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| 1 /* | 1 /* |
| 2 * Copyright (C) 2007, 2008 Rob Buis <buis@kde.org> | 2 * Copyright (C) 2007, 2008 Rob Buis <buis@kde.org> |
| 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> | 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | 4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
| 5 * Copyright (C) 2009 Google, Inc. All rights reserved. | 5 * Copyright (C) 2009 Google, Inc. All rights reserved. |
| 6 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> | 6 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| 7 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. | 7 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
| 8 * | 8 * |
| 9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
| 10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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| 25 #include "core/paint/SVGPaintContext.h" | 25 #include "core/paint/SVGPaintContext.h" |
| 26 | 26 |
| 27 #include "core/frame/FrameHost.h" | 27 #include "core/frame/FrameHost.h" |
| 28 #include "core/layout/svg/LayoutSVGResourceFilter.h" | 28 #include "core/layout/svg/LayoutSVGResourceFilter.h" |
| 29 #include "core/layout/svg/LayoutSVGResourceMasker.h" | 29 #include "core/layout/svg/LayoutSVGResourceMasker.h" |
| 30 #include "core/layout/svg/SVGLayoutSupport.h" | 30 #include "core/layout/svg/SVGLayoutSupport.h" |
| 31 #include "core/layout/svg/SVGResources.h" | 31 #include "core/layout/svg/SVGResources.h" |
| 32 #include "core/layout/svg/SVGResourcesCache.h" | 32 #include "core/layout/svg/SVGResourcesCache.h" |
| 33 #include "core/paint/SVGMaskPainter.h" | 33 #include "core/paint/SVGMaskPainter.h" |
| 34 #include "platform/FloatConversion.h" | 34 #include "platform/FloatConversion.h" |
| 35 #include "wtf/PtrUtil.h" |
| 35 | 36 |
| 36 namespace blink { | 37 namespace blink { |
| 37 | 38 |
| 38 SVGPaintContext::~SVGPaintContext() | 39 SVGPaintContext::~SVGPaintContext() |
| 39 { | 40 { |
| 40 if (m_filter) { | 41 if (m_filter) { |
| 41 ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(&m_object)); | 42 ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(&m_object)); |
| 42 ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(&m_object)->fil
ter() == m_filter); | 43 ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(&m_object)->fil
ter() == m_filter); |
| 43 ASSERT(m_filterRecordingContext); | 44 ASSERT(m_filterRecordingContext); |
| 44 SVGFilterPainter(*m_filter).finishEffect(m_object, *m_filterRecordingCon
text); | 45 SVGFilterPainter(*m_filter).finishEffect(m_object, *m_filterRecordingCon
text); |
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| 82 if (!applyClipIfNecessary(resources)) | 83 if (!applyClipIfNecessary(resources)) |
| 83 return false; | 84 return false; |
| 84 | 85 |
| 85 if (!applyMaskIfNecessary(resources)) | 86 if (!applyMaskIfNecessary(resources)) |
| 86 return false; | 87 return false; |
| 87 | 88 |
| 88 if (!applyFilterIfNecessary(resources)) | 89 if (!applyFilterIfNecessary(resources)) |
| 89 return false; | 90 return false; |
| 90 | 91 |
| 91 if (!isIsolationInstalled() && SVGLayoutSupport::isIsolationRequired(&m_obje
ct)) | 92 if (!isIsolationInstalled() && SVGLayoutSupport::isIsolationRequired(&m_obje
ct)) |
| 92 m_compositingRecorder = adoptPtr(new CompositingRecorder(paintInfo().con
text, m_object, SkXfermode::kSrcOver_Mode, 1)); | 93 m_compositingRecorder = wrapUnique(new CompositingRecorder(paintInfo().c
ontext, m_object, SkXfermode::kSrcOver_Mode, 1)); |
| 93 | 94 |
| 94 return true; | 95 return true; |
| 95 } | 96 } |
| 96 | 97 |
| 97 void SVGPaintContext::applyCompositingIfNecessary() | 98 void SVGPaintContext::applyCompositingIfNecessary() |
| 98 { | 99 { |
| 99 ASSERT(!paintInfo().isRenderingClipPathAsMaskImage()); | 100 ASSERT(!paintInfo().isRenderingClipPathAsMaskImage()); |
| 100 | 101 |
