Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 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 SkSGRenderEffect_DEFINED |
| 9 | #define SkSGRenderEffect_DEFINED |
| 10 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 11 | #include "modules/sksg/include/SkSGEffectNode.h" |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 12 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "include/core/SkBlendMode.h" |
| 14 | #include "include/core/SkColor.h" |
Michael Ludwig | 297587b | 2019-08-01 16:40:20 -0400 | [diff] [blame] | 15 | #include "include/effects/SkImageFilters.h" |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 16 | |
| 17 | #include <memory> |
| 18 | #include <vector> |
| 19 | |
| 20 | // TODO: merge EffectNode.h with this header |
| 21 | |
| 22 | class SkImageFilter; |
Florin Malita | 9c47e15 | 2019-06-18 21:13:21 -0400 | [diff] [blame] | 23 | class SkMaskFilter; |
Florin Malita | fb4bce8 | 2019-04-01 13:40:58 -0400 | [diff] [blame] | 24 | class SkShader; |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 25 | |
| 26 | namespace sksg { |
| 27 | |
| 28 | /** |
Florin Malita | fb4bce8 | 2019-04-01 13:40:58 -0400 | [diff] [blame] | 29 | * Shader base class. |
| 30 | */ |
| 31 | class Shader : public Node { |
| 32 | public: |
| 33 | ~Shader() override; |
| 34 | |
| 35 | const sk_sp<SkShader>& getShader() const { |
| 36 | SkASSERT(!this->hasInval()); |
| 37 | return fShader; |
| 38 | } |
| 39 | |
| 40 | protected: |
| 41 | Shader(); |
| 42 | |
| 43 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) final; |
| 44 | |
| 45 | virtual sk_sp<SkShader> onRevalidateShader() = 0; |
| 46 | |
| 47 | private: |
| 48 | sk_sp<SkShader> fShader; |
| 49 | |
| 50 | using INHERITED = Node; |
| 51 | }; |
| 52 | |
| 53 | /** |
| 54 | * Attaches a shader to the render DAG. |
| 55 | */ |
| 56 | class ShaderEffect final : public EffectNode { |
| 57 | public: |
| 58 | ~ShaderEffect() override; |
| 59 | |
Florin Malita | 3d846c9 | 2019-04-02 09:43:18 -0400 | [diff] [blame] | 60 | static sk_sp<ShaderEffect> Make(sk_sp<RenderNode> child, sk_sp<Shader> shader = 0); |
| 61 | |
| 62 | void setShader(sk_sp<Shader>); |
Florin Malita | fb4bce8 | 2019-04-01 13:40:58 -0400 | [diff] [blame] | 63 | |
| 64 | protected: |
| 65 | void onRender(SkCanvas*, const RenderContext*) const override; |
| 66 | |
| 67 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; |
| 68 | |
| 69 | private: |
| 70 | ShaderEffect(sk_sp<RenderNode> child, sk_sp<Shader> shader); |
| 71 | |
Florin Malita | 3d846c9 | 2019-04-02 09:43:18 -0400 | [diff] [blame] | 72 | sk_sp<Shader> fShader; |
Florin Malita | fb4bce8 | 2019-04-01 13:40:58 -0400 | [diff] [blame] | 73 | |
| 74 | using INHERITED = EffectNode; |
| 75 | }; |
| 76 | |
| 77 | /** |
Florin Malita | 4054061 | 2020-03-06 18:41:41 -0500 | [diff] [blame] | 78 | * Attaches a mask shader to the render DAG. |
| 79 | */ |
| 80 | class MaskShaderEffect final : public EffectNode { |
| 81 | public: |
| 82 | static sk_sp<MaskShaderEffect> Make(sk_sp<RenderNode>, sk_sp<SkShader> = nullptr); |
| 83 | |
| 84 | SG_ATTRIBUTE(Shader, sk_sp<SkShader>, fShader) |
| 85 | |
| 86 | protected: |
| 87 | void onRender(SkCanvas*, const RenderContext*) const override; |
| 88 | |
| 89 | private: |
| 90 | MaskShaderEffect(sk_sp<RenderNode>, sk_sp<SkShader>); |
