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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "config.h" | 5 #include "config.h" |
6 #include "core/html/canvas/CanvasRenderingContext2D.h" | 6 #include "core/html/canvas/CanvasRenderingContext2D.h" |
7 | 7 |
8 #include "core/frame/FrameView.h" | 8 #include "core/frame/FrameView.h" |
9 #include "core/frame/ImageBitmap.h" | 9 #include "core/frame/ImageBitmap.h" |
10 #include "core/html/HTMLDocument.h" | 10 #include "core/html/HTMLDocument.h" |
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78 HTMLCanvasElement& canvasElement() const { return *m_canvasElement; } | 78 HTMLCanvasElement& canvasElement() const { return *m_canvasElement; } |
79 CanvasRenderingContext2D* context2d() const { return static_cast<CanvasRende
ringContext2D*>(canvasElement().renderingContext()); } | 79 CanvasRenderingContext2D* context2d() const { return static_cast<CanvasRende
ringContext2D*>(canvasElement().renderingContext()); } |
80 | 80 |
81 void createContext(OpacityMode); | 81 void createContext(OpacityMode); |
82 | 82 |
83 private: | 83 private: |
84 OwnPtr<DummyPageHolder> m_dummyPageHolder; | 84 OwnPtr<DummyPageHolder> m_dummyPageHolder; |
85 RefPtrWillBePersistent<HTMLDocument> m_document; | 85 RefPtrWillBePersistent<HTMLDocument> m_document; |
86 RefPtrWillBePersistent<HTMLCanvasElement> m_canvasElement; | 86 RefPtrWillBePersistent<HTMLCanvasElement> m_canvasElement; |
87 | 87 |
| 88 class WrapGradients final : public NoBaseWillBeGarbageCollectedFinalized<Wra
pGradients> { |
| 89 public: |
| 90 static PassOwnPtrWillBeRawPtr<WrapGradients> create() |
| 91 { |
| 92 return adoptPtrWillBeNoop(new WrapGradients); |
| 93 } |
| 94 |
| 95 DEFINE_INLINE_TRACE() |
| 96 { |
| 97 visitor->trace(m_opaqueGradient); |
| 98 visitor->trace(m_alphaGradient); |
| 99 } |
| 100 |
| 101 StringOrCanvasGradientOrCanvasPattern m_opaqueGradient; |
| 102 StringOrCanvasGradientOrCanvasPattern m_alphaGradient; |
| 103 }; |
| 104 |
| 105 // TODO(Oilpan): avoid tedious part-object wrapper by supporting on-heap ::t
esting::Tests. |
| 106 OwnPtrWillBePersistent<WrapGradients> m_wrapGradients; |
| 107 |
88 protected: | 108 protected: |
89 // Pre-canned objects for testing | 109 // Pre-canned objects for testing |
90 Persistent<ImageData> m_fullImageData; | 110 Persistent<ImageData> m_fullImageData; |
91 Persistent<ImageData> m_partialImageData; | 111 Persistent<ImageData> m_partialImageData; |
92 FakeImageSource m_opaqueBitmap; | 112 FakeImageSource m_opaqueBitmap; |
93 FakeImageSource m_alphaBitmap; | 113 FakeImageSource m_alphaBitmap; |
94 StringOrCanvasGradientOrCanvasPattern m_opaqueGradient; | 114 |
95 StringOrCanvasGradientOrCanvasPattern m_alphaGradient; | 115 StringOrCanvasGradientOrCanvasPattern& opaqueGradient() { return m_wrapGradi
ents->m_opaqueGradient; } |
| 116 StringOrCanvasGradientOrCanvasPattern& alphaGradient() { return m_wrapGradie
nts->m_alphaGradient; } |
96 }; | 117 }; |
97 | 118 |
98 CanvasRenderingContext2DTest::CanvasRenderingContext2DTest() | 119 CanvasRenderingContext2DTest::CanvasRenderingContext2DTest() |
99 : m_opaqueBitmap(IntSize(10, 10), OpaqueBitmap) | 120 : m_wrapGradients(WrapGradients::create()) |
| 121 , m_opaqueBitmap(IntSize(10, 10), OpaqueBitmap) |
100 , m_alphaBitmap(IntSize(10, 10), TransparentBitmap) | 122 , m_alphaBitmap(IntSize(10, 10), TransparentBitmap) |
101 { } | 123 { } |
102 | 124 |
103 void CanvasRenderingContext2DTest::createContext(OpacityMode opacityMode) | 125 void CanvasRenderingContext2DTest::createContext(OpacityMode opacityMode) |
104 { | 126 { |
105 String canvasType("2d"); | 127 String canvasType("2d"); |
