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.
24 #include <dali/dali.h>
25 #include "image-filter.h"
37 * A spread/thicken filter. Expands an image into transparent areas.
39 class SpreadFilter : public ImageFilter
50 virtual ~SpreadFilter();
53 * Set the amount of spread in pixels.
54 * @param[in] spread The amount of spread
56 void SetSpread( float spread );
58 public: // From ImageFilter
59 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Enable
60 virtual void Enable();
62 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Disable
63 virtual void Disable();
65 /// @copydoc Dali::Toolkit::Internal::ImageFilter::Refresh
66 virtual void Refresh();
70 * Setup position and parameters for camera
75 * Setup render tasks for blur
77 void CreateRenderTasks();
80 SpreadFilter( const SpreadFilter& );
81 SpreadFilter& operator=( const SpreadFilter& );
83 private: // Attributes
85 CameraActor mCameraActor;
87 // To perform horizontal spread from mInputImage to mImageForHorz
88 RenderTask mRenderTaskForHorz;
89 ImageActor mActorForInput;
90 FrameBufferImage mImageForHorz;
91 ShaderEffect mShaderForHorz;
93 // To perform vertical spread from mImageForHorz to mOutputImage
94 RenderTask mRenderTaskForVert;
95 ImageActor mActorForHorz;
96 ShaderEffect mShaderForVert;
97 }; // class SpreadFilter
99 } // namespace Internal
101 } // namespace Toolkit
105 #endif // __DALI_TOOLKIT_INTERNAL_SPREAD_FILTER_H__