1 /* 2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) 3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice including the dates of first publication and 13 * either this permission notice or a reference to 14 * http://oss.sgi.com/projects/FreeB/ 15 * shall be included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Except as contained in this notice, the name of Silicon Graphics, Inc. 26 * shall not be used in advertising or otherwise to promote the sale, use or 27 * other dealings in this Software without prior written authorization from 28 * Silicon Graphics, Inc. 29 */ 30 31 /* 32 * quilt.h 33 * 34 */ 35 36 #ifndef __gluquilt_h_ 37 #define __gluquilt_h_ 38 39 //#include "defines.h" 40 #include "bufpool.h" 41 #include "types.h" 42 43 class Backend; 44 class Mapdesc; 45 class Flist; 46 struct Knotvector; 47 48 /* constants for memory allocation of NURBS to Bezier conversion */ 49 #define MAXDIM 2 50 51 struct Quiltspec { /* a specification for a dimension of a quilt */ 52 int stride; /* words between points */ 53 int width; /* number of segments */ 54 int offset; /* words to first point */ 55 int order; /* order */ 56 int index; /* current segment number */ 57 int bdry[2]; /* boundary edge flag */ 58 REAL step_size; 59 Knot * breakpoints; 60 }; 61 62 typedef Quiltspec *Quiltspec_ptr; 63 64 class Quilt : public PooledObj { /* an array of bezier patches */ 65 public: 66 Quilt( Mapdesc * ); 67 Mapdesc * mapdesc; /* map descriptor */ 68 REAL * cpts; /* control points */ 69 Quiltspec qspec[MAXDIM]; /* the dimensional data */ 70 Quiltspec_ptr eqspec; /* qspec trailer */ 71 Quilt *next; /* next quilt in linked list */ 72 73 public: 74 void deleteMe( Pool& ); 75 void toBezier( Knotvector &, INREAL *, long ); 76 void toBezier( Knotvector &, Knotvector &, INREAL *, long ); 77 void select( REAL *, REAL * ); 78 int getDimension( void ) { return eqspec - qspec; } 79 void download( Backend & ); 80 void downloadAll( REAL *, REAL *, Backend & ); 81 int isCulled( void ); 82 void getRange( REAL *, REAL *, Flist&, Flist & ); 83 void getRange( REAL *, REAL *, int, Flist & ); 84 void getRange( REAL *, REAL *, Flist& ); 85 void findRates( Flist& slist, Flist& tlist, REAL[2] ); 86 void findSampleRates( Flist& slist, Flist& tlist ); 87 void show(); 88 }; 89 90 typedef class Quilt *Quilt_ptr; 91 92 #endif /* __gluquilt_h_ */ 93