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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #include "config.h" | |
6 #include "core/paint/SVGMaskPainter.h" | |
7 | |
8 #include "core/layout/PaintInfo.h" | |
9 #include "core/layout/svg/LayoutSVGResourceMasker.h" | |
10 #include "core/layout/svg/SVGLayoutSupport.h" | |
fs
2015/03/02 13:24:51
Not needed?
Erik Dahlström (inactive)
2015/03/03 08:42:58
Done.
| |
11 #include "core/paint/CompositingRecorder.h" | |
12 #include "core/paint/TransformRecorder.h" | |
13 #include "platform/graphics/paint/CompositingDisplayItem.h" | |
14 #include "platform/graphics/paint/DisplayItemList.h" | |
15 #include "platform/graphics/paint/DrawingDisplayItem.h" | |
16 | |
17 namespace blink { | |
18 | |
19 bool SVGMaskPainter::prepareEffect(LayoutObject* object, GraphicsContext* contex t) | |
20 { | |
21 ASSERT(object); | |
22 ASSERT(context); | |
23 ASSERT(m_mask.style()); | |
24 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); | |
25 | |
26 m_mask.clearInvalidationMask(); | |
27 | |
28 FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordi nates(); | |
29 if (paintInvalidationRect.isEmpty() || !m_mask.element()->hasChildren()) | |
30 return false; | |
31 | |
32 if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { | |
33 ASSERT(context->displayItemList()); | |
34 context->displayItemList()->add(BeginCompositingDisplayItem::create(obje ct->displayItemClient(), WebCoreCompositeToSkiaComposite(context->compositeOpera tionDeprecated(), WebBlendModeNormal), 1, &paintInvalidationRect)); | |
35 } else { | |
36 BeginCompositingDisplayItem beginCompositingContent(object->displayItemC lient(), WebCoreCompositeToSkiaComposite(context->compositeOperationDeprecated() , WebBlendModeNormal), 1, &paintInvalidationRect); | |
37 beginCompositingContent.replay(context); | |
38 } | |
39 | |
40 return true; | |
41 } | |
42 | |
43 void SVGMaskPainter::finishEffect(LayoutObject* object, GraphicsContext* context ) | |
44 { | |
45 ASSERT(object); | |
46 ASSERT(context); | |
47 ASSERT(m_mask.style()); | |
48 ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); | |
49 | |
50 FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordi nates(); | |
51 { | |
52 ColorFilter maskLayerFilter = m_mask.style()->svgStyle().maskType() == M T_LUMINANCE | |
53 ? ColorFilterLuminanceToAlpha : ColorFilterNone; | |
54 CompositingRecorder maskCompositing(context, object->displayItemClient() , SkXfermode::kDstIn_Mode, 1, &paintInvalidationRect, maskLayerFilter); | |
55 drawMaskForRenderer(context, object->displayItemClient(), object->object BoundingBox()); | |
56 } | |
57 | |
58 if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { | |
59 ASSERT(context->displayItemList()); | |
60 context->displayItemList()->add(EndCompositingDisplayItem::create(object ->displayItemClient())); | |
61 } else { | |
62 EndCompositingDisplayItem endCompositingContent(object->displayItemClien t()); | |
63 endCompositingContent.replay(context); | |
64 } | |
65 } | |
66 | |
67 void SVGMaskPainter::drawMaskForRenderer(GraphicsContext* context, DisplayItemCl ient client, const FloatRect& targetBoundingBox) | |
68 { | |
69 ASSERT(context); | |
70 | |
71 AffineTransform contentTransformation; | |
72 SVGUnitTypes::SVGUnitType contentUnits = toSVGMaskElement(m_mask.element())- >maskContentUnits()->currentValue()->enumValue(); | |
73 if (contentUnits == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) { | |
74 contentTransformation.translate(targetBoundingBox.x(), targetBoundingBox .y()); | |
75 contentTransformation.scaleNonUniform(targetBoundingBox.width(), targetB oundingBox.height()); | |
76 } | |
77 | |
78 if (!m_mask.m_maskContentPicture) { | |
fs
2015/03/02 13:24:51
Maybe this block (transform+content picture setup)
pdr.
2015/03/02 18:57:35
+1
Erik Dahlström (inactive)
2015/03/03 08:42:58
Done.
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79 SubtreeContentTransformScope contentTransformScope(contentTransformation ); | |
80 m_mask.m_maskContentPicture = m_mask.createContentPicture(); | |
81 } | |
82 | |
83 TransformRecorder recorder(*context, client, contentTransformation); | |
84 | |
85 if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { | |
86 ASSERT(context->displayItemList()); | |
87 context->displayItemList()->add(DrawingDisplayItem::create(client, Displ ayItem::SVGMask, m_mask.m_maskContentPicture)); | |
88 } else { | |
89 DrawingDisplayItem maskPicture(client, DisplayItem::SVGMask, m_mask.m_ma skContentPicture); | |
90 maskPicture.replay(context); | |
91 } | |
92 } | |
93 | |
94 } | |
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