Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 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 | #include "SkottiePriv.h" |
| 9 | |
| 10 | #include "SkJSON.h" |
| 11 | #include "SkottieAdapter.h" |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 12 | #include "SkottieJson.h" |
| 13 | #include "SkottieValue.h" |
| 14 | #include "SkPath.h" |
| 15 | #include "SkSGColor.h" |
| 16 | #include "SkSGDraw.h" |
| 17 | #include "SkSGGeometryTransform.h" |
| 18 | #include "SkSGGradient.h" |
| 19 | #include "SkSGGroup.h" |
| 20 | #include "SkSGMerge.h" |
| 21 | #include "SkSGPath.h" |
| 22 | #include "SkSGRect.h" |
| 23 | #include "SkSGRoundEffect.h" |
| 24 | #include "SkSGTransform.h" |
| 25 | #include "SkSGTrimEffect.h" |
| 26 | |
| 27 | namespace skottie { |
| 28 | namespace internal { |
| 29 | |
| 30 | namespace { |
| 31 | |
| 32 | sk_sp<sksg::GeometryNode> AttachPathGeometry(const skjson::ObjectValue& jpath, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 33 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 34 | AnimatorScope* ascope) { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 35 | return abuilder->attachPath(jpath["ks"], ascope); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 36 | } |
| 37 | |
| 38 | sk_sp<sksg::GeometryNode> AttachRRectGeometry(const skjson::ObjectValue& jrect, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 39 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 40 | AnimatorScope* ascope) { |
| 41 | auto rect_node = sksg::RRect::Make(); |
| 42 | auto adapter = sk_make_sp<RRectAdapter>(rect_node); |
| 43 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 44 | auto p_attached = abuilder->bindProperty<VectorValue>(jrect["p"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 45 | [adapter](const VectorValue& p) { |
| 46 | adapter->setPosition(ValueTraits<VectorValue>::As<SkPoint>(p)); |
| 47 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 48 | auto s_attached = abuilder->bindProperty<VectorValue>(jrect["s"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 49 | [adapter](const VectorValue& s) { |
| 50 | adapter->setSize(ValueTraits<VectorValue>::As<SkSize>(s)); |
| 51 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 52 | auto r_attached = abuilder->bindProperty<ScalarValue>(jrect["r"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 53 | [adapter](const ScalarValue& r) { |
| 54 | adapter->setRadius(SkSize::Make(r, r)); |
| 55 | }); |
| 56 | |
| 57 | if (!p_attached && !s_attached && !r_attached) { |
| 58 | return nullptr; |
| 59 | } |
| 60 | |
| 61 | return std::move(rect_node); |
| 62 | } |
| 63 | |
| 64 | sk_sp<sksg::GeometryNode> AttachEllipseGeometry(const skjson::ObjectValue& jellipse, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 65 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 66 | AnimatorScope* ascope) { |
| 67 | auto rect_node = sksg::RRect::Make(); |
| 68 | auto adapter = sk_make_sp<RRectAdapter>(rect_node); |
| 69 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 70 | auto p_attached = abuilder->bindProperty<VectorValue>(jellipse["p"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 71 | [adapter](const VectorValue& p) { |
| 72 | adapter->setPosition(ValueTraits<VectorValue>::As<SkPoint>(p)); |
| 73 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 74 | auto s_attached = abuilder->bindProperty<VectorValue>(jellipse["s"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 75 | [adapter](const VectorValue& s) { |
| 76 | const auto sz = ValueTraits<VectorValue>::As<SkSize>(s); |
| 77 | adapter->setSize(sz); |
| 78 | adapter->setRadius(SkSize::Make(sz.width() / 2, sz.height() / 2)); |
| 79 | }); |
| 80 | |
| 81 | if (!p_attached && !s_attached) { |
| 82 | return nullptr; |
| 83 | } |
| 84 | |
| 85 | return std::move(rect_node); |
