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
14namespace skottie {
15namespace internal {
16
17sk_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
30std::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