diff options
Diffstat (limited to 'src/glu/sgi/libnurbs/internals/quilt.h')
| -rw-r--r-- | src/glu/sgi/libnurbs/internals/quilt.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/glu/sgi/libnurbs/internals/quilt.h b/src/glu/sgi/libnurbs/internals/quilt.h new file mode 100644 index 0000000000..0b0bf165af --- /dev/null +++ b/src/glu/sgi/libnurbs/internals/quilt.h @@ -0,0 +1,98 @@ +/* +** 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. +*/ + +/* + * quilt.h + * + * $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $ + * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/quilt.h,v 1.1 2001/03/17 00:25:41 brianp Exp $ + */ + +#ifndef __gluquilt_h_ +#define __gluquilt_h_ + +#include "defines.h" +#include "bufpool.h" +#include "types.h" + +class Backend; +class Mapdesc; +class Flist; +class Knotvector; + +/* constants for memory allocation of NURBS to Bezier conversion */ +#define MAXDIM 2 + +struct Quiltspec { /* a specification for a dimension of a quilt */ + int stride; /* words between points */ + int width; /* number of segments */ + int offset; /* words to first point */ + int order; /* order */ + int index; /* current segment number */ + int bdry[2]; /* boundary edge flag */ + REAL step_size; + Knot * breakpoints; +}; + +typedef Quiltspec *Quiltspec_ptr; + +class Quilt : public PooledObj { /* an array of bezier patches */ +public: + Quilt( Mapdesc * ); + Mapdesc * mapdesc; /* map descriptor */ + REAL * cpts; /* control points */ + Quiltspec qspec[MAXDIM]; /* the dimensional data */ + Quiltspec_ptr eqspec; /* qspec trailer */ + Quilt *next; /* next quilt in linked list */ + +public: + void deleteMe( Pool& ); + void toBezier( Knotvector &, INREAL *, long ); + void toBezier( Knotvector &, Knotvector &, INREAL *, long ); + void select( REAL *, REAL * ); + int getDimension( void ) { return eqspec - qspec; } + void download( Backend & ); + void downloadAll( REAL *, REAL *, Backend & ); + int isCulled( void ); + void getRange( REAL *, REAL *, Flist&, Flist & ); + void getRange( REAL *, REAL *, int, Flist & ); + void getRange( REAL *, REAL *, Flist& ); + void findRates( Flist& slist, Flist& tlist, REAL[2] ); + void findSampleRates( Flist& slist, Flist& tlist ); + void show(); +}; + +typedef class Quilt *Quilt_ptr; + +#endif /* __gluquilt_h_ */ |