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/SkSVGAttributeParser.h"
14 #include "modules/svg/include/SkSVGFilterContext.h"
15
16 class SkSVGRenderContext;
17
parseAndSetAttribute(const char * name,const char * value)18 bool SkSVGFeMergeNode::parseAndSetAttribute(const char* name, const char* value) {
19 return INHERITED::parseAndSetAttribute(name, value) ||
20 this->setIn(SkSVGAttributeParser::parse<SkSVGFeInputType>("in", name, value));
21 }
22
onMakeImageFilter(const SkSVGRenderContext & ctx,const SkSVGFilterContext & fctx) const23 sk_sp<SkImageFilter> SkSVGFeMerge::onMakeImageFilter(const SkSVGRenderContext& ctx,
24 const SkSVGFilterContext& fctx) const {
25 const SkSVGColorspace colorspace = this->resolveColorspace(ctx, fctx);
26
27 skia_private::STArray<8, sk_sp<SkImageFilter>> merge_node_filters;
28 merge_node_filters.reserve(fChildren.size());
29
30 this->forEachChild<SkSVGFeMergeNode>([&](const SkSVGFeMergeNode* child) {
31 merge_node_filters.push_back(fctx.resolveInput(ctx, child->getIn(), colorspace));
32 });
33
34 return SkImageFilters::Merge(merge_node_filters.data(),
35 merge_node_filters.size(),
36 this->resolveFilterSubregion(ctx, fctx));
37 }
38
getInputs() const39 std::vector<SkSVGFeInputType> SkSVGFeMerge::getInputs() const {
40 std::vector<SkSVGFeInputType> inputs;
41 inputs.reserve(fChildren.size());
42
43 this->forEachChild<SkSVGFeMergeNode>([&](const SkSVGFeMergeNode* child) {
44 inputs.push_back(child->getIn());
45 });
46
47 return inputs;
48 }
49