windows-nt/Source/XPSP1/NT/multimedia/opengl/glu/libnurbs/slicer.c
2020-09-26 16:20:57 +08:00

698 lines
17 KiB
C

/*
** Copyright 1992, Silicon Graphics, Inc.
** All Rights Reserved.
**
** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
** the contents of this file may not be disclosed to third parties, copied or
** duplicated in any form, in whole or in part, without the prior written
** permission of Silicon Graphics, Inc.
**
** RESTRICTED RIGHTS LEGEND:
** Use, duplication or disclosure by the Government is subject to restrictions
** as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
** and Computer Software clause at DFARS 252.227-7013, and/or in similar or
** successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
** rights reserved under the Copyright Laws of the United States.
**
*/
#include <stdlib.h>
#include <setjmp.h>
struct JumpBuffer {
jmp_buf buf;
};
#define mysetjmp(x) setjmp((x)->buf)
#define mylongjmp(x,y) longjmp((x)->buf, y)
/* <<AT&T USL C++ Language System <3.0.1> 02/03/92>> */
/* < ../core/slicer.c++ > */
void *__vec_new (void *, int , int , void *);
void __vec_ct (void *, int , int , void *);
void __vec_dt (void *, int , int , void *);
void __vec_delete (void *, int , int , void *, int , int );
typedef int (*__vptp)(void);
struct __mptr {short d; short i; __vptp f; };
typedef unsigned int size_t ;
// extern void *malloc (size_t );
// extern void free (void *);
struct Buffer;
struct Buffer {
struct Buffer *next__6Buffer ;
};
struct Pool;
enum __Q2_4Pool5Magic { is_allocated__Q2_4Pool5Magic = 62369, is_free__Q2_4Pool5Magic = 61858} ;
struct Pool {
struct Buffer *freelist__4Pool ;
char *blocklist__4Pool [32];
int nextblock__4Pool ;
char *curblock__4Pool ;
int buffersize__4Pool ;
int nextsize__4Pool ;
int nextfree__4Pool ;
int initsize__4Pool ;
char *name__4Pool ;
int magic__4Pool ;
};
void __glgrow__4PoolFv (struct Pool *);
struct PooledObj;
struct PooledObj {
char __W3__9PooledObj ;
};
struct Arc;
struct Backend;
typedef float REAL ;
typedef void (*Pfvv )(void );
typedef void (*Pfvf )(float *);
typedef int (*cmpfunc )(void *, void *);
typedef REAL Knot ;
typedef REAL *Knot_ptr ;
struct TrimVertex;
struct TrimVertex {
REAL param__10TrimVertex [2];
long nuid__10TrimVertex ;
};
typedef struct TrimVertex *TrimVertex_p ;
struct PwlArc;
struct PwlArc {
char __W3__9PooledObj ;
struct TrimVertex *pts__6PwlArc ;
int npts__6PwlArc ;
long type__6PwlArc ;
};
struct Bin;
struct Arc;
struct BezierArc;
typedef struct Arc *Arc_ptr ;
enum arc_side { arc_none = 0, arc_right = 1, arc_top = 2, arc_left = 3, arc_bottom = 4} ;
struct Arc;
struct Arc {
char __W3__9PooledObj ;
Arc_ptr prev__3Arc ;
Arc_ptr next__3Arc ;
Arc_ptr link__3Arc ;
struct BezierArc *bezierArc__3Arc ;
struct PwlArc *pwlArc__3Arc ;
long type__3Arc ;
long nuid__3Arc ;
};
extern int __glbezier_tag__3Arc ;
extern int __glarc_tag__3Arc ;
extern int __gltail_tag__3Arc ;
