| /* |
| * Copyright 2021 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "modules/skottie/src/effects/Effects.h" |
| |
| #include "modules/skottie/src/Adapter.h" |
| #include "modules/skottie/src/SkottieValue.h" |
| #include "modules/sksg/include/SkSGPaint.h" |
| #include "modules/sksg/include/SkSGRenderEffect.h" |
| #include "src/utils/SkJSON.h" |
| |
| namespace skottie::internal { |
| |
| namespace { |
| |
| class DirectionalBlurAdapter final : public DiscardableAdapterBase<DirectionalBlurAdapter, |
| sksg::ExternalImageFilter> { |
| public: |
| DirectionalBlurAdapter(const skjson::ArrayValue& jprops, |
| const AnimationBuilder& abuilder) |
| : INHERITED(sksg::ExternalImageFilter::Make()) |
| { |
| enum : size_t { |
| kDirection_Index = 0, |
| kBlurLength_Index = 1, |
| }; |
| |
| |
| EffectBinder(jprops, abuilder, this) |
| .bind( kDirection_Index, fDirection) |
| .bind( kBlurLength_Index, fBlurLength); |
| } |
| private: |
| void onSync() override { |
| const auto rot = fDirection - 90; |
| auto filter = |
| SkImageFilters::MatrixTransform(SkMatrix::RotateDeg(rot), |
| SkSamplingOptions(SkFilterMode::kLinear), |
| SkImageFilters::Blur(fBlurLength * kBlurSizeToSigma, 0, |
| SkImageFilters::MatrixTransform(SkMatrix::RotateDeg(-rot), |
| SkSamplingOptions(SkFilterMode::kLinear), nullptr))); |
| this->node()->setImageFilter(std::move(filter)); |
| } |
| |
| ScalarValue fDirection = 0; |
| ScalarValue fBlurLength = 0; |
| |
| using INHERITED = DiscardableAdapterBase<DirectionalBlurAdapter, sksg::ExternalImageFilter>; |
| }; |
| |
| } // namespace |
| |
| sk_sp<sksg::RenderNode> EffectBuilder::attachDirectionalBlurEffect(const skjson::ArrayValue& jprops, |
| sk_sp<sksg::RenderNode> layer) const { |
| auto imageFilterNode = fBuilder->attachDiscardableAdapter<DirectionalBlurAdapter>(jprops, |
| *fBuilder); |
| return sksg::ImageFilterEffect::Make(std::move(layer), std::move(imageFilterNode)); |
| } |
| |
| } // namespace skottie::internal |