1/*
2 * Copyright (c) 2017-2019 Lima Project
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sub license,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 */
24
25/**
26 * Stub support for occlusion queries.
27 *
28 * Since we expose support for GL 2.0, we have to expose occlusion queries,
29 * but the spec allows you to expose 0 query counter bits, so we just return 0
30 * as the result of all our queries.
31 */
32
33#include "util/u_debug.h"
34
35#include "lima_context.h"
36
37struct lima_query
38{
39   uint8_t pad;
40};
41
42static struct pipe_query *
43lima_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
44{
45   struct lima_query *query = calloc(1, sizeof(*query));
46
47   /* Note that struct pipe_query isn't actually defined anywhere. */
48   return (struct pipe_query *)query;
49}
50
51static void
52lima_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
53{
54   free(query);
55}
56
57static bool
58lima_begin_query(struct pipe_context *ctx, struct pipe_query *query)
59{
60   return true;
61}
62
63static bool
64lima_end_query(struct pipe_context *ctx, struct pipe_query *query)
65{
66   return true;
67}
68
69static bool
70lima_get_query_result(struct pipe_context *ctx, struct pipe_query *query,
71                     bool wait, union pipe_query_result *vresult)
72{
73   uint64_t *result = &vresult->u64;
74
75   *result = 0;
76
77   return true;
78}
79
80static void
81lima_set_active_query_state(struct pipe_context *pipe, bool enable)
82{
83
84}
85
86void
87lima_query_init(struct lima_context *pctx)
88{
89   pctx->base.create_query = lima_create_query;
90   pctx->base.destroy_query = lima_destroy_query;
91   pctx->base.begin_query = lima_begin_query;
92   pctx->base.end_query = lima_end_query;
93   pctx->base.get_query_result = lima_get_query_result;
94   pctx->base.set_active_query_state = lima_set_active_query_state;
95}
96
97