] * radius, cz );
            table[(i+1)*3+0] = cx + vertices[ (i+1)*2+0 ] * radius;
            table[(i+1)*3+1] = cy + vertices[ (i+1)*2+1 ] * radius;
            table[(i+1)*3+2] = cz;

            glNormal3f( cx, cy, cz );
            glVertex3f( cx, cy, cz );
            table[(i+2)*3+0] = cx;
            table[(i+2)*3+1] = cy;
            table[(i+2)*3+2] = cz;

            glNormal3f( 1, 1, 1 );
         glEnd();
      }

}


};