c3context: Added a view draw callback
[simavr] / examples / shared / libc3 / src / c3driver_context.h
1 /*
2         c3driver_context.h
3
4         Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
5
6         This file is part of libc3.
7
8         libc3 is free software: you can redistribute it and/or modify
9         it under the terms of the GNU General Public License as published by
10         the Free Software Foundation, either version 3 of the License, or
11         (at your option) any later version.
12
13         libc3 is distributed in the hope that it will be useful,
14         but WITHOUT ANY WARRANTY; without even the implied warranty of
15         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16         GNU General Public License for more details.
17
18         You should have received a copy of the GNU General Public License
19         along with libc3.  If not, see <http://www.gnu.org/licenses/>.
20  */
21
22
23 #ifndef __C3DRIVER_CONTEXT_H___
24 #define __C3DRIVER_CONTEXT_H___
25
26 #include "c3driver.h"
27
28 struct c3context_t;
29 struct c3driver_context_t;
30 struct c3geometry_t;
31 struct c3context_view_t;
32
33 typedef struct c3driver_context_t {
34         /*
35          * Called when a geometry projection had changed in world view
36          * can also be used to prepare resources like textures and so on
37          */
38         void (*geometry_project)(
39                         struct c3context_t * c,
40                         const struct c3driver_context_t *d,
41                         struct c3geometry_t * g,
42                         union c3mat4 * mat);
43         /*
44          * Called to draw a geometry
45          */
46         void (*geometry_draw)(
47                         struct c3context_t * c,
48                         const struct c3driver_context_t *d,
49                         struct c3geometry_t * g);
50
51         /*
52          * Called when starting to draw a context view(point)
53          */
54         void (*context_view_draw)(
55                         struct c3context_t * c,
56                         const struct c3driver_context_t *d,
57                         struct c3context_view_t * ctx);
58
59         /*
60          * called when a geometry is disposed of, let the application
61          * delete resources like textures etc
62          */
63         void (*geometry_dispose)(
64                 struct c3context_t * c,
65                 const struct c3driver_context_t *d,
66                 struct c3geometry_t * g);
67 } c3driver_context_t, *c3driver_context_p;
68
69 #endif /* __C3DRIVER_CONTEXT_H___ */