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_CLIENT_CORE_RENDER_RS_MOTION_BLUR_FILTER_H 17 #define RENDER_SERVICE_CLIENT_CORE_RENDER_RS_MOTION_BLUR_FILTER_H 18 19 #include "common/rs_vector2.h" 20 #include "effect/runtime_effect.h" 21 #include "effect/runtime_shader_builder.h" 22 #include "render/rs_skia_filter.h" 23 24 namespace OHOS { 25 namespace Rosen { 26 27 class RSB_EXPORT MotionBlurParam { 28 public: 29 float radius = 0.f; 30 Vector2f scaleAnchor = Vector2f(0.f, 0.f); 31 MotionBlurParam(float r,Vector2f & s)32 explicit MotionBlurParam(float r, Vector2f& s) : radius(r), scaleAnchor(s) {} 33 ~MotionBlurParam() = default; 34 35 void Dump(std::string& out) const; 36 }; 37 38 class RSB_EXPORT RSMotionBlurFilter : public RSDrawingFilterOriginal { 39 public: 40 RSMotionBlurFilter(const std::shared_ptr<MotionBlurParam>& para); 41 RSMotionBlurFilter(const RSMotionBlurFilter&) = delete; 42 RSMotionBlurFilter operator=(const RSMotionBlurFilter&) = delete; 43 ~RSMotionBlurFilter() override; 44 PostProcess(Drawing::Canvas & canvas)45 void PostProcess(Drawing::Canvas& canvas) override {}; 46 std::string GetDescription() override; 47 void DrawImageRect(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image>& image, 48 const Drawing::Rect& src, const Drawing::Rect& dst) const override; PreProcess(std::shared_ptr<Drawing::Image> image)49 void PreProcess(std::shared_ptr<Drawing::Image> image) override {}; Compose(const std::shared_ptr<RSDrawingFilterOriginal> & other)50 std::shared_ptr<RSDrawingFilterOriginal> Compose( 51 const std::shared_ptr<RSDrawingFilterOriginal>& other) const override 52 { 53 return nullptr; 54 } 55 DisableMotionBlur(bool isDisableMotionBlur)56 void DisableMotionBlur(bool isDisableMotionBlur) override 57 { 58 disableMotionBlur_ = isDisableMotionBlur; 59 } 60 61 private: 62 void DrawMotionBlur(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image>& image, 63 const Drawing::Rect& src, const Drawing::Rect& dst) const; 64 std::shared_ptr<Drawing::RuntimeShaderBuilder> MakeMotionBlurShader( 65 std::shared_ptr<Drawing::ShaderEffect> srcImageShader, Vector2f& scaleAnchor, Vector2f& scaleSize, 66 Vector2f& rectOffset, float radius) const; 67 bool RectValid(const Drawing::Rect& rect1, const Drawing::Rect& rect2) const; 68 void CaculateRect(Vector2f& rectOffset, Vector2f& scaleSize, Vector2f& scaleAnchorCoord) const; 69 void OutputOriginalImage(Drawing::Canvas& canvas, const std::shared_ptr<Drawing::Image>& image, 70 const Drawing::Rect& src, const Drawing::Rect& dst) const; 71 72 friend class RSMarshallingHelper; 73 mutable Drawing::Rect lastRect_ = Drawing::Rect(0.f, 0.f, 0.f, 0.f); 74 mutable Drawing::Rect curRect_ = Drawing::Rect(0.f, 0.f, 0.f, 0.f); 75 std::shared_ptr<MotionBlurParam> motionBlurPara_ = nullptr; 76 bool disableMotionBlur_ = false; 77 78 static std::shared_ptr<Drawing::RuntimeEffect> motionBlurShaderEffect_; 79 }; 80 } // namespace Rosen 81 } // namespace OHOS 82 83 #endif // RENDER_SERVICE_CLIENT_CORE_RENDER_RS_MOTION_BLUR_FILTER_H