struct Jarcloc;
struct Jarcloc {
struct Arc *arc__7Jarcloc ;
struct TrimVertex *p__7Jarcloc ;
struct TrimVertex *plast__7Jarcloc ;
};
struct Trimline;
struct Trimline {
struct TrimVertex **pts__8Trimline ;
long numverts__8Trimline ;
long i__8Trimline ;
long size__8Trimline ;
struct Jarcloc jarcl__8Trimline ;
struct TrimVertex t__8Trimline ;
struct TrimVertex b__8Trimline ;
struct TrimVertex *tinterp__8Trimline ;
struct TrimVertex *binterp__8Trimline ;
};
struct Gridline;
struct Gridline {
long v__8Gridline ;
REAL vval__8Gridline ;
long vindex__8Gridline ;
long ustart__8Gridline ;
long uend__8Gridline ;
};
struct Uarray;
struct Uarray {
long size__6Uarray ;
long ulines__6Uarray ;
REAL *uarray__6Uarray ;
};
struct Backend;
struct TrimRegion;
void __gl__dt__8TrimlineFv (struct Trimline *, int );
void __gl__dt__6UarrayFv (struct Uarray *, int );
struct TrimRegion {
struct Trimline left__10TrimRegion ;
struct Trimline right__10TrimRegion ;
struct Gridline top__10TrimRegion ;
struct Gridline bot__10TrimRegion ;
struct Uarray uarray__10TrimRegion ;
REAL oneOverDu__10TrimRegion ;
};
struct GridTrimVertex;
struct __Q2_4Hull4Side;
struct __Q2_4Hull4Side {
struct Trimline *left__Q2_4Hull4Side ;
struct Gridline *line__Q2_4Hull4Side ;
struct Trimline *right__Q2_4Hull4Side ;
long index__Q2_4Hull4Side ;
};
struct Hull;
struct Hull {
struct __Q2_4Hull4Side lower__4Hull ;
struct __Q2_4Hull4Side upper__4Hull ;
struct Trimline fakeleft__4Hull ;
struct Trimline fakeright__4Hull ;
struct TrimRegion *PTrimRegion;
struct TrimRegion OTrimRegion;
};
struct Backend;
struct GridTrimVertex;
struct Mesher;
struct Mesher {
struct __Q2_4Hull4Side lower__4Hull ;
struct __Q2_4Hull4Side upper__4Hull ;
struct Trimline fakeleft__4Hull ;
struct Trimline fakeright__4Hull ;
struct TrimRegion *PTrimRegion;
struct Backend *backend__6Mesher ;
struct Pool p__6Mesher ;
unsigned int stacksize__6Mesher ;
struct GridTrimVertex **vdata__6Mesher ;
struct GridTrimVertex *last__6Mesher [2];
int itop__6Mesher ;
int lastedge__6Mesher ;
struct TrimRegion OTrimRegion;
};
extern float __glZERO__6Mesher ;
struct Backend;
struct GridVertex;
struct GridTrimVertex;
struct CoveAndTiler;
struct CoveAndTiler {
struct Backend *backend__12CoveAndTiler ;
struct TrimRegion *PTrimRegion;
struct TrimRegion OTrimRegion;
};
extern int __glMAXSTRIPSIZE__12CoveAndTil0 ;
struct Backend;
struct Slicer;
struct Slicer {
struct Backend *backend__12CoveAndTiler ;
struct TrimRegion *PTrimRegion;
struct Mesher OMesher;
struct Backend *backend__6Slicer ;
REAL oneOverDu__6Slicer ;
REAL du__6Slicer ;
REAL dv__6Slicer ;
int isolines__6Slicer ;
};
struct GridVertex;
struct GridVertex {
long gparam__10GridVertex [2];
};
struct GridTrimVertex;
struct GridTrimVertex {
char __W3__9PooledObj ;
struct TrimVertex dummyt__14GridTrimVertex ;
struct GridVertex dummyg__14GridTrimVertex ;
struct TrimVertex *t__14GridTrimVertex ;