| 91 | |
| 92 | sk_sp<SkShader> fShader; |
| 93 | |
| 94 | using INHERITED = EffectNode; |
| 95 | }; |
| 96 | |
| 97 | /** |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 98 | * ImageFilter base class. |
| 99 | */ |
| 100 | class ImageFilter : public Node { |
| 101 | public: |
| 102 | ~ImageFilter() override; |
| 103 | |
| 104 | const sk_sp<SkImageFilter>& getFilter() const { |
| 105 | SkASSERT(!this->hasInval()); |
| 106 | return fFilter; |
| 107 | } |
| 108 | |
| 109 | protected: |
| 110 | explicit ImageFilter(sk_sp<ImageFilter> input = 0); |
| 111 | |
| 112 | using InputsT = std::vector<sk_sp<ImageFilter>>; |
| 113 | explicit ImageFilter(std::unique_ptr<InputsT> inputs); |
| 114 | |
| 115 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) final; |
| 116 | |
| 117 | virtual sk_sp<SkImageFilter> onRevalidateFilter() = 0; |
| 118 | |
| 119 | sk_sp<SkImageFilter> refInput(size_t) const; |
| 120 | |
| 121 | private: |
| 122 | const std::unique_ptr<InputsT> fInputs; |
| 123 | |
| 124 | sk_sp<SkImageFilter> fFilter; |
| 125 | |
| 126 | using INHERITED = Node; |
| 127 | }; |
| 128 | |
| 129 | /** |
| 130 | * Attaches an ImageFilter (chain) to the render DAG. |
| 131 | */ |
| 132 | class ImageFilterEffect final : public EffectNode { |
| 133 | public: |
| 134 | ~ImageFilterEffect() override; |
| 135 | |
| 136 | static sk_sp<RenderNode> Make(sk_sp<RenderNode> child, sk_sp<ImageFilter> filter); |
| 137 | |
| 138 | protected: |
| 139 | void onRender(SkCanvas*, const RenderContext*) const override; |
Florin Malita | eb46bd8 | 2019-02-12 09:33:21 -0500 | [diff] [blame] | 140 | const RenderNode* onNodeAt(const SkPoint&) const override; |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 141 | |
| 142 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; |
| 143 | |
| 144 | private: |
| 145 | ImageFilterEffect(sk_sp<RenderNode> child, sk_sp<ImageFilter> filter); |
| 146 | |
| 147 | sk_sp<ImageFilter> fImageFilter; |
| 148 | |
| 149 | using INHERITED = EffectNode; |
| 150 | }; |
| 151 | |
| 152 | /** |
Florin Malita | e35a7ea | 2020-04-17 13:08:46 -0400 | [diff] [blame] | 153 | * Wrapper for externally-managed SkImageFilters. |
| 154 | */ |
| 155 | class ExternalImageFilter final : public ImageFilter { |
| 156 | public: |
| 157 | ~ExternalImageFilter() override; |
| 158 | |
| 159 | static sk_sp<ExternalImageFilter> Make() { |
| 160 | return sk_sp<ExternalImageFilter>(new ExternalImageFilter()); |
| 161 | } |
| 162 | |
| 163 | SG_ATTRIBUTE(ImageFilter, sk_sp<SkImageFilter>, fImageFilter) |
| 164 | |
| 165 | private: |
| 166 | ExternalImageFilter(); |
| 167 | |
| 168 | sk_sp<SkImageFilter> onRevalidateFilter() override { return fImageFilter; } |
| 169 | |
| 170 | sk_sp<SkImageFilter> fImageFilter; |
| 171 | }; |
| 172 | |
| 173 | /** |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 174 | * SkDropShadowImageFilter node. |
| 175 | */ |
| 176 | class DropShadowImageFilter final : public ImageFilter { |
| 177 | public: |
| 178 | ~DropShadowImageFilter() override; |
| 179 | |
| 180 | static sk_sp<DropShadowImageFilter> Make(sk_sp<ImageFilter> input = nullptr); |
| 181 | |
| 182 | enum class Mode { kShadowAndForeground, kShadowOnly }; |
| 183 | |
| 184 | SG_ATTRIBUTE(Offset, SkVector, fOffset) |
| 185 | SG_ATTRIBUTE(Sigma , SkVector, fSigma ) |
