1 /*
2 * Copyright 2024 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/svg/include/SkSVGFeMerge.h"
9
10 #include "include/core/SkImageFilter.h"
11 #include "include/effects/SkImageFilters.h"
12 #include "include/private/base/SkTArray.h"
13 #include "modules/svg/include/SkSVGFilterContext.h"
14 #include "modules/svg/include/SkSVGNode.h"
15
parseAndSetAttribute(const char * name,const char * value)16 bool SkSVGFeMergeNode::parseAndSetAttribute(const char* name, const char* value) {
17 return INHERITED::parseAndSetAttribute(name, value) ||
18 this->setIn(SkSVGAttributeParser::parse<SkSVGFeInputType>("in", name, value));
19 }
20
onMakeImageFilter(const SkSVGRenderContext & ctx,const SkSVGFilterContext & fctx) const21 sk_sp<SkImageFilter> SkSVGFeMerge::onMakeImageFilter(const SkSVGRenderContext& ctx,
22 const SkSVGFilterContext& fctx) const {
23 const SkSVGColorspace colorspace = this->resolveColorspace(ctx, fctx);
24
25 skia_private::STArray<8, sk_sp<SkImageFilter>> merge_node_filters;
26 merge_node_filters.reserve(fChildren.size());
27
28 this->forEachChild<SkSVGFeMergeNode>([&](const SkSVGFeMergeNode* child) {
29 merge_node_filters.push_back(fctx.resolveInput(ctx, child->getIn(), colorspace));
30 });
31
32 return SkImageFilters::Merge(merge_node_filters.data(),
33 merge_node_filters.size(),
34 this->resolveFilterSubregion(ctx, fctx));
35 }
36
getInputs() const37 std::vector<SkSVGFeInputType> SkSVGFeMerge::getInputs() const {
38 std::vector<SkSVGFeInputType> inputs;
39 inputs.reserve(fChildren.size());
40
41 this->forEachChild<SkSVGFeMergeNode>([&](const SkSVGFeMergeNode* child) {
42 inputs.push_back(child->getIn());
43 });
44
45 return inputs;
46 }
47