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138 lines
4.9 KiB
C++
138 lines
4.9 KiB
C++
/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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*/
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/*
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* reader.h
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*
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* $Date$ $Revision: 1.1 $
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* $Header: /cygdrive/c/RCVS/CVS/ReactOS/reactos/lib/glu32/libnurbs/internals/reader.h,v 1.1 2004/02/02 16:39:12 navaraf Exp $
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*/
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#ifndef __glureader_h_
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#define __glureader_h_
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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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class 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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class O_pwlcurve : public PooledObj {
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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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