Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / third_party / WebKit / Source / platform / graphics / Pattern.cpp
1 /*
2  * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
3  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
4  * Copyright (C) 2013 Google, Inc. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27
28 #include "config.h"
29 #include "platform/graphics/Pattern.h"
30
31 #include "platform/graphics/BitmapPattern.h"
32 #include "platform/graphics/DisplayList.h"
33 #include "platform/graphics/DisplayListPattern.h"
34 #include "platform/graphics/StaticBitmapPattern.h"
35 #include "third_party/skia/include/core/SkImage.h"
36 #include "third_party/skia/include/core/SkShader.h"
37 #include <v8.h>
38
39 namespace blink {
40
41 PassRefPtr<Pattern> Pattern::createBitmapPattern(PassRefPtr<Image> tileImage, RepeatMode repeatMode)
42 {
43     if (tileImage->skImage())
44         return StaticBitmapPattern::create(tileImage, repeatMode);
45
46     return BitmapPattern::create(tileImage, repeatMode);
47 }
48
49 PassRefPtr<Pattern> Pattern::createDisplayListPattern(PassRefPtr<DisplayList> displayList,
50     RepeatMode repeatMode)
51 {
52     return DisplayListPattern::create(displayList, repeatMode);
53 }
54
55 Pattern::Pattern(RepeatMode repeatMode, int64_t externalMemoryAllocated)
56     : m_repeatMode(repeatMode)
57     , m_externalMemoryAllocated(0)
58 {
59     adjustExternalMemoryAllocated(externalMemoryAllocated);
60 }
61
62 Pattern::~Pattern()
63 {
64     adjustExternalMemoryAllocated(-m_externalMemoryAllocated);
65 }
66
67 SkShader* Pattern::shader()
68 {
69     if (!m_pattern) {
70         m_pattern = createShader();
71     }
72
73     return m_pattern.get();
74 }
75
76 void Pattern::setPatternSpaceTransform(const AffineTransform& patternSpaceTransformation)
77 {
78     if (patternSpaceTransformation == m_patternSpaceTransformation)
79         return;
80
81     m_patternSpaceTransformation = patternSpaceTransformation;
82     m_pattern.clear();
83 }
84
85 void Pattern::adjustExternalMemoryAllocated(int64_t delta)
86 {
87     delta = std::max(-m_externalMemoryAllocated, delta);
88
89     v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(delta);
90
91     m_externalMemoryAllocated += delta;
92 }
93
94 } // namespace blink