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/devel-api/visual-factory/visual-factory.h>
45 const char* EMBOSS_FRAGMENT_SOURCE =
47 "precision highp float;\n"
48 "varying mediump vec2 vTexCoord;\n"
49 "uniform sampler2D sTexture;\n"
50 "uniform vec2 uTexScale;\n"
51 "uniform vec3 uCoefficient;\n"
55 " vec4 color = uCoefficient.x * texture2D( sTexture, vTexCoord + vec2(0.0, -uTexScale.y) );\n"
56 " color += uCoefficient.y * texture2D( sTexture, vTexCoord );\n"
57 " color += uCoefficient.z * texture2D( sTexture, vTexCoord + vec2(0.0, uTexScale.y) );\n"
58 " gl_FragColor = color;\n"
62 const char* const COMPOSITE_FRAGMENT_SOURCE =
64 "varying mediump vec2 vTexCoord;\n"
65 "uniform sampler2D sTexture;\n"
66 "uniform lowp vec4 uEffectColor;\n"
69 " gl_FragColor = uEffectColor;\n"
70 " gl_FragColor.a *= texture2D( sTexture, vTexCoord).a;\n"
74 const char* const TEX_SCALE_UNIFORM_NAME( "uTexScale" );
75 const char* const COEFFICIENT_UNIFORM_NAME( "uCoefficient" );
76 const char* const COLOR_UNIFORM_NAME( "uEffectColor" );
80 EmbossFilter::EmbossFilter()
85 EmbossFilter::~EmbossFilter()
89 void EmbossFilter::Enable()
91 mImageForEmboss1 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
92 mImageForEmboss2 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
94 Property::Map customShader;
95 customShader[ "fragmentShader" ] = EMBOSS_FRAGMENT_SOURCE;
96 Property::Map rendererMap;
97 rendererMap.Insert( "shader", customShader );
99 // create actor to render input with applied emboss effect
100 mActorForInput1 = Toolkit::ImageView::New(mInputImage);
101 mActorForInput1.SetParentOrigin( ParentOrigin::CENTER );
102 mActorForInput1.SetSize(mTargetSize);
103 Vector2 textureScale( 1.5f/mTargetSize.width, 1.5f/mTargetSize.height);
104 mActorForInput1.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
105 mActorForInput1.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( 2.f, -1.f, -1.f ) );
106 // set EMBOSS custom shader
107 mActorForInput1.SetProperty( Toolkit::ImageView::Property::IMAGE, rendererMap );
108 mRootActor.Add( mActorForInput1 );
110 mActorForInput2 = Toolkit::ImageView::New(mInputImage);
111 mActorForInput2.SetParentOrigin( ParentOrigin::CENTER );
112 mActorForInput2.SetSize(mTargetSize);
113 mActorForInput2.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
114 mActorForInput2.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( -1.f, -1.f, 2.f ) );
115 // set EMBOSS custom shader
116 mActorForInput2.SetProperty( Toolkit::ImageView::Property::IMAGE, rendererMap );
117 mRootActor.Add( mActorForInput2 );
119 mActorForComposite = Actor::New();
120 mActorForComposite.SetParentOrigin( ParentOrigin::CENTER );
121 mActorForComposite.SetSize(mTargetSize);
122 mActorForComposite.SetColor( Color::BLACK );
124 customShader[ "fragmentShader" ] = COMPOSITE_FRAGMENT_SOURCE;
125 rendererMap[ "shader"] = customShader;
126 rendererMap[ "rendererType"] = "IMAGE";
128 mRootActor.Add( mActorForComposite );
130 InitializeVisual( mActorForComposite, mVisualForEmboss1, rendererMap );
131 InitializeVisual( mActorForComposite, mVisualForEmboss2, rendererMap );
133 TextureSet textureSet1 = TextureSet::New();
134 TextureSetImage( textureSet1, 0, mImageForEmboss1 );
135 mActorForComposite.GetRendererAt(0).SetTextures( textureSet1 );
