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
|
/*
* Copyright (C) 2008 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 SkImageRef_GlobalPool_DEFINED
#define SkImageRef_GlobalPool_DEFINED
#include "SkImageRef.h"
class SkImageRef_GlobalPool : public SkImageRef {
public:
// if pool is null, use the global pool
SkImageRef_GlobalPool(SkStream*, SkBitmap::Config, int sampleSize = 1);
virtual ~SkImageRef_GlobalPool();
// overrides
virtual Factory getFactory() const {
return Create;
}
static SkPixelRef* Create(SkFlattenableReadBuffer&);
// API to control the global pool
/** Return the amount specified as the budget for the cache (in bytes).
*/
static size_t GetRAMBudget();
/** Set a new budget value for the cache.
*/
static void SetRAMBudget(size_t);
/** Return how much ram is currently in use by the global cache.
*/
static size_t GetRAMUsed();
/** Free up (approximately) enough such that the amount used by the cache
is <= the specified amount. Since some images may be "in use", the
amount actually freed may not always result in a ram usage value <=
to the requested amount. In addition, because of the
chunky nature of the cache, the resulting usage may be < the requested
amount.
*/
static void SetRAMUsed(size_t usageInBytes);
static void DumpPool();
protected:
virtual bool onDecode(SkImageDecoder* codec, SkStream* stream,
SkBitmap* bitmap, SkBitmap::Config config,
SkImageDecoder::Mode mode);
virtual void onUnlockPixels();
SkImageRef_GlobalPool(SkFlattenableReadBuffer&);
private:
typedef SkImageRef INHERITED;
};
#endif
|
