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 "image-visual.h"
22 #include <cstring> // for strncasecmp
23 #include <dali/public-api/images/resource-image.h>
24 #include <dali/public-api/images/native-image.h>
25 #include <dali/devel-api/images/atlas.h>
26 #include <dali/devel-api/images/texture-set-image.h>
27 #include <dali/devel-api/adaptor-framework/bitmap-loader.h>
28 #include <dali/devel-api/scripting/enum-helper.h>
29 #include <dali/devel-api/scripting/scripting.h>
30 #include <dali/integration-api/debug.h>
33 #include <dali-toolkit/public-api/visuals/image-visual-properties.h>
34 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
35 #include <dali-toolkit/internal/visuals/visual-factory-impl.h>
36 #include <dali-toolkit/internal/visuals/visual-factory-cache.h>
37 #include <dali-toolkit/internal/visuals/visual-base-impl.h>
38 #include <dali-toolkit/internal/visuals/image-atlas-manager.h>
39 #include <dali-toolkit/internal/visuals/visual-base-data-impl.h>
52 const char HTTP_URL[] = "http://";
53 const char HTTPS_URL[] = "https://";
56 const char * const IMAGE_FITTING_MODE( "fittingMode" );
57 const char * const IMAGE_SAMPLING_MODE( "samplingMode" );
58 const char * const IMAGE_DESIRED_WIDTH( "desiredWidth" );
59 const char * const IMAGE_DESIRED_HEIGHT( "desiredHeight" );
60 const char * const SYNCHRONOUS_LOADING( "synchronousLoading" );
61 const char * const BATCHING_ENABLED( "batchingEnabled" );
64 DALI_ENUM_TO_STRING_TABLE_BEGIN( FITTING_MODE )
65 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::FittingMode, SHRINK_TO_FIT )
66 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::FittingMode, SCALE_TO_FILL )
67 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::FittingMode, FIT_WIDTH )
68 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::FittingMode, FIT_HEIGHT )
69 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::FittingMode, DEFAULT )
70 DALI_ENUM_TO_STRING_TABLE_END( FITTING_MODE )
73 DALI_ENUM_TO_STRING_TABLE_BEGIN( SAMPLING_MODE )
74 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, BOX )
75 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, NEAREST )
76 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, LINEAR )
77 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, BOX_THEN_NEAREST )
78 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, BOX_THEN_LINEAR )
79 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, NO_FILTER )
80 DALI_ENUM_TO_STRING_WITH_SCOPE( Dali::SamplingMode, DONT_CARE )
81 DALI_ENUM_TO_STRING_TABLE_END( SAMPLING_MODE )
83 const std::string PIXEL_AREA_UNIFORM_NAME = "pixelArea";
85 const Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
87 const char* DEFAULT_SAMPLER_TYPENAME = "sampler2D";
89 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
90 attribute mediump vec2 aPosition;\n
91 uniform mediump mat4 uMvpMatrix;\n
92 uniform mediump vec3 uSize;\n
93 uniform mediump vec4 uAtlasRect;\n
94 uniform mediump vec4 pixelArea;
95 varying mediump vec2 vTexCoord;\n
99 mediump vec4 vertexPosition = vec4(aPosition, 0.0, 1.0);\n
100 vertexPosition.xyz *= uSize;\n
101 vertexPosition = uMvpMatrix * vertexPosition;\n
103 vTexCoord = mix( uAtlasRect.xy, uAtlasRect.zw, pixelArea.xy+pixelArea.zw*(aPosition + vec2(0.5) ) );\n
104 gl_Position = vertexPosition;\n
108 const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
109 varying mediump vec2 vTexCoord;\n
110 uniform sampler2D sTexture;\n
111 uniform lowp vec4 uColor;\n
115 gl_FragColor = texture2D( sTexture, vTexCoord ) * uColor;\n
119 Geometry CreateGeometry( VisualFactoryCache& factoryCache, ImageDimensions gridSize )
123 if( gridSize == ImageDimensions( 1, 1 ) )
125 geometry = factoryCache.GetGeometry( VisualFactoryCache::QUAD_GEOMETRY );
128 geometry = VisualFactoryCache::CreateQuadGeometry();
129 factoryCache.SaveGeometry( VisualFactoryCache::QUAD_GEOMETRY, geometry );
