Re: [Mesa-dev] CVA problem

[Eero Pajarre]

And the code....

#define USE_GL_CVA 1

/* numvert_v == number of vertices*/
/* numtri_v == number of triangles*/


void SV_Simple::draw(int fill)const
{
  EC();
  if (!fill)
    glPolygonMode(GL_FRONT,GL_LINE);

  glEnableClientState(GL_NORMAL_ARRAY);
  glEnableClientState(GL_VERTEX_ARRAY);
  glVertexPointer(3, GL_FLOAT, sizeof(Vert_t), &vertdata_v[0].mvx);
  glNormalPointer(GL_FLOAT, sizeof(Vert_t), &vertdata_v[0].mnx);
#if USE_GL_CVA
  glLockArraysEXT(0,numvert_v);
#endif

  int old_col=-1;
  for(int i=0;i<numtri_v;i++){
    assert(colordata_v[i] != old_col);
    assert(colordata_v[i]);
    old_col=colordata_v[i];
    unsigned tmp=old_col;
    GLfloat tmp_color[4];
    tmp_color[3]=1;
    tmp_color[2]=(tmp & 255)/255.0;
    tmp >>= 8;
    tmp_color[1]=(tmp & 255)/255.0;
    tmp >>= 8;
    tmp_color[0]=(tmp & 255)/255.0;
    glMaterialfv(GL_FRONT, GL_AMBIENT,  tmp_color);
    glMaterialfv(GL_FRONT, GL_DIFFUSE,  tmp_color);

    for(int j=i+1;j<numtri_v;j++)
      if (colordata_v[j] != old_col)
        break;
    glDrawElements(GL_TRIANGLES,(j-i)*3,
                   GL_UNSIGNED_INT,
                   tridata_v+i*3);
    i=j-1;
  }
#if USE_GL_CVA
  glUnlockArraysEXT();
#endif
  glDisableClientState(GL_NORMAL_ARRAY);
  glDisableClientState(GL_VERTEX_ARRAY);
  if (!fill)
    glPolygonMode(GL_FRONT,GL_FILL);
  EC();
}


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