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| 1 /* | 1 /* |
| 2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> | 3 * Copyright (C) 2007 Alp Toker <alp@atoker.com> |
| 4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. | 4 * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved. |
| 5 * | 5 * |
| 6 * Redistribution and use in source and binary forms, with or without | 6 * Redistribution and use in source and binary forms, with or without |
| 7 * modification, are permitted provided that the following conditions | 7 * modification, are permitted provided that the following conditions |
| 8 * are met: | 8 * are met: |
| 9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
| 10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 */ | 26 */ |
| 27 | 27 |
| 28 #include "config.h" | 28 #include "config.h" |
| 29 #include "core/html/HTMLCanvasElement.h" | 29 #include "core/html/HTMLCanvasElement.h" |
| 30 | 30 |
| 31 #include <math.h> |
| 32 |
| 31 #include "base/bind.h" | 33 #include "base/bind.h" |
| 32 #include "bindings/core/v8/ExceptionMessages.h" | 34 #include "bindings/core/v8/ExceptionMessages.h" |
| 33 #include "bindings/core/v8/ExceptionState.h" | 35 #include "bindings/core/v8/ExceptionState.h" |
| 34 #include "bindings/core/v8/ScriptController.h" | 36 #include "bindings/core/v8/ScriptController.h" |
| 35 #include "core/HTMLNames.h" | |
| 36 #include "core/dom/Document.h" | 37 #include "core/dom/Document.h" |
| 37 #include "core/dom/ExceptionCode.h" | 38 #include "core/dom/ExceptionCode.h" |
| 38 #include "core/dom/Microtask.h" | 39 #include "core/dom/Microtask.h" |
| 39 #include "core/frame/LocalFrame.h" | 40 #include "core/frame/LocalFrame.h" |
| 40 #include "core/frame/Settings.h" | 41 #include "core/frame/Settings.h" |
| 41 #include "core/html/ImageData.h" | |
| 42 #include "core/html/canvas/Canvas2DContextAttributes.h" | 42 #include "core/html/canvas/Canvas2DContextAttributes.h" |
| 43 #include "core/html/canvas/CanvasRenderingContext2D.h" | 43 #include "core/html/canvas/CanvasRenderingContext2D.h" |
| 44 #include "core/html/canvas/WebGLContextAttributes.h" | 44 #include "core/html/canvas/WebGLContextAttributes.h" |
| 45 #include "core/html/canvas/WebGLContextEvent.h" | 45 #include "core/html/canvas/WebGLContextEvent.h" |
| 46 #include "core/html/canvas/WebGLRenderingContext.h" | 46 #include "core/html/canvas/WebGLRenderingContext.h" |
| 47 #include "core/html/ImageData.h" |
| 48 #include "core/HTMLNames.h" |
| 47 #include "core/rendering/RenderHTMLCanvas.h" | 49 #include "core/rendering/RenderHTMLCanvas.h" |
| 48 #include "core/rendering/RenderLayer.h" | 50 #include "core/rendering/RenderLayer.h" |
| 49 #include "platform/MIMETypeRegistry.h" | |
| 50 #include "platform/RuntimeEnabledFeatures.h" | |
| 51 #include "platform/graphics/Canvas2DImageBufferSurface.h" | 51 #include "platform/graphics/Canvas2DImageBufferSurface.h" |
| 52 #include "platform/graphics/gpu/WebGLImageBufferSurface.h" |
| 52 #include "platform/graphics/GraphicsContextStateSaver.h" | 53 #include "platform/graphics/GraphicsContextStateSaver.h" |
| 53 #include "platform/graphics/ImageBuffer.h" | 54 #include "platform/graphics/ImageBuffer.h" |
| 54 #include "platform/graphics/UnacceleratedImageBufferSurface.h" | 55 #include "platform/graphics/UnacceleratedImageBufferSurface.h" |
| 55 #include "platform/graphics/gpu/WebGLImageBufferSurface.h" | 56 #include "platform/MIMETypeRegistry.h" |
| 57 #include "platform/RuntimeEnabledFeatures.h" |
| 56 #include "platform/transforms/AffineTransform.h" | 58 #include "platform/transforms/AffineTransform.h" |
| 57 #include "public/platform/Platform.h" | 59 #include "public/platform/Platform.h" |
| 58 #include <math.h> | 60 #include "v8/include/v8.h" |
| 59 #include <v8.h> | |
| 60 | 61 |
| 61 namespace blink { | 62 namespace blink { |
| 62 | 63 |
| 63 // These values come from the WhatWG spec. | 64 // These values come from the WhatWG spec. |
| 64 static const int DefaultWidth = 300; | 65 static const int DefaultWidth = 300; |
| 65 static const int DefaultHeight = 150; | 66 static const int DefaultHeight = 150; |
| 66 | 67 |
| 67 // Firefox limits width/height to 32767 pixels, but slows down dramatically befo
re it | 68 // Firefox limits width/height to 32767 pixels, but slows down dramatically befo
re it |
| 68 // reaches that limit. We limit by area instead, giving us larger maximum dimens
ions, | 69 // reaches that limit. We limit by area instead, giving us larger maximum dimens
ions, |
| 69 // in exchange for a smaller maximum canvas size. | 70 // in exchange for a smaller maximum canvas size. |
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| 676 } | 677 } |
| 677 return m_imageBuffer->copyImage(DontCopyBackingStore, Unscaled); | 678 return m_imageBuffer->copyImage(DontCopyBackingStore, Unscaled); |
| 678 } | 679 } |
| 679 | 680 |
| 680 FloatSize HTMLCanvasElement::sourceSize() const | 681 FloatSize HTMLCanvasElement::sourceSize() const |
| 681 { | 682 { |
| 682 return FloatSize(width(), height()); | 683 return FloatSize(width(), height()); |
| 683 } | 684 } |
| 684 | 685 |
| 685 } | 686 } |
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