1 /*
2  * Copyright (c) 2024 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 #ifndef GRAPHICS_EFFECT_GE_GREY_SHADER_FILTER_H
16 #define GRAPHICS_EFFECT_GE_GREY_SHADER_FILTER_H
17 
18 #include "ge_shader_filter.h"
19 #include "ge_visual_effect.h"
20 
21 namespace OHOS {
22 namespace Rosen {
23 
24 class GEGreyShaderFilter : public GEShaderFilter {
25 public:
26     GEGreyShaderFilter(const Drawing::GEGreyShaderFilterParams& params);
27     ~GEGreyShaderFilter() override = default;
28 
29     std::shared_ptr<Drawing::Image> ProcessImage(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image> image,
30         const Drawing::Rect& src, const Drawing::Rect& dst) override;
31 
32 private:
33     bool InitGreyAdjustmentEffect();
34 
35     float greyCoef1_;
36     float greyCoef2_;
37 };
38 
39 } // namespace Rosen
40 } // namespace OHOS
41 
42 #endif // GRAPHICS_EFFECT_GE_GREY_SHADER_FILTER_H
43