1 /**************************************************************************
2 *
3 * Copyright 2005 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef ST_CB_BUFFEROBJECTS_H
29 #define ST_CB_BUFFEROBJECTS_H
30
31 #include "main/compiler.h"
32 #include "main/mtypes.h"
33
34 struct dd_function_table;
35 struct pipe_resource;
36 struct pipe_screen;
37 struct st_context;
38
39 /**
40 * State_tracker vertex/pixel buffer object, derived from Mesa's
41 * gl_buffer_object.
42 */
43 struct st_buffer_object
44 {
45 struct gl_buffer_object Base;
46 struct pipe_resource *buffer; /* GPU storage */
47 struct pipe_transfer *transfer[MAP_COUNT];
48 };
49
50
51 /** cast wrapper */
52 static inline struct st_buffer_object *
st_buffer_object(struct gl_buffer_object * obj)53 st_buffer_object(struct gl_buffer_object *obj)
54 {
55 return (struct st_buffer_object *) obj;
56 }
57
58
59 extern void
60 st_bufferobj_validate_usage(struct st_context *st,
61 struct st_buffer_object *obj,
62 unsigned usage);
63
64
65 extern void
66 st_init_bufferobject_functions(struct pipe_screen *screen,
67 struct dd_function_table *functions);
68
69
70 #endif
71