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>
32 #include <dali-toolkit/devel-api/visuals/visual-properties-devel.h>
33 #include <dali-toolkit/internal/visuals/visual-base-impl.h>
34 #include <dali-toolkit/internal/visuals/visual-factory-impl.h>
48 const char* EMBOSS_FRAGMENT_SOURCE =
50 "precision highp float;\n"
51 "varying mediump vec2 vTexCoord;\n"
52 "uniform sampler2D sTexture;\n"
53 "uniform vec2 uTexScale;\n"
54 "uniform vec3 uCoefficient;\n"
58 " vec4 color = uCoefficient.x * texture2D( sTexture, vTexCoord + vec2(0.0, -uTexScale.y) );\n"
59 " color += uCoefficient.y * texture2D( sTexture, vTexCoord );\n"
60 " color += uCoefficient.z * texture2D( sTexture, vTexCoord + vec2(0.0, uTexScale.y) );\n"
61 " gl_FragColor = color;\n"
65 const char* const COMPOSITE_FRAGMENT_SOURCE =
67 "varying mediump vec2 vTexCoord;\n"
68 "uniform sampler2D sTexture;\n"
69 "uniform lowp vec4 uEffectColor;\n"
72 " gl_FragColor = uEffectColor;\n"
73 " gl_FragColor.a *= texture2D( sTexture, vTexCoord).a;\n"
77 const char* const TEX_SCALE_UNIFORM_NAME( "uTexScale" );
78 const char* const COEFFICIENT_UNIFORM_NAME( "uCoefficient" );
79 const char* const COLOR_UNIFORM_NAME( "uEffectColor" );
83 EmbossFilter::EmbossFilter()
88 EmbossFilter::~EmbossFilter()
92 void EmbossFilter::Enable()
94 mImageForEmboss1 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat );
95 mImageForEmboss2 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat );
97 Property::Map customShader;
98 customShader[ Toolkit::Visual::Shader::Property::FRAGMENT_SHADER ] = EMBOSS_FRAGMENT_SOURCE;
99 Property::Map visualMap;
100 visualMap.Insert( Toolkit::DevelVisual::Property::SHADER, customShader );
102 // create actor to render input with applied emboss effect
103 mActorForInput1 = Toolkit::ImageView::New(mInputImage);
104 mActorForInput1.SetParentOrigin( ParentOrigin::CENTER );
105 mActorForInput1.SetSize(mTargetSize);
106 Vector2 textureScale( 1.5f/mTargetSize.width, 1.5f/mTargetSize.height);
107 mActorForInput1.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
108 mActorForInput1.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( 2.f, -1.f, -1.f ) );
109 // set EMBOSS custom shader
110 mActorForInput1.SetProperty( Toolkit::ImageView::Property::IMAGE, visualMap );
111 mRootActor.Add( mActorForInput1 );
113 mActorForInput2 = Toolkit::ImageView::New(mInputImage);
114 mActorForInput2.SetParentOrigin( ParentOrigin::CENTER );
115 mActorForInput2.SetSize(mTargetSize);
116 mActorForInput2.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
117 mActorForInput2.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( -1.f, -1.f, 2.f ) );
118 // set EMBOSS custom shader
119 mActorForInput2.SetProperty( Toolkit::ImageView::Property::IMAGE, visualMap );
120 mRootActor.Add( mActorForInput2 );
122 mActorForComposite = Actor::New();
123 mActorForComposite.SetParentOrigin( ParentOrigin::CENTER );
124 mActorForComposite.SetSize(mTargetSize);
125 mActorForComposite.SetColor( Color::BLACK );
127 customShader[ Toolkit::Visual::Shader::Property::FRAGMENT_SHADER ] = COMPOSITE_FRAGMENT_SOURCE;
129 mRootActor.Add( mActorForComposite );
131 Internal::InitializeVisual( mActorForComposite, mVisualForEmboss1, mImageForEmboss1 );
132 Toolkit::GetImplementation( mVisualForEmboss1 ).SetCustomShader( customShader );
133 mActorForComposite.GetRendererAt(0).RegisterProperty( COLOR_UNIFORM_NAME, Color::BLACK );
134 Internal::InitializeVisual( mActorForComposite, mVisualForEmboss2, mImageForEmboss2 );
135 Toolkit::GetImplementation( mVisualForEmboss2 ).SetCustomShader( customShader );
136 mActorForComposite.GetRendererAt(1).RegisterProperty( COLOR_UNIFORM_NAME, Color::WHITE );
142 void EmbossFilter::Disable()
148 mRootActor.Remove( mCameraActor );
149 mCameraActor.Reset();
152 if( mActorForInput1 )
154 mRootActor.Remove( mActorForInput1 );
155 mActorForInput1.Reset();
158 if( mActorForInput2 )
160 mRootActor.Remove( mActorForInput2 );
161 mActorForInput2.Reset();
164 if( mActorForComposite )
166 Toolkit::GetImplementation(mVisualForEmboss1).SetOffStage( mActorForComposite );
167 Toolkit::GetImplementation(mVisualForEmboss2).SetOffStage( mActorForComposite );
168 mVisualForEmboss1.Reset();
169 mVisualForEmboss2.Reset();
170 mRootActor.Remove( mActorForComposite );
171 mActorForComposite.Reset();
174 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
175 if( mRenderTaskForEmboss1 )
177 taskList.RemoveTask(mRenderTaskForEmboss1);
180 if( mRenderTaskForEmboss2 )
182 taskList.RemoveTask(mRenderTaskForEmboss2);
185 if( mRenderTaskForOutput )
187 taskList.RemoveTask( mRenderTaskForOutput );
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