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 "effects-view-impl.h"
22 #include <dali/public-api/animation/constraint.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/object/type-registry.h>
27 #include <dali/public-api/object/type-registry-helper.h>
28 #include <dali/public-api/render-tasks/render-task-list.h>
29 #include <dali/public-api/rendering/renderer.h>
30 #include <dali/devel-api/images/texture-set-image.h>
33 #include <dali-toolkit/public-api/visuals/visual-properties.h>
34 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
35 #include <dali-toolkit/devel-api/visual-factory/visual-factory.h>
36 #include <dali-toolkit/internal/filters/blur-two-pass-filter.h>
37 #include <dali-toolkit/internal/filters/emboss-filter.h>
38 #include <dali-toolkit/internal/filters/spread-filter.h>
39 #include <dali-toolkit/internal/visuals/visual-base-impl.h>
53 Dali::BaseHandle Create()
55 return EffectsView::New();
58 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::EffectsView, Toolkit::Control, Create )
59 DALI_PROPERTY_REGISTRATION( Toolkit, EffectsView, "effectSize", INTEGER, EFFECT_SIZE )
60 DALI_ANIMATABLE_PROPERTY_REGISTRATION( Toolkit, EffectsView, "effectOffset", VECTOR3, EFFECT_OFFSET )
61 DALI_ANIMATABLE_PROPERTY_REGISTRATION_WITH_DEFAULT( Toolkit, EffectsView, "effectColor", Color::WHITE, EFFECT_COLOR )
62 DALI_TYPE_REGISTRATION_END()
64 const Pixel::Format EFFECTS_VIEW_DEFAULT_PIXEL_FORMAT = Pixel::RGBA8888;
65 const float ARBITRARY_FIELD_OF_VIEW = Math::PI / 4.0f;
66 const Vector4 EFFECTS_VIEW_DEFAULT_BACKGROUND_COLOR( 1.0f, 1.0f, 1.0f, 0.0 );
67 const bool EFFECTS_VIEW_REFRESH_ON_DEMAND(false);
69 #define DALI_COMPOSE_SHADER(STR) #STR
71 const char* EFFECTS_VIEW_VERTEX_SOURCE = DALI_COMPOSE_SHADER(
72 attribute mediump vec2 aPosition;\n
73 varying mediump vec2 vTexCoord;\n
74 uniform mediump mat4 uMvpMatrix;\n
75 uniform mediump vec3 uSize;\n
76 uniform mediump vec3 effectOffset;\n
80 mediump vec4 vertexPosition = vec4(aPosition, 0.0, 1.0);\n
81 vertexPosition.xyz *= uSize;\n
82 vertexPosition.xyz += effectOffset;\n
83 vertexPosition = uMvpMatrix * vertexPosition;\n
85 vTexCoord = aPosition + vec2(0.5);\n
86 gl_Position = vertexPosition;\n
90 const char* EFFECTS_VIEW_FRAGMENT_SOURCE = DALI_COMPOSE_SHADER(
91 varying mediump vec2 vTexCoord;\n
92 uniform sampler2D sTexture;\n
93 uniform lowp vec4 effectColor;\n
97 gl_FragColor = effectColor;\n
98 gl_FragColor.a *= texture2D( sTexture, vTexCoord).a;\n
102 const float BLUR_KERNEL0[] = { 12.0f/16.0f,
103 2.0f/16.0f, 2.0f/16.0f };
105 const float BLUR_KERNEL1[] = { 8.0f/16.0f,
106 4.0f/16.0f, 4.0f/16.0f };
108 const float BLUR_KERNEL2[] = { 6.0f/16.0f,
109 2.5f/16.0f, 2.5f/16.0f,
110 1.5f/16.0f, 1.5f/16.0f,
111 1.0f/16.0f, 1.0f/16.0f };
113 const float BLUR_KERNEL3[] = { 4.0f/16.0f,
114 3.0f/16.0f, 2.0f/16.0f,
115 2.0f/16.0f, 2.0f/16.0f,
116 1.0f/16.0f, 1.0f/16.0f };
118 const float BLUR_KERNEL4[] = { 3.0f/16.0f,
119 2.5f/16.0f, 2.5f/16.0f,
120 1.75f/16.0f, 1.75f/16.0f,
121 1.25f/16.0f, 1.25f/16.0f,
122 1.0f/16.0f, 1.0f/16.0f };
126 Toolkit::EffectsView EffectsView::New()
128 EffectsView* effectsView = new EffectsView;
130 Toolkit::EffectsView handle = Toolkit::EffectsView( *effectsView );
132 // Second-phase init of the implementation
133 // This can only be done after the CustomActor connection has been made...
