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 "svg-renderer.h"
22 #include <dali/public-api/images/buffer-image.h>
23 #include <dali/public-api/common/stage.h>
24 #include <dali/public-api/math/vector4.h>
25 #include <dali/devel-api/images/atlas.h>
26 #include <dali/integration-api/debug.h>
29 #include "nanosvg/nanosvg.h"
30 #include "svg-rasterize-thread.h"
31 #include <dali-toolkit/internal/controls/renderers/image/image-renderer.h>
32 #include <dali-toolkit/internal/controls/renderers/renderer-factory-cache.h>
33 #include <dali-toolkit/internal/controls/renderers/control-renderer-data-impl.h>
38 const char * const RENDERER_TYPE("rendererType");
39 const char * const RENDERER_TYPE_VALUE("svg");
40 const char * const IMAGE_URL_NAME("imageUrl");
41 const char * const UNITS("px");
43 const std::string TEXTURE_UNIFORM_NAME = "sTexture";
44 const std::string ATLAS_RECT_UNIFORM_NAME = "uAtlasRect";
46 const Dali::Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
58 SvgRenderer::SvgRenderer( RendererFactoryCache& factoryCache, ImageAtlasManager& atlasManager )
59 : ControlRenderer( factoryCache ),
60 mAtlasRect( FULL_TEXTURE_RECT ),
61 mAtlasManager( atlasManager ),
64 // the rasterized image is with pre-multiplied alpha format
65 mImpl->mFlags |= Impl::IS_PREMULTIPLIED_ALPHA;
68 SvgRenderer::~SvgRenderer()
72 nsvgDelete( mParsedImage );
76 bool SvgRenderer::IsSvgUrl( const std::string& url )
78 return url.substr( url.find_last_of(".") + 1 ) == "svg";
81 void SvgRenderer::DoInitialize( Actor& actor, const Property::Map& propertyMap )
83 Property::Value* imageURLValue = propertyMap.Find( IMAGE_URL_NAME );
87 if( imageURLValue->Get( imageUrl ) )
93 DALI_LOG_ERROR( "The property '%s' is not a string\n", IMAGE_URL_NAME );
98 void SvgRenderer::DoSetOnStage( Actor& actor )
100 Shader shader = ImageRenderer::GetImageShader( mFactoryCache );
101 Geometry geometry = mFactoryCache.GetGeometry( RendererFactoryCache::QUAD_GEOMETRY );
104 geometry = mFactoryCache.CreateQuadGeometry();
105 mFactoryCache.SaveGeometry( RendererFactoryCache::QUAD_GEOMETRY, geometry );
107 Material material = Material::New( shader );
108 mImpl->mRenderer = Renderer::New( geometry, material );
110 if( mImpl->mSize != Vector2::ZERO && mParsedImage )
112 AddRasterizationTask( mImpl->mSize );
116 void SvgRenderer::DoSetOffStage( Actor& actor )
118 mFactoryCache.GetSVGRasterizationThread()->RemoveTask( this );
120 actor.RemoveRenderer( mImpl->mRenderer );
121 mImpl->mRenderer.Reset();
124 void SvgRenderer::GetNaturalSize( Vector2& naturalSize ) const
128 naturalSize.x = mParsedImage->width;
129 naturalSize.y = mParsedImage->height;
133 naturalSize = Vector2::ZERO;
137 void SvgRenderer::SetSize( const Vector2& size )
139 if(mImpl->mSize != size && mParsedImage && GetIsOnStage() )
141 AddRasterizationTask( size );
146 void SvgRenderer::DoCreatePropertyMap( Property::Map& map ) const
149 map.Insert( RENDERER_TYPE, RENDERER_TYPE_VALUE );
150 if( !mImageUrl.empty() )
152 map.Insert( IMAGE_URL_NAME, mImageUrl );
156 void SvgRenderer::SetImage( const std::string& imageUrl, ImageDimensions size )
158 if( mImageUrl != imageUrl )
160 mImageUrl = imageUrl;
162 NSVGimage* parsedImageOld = mParsedImage;
164 Vector2 dpi = Stage::GetCurrent().GetDpi();
165 float meanDpi = (dpi.height + dpi.width) * 0.5f;
166 mParsedImage = nsvgParseFromFile(mImageUrl.c_str(), UNITS, meanDpi);
168 if( size.GetWidth() != 0u && size.GetHeight() != 0u)
170 mImpl->mSize.x = size.GetWidth();
171 mImpl->mSize.y = size.GetHeight();
174 if( mImpl->mSize != Vector2::ZERO && GetIsOnStage() )
176 AddRasterizationTask( mImpl->mSize );
179 mFactoryCache.GetSVGRasterizationThread()->DeleteImage( parsedImageOld );
183 void SvgRenderer::AddRasterizationTask( const Vector2& size )
185 if( mImpl->mRenderer && mParsedImage )
187 unsigned int width = static_cast<unsigned int>(size.width);
188 unsigned int height = static_cast<unsigned int>( size.height );
189 BufferImage image = BufferImage::New( width, height, Pixel::RGBA8888);
191 RasterizingTaskPtr newTask = new RasterizingTask( this, mParsedImage, width, height );
192 mFactoryCache.GetSVGRasterizationThread()->AddTask( newTask );
196 void SvgRenderer::ApplyRasterizedImage( PixelDataPtr rasterizedPixelData )
200 Material currentMaterial = mImpl->mRenderer.GetMaterial();
201 if( mAtlasRect != FULL_TEXTURE_RECT )
203 mAtlasManager.Remove( currentMaterial, mAtlasRect );
207 Material material = mAtlasManager.Add(atlasRect, rasterizedPixelData );
208 if( material ) // atlasing
210 if( material != currentMaterial )
212 mImpl->mRenderer.SetMaterial( material );
214 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, atlasRect );
215 mAtlasRect = atlasRect;
219 Atlas texture = Atlas::New( rasterizedPixelData->GetWidth(), rasterizedPixelData->GetHeight() );
220 texture.Upload( rasterizedPixelData, 0, 0 );
222 if( mAtlasRect == FULL_TEXTURE_RECT )
224 material = currentMaterial;
228 material = Material::New( ImageRenderer::GetImageShader( mFactoryCache ) );
229 mImpl->mRenderer.SetMaterial( material );
231 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
232 mAtlasRect = FULL_TEXTURE_RECT;
237 int index = material.GetTextureIndex( TEXTURE_UNIFORM_NAME );
240 material.SetTextureImage( index, texture );
244 material.AddTexture( texture, TEXTURE_UNIFORM_NAME );
252 } // namespace Internal
254 } // namespace Toolkit