1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef SCALE_FILTER_H
17 #define SCALE_FILTER_H
18 
19 #include <cmath>
20 #include "algo_filter.h"
21 
22 namespace OHOS {
23 namespace Rosen {
24 class ScaleFilter : public AlgoFilter {
25 public:
26     static constexpr float DEFAULT_SACLE = 1.0f;
27     ScaleFilter();
~ScaleFilter()28     virtual ~ScaleFilter() {};
29     void SetValue(const std::string& key, std::shared_ptr<void> value, int size) override;
30     std::string GetVertexShader() override;
31     std::string GetFragmentShader() override;
32     void SetScale(float scale);
33 
34 private:
35     void DoProcess(ProcessData& data) override;
LoadFilterParams()36     void LoadFilterParams() override {};
37     float scale_ = DEFAULT_SACLE;
38 };
39 } // namespace Rosen
40 } // namespace OHOS
41 #endif // SCALE_FILTER_H
42 
43