struct GridVertex *g__14GridTrimVertex ;
};
typedef struct GridTrimVertex *GridTrimVertex_p ;
struct BasicCurveEvaluator;
struct BasicSurfaceEvaluator;
struct Backend;
struct Backend {
struct BasicCurveEvaluator *curveEvaluator__7Backend ;
struct BasicSurfaceEvaluator *surfaceEvaluator__7Backend ;
int wireframetris__7Backend ;
int wireframequads__7Backend ;
int npts__7Backend ;
REAL mesh__7Backend [3][4];
int meshindex__7Backend ;
};
struct Varray;
struct Varray {
REAL *varray__6Varray ;
REAL vval__6Varray [1000];
long voffset__6Varray [1000];
long numquads__6Varray ;
long size__6Varray ;
};
struct Mesher *__gl__ct__6MesherFR7Backend (struct Mesher *, struct TrimRegion *, struct Backend *);
struct CoveAndTiler *__gl__ct__12CoveAndTilerFR7Bac0 (struct CoveAndTiler *, struct TrimRegion *, struct Backend *);
struct TrimRegion *__gl__ct__10TrimRegionFv (struct TrimRegion *);
extern struct __mptr* __ptbl_vec_____core_slicer_c_____ct_[];
struct Slicer *__gl__ct__6SlicerFR7Backend (struct Slicer *__0this , struct TrimRegion *__0TrimRegion , struct Backend *__1b )
{
void *__1__Xp00uzigaiaa ;
if (__0this || (__0this = (struct Slicer *)( (__1__Xp00uzigaiaa = malloc ( (sizeof (struct Slicer))) ), (__1__Xp00uzigaiaa ?(((void *)__1__Xp00uzigaiaa )):(((void *)__1__Xp00uzigaiaa )))) ))(
( ( ((__0TrimRegion == 0 )?( (__0TrimRegion = (((struct TrimRegion *)((((char *)__0this ))+ 356)))), __gl__ct__10TrimRegionFv ( ((struct TrimRegion *)((((char *)__0this ))+ 356)))
) :__0TrimRegion ), __gl__ct__12CoveAndTilerFR7Bac0 ( ((struct CoveAndTiler *)__0this ), __0TrimRegion , __1b ) ) , __gl__ct__6MesherFR7Backend ( ((struct Mesher *)((((char *)__0this ))+ 8)),
__0TrimRegion , __1b ) ) , (__0this -> backend__6Slicer = __1b )) ;
return __0this ;
}
void __gl__dt__12CoveAndTilerFv (struct CoveAndTiler *, int );
void __gl__dt__6MesherFv (struct Mesher *, int );
void __gl__dt__6SlicerFv (struct Slicer *__0this ,
int __0__free )
{ if (__0this )
if (__0this ){ ( __gl__dt__6MesherFv ( ((struct Mesher *)((((char *)__0this ))+ 8)),
0 ) , ( __gl__dt__12CoveAndTilerFv ( ((struct CoveAndTiler *)__0this ), 0 ) , ((__0__free & 2)?( (((void )( ((((struct TrimRegion *)((((char
*)__0this ))+ 356)))?( ((((struct TrimRegion *)((((char *)__0this ))+ 356)))?( ( __gl__dt__6UarrayFv ( (struct Uarray *)(& (((struct TrimRegion *)((((char *)__0this ))+ 356)))->
uarray__10TrimRegion ), 2) , ( __gl__dt__8TrimlineFv ( (struct Trimline *)(& (((struct TrimRegion *)((((char *)__0this ))+ 356)))-> right__10TrimRegion ), 2) ,
( __gl__dt__8TrimlineFv ( (struct Trimline *)(& (((struct TrimRegion *)((((char *)__0this ))+ 356)))-> left__10TrimRegion ), 2) , (( 0 ) ))
) ) , 0 ) :( 0 ) ), 0 ) :( 0 ) )) )), 0 ) :0 ))
) ;
if (__0__free & 1)( (((void *)__0this )?( free ( ((void *)__0this )) , 0 ) :( 0 ) )) ;
} }
void __glsetisolines__6SlicerFi (struct Slicer *__0this , int __1x )
{
__0this -> isolines__6Slicer = __1x ;
}
