8cfe718e0c
https://www.w3.org/TR/SVG11/filters.html#feDiffuseLightingElement - Add SkSVGFeDiffuseLighting node - Move distant light source direction computation into a method on SkSVGFeDistantLight - Implement distant and point light sources for feDiffuseLighting Bug: skia:10841 Change-Id: I74b8b9e04be5d2c5ac9f912d015dce96367040a1 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/402645 Reviewed-by: Florin Malita <fmalita@chromium.org> Commit-Queue: Tyler Denniston <tdenniston@google.com>
90 lines
2.4 KiB
C++
90 lines
2.4 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 SkSVGFeLightSource_DEFINED
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#define SkSVGFeLightSource_DEFINED
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#include "include/core/SkPoint3.h"
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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 SkSVGFeLightSource : public SkSVGHiddenContainer {
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public:
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void appendChild(sk_sp<SkSVGNode>) final {
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SkDebugf("cannot append child nodes to an SVG light source.\n");
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}
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protected:
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explicit SkSVGFeLightSource(SkSVGTag tag) : INHERITED(tag) {}
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private:
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using INHERITED = SkSVGHiddenContainer;
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};
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class SkSVGFeDistantLight final : public SkSVGFeLightSource {
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public:
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static sk_sp<SkSVGFeDistantLight> Make() {
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return sk_sp<SkSVGFeDistantLight>(new SkSVGFeDistantLight());
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}
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SkPoint3 computeDirection() const;
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SVG_ATTR(Azimuth , SkSVGNumberType, 0)
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SVG_ATTR(Elevation, SkSVGNumberType, 0)
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private:
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SkSVGFeDistantLight() : INHERITED(SkSVGTag::kFeDistantLight) {}
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bool parseAndSetAttribute(const char*, const char*) override;
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using INHERITED = SkSVGFeLightSource;
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};
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class SkSVGFePointLight final : public SkSVGFeLightSource {
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public:
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static sk_sp<SkSVGFePointLight> Make() {
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return sk_sp<SkSVGFePointLight>(new SkSVGFePointLight());
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}
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SVG_ATTR(X, SkSVGNumberType, 0)
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SVG_ATTR(Y, SkSVGNumberType, 0)
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SVG_ATTR(Z, SkSVGNumberType, 0)
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private:
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SkSVGFePointLight() : INHERITED(SkSVGTag::kFePointLight) {}
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bool parseAndSetAttribute(const char*, const char*) override;
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using INHERITED = SkSVGFeLightSource;
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};
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class SkSVGFeSpotLight final : public SkSVGFeLightSource {
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public:
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static sk_sp<SkSVGFeSpotLight> Make() {
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return sk_sp<SkSVGFeSpotLight>(new SkSVGFeSpotLight());
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}
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SVG_ATTR(X , SkSVGNumberType, 0)
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SVG_ATTR(Y , SkSVGNumberType, 0)
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SVG_ATTR(Z , SkSVGNumberType, 0)
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SVG_ATTR(PointsAtX , SkSVGNumberType, 0)
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SVG_ATTR(PointsAtY , SkSVGNumberType, 0)
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SVG_ATTR(PointsAtZ , SkSVGNumberType, 0)
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SVG_ATTR(SpecularExponent, SkSVGNumberType, 1)
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SVG_OPTIONAL_ATTR(LimitingConeAngle, SkSVGNumberType)
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private:
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SkSVGFeSpotLight() : INHERITED(SkSVGTag::kFeSpotLight) {}
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bool parseAndSetAttribute(const char*, const char*) override;
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using INHERITED = SkSVGFeLightSource;
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};
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#endif // SkSVGFeLightSource_DEFINED
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