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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 "core/paint/SVGMaskPainter.h" | 5 #include "core/paint/SVGMaskPainter.h" |
| 6 | 6 |
| 7 #include "core/layout/svg/LayoutSVGResourceMasker.h" | 7 #include "core/layout/svg/LayoutSVGResourceMasker.h" |
| 8 #include "core/paint/LayoutObjectDrawingRecorder.h" | 8 #include "core/paint/LayoutObjectDrawingRecorder.h" |
| 9 #include "core/paint/PaintInfo.h" | 9 #include "core/paint/PaintInfo.h" |
| 10 #include "core/paint/TransformRecorder.h" | 10 #include "core/paint/TransformRecorder.h" |
| 11 #include "platform/graphics/paint/CompositingDisplayItem.h" | 11 #include "platform/graphics/paint/CompositingDisplayItem.h" |
| 12 #include "platform/graphics/paint/CompositingRecorder.h" | 12 #include "platform/graphics/paint/CompositingRecorder.h" |
| 13 #include "platform/graphics/paint/DrawingDisplayItem.h" | 13 #include "platform/graphics/paint/DrawingDisplayItem.h" |
| 14 #include "platform/graphics/paint/PaintController.h" | 14 #include "platform/graphics/paint/PaintController.h" |
| 15 | 15 |
| 16 namespace blink { | 16 namespace blink { |
| 17 | 17 |
| 18 bool SVGMaskPainter::prepareEffect(const LayoutObject& object, GraphicsContext&
context) | 18 bool SVGMaskPainter::prepareEffect(const LayoutObject& object, GraphicsContext&
context) |
| 19 { | 19 { |
| 20 ASSERT(m_mask.style()); | 20 ASSERT(m_mask.style()); |
| 21 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); | 21 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); |
| 22 | 22 |
| 23 m_mask.clearInvalidationMask(); | 23 m_mask.clearInvalidationMask(); |
| 24 | 24 |
| 25 FloatRect paintInvalidationRect = object.paintInvalidationRectInLocalCoordin
ates(); | 25 FloatRect paintInvalidationRect = object.paintInvalidationRectInLocalCoordin
ates(); |
| 26 if (paintInvalidationRect.isEmpty() || !m_mask.element()->hasChildren()) | 26 if (paintInvalidationRect.isEmpty() || !m_mask.element()->hasChildren()) |
| 27 return false; | 27 return false; |
| 28 | 28 |
| 29 context.paintController().createAndAppend<BeginCompositingDisplayItem>(objec
t, SkXfermode::kSrcOver_Mode, 1, &paintInvalidationRect); | 29 context.getPaintController().createAndAppend<BeginCompositingDisplayItem>(ob
ject, SkXfermode::kSrcOver_Mode, 1, &paintInvalidationRect); |
| 30 return true; | 30 return true; |
| 31 } | 31 } |
| 32 | 32 |
| 33 void SVGMaskPainter::finishEffect(const LayoutObject& object, GraphicsContext& c
ontext) | 33 void SVGMaskPainter::finishEffect(const LayoutObject& object, GraphicsContext& c
ontext) |
| 34 { | 34 { |
| 35 ASSERT(m_mask.style()); | 35 ASSERT(m_mask.style()); |
| 36 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); | 36 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); |
| 37 | 37 |
| 38 FloatRect paintInvalidationRect = object.paintInvalidationRectInLocalCoordin
ates(); | 38 FloatRect paintInvalidationRect = object.paintInvalidationRectInLocalCoordin
ates(); |
| 39 { | 39 { |
| 40 ColorFilter maskLayerFilter = m_mask.style()->svgStyle().maskType() == M
T_LUMINANCE | 40 ColorFilter maskLayerFilter = m_mask.style()->svgStyle().maskType() == M
T_LUMINANCE |
| 41 ? ColorFilterLuminanceToAlpha : ColorFilterNone; | 41 ? ColorFilterLuminanceToAlpha : ColorFilterNone; |
| 42 CompositingRecorder maskCompositing(context, object, SkXfermode::kDstIn_
Mode, 1, &paintInvalidationRect, maskLayerFilter); | 42 CompositingRecorder maskCompositing(context, object, SkXfermode::kDstIn_
Mode, 1, &paintInvalidationRect, maskLayerFilter); |
| 43 drawMaskForLayoutObject(context, object, object.objectBoundingBox(), pai
ntInvalidationRect); | 43 drawMaskForLayoutObject(context, object, object.objectBoundingBox(), pai
ntInvalidationRect); |
| 44 } | 44 } |
| 45 | 45 |
| 46 context.paintController().endItem<EndCompositingDisplayItem>(object); | 46 context.getPaintController().endItem<EndCompositingDisplayItem>(object); |
| 47 } | 47 } |
| 48 | 48 |
| 49 void SVGMaskPainter::drawMaskForLayoutObject(GraphicsContext& context, const Lay
outObject& layoutObject, const FloatRect& targetBoundingBox, const FloatRect& ta
rgetPaintInvalidationRect) | 49 void SVGMaskPainter::drawMaskForLayoutObject(GraphicsContext& context, const Lay
outObject& layoutObject, const FloatRect& targetBoundingBox, const FloatRect& ta
rgetPaintInvalidationRect) |
| 50 { | 50 { |
| 51 AffineTransform contentTransformation; | 51 AffineTransform contentTransformation; |
| 52 RefPtr<const SkPicture> maskContentPicture = m_mask.createContentPicture(con
tentTransformation, targetBoundingBox, context); | 52 RefPtr<const SkPicture> maskContentPicture = m_mask.createContentPicture(con
tentTransformation, targetBoundingBox, context); |
| 53 | 53 |
| 54 if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutO
bject, DisplayItem::SVGMask)) | 54 if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(context, layoutO
bject, DisplayItem::SVGMask)) |
| 55 return; | 55 return; |
| 56 | 56 |
| 57 LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayIt
em::SVGMask, targetPaintInvalidationRect); | 57 LayoutObjectDrawingRecorder drawingRecorder(context, layoutObject, DisplayIt
em::SVGMask, targetPaintInvalidationRect); |
| 58 context.save(); | 58 context.save(); |
| 59 context.concatCTM(contentTransformation); | 59 context.concatCTM(contentTransformation); |
| 60 context.drawPicture(maskContentPicture.get()); | 60 context.drawPicture(maskContentPicture.get()); |
| 61 context.restore(); | 61 context.restore(); |
| 62 } | 62 } |
| 63 | 63 |
| 64 } // namespace blink | 64 } // namespace blink |
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