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Diffstat (limited to 'src/glu/sgi/libnurbs/internals/nurbstess.h')
| -rw-r--r-- | src/glu/sgi/libnurbs/internals/nurbstess.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/src/glu/sgi/libnurbs/internals/nurbstess.h b/src/glu/sgi/libnurbs/internals/nurbstess.h new file mode 100644 index 00000000000..3577088a9c2 --- /dev/null +++ b/src/glu/sgi/libnurbs/internals/nurbstess.h @@ -0,0 +1,176 @@ +/* +** 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_ */ |