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#ifndef __glunurbstess_h_
#define __glunurbstess_h_
/**************************************************************************
* * * Copyright (C) 1992, Silicon Graphics, Inc. * * * * These coded instructions, statements, and computer programs contain * * unpublished proprietary information of Silicon Graphics, Inc., and * * are protected by Federal copyright law. They may not be disclosed * * to third parties or copied or duplicated in any form, in whole or * * in part, without the prior written consent of Silicon Graphics, Inc. * * * **************************************************************************/
/*
* nurbstess.h - $Revision: 1.2 $ */
#include "mysetjmp.h"
#include "subdivid.h"
#include "renderhi.h"
#include "backend.h"
#include "maplist.h"
#include "reader.h"
#include "nurbscon.h"
class Knotvector;class Quilt;class DisplayList;class BasicCurveEvaluator;class BasicSurfaceEvaluator;
class NurbsTessellator {public: NurbsTessellator( BasicCurveEvaluator &c, BasicSurfaceEvaluator &e ); ~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 * );
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; Pool quiltPool; 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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