blob: 05bf49c8eb0112bdf330138f5011ea51bdea7351 (
plain)
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
|
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file contains the implementation of ResourceMapBase.
#include "gpu/command_buffer/service/precompile.h"
#include "gpu/command_buffer/service/resource.h"
namespace gpu {
// Assigns a resource to a resource ID, by setting it at the right location
// into the list, resizing the list if necessary, and destroying an existing
// resource if one existed already.
void ResourceMapBase::Assign(ResourceId id, Resource *resource) {
if (id >= resources_.size()) {
resources_.resize(id + 1, NULL);
} else {
Resource *&entry = resources_[id];
if (entry) {
delete entry;
entry = NULL;
}
}
DCHECK(resources_[id] == NULL);
resources_[id] = resource;
}
// Destroys a resource contained in the map, setting its entry to NULL. If
// necessary, this will trim the list.
bool ResourceMapBase::Destroy(ResourceId id) {
if (id >= resources_.size()) {
return false;
}
Resource *&entry = resources_[id];
if (entry) {
delete entry;
entry = NULL;
// Removing the last element, we can trim the list.
// TODO: this may not be optimal to do every time. Investigate if it
// becomes an issue, and add a threshold before we resize.
if (id == resources_.size() - 1) {
size_t last_valid = resources_.max_size();
for (unsigned int i = id; i < resources_.size(); --i) {
if (resources_[i]) {
last_valid = i;
break;
}
}
if (last_valid == resources_.max_size()) {
resources_.clear();
} else {
resources_.resize(last_valid + 1);
}
}
return true;
}
return false;
}
// Goes over all non-NULL entries in the list, destroying them, then clears the
// list.
void ResourceMapBase::DestroyAllResources() {
for (Container::iterator i = resources_.begin(); i != resources_.end(); ++i) {
if (*i) {
delete *i;
}
}
resources_.clear();
}
} // namespace gpu
|