134 effectsView->Initialize();
139 EffectsView::EffectsView()
140 : Control( ControlBehaviour( ACTOR_BEHAVIOUR_NONE ) ),
141 mChildrenRoot(Actor::New()),
142 mBackgroundColor( EFFECTS_VIEW_DEFAULT_BACKGROUND_COLOR ),
143 mTargetSize( Vector2::ZERO ),
144 mLastSize( Vector2::ZERO ),
146 mEffectType( Toolkit::EffectsView::INVALID_TYPE ),
147 mPixelFormat( EFFECTS_VIEW_DEFAULT_PIXEL_FORMAT ),
149 mRefreshOnDemand(EFFECTS_VIEW_REFRESH_ON_DEMAND)
153 EffectsView::~EffectsView()
158 void EffectsView::SetType( Toolkit::EffectsView::EffectType type )
160 if( mEffectType != type )
168 case Toolkit::EffectsView::DROP_SHADOW:
170 mFilters.PushBack( new SpreadFilter );
171 mFilters.PushBack( new BlurTwoPassFilter );
174 case Toolkit::EffectsView::EMBOSS:
176 mFilters.PushBack( new SpreadFilter );
177 mFilters.PushBack( new EmbossFilter );
178 mFilters.PushBack( new BlurTwoPassFilter );
187 Image dummyImage; // Dummy image, force creation of an image visual
188 InitializeVisual( self, mVisualPostFilter, dummyImage );
189 Property::Map customShader;
190 customShader[ Toolkit::Visual::Shader::Property::VERTEX_SHADER ] = EFFECTS_VIEW_VERTEX_SOURCE;
191 customShader[ Toolkit::Visual::Shader::Property::FRAGMENT_SHADER ] = EFFECTS_VIEW_FRAGMENT_SOURCE;
192 Toolkit::GetImplementation( mVisualPostFilter ).SetCustomShader( customShader );
198 Toolkit::EffectsView::EffectType EffectsView::GetType() const
203 void EffectsView::Enable()
205 // make sure resources are allocated and start the render tasks processing
211 void EffectsView::Disable()
213 // stop render tasks processing
214 // Note: render target resources are automatically freed since we set the Image::Unused flag
219 void EffectsView::Refresh()
221 RefreshRenderTasks();
224 void EffectsView::SetRefreshOnDemand( bool onDemand )
226 mRefreshOnDemand = onDemand;
228 RefreshRenderTasks();
231 void EffectsView::SetPixelFormat( Pixel::Format pixelFormat )
233 mPixelFormat = pixelFormat;
236 void EffectsView::SetBackgroundColor( const Vector4& color )
238 mBackgroundColor = color;
241 Vector4 EffectsView::GetBackgroundColor() const
243 return mBackgroundColor;
246 void EffectsView::SetEffectSize( int effectSize )
248 mEffectSize = effectSize;
252 const size_t numFilters( mFilters.Size() );
253 for( size_t i = 0; i < numFilters; ++i )
255 mFilters[i]->Disable();
260 for( size_t i = 0; i < numFilters; ++i )
262 mFilters[i]->Enable();
267 int EffectsView::GetEffectSize()
273 void EffectsView::OnInitialize()
275 CustomActor self = Self();
276 mChildrenRoot.SetParentOrigin( ParentOrigin::CENTER );
277 self.Add( mChildrenRoot );
280 void EffectsView::OnSizeSet(const Vector3& targetSize)
282 Control::OnSizeSet( targetSize );
284 mTargetSize = Vector2(targetSize);
286 // if we are already on stage, need to update render target sizes now to reflect the new size of this actor
289 if( mLastSize != Vector2::ZERO )
296 mChildrenRoot.SetSize( targetSize );
299 void EffectsView::OnStageConnection( int depth )
301 Control::OnStageConnection( depth );
306 if( mVisualPostFilter )
308 mVisualPostFilter.SetOnStage( self );
310 if( mVisualForChildren )
312 mVisualForChildren.SetOnStage( self );
316 void EffectsView::OnStageDisconnection()
320 const size_t numFilters( mFilters.Size() );
321 for( size_t i = 0; i < numFilters; ++i )
323 mFilters[i]->Disable();
327 if( mVisualPostFilter )
329 mVisualPostFilter.SetOffStage( self );
331 if( mVisualForChildren )
333 mVisualForChildren.SetOffStage( self );
336 Control::OnStageDisconnection();
339 void EffectsView::OnChildAdd( Actor& child )
341 Control::OnChildAdd( child );
343 if( child != mChildrenRoot && child != mCameraForChildren )
