1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
/*
* 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 *, const 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_ */
|