106 CanvasContextCreationAttributes attributes; | 128 CanvasContextCreationAttributes attributes; |
107 attributes.setAlpha(opacityMode == NonOpaque); | 129 attributes.setAlpha(opacityMode == NonOpaque); |
108 CanvasRenderingContext2DOrWebGLRenderingContext result; | 130 CanvasRenderingContext2DOrWebGLRenderingContext result; |
109 m_canvasElement->getContext(canvasType, attributes, result); | 131 m_canvasElement->getContext(canvasType, attributes, result); |
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121 | 143 |
122 m_fullImageData = ImageData::create(IntSize(10, 10)); | 144 m_fullImageData = ImageData::create(IntSize(10, 10)); |
123 m_partialImageData = ImageData::create(IntSize(2, 2)); | 145 m_partialImageData = ImageData::create(IntSize(2, 2)); |
124 | 146 |
125 NonThrowableExceptionState exceptionState; | 147 NonThrowableExceptionState exceptionState; |
126 RefPtrWillBeRawPtr<CanvasGradient> opaqueGradient = CanvasGradient::create(F
loatPoint(0, 0), FloatPoint(10, 0)); | 148 RefPtrWillBeRawPtr<CanvasGradient> opaqueGradient = CanvasGradient::create(F
loatPoint(0, 0), FloatPoint(10, 0)); |
127 opaqueGradient->addColorStop(0, String("green"), exceptionState); | 149 opaqueGradient->addColorStop(0, String("green"), exceptionState); |
128 EXPECT_FALSE(exceptionState.hadException()); | 150 EXPECT_FALSE(exceptionState.hadException()); |
129 opaqueGradient->addColorStop(1, String("blue"), exceptionState); | 151 opaqueGradient->addColorStop(1, String("blue"), exceptionState); |
130 EXPECT_FALSE(exceptionState.hadException()); | 152 EXPECT_FALSE(exceptionState.hadException()); |
131 m_opaqueGradient.setCanvasGradient(opaqueGradient); | 153 this->opaqueGradient().setCanvasGradient(opaqueGradient); |
132 | 154 |
133 RefPtrWillBeRawPtr<CanvasGradient> alphaGradient = CanvasGradient::create(Fl
oatPoint(0, 0), FloatPoint(10, 0)); | 155 RefPtrWillBeRawPtr<CanvasGradient> alphaGradient = CanvasGradient::create(Fl
oatPoint(0, 0), FloatPoint(10, 0)); |
134 alphaGradient->addColorStop(0, String("green"), exceptionState); | 156 alphaGradient->addColorStop(0, String("green"), exceptionState); |
135 EXPECT_FALSE(exceptionState.hadException()); | 157 EXPECT_FALSE(exceptionState.hadException()); |
136 alphaGradient->addColorStop(1, String("rgba(0, 0, 255, 0.5)"), exceptionStat
e); | 158 alphaGradient->addColorStop(1, String("rgba(0, 0, 255, 0.5)"), exceptionStat
e); |
137 EXPECT_FALSE(exceptionState.hadException()); | 159 EXPECT_FALSE(exceptionState.hadException()); |
138 StringOrCanvasGradientOrCanvasPattern wrappedAlphaGradient; | 160 StringOrCanvasGradientOrCanvasPattern wrappedAlphaGradient; |
139 m_alphaGradient.setCanvasGradient(alphaGradient); | 161 this->alphaGradient().setCanvasGradient(alphaGradient); |
140 } | 162 } |
141 | 163 |
142 //============================================================================ | 164 //============================================================================ |
143 | 165 |
144 class MockImageBufferSurfaceForOverwriteTesting : public UnacceleratedImageBuffe
rSurface { | 166 class MockImageBufferSurfaceForOverwriteTesting : public UnacceleratedImageBuffe
rSurface { |
145 public: | 167 public: |
146 MockImageBufferSurfaceForOverwriteTesting(const IntSize& size, OpacityMode m
ode) : UnacceleratedImageBufferSurface(size, mode) { } | 168 MockImageBufferSurfaceForOverwriteTesting(const IntSize& size, OpacityMode m
ode) : UnacceleratedImageBufferSurface(size, mode) { } |
147 virtual ~MockImageBufferSurfaceForOverwriteTesting() { } | 169 virtual ~MockImageBufferSurfaceForOverwriteTesting() { } |
148 bool isRecording() const override { return true; } // otherwise overwrites a