134 geometry = VisualFactoryCache::CreateGridGeometry( gridSize );
140 } //unnamed namespace
142 ImageVisual::ImageVisual( VisualFactoryCache& factoryCache, ImageAtlasManager& atlasManager )
143 : Visual::Base( factoryCache ),
144 mAtlasManager( atlasManager ),
146 mFittingMode( FittingMode::DEFAULT ),
147 mSamplingMode( SamplingMode::DEFAULT ),
148 mNativeFragmentShaderCode( ),
149 mNativeImageFlag( false )
153 ImageVisual::~ImageVisual()
157 void ImageVisual::DoInitialize( Actor& actor, const Property::Map& propertyMap )
159 std::string oldImageUrl = mImageUrl;
161 Property::Value* imageURLValue = propertyMap.Find( Toolkit::ImageVisual::Property::URL, IMAGE_URL_NAME );
164 imageURLValue->Get( mImageUrl );
165 if( !mImageUrl.empty() )
170 Property::Value* fittingValue = propertyMap.Find( Toolkit::ImageVisual::Property::FITTING_MODE, IMAGE_FITTING_MODE );
173 Scripting::GetEnumerationProperty( *fittingValue, FITTING_MODE_TABLE, FITTING_MODE_TABLE_COUNT, mFittingMode );
176 Property::Value* samplingValue = propertyMap.Find( Toolkit::ImageVisual::Property::SAMPLING_MODE, IMAGE_SAMPLING_MODE );
179 Scripting::GetEnumerationProperty( *samplingValue, SAMPLING_MODE_TABLE, SAMPLING_MODE_TABLE_COUNT, mSamplingMode );
182 int desiredWidth = 0;
183 Property::Value* desiredWidthValue = propertyMap.Find( Toolkit::ImageVisual::Property::DESIRED_WIDTH, IMAGE_DESIRED_WIDTH );
184 if( desiredWidthValue )
186 desiredWidthValue->Get( desiredWidth );
189 int desiredHeight = 0;
190 Property::Value* desiredHeightValue = propertyMap.Find( Toolkit::ImageVisual::Property::DESIRED_HEIGHT, IMAGE_DESIRED_HEIGHT );
191 if( desiredHeightValue )
193 desiredHeightValue->Get( desiredHeight );
196 mDesiredSize = ImageDimensions( desiredWidth, desiredHeight );
199 Property::Value* syncLoading = propertyMap.Find( Toolkit::ImageVisual::Property::SYNCHRONOUS_LOADING, SYNCHRONOUS_LOADING );
203 syncLoading->Get( sync );
206 mImpl->mFlags |= Impl::IS_SYNCHRONOUS_RESOURCE_LOADING;
210 mImpl->mFlags &= ~Impl::IS_SYNCHRONOUS_RESOURCE_LOADING;
214 // if sync loading is required, the loading should start immediately when new image url is set or the actor is off stage
215 // ( for on-stage actor with image url unchanged, resource loading is already finished)
216 if( ( !mImpl->mRenderer || imageURLValue) && IsSynchronousResourceLoading() )
218 DoSynchronousResourceLoading();
221 // remove old renderer if exit
222 if( mImpl->mRenderer )
224 if( actor ) //remove old renderer from actor
226 actor.RemoveRenderer( mImpl->mRenderer );
228 if( !oldImageUrl.empty() ) //clean old renderer from cache
230 CleanCache( oldImageUrl );
234 NativeImage nativeImage = NativeImage::DownCast( mImage );
238 SetNativeFragmentShaderCode( nativeImage );
241 // if actor is on stage, create new renderer and apply to actor
242 if( actor && actor.OnStage() )
248 void ImageVisual::SetSize( const Vector2& size )
250 Visual::Base::SetSize( size );
253 void ImageVisual::GetNaturalSize( Vector2& naturalSize ) const
257 naturalSize.x = mImage.GetWidth();
258 naturalSize.y = mImage.GetHeight();
261 else if( mDesiredSize.GetWidth()>0 && mDesiredSize.GetHeight()>0)
263 naturalSize.x = mDesiredSize.GetWidth();
264 naturalSize.y = mDesiredSize.GetHeight();
267 else if( !mImageUrl.empty() )
269 ImageDimensions dimentions = ResourceImage::GetImageSize( mImageUrl );
270 naturalSize.x = dimentions.GetWidth();
271 naturalSize.y = dimentions.GetHeight();
275 naturalSize = Vector2::ZERO;
278 void ImageVisual::SetClipRect( const Rect<int>& clipRect )
280 Visual::Base::SetClipRect( clipRect );
283 void ImageVisual::SetOffset( const Vector2& offset )
287 Renderer ImageVisual::CreateRenderer() const
292 // If mImage is nativeImage with custom sampler or prefix, mNativeFragmentShaderCode will be applied.
293 // Renderer can't be shared between NativeImage and other image types.
