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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h" | 5 #include "modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h" |
6 | 6 |
7 #include "bindings/modules/v8/OffscreenCanvasRenderingContext2DOrWebGLRenderingC
ontextOrWebGL2RenderingContext.h" | 7 #include "bindings/modules/v8/OffscreenCanvasRenderingContext2DOrWebGLRenderingC
ontextOrWebGL2RenderingContext.h" |
8 #include "core/frame/ImageBitmap.h" | 8 #include "core/frame/ImageBitmap.h" |
9 #include "core/frame/Settings.h" | 9 #include "core/frame/Settings.h" |
10 #include "core/workers/WorkerGlobalScope.h" | 10 #include "core/workers/WorkerGlobalScope.h" |
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46 } | 46 } |
47 | 47 |
48 void OffscreenCanvasRenderingContext2D::commit(ScriptState* scriptState, | 48 void OffscreenCanvasRenderingContext2D::commit(ScriptState* scriptState, |
49 ExceptionState& exceptionState) { | 49 ExceptionState& exceptionState) { |
50 UseCounter::Feature feature = UseCounter::OffscreenCanvasCommit2D; | 50 UseCounter::Feature feature = UseCounter::OffscreenCanvasCommit2D; |
51 UseCounter::count(scriptState->getExecutionContext(), feature); | 51 UseCounter::count(scriptState->getExecutionContext(), feature); |
52 if (getOffscreenCanvas()->getAssociatedCanvasId() < 0) { | 52 if (getOffscreenCanvas()->getAssociatedCanvasId() < 0) { |
53 // If an OffscreenCanvas has no associated canvas Id, it indicates that | 53 // If an OffscreenCanvas has no associated canvas Id, it indicates that |
54 // it is not an OffscreenCanvas created by transfering control from html | 54 // it is not an OffscreenCanvas created by transfering control from html |
55 // canvas. | 55 // canvas. |
56 exceptionState.throwDOMException(InvalidStateError, | 56 exceptionState.throwDOMException( |
57 "Commit() was called on a context whose " | 57 InvalidStateError, |
58 "OffscreenCanvas is not associated with a " | 58 "Commit() was called on a context whose OffscreenCanvas is not " |
59 "canvas element."); | 59 "associated with a canvas element."); |
60 return; | 60 return; |
61 } | 61 } |
62 double commitStartTime = WTF::monotonicallyIncreasingTime(); | 62 double commitStartTime = WTF::monotonicallyIncreasingTime(); |
63 RefPtr<StaticBitmapImage> image = this->transferToStaticBitmapImage(); | 63 RefPtr<StaticBitmapImage> image = this->transferToStaticBitmapImage(); |
64 getOffscreenCanvas()->getOrCreateFrameDispatcher()->dispatchFrame( | 64 getOffscreenCanvas()->getOrCreateFrameDispatcher()->dispatchFrame( |
65 std::move(image), commitStartTime); | 65 std::move(image), commitStartTime); |
66 } | 66 } |
67 | 67 |
68 // BaseRenderingContext2D implementation | 68 // BaseRenderingContext2D implementation |
69 bool OffscreenCanvasRenderingContext2D::originClean() const { | 69 bool OffscreenCanvasRenderingContext2D::originClean() const { |
70 return getOffscreenCanvas()->originClean(); | 70 return getOffscreenCanvas()->originClean(); |
71 } | 71 } |
72 | 72 |
73 void OffscreenCanvasRenderingContext2D::setOriginTainted() { | 73 void OffscreenCanvasRenderingContext2D::setOriginTainted() { |
74 return getOffscreenCanvas()->setOriginTainted(); | 74 return getOffscreenCanvas()->setOriginTainted(); |
75 } | 75 } |
76 | 76 |
77 bool OffscreenCanvasRenderingContext2D::wouldTaintOrigin( | 77 bool OffscreenCanvasRenderingContext2D::wouldTaintOrigin( |
78 CanvasImageSource* source, | 78 CanvasImageSource* source, |
79 ExecutionContext* executionContext) { | 79 ExecutionContext* executionContext) { |
80 if (executionContext->isWorkerGlobalScope()) { | 80 if (executionContext->isWorkerGlobalScope()) { |
