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b311480e | 1 | // Created by: PCT |
2 | // Copyright (c) 1995-1999 Matra Datavision | |
3 | // Copyright (c) 1999-2012 OPEN CASCADE SAS | |
4 | // | |
5 | // The content of this file is subject to the Open CASCADE Technology Public | |
6 | // License Version 6.5 (the "License"). You may not use the content of this file | |
7 | // except in compliance with the License. Please obtain a copy of the License | |
8 | // at http://www.opencascade.org and read it completely before using this file. | |
9 | // | |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
12 | // | |
13 | // The Original Code and all software distributed under the License is | |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
15 | // Initial Developer hereby disclaims all such warranties, including without | |
16 | // limitation, any warranties of merchantability, fitness for a particular | |
17 | // purpose or non-infringement. Please see the License for the specific terms | |
18 | // and conditions governing the rights and limitations under the License. | |
19 | ||
7fd59977 | 20 | |
5f8b738e | 21 | #ifndef OPENGL_TGL_FUNCS_H |
22 | #define OPENGL_TGL_FUNCS_H | |
7fd59977 | 23 | |
24 | typedef float matrix3[4][4]; | |
25 | ||
26 | typedef enum { | |
27 | TYPE_PARAL, | |
28 | TYPE_PERSPECT | |
29 | } projtype; | |
30 | ||
31 | typedef enum { | |
32 | IND_NO_CLIP, | |
33 | IND_CLIP | |
34 | } clip_ind; | |
35 | ||
36 | typedef struct { | |
37 | float x; /* x coordinate */ | |
38 | float y; /* y coordinate */ | |
39 | float z; /* z coordinate */ | |
40 | } point3; | |
41 | ||
42 | typedef struct { | |
43 | float delta_x; /* x magnitude */ | |
44 | float delta_y; /* y magnitude */ | |
45 | float delta_z; /* z magnitude */ | |
46 | } vec3; | |
47 | ||
48 | typedef struct { | |
49 | float x_min; /* x min */ | |
50 | float x_max; /* x max */ | |
51 | float y_min; /* y min */ | |
52 | float y_max; /* y max */ | |
53 | float z_min; /* z min */ | |
54 | float z_max; /* z max */ | |
55 | } limit3; | |
56 | ||
57 | typedef struct { | |
58 | float x_min; /* x min */ | |
59 | float x_max; /* x max */ | |
60 | float y_min; /* y min */ | |
61 | float y_max; /* y max */ | |
62 | } limit; | |
63 | ||
64 | typedef struct { | |
65 | limit win; /* window limits */ | |
66 | limit3 proj_vp; /* viewport limits */ | |
67 | projtype proj_type; /* projection type */ | |
68 | point3 proj_ref_point; /* projection reference point */ | |
69 | float view_plane; /* view plane distance */ | |
70 | float back_plane; /* back plane distance */ | |
71 | float front_plane; /* front plane distance */ | |
72 | } view_map3; | |
73 | ||
2166f0fa SK |
74 | extern void call_func_eval_ori_matrix3 (const point3* vrp, |
75 | const vec3* vpn, | |
76 | const vec3* vup, | |
77 | int* err_ind, | |
78 | float mout[4][4]); | |
7fd59977 | 79 | |
2166f0fa | 80 | extern void call_func_eval_map_matrix3(view_map3 *Map, int *err_ind, matrix3 mat); |
5f8b738e | 81 | |
82 | #endif // OPENGL_TGL_FUNCS_H |