491911003e
https://www.w3.org/TR/SVG11/masking.html#Masking Implement masking based on a classic two-layers + kSrcIn blending approach. An additional layer is used to filter the mask content (but could be avoided in a pinch -- see inline comments). Also consolidate the objectBoundingBox rect resolution logic as SkSVGRenderContext::resolveOBBRect(). Bug: skia:10842 Change-Id: I273318e97cc28d599d1ecf01706b6117eecb62d5 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/353631 Commit-Queue: Florin Malita <fmalita@chromium.org> Commit-Queue: Florin Malita <fmalita@google.com> Reviewed-by: Tyler Denniston <tdenniston@google.com>
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
/*
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* Copyright 2021 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkSVGMask_DEFINED
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#define SkSVGMask_DEFINED
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#include "modules/svg/include/SkSVGHiddenContainer.h"
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#include "modules/svg/include/SkSVGTypes.h"
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class SkSVGMask final : public SkSVGHiddenContainer {
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public:
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static sk_sp<SkSVGMask> Make() {
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return sk_sp<SkSVGMask>(new SkSVGMask());
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}
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SVG_ATTR(X , SkSVGLength, SkSVGLength(-10, SkSVGLength::Unit::kPercentage))
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SVG_ATTR(Y , SkSVGLength, SkSVGLength(-10, SkSVGLength::Unit::kPercentage))
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SVG_ATTR(Width , SkSVGLength, SkSVGLength(120, SkSVGLength::Unit::kPercentage))
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SVG_ATTR(Height, SkSVGLength, SkSVGLength(120, SkSVGLength::Unit::kPercentage))
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SVG_ATTR(MaskUnits, SkSVGObjectBoundingBoxUnits,
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SkSVGObjectBoundingBoxUnits(SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox))
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SVG_ATTR(MaskContentUnits, SkSVGObjectBoundingBoxUnits,
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SkSVGObjectBoundingBoxUnits(SkSVGObjectBoundingBoxUnits::Type::kUserSpaceOnUse))
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private:
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friend class SkSVGRenderContext;
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SkSVGMask() : INHERITED(SkSVGTag::kMask) {}
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bool parseAndSetAttribute(const char*, const char*) override;
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SkRect bounds(const SkSVGRenderContext&) const;
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void renderMask(const SkSVGRenderContext&) const;
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using INHERITED = SkSVGHiddenContainer;
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};
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#endif // SkSVGMask_DEFINED
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