136 mActorForComposite.GetRendererAt(0).RegisterProperty( COLOR_UNIFORM_NAME, Color::BLACK );
138 TextureSet textureSet2 = TextureSet::New();
139 TextureSetImage( textureSet2, 0, mImageForEmboss2 );
140 mActorForComposite.GetRendererAt(1).SetTextures( textureSet2 );
141 mActorForComposite.GetRendererAt(1).RegisterProperty( COLOR_UNIFORM_NAME, Color::WHITE );
147 void EmbossFilter::Disable()
153 mRootActor.Remove( mCameraActor );
154 mCameraActor.Reset();
157 if( mActorForInput1 )
159 mRootActor.Remove( mActorForInput1 );
160 mActorForInput1.Reset();
163 if( mActorForInput2 )
165 mRootActor.Remove( mActorForInput2 );
166 mActorForInput2.Reset();
169 if( mActorForComposite )
171 mVisualForEmboss1.SetOffStage( mActorForComposite );
172 mVisualForEmboss2.SetOffStage( mActorForComposite );
173 mVisualForEmboss1.Reset();
174 mVisualForEmboss2.Reset();
175 mRootActor.Remove( mActorForComposite );
176 mActorForComposite.Reset();
179 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
180 if( mRenderTaskForEmboss1 )
182 taskList.RemoveTask(mRenderTaskForEmboss1);
185 if( mRenderTaskForEmboss2 )
187 taskList.RemoveTask(mRenderTaskForEmboss2);
194 void EmbossFilter::Refresh()
196 if( mRenderTaskForEmboss1 )
198 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
200 if( mRenderTaskForEmboss2 )
202 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
206 void EmbossFilter::SetSize( const Vector2& size )
209 if( mActorForInput1 )
211 mActorForInput1.SetSize(mTargetSize);
213 if( mActorForInput2 )
215 mActorForInput2.SetSize(mTargetSize);
217 if( mActorForComposite )
219 mActorForComposite.SetSize(mTargetSize);
223 void EmbossFilter::CreateRenderTasks()
225 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
227 mRenderTaskForEmboss1 = taskList.CreateTask();
228 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
229 mRenderTaskForEmboss1.SetSourceActor( mActorForInput1 );
230 mRenderTaskForEmboss1.SetExclusive(true);
231 mRenderTaskForEmboss1.SetInputEnabled( false );
232 mRenderTaskForEmboss1.SetClearColor( Vector4( 0.0f, 0.0f, 0.0f, 0.0f ) );
233 mRenderTaskForEmboss1.SetClearEnabled( true );
234 mRenderTaskForEmboss1.SetTargetFrameBuffer( mImageForEmboss1 );
235 mRenderTaskForEmboss1.SetCameraActor( mCameraActor );
237 mRenderTaskForEmboss2 = taskList.CreateTask();
238 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
239 mRenderTaskForEmboss2.SetSourceActor( mActorForInput2 );
240 mRenderTaskForEmboss2.SetExclusive(true);
241 mRenderTaskForEmboss2.SetInputEnabled( false );
242 mRenderTaskForEmboss2.SetClearColor( Vector4( 1.0f, 1.0f, 1.0f, 0.0f ) );
243 mRenderTaskForEmboss2.SetClearEnabled( true );
244 mRenderTaskForEmboss2.SetTargetFrameBuffer( mImageForEmboss2 );
245 mRenderTaskForEmboss2.SetCameraActor( mCameraActor );
247 mRenderTaskForOutput = taskList.CreateTask();
248 mRenderTaskForOutput.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
249 mRenderTaskForOutput.SetSourceActor( mActorForComposite );
250 mRenderTaskForOutput.SetExclusive(true);
251 mRenderTaskForOutput.SetInputEnabled( false );
252 mRenderTaskForOutput.SetClearColor( Vector4( 0.5f, 0.5f, 0.5f, 0.0f ) );
253 mRenderTaskForOutput.SetClearEnabled( true );
254 mRenderTaskForOutput.SetTargetFrameBuffer( mOutputImage );
255 mRenderTaskForOutput.SetCameraActor( mCameraActor );
258 } // namespace Internal
260 } // namespace Toolkit