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
79
|
/*
* 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_HWUI_FBO_CACHE_H
#define ANDROID_HWUI_FBO_CACHE_H
#include <GLES2/gl2.h>
#include <utils/SortedVector.h>
namespace android {
namespace uirenderer {
///////////////////////////////////////////////////////////////////////////////
// Cache
///////////////////////////////////////////////////////////////////////////////
class FboCache {
public:
FboCache();
~FboCache();
/**
* Returns an FBO from the cache. If no FBO is available, a new one
* is created. If creating a new FBO fails, 0 is returned.
*
* When an FBO is obtained from the cache, it is removed and the
* total number of FBOs available in the cache decreases.
*
* @return The name of the FBO, or 0 if no FBO can be obtained.
*/
GLuint get();
/**
* Adds the specified FBO to the cache.
*
* @param fbo The FBO to add to the cache.
*
* @return True if the FBO was added, false otherwise.
*/
bool put(GLuint fbo);
/**
* Clears the cache. This causes all FBOs to be deleted.
*/
void clear();
/**
* Returns the current size of the cache.
*/
uint32_t getSize();
/**
* Returns the maximum number of FBOs that the cache can hold.
*/
uint32_t getMaxSize();
private:
SortedVector<GLuint> mCache;
uint32_t mMaxSize;
}; // class FboCache
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_FBO_CACHE_H
|
