1 #ifndef DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H
2 #define DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H
5 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali/public-api/rendering/frame-buffer.h>
23 #include <dali/public-api/rendering/renderer.h>
26 #include <dali-toolkit/devel-api/controls/gaussian-blur-view/gaussian-blur-view.h>
27 #include <dali-toolkit/devel-api/controls/super-blur-view/super-blur-view.h>
28 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
29 #include <dali-toolkit/public-api/controls/control-impl.h>
40 * SuperBlurView implementation class
42 class SuperBlurView : public Control
46 * @copydoc Dali::Toolkit::SuperBlurView::New
48 static Toolkit::SuperBlurView New(unsigned int blurLevels);
51 * @copydoc Dali::Toolkit::SuperBlurView::SetImage
53 void SetTexture(Texture texture);
56 * @copydoc Dali::Toolkit::SuperBlurView::GetBlurStrengthPropertyIndex
58 Property::Index GetBlurStrengthPropertyIndex() const;
61 * @copydoc Dali::Toolkit::SuperBlurView::SetBlurStrength
63 void SetBlurStrength(float blurStrength);
66 * @copydoc Dali::Toolkit::SuperBlurView::GetCurrentBlurStrength
68 float GetCurrentBlurStrength() const;
71 * @copydoc Dali::Toolkit::SuperBlurView::BlurFinishedSignal
73 Dali::Toolkit::SuperBlurView::SuperBlurViewSignal& BlurFinishedSignal();
76 * @copydoc Dali::Toolkit::SuperBlurView::GetBlurredTexture
78 Texture GetBlurredTexture(unsigned int level);
83 * Called when a property of an object of this type is set.
84 * @param[in] object The object whose property is set.
85 * @param[in] index The property index.
86 * @param[in] value The new property value.
88 static void SetProperty(BaseObject* object, Property::Index propertyIndex, const Property::Value& value);
91 * Called to retrieve a property of an object of this type.
92 * @param[in] object The object whose property is to be retrieved.
93 * @param[in] index The property index.
94 * @return The current value of the property.
96 static Property::Value GetProperty(BaseObject* object, Property::Index propertyIndex);
100 * Constructor. It initializes the SuperBlurView members
102 SuperBlurView(unsigned int blurLevels);
105 * A reference counted object may only be deleted by calling Unreference()
107 virtual ~SuperBlurView();
109 private: // from Control
111 * @copydoc Toolkit::Control::OnInitialize
113 void OnInitialize() override;
116 * @copydoc CustomActorImpl::OnSizeSet()
118 void OnSizeSet(const Vector3& targetSize) override;
121 * @copydoc CustomActorImpl::OnSceneConnection()
123 void OnSceneConnection(int depth) override;
126 * @copydoc CustomActorImpl::OnSceneDisconnection()
128 void OnSceneDisconnection() override;
131 * @copydoc CustomActorImpl::GetNaturalSize()
133 Vector3 GetNaturalSize() override;
137 * Carry out the idx-th pass of blurring
138 * @param[in] idx The blur pass index
139 * @param[in] texture The input texture for the current blurring, it is either the original image or the blurred texture from the previous pass
141 void BlurTexture(unsigned int idx, Texture texture);
144 * Signal handler to tell when the last blur view completes
145 * @param[in] blurView The blur view that just completed
147 void OnBlurViewFinished(Toolkit::GaussianBlurView blurView);
150 * Clear the resources used to create the blurred image
152 void ClearBlurResource();
155 std::vector<Toolkit::GaussianBlurView> mGaussianBlurView;
156 std::vector<FrameBuffer> mBlurredImage;
157 std::vector<Renderer> mRenderers;
158 Texture mInputTexture;
161 Toolkit::SuperBlurView::SuperBlurViewSignal mBlurFinishedSignal; ///< Signal emitted when blur has completed.
164 Property::Index mBlurStrengthPropertyIndex;
165 unsigned int mBlurLevels;
166 bool mResourcesCleared;
169 } // namespace Internal
171 // Helpers for public-api forwarding methods
172 inline Toolkit::Internal::SuperBlurView& GetImpl(Toolkit::SuperBlurView& obj)
174 DALI_ASSERT_ALWAYS(obj);
175 Dali::RefObject& handle = obj.GetImplementation();
176 return static_cast<Toolkit::Internal::SuperBlurView&>(handle);
179 inline const Toolkit::Internal::SuperBlurView& GetImpl(const Toolkit::SuperBlurView& obj)
181 DALI_ASSERT_ALWAYS(obj);
182 const Dali::RefObject& handle = obj.GetImplementation();
183 return static_cast<const Toolkit::Internal::SuperBlurView&>(handle);
186 } // namespace Toolkit
190 #endif // DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H