void __glsetDu__10TrimRegionFf (struct TrimRegion *, REAL );
void __glsetstriptessellation__6Sli0 (struct Slicer *__0this , REAL __1x , REAL __1y )
{
((void )0 );
__0this -> du__6Slicer = __1x ;
__0this -> dv__6Slicer = __1y ;
__glsetDu__10TrimRegionFf ( (struct TrimRegion *)__0this -> PTrimRegion, __0this -> du__6Slicer ) ;
}
void __glmarkverts__3ArcFv (struct Arc *);
void __glgetextrema__3ArcFPP3Arc (struct Arc *, Arc_ptr *);
int __glnumpts__3ArcFv (struct Arc *);
void __glinit__6MesherFUi (struct Mesher *, unsigned int );
void __glinit__4HullFv (struct Hull *);
void __glinit__10TrimRegionFlP3Arc (struct TrimRegion *, long , struct Arc *);
long __glinit__6UarrayFfP3ArcT2 (struct Uarray *, REAL , struct Arc *, struct Arc *);
struct Varray *__gl__ct__6VarrayFv (struct Varray *);
long __glinit__6VarrayFfP3ArcT2 (struct Varray *, REAL , struct Arc *, struct Arc *);
void __glgetGridExtent__10TrimRegio1 (struct TrimRegion *, struct TrimVertex *, struct TrimVertex *);
void __glsurfgrid__7BackendFfT1lN210 (struct Backend *, REAL , REAL , long , REAL , REAL , long );
void __glgetPts__10TrimRegionFP3Arc (struct TrimRegion *, struct Arc *);
void __glgetPts__10TrimRegionFR7Bac0 (struct TrimRegion *, struct Backend *);
void __glgetGridExtent__10TrimRegio0 (struct TrimRegion *);
void __gloutline__6SlicerFv (struct Slicer *);
int __glcanTile__10TrimRegionFv (struct TrimRegion *);
void __glcoveAndTile__12CoveAndTile0 (struct CoveAndTiler *);
void __glmesh__6MesherFv (struct Mesher *);
void __gl__dt__6VarrayFv (struct Varray *, int );
void __glslice__6SlicerFP3Arc (struct Slicer *__0this , Arc_ptr __1loop )
{
__glmarkverts__3ArcFv ( (struct Arc *)__1loop ) ;
{ Arc_ptr __1extrema [4];
__glgetextrema__3ArcFPP3Arc ( (struct Arc *)__1loop , (struct Arc **)__1extrema ) ;
{ unsigned int __1npts ;
__1npts = __glnumpts__3ArcFv ( (struct Arc *)__1loop ) ;
__glinit__10TrimRegionFlP3Arc ( (struct TrimRegion *)__0this -> PTrimRegion, (long )__1npts , __1extrema [0 ]) ;
__glinit__6MesherFUi ( (struct Mesher *)(&(__0this -> OMesher)), __1npts ) ;
{ long __1ulines ;
struct Varray __1varray ;
long __1vlines ;
long __1botv ;
long __1topv ;
__1ulines = __glinit__6UarrayFfP3ArcT2 ( (struct Uarray *)(& __0this -> PTrimRegion-> uarray__10TrimRegion ), __0this -> du__6Slicer , __1extrema [1 ], __1extrema [3 ]) ;
__gl__ct__6VarrayFv ( (struct Varray *)(& __1varray )) ;
__1vlines = __glinit__6VarrayFfP3ArcT2 ( (struct Varray *)(& __1varray ), __0this -> dv__6Slicer , __1extrema [0 ], __1extrema [2 ]) ;
__1botv = 0 ;
( (((struct TrimRegion *)__0this -> PTrimRegion)-> bot__10TrimRegion . vval__8Gridline = (__1varray . varray__6Varray [__1botv ]))) ;
__glgetGridExtent__10TrimRegio1 ( (struct TrimRegion *)__0this -> PTrimRegion, & ((__1extrema [0 ])-> pwlArc__3Arc -> pts__6PwlArc [0 ]), & ((__1extrema [0 ])-> pwlArc__3Arc -> pts__6PwlArc [0 ])) ;
{ { long __1quad ;