| 86 | } |
| 87 | |
| 88 | sk_sp<sksg::GeometryNode> AttachPolystarGeometry(const skjson::ObjectValue& jstar, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 89 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 90 | AnimatorScope* ascope) { |
| 91 | static constexpr PolyStarAdapter::Type gTypes[] = { |
| 92 | PolyStarAdapter::Type::kStar, // "sy": 1 |
| 93 | PolyStarAdapter::Type::kPoly, // "sy": 2 |
| 94 | }; |
| 95 | |
| 96 | const auto type = ParseDefault<size_t>(jstar["sy"], 0) - 1; |
| 97 | if (type >= SK_ARRAY_COUNT(gTypes)) { |
| 98 | LogJSON(jstar, "!! Unknown polystar type"); |
| 99 | return nullptr; |
| 100 | } |
| 101 | |
| 102 | auto path_node = sksg::Path::Make(); |
| 103 | auto adapter = sk_make_sp<PolyStarAdapter>(path_node, gTypes[type]); |
| 104 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 105 | abuilder->bindProperty<VectorValue>(jstar["p"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 106 | [adapter](const VectorValue& p) { |
| 107 | adapter->setPosition(ValueTraits<VectorValue>::As<SkPoint>(p)); |
| 108 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 109 | abuilder->bindProperty<ScalarValue>(jstar["pt"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 110 | [adapter](const ScalarValue& pt) { |
| 111 | adapter->setPointCount(pt); |
| 112 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 113 | abuilder->bindProperty<ScalarValue>(jstar["ir"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 114 | [adapter](const ScalarValue& ir) { |
| 115 | adapter->setInnerRadius(ir); |
| 116 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 117 | abuilder->bindProperty<ScalarValue>(jstar["or"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 118 | [adapter](const ScalarValue& otr) { |
| 119 | adapter->setOuterRadius(otr); |
| 120 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 121 | abuilder->bindProperty<ScalarValue>(jstar["is"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 122 | [adapter](const ScalarValue& is) { |
| 123 | adapter->setInnerRoundness(is); |
| 124 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 125 | abuilder->bindProperty<ScalarValue>(jstar["os"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 126 | [adapter](const ScalarValue& os) { |
| 127 | adapter->setOuterRoundness(os); |
| 128 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 129 | abuilder->bindProperty<ScalarValue>(jstar["r"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 130 | [adapter](const ScalarValue& r) { |
| 131 | adapter->setRotation(r); |
| 132 | }); |
| 133 | |
| 134 | return std::move(path_node); |
| 135 | } |
| 136 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 137 | sk_sp<sksg::Gradient> AttachGradient(const skjson::ObjectValue& jgrad, |
| 138 | const AnimationBuilder* abuilder, AnimatorScope* ascope) { |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 139 | const skjson::ObjectValue* stops = jgrad["g"]; |
| 140 | if (!stops) |
| 141 | return nullptr; |
| 142 | |
| 143 | const auto stopCount = ParseDefault<int>((*stops)["p"], -1); |
| 144 | if (stopCount < 0) |
| 145 | return nullptr; |
| 146 | |
| 147 | sk_sp<sksg::Gradient> gradient_node; |
| 148 | sk_sp<GradientAdapter> adapter; |
| 149 | |
| 150 | if (ParseDefault<int>(jgrad["t"], 1) == 1) { |
| 151 | auto linear_node = sksg::LinearGradient::Make(); |
| 152 | adapter = sk_make_sp<LinearGradientAdapter>(linear_node, stopCount); |
| 153 | gradient_node = std::move(linear_node); |
| 154 | } else { |
| 155 | auto radial_node = sksg::RadialGradient::Make(); |
| 156 | adapter = sk_make_sp<RadialGradientAdapter>(radial_node, stopCount); |
| 157 | |
| 158 | // TODO: highlight, angle |
| 159 | gradient_node = std::move(radial_node); |
| 160 | } |
