200                           CvSeq* ptseq, CvSeqWriter* writer )  in CV_IMPLEMENT_QSORT()
207     int idx, first_idx = ptseq->first->start_index;  in CV_IMPLEMENT_QSORT()
212         CvSeqBlock* block = ptseq->first;  in CV_IMPLEMENT_QSORT()
216             if( block == ptseq->first )  in CV_IMPLEMENT_QSORT()
248     CvSeq* ptseq = 0;  in cvConvexHull2()  local
260         ptseq = (CvSeq*)array;  in cvConvexHull2()
261         if( !CV_IS_SEQ_POINT_SET( ptseq ))  in cvConvexHull2()
264             hull_storage = ptseq->storage;  in cvConvexHull2()
268         CV_CALL( ptseq = cvPointSeqFromMat(  in cvConvexHull2()
277                 CV_SEQ_KIND_CURVE|CV_SEQ_ELTYPE(ptseq)|  in cvConvexHull2()
300         if( mat->cols + mat->rows - 1 < ptseq->total )  in cvConvexHull2()
303         if( CV_MAT_TYPE(mat->type) != CV_SEQ_ELTYPE(ptseq) &&  in cvConvexHull2()
316     total = ptseq->total;  in cvConvexHull2()
327     is_float = CV_SEQ_ELTYPE(ptseq) == CV_32FC2;  in cvConvexHull2()
332     CV_CALL( pointer = (CvPoint**)cvAlloc( ptseq->total*sizeof(pointer[0]) ));  in cvConvexHull2()
333     CV_CALL( stack = (int*)cvAlloc( (ptseq->total + 2)*sizeof(stack[0]) ));  in cvConvexHull2()
336     cvStartReadSeq( ptseq, &reader );  in cvConvexHull2()
341         CV_NEXT_SEQ_ELEM( ptseq->elem_size, reader );  in cvConvexHull2()
395         int tr_count = sklansky( pointer, ptseq->total - 1, maxy_ind, tr_stack, -1, -1 );  in cvConvexHull2()
415                                                0, tl_count-1, ptseq, &writer ));  in cvConvexHull2()
417                                                tr_count-1, 0, ptseq, &writer ));  in cvConvexHull2()
435         int br_count = sklansky( pointer, ptseq->total - 1, miny_ind, br_stack, 1, 1 );  in cvConvexHull2()
470                                                0, bl_count-1, ptseq, &writer ));  in cvConvexHull2()
472                                                br_count-1, 0, ptseq, &writer ));  in cvConvexHull2()
497         hull.c->rect = cvBoundingRect( ptseq,  in cvConvexHull2()
498             ptseq->header_size < (int)sizeof(CvContour) ||  in cvConvexHull2()
499             &ptseq->flags == &contour_header.flags );  in cvConvexHull2()
536     CvSeq *ptseq = (CvSeq*)array, *hull = (CvSeq*)hullarray;  in cvConvexityDefects()  local
543     if( CV_IS_SEQ( ptseq ))  in cvConvexityDefects()
545         if( !CV_IS_SEQ_POINT_SET( ptseq ))  in cvConvexityDefects()
549             storage = ptseq->storage;  in cvConvexityDefects()
553         CV_CALL( ptseq = cvPointSeqFromMat(  in cvConvexityDefects()
557     if( CV_SEQ_ELTYPE( ptseq ) != CV_32SC2 )  in cvConvexityDefects()
583         if( mat->cols + mat->rows - 1 > ptseq->total )  in cvConvexityDefects()
600     if( ptseq->total < 4 || hull->total < 3)  in cvConvexityDefects()
615             CV_CALL( index1 = cvSeqElemIdx( ptseq, pos ));  in cvConvexityDefects()
618             CV_CALL( index2 = cvSeqElemIdx( ptseq, pos ));  in cvConvexityDefects()
621             CV_CALL( index3 = cvSeqElemIdx( ptseq, pos ));  in cvConvexityDefects()
637     cvStartReadSeq( ptseq, &ptseq_reader, 0 );  in cvConvexityDefects()
643         index = cvSeqElemIdx( ptseq, (char*)hull_cur, 0 );  in cvConvexityDefects()
648         hull_cur = CV_GET_SEQ_ELEM( CvPoint, ptseq, index );  in cvConvexityDefects()
667             hull_next = CV_GET_SEQ_ELEM( CvPoint, ptseq, t );  in cvConvexityDefects()