1 #ifndef __DALI_TOOLKIT_INTERNAL_SPREAD_FILTER_H__
2 #define __DALI_TOOLKIT_INTERNAL_SPREAD_FILTER_H__
5 * Copyright (c) 2014 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/actors/camera-actor.h>
23 #include <dali/public-api/actors/image-actor.h>
24 #include <dali/public-api/render-tasks/render-task.h>
25 #include <dali/public-api/shader-effects/shader-effect.h>
28 #include "image-filter.h"
40 * A spread/thicken filter. Expands an image into transparent areas.
42 class SpreadFilter : public ImageFilter
53 virtual ~SpreadFilter();
56 * Set the amount of spread in pixels.
57 * @param[in] spread The amount of spread
59 void SetSpread( float spread );
61 public: // From ImageFilter
62 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Enable
63 virtual void Enable();
65 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Disable
66 virtual void Disable();
68 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Refresh
69 virtual void Refresh();
73 * Setup position and parameters for camera
78 * Setup render tasks for blur
80 void CreateRenderTasks();
83 SpreadFilter( const SpreadFilter& );
84 SpreadFilter& operator=( const SpreadFilter& );
86 private: // Attributes
88 CameraActor mCameraActor;
90 // To perform horizontal spread from mInputImage to mImageForHorz
91 RenderTask mRenderTaskForHorz;
92 ImageActor mActorForInput;
93 FrameBufferImage mImageForHorz;
94 ShaderEffect mShaderForHorz;
96 // To perform vertical spread from mImageForHorz to mOutputImage
97 RenderTask mRenderTaskForVert;
98 ImageActor mActorForHorz;
99 ShaderEffect mShaderForVert;
100 }; // class SpreadFilter
102 } // namespace Internal
104 } // namespace Toolkit
108 #endif // __DALI_TOOLKIT_INTERNAL_SPREAD_FILTER_H__