| 161 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 162 | abuilder->bindProperty<VectorValue>((*stops)["k"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 163 | [adapter](const VectorValue& stops) { |
| 164 | adapter->setColorStops(stops); |
| 165 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 166 | abuilder->bindProperty<VectorValue>(jgrad["s"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 167 | [adapter](const VectorValue& s) { |
| 168 | adapter->setStartPoint(ValueTraits<VectorValue>::As<SkPoint>(s)); |
| 169 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 170 | abuilder->bindProperty<VectorValue>(jgrad["e"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 171 | [adapter](const VectorValue& e) { |
| 172 | adapter->setEndPoint(ValueTraits<VectorValue>::As<SkPoint>(e)); |
| 173 | }); |
| 174 | |
| 175 | return gradient_node; |
| 176 | } |
| 177 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 178 | sk_sp<sksg::PaintNode> AttachPaint(const skjson::ObjectValue& jpaint, |
| 179 | const AnimationBuilder* abuilder, AnimatorScope* ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 180 | sk_sp<sksg::PaintNode> paint_node) { |
| 181 | if (paint_node) { |
| 182 | paint_node->setAntiAlias(true); |
| 183 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 184 | abuilder->bindProperty<ScalarValue>(jpaint["o"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 185 | [paint_node](const ScalarValue& o) { |
| 186 | // BM opacity is [0..100] |
| 187 | paint_node->setOpacity(o * 0.01f); |
| 188 | }); |
| 189 | } |
| 190 | |
| 191 | return paint_node; |
| 192 | } |
| 193 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 194 | sk_sp<sksg::PaintNode> AttachStroke(const skjson::ObjectValue& jstroke, |
| 195 | const AnimationBuilder* abuilder, AnimatorScope* ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 196 | sk_sp<sksg::PaintNode> stroke_node) { |
| 197 | if (!stroke_node) |
| 198 | return nullptr; |
| 199 | |
| 200 | stroke_node->setStyle(SkPaint::kStroke_Style); |
| 201 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 202 | abuilder->bindProperty<ScalarValue>(jstroke["w"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 203 | [stroke_node](const ScalarValue& w) { |
| 204 | stroke_node->setStrokeWidth(w); |
| 205 | }); |
| 206 | |
| 207 | stroke_node->setStrokeMiter(ParseDefault<SkScalar>(jstroke["ml"], 4.0f)); |
| 208 | |
| 209 | static constexpr SkPaint::Join gJoins[] = { |
| 210 | SkPaint::kMiter_Join, |
| 211 | SkPaint::kRound_Join, |
| 212 | SkPaint::kBevel_Join, |
| 213 | }; |
| 214 | stroke_node->setStrokeJoin(gJoins[SkTMin<size_t>(ParseDefault<size_t>(jstroke["lj"], 1) - 1, |
| 215 | SK_ARRAY_COUNT(gJoins) - 1)]); |
| 216 | |
| 217 | static constexpr SkPaint::Cap gCaps[] = { |
| 218 | SkPaint::kButt_Cap, |
| 219 | SkPaint::kRound_Cap, |
| 220 | SkPaint::kSquare_Cap, |
| 221 | }; |
| 222 | stroke_node->setStrokeCap(gCaps[SkTMin<size_t>(ParseDefault<size_t>(jstroke["lc"], 1) - 1, |
| 223 | SK_ARRAY_COUNT(gCaps) - 1)]); |
| 224 | |
| 225 | return stroke_node; |
| 226 | } |
| 227 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 228 | sk_sp<sksg::PaintNode> AttachColorFill(const skjson::ObjectValue& jfill, |
| 229 | const AnimationBuilder* abuilder, AnimatorScope* ascope) { |
| 230 | return AttachPaint(jfill, abuilder, ascope, abuilder->attachColor(jfill, ascope, "c")); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 231 | } |
| 232 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 233 | sk_sp<sksg::PaintNode> AttachGradientFill(const skjson::ObjectValue& jfill, |
| 234 | const AnimationBuilder* abuilder, AnimatorScope* ascope) { |
| 235 | return AttachPaint(jfill, abuilder, ascope, AttachGradient(jfill, abuilder, ascope)); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 236 | } |
| 237 | |