345 mChildrenRoot.Add( child );
349 void EffectsView::OnChildRemove( Actor& child )
351 mChildrenRoot.Remove( child );
353 Control::OnChildRemove( child );
356 void EffectsView::SetupFilters()
358 switch( mEffectType )
360 case Toolkit::EffectsView::DROP_SHADOW:
362 SpreadFilter* spreadFilter = static_cast< SpreadFilter* >( mFilters[0] );
363 spreadFilter->SetInputImage( mImageForChildren );
364 spreadFilter->SetOutputImage( mImagePostFilter );
365 spreadFilter->SetRootActor( mChildrenRoot );
366 spreadFilter->SetBackgroundColor( mBackgroundColor );
367 spreadFilter->SetPixelFormat( mPixelFormat );
368 spreadFilter->SetSize( mTargetSize );
369 spreadFilter->SetSpread( mEffectSize );
371 BlurTwoPassFilter* blurFilter = static_cast< BlurTwoPassFilter* >( mFilters[1] );
372 blurFilter->SetInputImage( mImagePostFilter );
373 blurFilter->SetOutputImage( mImagePostFilter );
374 blurFilter->SetRootActor( mChildrenRoot );
375 blurFilter->SetBackgroundColor( mBackgroundColor );
376 blurFilter->SetPixelFormat( mPixelFormat );
377 blurFilter->SetSize( mTargetSize );
379 const float* kernel(NULL);
380 size_t kernelSize(0);
381 switch( mEffectSize )
383 case 4: { kernel = BLUR_KERNEL4; kernelSize = sizeof(BLUR_KERNEL4)/sizeof(BLUR_KERNEL4[0]); break; }
384 case 3: { kernel = BLUR_KERNEL3; kernelSize = sizeof(BLUR_KERNEL3)/sizeof(BLUR_KERNEL3[0]); break; }
385 case 2: { kernel = BLUR_KERNEL2; kernelSize = sizeof(BLUR_KERNEL2)/sizeof(BLUR_KERNEL2[0]); break; }
386 case 1: { kernel = BLUR_KERNEL1; kernelSize = sizeof(BLUR_KERNEL1)/sizeof(BLUR_KERNEL1[0]); break; }
388 default: { kernel = BLUR_KERNEL0; kernelSize = sizeof(BLUR_KERNEL0)/sizeof(BLUR_KERNEL0[0]); break; }
390 blurFilter->CreateKernel( kernel, kernelSize );
393 case Toolkit::EffectsView::EMBOSS:
395 SpreadFilter* spreadFilter = static_cast< SpreadFilter* >( mFilters[0] );
396 spreadFilter->SetInputImage( mImageForChildren );
397 spreadFilter->SetOutputImage( mImagePostFilter );
398 spreadFilter->SetRootActor( mChildrenRoot );
399 spreadFilter->SetBackgroundColor( mBackgroundColor );
400 spreadFilter->SetPixelFormat( Pixel::RGBA8888 );
401 spreadFilter->SetSize( mTargetSize );
402 spreadFilter->SetSpread( mEffectSize );
404 EmbossFilter* embossFilter = static_cast< EmbossFilter* >( mFilters[1] );
405 embossFilter->SetInputImage( mImagePostFilter );
406 embossFilter->SetOutputImage( mImagePostFilter );
407 embossFilter->SetRootActor( mChildrenRoot );
408 embossFilter->SetBackgroundColor( mBackgroundColor );
409 embossFilter->SetPixelFormat( Pixel::RGBA8888 );
410 embossFilter->SetSize( mTargetSize );
412 BlurTwoPassFilter* blurFilter = static_cast< BlurTwoPassFilter* >( mFilters[2] );
413 blurFilter->SetInputImage( mImagePostFilter );
414 blurFilter->SetOutputImage( mImagePostFilter );
415 blurFilter->SetRootActor( mChildrenRoot );
416 blurFilter->SetBackgroundColor( Vector4( 0.5f, 0.5f, 0.5f, 0.0 ) );
417 blurFilter->SetPixelFormat( Pixel::RGBA8888 );
418 blurFilter->SetSize( mTargetSize );
419 blurFilter->CreateKernel( BLUR_KERNEL0, sizeof(BLUR_KERNEL0)/sizeof(BLUR_KERNEL0[0]) );
429 void EffectsView::AllocateResources()
431 if(mTargetSize != mLastSize)
433 mLastSize = mTargetSize;
436 Actor self( Self() );
438 mImageForChildren = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Dali::Image::UNUSED );
439 InitializeVisual( self, mVisualForChildren, mImageForChildren );
440 mVisualForChildren.SetDepthIndex( DepthIndex::CONTENT+1 );
442 mImagePostFilter = FrameBufferImage::New( mTargetSize.width, mTargetSize.height, mPixelFormat, Dali::Image::UNUSED );
443 TextureSet textureSet = TextureSet::New();
444 TextureSetImage( textureSet, 0u, mImagePostFilter );
