From 594f47ecd2d5367ca936cf6fc6ec8168c2b360d0 Mon Sep 17 00:00:00 2001 From: Hans Goudey Date: Fri, 23 Oct 2020 23:29:52 -0500 Subject: Cleanup: Return early in some curve functions This commit uses continue in loops and returning early to reduce indentation in long functions, only where this results in a significant improvement. Also includes a few LISTBASE_FOREACH macros. --- source/blender/blenkernel/intern/curve.c | 659 ++++++++++++++++--------------- 1 file changed, 331 insertions(+), 328 deletions(-) (limited to 'source/blender/blenkernel/intern/curve.c') diff --git a/source/blender/blenkernel/intern/curve.c b/source/blender/blenkernel/intern/curve.c index 7e9ee1ad153..82548112096 100644 --- a/source/blender/blenkernel/intern/curve.c +++ b/source/blender/blenkernel/intern/curve.c @@ -461,15 +461,14 @@ short BKE_curve_type_get(const Curve *cu) void BKE_curve_curve_dimension_update(Curve *cu) { ListBase *nurbs = BKE_curve_nurbs_get(cu); - Nurb *nu = nurbs->first; if (cu->flag & CU_3D) { - for (; nu; nu = nu->next) { + LISTBASE_FOREACH (Nurb *, nu, nurbs) { nu->flag &= ~CU_2D; } } else { - for (; nu; nu = nu->next) { + LISTBASE_FOREACH (Nurb *, nu, nurbs) { nu->flag |= CU_2D; BKE_nurb_test_2d(nu); @@ -2673,6 +2672,17 @@ void BKE_curve_bevelList_make(Object *ob, ListBase *nurbs, bool for_render) continue; } + /* check we are a single point? also check we are not a surface and that the orderu is sane, + * enforced in the UI but can go wrong possibly */ + if (!BKE_nurb_check_valid_u(nu)) { + BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList1"); + bl->bevpoints = MEM_calloc_arrayN(1, sizeof(BevPoint), "makeBevelPoints1"); + BLI_addtail(bev, bl); + bl->nr = 0; + bl->charidx = nu->charidx; + continue; + } + /* check if we will calculate tilt data */ do_tilt = CU_DO_TILT(cu, nu); @@ -2681,89 +2691,231 @@ void BKE_curve_bevelList_make(Object *ob, ListBase *nurbs, bool for_render) do_weight = true; - /* check we are a single point? also check we are not a surface and that the orderu is sane, - * enforced in the UI but can go wrong possibly */ - if (!BKE_nurb_check_valid_u(nu)) { - BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList1"); - bl->bevpoints = MEM_calloc_arrayN(1, sizeof(BevPoint), "makeBevelPoints1"); + BevPoint *bevp; + + if (for_render && cu->resolu_ren != 0) { + resolu = cu->resolu_ren; + } + else { + resolu = nu->resolu; + } + + segcount = SEGMENTSU(nu); + + if (nu->type == CU_POLY) { + len = nu->pntsu; + BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList2"); + bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelPoints2"); + if (need_seglen && (nu->flagu & CU_NURB_CYCLIC) == 0) { + bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelList2_seglen"); + bl->segbevcount = MEM_malloc_arrayN(segcount, sizeof(int), "makeBevelList2_segbevcount"); + } BLI_addtail(bev, bl); - bl->nr = 0; + + bl->poly = (nu->flagu & CU_NURB_CYCLIC) ? 