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_TRANSFER_H
29 #define ILO_TRANSFER_H
30
31 #include "pipe/p_state.h"
32
33 #include "ilo_common.h"
34
35 /*
36 * Direct mappings are always page aligned, but ILO_TRANSFER_MAP_STAGING is
37 * not.
38 */
39 #define ILO_TRANSFER_MAP_BUFFER_ALIGNMENT 64
40
41 enum ilo_transfer_map_method {
42 /* map() / map_gtt() / map_gtt_async() */
43 ILO_TRANSFER_MAP_CPU,
44 ILO_TRANSFER_MAP_GTT,
45 ILO_TRANSFER_MAP_GTT_ASYNC,
46
47 /* use staging resource */
48 ILO_TRANSFER_MAP_STAGING,
49
50 /* use staging system buffer */
51 ILO_TRANSFER_MAP_SW_CONVERT,
52 ILO_TRANSFER_MAP_SW_ZS,
53 };
54
55 struct ilo_transfer {
56 struct pipe_transfer base;
57
58 enum ilo_transfer_map_method method;
59 /* pipe_resource, system memory, or garbage depending on the method */
60 union {
61 struct pipe_resource *res;
62 void *sys;
63 } staging;
64 };
65
66 struct ilo_context;
67
68 static inline struct ilo_transfer *
ilo_transfer(struct pipe_transfer * transfer)69 ilo_transfer(struct pipe_transfer *transfer)
70 {
71 return (struct ilo_transfer *) transfer;
72 }
73
74 void
75 ilo_init_transfer_functions(struct ilo_context *ilo);
76
77 #endif /* ILO_TRANSFER_H */
78