30bcf69df9
Implement path parsing from string to skia path in native. The parsing contains two main stages: 1) Parse string into a list of nodes that contains one operation (such as move) and a vector of floats as params for that operation. 2) Interpret the operations defined in the nodes into SkPath operations, and create a skia path Also provided unit test for parsing a string path into a list of nodes, and then to a skia path. Change-Id: I0ce13df5e3bb90987dcdc80fe8b039af175ad2e2
59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWUI_VPATH_H
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#define ANDROID_HWUI_VPATH_H
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#include "SkPath.h"
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#include <vector>
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namespace android {
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namespace uirenderer {
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struct PathData {
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// TODO: Try using FatVector instead of std::vector and do a micro benchmark on the performance
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// difference.
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std::vector<char> verbs;
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std::vector<size_t> verbSizes;
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std::vector<float> points;
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bool operator== (const PathData& data) const {
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return verbs == data.verbs && verbSizes == data.verbSizes && points == data.points;
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}
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};
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class VectorDrawablePath {
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public:
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VectorDrawablePath(const PathData& nodes);
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VectorDrawablePath(const VectorDrawablePath& path);
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VectorDrawablePath(const char* path, size_t strLength);
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bool canMorph(const PathData& path);
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bool canMorph(const VectorDrawablePath& path);
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static void verbsToPath(SkPath* outPath, const PathData* data);
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static void interpolatePaths(PathData* outPathData, const PathData* from, const PathData* to,
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float fraction);
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private:
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PathData mData;
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SkPath mSkPath;
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};
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} // namespace uirenderer
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} // namespace android
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#endif // ANDROID_HWUI_VPATH_H
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