/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */

/*
 *  reader.c++ - $Revision: 1.1.1.1 $
 * 	Derrick Burns - 1991
 */

#include "glimports.h"
#include "nurbsconsts.h"
#include "reader.h"
#include "trimvertex.h"

O_pwlcurve::O_pwlcurve( long _type, long count, INREAL *array, long byte_stride, TrimVertex *trimpts )
{
    next = 0;
    used = 0;
    owner = 0;
    pts = trimpts;
    npts = (int) count;

    /* copy user data into internal trimming data structures */
    switch( _type ) {
        case N_P2D: {
	    TrimVertex *v = pts;
    	    for( TrimVertex *lastv = v + count; v != lastv; v++ ) {
	        v->param[0] = (REAL) array[0];
	        v->param[1] = (REAL) array[1];
		array = (INREAL *) (((char *) array) + byte_stride);
	    }
	    break;
	}
        case N_P2DR: {
	    TrimVertex *v = pts;
    	    for( TrimVertex *lastv = v + count; v != lastv; v++ ) {
	        v->param[0] = (REAL) array[0] / (REAL) array[2];
	        v->param[1] = (REAL) array[1] / (REAL) array[2];
		array = (INREAL *) (((char *) array) + byte_stride);
	    }
	    break;
	}
    }
}