294 if( !mNativeFragmentShaderCode.empty() )
296 return CreateNativeImageRenderer();
299 if( !mImpl->mCustomShader )
301 geometry = CreateGeometry( mFactoryCache, ImageDimensions( 1, 1 ) );
303 shader = GetImageShader(mFactoryCache);
307 geometry = CreateGeometry( mFactoryCache, mImpl->mCustomShader->mGridSize );
308 if( mImpl->mCustomShader->mVertexShader.empty() && mImpl->mCustomShader->mFragmentShader.empty() )
310 shader = GetImageShader(mFactoryCache);
314 shader = Shader::New( mImpl->mCustomShader->mVertexShader.empty() ? VERTEX_SHADER : mImpl->mCustomShader->mVertexShader,
315 mImpl->mCustomShader->mFragmentShader.empty() ? FRAGMENT_SHADER : mImpl->mCustomShader->mFragmentShader,
316 mImpl->mCustomShader->mHints );
317 if( mImpl->mCustomShader->mVertexShader.empty() )
319 shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
320 shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
325 Renderer renderer = Renderer::New( geometry, shader );
330 Renderer ImageVisual::CreateNativeImageRenderer() const
335 if( !mImpl->mCustomShader )
337 geometry = CreateGeometry( mFactoryCache, ImageDimensions( 1, 1 ) );
339 shader = Shader::New( VERTEX_SHADER, mNativeFragmentShaderCode );
340 shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
341 shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
345 geometry = CreateGeometry( mFactoryCache, mImpl->mCustomShader->mGridSize );
346 shader = Shader::New( mImpl->mCustomShader->mVertexShader.empty() ? VERTEX_SHADER : mImpl->mCustomShader->mVertexShader,
347 mNativeFragmentShaderCode,
348 mImpl->mCustomShader->mHints );
349 if( mImpl->mCustomShader->mVertexShader.empty() )
351 shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
352 shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
356 TextureSet textureSet = TextureSet::New();
357 Renderer renderer = Renderer::New( geometry, shader );
358 renderer.SetTextures( textureSet );
364 bool ImageVisual::IsSynchronousResourceLoading() const
366 return mImpl->mFlags & Impl::IS_SYNCHRONOUS_RESOURCE_LOADING;
369 void ImageVisual::DoSynchronousResourceLoading()
371 if( !mImageUrl.empty() )
373 BitmapLoader loader = BitmapLoader::New( mImageUrl, mDesiredSize, mFittingMode, mSamplingMode );
375 mPixels = loader.GetPixelData();
379 Image ImageVisual::LoadImage( const std::string& url, bool synchronousLoading )
381 if( synchronousLoading )
386 return VisualFactory::GetBrokenVisualImage();
388 Atlas image = Atlas::New( mPixels.GetWidth(), mPixels.GetHeight(), mPixels.GetPixelFormat() );
389 image.Upload( mPixels, 0, 0 );
394 ResourceImage resourceImage = Dali::ResourceImage::New( url, mDesiredSize, mFittingMode, mSamplingMode );
395 resourceImage.LoadingFinishedSignal().Connect( this, &ImageVisual::OnImageLoaded );
396 return resourceImage;
400 TextureSet ImageVisual::CreateTextureSet( Vector4& textureRect, const std::string& url, bool synchronousLoading )
402 TextureSet textureSet;
403 textureRect = FULL_TEXTURE_RECT;
404 if( synchronousLoading )
409 textureSet = TextureSet::New();
410 TextureSetImage( textureSet, 0u, VisualFactory::GetBrokenVisualImage() );
414 textureSet = mAtlasManager.Add(textureRect, mPixels );
415 if( !textureSet ) // big image, no atlasing
417 Atlas image = Atlas::New( mPixels.GetWidth(), mPixels.GetHeight(), mPixels.GetPixelFormat() );
418 image.Upload( mPixels, 0, 0 );
419 textureSet = TextureSet::New();
420 TextureSetImage( textureSet, 0u, image );
426 textureSet = mAtlasManager.Add(textureRect, url, mDesiredSize, mFittingMode, mSamplingMode );
427 if( !textureSet ) // big image, no atlasing
429 ResourceImage resourceImage = Dali::ResourceImage::New( url, mDesiredSize, mFittingMode, mSamplingMode );
430 resourceImage.LoadingFinishedSignal().Connect( this, &ImageVisual::OnImageLoaded );
431 textureSet = TextureSet::New();
432 TextureSetImage( textureSet, 0u, resourceImage );
