/* ** 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 ** ** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.; ** the contents of this file may not be disclosed to third parties, copied or ** duplicated in any form, in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 Unpublished - ** rights reserved under the Copyright Laws of the United States.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 struct JumpBuffer { jmp_buf buf; }; #define mysetjmp(x) setjmp((x)->buf) #define mylongjmp(x,y) longjmp((x)->buf, y) /* < 02/03/92>> */ /* < ../core/monotonizer.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 ; }; 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 PwlArc; struct PwlArc { char __W3__9PooledObj ; struct TrimVertex *pts__6PwlArc ; int npts__6PwlArc ; long type__6PwlArc ; }; struct TrimVertex; struct TrimVertex { REAL param__10TrimVertex [2]; long nuid__10TrimVertex ; }; typedef struct TrimVertex *TrimVertex_p ; 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 BezierArc; struct TrimVertexPool; struct ArcTessellator; struct ArcTessellator { struct Pool *pwlarcpool__14ArcTessellator ; struct TrimVertexPool *trimvertexpool__14ArcTessellator ; }; extern REAL __glgl_Bernstein__14ArcTessell0 [][24][24]; struct Mapdesc; struct BezierArc; struct BezierArc { char __W3__9PooledObj ; REAL *cpts__9BezierArc ; int order__9BezierArc ; int stride__9BezierArc ; long type__9BezierArc ; struct Mapdesc *mapdesc__9BezierArc ; }; struct Bin; struct Bin { struct Arc *head__3Bin ; struct Arc *current__3Bin ; }; typedef REAL Maxmatrix [5][5]; struct Backend; struct Mapdesc; struct Mapdesc { char __W3__9PooledObj ; REAL pixel_tolerance__7Mapdesc ; REAL clampfactor__7Mapdesc ; REAL minsavings__7Mapdesc ; REAL maxrate__7Mapdesc ; REAL maxsrate__7Mapdesc ; REAL maxtrate__7Mapdesc ; REAL bboxsize__7Mapdesc [5]; long type__7Mapdesc ; int isrational__7Mapdesc ; int ncoords__7Mapdesc ; int hcoords__7Mapdesc ; int inhcoords__7Mapdesc ; int mask__7Mapdesc ; Maxmatrix bmat__7Mapdesc ; Maxmatrix cmat__7Mapdesc ; Maxmatrix smat__7Mapdesc ; REAL s_steps__7Mapdesc ; REAL t_steps__7Mapdesc ; REAL sampling_method__7Mapdesc ; REAL culling_method__7Mapdesc ; REAL bbox_subdividing__7Mapdesc ; struct Mapdesc *next__7Mapdesc ; struct Backend *backend__7Mapdesc ; }; void __glcopy__7MapdescSFPA5_flPfN20 (REAL (*)[5], long , float *, long , long ); void __glxformRational__7MapdescFPA0 (struct Mapdesc *, REAL (*)[5], REAL *, REAL *); void __glxformNonrational__7Mapdesc0 (struct Mapdesc *, REAL (*)[5], REAL *, REAL *); struct JumpBuffer; struct Sorter; struct Sorter { int es__6Sorter ; struct __mptr *__vptr__6Sorter ; }; struct FlistSorter; struct FlistSorter { int es__6Sorter ; struct __mptr *__vptr__6Sorter ; }; struct Flist; struct Flist { REAL *pts__5Flist ; int npts__5Flist ; int start__5Flist ; int end__5Flist ; struct FlistSorter sorter__5Flist ; }; struct Backend; 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 TrimVertexPool; struct TrimVertexPool { struct Pool pool__14TrimVertexPool ; struct TrimVertex **vlist__14TrimVertexPool ; int nextvlistslot__14TrimVertexPool ; int vlistsize__14TrimVertexPool ; }; struct Renderhints; struct Backend; struct Quilt; struct Patchlist; struct Curvelist; struct JumpBuffer; struct Subdivider; enum __Q2_10Subdivider3dir { down__Q2_10Subdivider3dir = 0, same__Q2_10Subdivider3dir = 1, up__Q2_10Subdivider3dir = 2, none__Q2_10Subdivider3dir = 3} ; struct Subdivider { struct Slicer slicer__10Subdivider ; struct ArcTessellator arctessellator__10Subdivider ; struct Pool arcpool__10Subdivider ; struct Pool bezierarcpool__10Subdivider ; struct Pool pwlarcpool__10Subdivider ; struct TrimVertexPool trimvertexpool__10Subdivider ; struct JumpBuffer *jumpbuffer__10Subdivider ; struct Renderhints *renderhints__10Subdivider ; struct Backend *backend__10Subdivider ; struct Bin initialbin__10Subdivider ; struct Arc *pjarc__10Subdivider ; int s_index__10Subdivider ; int t_index__10Subdivider ; struct Quilt *qlist__10Subdivider ; struct Flist spbrkpts__10Subdivider ; struct Flist tpbrkpts__10Subdivider ; struct Flist smbrkpts__10Subdivider ; struct Flist tmbrkpts__10Subdivider ; REAL stepsizes__10Subdivider [4]; int showDegenerate__10Subdivider ; int isArcTypeBezier__10Subdivider ; }; void __gltessellate__10SubdividerFP0 (struct Subdivider *, struct Arc *, REAL ); int __glisDisconnected__3ArcFv (struct Arc *); void __glmonotonize__10SubdividerFP0 (struct Subdivider *, struct Arc *, struct Bin *); extern struct __mptr* __ptbl_vec_____core_monotonizer_c___decompose_[]; int __gldecompose__10SubdividerFR30 (struct Subdivider *__0this , struct Bin *__1bin , REAL __1geo_stepsize ) { { { Arc_ptr __1jarc ; struct Arc *__1__Xjarc002hmkaiid ; __1jarc = ( (((struct Bin *)__1bin )-> current__3Bin = ((struct Bin *)__1bin )-> head__3Bin ), ( (__1__Xjarc002hmkaiid = ((struct Bin *)__1bin )-> current__3Bin ), ( (__1__Xjarc002hmkaiid ?( (((struct Bin *)__1bin )-> current__3Bin = __1__Xjarc002hmkaiid -> link__3Arc ), 0 ) :( 0 ) ), __1__Xjarc002hmkaiid ) ) ) ; for(;__1jarc ;__1jarc = ( (__1__Xjarc002hmkaiid = ((struct Bin *)__1bin )-> current__3Bin ), ( (__1__Xjarc002hmkaiid ?( (((struct Bin *)__1bin )-> current__3Bin = __1__Xjarc002hmkaiid -> link__3Arc ), 0 ) :( 0 ) ), __1__Xjarc002hmkaiid ) ) ) { if (! ( (((struct Arc *)__1jarc )-> pwlArc__3Arc ?1 :0 )) ){ __gltessellate__10SubdividerFP0 ( __0this , __1jarc , __1geo_stepsize ) ; if (__glisDisconnected__3ArcFv ( (struct Arc *)__1jarc ) || __glisDisconnected__3ArcFv ( (struct Arc *)__1jarc -> next__3Arc ) ) return 1 ; } } for(__1jarc = ( (((struct Bin *)__1bin )-> current__3Bin = ((struct Bin *)__1bin )-> head__3Bin ), ( (__1__Xjarc002hmkaiid = ((struct Bin *)__1bin )-> current__3Bin ), ( (__1__Xjarc002hmkaiid ?( (((struct Bin *)__1bin )-> current__3Bin = __1__Xjarc002hmkaiid -> link__3Arc ), 0 ) :( 0 ) ), __1__Xjarc002hmkaiid ) ) ) ;__1jarc ;__1jarc = ( (__1__Xjarc002hmkaiid = ((struct Bin *)__1bin )-> current__3Bin ), ( (__1__Xjarc002hmkaiid ?