__1quad = 0 ;
for(;__1quad < __1varray . numquads__6Varray ;__1quad ++ ) {
__glsurfgrid__7BackendFfT1lN210 ( (struct Backend *)__0this -> backend__6Slicer , __0this -> PTrimRegion-> uarray__10TrimRegion . uarray__6Uarray [0 ], __0this ->
PTrimRegion-> uarray__10TrimRegion . uarray__6Uarray [(__1ulines - 1 )], __1ulines - 1 , __1varray . vval__6Varray [__1quad ], __1varray . vval__6Varray [(__1quad + 1 )], (__1varray . voffset__6Varray [(__1quad + 1 )])-
(__1varray . voffset__6Varray [__1quad ])) ;
{ { long __2i ;
__2i = ((__1varray . voffset__6Varray [__1quad ])+ 1 );
for(;__2i <= (__1varray . voffset__6Varray [(__1quad + 1 )]);__2i ++ ) {
__1topv = (__1botv ++ );
( (((struct TrimRegion *)__0this -> PTrimRegion)-> top__10TrimRegion . vindex__8Gridline = ((float )(__1topv - (__1varray . voffset__6Varray [__1quad ])))), ( (((struct TrimRegion *)__0this -> PTrimRegion)->
bot__10TrimRegion . vindex__8Gridline = ((float )(__1botv - (__1varray . voffset__6Varray [__1quad ])))), ( (((struct TrimRegion *)__0this -> PTrimRegion)-> top__10TrimRegion . vval__8Gridline = ((struct TrimRegion *)__0this ->
PTrimRegion)-> bot__10TrimRegion . vval__8Gridline ), ( (((struct TrimRegion *)__0this -> PTrimRegion)-> bot__10TrimRegion . vval__8Gridline = (__1varray . varray__6Varray [__1botv ])), ( (((struct TrimRegion *)__0this ->
PTrimRegion)-> top__10TrimRegion . ustart__8Gridline = ((struct TrimRegion *)__0this -> PTrimRegion)-> bot__10TrimRegion . ustart__8Gridline ), (((struct TrimRegion *)__0this -> PTrimRegion)-> top__10TrimRegion . uend__8Gridline = ((struct
TrimRegion *)__0this -> PTrimRegion)-> bot__10TrimRegion . uend__8Gridline )) ) ) ) ) ;
if (__2i == __1vlines )
__glgetPts__10TrimRegionFP3Arc ( (struct TrimRegion *)__0this -> PTrimRegion, __1extrema [2 ]) ;
else
__glgetPts__10TrimRegionFR7Bac0 ( (struct TrimRegion *)__0this -> PTrimRegion, __0this -> backend__6Slicer ) ;
__glgetGridExtent__10TrimRegio0 ( (struct TrimRegion *)__0this -> PTrimRegion) ;
if (__0this -> isolines__6Slicer ){
__gloutline__6SlicerFv ( __0this ) ;
}
else
{
if (__glcanTile__10TrimRegionFv ( (struct TrimRegion *)__0this -> PTrimRegion) )
__glcoveAndTile__12CoveAndTile0 ( (struct CoveAndTiler *)__0this ) ;
else
__glmesh__6MesherFv ( (struct Mesher *)(&(__0this -> OMesher))) ;
}
}
}
}
}
}
}
__gl__dt__6VarrayFv ( (struct Varray *)(& __1varray ), 2) ;
}
}
}
}
void __glbgnoutline__7BackendFv (struct Backend *);
struct GridTrimVertex *__glnextupper__4HullFP14GridTr0 (struct Hull *, struct GridTrimVertex *);
void __gllinevert__7BackendFP10Grid0 (struct Backend *, struct GridVertex *);
void __gllinevert__7BackendFP10Trim0 (struct Backend *, struct TrimVertex *);
void __glendoutline__7BackendFv (struct Backend *);
struct GridTrimVertex *__glnextlower__4HullFP14GridTr0 (struct Hull *, struct GridTrimVertex *);
void __gloutline__6SlicerFv (struct Slicer *__0this )
{
struct GridTrimVertex __1upper ;
