2 * Copyright (c) 2014 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/devel-api/rendering/renderer.h>
28 #include <dali-toolkit/devel-api/controls/renderer-factory/renderer-factory.h>
44 const char* EMBOSS_FRAGMENT_SOURCE =
46 "precision highp float;\n"
47 "varying mediump vec2 vTexCoord;\n"
48 "uniform sampler2D sTexture;\n"
49 "uniform vec2 uTexScale;\n"
50 "uniform vec3 uCoefficient;\n"
54 " vec4 color = uCoefficient.x * texture2D( sTexture, vTexCoord + vec2(0.0, -uTexScale.y) );\n"
55 " color += uCoefficient.y * texture2D( sTexture, vTexCoord );\n"
56 " color += uCoefficient.z * texture2D( sTexture, vTexCoord + vec2(0.0, uTexScale.y) );\n"
57 " gl_FragColor = color;\n"
61 const char* const COMPOSITE_FRAGMENT_SOURCE =
63 "varying mediump vec2 vTexCoord;\n"
64 "uniform sampler2D sTexture;\n"
65 "uniform lowp vec4 uEffectColor;\n"
68 " gl_FragColor = uEffectColor;\n"
69 " gl_FragColor.a *= texture2D( sTexture, vTexCoord).a;\n"
73 const char* const TEX_SCALE_UNIFORM_NAME( "uTexScale" );
74 const char* const COEFFICIENT_UNIFORM_NAME( "uCoefficient" );
75 const char* const COLOR_UNIFORM_NAME( "uEffectColor" );
79 EmbossFilter::EmbossFilter()
84 EmbossFilter::~EmbossFilter()
88 void EmbossFilter::Enable()
90 mImageForEmboss1 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
91 mImageForEmboss2 = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Image::UNUSED );
93 Property::Map customShader;
94 customShader[ "fragmentShader" ] = EMBOSS_FRAGMENT_SOURCE;
95 Property::Map rendererMap;
96 rendererMap.Insert( "shader", customShader );
98 // create actor to render input with applied emboss effect
99 mActorForInput1 = Toolkit::ImageView::New( mInputImage );
100 mActorForInput1.SetParentOrigin( ParentOrigin::CENTER );
101 mActorForInput1.SetSize(mTargetSize);
102 Vector2 textureScale( 1.5f/mTargetSize.width, 1.5f/mTargetSize.height);
103 mActorForInput1.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
104 mActorForInput1.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( 2.f, -1.f, -1.f ) );
105 // set EMBOSS custom shader
106 mActorForInput1.SetProperty( Toolkit::ImageView::Property::IMAGE, rendererMap );
107 mRootActor.Add( mActorForInput1 );
109 mActorForInput2 = Toolkit::ImageView::New( mInputImage );
110 mActorForInput2.SetParentOrigin( ParentOrigin::CENTER );
111 mActorForInput2.SetSize(mTargetSize);
112 mActorForInput2.RegisterProperty( TEX_SCALE_UNIFORM_NAME, textureScale );
113 mActorForInput2.RegisterProperty( COEFFICIENT_UNIFORM_NAME, Vector3( -1.f, -1.f, 2.f ) );
114 // set EMBOSS custom shader
115 mActorForInput2.SetProperty( Toolkit::ImageView::Property::IMAGE, rendererMap );
116 mRootActor.Add( mActorForInput2 );
118 mActorForComposite = Actor::New();
119 mActorForComposite.SetParentOrigin( ParentOrigin::CENTER );
120 mActorForComposite.SetSize(mTargetSize);
121 mActorForComposite.SetColor( Color::BLACK );
123 customShader[ "fragmentShader" ] = COMPOSITE_FRAGMENT_SOURCE;
124 rendererMap[ "shader"] = customShader;
125 Toolkit::RendererFactory rendererFactory = Toolkit::RendererFactory::Get();
126 mRendererForEmboss1 = rendererFactory.GetControlRenderer( mImageForEmboss1 );