445 self.GetRendererAt( 0 ).SetTextures( textureSet );
446 mVisualPostFilter.SetDepthIndex( DepthIndex::CONTENT );
452 void EffectsView::SetupCameras()
454 if( !mCameraForChildren )
456 // Create a camera for the children render, corresponding to its render target size
457 mCameraForChildren = CameraActor::New(mTargetSize);
458 mCameraForChildren.SetParentOrigin(ParentOrigin::CENTER);
459 mCameraForChildren.SetInvertYAxis( true );
460 Self().Add( mCameraForChildren );
464 // place the camera for the children render, corresponding to its render target size
465 const float cameraPosScale( 0.5f / tanf(ARBITRARY_FIELD_OF_VIEW * 0.5f) );
466 mCameraForChildren.SetFieldOfView(ARBITRARY_FIELD_OF_VIEW);
467 mCameraForChildren.SetNearClippingPlane(1.0f);
468 mCameraForChildren.SetAspectRatio(mTargetSize.width / mTargetSize.height);
469 mCameraForChildren.SetType(Dali::Camera::FREE_LOOK); // camera orientation based solely on actor
470 mCameraForChildren.SetPosition(0.0f, 0.0f, mTargetSize.height * cameraPosScale);
471 mCameraForChildren.SetZ( mTargetSize.height * cameraPosScale );
475 void EffectsView::CreateRenderTasks()
477 if( mTargetSize == Vector2::ZERO )
481 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
483 // create render task to render our child actors to offscreen buffer
484 mRenderTaskForChildren = taskList.CreateTask();
485 mRenderTaskForChildren.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
486 mRenderTaskForChildren.SetSourceActor( mChildrenRoot );
487 mRenderTaskForChildren.SetExclusive(true);
488 mRenderTaskForChildren.SetInputEnabled( false );
489 mRenderTaskForChildren.SetClearColor( mBackgroundColor );
490 mRenderTaskForChildren.SetClearEnabled( true );
491 mRenderTaskForChildren.SetTargetFrameBuffer( mImageForChildren );
492 mRenderTaskForChildren.SetCameraActor(mCameraForChildren); // use camera that covers render target exactly
494 // Enable image filters
495 const size_t numFilters( mFilters.Size() );
496 for( size_t i = 0; i < numFilters; ++i )
498 mFilters[i]->Enable();
502 void EffectsView::RemoveRenderTasks()
504 if( mTargetSize == Vector2::ZERO )
509 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
511 taskList.RemoveTask(mRenderTaskForChildren);
513 const size_t numFilters( mFilters.Size() );
514 for( size_t i = 0; i < numFilters; ++i )
516 mFilters[i]->Disable();
520 void EffectsView::RefreshRenderTasks()
522 RenderTaskList taskList = Stage::GetCurrent().GetRenderTaskList();
524 if( mRenderTaskForChildren )
526 mRenderTaskForChildren.SetRefreshRate( mRefreshOnDemand ? RenderTask::REFRESH_ONCE : RenderTask::REFRESH_ALWAYS );
529 const size_t numFilters( mFilters.Size() );
530 for( size_t i = 0; i < numFilters; ++i )
532 mFilters[i]->Refresh();
536 void EffectsView::RemoveFilters()
538 const size_t numFilters( mFilters.Size() );
539 for( size_t i = 0; i < numFilters; ++i )
546 void EffectsView::SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
548 Toolkit::EffectsView effectsView = Toolkit::EffectsView::DownCast( Dali::BaseHandle( object ) );
554 case Toolkit::EffectsView::Property::EFFECT_SIZE:
557 if( value.Get( effectSize ) )
559 GetImpl( effectsView ).SetEffectSize( effectSize );
571 Property::Value EffectsView::GetProperty( BaseObject* object, Property::Index propertyIndex )
573 Property::Value value;
575 Toolkit::EffectsView imageview = Toolkit::EffectsView::DownCast( Dali::BaseHandle( object ) );
579 EffectsView& impl = GetImpl( imageview );
580 switch ( propertyIndex )
582 case Toolkit::EffectsView::Property::EFFECT_SIZE:
584 value = impl.GetEffectSize();
597 } // namespace Internal
599 } // namespace Toolkit