| 238 | sk_sp<sksg::PaintNode> AttachColorStroke(const skjson::ObjectValue& jstroke, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 239 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 240 | AnimatorScope* ascope) { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 241 | return AttachStroke(jstroke, abuilder, ascope, |
| 242 | AttachPaint(jstroke, abuilder, ascope, |
| 243 | abuilder->attachColor(jstroke, ascope, "c"))); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | sk_sp<sksg::PaintNode> AttachGradientStroke(const skjson::ObjectValue& jstroke, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 247 | const AnimationBuilder* abuilder, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 248 | AnimatorScope* ascope) { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 249 | return AttachStroke(jstroke, abuilder, ascope, |
| 250 | AttachPaint(jstroke, abuilder, ascope, |
| 251 | AttachGradient(jstroke, abuilder, ascope))); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 252 | } |
| 253 | |
| 254 | sk_sp<sksg::Merge> Merge(std::vector<sk_sp<sksg::GeometryNode>>&& geos, sksg::Merge::Mode mode) { |
| 255 | std::vector<sksg::Merge::Rec> merge_recs; |
| 256 | merge_recs.reserve(geos.size()); |
| 257 | |
| 258 | for (const auto& geo : geos) { |
| 259 | merge_recs.push_back( |
| 260 | {std::move(geo), merge_recs.empty() ? sksg::Merge::Mode::kMerge : mode}); |
| 261 | } |
| 262 | |
| 263 | return sksg::Merge::Make(std::move(merge_recs)); |
| 264 | } |
| 265 | |
| 266 | std::vector<sk_sp<sksg::GeometryNode>> AttachMergeGeometryEffect( |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 267 | const skjson::ObjectValue& jmerge, const AnimationBuilder*, AnimatorScope*, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 268 | std::vector<sk_sp<sksg::GeometryNode>>&& geos) { |
| 269 | static constexpr sksg::Merge::Mode gModes[] = { |
| 270 | sksg::Merge::Mode::kMerge, // "mm": 1 |
| 271 | sksg::Merge::Mode::kUnion, // "mm": 2 |
| 272 | sksg::Merge::Mode::kDifference, // "mm": 3 |
| 273 | sksg::Merge::Mode::kIntersect, // "mm": 4 |
| 274 | sksg::Merge::Mode::kXOR , // "mm": 5 |
| 275 | }; |
| 276 | |
| 277 | const auto mode = gModes[SkTMin<size_t>(ParseDefault<size_t>(jmerge["mm"], 1) - 1, |
| 278 | SK_ARRAY_COUNT(gModes) - 1)]; |
| 279 | |
| 280 | std::vector<sk_sp<sksg::GeometryNode>> merged; |
| 281 | merged.push_back(Merge(std::move(geos), mode)); |
| 282 | |
| 283 | return merged; |
| 284 | } |
| 285 | |
| 286 | std::vector<sk_sp<sksg::GeometryNode>> AttachTrimGeometryEffect( |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 287 | const skjson::ObjectValue& jtrim, const AnimationBuilder* abuilder, AnimatorScope* ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 288 | std::vector<sk_sp<sksg::GeometryNode>>&& geos) { |
| 289 | |
| 290 | enum class Mode { |
| 291 | kMerged, // "m": 1 |
| 292 | kSeparate, // "m": 2 |
| 293 | } gModes[] = { Mode::kMerged, Mode::kSeparate }; |
| 294 | |
| 295 | const auto mode = gModes[SkTMin<size_t>(ParseDefault<size_t>(jtrim["m"], 1) - 1, |
| 296 | SK_ARRAY_COUNT(gModes) - 1)]; |
| 297 | |
| 298 | std::vector<sk_sp<sksg::GeometryNode>> inputs; |
| 299 | if (mode == Mode::kMerged) { |
| 300 | inputs.push_back(Merge(std::move(geos), sksg::Merge::Mode::kMerge)); |
| 301 | } else { |
| 302 | inputs = std::move(geos); |
| 303 | } |
| 304 | |
| 305 | std::vector<sk_sp<sksg::GeometryNode>> trimmed; |
| 306 | trimmed.reserve(inputs.size()); |
| 307 | for (const auto& i : inputs) { |
| 308 | const auto trimEffect = sksg::TrimEffect::Make(i); |
| 309 | trimmed.push_back(trimEffect); |
| 310 | |
| 311 | const auto adapter = sk_make_sp<TrimEffectAdapter>(std::move(trimEffect)); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 312 | abuilder->bindProperty<ScalarValue>(jtrim["s"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 313 | [adapter](const ScalarValue& s) { |
