1 #ifndef DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H
2 #define DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H
5 * Copyright (c) 2019 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/public-api/controls/control-impl.h>
27 #include <dali-toolkit/devel-api/controls/super-blur-view/super-blur-view.h>
28 #include <dali-toolkit/devel-api/controls/gaussian-blur-view/gaussian-blur-view.h>
29 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
43 * SuperBlurView implementation class
45 class SuperBlurView : public Control
51 * @copydoc Dali::Toolkit::SuperBlurView::New
53 static Toolkit::SuperBlurView New( unsigned int blurLevels );
56 * @copydoc Dali::Toolkit::SuperBlurView::SetImage
58 void SetTexture( Texture texture );
61 * @copydoc Dali::Toolkit::SuperBlurView::GetBlurStrengthPropertyIndex
63 Property::Index GetBlurStrengthPropertyIndex() const;
66 * @copydoc Dali::Toolkit::SuperBlurView::SetBlurStrength
68 void SetBlurStrength( float blurStrength );
71 * @copydoc Dali::Toolkit::SuperBlurView::GetCurrentBlurStrength
73 float GetCurrentBlurStrength() const;
76 * @copydoc Dali::Toolkit::SuperBlurView::BlurFinishedSignal
78 Dali::Toolkit::SuperBlurView::SuperBlurViewSignal& BlurFinishedSignal();
81 * @copydoc Dali::Toolkit::SuperBlurView::GetBlurredTexture
83 Texture GetBlurredTexture( unsigned int level );
88 * Called when a property of an object of this type is set.
89 * @param[in] object The object whose property is set.
90 * @param[in] index The property index.
91 * @param[in] value The new property value.
93 static void SetProperty( BaseObject* object, Property::Index propertyIndex, const Property::Value& value );
96 * Called to retrieve a property of an object of this type.
97 * @param[in] object The object whose property is to be retrieved.
98 * @param[in] index The property index.
99 * @return The current value of the property.
101 static Property::Value GetProperty( BaseObject* object, Property::Index propertyIndex );
106 * Constructor. It initializes the SuperBlurView members
108 SuperBlurView( unsigned int blurLevels );
111 * A reference counted object may only be deleted by calling Unreference()
113 virtual ~SuperBlurView();
115 private: // from Control
118 * @copydoc Toolkit::Control::OnInitialize
120 virtual void OnInitialize();
123 * @copydoc CustomActorImpl::OnSizeSet()
125 virtual void OnSizeSet(const Vector3& targetSize);
128 * @copydoc CustomActorImpl::OnStageConnection()
130 virtual void OnStageConnection( int depth );
133 * @copydoc CustomActorImpl::OnStageDisconnection()
135 virtual void OnStageDisconnection();
138 * @copydoc CustomActorImpl::GetNaturalSize()
140 virtual Vector3 GetNaturalSize();
145 * Carry out the idx-th pass of blurring
146 * @param[in] idx The blur pass index
147 * @param[in] texture The input texture for the current blurring, it is either the original image or the blurred texture from the previous pass
149 void BlurTexture( unsigned int idx, Texture texture );
152 * Signal handler to tell when the last blur view completes
153 * @param[in] blurView The blur view that just completed
155 void OnBlurViewFinished( Toolkit::GaussianBlurView blurView );
158 * Clear the resources used to create the blurred image
160 void ClearBlurResource();
163 std::vector<Toolkit::GaussianBlurView> mGaussianBlurView;
164 std::vector<FrameBuffer> mBlurredImage;
165 std::vector<Renderer> mRenderers;
166 Texture mInputTexture;
169 Toolkit::SuperBlurView::SuperBlurViewSignal mBlurFinishedSignal; ///< Signal emitted when blur has completed.
172 Property::Index mBlurStrengthPropertyIndex;
173 unsigned int mBlurLevels;
174 bool mResourcesCleared;
179 // Helpers for public-api forwarding methods
180 inline Toolkit::Internal::SuperBlurView& GetImpl( Toolkit::SuperBlurView& obj )
182 DALI_ASSERT_ALWAYS(obj);
183 Dali::RefObject& handle = obj.GetImplementation();
184 return static_cast<Toolkit::Internal::SuperBlurView&>(handle);
187 inline const Toolkit::Internal::SuperBlurView& GetImpl( const Toolkit::SuperBlurView& obj )
189 DALI_ASSERT_ALWAYS(obj);
190 const Dali::RefObject& handle = obj.GetImplementation();
191 return static_cast<const Toolkit::Internal::SuperBlurView&>(handle);
198 #endif // DALI_TOOLKIT_INTERNAL_SUPER_BLUR_VIEW_H