( (((struct Bin *)__1bin )-> current__3Bin = __1__Xjarc002hmkaiid -> link__3Arc ), 0 ) :( 0 ) ), __1__Xjarc002hmkaiid ) ) ) { __glmonotonize__10SubdividerFP0 ( __0this , __1jarc , __1bin ) ; } return 0 ; } } } REAL __glcalcVelocityRational__7Map0 (struct Mapdesc *, REAL *, int , int ); void __gltessellateNonlizNear__14Arc0 (struct ArcTessellator *, struct Arc *, REAL , REAL , int ); void __gltessellateLizNear__14ArcTes0 (struct ArcTessellator *, struct Arc *, REAL , REAL , int ); REAL __glcalcVelocityNonrational__70 (struct Mapdesc *, REAL *, int , int ); void __gltessellate__10SubdividerFP0 (struct Subdivider *__0this , Arc_ptr __1jarc , REAL __1geo_stepsize ) { struct BezierArc *__1b ; struct Mapdesc *__1mapdesc ; __1b = __1jarc -> bezierArc__3Arc ; __1mapdesc = __1b -> mapdesc__9BezierArc ; if (( (((struct Mapdesc *)__1mapdesc )-> isrational__7Mapdesc ?1 :0 )) ){ REAL __2max ; REAL __2arc_stepsize ; __2max = __glcalcVelocityRational__7Map0 ( (struct Mapdesc *)__1mapdesc , __1b -> cpts__9BezierArc , __1b -> stride__9BezierArc , __1b -> order__9BezierArc ) ; __2arc_stepsize = ((__2max > 1.0 )?(1.0 / __2max ):1.0 ); if (__1jarc -> bezierArc__3Arc -> order__9BezierArc != 2 ) __gltessellateNonlizNear__14Arc0 ( (struct ArcTessellator *)(& __0this -> arctessellator__10Subdivider ), __1jarc , __1geo_stepsize , __2arc_stepsize , 1 ) ; else { __gltessellateLizNear__14ArcTes0 ( (struct ArcTessellator *)(& __0this -> arctessellator__10Subdivider ), __1jarc , __1geo_stepsize , __2arc_stepsize , 1 ) ; } } else { REAL __2max ; REAL __2arc_stepsize ; __2max = __glcalcVelocityNonrational__70 ( (struct Mapdesc *)__1mapdesc , __1b -> cpts__9BezierArc , __1b -> stride__9BezierArc , __1b -> order__9BezierArc ) ; __2arc_stepsize = ((__2max > 1.0 )?(1.0 / __2max ):1.0 ); if (__1jarc -> bezierArc__3Arc -> order__9BezierArc != 2 ) __gltessellateNonlizNear__14Arc0 ( (struct ArcTessellator *)(& __0this -> arctessellator__10Subdivider ), __1jarc , __1geo_stepsize , __2arc_stepsize , 0 ) ; else { __gltessellateLizNear__14ArcTes0 ( (struct ArcTessellator *)(& __0this -> arctessellator__10Subdivider ), __1jarc , __1geo_stepsize , __2arc_stepsize , 0 ) ; } } } Arc_ptr __glappend__3ArcFP3Arc (struct Arc *, Arc_ptr ); void __glremove_this_arc__3BinFP3Ar0 (struct Bin *, struct Arc *); void __glmonotonize__10SubdividerFP0 (struct Subdivider *__0this , Arc_ptr __1jarc , struct Bin *__1bin ) { struct TrimVertex *__1firstvert ; struct TrimVertex *__1lastvert ; long __1uid ; int __1side ; int __1sdir ; int __1tdir ; int __1degenerate ; int __1nudegenerate ; int __1change ; __1firstvert = __1jarc -> pwlArc__3Arc -> pts__6PwlArc ; __1lastvert = (__1firstvert + (__1jarc -> pwlArc__3Arc -> npts__6PwlArc - 1 )); __1uid = __1jarc -> nuid__3Arc ; __1side = ( (((int )((((struct Arc *)__1jarc )-> type__3Arc >> 8 )& 0x7 )))) ; __1sdir = 3; __1tdir = 3; __1degenerate = 1 ; { { struct TrimVertex *__1vert ; __1vert = __1firstvert ; for(;__1vert != __1lastvert ;__1vert ++ ) { __1nudegenerate = 1 ; __1change = 0 ; { REAL __2sdiff ; __2sdiff = (((__1vert [1 ]). param__10TrimVertex [0 ])- ((__1vert [0 ]). param__10TrimVertex [0 ])); if (__2sdiff == 0 ){ if (__1sdir != 1){ __1sdir = 1; __1change = 1 ; } } else if (__2sdiff < 0.0 ){ if (__1sdir != 0){ __1sdir = 0; __1change = 1 ; } __1nudegenerate = 0 ; } else { if (__1sdir != 2){ __1sdir = 2; __1change = 1 ; } __1nudegenerate = 0 ; } { REAL __2tdiff ; __2tdiff = (((__1vert [1 ]). param__10TrimVertex [1 ])- ((__1vert [0 ]). param__10TrimVertex [1 ])); if (__2tdiff == 0 ){ if (__1tdir != 1){ __1tdir = 1; __1change = 1 ; } } else if (__2tdiff < 0.0 ){ if (__1tdir != 0){ __1tdir = 0; __1change = 1 ; } __1nudegenerate = 0 ; } else { if (__1tdir != 2){ __1tdir = 2; __1change = 1 ; } __1nudegenerate = 0 ; } if (__1change ){ if (! __1degenerate ){ struct Arc *__0__X13 ; void *__1__Xbuffer00azhgaiaa ; struct PwlArc *__0__X14 ; __1jarc -> pwlArc__3Arc -> npts__6PwlArc = ((__1vert - __1firstvert )+ 1 ); __1jarc = __glappend__3ArcFP3Arc ( (struct Arc *)((__0__X13 = (struct Arc *)( (((void *)( (((void )0 )), ( (((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool ?( ( (__1__Xbuffer00azhgaiaa = (((void *)((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool ))), (((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool = ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool -> next__6Buffer )) , 0 ) :( ( ((! ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> nextfree__4Pool )?( __glgrow__4PoolFv ( ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))) , 0 ) :( 0 ) ), ( (((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> nextfree__4Pool -= ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> buffersize__4Pool ), ( (__1__Xbuffer00azhgaiaa = (((void *)(((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> curblock__4Pool + ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> nextfree__4Pool ))))) ) ) , 0 ) ), (((void *)__1__Xbuffer00azhgaiaa ))) ) ))) )?( (((struct Arc *)__0__X13 )-> bezierArc__3Arc = 0 ), ( (((struct Arc *)__0__X13 )-> pwlArc__3Arc = 0 ), ( (((struct Arc *)__0__X13 )-> type__3Arc = 0 ), ( ( ( (((struct Arc *)__0__X13 )-> type__3Arc &= -1793)) , (((struct Arc *)__0__X13 )-> type__3Arc |= ((((long )__1side ))<< 8 ))) , ( (((struct Arc *)__0__X13 )-> nuid__3Arc = __1uid ), ((((struct Arc *)__0__X13 )))) ) ) ) ) :0 ), __1jarc ) ; __1jarc -> pwlArc__3Arc = ((__0__X14 = (struct PwlArc *)( (((void *)( (((void )0 )), ( (((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool ?( ( (__1__Xbuffer00azhgaiaa = (((void *)((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool ))), (((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool = ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool -> next__6Buffer )) , 0 ) :( ( ((! ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> nextfree__4Pool )?( __glgrow__4PoolFv ( ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))) , 0 ) :( 0 ) ), ( (((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> nextfree__4Pool -= ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> buffersize__4Pool ), ( (__1__Xbuffer00azhgaiaa = (((void *)(((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> curblock__4Pool + ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> nextfree__4Pool ))))) ) ) , 0 ) ), (((void *)__1__Xbuffer00azhgaiaa ))) ) ))) )?