| 101 // Layer takes care of root opacity and blend mode. | 102 // Layer takes care of root opacity and blend mode. |
| 102 if (m_object.isSVGRoot()) | 103 if (m_object.isSVGRoot()) |
| 103 return; | 104 return; |
| 104 | 105 |
| 105 const ComputedStyle& style = m_object.styleRef(); | 106 const ComputedStyle& style = m_object.styleRef(); |
| 106 float opacity = style.opacity(); | 107 float opacity = style.opacity(); |
| 107 WebBlendMode blendMode = style.hasBlendMode() && m_object.isBlendingAllowed(
) ? | 108 WebBlendMode blendMode = style.hasBlendMode() && m_object.isBlendingAllowed(
) ? |
| 108 style.blendMode() : WebBlendModeNormal; | 109 style.blendMode() : WebBlendModeNormal; |
| 109 if (opacity < 1 || blendMode != WebBlendModeNormal) { | 110 if (opacity < 1 || blendMode != WebBlendModeNormal) { |
| 110 const FloatRect compositingBounds = m_object.paintInvalidationRectInLoca
lSVGCoordinates(); | 111 const FloatRect compositingBounds = m_object.paintInvalidationRectInLoca
lSVGCoordinates(); |
| 111 m_compositingRecorder = adoptPtr(new CompositingRecorder(paintInfo().con
text, m_object, | 112 m_compositingRecorder = wrapUnique(new CompositingRecorder(paintInfo().c
ontext, m_object, |
| 112 WebCoreCompositeToSkiaComposite(CompositeSourceOver, blendMode), opa
city, &compositingBounds)); | 113 WebCoreCompositeToSkiaComposite(CompositeSourceOver, blendMode), opa
city, &compositingBounds)); |
| 113 } | 114 } |
| 114 } | 115 } |
| 115 | 116 |
| 116 bool SVGPaintContext::applyClipIfNecessary(SVGResources* resources) | 117 bool SVGPaintContext::applyClipIfNecessary(SVGResources* resources) |
| 117 { | 118 { |
| 118 // resources->clipper() corresponds to the non-prefixed 'clip-path' whereas | 119 // resources->clipper() corresponds to the non-prefixed 'clip-path' whereas |
| 119 // m_object.style()->clipPath() corresponds to '-webkit-clip-path'. | 120 // m_object.style()->clipPath() corresponds to '-webkit-clip-path'. |
| 120 // FIXME: We should unify the clip-path and -webkit-clip-path codepaths. | 121 // FIXME: We should unify the clip-path and -webkit-clip-path codepaths. |
| 121 if (LayoutSVGResourceClipper* clipper = resources ? resources->clipper() : n
ullptr) { | 122 if (LayoutSVGResourceClipper* clipper = resources ? resources->clipper() : n
ullptr) { |
| 122 if (!SVGClipPainter(*clipper).prepareEffect(m_object, m_object.objectBou
ndingBox(), m_object.paintInvalidationRectInLocalSVGCoordinates(), paintInfo().c
ontext, m_clipperState)) | 123 if (!SVGClipPainter(*clipper).prepareEffect(m_object, m_object.objectBou
ndingBox(), m_object.paintInvalidationRectInLocalSVGCoordinates(), paintInfo().c
ontext, m_clipperState)) |
| 123 return false; | 124 return false; |
| 124 m_clipper = clipper; | 125 m_clipper = clipper; |
| 125 } else { | 126 } else { |
| 126 ClipPathOperation* clipPathOperation = m_object.style()->clipPath(); | 127 ClipPathOperation* clipPathOperation = m_object.style()->clipPath(); |
| 127 if (clipPathOperation && clipPathOperation->type() == ClipPathOperation:
:SHAPE) { | 128 if (clipPathOperation && clipPathOperation->type() == ClipPathOperation:
:SHAPE) { |
| 128 ShapeClipPathOperation* clipPath = toShapeClipPathOperation(clipPath
Operation); | 129 ShapeClipPathOperation* clipPath = toShapeClipPathOperation(clipPath
Operation); |
| 129 if (!clipPath->isValid()) | 130 if (!clipPath->isValid()) |
| 130 return false; | 131 return false; |
| 131 m_clipPathRecorder = adoptPtr(new ClipPathRecorder(paintInfo().conte
xt, m_object, clipPath->path(m_object.objectBoundingBox()))); | 132 m_clipPathRecorder = wrapUnique(new ClipPathRecorder(paintInfo().con
text, m_object, clipPath->path(m_object.objectBoundingBox()))); |
| 132 } | 133 } |
| 133 } | 134 } |
| 134 return true; | 135 return true; |
| 135 } | 136 } |
| 136 | 137 |
| 137 bool SVGPaintContext::applyMaskIfNecessary(SVGResources* resources) | 138 bool SVGPaintContext::applyMaskIfNecessary(SVGResources* resources) |
| 138 { | 139 { |