| 314 | adapter->setStart(s); |
| 315 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 316 | abuilder->bindProperty<ScalarValue>(jtrim["e"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 317 | [adapter](const ScalarValue& e) { |
| 318 | adapter->setEnd(e); |
| 319 | }); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 320 | abuilder->bindProperty<ScalarValue>(jtrim["o"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 321 | [adapter](const ScalarValue& o) { |
| 322 | adapter->setOffset(o); |
| 323 | }); |
| 324 | } |
| 325 | |
| 326 | return trimmed; |
| 327 | } |
| 328 | |
| 329 | std::vector<sk_sp<sksg::GeometryNode>> AttachRoundGeometryEffect( |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 330 | const skjson::ObjectValue& jtrim, const AnimationBuilder* abuilder, AnimatorScope* ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 331 | std::vector<sk_sp<sksg::GeometryNode>>&& geos) { |
| 332 | |
| 333 | std::vector<sk_sp<sksg::GeometryNode>> rounded; |
| 334 | rounded.reserve(geos.size()); |
| 335 | |
| 336 | for (const auto& g : geos) { |
| 337 | const auto roundEffect = sksg::RoundEffect::Make(std::move(g)); |
| 338 | rounded.push_back(roundEffect); |
| 339 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 340 | abuilder->bindProperty<ScalarValue>(jtrim["r"], ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 341 | [roundEffect](const ScalarValue& r) { |
| 342 | roundEffect->setRadius(r); |
| 343 | }); |
| 344 | } |
| 345 | |
| 346 | return rounded; |
| 347 | } |
| 348 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 349 | using GeometryAttacherT = sk_sp<sksg::GeometryNode> (*)(const skjson::ObjectValue&, |
| 350 | const AnimationBuilder*, AnimatorScope*); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 351 | static constexpr GeometryAttacherT gGeometryAttachers[] = { |
| 352 | AttachPathGeometry, |
| 353 | AttachRRectGeometry, |
| 354 | AttachEllipseGeometry, |
| 355 | AttachPolystarGeometry, |
| 356 | }; |
| 357 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 358 | using PaintAttacherT = sk_sp<sksg::PaintNode> (*)(const skjson::ObjectValue&, |
| 359 | const AnimationBuilder*, AnimatorScope*); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 360 | static constexpr PaintAttacherT gPaintAttachers[] = { |
| 361 | AttachColorFill, |
| 362 | AttachColorStroke, |
| 363 | AttachGradientFill, |
| 364 | AttachGradientStroke, |
| 365 | }; |
| 366 | |
| 367 | using GeometryEffectAttacherT = |
| 368 | std::vector<sk_sp<sksg::GeometryNode>> (*)(const skjson::ObjectValue&, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 369 | const AnimationBuilder*, AnimatorScope*, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 370 | std::vector<sk_sp<sksg::GeometryNode>>&&); |
| 371 | static constexpr GeometryEffectAttacherT gGeometryEffectAttachers[] = { |
| 372 | AttachMergeGeometryEffect, |
| 373 | AttachTrimGeometryEffect, |
| 374 | AttachRoundGeometryEffect, |
| 375 | }; |
| 376 | |
| 377 | enum class ShapeType { |
| 378 | kGeometry, |
| 379 | kGeometryEffect, |
| 380 | kPaint, |
| 381 | kGroup, |
| 382 | kTransform, |
| 383 | }; |
| 384 | |
| 385 | struct ShapeInfo { |
| 386 | const char* fTypeString; |
| 387 | ShapeType fShapeType; |
| 388 | uint32_t fAttacherIndex; // index into respective attacher tables |
| 389 | }; |
| 390 | |
| 391 | const ShapeInfo* FindShapeInfo(const skjson::ObjectValue& jshape) { |
| 392 | static constexpr ShapeInfo gShapeInfo[] = { |
| 393 | { "el", ShapeType::kGeometry , 2 }, // ellipse -> AttachEllipseGeometry |
| 394 | { "fl", ShapeType::kPaint , 0 }, // fill -> AttachColorFill |
| 395 | { "gf", ShapeType::kPaint , 2 }, // gfill -> AttachGradientFill |
| 396 | { "gr", ShapeType::kGroup , 0 }, // group -> Inline handler |
