vpBoundio.cpp

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Le module "boundio.c" contient les procedures d'entree/sortie
 * des types definis dans le module "bound.h".
 * Les entrees non specifiees sont effectuees
 * sur le fichier "source" de "lex.c".
 * Pour les mots cles des "fprintf_..." voir "token.c".
 *
 * Authors:
 * Jean-Luc CORRE
 *
 *****************************************************************************/


#include <visp3/core/vpConfig.h>

#ifndef DOXYGEN_SHOULD_SKIP_THIS
#include "vpMy.h"
#include "vpArit.h"
#include "vpBoundio.h"
#include "vpToken.h"
#include "vpSkipio.h"
#include "vpLex.h"

#include    <errno.h>
#include    <stdio.h>
#include    <stdlib.h>

/*
 * La procedure "fscanf_Bound" lit en ascii une surface.
 * Entree :
 * bp       Surface a lire.
 */
void fscanf_Bound (Bound *bp)
{
    /* Lecture du type polygonale de la surface.    */

    skip_keyword (T_TYPE, "bound: keyword \"type\" expected");
    if (lex () != T_INT)
      lexerr ("start","bound_type: boolean expected (0=FALSE|~0=TRUE)", NULL);
    bp->is_polygonal = (myint ? 1 : 0);

    /* Lecture de la liste de points de la surface. */

    skip_keyword (T_POINT_LIST, "bound: keyword \"point_list\" expected");
    pusherr ("bound_point_list: ");
    fscanf_Point3f_list (&bp->point);
    poperr ();

    /* Lecture de la liste de faces de la surface.  */

    skip_keyword (T_FACE_LIST, "bound: keyword \"face_list\" expected");
    pusherr ("bound_face_list: ");
    fscanf_Face_list (&bp->face);
    poperr ();
}

/*
 * La procedure "fscanf_Face_list" lit en ascii une liste de faces.
 * Entree :
 * lp       Liste de faces a lire.
 */ 
void fscanf_Face_list (Face_list *lp)
{
    Face    *fp;    /* face courante    */
    Face    *fend;  /* borne de "fp"    */

    /* Lecture du nombre de faces de la liste   */

    if (lex () != T_INT)
        lexerr ("start","integer expected (number of faces)", NULL);
    lp->nbr = (Index) myint;

    /* Allocation dynamique de la liste de faces.   */

    if (lp->nbr == 0)
        lp->ptr = NULL;
    else if ((lp->ptr = (Face *) malloc (lp->nbr * sizeof (Face)))
        == NULL) {
    static  char    proc_name[] = "fscanf_Face_list";
    perror (proc_name);
        exit (1);
    }

    /* Lecture des faces de la liste une a une. */

    fp   = lp->ptr;
    fend = fp + lp->nbr;
    for (; fp < fend; fp++) {
    Vertex_list *vlp = &fp->vertex;
        Index       *vp;    /* sommet courant   */
        Index       *vend;  /* borne de "vp"    */

        /* Lecture du type polygonale de la face.   */

        if (lex () != T_INT)
          lexerr ("start", "boolean expected (0=FALSE|~0=TRUE)", NULL);
        fp->is_polygonal = (myint ? 1 : 0);

        /* Lecture du nombre de sommets de la face. */

        if (lex () != T_INT)
          lexerr ("start", "integer expected (number of vertices)", NULL);
    vlp->nbr = (Index) myint;

        /* Allocation dynamique du polygone de la face. */

    if (vlp->nbr <= DEFAULT_VSIZE)
      vlp->ptr = vlp->tbl;
    else if ((vlp->ptr = (Index *) malloc (vlp->nbr * sizeof (Index)))
            == NULL) {
      static    char    proc_name[] = "fscanf_Face_list";
      perror (proc_name);
            exit (1);
        }

        /* Lecture des sommets de la face un a un.  */

    vp   = vlp->ptr;
    vend = vp + vlp->nbr;
        for (; vp < vend; *vp++ = (Index) myint)
        if (lex () != T_INT)
          lexerr ("start", "integer expected (index of points 3D)", NULL);
    }
}   

/*
 * La procedure "fscanf_Point_list" lit en ascii une liste de points 3D.
 * Entree :
 * lp       Liste de points a lire.
 */
void fscanf_Point3f_list (Point3f_list *lp)
{
  static const char *err_tbl[] = {
    "float expected (coordinate ",
    " of point)"
  };
    Point3f *pp;    /* point courant    */
    Point3f *pend;  /* borne de "pp"    */

    /* Lecture du nombre de points de la liste. */

    if (lex () != T_INT)
      lexerr ("start", "integer expected (number of points 3D)", NULL);
    lp->nbr = (Index) myint;
/* FC printf("nbr %d\n",lp->nbr); */
    /* Allocation dynamique la liste de points. */

    if (lp->nbr == 0)
        lp->ptr = NULL;
    else if ((lp->ptr = (Point3f *) malloc (lp->nbr * sizeof (Point3f)))
        == NULL) {
    static const char   proc_name[] = "fscanf_Point3f_list";
        perror (proc_name);
        exit (1);
    }

    /* Lecture des points de la liste un a un.  */

    pp   = lp->ptr;
    pend = pp + lp->nbr;
    for (; pp < pend; pp++) {
        int t;

        if ((t = lex ()) != T_FLOAT && t != T_INT)
          lexerr ("start", err_tbl[0], "X", err_tbl[1], NULL);
/* FC printf("X %d %f\n",myint, myfloat); */
        pp->x = (t == T_INT) ? (float) myint : myfloat;

        if ((t = lex ()) != T_FLOAT && t != T_INT)
            lexerr ("start", err_tbl[0], "Y", err_tbl[1], NULL);
/* FC printf("Y %d %f\n",myint, myfloat); */
        pp->y = (t == T_INT) ? (float) myint : myfloat;

        if ((t = lex ()) != T_FLOAT && t != T_INT)
          lexerr ("start", err_tbl[0], "Z", err_tbl[1], NULL);
/* FC printf("Z %d %f\n",myint, myfloat); */
        pp->z = (t == T_INT) ? (float) myint : myfloat;
    }
}

#endif