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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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