| 139 if (LayoutSVGResourceMasker* masker = resources ? resources->masker() : null
ptr) { | 140 if (LayoutSVGResourceMasker* masker = resources ? resources->masker() : null
ptr) { |
| 140 if (!SVGMaskPainter(*masker).prepareEffect(m_object, paintInfo().context
)) | 141 if (!SVGMaskPainter(*masker).prepareEffect(m_object, paintInfo().context
)) |
| 141 return false; | 142 return false; |
| 142 m_masker = masker; | 143 m_masker = masker; |
| 143 } | 144 } |
| 144 return true; | 145 return true; |
| 145 } | 146 } |
| 146 | 147 |
| 147 bool SVGPaintContext::applyFilterIfNecessary(SVGResources* resources) | 148 bool SVGPaintContext::applyFilterIfNecessary(SVGResources* resources) |
| 148 { | 149 { |
| 149 if (!resources) { | 150 if (!resources) { |
| 150 if (m_object.style()->svgStyle().hasFilter()) | 151 if (m_object.style()->svgStyle().hasFilter()) |
| 151 return false; | 152 return false; |
| 152 } else if (LayoutSVGResourceFilter* filter = resources->filter()) { | 153 } else if (LayoutSVGResourceFilter* filter = resources->filter()) { |
| 153 m_filterRecordingContext = adoptPtr(new SVGFilterRecordingContext(paintI
nfo().context)); | 154 m_filterRecordingContext = wrapUnique(new SVGFilterRecordingContext(pain
tInfo().context)); |
| 154 m_filter = filter; | 155 m_filter = filter; |
| 155 GraphicsContext* filterContext = SVGFilterPainter(*filter).prepareEffect
(m_object, *m_filterRecordingContext); | 156 GraphicsContext* filterContext = SVGFilterPainter(*filter).prepareEffect
(m_object, *m_filterRecordingContext); |
| 156 if (!filterContext) | 157 if (!filterContext) |
| 157 return false; | 158 return false; |
| 158 | 159 |
| 159 // Because the filter needs to cache its contents we replace the context | 160 // Because the filter needs to cache its contents we replace the context |
| 160 // during filtering with the filter's context. | 161 // during filtering with the filter's context. |
| 161 m_filterPaintInfo = adoptPtr(new PaintInfo(*filterContext, m_paintInfo))
; | 162 m_filterPaintInfo = wrapUnique(new PaintInfo(*filterContext, m_paintInfo
)); |
| 162 | 163 |
| 163 // Because we cache the filter contents and do not invalidate on paint | 164 // Because we cache the filter contents and do not invalidate on paint |
| 164 // invalidation rect changes, we need to paint the entire filter region | 165 // invalidation rect changes, we need to paint the entire filter region |
| 165 // so elements outside the initial paint (due to scrolling, etc) paint. | 166 // so elements outside the initial paint (due to scrolling, etc) paint. |
| 166 m_filterPaintInfo->m_cullRect.m_rect = LayoutRect::infiniteIntRect(); | 167 m_filterPaintInfo->m_cullRect.m_rect = LayoutRect::infiniteIntRect(); |
| 167 } | 168 } |
| 168 return true; | 169 return true; |
| 169 } | 170 } |
| 170 | 171 |
| 171 bool SVGPaintContext::isIsolationInstalled() const | 172 bool SVGPaintContext::isIsolationInstalled() const |
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| 222 // though. | 223 // though. |
| 223 // Additionally, it's not really safe/guaranteed to be correct, as | 224 // Additionally, it's not really safe/guaranteed to be correct, as |
| 224 // something down the paint pipe may want to farther tweak the color | 225 // something down the paint pipe may want to farther tweak the color |
| 225 // filter, which could yield incorrect results. (Consider just using | 226 // filter, which could yield incorrect results. (Consider just using |
| 226 // saveLayer() w/ this color filter explicitly instead.) | 227 // saveLayer() w/ this color filter explicitly instead.) |
| 227 paint.setColorFilter(sk_ref_sp(paintInfo.context.colorFilter())); | 228 paint.setColorFilter(sk_ref_sp(paintInfo.context.colorFilter())); |
| 228 return true; | 229 return true; |
| 229 } | 230 } |
| 230 | 231 |
| 231 } // namespace blink | 232 } // namespace blink |
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