439 void ImageVisual::InitializeRenderer( const std::string& imageUrl )
441 if( imageUrl.empty() )
446 mImageUrl = imageUrl;
447 mImpl->mRenderer.Reset();
449 if( !mImpl->mCustomShader &&
450 ( strncasecmp( imageUrl.c_str(), HTTP_URL, sizeof(HTTP_URL) -1 ) != 0 ) && // ignore remote images
451 ( strncasecmp( imageUrl.c_str(), HTTPS_URL, sizeof(HTTPS_URL) -1 ) != 0 ) )
453 mImpl->mRenderer = mFactoryCache.GetRenderer( imageUrl );
454 if( !mImpl->mRenderer )
457 TextureSet textureSet = CreateTextureSet(atlasRect, imageUrl, IsSynchronousResourceLoading() );
458 Geometry geometry = CreateGeometry( mFactoryCache, ImageDimensions( 1, 1 ) );
459 Shader shader( GetImageShader(mFactoryCache) );
460 mImpl->mRenderer = Renderer::New( geometry, shader );
461 mImpl->mRenderer.SetTextures( textureSet );
462 if( atlasRect != FULL_TEXTURE_RECT )
464 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, atlasRect );
466 mFactoryCache.SaveRenderer( imageUrl, mImpl->mRenderer );
469 mImpl->mFlags |= Impl::IS_FROM_CACHE;
473 // for custom shader or remote image, renderer is not cached and atlas is not applied
475 mImpl->mFlags &= ~Impl::IS_FROM_CACHE;
476 mImpl->mRenderer = CreateRenderer();
477 Image image = LoadImage( imageUrl, IsSynchronousResourceLoading() );
478 ApplyImageToSampler( image );
482 void ImageVisual::InitializeRenderer( const Image& image )
484 mImpl->mFlags &= ~Impl::IS_FROM_CACHE;
486 mImpl->mRenderer = CreateRenderer();
490 ApplyImageToSampler( image );
494 void ImageVisual::DoSetOnStage( Actor& actor )
496 if( !mImageUrl.empty() )
498 InitializeRenderer( mImageUrl );
502 InitializeRenderer( mImage );
506 void ImageVisual::DoSetOffStage( Actor& actor )
508 //If we own the image then make sure we release it when we go off stage
509 if( !mImageUrl.empty() )
511 actor.RemoveRenderer( mImpl->mRenderer );
512 CleanCache(mImageUrl);
517 actor.RemoveRenderer( mImpl->mRenderer );
518 mImpl->mRenderer.Reset();
522 void ImageVisual::DoCreatePropertyMap( Property::Map& map ) const
525 map.Insert( Toolkit::Visual::Property::TYPE, Toolkit::Visual::IMAGE );
527 bool sync = IsSynchronousResourceLoading();
528 map.Insert( SYNCHRONOUS_LOADING, sync );
529 if( !mImageUrl.empty() )
531 map.Insert( Toolkit::ImageVisual::Property::URL, mImageUrl );
532 map.Insert( Toolkit::ImageVisual::Property::DESIRED_WIDTH, mDesiredSize.GetWidth() );
533 map.Insert( Toolkit::ImageVisual::Property::DESIRED_HEIGHT, mDesiredSize.GetHeight() );
537 map.Insert( Toolkit::ImageVisual::Property::DESIRED_WIDTH, static_cast<int>(mImage.GetWidth()) );
538 map.Insert( Toolkit::ImageVisual::Property::DESIRED_HEIGHT, static_cast<int>(mImage.GetHeight()) );
540 ResourceImage resourceImage = ResourceImage::DownCast(mImage);
543 map.Insert( Toolkit::ImageVisual::Property::URL, resourceImage.GetUrl() );
547 map.Insert( Toolkit::ImageVisual::Property::FITTING_MODE, mFittingMode );
548 map.Insert( Toolkit::ImageVisual::Property::SAMPLING_MODE, mSamplingMode );
551 Shader ImageVisual::GetImageShader( VisualFactoryCache& factoryCache )
553 Shader shader = factoryCache.GetShader( VisualFactoryCache::IMAGE_SHADER );
556 shader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
557 factoryCache.SaveShader( VisualFactoryCache::IMAGE_SHADER, shader );
558 shader.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
559 shader.RegisterProperty( PIXEL_AREA_UNIFORM_NAME, FULL_TEXTURE_RECT );
564 void ImageVisual::SetImage( Actor& actor, const std::string& imageUrl, ImageDimensions size, Dali::FittingMode::Type fittingMode, Dali::SamplingMode::Type samplingMode )
566 if( mImageUrl != imageUrl )
568 std::string oldImageUrl = mImageUrl;
569 mImageUrl = imageUrl;
571 mFittingMode = fittingMode;
572 mSamplingMode = samplingMode;
575 if( IsSynchronousResourceLoading() )
577 DoSynchronousResourceLoading();
