1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 2012-2013 LunarG, Inc.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  *
24  * Authors:
25  *    Chia-I Wu <olv@lunarg.com>
26  */
27 
28 #ifndef ILO_QUERY_H
29 #define ILO_QUERY_H
30 
31 #include "ilo_common.h"
32 
33 struct intel_bo;
34 struct ilo_context;
35 
36 /**
37  * Queries can be bound to various places in the driver.  While bound, it tells
38  * the driver to collect the data indicated by the type of the query.
39  */
40 struct ilo_query {
41    unsigned type;
42    unsigned index;
43 
44    struct list_head list;
45 
46    bool active;
47 
48    /* for queries that need to read hardware statistics */
49    int cmd_len; /* in dwords, as expected by ilo_cp */
50    bool in_pairs;
51    struct intel_bo *bo;
52    int stride, count;
53    int used;
54 
55    /* storage for the collected data */
56    union pipe_query_result result;
57 };
58 
59 void
60 ilo_init_query_functions(struct ilo_context *ilo);
61 
62 #endif /* ILO_QUERY_H */
63