300 lines
13 KiB
C
300 lines
13 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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#ifndef __BKE_CURVE_H__
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#define __BKE_CURVE_H__
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/** \file
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* \ingroup bke
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "DNA_scene_types.h"
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struct BezTriple;
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struct Curve;
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struct Depsgraph;
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struct GHash;
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struct ListBase;
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struct Main;
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struct Nurb;
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struct Object;
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struct Path;
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struct TextBox;
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struct rctf;
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typedef int eBezTriple_Flag__Alias;
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typedef struct CurveCache {
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ListBase disp;
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ListBase bev;
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ListBase deformed_nurbs;
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struct Path *path;
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} CurveCache;
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/* Definitions needed for shape keys */
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typedef struct CVKeyIndex {
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void *orig_cv;
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int key_index, nu_index, pt_index, vertex_index;
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bool switched;
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} CVKeyIndex;
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#define KNOTSU(nu) \
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((nu)->orderu + (nu)->pntsu + (((nu)->flagu & CU_NURB_CYCLIC) ? ((nu)->orderu - 1) : 0))
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#define KNOTSV(nu) \
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((nu)->orderv + (nu)->pntsv + (((nu)->flagv & CU_NURB_CYCLIC) ? ((nu)->orderv - 1) : 0))
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/* Non cyclic nurbs have 1 less segment */
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#define SEGMENTSU(nu) (((nu)->flagu & CU_NURB_CYCLIC) ? (nu)->pntsu : (nu)->pntsu - 1)
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#define SEGMENTSV(nu) (((nu)->flagv & CU_NURB_CYCLIC) ? (nu)->pntsv : (nu)->pntsv - 1)
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#define CU_DO_TILT(cu, nu) ((((nu)->flag & CU_2D) && ((cu)->flag & CU_3D) == 0) ? 0 : 1)
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#define CU_DO_RADIUS(cu, nu) \
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((CU_DO_TILT(cu, nu) || ((cu)->flag & CU_PATH_RADIUS) || (cu)->bevobj || (cu)->ext1 != 0.0f || \
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(cu)->ext2 != 0.0f) ? \
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1 : \
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0)
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/* not 3d and not unfilled */
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#define CU_DO_2DFILL(cu) \
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((((cu)->flag & CU_3D) == 0) && (((cu)->flag & (CU_FRONT | CU_BACK)) != 0))
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/* ** Curve ** */
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void BKE_curve_editfont_free(struct Curve *cu);
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void BKE_curve_init(struct Curve *cu, const short curve_type);
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struct Curve *BKE_curve_add(struct Main *bmain, const char *name, int type);
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struct Curve *BKE_curve_copy(struct Main *bmain, const struct Curve *cu);
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short BKE_curve_type_get(struct Curve *cu);
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void BKE_curve_type_test(struct Object *ob);
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void BKE_curve_curve_dimension_update(struct Curve *cu);
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struct BoundBox *BKE_curve_boundbox_get(struct Object *ob);
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void BKE_curve_texspace_calc(struct Curve *cu);
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void BKE_curve_texspace_ensure(struct Curve *cu);
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void BKE_curve_texspace_get(struct Curve *cu, float r_loc[3], float r_size[3]);
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bool BKE_curve_minmax(struct Curve *cu, bool use_radius, float min[3], float max[3]);
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bool BKE_curve_center_median(struct Curve *cu, float cent[3]);
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bool BKE_curve_center_bounds(struct Curve *cu, float cent[3]);
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void BKE_curve_transform_ex(struct Curve *cu,
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float mat[4][4],
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const bool do_keys,
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const bool do_props,
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const float unit_scale);
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void BKE_curve_transform(struct Curve *cu,
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float mat[4][4],
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const bool do_keys,
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const bool do_props);
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void BKE_curve_translate(struct Curve *cu, float offset[3], const bool do_keys);
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void BKE_curve_material_index_remove(struct Curve *cu, int index);
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bool BKE_curve_material_index_used(struct Curve *cu, int index);
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void BKE_curve_material_index_clear(struct Curve *cu);
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bool BKE_curve_material_index_validate(struct Curve *cu);
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void BKE_curve_material_remap(struct Curve *cu, const unsigned int *remap, unsigned int remap_len);
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ListBase *BKE_curve_nurbs_get(struct Curve *cu);
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int BKE_curve_nurb_vert_index_get(const struct Nurb *nu, const void *vert);
