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1 /*
2  * Copyright 2019 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef SkottieEffects_DEFINED
9 #define SkottieEffects_DEFINED
10 
11 #include "modules/skottie/src/Composition.h"
12 #include "modules/skottie/src/SkottiePriv.h"
13 #include "modules/skottie/src/animator/Animator.h"
14 
15 class SkMaskFilter;
16 
17 namespace sksg {
18 class MaskShaderEffect;
19 } // namespace sksg
20 
21 namespace skottie {
22 namespace internal {
23 
24 class EffectBuilder final : public SkNoncopyable {
25 public:
26     EffectBuilder(const AnimationBuilder*, const SkSize&, CompositionBuilder*);
27 
28     sk_sp<sksg::RenderNode> attachEffects(const skjson::ArrayValue&,
29                                           sk_sp<sksg::RenderNode>) const;
30 
31     sk_sp<sksg::RenderNode> attachStyles(const skjson::ArrayValue&,
32                                          sk_sp<sksg::RenderNode>) const;
33 
34     static const skjson::Value& GetPropValue(const skjson::ArrayValue& jprops, size_t prop_index);
35 
getLayerBuilder(int layer_index)36     LayerBuilder* getLayerBuilder(int layer_index) const {
37         return fCompBuilder->layerBuilder(layer_index);
38     }
39 
40 private:
41     using EffectBuilderT = sk_sp<sksg::RenderNode>(EffectBuilder::*)(const skjson::ArrayValue&,
42                                                                      sk_sp<sksg::RenderNode>) const;
43 
44     sk_sp<sksg::RenderNode> attachBlackAndWhiteEffect     (const skjson::ArrayValue&,
45                                                            sk_sp<sksg::RenderNode>) const;
46     sk_sp<sksg::RenderNode> attachBrightnessContrastEffect(const skjson::ArrayValue&,
47                                                            sk_sp<sksg::RenderNode>) const;
48     sk_sp<sksg::RenderNode> attachBulgeEffect            (const skjson::ArrayValue&,
49                                                            sk_sp<sksg::RenderNode>) const;
50     sk_sp<sksg::RenderNode> attachCornerPinEffect         (const skjson::ArrayValue&,
51                                                             sk_sp<sksg::RenderNode>) const;
52     sk_sp<sksg::RenderNode> attachCCTonerEffect           (const skjson::ArrayValue&,
53                                                             sk_sp<sksg::RenderNode>) const;
54     sk_sp<sksg::RenderNode> attachDirectionalBlurEffect   (const skjson::ArrayValue&,
55                                                             sk_sp<sksg::RenderNode>) const;
56     sk_sp<sksg::RenderNode> attachDisplacementMapEffect   (const skjson::ArrayValue&,
57                                                            sk_sp<sksg::RenderNode>) const;
58     sk_sp<sksg::RenderNode> attachDropShadowEffect        (const skjson::ArrayValue&,
59                                                            sk_sp<sksg::RenderNode>) const;
60     sk_sp<sksg::RenderNode> attachFillEffect              (const skjson::ArrayValue&,
61                                                            sk_sp<sksg::RenderNode>) const;
62     sk_sp<sksg::RenderNode> attachFractalNoiseEffect      (const skjson::ArrayValue&,
63                                                            sk_sp<sksg::RenderNode>) const;
64     sk_sp<sksg::RenderNode> attachGaussianBlurEffect      (const skjson::ArrayValue&,
65                                                            sk_sp<sksg::RenderNode>) const;
66     sk_sp<sksg::RenderNode> attachGradientEffect          (const skjson::ArrayValue&,
67                                                            sk_sp<sksg::RenderNode>) const;
68     sk_sp<sksg::RenderNode> attachHueSaturationEffect     (const skjson::ArrayValue&,
69                                                            sk_sp<sksg::RenderNode>) const;
70     sk_sp<sksg::RenderNode> attachInvertEffect            (const skjson::ArrayValue&,
71                                                            sk_sp<sksg::RenderNode>) const;
72     sk_sp<sksg::RenderNode> attachEasyLevelsEffect        (const skjson::ArrayValue&,
73                                                            sk_sp<sksg::RenderNode>) const;
74     sk_sp<sksg::RenderNode> attachLinearWipeEffect        (const skjson::ArrayValue&,
75                                                            sk_sp<sksg::RenderNode>) const;
76     sk_sp<sksg::RenderNode> attachMotionTileEffect        (const skjson::ArrayValue&,
77                                                            sk_sp<sksg::RenderNode>) const;
78     sk_sp<sksg::RenderNode> attachProLevelsEffect         (const skjson::ArrayValue&,
79                                                            sk_sp<sksg::RenderNode>) const;
