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34 * $Date: 2001/08/07 17:34:11 $ $Revision: 1.2 $
35 * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/reader.h,v 1.2 2001/08/07 17:34:11 brianp Exp $
38 #ifndef __glureader_h_
39 #define __glureader_h_
44 enum Curvetype
{ ct_nurbscurve
, ct_pwlcurve
, ct_none
};
48 struct O_nurbssurface
;
57 struct O_curve
: public PooledObj
{
59 O_nurbscurve
*o_nurbscurve
;
60 O_pwlcurve
*o_pwlcurve
;
62 Curvetype curvetype
; /* arc type: pwl or nurbs */
63 O_curve
* next
; /* next arc in loop */
64 O_surface
* owner
; /* owning surface */
65 int used
; /* curve called in cur surf */
66 int save
; /* 1 if in display list */
68 O_curve() { next
= 0; used
= 0; owner
= 0;
69 curve
.o_pwlcurve
= 0; }
72 struct O_nurbscurve
: public PooledObj
{
73 Quilt
*bezier_curves
; /* array of bezier curves */
74 long type
; /* range descriptor */
75 REAL tesselation
; /* tesselation tolerance */
76 int method
; /* tesselation method */
77 O_nurbscurve
* next
; /* next curve in list */
78 int used
; /* curve called in cur surf */
79 int save
; /* 1 if in display list */
80 O_curve
* owner
; /* owning curve */
81 O_nurbscurve( long _type
)
82 { type
= _type
; owner
= 0; next
= 0; used
= 0; }
85 class O_pwlcurve
: public PooledObj
{
87 TrimVertex
*pts
; /* array of trim vertices */
88 int npts
; /* number of trim vertices */
89 O_pwlcurve
* next
; /* next curve in list */
90 int used
; /* curve called in cur surf */
91 int save
; /* 1 if in display list */
92 O_curve
* owner
; /* owning curve */
93 O_pwlcurve( long, long, INREAL
*, long, TrimVertex
* );
96 struct O_trim
: public PooledObj
{
97 O_curve
*o_curve
; /* closed trim loop */
98 O_trim
* next
; /* next loop along trim */
99 int save
; /* 1 if in display list */
100 O_trim() { next
= 0; o_curve
= 0; }
103 struct O_nurbssurface
: public PooledObj
{
104 Quilt
* bezier_patches
;/* array of bezier patches */
105 long type
; /* range descriptor */
106 O_surface
* owner
; /* owning surface */
107 O_nurbssurface
* next
; /* next surface in chain */
108 int save
; /* 1 if in display list */
109 int used
; /* 1 if prev called in block */
110 O_nurbssurface( long _type
)
111 { type
= _type
; owner
= 0; next
= 0; used
= 0; }
114 struct O_surface
: public PooledObj
{
115 O_nurbssurface
* o_nurbssurface
; /* linked list of surfaces */
116 O_trim
* o_trim
; /* list of trim loops */
117 int save
; /* 1 if in display list */
119 O_surface() { o_trim
= 0; o_nurbssurface
= 0; }
122 struct Property
: public PooledObj
{
126 int save
; /* 1 if in display list */
127 Property( long _type
, long _tag
, INREAL _value
)
128 { type
= _type
; tag
= _tag
; value
= (REAL
) _value
; }
129 Property( long _tag
, INREAL _value
)
130 { type
= 0; tag
= _tag
; value
= (REAL
) _value
; }
133 class NurbsTessellator
;
134 #endif /* __glureader_h_ */