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
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2014 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if USE(TEXTURE_MAPPER)
#include "BitmapTexture.h"
#include <wtf/RunLoop.h>
typedef void *EGLImage;
namespace WebCore {
class BitmapTexturePool;
}
namespace WTF {
template<typename T> struct IsDeprecatedTimerSmartPointerException;
template<> struct IsDeprecatedTimerSmartPointerException<WebCore::BitmapTexturePool> : std::true_type { };
}
namespace WebCore {
class IntSize;
class BitmapTexturePool {
WTF_MAKE_NONCOPYABLE(BitmapTexturePool);
WTF_MAKE_FAST_ALLOCATED();
public:
BitmapTexturePool();
Ref<BitmapTexture> acquireTexture(const IntSize&, OptionSet<BitmapTexture::Flags>);
#if USE(GBM)
Ref<BitmapTexture> createTextureForImage(EGLImage, OptionSet<BitmapTexture::Flags>);
#endif
void releaseUnusedTexturesTimerFired();
private:
struct Entry {
explicit Entry(Ref<BitmapTexture>&& texture)
: m_texture(WTFMove(texture))
{ }
void markIsInUse() { m_lastUsedTime = MonotonicTime::now(); }
bool canBeReleased (MonotonicTime minUsedTime) const { return m_lastUsedTime < minUsedTime && m_texture->refCount() == 1; }
Ref<BitmapTexture> m_texture;
MonotonicTime m_lastUsedTime;
};
void scheduleReleaseUnusedTextures();
void enterLimitExceededModeIfNeeded();
void exitLimitExceededModeIfNeeded();
Vector<Entry> m_textures;
#if USE(GBM)
Vector<Ref<BitmapTexture>> m_imageTextures;
#endif
RunLoop::Timer m_releaseUnusedTexturesTimer;
uint64_t m_poolSize { 0 };
bool m_onLimitExceededMode { false };
Seconds m_releaseUnusedSecondsTolerance;
Seconds m_releaseUnusedTexturesTimerInterval;
};
} // namespace WebCore
#endif // USE(TEXTURE_MAPPER)
|