| 397 | { "gs", ShapeType::kPaint , 3 }, // gstroke -> AttachGradientStroke |
| 398 | { "mm", ShapeType::kGeometryEffect, 0 }, // merge -> AttachMergeGeometryEffect |
| 399 | { "rc", ShapeType::kGeometry , 1 }, // rrect -> AttachRRectGeometry |
| 400 | { "rd", ShapeType::kGeometryEffect, 2 }, // round -> AttachRoundGeometryEffect |
| 401 | { "sh", ShapeType::kGeometry , 0 }, // shape -> AttachPathGeometry |
| 402 | { "sr", ShapeType::kGeometry , 3 }, // polystar -> AttachPolyStarGeometry |
| 403 | { "st", ShapeType::kPaint , 1 }, // stroke -> AttachColorStroke |
| 404 | { "tm", ShapeType::kGeometryEffect, 1 }, // trim -> AttachTrimGeometryEffect |
| 405 | { "tr", ShapeType::kTransform , 0 }, // transform -> Inline handler |
| 406 | }; |
| 407 | |
| 408 | const skjson::StringValue* type = jshape["ty"]; |
| 409 | if (!type) { |
| 410 | return nullptr; |
| 411 | } |
| 412 | |
| 413 | const auto* info = bsearch(type->begin(), |
| 414 | gShapeInfo, |
| 415 | SK_ARRAY_COUNT(gShapeInfo), |
| 416 | sizeof(ShapeInfo), |
| 417 | [](const void* key, const void* info) { |
| 418 | return strcmp(static_cast<const char*>(key), |
| 419 | static_cast<const ShapeInfo*>(info)->fTypeString); |
| 420 | }); |
| 421 | |
| 422 | return static_cast<const ShapeInfo*>(info); |
| 423 | } |
| 424 | |
| 425 | struct GeometryEffectRec { |
| 426 | const skjson::ObjectValue& fJson; |
| 427 | GeometryEffectAttacherT fAttach; |
| 428 | }; |
| 429 | |
| 430 | struct AttachShapeContext { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 431 | AttachShapeContext(const AnimationBuilder* abuilder, |
| 432 | AnimatorScope* ascope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 433 | std::vector<sk_sp<sksg::GeometryNode>>* geos, |
| 434 | std::vector<GeometryEffectRec>* effects, |
| 435 | size_t committedAnimators) |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 436 | : fBuilder(abuilder) |
| 437 | , fScope(ascope) |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 438 | , fGeometryStack(geos) |
| 439 | , fGeometryEffectStack(effects) |
| 440 | , fCommittedAnimators(committedAnimators) {} |
| 441 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 442 | const AnimationBuilder* fBuilder; |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 443 | AnimatorScope* fScope; |
| 444 | std::vector<sk_sp<sksg::GeometryNode>>* fGeometryStack; |
| 445 | std::vector<GeometryEffectRec>* fGeometryEffectStack; |
| 446 | size_t fCommittedAnimators; |
| 447 | }; |
| 448 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 449 | sk_sp<sksg::RenderNode> AttachShape(const skjson::ArrayValue* jshape, AttachShapeContext* ctx) { |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 450 | if (!jshape) |
| 451 | return nullptr; |
| 452 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 453 | SkDEBUGCODE(const auto initialGeometryEffects = ctx->fGeometryEffectStack->size();) |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 454 | |
| 455 | sk_sp<sksg::Group> shape_group = sksg::Group::Make(); |
| 456 | sk_sp<sksg::RenderNode> shape_wrapper = shape_group; |
| 457 | sk_sp<sksg::Matrix> shape_matrix; |
| 458 | |
| 459 | struct ShapeRec { |
| 460 | const skjson::ObjectValue& fJson; |
| 461 | const ShapeInfo& fInfo; |
| 462 | }; |
| 463 | |
| 464 | // First pass (bottom->top): |
| 465 | // |
| 466 | // * pick up the group transform and opacity |
| 467 | // * push local geometry effects onto the stack |
| 468 | // * store recs for next pass |
| 469 | // |
| 470 | std::vector<ShapeRec> recs; |
| 471 | for (size_t i = 0; i < jshape->size(); ++i) { |
| 472 | const skjson::ObjectValue* shape = (*jshape)[jshape->size() - 1 - i]; |
| 473 | if (!shape) continue; |
| 474 | |
| 475 | const auto* info = FindShapeInfo(*shape); |
| 476 | if (!info) { |
| 477 | LogJSON((*shape)["ty"], "!! Unknown shape"); |
