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Side by Side Diff: third_party/WebKit/Source/platform/graphics/Image.h

Issue 1925533003: High CPU and increased memory usage fix for high-res (GIF, WEBP...) animations. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebasing. DCHECK. Thanks fmalita@. Created 4 years, 7 months ago
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1 /* 1 /*
2 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) 2 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved.
4 * 4 *
5 * Redistribution and use in source and binary forms, with or without 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions 6 * modification, are permitted provided that the following conditions
7 * are met: 7 * are met:
8 * 1. Redistributions of source code must retain the above copyright 8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright 10 * 2. Redistributions in binary form must reproduce the above copyright
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99 IntRect rect() const { return IntRect(IntPoint(), size()); } 99 IntRect rect() const { return IntRect(IntPoint(), size()); }
100 int width() const { return size().width(); } 100 int width() const { return size().width(); }
101 int height() const { return size().height(); } 101 int height() const { return size().height(); }
102 virtual bool getHotSpot(IntPoint&) const { return false; } 102 virtual bool getHotSpot(IntPoint&) const { return false; }
103 103
104 bool setData(PassRefPtr<SharedBuffer> data, bool allDataReceived); 104 bool setData(PassRefPtr<SharedBuffer> data, bool allDataReceived);
105 virtual bool dataChanged(bool /*allDataReceived*/) { return false; } 105 virtual bool dataChanged(bool /*allDataReceived*/) { return false; }
106 106
107 virtual String filenameExtension() const { return String(); } // null string if unknown 107 virtual String filenameExtension() const { return String(); } // null string if unknown
108 108
109 virtual void destroyDecodedData(bool destroyAll) = 0; 109 virtual void destroyDecodedData() = 0;
110 110
111 SharedBuffer* data() { return m_encodedImageData.get(); } 111 SharedBuffer* data() { return m_encodedImageData.get(); }
112 112
113 // Animation begins whenever someone draws the image, so startAnimation() is not normally called. 113 // Animation begins whenever someone draws the image, so startAnimation() is not normally called.
114 // It will automatically pause once all observers no longer want to render t he image anywhere. 114 // It will automatically pause once all observers no longer want to render t he image anywhere.
115 enum CatchUpAnimation { DoNotCatchUp, CatchUp }; 115 enum CatchUpAnimation { DoNotCatchUp, CatchUp };
116 virtual void startAnimation(CatchUpAnimation = CatchUp) { } 116 virtual void startAnimation(CatchUpAnimation = CatchUp) { }
117 virtual void stopAnimation() {}
118 virtual void resetAnimation() {} 117 virtual void resetAnimation() {}
119 118
120 // True if this image can potentially animate. 119 // True if this image can potentially animate.
121 virtual bool maybeAnimated() { return false; } 120 virtual bool maybeAnimated() { return false; }
122 121
123 // Set animationPolicy 122 // Set animationPolicy
124 virtual void setAnimationPolicy(ImageAnimationPolicy) { } 123 virtual void setAnimationPolicy(ImageAnimationPolicy) { }
125 virtual ImageAnimationPolicy animationPolicy() { return ImageAnimationPolicy Allowed; } 124 virtual ImageAnimationPolicy animationPolicy() { return ImageAnimationPolicy Allowed; }
126 virtual void advanceTime(double deltaTimeInSeconds) { } 125 virtual void advanceTime(double deltaTimeInSeconds) { }
127 126
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182 UntracedMember<ImageObserver> m_imageObserver; 181 UntracedMember<ImageObserver> m_imageObserver;
183 bool m_imageObserverDisabled; 182 bool m_imageObserverDisabled;
184 }; 183 };
185 184
186 #define DEFINE_IMAGE_TYPE_CASTS(typeName) \ 185 #define DEFINE_IMAGE_TYPE_CASTS(typeName) \
187 DEFINE_TYPE_CASTS(typeName, Image, image, image->is##typeName(), image.is##t ypeName()) 186 DEFINE_TYPE_CASTS(typeName, Image, image, image->is##typeName(), image.is##t ypeName())
188 187
189 } // namespace blink 188 } // namespace blink
190 189
191 #endif 190 #endif
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