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/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
**
** http://oss.sgi.com/projects/FreeB
**
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
**
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
**
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
*/
/*
* nurbstess.h
*
*/
#ifndef __glunurbstess_h_
#define __glunurbstess_h_
#include "mysetjmp.h"
#include "subdivider.h"
#include "renderhints.h"
#include "backend.h"
#include "maplist.h"
#include "reader.h"
#include "nurbsconsts.h"
struct Knotvector;
class Quilt;
class DisplayList;
class BasicCurveEvaluator;
class BasicSurfaceEvaluator;
class NurbsTessellator {
public:
NurbsTessellator( BasicCurveEvaluator &c,
BasicSurfaceEvaluator &e );
virtual ~NurbsTessellator( void );
void getnurbsproperty( long, INREAL * );
void getnurbsproperty( long, long, INREAL * );
void setnurbsproperty( long, INREAL );
void setnurbsproperty( long, long, INREAL );
void setnurbsproperty( long, long, INREAL * );
void setnurbsproperty( long, long, INREAL *, long, long );
// called before a tessellation begins/ends
virtual void bgnrender( void );
virtual void endrender( void );
// called to make a display list of the output vertices
virtual void makeobj( int n );
virtual void closeobj( void );
// called when a error occurs
virtual void errorHandler( int );
void bgnsurface( long );
void endsurface( void );
void bgntrim( void );
void endtrim( void );
void bgncurve( long );
void endcurve( void );
void pwlcurve( long, INREAL[], long, long );
void nurbscurve( long, INREAL[], long, INREAL[], long, long );
void nurbssurface( long, INREAL[], long, INREAL[], long, long,
INREAL[], long, long, long );
void defineMap( long, long, long );
void redefineMaps( void );
// recording of input description
void discardRecording( void * );
void * beginRecording( void );
void endRecording( void );
void playRecording( void * );
//for optimizing untrimmed nurbs in the case of domain distance sampling
void set_domain_distance_u_rate(REAL u_rate);
void set_domain_distance_v_rate(REAL v_rate);
void set_is_domain_distance_sampling(int flag);
protected:
Renderhints renderhints;
Maplist maplist;
Backend backend;
private:
void resetObjects( void );
int do_check_knots( Knotvector *, char * );
void do_nurbserror( int );
void do_bgncurve( O_curve * );
void do_endcurve( void );
void do_freeall( void );
void do_freecurveall( O_curve * );
void do_freebgntrim( O_trim * );
void do_freebgncurve( O_curve * );
void do_freepwlcurve( O_pwlcurve * );
void do_freenurbscurve( O_nurbscurve * );
void do_freenurbssurface( O_nurbssurface * );
void do_freebgnsurface( O_surface * );
void do_bgnsurface( O_surface * );
void do_endsurface( void );
void do_bgntrim( O_trim * );
void do_endtrim( void );
void do_pwlcurve( O_pwlcurve * );
void do_nurbscurve( O_nurbscurve * );
void do_nurbssurface( O_nurbssurface * );
void do_freenurbsproperty( Property * );
void do_setnurbsproperty( Property * );
void do_setnurbsproperty2( Property * );
Subdivider subdivider;
JumpBuffer* jumpbuffer;
Pool o_pwlcurvePool;
Pool o_nurbscurvePool;
Pool o_curvePool;
Pool o_trimPool;
Pool o_surfacePool;
Pool o_nurbssurfacePool;
Pool propertyPool;
public:
Pool quiltPool;
private:
TrimVertexPool extTrimVertexPool;
int inSurface; /* bgnsurface seen */
int inCurve; /* bgncurve seen */
int inTrim; /* bgntrim seen */
int isCurveModified; /* curve changed */
int isTrimModified; /* trim curves changed */
int isSurfaceModified; /* surface changed */
int isDataValid; /* all data is good */
int numTrims; /* valid trim regions */
int playBack;
O_trim** nextTrim; /* place to link o_trim */
O_curve** nextCurve; /* place to link o_curve */
O_nurbscurve** nextNurbscurve; /* place to link o_nurbscurve */
O_pwlcurve** nextPwlcurve; /* place to link o_pwlcurve */
O_nurbssurface** nextNurbssurface; /* place to link o_nurbssurface */
O_surface* currentSurface;
O_trim* currentTrim;
O_curve* currentCurve;
DisplayList *dl;
};
#endif /* __glunurbstess_h_ */
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