| 478 | continue; |
| 479 | } |
| 480 | |
| 481 | recs.push_back({ *shape, *info }); |
| 482 | |
| 483 | switch (info->fShapeType) { |
| 484 | case ShapeType::kTransform: |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 485 | if ((shape_matrix = ctx->fBuilder->attachMatrix(*shape, ctx->fScope, nullptr))) { |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 486 | shape_wrapper = sksg::Transform::Make(std::move(shape_wrapper), shape_matrix); |
| 487 | } |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 488 | shape_wrapper = ctx->fBuilder->attachOpacity(*shape, ctx->fScope, |
| 489 | std::move(shape_wrapper)); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 490 | break; |
| 491 | case ShapeType::kGeometryEffect: |
| 492 | SkASSERT(info->fAttacherIndex < SK_ARRAY_COUNT(gGeometryEffectAttachers)); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 493 | ctx->fGeometryEffectStack->push_back( |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 494 | { *shape, gGeometryEffectAttachers[info->fAttacherIndex] }); |
| 495 | break; |
| 496 | default: |
| 497 | break; |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | // Second pass (top -> bottom, after 2x reverse): |
| 502 | // |
| 503 | // * track local geometry |
| 504 | // * emit local paints |
| 505 | // |
| 506 | std::vector<sk_sp<sksg::GeometryNode>> geos; |
| 507 | std::vector<sk_sp<sksg::RenderNode >> draws; |
| 508 | for (auto rec = recs.rbegin(); rec != recs.rend(); ++rec) { |
| 509 | switch (rec->fInfo.fShapeType) { |
| 510 | case ShapeType::kGeometry: { |
| 511 | SkASSERT(rec->fInfo.fAttacherIndex < SK_ARRAY_COUNT(gGeometryAttachers)); |
| 512 | if (auto geo = gGeometryAttachers[rec->fInfo.fAttacherIndex](rec->fJson, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 513 | ctx->fBuilder, |
| 514 | ctx->fScope)) { |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 515 | geos.push_back(std::move(geo)); |
| 516 | } |
| 517 | } break; |
| 518 | case ShapeType::kGeometryEffect: { |
| 519 | // Apply the current effect and pop from the stack. |
| 520 | SkASSERT(rec->fInfo.fAttacherIndex < SK_ARRAY_COUNT(gGeometryEffectAttachers)); |
| 521 | if (!geos.empty()) { |
| 522 | geos = gGeometryEffectAttachers[rec->fInfo.fAttacherIndex](rec->fJson, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 523 | ctx->fBuilder, |
| 524 | ctx->fScope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 525 | std::move(geos)); |
| 526 | } |
| 527 | |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 528 | SkASSERT(&ctx->fGeometryEffectStack->back().fJson == &rec->fJson); |
| 529 | SkASSERT(ctx->fGeometryEffectStack->back().fAttach == |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 530 | gGeometryEffectAttachers[rec->fInfo.fAttacherIndex]); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 531 | ctx->fGeometryEffectStack->pop_back(); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 532 | } break; |
| 533 | case ShapeType::kGroup: { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 534 | AttachShapeContext groupShapeCtx(ctx->fBuilder, |
| 535 | ctx->fScope, |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 536 | &geos, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 537 | ctx->fGeometryEffectStack, |
| 538 | ctx->fCommittedAnimators); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 539 | if (auto subgroup = AttachShape(rec->fJson["it"], &groupShapeCtx)) { |
| 540 | draws.push_back(std::move(subgroup)); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 541 | SkASSERT(groupShapeCtx.fCommittedAnimators >= ctx->fCommittedAnimators); |
| 542 | ctx->fCommittedAnimators = groupShapeCtx.fCommittedAnimators; |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 543 | } |
| 544 | } break; |
| 545 | case ShapeType::kPaint: { |
