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 16 #ifndef RENDER_SERVICE_BASE_RENDER_RENDER_RS_HPS_BLUR_H 17 #define RENDER_SERVICE_BASE_RENDER_RENDER_RS_HPS_BLUR_H 18 19 #include "common/rs_color_palette.h" 20 #include "draw/canvas.h" 21 #include "effect/color_filter.h" 22 #include "effect/runtime_effect.h" 23 #include "image/image.h" 24 #include "utils/matrix.h" 25 #include "utils/rect.h" 26 27 namespace OHOS { 28 namespace Rosen { 29 class RSB_EXPORT HpsBlurFilter { 30 public: 31 ~HpsBlurFilter() = default; 32 bool ApplyHpsBlur(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image>& image, 33 const Drawing::HpsBlurParameter& param, float alpha, 34 std::shared_ptr<Drawing::ColorFilter> colorFilter = nullptr, 35 const RSColor& color = RSColor()) const; GetHpsBlurFilter()36 const static HpsBlurFilter& GetHpsBlurFilter() 37 { 38 static HpsBlurFilter filter; 39 return filter; 40 } 41 42 private: 43 HpsBlurFilter() = default; 44 static Drawing::Matrix GetShaderTransform(const Drawing::Rect& blurRect, float scaleW = 1.0f, float scaleH = 1.0f); 45 std::shared_ptr<Drawing::RuntimeEffect> GetMixEffect() const; 46 bool SetShaderEffect(Drawing::Brush& brush, std::shared_ptr<Drawing::ShaderEffect> blurShader, 47 std::shared_ptr<Drawing::Image> imageCache) const; 48 float ApplyMaskColorFilter(Drawing::Canvas& offscreenCanvas, float alpha, const RSColor& maskColor) const; 49 }; 50 } // namespace Rosen 51 } // namespace OHOS 52 #endif // RENDER_SERVICE_BASE_RENDER_RENDER_RS_HPS_BLUR_H