2 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "emboss-filter.h"
23 #include <dali/public-api/animation/constraints.h>
24 #include <dali/public-api/common/stage.h>
25 #include <dali/public-api/object/property-map.h>
26 #include <dali/public-api/render-tasks/render-task-list.h>
27 #include <dali/public-api/rendering/renderer.h>
28 #include <dali/devel-api/images/texture-set-image.h>
31 #include <dali-toolkit/public-api/visuals/visual-properties.h>
32 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
46 const char* EMBOSS_FRAGMENT_SOURCE =
48 "precision highp float;\n"
49 "varying mediump vec2 vTexCoord;\n"
50 "uniform sampler2D sTexture;\n"
51 "uniform vec2 uTexScale;\n"
52 "uniform vec3 uCoefficient;\n"
56 " vec4 color = uCoefficient.x * texture2D( sTexture, vTexCoord + vec2(0.0, -uTexScale.y) );\n"
57 " color += uCoefficient.y * texture2D( sTexture, vTexCoord );\n"
58 " color += uCoefficient.z * texture2D( sTexture, vTexCoord + vec2(0.0, uTexScale.y) );\n"
59 " gl_FragColor = color;\n"
63 const char* const COMPOSITE_FRAGMENT_SOURCE =
65 "varying mediump vec2 vTexCoord;\n"
66 "uniform sampler2D sTexture;\n"
67 "uniform lowp vec4 uEffectColor;\n"
70 " gl_FragColor = uEffectColor;\n"
71 " gl_FragColor.a *= texture2D( sTexture, vTexCoord).a;\n"
75 const char* const TEX_SCALE_UNIFORM_NAME( "uTexScale" );
76 const char* const COEFFICIENT_UNIFORM_NAME( "uCoefficient" );
77 const char* const COLOR_UNIFORM_NAME( "uEffectColor" );
81 EmbossFilter::EmbossFilter()
86 EmbossFilter::~EmbossFilter()
90 void EmbossFilter::Enable()
92 mImageForEmboss1 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
93 mImageForEmboss2 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
95 Property::Map customShader;
96 customShader[ Toolkit::Visual::Shader::Property::FRAGMENT_SHADER ] = EMBOSS_FRAGMENT_SOURCE;
97 Property::Map visualMap;
98 visualMap.Insert( Toolkit::Visual::Property::SHADER, customShader );
100 // create actor to render input with applied emboss effect
101 mActorForInput1 = Toolkit::ImageView::New(mInputImage);
102 mActorForInput1.SetParentOrigin( ParentOrigin::CENTER );
103 mActorForInput1.SetSize(mTargetSize);
104 Vector2 textureScale( 1.5f/mTargetSize.width, 1.5f/mTargetSize.height);
105 mActorForInput1.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
106 mActorForInput1.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( 2.f, -1.f, -1.f ) );
107 // set EMBOSS custom shader
108 mActorForInput1.SetProperty( Toolkit::ImageView::Property::IMAGE, visualMap );
109 mRootActor.Add( mActorForInput1 );
111 mActorForInput2 = Toolkit::ImageView::New(mInputImage);
112 mActorForInput2.SetParentOrigin( ParentOrigin::CENTER );
113 mActorForInput2.SetSize(mTargetSize);
114 mActorForInput2.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
115 mActorForInput2.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( -1.f, -1.f, 2.f ) );
116 // set EMBOSS custom shader
117 mActorForInput2.SetProperty( Toolkit::ImageView::Property::IMAGE, visualMap );
118 mRootActor.Add( mActorForInput2 );
120 mActorForComposite = Actor::New();
121 mActorForComposite.SetParentOrigin( ParentOrigin::CENTER );
122 mActorForComposite.SetSize(mTargetSize);
123 mActorForComposite.SetColor( Color::BLACK );
125 customShader[ Toolkit::Visual::Shader::Property::FRAGMENT_SHADER ] = COMPOSITE_FRAGMENT_SOURCE;
126 visualMap[ Toolkit::Visual::Property::SHADER ] = customShader;
127 visualMap[ Toolkit::Visual::Property::TYPE ] = Toolkit::Visual::IMAGE;
129 mRootActor.Add( mActorForComposite );
131 InitializeVisual( mActorForComposite, mVisualForEmboss1, visualMap );
