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1 /*
2  * Copyright 2020 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 "modules/skottie/src/Adapter.h"
9 #include "modules/skottie/src/SkottieJson.h"
10 #include "modules/skottie/src/SkottiePriv.h"
11 #include "modules/skottie/src/SkottieValue.h"
12 #include "modules/skottie/src/layers/shapelayer/ShapeLayer.h"
13 
14 namespace skottie {
15 namespace internal {
16 
MergeGeometry(std::vector<sk_sp<sksg::GeometryNode>> && geos,sksg::Merge::Mode mode)17 sk_sp<sksg::Merge> ShapeBuilder::MergeGeometry(std::vector<sk_sp<sksg::GeometryNode>>&& geos,
18                                                sksg::Merge::Mode mode) {
19     std::vector<sksg::Merge::Rec> merge_recs;
20     merge_recs.reserve(geos.size());
21 
22     for (auto& geo : geos) {
23         merge_recs.push_back(
24             {std::move(geo), merge_recs.empty() ? sksg::Merge::Mode::kMerge : mode});
25     }
26 
27     return sksg::Merge::Make(std::move(merge_recs));
28 }
29 
AttachMergeGeometryEffect(const skjson::ObjectValue & jmerge,const AnimationBuilder *,std::vector<sk_sp<sksg::GeometryNode>> && geos)30 std::vector<sk_sp<sksg::GeometryNode>> ShapeBuilder::AttachMergeGeometryEffect(
31         const skjson::ObjectValue& jmerge, const AnimationBuilder*,
32         std::vector<sk_sp<sksg::GeometryNode>>&& geos) {
33     static constexpr sksg::Merge::Mode gModes[] = {
34         sksg::Merge::Mode::kMerge,      // "mm": 1
35         sksg::Merge::Mode::kUnion,      // "mm": 2
36         sksg::Merge::Mode::kDifference, // "mm": 3
37         sksg::Merge::Mode::kIntersect,  // "mm": 4
38         sksg::Merge::Mode::kXOR      ,  // "mm": 5
39     };
40 
41     const auto mode = gModes[std::min<size_t>(ParseDefault<size_t>(jmerge["mm"], 1) - 1,
42                                             SK_ARRAY_COUNT(gModes) - 1)];
43 
44     std::vector<sk_sp<sksg::GeometryNode>> merged;
45     merged.push_back(ShapeBuilder::MergeGeometry(std::move(geos), mode));
46 
47     return merged;
48 }
49 
50 } // namespace internal
51 } // namespace skottie
52