blob: 3696848546899cb944db19101c55e147a6fe36b4 (
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
74
75
76
77
78
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_UI_LAYER_CACHE_H
#define ANDROID_UI_LAYER_CACHE_H
#include "Layer.h"
#include "GenerationCache.h"
namespace android {
namespace uirenderer {
class LayerCache: public OnEntryRemoved<LayerSize, Layer*> {
public:
LayerCache(uint32_t maxByteSize);
~LayerCache();
/**
* Used as a callback when an entry is removed from the cache.
* Do not invoke directly.
*/
void operator()(LayerSize& bitmap, Layer*& texture);
/**
* Returns the layer of specified dimensions, NULL if cannot be found.
*/
Layer* get(LayerSize& size);
/**
* Adds the layer to the cache. The layer will not be added if there is
* not enough space available.
*
* @return True if the layer was added, false otherwise.
*/
bool put(LayerSize& size, Layer* layer);
/**
* Clears the cache. This causes all layers to be deleted.
*/
void clear();
/**
* Sets the maximum size of the cache in bytes.
*/
void setMaxSize(uint32_t maxSize);
/**
* Returns the maximum size of the cache in bytes.
*/
uint32_t getMaxSize();
/**
* Returns the current size of the cache in bytes.
*/
uint32_t getSize();
private:
void deleteLayer(Layer* layer);
GenerationCache<LayerSize, Layer*> mCache;
uint32_t mSize;
uint32_t mMaxSize;
}; // class LayerCache
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_UI_LAYER_CACHE_H
|