| 546 | SkASSERT(rec->fInfo.fAttacherIndex < SK_ARRAY_COUNT(gPaintAttachers)); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 547 | auto paint = gPaintAttachers[rec->fInfo.fAttacherIndex](rec->fJson, |
| 548 | ctx->fBuilder, |
| 549 | ctx->fScope); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 550 | if (!paint || geos.empty()) |
| 551 | break; |
| 552 | |
| 553 | auto drawGeos = geos; |
| 554 | |
| 555 | // Apply all pending effects from the stack. |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 556 | for (auto it = ctx->fGeometryEffectStack->rbegin(); |
| 557 | it != ctx->fGeometryEffectStack->rend(); ++it) { |
| 558 | drawGeos = it->fAttach(it->fJson, ctx->fBuilder, ctx->fScope, std::move(drawGeos)); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 559 | } |
| 560 | |
| 561 | // If we still have multiple geos, reduce using 'merge'. |
| 562 | auto geo = drawGeos.size() > 1 |
| 563 | ? Merge(std::move(drawGeos), sksg::Merge::Mode::kMerge) |
| 564 | : drawGeos[0]; |
| 565 | |
| 566 | SkASSERT(geo); |
| 567 | draws.push_back(sksg::Draw::Make(std::move(geo), std::move(paint))); |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 568 | ctx->fCommittedAnimators = ctx->fScope->size(); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 569 | } break; |
| 570 | default: |
| 571 | break; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | // By now we should have popped all local geometry effects. |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 576 | SkASSERT(ctx->fGeometryEffectStack->size() == initialGeometryEffects); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 577 | |
| 578 | // Push transformed local geometries to parent list, for subsequent paints. |
| 579 | for (const auto& geo : geos) { |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 580 | ctx->fGeometryStack->push_back(shape_matrix |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 581 | ? sksg::GeometryTransform::Make(std::move(geo), shape_matrix) |
| 582 | : std::move(geo)); |
| 583 | } |
| 584 | |
| 585 | // Emit local draws reversed (bottom->top, per spec). |
| 586 | for (auto it = draws.rbegin(); it != draws.rend(); ++it) { |
| 587 | shape_group->addChild(std::move(*it)); |
| 588 | } |
Florin Malita | ca858b6 | 2018-09-02 13:44:13 -0400 | [diff] [blame^] | 589 | shape_group->shrink_to_fit(); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 590 | |
| 591 | return draws.empty() ? nullptr : shape_wrapper; |
| 592 | } |
| 593 | |
| 594 | } // namespace |
| 595 | |
| 596 | sk_sp<sksg::RenderNode> AnimationBuilder::attachShapeLayer(const skjson::ObjectValue& layer, |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 597 | AnimatorScope* ascope) const { |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 598 | std::vector<sk_sp<sksg::GeometryNode>> geometryStack; |
| 599 | std::vector<GeometryEffectRec> geometryEffectStack; |
Florin Malita | 471a946 | 2018-08-25 20:22:34 -0400 | [diff] [blame] | 600 | AttachShapeContext shapeCtx(this, ascope, &geometryStack, &geometryEffectStack, ascope->size()); |
Florin Malita | 1b1dead | 2018-08-21 14:34:02 -0400 | [diff] [blame] | 601 | auto shapeNode = AttachShape(layer["shapes"], &shapeCtx); |
| 602 | |
| 603 | // Trim uncommitted animators: AttachShape consumes effects on the fly, and greedily attaches |
| 604 | // geometries => at the end, we can end up with unused geometries, which are nevertheless alive |
| 605 | // due to attached animators. To avoid this, we track committed animators and discard the |
| 606 | // orphans here. |
| 607 | SkASSERT(shapeCtx.fCommittedAnimators <= ascope->size()); |
| 608 | ascope->resize(shapeCtx.fCommittedAnimators); |
| 609 | |
| 610 | return shapeNode; |
| 611 | } |
| 612 | |
| 613 | } // namespace internal |
| 614 | } // namespace skottie |