0 : -1; + bl->nr = len; + bl->dupe_nr = 0; bl->charidx = nu->charidx; + bevp = bl->bevpoints; + bevp->offset = 0; + bp = nu->bp; + seglen = bl->seglen; + segbevcount = bl->segbevcount; + + while (len--) { + copy_v3_v3(bevp->vec, bp->vec); + bevp->tilt = bp->tilt; + bevp->radius = bp->radius; + bevp->weight = bp->weight; + bevp->split_tag = true; + bp++; + if (seglen != NULL && len != 0) { + *seglen = len_v3v3(bevp->vec, bp->vec); + bevp++; + bevp->offset = *seglen; + if (*seglen > treshold) { + *segbevcount = 1; + } + else { + *segbevcount = 0; + } + seglen++; + segbevcount++; + } + else { + bevp++; + } + } + + if ((nu->flagu & CU_NURB_CYCLIC) == 0) { + bevlist_firstlast_direction_calc_from_bpoint(nu, bl); + } } - else { - BevPoint *bevp; + else if (nu->type == CU_BEZIER) { + /* in case last point is not cyclic */ + len = segcount * resolu + 1; - if (for_render && cu->resolu_ren != 0) { - resolu = cu->resolu_ren; + BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelBPoints"); + bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelBPointsPoints"); + if (need_seglen && (nu->flagu & CU_NURB_CYCLIC) == 0) { + bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelBPoints_seglen"); + bl->segbevcount = MEM_malloc_arrayN(segcount, sizeof(int), "makeBevelBPoints_segbevcount"); + } + BLI_addtail(bev, bl); + + bl->poly = (nu->flagu & CU_NURB_CYCLIC) ? 0 : -1; + bl->charidx = nu->charidx; + + bevp = bl->bevpoints; + seglen = bl->seglen; + segbevcount = bl->segbevcount; + + bevp->offset = 0; + if (seglen != NULL) { + *seglen = 0; + *segbevcount = 0; + } + + a = nu->pntsu - 1; + bezt = nu->bezt; + if (nu->flagu & CU_NURB_CYCLIC) { + a++; + prevbezt = nu->bezt + (nu->pntsu - 1); } else { - resolu = nu->resolu; + prevbezt = bezt; + bezt++; } - segcount = SEGMENTSU(nu); + sub_v3_v3v3(bevp->dir, prevbezt->vec[2], prevbezt->vec[1]); + normalize_v3(bevp->dir); - if (nu->type == CU_POLY) { - len = nu->pntsu; - BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList2"); - bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelPoints2"); - if (need_seglen && (nu->flagu & CU_NURB_CYCLIC) == 0) { - bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelList2_seglen"); - bl->segbevcount = MEM_malloc_arrayN(segcount, sizeof(int), "makeBevelList2_segbevcount"); - } - BLI_addtail(bev, bl); + BLI_assert(segcount >= a); - bl->poly = (nu->flagu & CU_NURB_CYCLIC) ? 0 : -1; - bl->nr = len; - bl->dupe_nr = 0; - bl->charidx = nu->charidx; - bevp = bl->bevpoints; - bevp->offset = 0; - bp = nu->bp; - seglen = bl->seglen; - segbevcount = bl->segbevcount; + while (a--) { + if (prevbezt->h2 == HD_VECT && bezt->h1 == HD_VECT) { - while (len--) { - copy_v3_v3(bevp->vec, bp->vec); - bevp->tilt = bp->tilt; - bevp->radius = bp->radius; - bevp->weight = bp->weight; + copy_v3_v3(bevp->vec, prevbezt->vec[1]); + bevp->tilt = prevbezt->tilt; + bevp->radius = prevbezt->radius; + bevp->weight = prevbezt->weight; bevp->split_tag = true; - bp++; - if (seglen != NULL && len != 0) { - *seglen = len_v3v3(bevp->vec, bp->vec); - bevp++; + bevp->dupe_tag = false; + bevp++; + bl->nr++; + bl->dupe_nr = 1; + if (seglen != NULL) { + *seglen = len_v3v3(prevbezt->vec[1], bezt->vec[1]); bevp->offset = *seglen; - if (*seglen > treshold) { + seglen++; + /* match segbevcount to the cleaned up bevel lists (see STEP 2) */ + if (bevp->offset > treshold) { *segbevcount = 1; } - else { - *segbevcount = 0; + segbevcount++; + } + } + else { + /* always do all three, to prevent data hanging around */ + int j; + + /* BevPoint must stay aligned to 4 so sizeof(BevPoint)/sizeof(float) works */ + for (j = 0; j < 3; j++) { + BKE_curve_forward_diff_bezier(prevbezt->vec[1][j], + prevbezt->vec[2][j], + bezt->vec[0][j], + bezt->vec[1][j], + &(bevp->vec[j]), + resolu, + sizeof(BevPoint)); + } + + /* if both arrays are NULL do nothiong */ + tilt_bezpart(prevbezt, + bezt, + nu, + do_tilt ? &bevp->tilt : NULL, + do_radius ? &bevp->radius : NULL, + do_weight ? &bevp->weight : NULL, + resolu, + sizeof(BevPoint)); + + if (cu->twist_mode == CU_TWIST_TANGENT) { + forward_diff_bezier_cotangent(prevbezt->vec[1], + prevbezt->vec[2], + bezt->vec[0], + bezt->vec[1], + bevp->tan, + resolu, + sizeof(BevPoint)); + } + + /* indicate with handlecodes double points */ + if (prevbezt->h1 == prevbezt->h2) { + if (prevbezt->h1 == 0 || prevbezt->h1 == HD_VECT) { + bevp->split_tag = true; + } + } + else { + if (prevbezt->h1 == 0 || prevbezt->h1 == HD_VECT) { + bevp->split_tag = true; + } + else if (prevbezt->h2 == 0 || prevbezt->h2 == HD_VECT) { + bevp->split_tag = true; + } + } + + /* seglen */ + if (seglen != NULL) { + *seglen = 0; + *segbevcount = 0; + for (j = 0; j < resolu; j++) { + bevp0 = bevp; + bevp++; + bevp->offset = len_v3v3(bevp0->vec, bevp->vec); + /* match seglen and segbevcount to the cleaned up bevel lists (see STEP 2) */ + if (bevp->offset > treshold) { + *seglen += bevp->offset; + *segbevcount += 1; + } } seglen++; segbevcount++; } else { - bevp++; + bevp += resolu; } + bl->nr += resolu; } + prevbezt = bezt; + bezt++; + } - if ((nu->flagu & CU_NURB_CYCLIC) == 0) { - bevlist_firstlast_direction_calc_from_bpoint(nu, bl); - } + if ((nu->flagu & CU_NURB_CYCLIC) == 0) { /* not cyclic: endpoint */ + copy_v3_v3(bevp->vec, prevbezt->vec[1]); + bevp->tilt = prevbezt->tilt; + bevp->radius = prevbezt->radius; + bevp->weight = prevbezt->weight; + + sub_v3_v3v3(bevp->dir, prevbezt->vec[1], prevbezt->vec[0]); + normalize_v3(bevp->dir); + + bl->nr++; } - else if (nu->type == CU_BEZIER) { - /* in case last point is not cyclic */ - len = segcount * resolu + 1; + } + else if (nu->type == CU_NURBS) { + if (nu->pntsv == 1) { + len = (resolu * segcount); - BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelBPoints"); - bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelBPointsPoints"); + BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList3"); + bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelPoints3"); if (need_seglen && (nu->flagu & CU_NURB_CYCLIC) == 0) { - bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelBPoints_seglen"); - bl->segbevcount = MEM_malloc_arrayN( - segcount, sizeof(int), "makeBevelBPoints_segbevcount"); + bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelList3_seglen"); + bl->segbevcount = MEM_malloc_arrayN(segcount, sizeof(int), "makeBevelList3_segbevcount"); } BLI_addtail(bev, bl); - + bl->nr = len; + bl->dupe_nr = 0; bl->poly = (nu->flagu & CU_NURB_CYCLIC) ? 0 : -1; bl->charidx = nu->charidx; @@ -2771,196 +2923,41 @@ void BKE_curve_bevelList_make(Object *ob, ListBase *nurbs, bool for_render) seglen = bl->seglen; segbevcount = bl->segbevcount; - bevp->offset = 0; - if (seglen != NULL) { - *seglen = 0; - *segbevcount = 0; - } - - a = nu->pntsu - 1; - bezt = nu->bezt; - if (nu->flagu & CU_NURB_CYCLIC) { - a++; - prevbezt = nu->bezt + (nu->pntsu - 1); - } - else { - prevbezt = bezt; - bezt++; - } - - sub_v3_v3v3(bevp->dir, prevbezt->vec[2], prevbezt->vec[1]); - normalize_v3(bevp->dir); + BKE_nurb_makeCurve(nu, + &bevp->vec[0], + do_tilt ? &bevp->tilt : NULL, + do_radius ? &bevp->radius : NULL, + do_weight ? &bevp->weight : NULL, + resolu, + sizeof(BevPoint)); - BLI_assert(segcount >= a); - - while (a--) { - if (prevbezt->h2 == HD_VECT && bezt->h1 == HD_VECT) { - - copy_v3_v3(bevp->vec, prevbezt->vec[1]); - bevp->tilt = prevbezt->tilt; - bevp->radius = prevbezt->radius; - bevp->weight = prevbezt->weight; - bevp->split_tag = true; - bevp->dupe_tag = false; - bevp++; - bl->nr++; - bl->dupe_nr = 1; - if (seglen != NULL) { - *seglen = len_v3v3(prevbezt->vec[1], bezt->vec[1]); - bevp->offset = *seglen; - seglen++; - /* match segbevcount to the cleaned up bevel lists (see STEP 2) */ - if (bevp->offset > treshold) { - *segbevcount = 1; - } - segbevcount++; - } - } - else { - /* always do all three, to prevent data hanging around */ + /* match seglen and segbevcount to the cleaned up bevel lists (see STEP 2) */ + if (seglen != NULL) { + nr = segcount; + bevp0 = bevp; + bevp++; + while (nr) { int j; - - /* BevPoint must stay aligned to 4 so sizeof(BevPoint)/sizeof(float) works */ - for (j = 0; j < 3; j++) { - BKE_curve_forward_diff_bezier(prevbezt->vec[1][j], - prevbezt->vec[2][j], - bezt->vec[0][j], - bezt->vec[1][j], - &(bevp->vec[j]), - resolu, - sizeof(BevPoint)); - } - - /* if both arrays are NULL do nothiong */ - tilt_bezpart(prevbezt, - bezt, - nu, - do_tilt ? &bevp->tilt : NULL, - do_radius ? &bevp->radius : NULL, - do_weight ? &bevp->weight : NULL, - resolu, - sizeof(BevPoint)); - - if (cu->twist_mode == CU_TWIST_TANGENT) { - forward_diff_bezier_cotangent(prevbezt->vec[1], - prevbezt->vec[2], - bezt->vec[0], - bezt->vec[1], - bevp->tan, - resolu, - sizeof(BevPoint)); - } - - /* indicate with handlecodes double points */ - if (prevbezt->h1 == prevbezt->h2) { - if (prevbezt->h1 == 0 || prevbezt->h1 == HD_VECT) { - bevp->split_tag = true; - } - } - else { - if (prevbezt->h1 == 0 || prevbezt->h1 == HD_VECT) { - bevp->split_tag = true; - } - else if (prevbezt->h2 == 0 || prevbezt->h2 == HD_VECT) { - bevp->split_tag = true; - } - } - - /* seglen */ - if (seglen != NULL) { - *seglen = 0; - *segbevcount = 0; - for (j = 0; j < resolu; j++) { - bevp0 = bevp; - bevp++; - bevp->offset = len_v3v3(bevp0->vec, bevp->vec); - /* match seglen and segbevcount to the cleaned up bevel lists (see STEP 2) */ - if (bevp->offset > treshold) { - *seglen += bevp->offset; - *segbevcount += 1; - } + *seglen = 0; + *segbevcount = 0; + /* We keep last bevel segment zero-length. */ + for (j = 0; j < ((nr == 1) ? (resolu - 1) : resolu); j++) { + bevp->offset = len_v3v3(bevp0->vec, bevp->vec); + if (bevp->offset > treshold) { + *seglen += bevp->offset; + *segbevcount += 1; } - seglen++; - segbevcount++; - } - else { - bevp += resolu; + bevp0 = bevp; + bevp++; } - bl->nr += resolu; + seglen++; + segbevcount++; + nr--; } - prevbezt = bezt; - bezt++; - } - - if ((nu->flagu & CU_NURB_CYCLIC) == 0) { /* not cyclic: endpoint */ - copy_v3_v3(bevp->vec, prevbezt->vec[1]); - bevp->tilt = prevbezt->tilt; - bevp->radius = prevbezt->radius; - bevp->weight = prevbezt->weight; - - sub_v3_v3v3(bevp->dir, prevbezt->vec[1], prevbezt->vec[0]); - normalize_v3(bevp->dir); - - bl->nr++; } - } - else if (nu->type == CU_NURBS) { - if (nu->pntsv == 1) { - len = (resolu * segcount); - BevList *bl = MEM_callocN(sizeof(BevList), "makeBevelList3"); - bl->bevpoints = MEM_calloc_arrayN(len, sizeof(BevPoint), "makeBevelPoints3"); - if (need_seglen && (nu->flagu & CU_NURB_CYCLIC) == 0) { - bl->seglen = MEM_malloc_arrayN(segcount, sizeof(float), "makeBevelList3_seglen"); - bl->segbevcount = MEM_malloc_arrayN( - segcount, sizeof(int), "makeBevelList3_segbevcount"); - } - BLI_addtail(bev, bl); - bl->nr = len; - bl->dupe_nr = 0; - bl->poly = (nu->flagu & CU_NURB_CYCLIC) ? 0 : -1; - bl->charidx = nu->charidx; - - bevp = bl->bevpoints; - seglen = bl->seglen; - segbevcount = bl->segbevcount; - - BKE_nurb_makeCurve(nu, - &bevp->vec[0], - do_tilt ? &bevp->tilt : NULL, - do_radius ? &bevp->radius : NULL, - do_weight ? &bevp->weight : NULL, - resolu, - sizeof(BevPoint)); - - /* match seglen and segbevcount to the cleaned up bevel lists (see STEP 2) */ - if (seglen != NULL) { - nr = segcount; - bevp0 = bevp; - bevp++; - while (nr) { - int j; - *seglen = 0; - *segbevcount = 0; - /* We keep last bevel segment zero-length. */ - for (j = 0; j < ((nr == 1) ? (resolu - 1) : resolu); j++) { - bevp->offset = len_v3v3(bevp0->vec, bevp->vec); - if (bevp->offset > treshold) { - *seglen += bevp->offset; - *segbevcount += 1; - } - bevp0 = bevp; - bevp++; - } - seglen++; - segbevcount++; - nr--; - } - } - - if ((nu->flagu & CU_NURB_CYCLIC) == 0) { - bevlist_firstlast_direction_calc_from_bpoint(nu, bl); - } + if ((nu->flagu & CU_NURB_CYCLIC) == 0) { + bevlist_firstlast_direction_calc_from_bpoint(nu, bl); } } } @@ -2968,74 +2965,78 @@ void BKE_curve_bevelList_make(Object *ob, ListBase *nurbs, bool for_render) /* STEP 2: DOUBLE POINTS AND AUTOMATIC RESOLUTION, REDUCE DATABLOCKS */ LISTBASE_FOREACH (BevList *, bl, bev) { - if (bl->nr) { /* null bevel items come from single points */ - bool is_cyclic = bl->poly != -1; - nr = bl->nr; - if (is_cyclic) { - bevp1 = bl->bevpoints; - bevp0 = bevp1 + (nr - 1); + if (bl->nr == 0) { /* null bevel items come from single points */ + continue; + } + + bool is_cyclic = bl->poly != -1; + nr = bl->nr; + if (is_cyclic) { + bevp1 = bl->bevpoints; + bevp0 = bevp1 + (nr - 1); + } + else { + bevp0 = bl->bevpoints; + bevp0->offset = 0; + bevp1 = bevp0 + 1; + } + nr--; + while (nr--) { + if (seglen != NULL) { + if (fabsf(bevp1->offset) < treshold) { + bevp0->dupe_tag = true; + bl->dupe_nr++; + } } else { - bevp0 = bl->bevpoints; - bevp0->offset = 0; - bevp1 = bevp0 + 1; - } - nr--; - while (nr--) { - if (seglen != NULL) { - if (fabsf(bevp1->offset) < treshold) { - bevp0->dupe_tag = true; - bl->dupe_nr++; - } - } - else { - if (fabsf(bevp0->vec[0] - bevp1->vec[0]) < 0.00001f) { - if (fabsf(bevp0->vec[1] - bevp1->vec[1]) < 0.00001f) { - if (fabsf(bevp0->vec[2] - bevp1->vec[2]) < 0.00001f) { - bevp0->dupe_tag = true; - bl->dupe_nr++; - } + if (fabsf(bevp0->vec[0] - bevp1->vec[0]) < 0.00001f) { + if (fabsf(bevp0->vec[1] - bevp1->vec[1]) < 0.00001f) { + if (fabsf(bevp0->vec[2] - bevp1->vec[2]) < 0.00001f) { + bevp0->dupe_tag = true; + bl->dupe_nr++; } } } - bevp0 = bevp1; - bevp1++; } + bevp0 = bevp1; + bevp1++; } } LISTBASE_FOREACH_MUTABLE (BevList *, bl, bev) { - if (bl->nr && bl->dupe_nr) { - nr = bl->nr - bl->dupe_nr + 1; /* +1 because vectorbezier sets flag too */ - blnew = MEM_mallocN(sizeof(BevList), "makeBevelList4"); - memcpy(blnew, bl, sizeof(BevList)); - blnew->bevpoints = MEM_calloc_arrayN(nr, sizeof(BevPoint), "makeBevelPoints4"); - if (!blnew->bevpoints) { - MEM_freeN(blnew); - break; - } - blnew->segbevcount = bl->segbevcount; - blnew->seglen = bl->seglen; - blnew->nr = 0; - BLI_remlink(bev, bl); - BLI_insertlinkbefore(bev, bl->next, blnew); /* to make sure bevlist is tuned with nurblist */ - bevp0 = bl->bevpoints; - bevp1 = blnew->bevpoints; - nr = bl->nr; - while (nr--) { - if (bevp0->dupe_tag == 0) { - memcpy(bevp1, bevp0, sizeof(BevPoint)); - bevp1++; - blnew->nr++; - } - bevp0++; - } - if (bl->bevpoints != NULL) { - MEM_freeN(bl->bevpoints); + if (bl->nr == 0 || bl->dupe_nr == 0) { + continue; + } + + nr = bl->nr - bl->dupe_nr + 1; /* +1 because vectorbezier sets flag too */ + blnew = MEM_mallocN(sizeof(BevList), "makeBevelList4"); + memcpy(blnew, bl, sizeof(BevList)); + blnew->bevpoints = MEM_calloc_arrayN(nr, sizeof(BevPoint), "makeBevelPoints4"); + if (!blnew->bevpoints) { + MEM_freeN(blnew); + break; + } + blnew->segbevcount = bl->segbevcount; + blnew->seglen = bl->seglen; + blnew->nr = 0; + BLI_remlink(bev, bl); + BLI_insertlinkbefore(bev, bl->next, blnew); /* to make sure bevlist is tuned with nurblist */ + bevp0 = bl->bevpoints; + bevp1 = blnew->bevpoints; + nr = bl->nr; + while (nr--) { + if (bevp0->dupe_tag == 0) { + memcpy(bevp1, bevp0, sizeof(BevPoint)); + bevp1++; + blnew->nr++; } - MEM_freeN(bl); - blnew->dupe_nr = 0; + bevp0++; } + if (bl->bevpoints != NULL) { + MEM_freeN(bl->bevpoints); + } + MEM_freeN(bl); + blnew->dupe_nr = 0; } /* STEP 3: POLYS COUNT AND AUTOHOLE */ @@ -3645,7 +3646,7 @@ static bool tridiagonal_solve_with_limits(float *a, * is affected by all other points of the curve segment, in practice the influence * decreases exponentially with distance. * - * Note: this algorithm assumes that the handle horizontal size if always 1/3 of the + * Note: this algorithm assumes that the handle horizontal size is always 1/3 of the * of the interval to the next point. This rule ensures linear interpolation of time. * * ^ height (co 1) @@ -4389,50 +4390,52 @@ void BKE_nurbList_handles_recalculate(ListBase *editnurb, int a; LISTBASE_FOREACH (Nurb *, nu, editnurb) { - if (nu->type == CU_BEZIER) { - bool changed = false; + if (nu->type != CU_BEZIER) { + continue; + } - for (a = nu->pntsu, bezt = nu->bezt; a--; bezt++) { + bool changed = false; - const bool h1_select = (bezt->f1 & flag) == flag; - const bool h2_select = (bezt->f3 & flag) == flag; + for (a = nu->pntsu, bezt = nu->bezt; a--; bezt++) { - if (h1_select || h2_select) { + const bool h1_select = (bezt->f1 & flag) == flag; + const bool h2_select = (bezt->f3 & flag) == flag; - float co1_back[3], co2_back[3]; + if (h1_select || h2_select) { - copy_v3_v3(co1_back, bezt->vec[0]); - copy_v3_v3(co2_back, bezt->vec[2]); + float co1_back[3], co2_back[3]; - BKE_nurb_handle_calc_simple_auto(nu, bezt); + copy_v3_v3(co1_back, bezt->vec[0]); + copy_v3_v3(co2_back, bezt->vec[2]); - if (h1_select) { - if (!calc_length) { - dist_ensure_v3_v3fl(bezt->vec[0], bezt->vec[1], len_v3v3(co1_back, bezt->vec[1])); - } - } - else { - copy_v3_v3(bezt->vec[0], co1_back); - } + BKE_nurb_handle_calc_simple_auto(nu, bezt); - if (h2_select) { - if (!calc_length) { - dist_ensure_v3_v3fl(bezt->vec[2], bezt->vec[1], len_v3v3(co2_back, bezt->vec[1])); - } - } - else { - copy_v3_v3(bezt->vec[2], co2_back); + if (h1_select) { + if (!calc_length) { + dist_ensure_v3_v3fl(bezt->vec[0], bezt->vec[1], len_v3v3(co1_back, bezt->vec[1])); } + } + else { + copy_v3_v3(bezt->vec[0], co1_back); + } - changed = true; + if (h2_select) { + if (!calc_length) { + dist_ensure_v3_v3fl(bezt->vec[2], bezt->vec[1], len_v3v3(co2_back, bezt->vec[1])); + } + } + else { + copy_v3_v3(bezt->vec[2], co2_back); } - } - if (changed) { - /* Recalculate the whole curve */ - BKE_nurb_handles_calc(nu); + changed = true; } } + + if (changed) { + /* Recalculate the whole curve */ + BKE_nurb_handles_calc(nu); + } } } -- cgit v1.2.3