580 if( mImpl->mRenderer )
582 if( GetIsFromCache() ) // if renderer is from cache, remove the old one
584 //remove old renderer
587 actor.RemoveRenderer( mImpl->mRenderer );
591 if( !oldImageUrl.empty() )
593 CleanCache(oldImageUrl);
596 if( actor && actor.OnStage() ) // if actor on stage, create a new renderer and apply to actor
601 else // if renderer is not from cache, reuse the same renderer and only change the texture
603 Image image = LoadImage( imageUrl, IsSynchronousResourceLoading() );
604 ApplyImageToSampler( image );
610 void ImageVisual::SetImage( Actor& actor, const Image& image )
612 if( mImage != image )
614 NativeImage newNativeImage = NativeImage::DownCast( image );
615 bool newRendererFlag = true;
617 if( newNativeImage && !mNativeImageFlag )
619 SetNativeFragmentShaderCode( newNativeImage );
622 if( ( newNativeImage && mNativeImageFlag ) || ( !newNativeImage && !mNativeImageFlag ) )
624 newRendererFlag = false;
629 mNativeImageFlag = true;
633 mNativeFragmentShaderCode.clear();
634 mNativeImageFlag = false;
639 if( mImpl->mRenderer )
641 // if renderer is from cache, remove the old one, and create new renderer
642 if( GetIsFromCache() )
644 //remove old renderer
647 actor.RemoveRenderer( mImpl->mRenderer );
651 if( !mImageUrl.empty() )
653 CleanCache(mImageUrl);
657 if( actor && actor.OnStage() ) // if actor on stage, create a new renderer and apply to actor
662 // if input image is nativeImage and mImage is regular image or the reverse, remove the old one, and create new renderer
663 else if( newRendererFlag )
665 //remove old renderer
668 actor.RemoveRenderer( mImpl->mRenderer );
671 if( actor && actor.OnStage() ) // if actor on stage, create a new renderer and apply to actor
676 else // if renderer is not from cache, reuse the same renderer and only change the texture
678 ApplyImageToSampler( image );
683 mDesiredSize = ImageDimensions();
684 mFittingMode = FittingMode::DEFAULT;
685 mSamplingMode = SamplingMode::DEFAULT;
689 void ImageVisual::ApplyImageToSampler( const Image& image )
693 TextureSet textureSet = mImpl->mRenderer.GetTextures();
696 textureSet = TextureSet::New();
697 mImpl->mRenderer.SetTextures( textureSet );
699 TextureSetImage( textureSet, 0u, image );
703 void ImageVisual::OnImageLoaded( ResourceImage image )
705 if( image.GetLoadingState() == Dali::ResourceLoadingFailed )
707 Image brokenImage = VisualFactory::GetBrokenVisualImage();
708 if( mImpl->mRenderer )
710 ApplyImageToSampler( brokenImage );
715 void ImageVisual::CleanCache(const std::string& url)
717 TextureSet textureSet = mImpl->mRenderer.GetTextures();
719 Vector4 atlasRect( 0.f, 0.f, 1.f, 1.f );
720 Property::Index index = mImpl->mRenderer.GetPropertyIndex( ATLAS_RECT_UNIFORM_NAME );
721 if( index != Property::INVALID_INDEX )
723 Property::Value atlasRectValue = mImpl->mRenderer.GetProperty( index );
724 atlasRectValue.Get( atlasRect );
727 mImpl->mRenderer.Reset();
728 if( mFactoryCache.CleanRendererCache( url ) && index != Property::INVALID_INDEX )
730 mAtlasManager.Remove( textureSet, atlasRect );
734 void ImageVisual::SetNativeFragmentShaderCode( Dali::NativeImage& nativeImage )
736 const char* fragmentPreFix = nativeImage.GetCustomFragmentPreFix();
737 const char* customSamplerTypename = nativeImage.GetCustomSamplerTypename();
741 mNativeFragmentShaderCode = fragmentPreFix;
742 mNativeFragmentShaderCode += "\n";
745 if( mImpl->mCustomShader && !mImpl->mCustomShader->mFragmentShader.empty() )
747 mNativeFragmentShaderCode += mImpl->mCustomShader->mFragmentShader;
751 mNativeFragmentShaderCode += FRAGMENT_SHADER;
754 if( customSamplerTypename )
756 mNativeFragmentShaderCode.replace( mNativeFragmentShaderCode.find( DEFAULT_SAMPLER_TYPENAME ), strlen( DEFAULT_SAMPLER_TYPENAME ), customSamplerTypename );
760 } // namespace Internal
762 } // namespace Toolkit