1 /**********************************************************
2 * Copyright 2015 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26 #include "pipebuffer/pb_bufmgr.h"
27 #include "util/u_memory.h"
28
29 #include "vmw_screen.h"
30 #include "vmw_buffer.h"
31 #include "vmw_query.h"
32
33
34
35 struct svga_winsys_gb_query *
vmw_svga_winsys_query_create(struct svga_winsys_screen * sws,uint32 queryResultLen)36 vmw_svga_winsys_query_create(struct svga_winsys_screen *sws,
37 uint32 queryResultLen)
38 {
39 struct vmw_winsys_screen *vws = vmw_winsys_screen(sws);
40 struct pb_manager *provider = vws->pools.gmr;
41 struct pb_desc desc = {0};
42 struct pb_buffer *pb_buf;
43 struct svga_winsys_gb_query *query;
44
45 query = CALLOC_STRUCT(svga_winsys_gb_query);
46 if (!query)
47 return NULL;
48
49 /* Allocate memory to hold queries for this context */
50 desc.alignment = 4096;
51 pb_buf = provider->create_buffer(provider, queryResultLen, &desc);
52 query->buf = vmw_svga_winsys_buffer_wrap(pb_buf);
53
54 if (!query->buf) {
55 debug_printf("Failed to allocate memory for queries\n");
56 FREE(query);
57 query = NULL;
58 }
59
60 return query;
61 }
62
63
64
65 void
vmw_svga_winsys_query_destroy(struct svga_winsys_screen * sws,struct svga_winsys_gb_query * query)66 vmw_svga_winsys_query_destroy(struct svga_winsys_screen *sws,
67 struct svga_winsys_gb_query *query)
68 {
69 vmw_svga_winsys_buffer_destroy(sws, query->buf);
70 FREE(query);
71 }
72
73
74
75 int
vmw_svga_winsys_query_init(struct svga_winsys_screen * sws,struct svga_winsys_gb_query * query,unsigned offset,SVGA3dQueryState queryState)76 vmw_svga_winsys_query_init(struct svga_winsys_screen *sws,
77 struct svga_winsys_gb_query *query,
78 unsigned offset,
79 SVGA3dQueryState queryState)
80 {
81 SVGA3dQueryState *state;
82
83 state = (SVGA3dQueryState *) vmw_svga_winsys_buffer_map(sws,
84 query->buf,
85 PIPE_MAP_WRITE);
86 if (!state) {
87 debug_printf("Failed to map query result memory for initialization\n");
88 return -1;
89 }
90
91 /* Initialize the query state for the specified query slot */
92 state = (SVGA3dQueryState *)((char *)state + offset);
93 *state = queryState;
94
95 vmw_svga_winsys_buffer_unmap(sws, query->buf);
96
97 return 0;
98 }
99
100
101
102 void
vmw_svga_winsys_query_get_result(struct svga_winsys_screen * sws,struct svga_winsys_gb_query * query,unsigned offset,SVGA3dQueryState * queryState,void * result,uint32 resultLen)103 vmw_svga_winsys_query_get_result(struct svga_winsys_screen *sws,
104 struct svga_winsys_gb_query *query,
105 unsigned offset,
106 SVGA3dQueryState *queryState,
107 void *result, uint32 resultLen)
108 {
109 SVGA3dQueryState *state;
110
111 state = (SVGA3dQueryState *) vmw_svga_winsys_buffer_map(sws,
112 query->buf,
113 PIPE_MAP_READ);
114 if (!state) {
115 debug_printf("Failed to lock query result memory\n");
116
117 if (queryState)
118 *queryState = SVGA3D_QUERYSTATE_FAILED;
119
120 return;
121 }
122
123 state = (SVGA3dQueryState *)((char *)state + offset);
124
125 if (queryState)
126 *queryState = *state;
127
128 if (result) {
129 memcpy(result, state + 1, resultLen);
130 }
131
132 vmw_svga_winsys_buffer_unmap(sws, query->buf);
133 }
134
135
136 enum pipe_error
vmw_swc_query_bind(struct svga_winsys_context * swc,struct svga_winsys_gb_query * query,unsigned flags)137 vmw_swc_query_bind(struct svga_winsys_context *swc,
138 struct svga_winsys_gb_query *query,
139 unsigned flags)
140 {
141 /* no-op on Linux */
142 return PIPE_OK;
143 }
144
145