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
|
// Copyright 2015 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.
#include "core/dom/CompositorProxiedPropertySet.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
std::unique_ptr<CompositorProxiedPropertySet>
CompositorProxiedPropertySet::create() {
return WTF::wrapUnique(new CompositorProxiedPropertySet);
}
CompositorProxiedPropertySet::CompositorProxiedPropertySet() {
memset(m_counts, 0, sizeof(m_counts));
}
CompositorProxiedPropertySet::~CompositorProxiedPropertySet() {}
bool CompositorProxiedPropertySet::isEmpty() const {
return !proxiedProperties();
}
void CompositorProxiedPropertySet::increment(uint32_t mutableProperties) {
for (int i = 0; i < CompositorMutableProperty::kNumProperties; ++i) {
if (mutableProperties & (1 << i))
++m_counts[i];
}
}
void CompositorProxiedPropertySet::decrement(uint32_t mutableProperties) {
for (int i = 0; i < CompositorMutableProperty::kNumProperties; ++i) {
if (mutableProperties & (1 << i)) {
DCHECK(m_counts[i]);
--m_counts[i];
}
}
}
uint32_t CompositorProxiedPropertySet::proxiedProperties() const {
uint32_t properties = CompositorMutableProperty::kNone;
for (int i = 0; i < CompositorMutableProperty::kNumProperties; ++i) {
if (m_counts[i])
properties |= 1 << i;
}
return properties;
}
} // namespace blink
|