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void BKE_curve_nurb_active_set(struct Curve *cu, const struct Nurb *nu);
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struct Nurb *BKE_curve_nurb_active_get(struct Curve *cu);
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void *BKE_curve_vert_active_get(struct Curve *cu);
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void BKE_curve_nurb_vert_active_set(struct Curve *cu, const struct Nurb *nu, const void *vert);
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bool BKE_curve_nurb_vert_active_get(struct Curve *cu, struct Nurb **r_nu, void **r_vert);
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void BKE_curve_nurb_vert_active_validate(struct Curve *cu);
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float (*BKE_curve_nurbs_vert_coords_alloc(struct ListBase *lb, int *r_vert_len))[3];
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void BKE_curve_nurbs_vert_coords_get(struct ListBase *lb, float (*vert_coords)[3], int vert_len);
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void BKE_curve_nurbs_vert_coords_apply_with_mat4(struct ListBase *lb,
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const float (*vert_coords)[3],
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const float mat[4][4],
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const bool constrain_2d);
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void BKE_curve_nurbs_vert_coords_apply(struct ListBase *lb,
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const float (*vert_coords)[3],
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const bool constrain_2d);
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float (*BKE_curve_nurbs_key_vert_coords_alloc(struct ListBase *lb,
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float *key,
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int *r_vert_len))[3];
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void BKE_curve_nurbs_key_vert_tilts_apply(struct ListBase *lb, float *key);
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void BKE_curve_editNurb_keyIndex_delCV(struct GHash *keyindex, const void *cv);
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void BKE_curve_editNurb_keyIndex_free(struct GHash **keyindex);
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void BKE_curve_editNurb_free(struct Curve *cu);
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struct ListBase *BKE_curve_editNurbs_get(struct Curve *cu);
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void BKE_curve_bevelList_free(struct ListBase *bev);
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void BKE_curve_bevelList_make(struct Object *ob, struct ListBase *nurbs, bool for_render);
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void BKE_curve_bevel_make(struct Object *ob, struct ListBase *disp);
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void BKE_curve_forward_diff_bezier(
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float q0, float q1, float q2, float q3, float *p, int it, int stride);
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void BKE_curve_forward_diff_tangent_bezier(
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float q0, float q1, float q2, float q3, float *p, int it, int stride);
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void BKE_curve_rect_from_textbox(const struct Curve *cu,
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const struct TextBox *tb,
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struct rctf *r_rect);
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/* ** Nurbs ** */
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bool BKE_nurbList_index_get_co(struct ListBase *editnurb, const int index, float r_co[3]);
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int BKE_nurbList_verts_count(struct ListBase *nurb);
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int BKE_nurbList_verts_count_without_handles(struct ListBase *nurb);
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void BKE_nurbList_free(struct ListBase *lb);
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void BKE_nurbList_duplicate(struct ListBase *lb1, const struct ListBase *lb2);
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void BKE_nurbList_handles_set(struct ListBase *editnurb, const char code);
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void BKE_nurbList_handles_recalculate(struct ListBase *editnurb,
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const bool calc_length,
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const char flag);
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void BKE_nurbList_handles_autocalc(ListBase *editnurb, int flag);
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void BKE_nurbList_flag_set(ListBase *editnurb, short flag);
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void BKE_nurb_free(struct Nurb *nu);
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struct Nurb *BKE_nurb_duplicate(const struct Nurb *nu);
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struct Nurb *BKE_nurb_copy(struct Nurb *src, int pntsu, int pntsv);
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void BKE_nurb_test_2d(struct Nurb *nu);
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void BKE_nurb_minmax(struct Nurb *nu, bool use_radius, float min[3], float max[3]);
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float BKE_nurb_calc_length(const struct Nurb *nu, int resolution);
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void BKE_nurb_makeFaces(
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const struct Nurb *nu, float *coord_array, int rowstride, int resolu, int resolv);
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void BKE_nurb_makeCurve(const struct Nurb *nu,
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float *coord_array,
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float *tilt_array,
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float *radius_array,
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float *weight_array,
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int resolu,
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int stride);
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unsigned int BKE_curve_calc_coords_axis_len(const unsigned int bezt_array_len,
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const unsigned int resolu,
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const bool is_cyclic,
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const bool use_cyclic_duplicate_endpoint);
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void BKE_curve_calc_coords_axis(const struct BezTriple *bezt_array,
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const unsigned int bezt_array_len,
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const unsigned int resolu,
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const bool is_cyclic,
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const bool use_cyclic_duplicate_endpoint,
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/* array params */
