Index: Source/core/paint/SVGMaskPainter.cpp |
diff --git a/Source/core/paint/SVGMaskPainter.cpp b/Source/core/paint/SVGMaskPainter.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..2db6ae15f1acd3b35ed009de75e00697e71a19dd |
--- /dev/null |
+++ b/Source/core/paint/SVGMaskPainter.cpp |
@@ -0,0 +1,94 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "config.h" |
+#include "core/paint/SVGMaskPainter.h" |
+ |
+#include "core/layout/PaintInfo.h" |
+#include "core/layout/svg/LayoutSVGResourceMasker.h" |
+#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.
|
+#include "core/paint/CompositingRecorder.h" |
+#include "core/paint/TransformRecorder.h" |
+#include "platform/graphics/paint/CompositingDisplayItem.h" |
+#include "platform/graphics/paint/DisplayItemList.h" |
+#include "platform/graphics/paint/DrawingDisplayItem.h" |
+ |
+namespace blink { |
+ |
+bool SVGMaskPainter::prepareEffect(LayoutObject* object, GraphicsContext* context) |
+{ |
+ ASSERT(object); |
+ ASSERT(context); |
+ ASSERT(m_mask.style()); |
+ ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); |
+ |
+ m_mask.clearInvalidationMask(); |
+ |
+ FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordinates(); |
+ if (paintInvalidationRect.isEmpty() || !m_mask.element()->hasChildren()) |
+ return false; |
+ |
+ if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { |
+ ASSERT(context->displayItemList()); |
+ context->displayItemList()->add(BeginCompositingDisplayItem::create(object->displayItemClient(), WebCoreCompositeToSkiaComposite(context->compositeOperationDeprecated(), WebBlendModeNormal), 1, &paintInvalidationRect)); |
+ } else { |
+ BeginCompositingDisplayItem beginCompositingContent(object->displayItemClient(), WebCoreCompositeToSkiaComposite(context->compositeOperationDeprecated(), WebBlendModeNormal), 1, &paintInvalidationRect); |
+ beginCompositingContent.replay(context); |
+ } |
+ |
+ return true; |
+} |
+ |
+void SVGMaskPainter::finishEffect(LayoutObject* object, GraphicsContext* context) |
+{ |
+ ASSERT(object); |
+ ASSERT(context); |
+ ASSERT(m_mask.style()); |
+ ASSERT_WITH_SECURITY_IMPLICATION(!m_mask.needsLayout()); |
+ |
+ FloatRect paintInvalidationRect = object->paintInvalidationRectInLocalCoordinates(); |
+ { |
+ ColorFilter maskLayerFilter = m_mask.style()->svgStyle().maskType() == MT_LUMINANCE |
+ ? ColorFilterLuminanceToAlpha : ColorFilterNone; |
+ CompositingRecorder maskCompositing(context, object->displayItemClient(), SkXfermode::kDstIn_Mode, 1, &paintInvalidationRect, maskLayerFilter); |
+ drawMaskForRenderer(context, object->displayItemClient(), object->objectBoundingBox()); |
+ } |
+ |
+ if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { |
+ ASSERT(context->displayItemList()); |
+ context->displayItemList()->add(EndCompositingDisplayItem::create(object->displayItemClient())); |
+ } else { |
+ EndCompositingDisplayItem endCompositingContent(object->displayItemClient()); |
+ endCompositingContent.replay(context); |
+ } |
+} |
+ |
+void SVGMaskPainter::drawMaskForRenderer(GraphicsContext* context, DisplayItemClient client, const FloatRect& targetBoundingBox) |
+{ |
+ ASSERT(context); |
+ |
+ AffineTransform contentTransformation; |
+ SVGUnitTypes::SVGUnitType contentUnits = toSVGMaskElement(m_mask.element())->maskContentUnits()->currentValue()->enumValue(); |
+ if (contentUnits == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) { |
+ contentTransformation.translate(targetBoundingBox.x(), targetBoundingBox.y()); |
+ contentTransformation.scaleNonUniform(targetBoundingBox.width(), targetBoundingBox.height()); |
+ } |
+ |
+ 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.
|
+ SubtreeContentTransformScope contentTransformScope(contentTransformation); |
+ m_mask.m_maskContentPicture = m_mask.createContentPicture(); |
+ } |
+ |
+ TransformRecorder recorder(*context, client, contentTransformation); |
+ |
+ if (RuntimeEnabledFeatures::slimmingPaintEnabled()) { |
+ ASSERT(context->displayItemList()); |
+ context->displayItemList()->add(DrawingDisplayItem::create(client, DisplayItem::SVGMask, m_mask.m_maskContentPicture)); |
+ } else { |
+ DrawingDisplayItem maskPicture(client, DisplayItem::SVGMask, m_mask.m_maskContentPicture); |
+ maskPicture.replay(context); |
+ } |
+} |
+ |
+} |