1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2020, Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*/
#include "gl_query.hh"
namespace blender::gpu {
#define QUERY_CHUNCK_LEN 256
GLQueryPool::~GLQueryPool()
{
glDeleteQueries(query_ids_.size(), query_ids_.data());
}
void GLQueryPool::init(GPUQueryType type)
{
BLI_assert(initialized_ == false);
initialized_ = true;
type_ = type;
gl_type_ = to_gl(type);
query_issued_ = 0;
}
#if 0 /* TODO to avoid realloc of permanent query pool. */
void GLQueryPool::reset(GPUQueryType type)
{
initialized_ = false;
}
#endif
void GLQueryPool::begin_query()
{
/* TODO add assert about expected usage. */
while (query_issued_ >= query_ids_.size()) {
int64_t prev_size = query_ids_.size();
query_ids_.resize(prev_size + QUERY_CHUNCK_LEN);
glGenQueries(QUERY_CHUNCK_LEN, &query_ids_[prev_size]);
}
glBeginQuery(gl_type_, query_ids_[query_issued_++]);
}
void GLQueryPool::end_query()
{
/* TODO add assert about expected usage. */
glEndQuery(gl_type_);
}
void GLQueryPool::get_occlusion_result(MutableSpan<uint32_t> r_values)
{
BLI_assert(r_values.size() == query_issued_);
for (int i = 0; i < query_issued_; i++) {
/* Note: This is a sync point. */
glGetQueryObjectuiv(query_ids_[i], GL_QUERY_RESULT, &r_values[i]);
}
}
} // namespace blender::gpu
|