127 mRendererForEmboss2 = rendererFactory.GetControlRenderer( mImageForEmboss2 );
128 // set COMPOSITE custom shader to both renderers
129 rendererFactory.ResetRenderer( mRendererForEmboss1, mActorForComposite, rendererMap);
130 rendererFactory.ResetRenderer( mRendererForEmboss2, mActorForComposite, rendererMap);
131 // apply renderers to the actor
132 mRendererForEmboss1.SetOnStage( mActorForComposite );
133 mRendererForEmboss2.SetOnStage( mActorForComposite );
134 mActorForComposite.GetRendererAt(0).RegisterProperty( COLOR_UNIFORM_NAME, Color::BLACK );
135 mActorForComposite.GetRendererAt(1).RegisterProperty( COLOR_UNIFORM_NAME, Color::WHITE );
136 mRootActor.Add( mActorForComposite );
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 mRendererForEmboss1.SetOffStage( mActorForComposite );
167 mRendererForEmboss2.SetOffStage( mActorForComposite );
168 mRendererForEmboss1.Reset();
169 mRendererForEmboss2.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);
189 void EmbossFilter::Refresh()
191 if( mRenderTaskForEmboss1 )
193 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
195 if( mRenderTaskForEmboss2 )
197 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
201 void EmbossFilter::SetSize( const Vector2& size )
204 if( mActorForInput1 )
206 mActorForInput1.SetSize(mTargetSize);
208 if( mActorForInput2 )
210 mActorForInput2.SetSize(mTargetSize);
212 if( mActorForComposite )
214 mActorForComposite.SetSize(mTargetSize);
218 void EmbossFilter::CreateRenderTasks()
220 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
222 mRenderTaskForEmboss1 = taskList.CreateTask();
223 mRenderTaskForEmboss1.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
224 mRenderTaskForEmboss1.SetSourceActor( mActorForInput1 );
225 mRenderTaskForEmboss1.SetExclusive(true);
226 mRenderTaskForEmboss1.SetInputEnabled( false );
227 mRenderTaskForEmboss1.SetClearColor( Vector4( 0.0f, 0.0f, 0.0f, 0.0f ) );
228 mRenderTaskForEmboss1.SetClearEnabled( true );
229 mRenderTaskForEmboss1.SetTargetFrameBuffer( mImageForEmboss1 );
230 mRenderTaskForEmboss1.SetCameraActor( mCameraActor );
232 mRenderTaskForEmboss2 = taskList.CreateTask();
233 mRenderTaskForEmboss2.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
234 mRenderTaskForEmboss2.SetSourceActor( mActorForInput2 );
235 mRenderTaskForEmboss2.SetExclusive(true);
236 mRenderTaskForEmboss2.SetInputEnabled( false );
237 mRenderTaskForEmboss2.SetClearColor( Vector4( 1.0f, 1.0f, 1.0f, 0.0f ) );
238 mRenderTaskForEmboss2.SetClearEnabled( true );
239 mRenderTaskForEmboss2.SetTargetFrameBuffer( mImageForEmboss2 );
240 mRenderTaskForEmboss2.SetCameraActor( mCameraActor );
242 mRenderTaskForOutput = taskList.CreateTask();
243 mRenderTaskForOutput.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
244 mRenderTaskForOutput.SetSourceActor( mActorForComposite );
245 mRenderTaskForOutput.SetExclusive(true);
246 mRenderTaskForOutput.SetInputEnabled( false );
247 mRenderTaskForOutput.SetClearColor( Vector4( 0.5f, 0.5f, 0.5f, 0.0f ) );
248 mRenderTaskForOutput.SetClearEnabled( true );
249 mRenderTaskForOutput.SetTargetFrameBuffer( mOutputImage );
250 mRenderTaskForOutput.SetCameraActor( mCameraActor );
253 } // namespace Internal
255 } // namespace Toolkit