re not tracked | 170 bool isRecording() const override { return true; } // otherwise overwrites a
re not tracked |
149 | 171 |
150 MOCK_METHOD0(willOverwriteCanvas, void()); | 172 MOCK_METHOD0(willOverwriteCanvas, void()); |
151 }; | 173 }; |
152 | 174 |
153 //============================================================================ | 175 //============================================================================ |
154 | 176 |
155 class MockCanvasObserver : public NoBaseWillBeGarbageCollectedFinalized<MockCanv
asObserver>, public CanvasObserver { | 177 class MockCanvasObserver final : public NoBaseWillBeGarbageCollectedFinalized<Mo
ckCanvasObserver>, public CanvasObserver { |
156 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MockCanvasObserver); | 178 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MockCanvasObserver); |
157 public: | 179 public: |
158 static PassOwnPtrWillBeRawPtr<MockCanvasObserver> create() | 180 static PassOwnPtrWillBeRawPtr<MockCanvasObserver> create() |
159 { | 181 { |
160 return adoptPtrWillBeNoop(new MockCanvasObserver); | 182 return adoptPtrWillBeNoop(new MockCanvasObserver); |
161 } | 183 } |
162 | 184 |
| 185 DEFINE_INLINE_VIRTUAL_TRACE() |
| 186 { |
| 187 CanvasObserver::trace(visitor); |
| 188 } |
| 189 |
| 190 |
163 virtual ~MockCanvasObserver() { } | 191 virtual ~MockCanvasObserver() { } |
164 MOCK_METHOD2(canvasChanged, void(HTMLCanvasElement*, const FloatRect&)); | 192 MOCK_METHOD2(canvasChanged, void(HTMLCanvasElement*, const FloatRect&)); |
165 MOCK_METHOD1(canvasResized, void(HTMLCanvasElement*)); | 193 MOCK_METHOD1(canvasResized, void(HTMLCanvasElement*)); |
166 #if !ENABLE(OILPAN) | 194 #if !ENABLE(OILPAN) |
167 void canvasDestroyed(HTMLCanvasElement*) override { }; | 195 void canvasDestroyed(HTMLCanvasElement*) override { }; |
168 #endif | 196 #endif |
169 }; | 197 }; |
170 | 198 |
171 //============================================================================ | 199 //============================================================================ |
172 | 200 |
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254 { | 282 { |
255 createContext(NonOpaque); | 283 createContext(NonOpaque); |
256 | 284 |
257 TEST_OVERDRAW_1(1, fillRect(-1, -1, 12, 12)); | 285 TEST_OVERDRAW_1(1, fillRect(-1, -1, 12, 12)); |
258 TEST_OVERDRAW_1(1, fillRect(0, 0, 10, 10)); | 286 TEST_OVERDRAW_1(1, fillRect(0, 0, 10, 10)); |
259 TEST_OVERDRAW_1(0, strokeRect(0, 0, 10, 10)); // stroking instead of filling
does not overwrite | 287 TEST_OVERDRAW_1(0, strokeRect(0, 0, 10, 10)); // stroking instead of filling
does not overwrite |
260 TEST_OVERDRAW_2(0, setGlobalAlpha(0.5f), fillRect(0, 0, 10, 10)); | 288 TEST_OVERDRAW_2(0, setGlobalAlpha(0.5f), fillRect(0, 0, 10, 10)); |
261 TEST_OVERDRAW_1(0, fillRect(0, 0, 9, 9)); | 289 TEST_OVERDRAW_1(0, fillRect(0, 0, 9, 9)); |
262 TEST_OVERDRAW_2(0, translate(1, 1), fillRect(0, 0, 10, 10)); | 290 TEST_OVERDRAW_2(0, translate(1, 1), fillRect(0, 0, 10, 10)); |
263 TEST_OVERDRAW_2(1, translate(1, 1), fillRect(-1, -1, 10, 10)); | 291 TEST_OVERDRAW_2(1, translate(1, 1), fillRect(-1, -1, 10, 10)); |
264 TEST_OVERDRAW_2(1, setFillStyle(m_opaqueGradient), fillRect(0, 0, 10, 10)); | 292 TEST_OVERDRAW_2(1, setFillStyle(opaqueGradient()), fillRect(0, 0, 10, 10)); |
265 TEST_OVERDRAW_2(0, setFillStyle(m_alphaGradient), fillRect(0, 0, 10, 10)); | 293 TEST_OVERDRAW_2(0, setFillStyle(alphaGradient()), fillRect(0, 0, 10, 10)); |
266 TEST_OVERDRAW_3(0, setGlobalAlpha(0.5), setFillStyle(m_opaqueGradient), fill
Rect(0, 0, 10, 10)); | 294 TEST_OVERDRAW_3(0, setGlobalAlpha(0.5), setFillStyle(opaqueGradient()), fill
Rect(0, 0, 10, 10)); |
