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Diffstat (limited to 'src/glu/mini/nurbs.h')
| -rw-r--r-- | src/glu/mini/nurbs.h | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/src/glu/mini/nurbs.h b/src/glu/mini/nurbs.h deleted file mode 100644 index 4a3434032dd..00000000000 --- a/src/glu/mini/nurbs.h +++ /dev/null @@ -1,253 +0,0 @@ -/* $Id: nurbs.h,v 1.2 2003-08-22 20:11:43 brianp Exp $ */ - -/* - * Mesa 3-D graphics library - * Version: 3.3 - * Copyright (C) 1995-2000 Brian Paul - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -/* - * NURBS implementation written by Bogdan Sikorski ([email protected]) - * See README2 for more info. - */ - - -#ifndef NURBS_H -#define NURBS_H - - -#define EPSILON 1e-06 /* epsilon for double precision compares */ - -typedef enum -{ - GLU_NURBS_CURVE, GLU_NURBS_SURFACE, GLU_NURBS_TRIM, GLU_NURBS_NO_TRIM, - GLU_NURBS_TRIM_DONE, GLU_NURBS_NONE -} -GLU_nurbs_enum; - -typedef enum -{ - GLU_TRIM_NURBS, GLU_TRIM_PWL -} -GLU_trim_enum; - -typedef struct -{ - GLint sknot_count; - GLfloat *sknot; - GLint tknot_count; - GLfloat *tknot; - GLint s_stride; - GLint t_stride; - GLfloat *ctrlarray; - GLint sorder; - GLint torder; - GLint dim; - GLenum type; -} -surface_attribs; - -typedef struct -{ - surface_attribs geom; - surface_attribs color; - surface_attribs texture; - surface_attribs normal; -} -nurbs_surface; - -typedef struct -{ - GLint knot_count; - GLfloat *knot; - GLint stride; - GLfloat *ctrlarray; - GLint order; - GLint dim; - GLenum type; -} -curve_attribs; - -typedef struct -{ - GLint pt_count; - GLfloat *ctrlarray; - GLint stride; - GLint dim; - GLenum type; -} -pwl_curve_attribs; - -typedef struct -{ - curve_attribs geom; - curve_attribs color; - curve_attribs texture; - curve_attribs normal; -} -nurbs_curve; - -typedef struct trim_list_str -{ - GLU_trim_enum trim_type; - union - { - pwl_curve_attribs pwl_curve; - curve_attribs nurbs_curve; - } - curve; - struct trim_list_str *next; -} -trim_list; - -typedef struct seg_trim_str -{ - GLfloat *points; - GLint pt_cnt, seg_array_len; - struct seg_trim_str *next; -} -trim_segments; - -typedef struct nurbs_trim_str -{ - trim_list *trim_loop; - trim_segments *segments; - struct nurbs_trim_str *next; -} -nurbs_trim; - -typedef struct -{ - GLfloat model[16], proj[16], viewport[4]; -} -culling_and_sampling_str; - -struct GLUnurbs -{ - GLboolean culling; - GLenum error; - void (GLCALLBACK * error_callback) (GLenum err); - GLenum display_mode; - GLU_nurbs_enum nurbs_type; - GLboolean auto_load_matrix; - culling_and_sampling_str sampling_matrices; - GLenum sampling_method; - GLfloat sampling_tolerance; - GLfloat parametric_tolerance; - GLint u_step, v_step; - nurbs_surface surface; - nurbs_curve curve; - nurbs_trim *trim; -}; - -typedef struct -{ - GLfloat *knot; - GLint nknots; - GLfloat *unified_knot; - GLint unified_nknots; - GLint order; - GLint t_min, t_max; - GLint delta_nknots; - GLboolean open_at_begin, open_at_end; - GLfloat *new_knot; - GLfloat *alpha; -} -knot_str_type; - -typedef struct -{ - GLfloat *geom_ctrl; - GLint geom_s_stride, geom_t_stride; - GLfloat **geom_offsets; - GLint geom_s_pt_cnt, geom_t_pt_cnt; - GLfloat *color_ctrl; - GLint color_s_stride, color_t_stride; - GLfloat **color_offsets; - GLint color_s_pt_cnt, color_t_pt_cnt; - GLfloat *normal_ctrl; - GLint normal_s_stride, normal_t_stride; - GLfloat **normal_offsets; - GLint normal_s_pt_cnt, normal_t_pt_cnt; - GLfloat *texture_ctrl; - GLint texture_s_stride, texture_t_stride; - GLfloat **texture_offsets; - GLint texture_s_pt_cnt, texture_t_pt_cnt; - GLint s_bezier_cnt, t_bezier_cnt; -} -new_ctrl_type; - -extern void call_user_error(GLUnurbsObj * nobj, GLenum error); - -extern GLenum test_knot(GLint nknots, GLfloat * knot, GLint order); - -extern GLenum explode_knot(knot_str_type * the_knot); - -extern GLenum calc_alphas(knot_str_type * the_knot); - -extern GLenum calc_new_ctrl_pts(GLfloat * ctrl, GLint stride, - knot_str_type * the_knot, GLint dim, - GLfloat ** new_ctrl, GLint * ncontrol); - -extern GLenum glu_do_sampling_crv(GLUnurbsObj * nobj, GLfloat * new_ctrl, - GLint n_ctrl, GLint order, GLint dim, - GLint ** factors); - -extern GLenum glu_do_sampling_3D(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl, - int **sfactors, GLint ** tfactors); - -extern GLenum glu_do_sampling_uv(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl, - int **sfactors, GLint ** tfactors); - -extern GLenum glu_do_sampling_param_3D(GLUnurbsObj * nobj, - new_ctrl_type * new_ctrl, - int **sfactors, GLint ** tfactors); - -extern GLboolean fine_culling_test_2D(GLUnurbsObj * nobj, GLfloat * ctrl, - GLint n_ctrl, GLint stride, GLint dim); - -extern GLboolean fine_culling_test_3D(GLUnurbsObj * nobj, GLfloat * ctrl, - GLint s_n_ctrl, GLint t_n_ctrl, - GLint s_stride, GLint t_stride, - GLint dim); - -extern void do_nurbs_curve(GLUnurbsObj * nobj); - -extern void do_nurbs_surface(GLUnurbsObj * nobj); - -extern GLenum patch_trimming(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl, - GLint * sfactors, GLint * tfactors); - -extern void collect_unified_knot(knot_str_type * dest, knot_str_type * src, - GLfloat maximal_min_knot, - GLfloat minimal_max_knot); - -extern GLenum select_knot_working_range(GLUnurbsObj * nobj, - knot_str_type * geom_knot, - knot_str_type * color_knot, - knot_str_type * normal_knot, - knot_str_type * texture_knot); - -extern void free_unified_knots(knot_str_type * geom_knot, - knot_str_type * color_knot, - knot_str_type * normal_knot, - knot_str_type * texture_knot); - - - -#endif |