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const unsigned int axis,
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const unsigned int stride,
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float *r_points);
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void BKE_nurb_knot_calc_u(struct Nurb *nu);
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void BKE_nurb_knot_calc_v(struct Nurb *nu);
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/* nurb checks if they can be drawn, also clamp order func */
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bool BKE_nurb_check_valid_u(const struct Nurb *nu);
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bool BKE_nurb_check_valid_v(const struct Nurb *nu);
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bool BKE_nurb_check_valid_uv(const struct Nurb *nu);
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bool BKE_nurb_order_clamp_u(struct Nurb *nu);
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bool BKE_nurb_order_clamp_v(struct Nurb *nu);
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void BKE_nurb_direction_switch(struct Nurb *nu);
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bool BKE_nurb_type_convert(struct Nurb *nu,
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const short type,
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const bool use_handles,
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const char **r_err_msg);
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void BKE_nurb_points_add(struct Nurb *nu, int number);
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void BKE_nurb_bezierPoints_add(struct Nurb *nu, int number);
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int BKE_nurb_index_from_uv(struct Nurb *nu, int u, int v);
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void BKE_nurb_index_to_uv(struct Nurb *nu, int index, int *r_u, int *r_v);
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struct BezTriple *BKE_nurb_bezt_get_next(struct Nurb *nu, struct BezTriple *bezt);
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struct BezTriple *BKE_nurb_bezt_get_prev(struct Nurb *nu, struct BezTriple *bezt);
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struct BPoint *BKE_nurb_bpoint_get_next(struct Nurb *nu, struct BPoint *bp);
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struct BPoint *BKE_nurb_bpoint_get_prev(struct Nurb *nu, struct BPoint *bp);
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void BKE_nurb_bezt_calc_normal(struct Nurb *nu, struct BezTriple *bezt, float r_normal[3]);
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void BKE_nurb_bezt_calc_plane(struct Nurb *nu, struct BezTriple *bezt, float r_plane[3]);
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void BKE_nurb_bpoint_calc_normal(struct Nurb *nu, struct BPoint *bp, float r_normal[3]);
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void BKE_nurb_bpoint_calc_plane(struct Nurb *nu, struct BPoint *bp, float r_plane[3]);
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void BKE_nurb_handle_calc(struct BezTriple *bezt,
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struct BezTriple *prev,
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struct BezTriple *next,
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const bool is_fcurve,
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const char smoothing);
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void BKE_nurb_handle_calc_ex(struct BezTriple *bezt,
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struct BezTriple *prev,
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struct BezTriple *next,
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const eBezTriple_Flag__Alias handle_sel_flag,
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const bool is_fcurve,
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const char smoothing);
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void BKE_nurb_handle_calc_simple(struct Nurb *nu, struct BezTriple *bezt);
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void BKE_nurb_handle_calc_simple_auto(struct Nurb *nu, struct BezTriple *bezt);
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void BKE_nurb_handle_smooth_fcurve(struct BezTriple *bezt, int total, bool cyclic);
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void BKE_nurb_handles_calc(struct Nurb *nu);
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void BKE_nurb_handles_autocalc(struct Nurb *nu, int flag);
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void BKE_nurb_bezt_handle_test(struct BezTriple *bezt,
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const eBezTriple_Flag__Alias sel_flag,
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const bool use_handle);
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void BKE_nurb_handles_test(struct Nurb *nu, const bool use_handles);
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/* **** Depsgraph evaluation **** */
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void BKE_curve_eval_geometry(struct Depsgraph *depsgraph, struct Curve *curve);
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/* Draw Cache */
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enum {
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BKE_CURVE_BATCH_DIRTY_ALL = 0,
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BKE_CURVE_BATCH_DIRTY_SELECT,
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};
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void BKE_curve_batch_cache_dirty_tag(struct Curve *cu, int mode);
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void BKE_curve_batch_cache_free(struct Curve *cu);
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/* curve_decimate.c */
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unsigned int BKE_curve_decimate_bezt_array(struct BezTriple *bezt_array,
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const unsigned int bezt_array_len,
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const unsigned int resolu,
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const bool is_cyclic,
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const char flag_test,
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const char flag_set,
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const float error_sq_max,
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const unsigned int error_target_len);
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void BKE_curve_decimate_nurb(struct Nurb *nu,
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const unsigned int resolu,
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const float error_sq_max,
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const unsigned int error_target_len);
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extern void (*BKE_curve_batch_cache_dirty_tag_cb)(struct Curve *cu, int mode);
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extern void (*BKE_curve_batch_cache_free_cb)(struct Curve *cu);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BKE_CURVE_H__ */
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