267 TEST_OVERDRAW_3(1, setGlobalAlpha(0.5f), setGlobalCompositeOperation(String(
"copy")), fillRect(0, 0, 10, 10)); | 295 TEST_OVERDRAW_3(1, setGlobalAlpha(0.5f), setGlobalCompositeOperation(String(
"copy")), fillRect(0, 0, 10, 10)); |
268 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("copy")), fillRect(0,
0, 9, 9)); | 296 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("copy")), fillRect(0,
0, 9, 9)); |
269 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), fillRect(0, 0, 10, 10)); | 297 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), fillRect(0, 0, 10, 10)); |
270 TEST_OVERDRAW_4(0, rect(0, 0, 5, 5), clip(), setGlobalCompositeOperation(Str
ing("copy")), fillRect(0, 0, 10, 10)); | 298 TEST_OVERDRAW_4(0, rect(0, 0, 5, 5), clip(), setGlobalCompositeOperation(Str
ing("copy")), fillRect(0, 0, 10, 10)); |
271 } | 299 } |
272 | 300 |
273 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithClearRect) | 301 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithClearRect) |
274 { | 302 { |
275 createContext(NonOpaque); | 303 createContext(NonOpaque); |
276 | 304 |
277 TEST_OVERDRAW_1(1, clearRect(0, 0, 10, 10)); | 305 TEST_OVERDRAW_1(1, clearRect(0, 0, 10, 10)); |
278 TEST_OVERDRAW_1(0, clearRect(0, 0, 9, 9)); | 306 TEST_OVERDRAW_1(0, clearRect(0, 0, 9, 9)); |
279 TEST_OVERDRAW_2(1, setGlobalAlpha(0.5f), clearRect(0, 0, 10, 10)); | 307 TEST_OVERDRAW_2(1, setGlobalAlpha(0.5f), clearRect(0, 0, 10, 10)); |
280 TEST_OVERDRAW_2(1, setFillStyle(m_alphaGradient), clearRect(0, 0, 10, 10)); | 308 TEST_OVERDRAW_2(1, setFillStyle(alphaGradient()), clearRect(0, 0, 10, 10)); |
281 TEST_OVERDRAW_2(0, translate(1, 1), clearRect(0, 0, 10, 10)); | 309 TEST_OVERDRAW_2(0, translate(1, 1), clearRect(0, 0, 10, 10)); |
282 TEST_OVERDRAW_2(1, translate(1, 1), clearRect(-1, -1, 10, 10)); | 310 TEST_OVERDRAW_2(1, translate(1, 1), clearRect(-1, -1, 10, 10)); |
283 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("destination-in")), cl
earRect(0, 0, 10, 10)); // composite op ignored | 311 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("destination-in")), cl
earRect(0, 0, 10, 10)); // composite op ignored |
284 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), clearRect(0, 0, 10, 10)); | 312 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), clearRect(0, 0, 10, 10)); |
285 } | 313 } |
286 | 314 |
287 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithDrawImage) | 315 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithDrawImage) |
288 { | 316 { |
289 createContext(NonOpaque); | 317 createContext(NonOpaque); |
290 NonThrowableExceptionState exceptionState; | 318 NonThrowableExceptionState exceptionState; |
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302 TEST_OVERDRAW_1(0, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 1, 0, 10, 10, ex
ceptionState)); | 330 TEST_OVERDRAW_1(0, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 1, 0, 10, 10, ex
ceptionState)); |
303 EXPECT_FALSE(exceptionState.hadException()); | 331 EXPECT_FALSE(exceptionState.hadException()); |
304 TEST_OVERDRAW_1(0, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 0, 0, 9, 9, exce
ptionState)); | 332 TEST_OVERDRAW_1(0, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 0, 0, 9, 9, exce
ptionState)); |
305 EXPECT_FALSE(exceptionState.hadException()); | 333 EXPECT_FALSE(exceptionState.hadException()); |
306 TEST_OVERDRAW_1(1, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 0, 0, 11, 11, ex
ceptionState)); | 334 TEST_OVERDRAW_1(1, drawImage(&m_opaqueBitmap, 0, 0, 10, 10, 0, 0, 11, 11, ex
ceptionState)); |
307 EXPECT_FALSE(exceptionState.hadException()); | 335 EXPECT_FALSE(exceptionState.hadException()); |
