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
35struct svga_winsys_gb_query *
36vmw_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
65void
66vmw_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
75int
76vmw_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_TRANSFER_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
102void
103vmw_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_TRANSFER_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
136enum pipe_error
137vmw_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