80     sk_sp<sksg::RenderNode> attachRadialWipeEffect        (const skjson::ArrayValue&,
81                                                            sk_sp<sksg::RenderNode>) const;
82     sk_sp<sksg::RenderNode> attachSharpenEffect            (const skjson::ArrayValue&,
83                                                            sk_sp<sksg::RenderNode>) const;
84     sk_sp<sksg::RenderNode> attachShiftChannelsEffect     (const skjson::ArrayValue&,
85                                                            sk_sp<sksg::RenderNode>) const;
86     sk_sp<sksg::RenderNode> attachSkSLColorFilter         (const skjson::ArrayValue&,
87                                                            sk_sp<sksg::RenderNode>) const;
88     sk_sp<sksg::RenderNode> attachSkSLShader              (const skjson::ArrayValue&,
89                                                            sk_sp<sksg::RenderNode>) const;
90     sk_sp<sksg::RenderNode> attachSphereEffect            (const skjson::ArrayValue&,
91                                                            sk_sp<sksg::RenderNode>) const;
92     sk_sp<sksg::RenderNode> attachThresholdEffect         (const skjson::ArrayValue&,
93                                                            sk_sp<sksg::RenderNode>) const;
94     sk_sp<sksg::RenderNode> attachTintEffect              (const skjson::ArrayValue&,
95                                                            sk_sp<sksg::RenderNode>) const;
96     sk_sp<sksg::RenderNode> attachTransformEffect         (const skjson::ArrayValue&,
97                                                            sk_sp<sksg::RenderNode>) const;
98     sk_sp<sksg::RenderNode> attachTritoneEffect           (const skjson::ArrayValue&,
99                                                            sk_sp<sksg::RenderNode>) const;
100     sk_sp<sksg::RenderNode> attachVenetianBlindsEffect    (const skjson::ArrayValue&,
101                                                            sk_sp<sksg::RenderNode>) const;
102 
103     sk_sp<sksg::RenderNode> attachDropShadowStyle(const skjson::ObjectValue&,
104                                                   sk_sp<sksg::RenderNode>) const;
105     sk_sp<sksg::RenderNode> attachInnerShadowStyle(const skjson::ObjectValue&,
106                                                    sk_sp<sksg::RenderNode>) const;
107     sk_sp<sksg::RenderNode> attachInnerGlowStyle(const skjson::ObjectValue&,
108                                                  sk_sp<sksg::RenderNode>) const;
109     sk_sp<sksg::RenderNode> attachOuterGlowStyle(const skjson::ObjectValue&,
110                                                  sk_sp<sksg::RenderNode>) const;
111 
112     EffectBuilderT findBuilder(const skjson::ObjectValue&) const;
113 
114     const AnimationBuilder* fBuilder;
115     CompositionBuilder*     fCompBuilder;
116     const SkSize            fLayerSize;
117 };
118 
119 // Syntactic sugar/helper.
120 class EffectBinder {
121 public:
EffectBinder(const skjson::ArrayValue & jprops,const AnimationBuilder & abuilder,AnimatablePropertyContainer * acontainer)122     EffectBinder(const skjson::ArrayValue& jprops,
123                  const AnimationBuilder& abuilder,
124                  AnimatablePropertyContainer* acontainer)
125         : fProps(jprops)
126         , fBuilder(abuilder)
127         , fContainer(acontainer) {}
128 
129     template <typename T>
bind(size_t prop_index,T & value)130     const EffectBinder& bind(size_t prop_index, T& value) const {
131         fContainer->bind(fBuilder, EffectBuilder::GetPropValue(fProps, prop_index), value);
132 
133         return *this;
134     }
135 
136 private:
137     const skjson::ArrayValue&    fProps;
138     const AnimationBuilder&      fBuilder;
139     AnimatablePropertyContainer* fContainer;
140 };
141 
142 /**
143  * Base class for mask-shader-related effects.
144  */
145 class MaskShaderEffectBase : public AnimatablePropertyContainer {
146 public:
node()147     const sk_sp<sksg::MaskShaderEffect>& node() const { return fMaskEffectNode; }
148 
149 protected:
150     MaskShaderEffectBase(sk_sp<sksg::RenderNode>, const SkSize&);
151 
layerSize()152     const SkSize& layerSize() const { return  fLayerSize; }
153 
154     struct MaskInfo {
155         sk_sp<SkShader> fMaskShader;
156         bool            fVisible;
157     };
158     virtual MaskInfo onMakeMask() const = 0;
159 
160 private:
161     void onSync() final;
162 
163     const sk_sp<sksg::MaskShaderEffect> fMaskEffectNode;
164     const SkSize                        fLayerSize;
165 };
166 
167 } // namespace internal
168 } // namespace skottie
169 
170 #endif // SkottieEffects_DEFINED
171