81 // We only support passing in ImageBitmap and OffscreenCanvases as source | 81 // We only support passing in ImageBitmap and OffscreenCanvases as |
82 // images in drawImage() or createPattern() in a OffscreenCanvas2d in | 82 // source images in drawImage() or createPattern() in a |
83 // worker. | 83 // OffscreenCanvas2d in worker. |
84 DCHECK(source->isImageBitmap() || source->isOffscreenCanvas()); | 84 DCHECK(source->isImageBitmap() || source->isOffscreenCanvas()); |
85 } | 85 } |
86 | 86 |
87 return CanvasRenderingContext::wouldTaintOrigin( | 87 return CanvasRenderingContext::wouldTaintOrigin( |
88 source, executionContext->getSecurityOrigin()); | 88 source, executionContext->getSecurityOrigin()); |
89 } | 89 } |
90 | 90 |
91 int OffscreenCanvasRenderingContext2D::width() const { | 91 int OffscreenCanvasRenderingContext2D::width() const { |
92 return getOffscreenCanvas()->width(); | 92 return getOffscreenCanvas()->width(); |
93 } | 93 } |
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211 | 211 |
212 AffineTransform OffscreenCanvasRenderingContext2D::baseTransform() const { | 212 AffineTransform OffscreenCanvasRenderingContext2D::baseTransform() const { |
213 if (!m_imageBuffer) | 213 if (!m_imageBuffer) |
214 return AffineTransform(); // identity | 214 return AffineTransform(); // identity |
215 return m_imageBuffer->baseTransform(); | 215 return m_imageBuffer->baseTransform(); |
216 } | 216 } |
217 | 217 |
218 void OffscreenCanvasRenderingContext2D::didDraw(const SkIRect& dirtyRect) {} | 218 void OffscreenCanvasRenderingContext2D::didDraw(const SkIRect& dirtyRect) {} |
219 | 219 |
220 bool OffscreenCanvasRenderingContext2D::stateHasFilter() { | 220 bool OffscreenCanvasRenderingContext2D::stateHasFilter() { |
221 // TODO: crbug.com/593838 make hasFilter accept nullptr | 221 return state().hasFilterForOffscreenCanvas(getOffscreenCanvas()->size()); |
222 // return state().hasFilter(nullptr, nullptr, IntSize(width(), height()), | |
223 // this); | |
224 return false; | |
225 } | 222 } |
226 | 223 |
227 sk_sp<SkImageFilter> OffscreenCanvasRenderingContext2D::stateGetFilter() { | 224 sk_sp<SkImageFilter> OffscreenCanvasRenderingContext2D::stateGetFilter() { |
228 // TODO: make getFilter accept nullptr | 225 return state().getFilterForOffscreenCanvas(getOffscreenCanvas()->size()); |
229 // return state().getFilter(nullptr, nullptr, IntSize(width(), height()), | 226 } |
230 // this); | 227 |
231 return nullptr; | 228 void OffscreenCanvasRenderingContext2D::setFilter(const String& filterString) { |
| 229 BaseRenderingContext2D::setFilter(filterString); |
232 } | 230 } |
233 | 231 |
234 void OffscreenCanvasRenderingContext2D::validateStateStack() const { | 232 void OffscreenCanvasRenderingContext2D::validateStateStack() const { |
235 #if DCHECK_IS_ON() | 233 #if DCHECK_IS_ON() |
236 if (SkCanvas* skCanvas = existingDrawingCanvas()) { | 234 if (SkCanvas* skCanvas = existingDrawingCanvas()) { |
237 DCHECK_EQ(static_cast<size_t>(skCanvas->getSaveCount()), | 235 DCHECK_EQ(static_cast<size_t>(skCanvas->getSaveCount()), |
238 m_stateStack.size() + 1); | 236 m_stateStack.size() + 1); |
239 } | 237 } |
240 #endif | 238 #endif |
241 } | 239 } |
242 | 240 |
243 bool OffscreenCanvasRenderingContext2D::isContextLost() const { | 241 bool OffscreenCanvasRenderingContext2D::isContextLost() const { |
244 return false; | 242 return false; |
245 } | 243 } |
246 | 244 |
247 bool OffscreenCanvasRenderingContext2D::isPaintable() const { | 245 bool OffscreenCanvasRenderingContext2D::isPaintable() const { |
248 return this->imageBuffer(); | 246 return this->imageBuffer(); |
249 } | 247 } |
250 } | 248 } |
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