| 186 | SG_ATTRIBUTE(Color , SkColor , fColor ) |
| 187 | SG_ATTRIBUTE(Mode , Mode , fMode ) |
| 188 | |
| 189 | protected: |
| 190 | sk_sp<SkImageFilter> onRevalidateFilter() override; |
| 191 | |
| 192 | private: |
| 193 | explicit DropShadowImageFilter(sk_sp<ImageFilter> input); |
| 194 | |
| 195 | SkVector fOffset = { 0, 0 }, |
| 196 | fSigma = { 0, 0 }; |
| 197 | SkColor fColor = SK_ColorBLACK; |
| 198 | Mode fMode = Mode::kShadowAndForeground; |
| 199 | |
| 200 | using INHERITED = ImageFilter; |
| 201 | }; |
| 202 | |
Florin Malita | bd64f18 | 2019-02-25 09:55:04 -0500 | [diff] [blame] | 203 | /** |
Florin Malita | a720d76 | 2019-03-07 15:11:27 -0500 | [diff] [blame] | 204 | * SkBlurImageFilter node. |
| 205 | */ |
| 206 | class BlurImageFilter final : public ImageFilter { |
| 207 | public: |
| 208 | ~BlurImageFilter() override; |
| 209 | |
| 210 | static sk_sp<BlurImageFilter> Make(sk_sp<ImageFilter> input = nullptr); |
| 211 | |
Michael Ludwig | 297587b | 2019-08-01 16:40:20 -0400 | [diff] [blame] | 212 | SG_ATTRIBUTE(Sigma , SkVector , fSigma ) |
| 213 | SG_ATTRIBUTE(TileMode, SkTileMode, fTileMode) |
Florin Malita | a720d76 | 2019-03-07 15:11:27 -0500 | [diff] [blame] | 214 | |
| 215 | protected: |
| 216 | sk_sp<SkImageFilter> onRevalidateFilter() override; |
| 217 | |
| 218 | private: |
| 219 | explicit BlurImageFilter(sk_sp<ImageFilter> input); |
| 220 | |
Michael Ludwig | 297587b | 2019-08-01 16:40:20 -0400 | [diff] [blame] | 221 | SkVector fSigma = { 0, 0 }; |
| 222 | SkTileMode fTileMode = SkTileMode::kClamp; |
Florin Malita | a720d76 | 2019-03-07 15:11:27 -0500 | [diff] [blame] | 223 | |
| 224 | using INHERITED = ImageFilter; |
| 225 | }; |
| 226 | |
| 227 | /** |
Florin Malita | bd64f18 | 2019-02-25 09:55:04 -0500 | [diff] [blame] | 228 | * Applies a SkBlendMode to descendant render nodes. |
| 229 | */ |
| 230 | class BlendModeEffect final : public EffectNode { |
| 231 | public: |
| 232 | ~BlendModeEffect() override; |
| 233 | |
| 234 | static sk_sp<BlendModeEffect> Make(sk_sp<RenderNode> child, |
| 235 | SkBlendMode = SkBlendMode::kSrcOver); |
| 236 | |
| 237 | SG_ATTRIBUTE(Mode, SkBlendMode, fMode) |
| 238 | |
| 239 | protected: |
| 240 | void onRender(SkCanvas*, const RenderContext*) const override; |
| 241 | const RenderNode* onNodeAt(const SkPoint&) const override; |
| 242 | |
| 243 | private: |
| 244 | BlendModeEffect(sk_sp<RenderNode>, SkBlendMode); |
| 245 | |
| 246 | SkBlendMode fMode; |
| 247 | |
| 248 | using INHERITED = EffectNode; |
| 249 | }; |
| 250 | |
Florin Malita | a524ea2 | 2020-07-20 10:51:07 -0400 | [diff] [blame^] | 251 | class LayerEffect final : public EffectNode { |
| 252 | public: |
| 253 | ~LayerEffect() override; |
| 254 | |
| 255 | static sk_sp<LayerEffect> Make(sk_sp<RenderNode> child, |
| 256 | SkBlendMode mode = SkBlendMode::kSrcOver); |
| 257 | |
| 258 | SG_ATTRIBUTE(Mode, SkBlendMode, fMode) |
| 259 | |
| 260 | private: |
| 261 | LayerEffect(sk_sp<RenderNode> child, SkBlendMode mode); |
| 262 | |
| 263 | void onRender(SkCanvas*, const RenderContext*) const override; |
| 264 | |
| 265 | SkBlendMode fMode; |
| 266 | |
| 267 | using INHERITED = EffectNode; |
| 268 | }; |
| 269 | |
Florin Malita | dafd652 | 2019-02-10 01:49:46 +0000 | [diff] [blame] | 270 | } // namespace sksg |
| 271 | |
| 272 | #endif // SkSGRenderEffect_DEFINED |