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b311480e | 1 | // Created by: PCT |
2 | // Copyright (c) 1995-1999 Matra Datavision | |
973c2be1 | 3 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
7fd59977 | 15 | |
5f8b738e | 16 | #ifndef OPENGL_TGL_FUNCS_H |
17 | #define OPENGL_TGL_FUNCS_H | |
7fd59977 | 18 | |
19 | typedef float matrix3[4][4]; | |
20 | ||
21 | typedef enum { | |
22 | TYPE_PARAL, | |
23 | TYPE_PERSPECT | |
24 | } projtype; | |
25 | ||
26 | typedef enum { | |
27 | IND_NO_CLIP, | |
28 | IND_CLIP | |
29 | } clip_ind; | |
30 | ||
31 | typedef struct { | |
32 | float x; /* x coordinate */ | |
33 | float y; /* y coordinate */ | |
34 | float z; /* z coordinate */ | |
35 | } point3; | |
36 | ||
37 | typedef struct { | |
38 | float delta_x; /* x magnitude */ | |
39 | float delta_y; /* y magnitude */ | |
40 | float delta_z; /* z magnitude */ | |
41 | } vec3; | |
42 | ||
43 | typedef struct { | |
44 | float x_min; /* x min */ | |
45 | float x_max; /* x max */ | |
46 | float y_min; /* y min */ | |
47 | float y_max; /* y max */ | |
48 | float z_min; /* z min */ | |
49 | float z_max; /* z max */ | |
50 | } limit3; | |
51 | ||
52 | typedef struct { | |
53 | float x_min; /* x min */ | |
54 | float x_max; /* x max */ | |
55 | float y_min; /* y min */ | |
56 | float y_max; /* y max */ | |
57 | } limit; | |
58 | ||
59 | typedef struct { | |
60 | limit win; /* window limits */ | |
61 | limit3 proj_vp; /* viewport limits */ | |
62 | projtype proj_type; /* projection type */ | |
63 | point3 proj_ref_point; /* projection reference point */ | |
64 | float view_plane; /* view plane distance */ | |
65 | float back_plane; /* back plane distance */ | |
66 | float front_plane; /* front plane distance */ | |
67 | } view_map3; | |
68 | ||
2166f0fa SK |
69 | extern void call_func_eval_ori_matrix3 (const point3* vrp, |
70 | const vec3* vpn, | |
71 | const vec3* vup, | |
72 | int* err_ind, | |
73 | float mout[4][4]); | |
7fd59977 | 74 | |
2166f0fa | 75 | extern void call_func_eval_map_matrix3(view_map3 *Map, int *err_ind, matrix3 mat); |
5f8b738e | 76 | |
77 | #endif // OPENGL_TGL_FUNCS_H |