[NTOS:KE] Fix 'Sert' typo, in a comment (#1929)
[reactos.git] / dll / opengl / glu32 / src / libnurbs / internals / reader.h
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
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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,
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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.
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29 */
30
31 /*
32 * reader.h
33 *
34 */
35
36 #ifndef __glureader_h_
37 #define __glureader_h_
38
39 #include "bufpool.h"
40 #include "types.h"
41
42 enum Curvetype { ct_nurbscurve, ct_pwlcurve, ct_none };
43
44 struct Property;
45 struct O_surface;
46 struct O_nurbssurface;
47 struct O_trim;
48 class O_pwlcurve;
49 struct O_nurbscurve;
50 struct O_curve;
51 class Quilt;
52 class TrimVertex;
53
54
55 struct O_curve : public PooledObj {
56 union {
57 O_nurbscurve *o_nurbscurve;
58 O_pwlcurve *o_pwlcurve;
59 } curve;
60 Curvetype curvetype; /* arc type: pwl or nurbs */
61 O_curve * next; /* next arc in loop */
62 O_surface * owner; /* owning surface */
63 int used; /* curve called in cur surf */
64 int save; /* 1 if in display list */
65 long nuid;
66 O_curve() { next = 0; used = 0; owner = 0;
67 curve.o_pwlcurve = 0; curvetype = ct_none; save = 0; nuid = 0; }
68 };
69
70 struct O_nurbscurve : public PooledObj {
71 Quilt *bezier_curves; /* array of bezier curves */
72 long type; /* range descriptor */
73 REAL tesselation; /* tesselation tolerance */
74 int method; /* tesselation method */
75 O_nurbscurve * next; /* next curve in list */
76 int used; /* curve called in cur surf */
77 int save; /* 1 if in display list */
78 O_curve * owner; /* owning curve */
79 O_nurbscurve( long _type )
80 { bezier_curves = 0; type = _type; tesselation = 0; method = 0; next = 0; used = 0; save = 0; owner = 0; }
81 };
82
83 class O_pwlcurve : public PooledObj {
84 public:
85 TrimVertex *pts; /* array of trim vertices */
86 int npts; /* number of trim vertices */
87 O_pwlcurve * next; /* next curve in list */
88 int used; /* curve called in cur surf */
89 int save; /* 1 if in display list */
90 O_curve * owner; /* owning curve */
91 O_pwlcurve( long, long, INREAL *, long, TrimVertex * );
92 };
93
94 struct O_trim : public PooledObj {
95 O_curve *o_curve; /* closed trim loop */
96 O_trim * next; /* next loop along trim */
97 int save; /* 1 if in display list */
98 O_trim() { next = 0; o_curve = 0; save = 0; }
99 };
100
101 struct O_nurbssurface : public PooledObj {
102 Quilt * bezier_patches;/* array of bezier patches */
103 long type; /* range descriptor */
104 O_surface * owner; /* owning surface */
105 O_nurbssurface * next; /* next surface in chain */
106 int save; /* 1 if in display list */
107 int used; /* 1 if prev called in block */
108 O_nurbssurface( long _type )
109 { bezier_patches = 0; type = _type; owner = 0; next = 0; save = 0; used = 0; }
110 };
111
112 struct O_surface : public PooledObj {
113 O_nurbssurface * o_nurbssurface; /* linked list of surfaces */
114 O_trim * o_trim; /* list of trim loops */
115 int save; /* 1 if in display list */
116 long nuid;
117 O_surface() { o_trim = 0; o_nurbssurface = 0; save = 0; nuid = 0; }
118 };
119
120 struct Property : public PooledObj {
121 long type;
122 long tag;
123 REAL value;
124 int save; /* 1 if in display list */
125 Property( long _type, long _tag, INREAL _value )
126 { type = _type; tag = _tag; value = (REAL) _value; save = 0; }
127 Property( long _tag, INREAL _value )
128 { type = 0; tag = _tag; value = (REAL) _value; save = 0; }
129 };
130
131 class NurbsTessellator;
132 #endif /* __glureader_h_ */