| /* |
| * Copyright 2019 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/SkottieAdapter.h" |
| #include "modules/skottie/src/SkottieJson.h" |
| #include "modules/sksg/include/SkSGOpacityEffect.h" |
| #include "modules/sksg/include/SkSGTransform.h" |
| |
| namespace skottie { |
| namespace internal { |
| |
| namespace { |
| |
| // Transform effects can operate in either uniform or anisotropic mode, with each |
| // component (including mode) animated separately. |
| class ScaleAdapter final : public SkNVRefCnt<ScaleAdapter> { |
| public: |
| explicit ScaleAdapter(sk_sp<TransformAdapter2D> tadapter) |
| : fTransformAdapter(std::move(tadapter)) {} |
| |
| ADAPTER_PROPERTY(IsUniform , bool , false) |
| ADAPTER_PROPERTY(ScaleWidth , SkScalar, 100) |
| ADAPTER_PROPERTY(ScaleHeight, SkScalar, 100) |
| |
| private: |
| void apply() { |
| // In uniform mode, the scale is based solely in ScaleHeight. |
| const auto scale = SkVector::Make(fIsUniform ? fScaleHeight : fScaleWidth, |
| fScaleHeight); |
| fTransformAdapter->setScale(scale); |
| } |
| |
| const sk_sp<TransformAdapter2D> fTransformAdapter; |
| }; |
| |
| } // anonymous ns |
| |
| sk_sp<sksg::RenderNode> EffectBuilder::attachTransformEffect(const skjson::ArrayValue& jprops, |
| sk_sp<sksg::RenderNode> layer) const { |
| enum : size_t { |
| kAnchorPoint_Index = 0, |
| kPosition_Index = 1, |
| kUniformScale_Index = 2, |
| kScaleHeight_Index = 3, |
| kScaleWidth_Index = 4, |
| kSkew_Index = 5, |
| kSkewAxis_Index = 6, |
| kRotation_Index = 7, |
| kOpacity_Index = 8, |
| // kUseCompShutterAngle_Index = 9, |
| // kShutterAngle_Index = 10, |
| // kSampling_Index = 11, |
| }; |
| |
| auto matrix = sksg::Matrix<SkMatrix>::Make(SkMatrix::I()); |
| auto t_adapter = sk_make_sp<TransformAdapter2D>(matrix); |
| auto s_adapter = sk_make_sp<ScaleAdapter>(t_adapter); |
| |
| fBuilder->bindProperty<VectorValue>(GetPropValue(jprops, kAnchorPoint_Index), |
| [t_adapter](const VectorValue& ap) { |
| t_adapter->setAnchorPoint(ValueTraits<VectorValue>::As<SkPoint>(ap)); |
| }); |
| fBuilder->bindProperty<VectorValue>(GetPropValue(jprops, kPosition_Index), |
| [t_adapter](const VectorValue& p) { |
| t_adapter->setPosition(ValueTraits<VectorValue>::As<SkPoint>(p)); |
| }); |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kRotation_Index), |
| [t_adapter](const ScalarValue& r) { |
| t_adapter->setRotation(r); |
| }); |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kSkew_Index), |
| [t_adapter](const ScalarValue& s) { |
| t_adapter->setSkew(s); |
| }); |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kSkewAxis_Index), |
| [t_adapter](const ScalarValue& sa) { |
| t_adapter->setSkewAxis(sa); |
| }); |
| |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kUniformScale_Index), |
| [s_adapter](const ScalarValue& u) { |
| s_adapter->setIsUniform(SkScalarRoundToInt(u)); |
| }); |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kScaleHeight_Index), |
| [s_adapter](const ScalarValue& sh) { |
| s_adapter->setScaleHeight(sh); |
| }); |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kScaleWidth_Index), |
| [s_adapter](const ScalarValue& sw) { |
| s_adapter->setScaleWidth(sw); |
| }); |
| |
| auto opacity_node = sksg::OpacityEffect::Make(sksg::TransformEffect::Make(std::move(layer), |
| std::move(matrix))); |
| |
| fBuilder->bindProperty<ScalarValue>(GetPropValue(jprops, kOpacity_Index), |
| [opacity_node](const ScalarValue& o) { |
| opacity_node->setOpacity(o * 0.01f); |
| }); |
| |
| return opacity_node; |
| } |
| |
| } // namespace internal |
| } // namespace skottie |