308 TEST_OVERDRAW_2(1, translate(-1, 0), drawImage(&m_opaqueBitmap, 0, 0, 10, 10
, 1, 0, 10, 10, exceptionState)); | 336 TEST_OVERDRAW_2(1, translate(-1, 0), drawImage(&m_opaqueBitmap, 0, 0, 10, 10
, 1, 0, 10, 10, exceptionState)); |
309 EXPECT_FALSE(exceptionState.hadException()); | 337 EXPECT_FALSE(exceptionState.hadException()); |
310 TEST_OVERDRAW_2(0, translate(-1, 0), drawImage(&m_opaqueBitmap, 0, 0, 10, 10
, 0, 0, 10, 10, exceptionState)); | 338 TEST_OVERDRAW_2(0, translate(-1, 0), drawImage(&m_opaqueBitmap, 0, 0, 10, 10
, 0, 0, 10, 10, exceptionState)); |
311 EXPECT_FALSE(exceptionState.hadException()); | 339 EXPECT_FALSE(exceptionState.hadException()); |
312 TEST_OVERDRAW_2(0, setFillStyle(m_opaqueGradient), drawImage(&m_alphaBitmap,
0, 0, 10, 10, 0, 0, 10, 10, exceptionState)); // fillStyle ignored by drawImage | 340 TEST_OVERDRAW_2(0, setFillStyle(opaqueGradient()), drawImage(&m_alphaBitmap,
0, 0, 10, 10, 0, 0, 10, 10, exceptionState)); // fillStyle ignored by drawImage |
313 EXPECT_FALSE(exceptionState.hadException()); | 341 EXPECT_FALSE(exceptionState.hadException()); |
314 TEST_OVERDRAW_2(1, setFillStyle(m_alphaGradient), drawImage(&m_opaqueBitmap,
0, 0, 10, 10, 0, 0, 10, 10, exceptionState)); // fillStyle ignored by drawImage | 342 TEST_OVERDRAW_2(1, setFillStyle(alphaGradient()), drawImage(&m_opaqueBitmap,
0, 0, 10, 10, 0, 0, 10, 10, exceptionState)); // fillStyle ignored by drawImage |
315 EXPECT_FALSE(exceptionState.hadException()); | 343 EXPECT_FALSE(exceptionState.hadException()); |
316 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("copy")), drawImage(&m
_opaqueBitmap, 0, 0, 10, 10, 1, 0, 10, 10, exceptionState)); | 344 TEST_OVERDRAW_2(1, setGlobalCompositeOperation(String("copy")), drawImage(&m
_opaqueBitmap, 0, 0, 10, 10, 1, 0, 10, 10, exceptionState)); |
317 EXPECT_FALSE(exceptionState.hadException()); | 345 EXPECT_FALSE(exceptionState.hadException()); |
318 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), drawImage(&m_opaqueBitmap, 0, 0
, 10, 10, 0, 0, 10, 10, exceptionState)); | 346 TEST_OVERDRAW_3(0, rect(0, 0, 5, 5), clip(), drawImage(&m_opaqueBitmap, 0, 0
, 10, 10, 0, 0, 10, 10, exceptionState)); |
319 EXPECT_FALSE(exceptionState.hadException()); | 347 EXPECT_FALSE(exceptionState.hadException()); |
320 } | 348 } |
321 | 349 |
322 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithPutImageData) | 350 TEST_F(CanvasRenderingContext2DTest, detectOverdrawWithPutImageData) |
323 { | 351 { |
324 createContext(NonOpaque); | 352 createContext(NonOpaque); |
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596 // The canvasChanged notification must be immediate, and not deferred until
paint time | 624 // The canvasChanged notification must be immediate, and not deferred until
paint time |
597 // because offscreen canvases, which are not painted, also need to emit noti
fications. | 625 // because offscreen canvases, which are not painted, also need to emit noti
fications. |
598 EXPECT_CALL(*observer, canvasChanged(&canvasElement(), FloatRect(0, 0, 1, 1)
)).Times(1); | 626 EXPECT_CALL(*observer, canvasChanged(&canvasElement(), FloatRect(0, 0, 1, 1)
)).Times(1); |
599 context2d()->fillRect(0, 0, 1, 1); | 627 context2d()->fillRect(0, 0, 1, 1); |
600 Mock::VerifyAndClearExpectations(observer.get()); | 628 Mock::VerifyAndClearExpectations(observer.get()); |
601 | 629 |
602 canvasElement().removeObserver(observer.get()); | 630 canvasElement().removeObserver(observer.get()); |
603 } | 631 } |
604 | 632 |
605 } // namespace blink | 633 } // namespace blink |
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