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Side by Side Diff: third_party/WebKit/Source/core/html/canvas/CanvasImageSource.h

Issue 2026803002: Avoid GPU readback in tex(Sub)Image2D(ImageBitmap) (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: address kbr@'s comments Created 4 years, 6 months ago
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1 /* 1 /*
2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved. 2 * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc. All rights reserved.
3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
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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61 61
62 // Adjusts the source and destination rectangles for cases where the actual 62 // Adjusts the source and destination rectangles for cases where the actual
63 // source image is a subregion of the image returned by getSourceImageForCan vas. 63 // source image is a subregion of the image returned by getSourceImageForCan vas.
64 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const { } 64 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const { }
65 65
66 virtual FloatSize elementSize(const FloatSize& defaultObjectSize) const = 0; 66 virtual FloatSize elementSize(const FloatSize& defaultObjectSize) const = 0;
67 virtual FloatSize defaultDestinationSize(const FloatSize& defaultObjectSize) const { return elementSize(defaultObjectSize); } 67 virtual FloatSize defaultDestinationSize(const FloatSize& defaultObjectSize) const { return elementSize(defaultObjectSize); }
68 virtual const KURL& sourceURL() const { return blankURL(); } 68 virtual const KURL& sourceURL() const { return blankURL(); }
69 virtual bool isOpaque() const { return false; } 69 virtual bool isOpaque() const { return false; }
70 70
71 virtual int sourceWidth() = 0;
72 virtual int sourceHeight() = 0;
73
71 protected: 74 protected:
72 virtual ~CanvasImageSource() { } 75 virtual ~CanvasImageSource() { }
73 }; 76 };
74 77
75 } // namespace blink 78 } // namespace blink
76 79
77 #endif 80 #endif
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