( (((struct PwlArc *)__0__X14 )-> type__6PwlArc = 0x8 ), ( (((struct PwlArc *)__0__X14 )-> pts__6PwlArc = 0 ), ( (((struct PwlArc *)__0__X14 )-> npts__6PwlArc = -1), ((((struct PwlArc *)__0__X14 )))) ) ) :0 ); ( (__1jarc -> link__3Arc = ((struct Bin *)__1bin )-> head__3Bin ), (((struct Bin *)__1bin )-> head__3Bin = __1jarc )) ; } __1firstvert = (__1jarc -> pwlArc__3Arc -> pts__6PwlArc = __1vert ); __1degenerate = __1nudegenerate ; } } } } __1jarc -> pwlArc__3Arc -> npts__6PwlArc = ((__1vert - __1firstvert )+ 1 ); if (__1degenerate ){ struct PooledObj *__0__X15 ; __1jarc -> prev__3Arc -> next__3Arc = __1jarc -> next__3Arc ; __1jarc -> next__3Arc -> prev__3Arc = __1jarc -> prev__3Arc ; ((void )0 ); ((void )0 ); __glremove_this_arc__3BinFP3Ar0 ( (struct Bin *)__1bin , __1jarc ) ; ( (__0__X15 = (struct PooledObj *)__1jarc -> pwlArc__3Arc ), ( ( (((void )0 )), ( ((((struct Buffer *)(((struct Buffer *)(((void *)__0__X15 ))))))-> next__6Buffer = ((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool ), (((struct Pool *)((struct Pool *)(& __0this -> pwlarcpool__10Subdivider )))-> freelist__4Pool = (((struct Buffer *)(((struct Buffer *)(((void *)__0__X15 )))))))) ) ) ) ; __1jarc -> pwlArc__3Arc = 0 ; ( ( (((void )0 )), ( ((((struct Buffer *)(((struct Buffer *)(((void *)((struct PooledObj *)__1jarc )))))))-> next__6Buffer = ((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool ), (((struct Pool *)((struct Pool *)(& __0this -> arcpool__10Subdivider )))-> freelist__4Pool = (((struct Buffer *)(((struct Buffer *)(((void *)((struct PooledObj *)__1jarc ))))))))) ) ) ; } } } } int __glisMonotone__10SubdividerFP0 (struct Subdivider *__0this , Arc_ptr __1jarc ) { struct TrimVertex *__1firstvert ; struct TrimVertex *__1lastvert ; __1firstvert = __1jarc -> pwlArc__3Arc -> pts__6PwlArc ; __1lastvert = (__1firstvert + (__1jarc -> pwlArc__3Arc -> npts__6PwlArc - 1 )); if (__1firstvert == __1lastvert )return 1 ; { struct TrimVertex *__1vert ; int __1sdir ; int __1tdir ; REAL __1diff ; __1vert = __1firstvert ; __1diff = (((__1vert [1 ]). param__10TrimVertex [0 ])- ((__1vert [0 ]). param__10TrimVertex [0 ])); if (__1diff == 0.0 ) __1sdir = 1; else if (__1diff < 0.0 ) __1sdir = 0; else __1sdir = 2; __1diff = (((__1vert [1 ]). param__10TrimVertex [1 ])- ((__1vert [0 ]). param__10TrimVertex [1 ])); if (__1diff == 0.0 ) __1tdir = 1; else if (__1diff < 0.0 ) __1tdir = 0; else __1tdir = 2; if ((__1sdir == 1)&& (__1tdir == 1))return 0 ; for(++ __1vert ;__1vert != __1lastvert ;__1vert ++ ) { __1diff = (((__1vert [1 ]). param__10TrimVertex [0 ])- ((__1vert [0 ]). param__10TrimVertex [0 ])); if (__1diff == 0.0 ){ if (__1sdir != 1)return 0 ; } else if (__1diff < 0.0 ){ if (__1sdir != 0)return 0 ; } else { if (__1sdir != 2)return 0 ; } __1diff = (((__1vert [1 ]). param__10TrimVertex [1 ])- ((__1vert [0 ]). param__10TrimVertex [1 ])); if (__1diff == 0.0 ){ if (__1tdir != 1)return 0 ; } else if (__1diff < 0.0 ){ if (__1tdir != 0)return 0 ; } else { if (__1tdir != 2)return 0 ; } } return 1 ; } } /* the end */