Cross Reference: /external/skia/third_party/glu/libtess/sweep.c

Lines Matching defs:eLo
503  * eUp->Org is above eLo, or eLo->Org is below eUp (depending on which
510  * point we checked eUp and eLo, and decided that eUp->Org is barely
511  * above eLo.  Then later, we split eLo into two edges (eg. from
513  * our test so that now eUp->Org is incident to eLo, or barely below it.
518  * CheckForIntersect requires that tess->event lies between eUp and eLo,
529   GLUhalfEdge *eLo = regLo->eUp;
531   if( VertLeq( eUp->Org, eLo->Org )) {
532     if( EdgeSign( eLo->Dst, eUp->Org, eLo->Org ) > 0 ) return FALSE;
534     /* eUp->Org appears to be below eLo */
535     if( ! VertEq( eUp->Org, eLo->Org )) {
536       /* Splice eUp->Org into eLo */
537       if ( __gl_meshSplitEdge( eLo->Sym ) == NULL) longjmp(tess->env,1);
538       if ( !__gl_meshSplice( eUp, eLo->Oprev ) ) longjmp(tess->env,1);
541     } else if( eUp->Org != eLo->Org ) {
544       SpliceMergeVertices( tess, eLo->Oprev, eUp );
547     if( EdgeSign( eUp->Dst, eLo->Org, eUp->Org ) < 0 ) return FALSE;
549     /* eLo->Org appears to be above eUp, so splice eLo->Org into eUp */
552     if ( !__gl_meshSplice( eLo->Oprev, eUp ) ) longjmp(tess->env,1);
560  * eUp->Dst is above eLo, or eLo->Dst is below eUp (depending on which
565  * suppose at one point we checked eUp and eLo, and decided that eUp->Dst
566  * is barely above eLo.  Then later, we split eLo into two edges (eg. from
568  * the test so that now eUp->Dst is incident to eLo, or barely below it.
579   GLUhalfEdge *eLo = regLo->eUp;
582   assert( ! VertEq( eUp->Dst, eLo->Dst ));
584   if( VertLeq( eUp->Dst, eLo->Dst )) {
585     if( EdgeSign( eUp->Dst, eLo->Dst, eUp->Org ) < 0 ) return FALSE;
587     /* eLo->Dst is above eUp, so splice eLo->Dst into eUp */
591     if ( !__gl_meshSplice( eLo->Sym, e ) ) longjmp(tess->env,1);
594     if( EdgeSign( eLo->Dst, eUp->Dst, eLo->Org ) > 0 ) return FALSE;
596     /* eUp->Dst is below eLo, so splice eUp->Dst into eLo */
598     e = __gl_meshSplitEdge( eLo );
600     if ( !__gl_meshSplice( eUp->Lnext, eLo->Sym ) ) longjmp(tess->env,1);
620   GLUhalfEdge *eLo = regLo->eUp;
622   GLUvertex *orgLo = eLo->Org;
624   GLUvertex *dstLo = eLo->Dst;
697       if ( !__gl_meshSplice( eLo->Sym, eUp ) ) longjmp(tess->env,1);
706       /* Splice dstUp into eLo, and process the new region(s) */
707       if (__gl_meshSplitEdge( eLo->Sym ) == NULL) longjmp(tess->env,1);
708       if ( !__gl_meshSplice( eUp->Lnext, eLo->Oprev ) ) longjmp(tess->env,1); 
712       regLo->eUp = eLo->Oprev;
713       eLo = FinishLeftRegions( tess, regLo, NULL );
714       AddRightEdges( tess, regUp, eLo->Onext, eUp->Rprev, e, TRUE );
729       if (__gl_meshSplitEdge( eLo->Sym ) == NULL) longjmp(tess->env,1);
730       eLo->Org->s = tess->event->s;
731       eLo->Org->t = tess->event->t;
743    * unprocessed original contours (which will be eLo->Oprev->Lface).
746   if (__gl_meshSplitEdge( eLo->Sym ) == NULL) longjmp(tess->env,1);
747   if ( !__gl_meshSplice( eLo->Oprev, eUp ) ) longjmp(tess->env,1);
772   GLUhalfEdge *eUp, *eLo;
790     eLo = regLo->eUp;
792     if( eUp->Dst != eLo->Dst ) {
802 	  if ( !__gl_meshDelete( eLo ) ) longjmp(tess->env,1);
804 	  eLo = regLo->eUp;
813     if( eUp->Org != eLo->Org ) {
814       if(    eUp->Dst != eLo->Dst
816           && (eUp->Dst == tess->event || eLo->Dst == tess->event) )
837     if( eUp->Org == eLo->Org && eUp->Dst == eLo->Dst ) {
839       AddWinding( eLo, eUp );
886   GLUhalfEdge *eLo = regLo->eUp;
889   if( eUp->Dst != eLo->Dst ) {
904   if( VertEq( eLo->Org, tess->event )) {
905     if ( !__gl_meshSplice( eBottomLeft, eLo->Oprev ) ) longjmp(tess->env,1);
915    * Connect to the closer of eLo->Org, eUp->Org.
917   if( VertLeq( eLo->Org, eUp->Org )) {
918     eNew = eLo->Oprev;
1020   GLUhalfEdge *eUp, *eLo, *eNew;
1031   eLo = regLo->eUp;
1042   reg = VertLeq( eLo->Dst, eUp->Dst ) ? regUp : regLo;
1049       GLUhalfEdge *tempHalfEdge= __gl_meshConnect( eLo->Dnext, vEvent->anEdge);