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 "include/core/SkRefCnt.h"
9 #include "modules/skottie/src/SkottieJson.h"
10 #include "modules/skottie/src/layers/shapelayer/ShapeLayer.h"
11 #include "modules/sksg/include/SkSGGeometryNode.h"
12 #include "modules/sksg/include/SkSGMerge.h"
13 #include "src/utils/SkJSON.h"
14
15 #include <algorithm>
16 #include <cstddef>
17 #include <utility>
18 #include <vector>
19
20 namespace skottie {
21 namespace internal {
22 class AnimationBuilder;
23
MergeGeometry(std::vector<sk_sp<sksg::GeometryNode>> && geos,sksg::Merge::Mode mode)24 sk_sp<sksg::Merge> ShapeBuilder::MergeGeometry(std::vector<sk_sp<sksg::GeometryNode>>&& geos,
25 sksg::Merge::Mode mode) {
26 std::vector<sksg::Merge::Rec> merge_recs;
27 merge_recs.reserve(geos.size());
28
29 for (auto& geo : geos) {
30 merge_recs.push_back(
31 {std::move(geo), merge_recs.empty() ? sksg::Merge::Mode::kMerge : mode});
32 }
33
34 return sksg::Merge::Make(std::move(merge_recs));
35 }
36
AttachMergeGeometryEffect(const skjson::ObjectValue & jmerge,const AnimationBuilder *,std::vector<sk_sp<sksg::GeometryNode>> && geos)37 std::vector<sk_sp<sksg::GeometryNode>> ShapeBuilder::AttachMergeGeometryEffect(
38 const skjson::ObjectValue& jmerge, const AnimationBuilder*,
39 std::vector<sk_sp<sksg::GeometryNode>>&& geos) {
40 static constexpr sksg::Merge::Mode gModes[] = {
41 sksg::Merge::Mode::kMerge, // "mm": 1
42 sksg::Merge::Mode::kUnion, // "mm": 2
43 sksg::Merge::Mode::kDifference, // "mm": 3
44 sksg::Merge::Mode::kIntersect, // "mm": 4
45 sksg::Merge::Mode::kXOR , // "mm": 5
46 };
47
48 const auto mode = gModes[std::min<size_t>(ParseDefault<size_t>(jmerge["mm"], 1) - 1,
49 std::size(gModes) - 1)];
50
51 std::vector<sk_sp<sksg::GeometryNode>> merged;
52 merged.push_back(ShapeBuilder::MergeGeometry(std::move(geos), mode));
53
54 return merged;
55 }
56
57 } // namespace internal
58 } // namespace skottie
59