struct GridTrimVertex __1lower ;
void *__1__Xp00uzigaiaa ;
( ( (0 ), ((((struct GridVertex *)(& ((struct GridTrimVertex *)(& __1upper ))-> dummyg__14GridTrimVertex ))))) , ( (((struct GridTrimVertex *)(& __1upper ))->
g__14GridTrimVertex = 0 ), ( (((struct GridTrimVertex *)(& __1upper ))-> t__14GridTrimVertex = 0 ), ((((struct GridTrimVertex *)(& __1upper ))))) ) ) ;
( ( (0 ), ((((struct GridVertex *)(& ((struct GridTrimVertex *)(& __1lower ))-> dummyg__14GridTrimVertex ))))) , ( (((struct GridTrimVertex *)(& __1lower ))->
g__14GridTrimVertex = 0 ), ( (((struct GridTrimVertex *)(& __1lower ))-> t__14GridTrimVertex = 0 ), ((((struct GridTrimVertex *)(& __1lower ))))) ) ) ;
__glinit__4HullFv ( (struct Hull *)(&(__0this -> OMesher))) ;
__glbgnoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
while (__glnextupper__4HullFP14GridTr0 ( (struct Hull *)(&(__0this -> OMesher)), & __1upper ) ){
if (( (((struct GridTrimVertex *)(& __1upper ))-> g__14GridTrimVertex ?1 :0 ))
)
__gllinevert__7BackendFP10Grid0 ( (struct Backend *)__0this -> backend__6Slicer , __1upper . g__14GridTrimVertex ) ;
else
__gllinevert__7BackendFP10Trim0 ( (struct Backend *)__0this -> backend__6Slicer , __1upper . t__14GridTrimVertex ) ;
}
__glendoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
__glbgnoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
while (__glnextlower__4HullFP14GridTr0 ( (struct Hull *)(&(__0this -> OMesher)), & __1lower ) ){
if (( (((struct GridTrimVertex *)(& __1lower ))-> g__14GridTrimVertex ?1 :0 ))
)
__gllinevert__7BackendFP10Grid0 ( (struct Backend *)__0this -> backend__6Slicer , __1lower . g__14GridTrimVertex ) ;
else
__gllinevert__7BackendFP10Trim0 ( (struct Backend *)__0this -> backend__6Slicer , __1lower . t__14GridTrimVertex ) ;
}
__glendoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
((void )( (( (( ( (((void )( ((((struct PooledObj *)((struct GridTrimVertex *)(& __1lower ))))?( ((((struct PooledObj *)((struct GridTrimVertex *)(&
__1lower ))))?( (( 0 ) ), 0 ) :( 0 ) ), 0 ) :( 0 ) )) )), ((
0 ) )) , 0 ) ), 0 ) )) );
((void )( (( (( ( (((void )( ((((struct PooledObj *)((struct GridTrimVertex *)(& __1upper ))))?( ((((struct PooledObj *)((struct GridTrimVertex *)(&
__1upper ))))?( (( 0 ) ), 0 ) :( 0 ) ), 0 ) :( 0 ) )) )), ((
0 ) )) , 0 ) ), 0 ) )) );
}
void __gloutline__6SlicerFP3Arc (struct Slicer *__0this , Arc_ptr __1jarc )
{
__glmarkverts__3ArcFv ( (struct Arc *)__1jarc ) ;
if (__1jarc -> pwlArc__3Arc -> npts__6PwlArc >= 2 ){
__glbgnoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
{ { int __2j ;
__2j = (__1jarc -> pwlArc__3Arc -> npts__6PwlArc - 1 );
for(;__2j >= 0 ;__2j -- )
__gllinevert__7BackendFP10Trim0 ( (struct Backend *)__0this -> backend__6Slicer , & (__1jarc -> pwlArc__3Arc -> pts__6PwlArc [__2j ])) ;
__glendoutline__7BackendFv ( (struct Backend *)__0this -> backend__6Slicer ) ;
}
}
}
}
/* the end */