132 InitializeVisual( mActorForComposite, mVisualForEmboss2, visualMap );
134 TextureSet textureSet1 = TextureSet::New();
135 TextureSetImage( textureSet1, 0, mImageForEmboss1 );
136 mActorForComposite.GetRendererAt(0).SetTextures( textureSet1 );
137 mActorForComposite.GetRendererAt(0).RegisterProperty( COLOR_UNIFORM_NAME, Color::BLACK );
139 TextureSet textureSet2 = TextureSet::New();
140 TextureSetImage( textureSet2, 0, mImageForEmboss2 );
141 mActorForComposite.GetRendererAt(1).SetTextures( textureSet2 );
142 mActorForComposite.GetRendererAt(1).RegisterProperty( COLOR_UNIFORM_NAME, Color::WHITE );
148 void EmbossFilter::Disable()
154 mRootActor.Remove( mCameraActor );
155 mCameraActor.Reset();
158 if( mActorForInput1 )
160 mRootActor.Remove( mActorForInput1 );
161 mActorForInput1.Reset();
164 if( mActorForInput2 )
166 mRootActor.Remove( mActorForInput2 );
167 mActorForInput2.Reset();
170 if( mActorForComposite )
172 mVisualForEmboss1.SetOffStage( mActorForComposite );
173 mVisualForEmboss2.SetOffStage( mActorForComposite );
174 mVisualForEmboss1.Reset();
175 mVisualForEmboss2.Reset();
176 mRootActor.Remove( mActorForComposite );
177 mActorForComposite.Reset();
180 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
181 if( mRenderTaskForEmboss1 )
183 taskList.RemoveTask(mRenderTaskForEmboss1);
186 if( mRenderTaskForEmboss2 )
188 taskList.RemoveTask(mRenderTaskForEmboss2);
195 void EmbossFilter::Refresh()
197 if( mRenderTaskForEmboss1 )
199 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
201 if( mRenderTaskForEmboss2 )
203 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
207 void EmbossFilter::SetSize( const Vector2& size )
210 if( mActorForInput1 )
212 mActorForInput1.SetSize(mTargetSize);
214 if( mActorForInput2 )
216 mActorForInput2.SetSize(mTargetSize);
218 if( mActorForComposite )
220 mActorForComposite.SetSize(mTargetSize);
224 void EmbossFilter::CreateRenderTasks()
226 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
228 mRenderTaskForEmboss1 = taskList.CreateTask();
229 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
230 mRenderTaskForEmboss1.SetSourceActor( mActorForInput1 );
231 mRenderTaskForEmboss1.SetExclusive(true);
232 mRenderTaskForEmboss1.SetInputEnabled( false );
233 mRenderTaskForEmboss1.SetClearColor( Vector4( 0.0f, 0.0f, 0.0f, 0.0f ) );
234 mRenderTaskForEmboss1.SetClearEnabled( true );
235 mRenderTaskForEmboss1.SetTargetFrameBuffer( mImageForEmboss1 );
236 mRenderTaskForEmboss1.SetCameraActor( mCameraActor );
238 mRenderTaskForEmboss2 = taskList.CreateTask();
239 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
240 mRenderTaskForEmboss2.SetSourceActor( mActorForInput2 );
241 mRenderTaskForEmboss2.SetExclusive(true);
242 mRenderTaskForEmboss2.SetInputEnabled( false );
243 mRenderTaskForEmboss2.SetClearColor( Vector4( 1.0f, 1.0f, 1.0f, 0.0f ) );
244 mRenderTaskForEmboss2.SetClearEnabled( true );
245 mRenderTaskForEmboss2.SetTargetFrameBuffer( mImageForEmboss2 );
246 mRenderTaskForEmboss2.SetCameraActor( mCameraActor );
248 mRenderTaskForOutput = taskList.CreateTask();
249 mRenderTaskForOutput.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
250 mRenderTaskForOutput.SetSourceActor( mActorForComposite );
251 mRenderTaskForOutput.SetExclusive(true);
252 mRenderTaskForOutput.SetInputEnabled( false );
253 mRenderTaskForOutput.SetClearColor( Vector4( 0.5f, 0.5f, 0.5f, 0.0f ) );
254 mRenderTaskForOutput.SetClearEnabled( true );
255 mRenderTaskForOutput.SetTargetFrameBuffer( mOutputImage );
256 mRenderTaskForOutput.SetCameraActor( mCameraActor );
259 } // namespace Internal
261 } // namespace Toolkit