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116 lines
3.8 KiB
116 lines
3.8 KiB
#ifndef __glureader_h_
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#define __glureader_h_
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/**************************************************************************
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* *
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* Copyright (C) 1992, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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/*
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* reader.h - $Revision: 1.1 $
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*/
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#include "bufpool.h"
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#include "types.h"
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enum Curvetype { ct_nurbscurve, ct_pwlcurve, ct_none };
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struct Property;
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struct O_surface;
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struct O_nurbssurface;
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struct O_trim;
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struct O_pwlcurve;
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struct O_nurbscurve;
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struct O_curve;
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class Quilt;
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class TrimVertex;
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struct O_curve : public PooledObj {
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union {
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O_nurbscurve *o_nurbscurve;
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O_pwlcurve *o_pwlcurve;
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} curve;
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Curvetype curvetype; /* arc type: pwl or nurbs */
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O_curve * next; /* next arc in loop */
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O_surface * owner; /* owning surface */
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int used; /* curve called in cur surf */
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int save; /* 1 if in display list */
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long nuid;
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O_curve() { next = 0; used = 0; owner = 0;
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curve.o_pwlcurve = 0; }
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};
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struct O_nurbscurve : public PooledObj {
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Quilt *bezier_curves; /* array of bezier curves */
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long type; /* range descriptor */
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REAL tesselation; /* tesselation tolerance */
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int method; /* tesselation method */
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O_nurbscurve * next; /* next curve in list */
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int used; /* curve called in cur surf */
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int save; /* 1 if in display list */
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O_curve * owner; /* owning curve */
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O_nurbscurve( long _type )
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{ type = _type; owner = 0; next = 0; used = 0; }
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};
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#ifdef NT
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struct O_pwlcurve : public PooledObj {
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#else
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class O_pwlcurve : public PooledObj {
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#endif
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public:
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TrimVertex *pts; /* array of trim vertices */
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int npts; /* number of trim vertices */
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O_pwlcurve * next; /* next curve in list */
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int used; /* curve called in cur surf */
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int save; /* 1 if in display list */
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O_curve * owner; /* owning curve */
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O_pwlcurve( long, long, INREAL *, long, TrimVertex * );
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};
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struct O_trim : public PooledObj {
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O_curve *o_curve; /* closed trim loop */
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O_trim * next; /* next loop along trim */
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int save; /* 1 if in display list */
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O_trim() { next = 0; o_curve = 0; }
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};
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struct O_nurbssurface : public PooledObj {
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Quilt * bezier_patches;/* array of bezier patches */
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long type; /* range descriptor */
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O_surface * owner; /* owning surface */
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O_nurbssurface * next; /* next surface in chain */
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int save; /* 1 if in display list */
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int used; /* 1 if prev called in block */
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O_nurbssurface( long _type )
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{ type = _type; owner = 0; next = 0; used = 0; }
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};
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struct O_surface : public PooledObj {
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O_nurbssurface * o_nurbssurface; /* linked list of surfaces */
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O_trim * o_trim; /* list of trim loops */
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int save; /* 1 if in display list */
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long nuid;
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O_surface() { o_trim = 0; o_nurbssurface = 0; }
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};
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struct Property : public PooledObj {
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long type;
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long tag;
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REAL value;
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int save; /* 1 if in display list */
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Property( long _type, long _tag, INREAL _value )
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{ type = _type; tag = _tag; value = (REAL) _value; }
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Property( long _tag, INREAL _value )
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{ type = 0; tag = _tag; value = (REAL) _value; }
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};
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class NurbsTessellator;
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#endif /* __glureader_h_ */
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