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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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248 return m_context.get(); | 248 return m_context.get(); |
249 } | 249 } |
250 | 250 |
251 bool HTMLCanvasElement::shouldBeDirectComposited() const | 251 bool HTMLCanvasElement::shouldBeDirectComposited() const |
252 { | 252 { |
253 return (m_context && m_context->isAccelerated()) || (hasImageBuffer() && buf
fer()->isExpensiveToPaint()) || (!!m_surfaceLayerBridge); | 253 return (m_context && m_context->isAccelerated()) || (hasImageBuffer() && buf
fer()->isExpensiveToPaint()) || (!!m_surfaceLayerBridge); |
254 } | 254 } |
255 | 255 |
256 bool HTMLCanvasElement::isPaintable() const | 256 bool HTMLCanvasElement::isPaintable() const |
257 { | 257 { |
258 if (!m_context) | 258 return (m_context && m_context->isPaintable()) || ImageBuffer::canCreateImag
eBuffer(size()); |
259 return ImageBuffer::canCreateImageBuffer(size()); | |
260 if (m_context->getContextType() == CanvasRenderingContext::ContextImageBitma
p) | |
261 return (renderingContext()->getImage().get()); | |
262 return buffer(); | |
263 } | 259 } |
264 | 260 |
265 void HTMLCanvasElement::didDraw(const FloatRect& rect) | 261 void HTMLCanvasElement::didDraw(const FloatRect& rect) |
266 { | 262 { |
267 if (rect.isEmpty()) | 263 if (rect.isEmpty()) |
268 return; | 264 return; |
269 m_imageBufferIsClear = false; | 265 m_imageBufferIsClear = false; |
270 clearCopiedImage(); | 266 clearCopiedImage(); |
271 if (layoutObject()) | 267 if (layoutObject()) |
272 layoutObject()->setMayNeedPaintInvalidation(); | 268 layoutObject()->setMayNeedPaintInvalidation(); |
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1117 if (!m_context) { | 1113 if (!m_context) { |
1118 *status = NormalSourceImageStatus; | 1114 *status = NormalSourceImageStatus; |
1119 return createTransparentImage(size()); | 1115 return createTransparentImage(size()); |
1120 } | 1116 } |
1121 | 1117 |
1122 if (m_context->is3d()) { | 1118 if (m_context->is3d()) { |
1123 m_context->paintRenderingResultsToCanvas(BackBuffer); | 1119 m_context->paintRenderingResultsToCanvas(BackBuffer); |
1124 } | 1120 } |
1125 | 1121 |
1126 RefPtr<SkImage> skImage; | 1122 RefPtr<SkImage> skImage; |
1127 RefPtr<blink::Image> image = renderingContext()->getImage(); | 1123 RefPtr<blink::Image> image = renderingContext()->getImage(reason); |
1128 | 1124 |
1129 if (image) | 1125 if (image) |
1130 skImage = image->imageForCurrentFrame(); | 1126 skImage = image->imageForCurrentFrame(); |
1131 else | |
1132 skImage = hasImageBuffer() ? buffer()->newSkImageSnapshot(hint, reason)
: createTransparentImage(size())->imageForCurrentFrame(); | |
1133 | 1127 |
1134 if (skImage) { | 1128 if (skImage) { |
1135 *status = NormalSourceImageStatus; | 1129 *status = NormalSourceImageStatus; |
1136 return StaticBitmapImage::create(skImage.release()); | 1130 return StaticBitmapImage::create(skImage.release()); |
1137 } | 1131 } |
1138 | 1132 |
1139 *status = InvalidSourceImageStatus; | 1133 *status = InvalidSourceImageStatus; |
1140 return nullptr; | 1134 return nullptr; |
1141 } | 1135 } |
1142 | 1136 |
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1245 | 1239 |
1246 bool HTMLCanvasElement::createSurfaceLayer() | 1240 bool HTMLCanvasElement::createSurfaceLayer() |
1247 { | 1241 { |
1248 DCHECK(!m_surfaceLayerBridge); | 1242 DCHECK(!m_surfaceLayerBridge); |
1249 std::unique_ptr<CanvasSurfaceLayerBridgeClient> bridgeClient = wrapUnique(ne
w CanvasSurfaceLayerBridgeClientImpl()); | 1243 std::unique_ptr<CanvasSurfaceLayerBridgeClient> bridgeClient = wrapUnique(ne
w CanvasSurfaceLayerBridgeClientImpl()); |
1250 m_surfaceLayerBridge = wrapUnique(new CanvasSurfaceLayerBridge(std::move(bri
dgeClient))); | 1244 m_surfaceLayerBridge = wrapUnique(new CanvasSurfaceLayerBridge(std::move(bri
dgeClient))); |
1251 return m_surfaceLayerBridge->createSurfaceLayer(this->width(), this->height(
)); | 1245 return m_surfaceLayerBridge->createSurfaceLayer(this->width(), this->height(
)); |
1252 } | 1246 } |
1253 | 1247 |
1254 } // namespace blink | 1248 } // namespace blink |
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