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/renderer-string-constants.h>
34 #include <dali-toolkit/internal/controls/renderers/control-renderer-data-impl.h>
39 const char * const UNITS("px");
41 const Dali::Vector4 FULL_TEXTURE_RECT(0.f, 0.f, 1.f, 1.f);
53 SvgRenderer::SvgRenderer( RendererFactoryCache& factoryCache, ImageAtlasManager& atlasManager )
54 : ControlRenderer( factoryCache ),
55 mAtlasRect( FULL_TEXTURE_RECT ),
56 mAtlasManager( atlasManager ),
59 // the rasterized image is with pre-multiplied alpha format
60 mImpl->mFlags |= Impl::IS_PREMULTIPLIED_ALPHA;
63 SvgRenderer::~SvgRenderer()
67 nsvgDelete( mParsedImage );
71 bool SvgRenderer::IsSvgUrl( const std::string& url )
73 return url.substr( url.find_last_of(".") + 1 ) == "svg";
76 void SvgRenderer::DoInitialize( Actor& actor, const Property::Map& propertyMap )
78 Property::Value* imageURLValue = propertyMap.Find( IMAGE_URL_NAME );
82 if( imageURLValue->Get( imageUrl ) )
88 DALI_LOG_ERROR( "The property '%s' is not a string\n", IMAGE_URL_NAME );
93 void SvgRenderer::DoSetOnStage( Actor& actor )
95 Shader shader = ImageRenderer::GetImageShader( mFactoryCache );
96 Geometry geometry = mFactoryCache.GetGeometry( RendererFactoryCache::QUAD_GEOMETRY );
99 geometry = mFactoryCache.CreateQuadGeometry();
100 mFactoryCache.SaveGeometry( RendererFactoryCache::QUAD_GEOMETRY, geometry );
102 TextureSet textureSet = TextureSet::New();
103 mImpl->mRenderer = Renderer::New( geometry, shader );
104 mImpl->mRenderer.SetTextures( textureSet );
106 if( mImpl->mSize != Vector2::ZERO && mParsedImage )
108 AddRasterizationTask( mImpl->mSize );
112 void SvgRenderer::DoSetOffStage( Actor& actor )
114 mFactoryCache.GetSVGRasterizationThread()->RemoveTask( this );
116 actor.RemoveRenderer( mImpl->mRenderer );
117 mImpl->mRenderer.Reset();
120 void SvgRenderer::GetNaturalSize( Vector2& naturalSize ) const
124 naturalSize.x = mParsedImage->width;
125 naturalSize.y = mParsedImage->height;
129 naturalSize = Vector2::ZERO;
133 void SvgRenderer::SetSize( const Vector2& size )
135 if(mImpl->mSize != size && mParsedImage && GetIsOnStage() )
137 AddRasterizationTask( size );
142 void SvgRenderer::DoCreatePropertyMap( Property::Map& map ) const
145 map.Insert( RENDERER_TYPE, IMAGE_RENDERER );
146 if( !mImageUrl.empty() )
148 map.Insert( IMAGE_URL_NAME, mImageUrl );
152 void SvgRenderer::SetImage( const std::string& imageUrl, ImageDimensions size )
154 if( mImageUrl != imageUrl )
156 mImageUrl = imageUrl;
158 NSVGimage* parsedImageOld = mParsedImage;
160 Vector2 dpi = Stage::GetCurrent().GetDpi();
161 float meanDpi = (dpi.height + dpi.width) * 0.5f;
162 mParsedImage = nsvgParseFromFile(mImageUrl.c_str(), UNITS, meanDpi);
164 if( size.GetWidth() != 0u && size.GetHeight() != 0u)
166 mImpl->mSize.x = size.GetWidth();
167 mImpl->mSize.y = size.GetHeight();
170 if( mImpl->mSize != Vector2::ZERO && GetIsOnStage() )
172 AddRasterizationTask( mImpl->mSize );
175 mFactoryCache.GetSVGRasterizationThread()->DeleteImage( parsedImageOld );
179 void SvgRenderer::AddRasterizationTask( const Vector2& size )
181 if( mImpl->mRenderer && mParsedImage )
183 unsigned int width = static_cast<unsigned int>(size.width);
184 unsigned int height = static_cast<unsigned int>( size.height );
185 BufferImage image = BufferImage::New( width, height, Pixel::RGBA8888);
187 RasterizingTaskPtr newTask = new RasterizingTask( this, mParsedImage, width, height );
188 mFactoryCache.GetSVGRasterizationThread()->AddTask( newTask );
192 void SvgRenderer::ApplyRasterizedImage( PixelDataPtr rasterizedPixelData )
196 TextureSet currentTextureSet = mImpl->mRenderer.GetTextures();
197 if( mAtlasRect != FULL_TEXTURE_RECT )
199 mAtlasManager.Remove( currentTextureSet, mAtlasRect );
203 TextureSet textureSet = mAtlasManager.Add(atlasRect, rasterizedPixelData );
204 if( textureSet ) // atlasing
206 if( textureSet != currentTextureSet )
208 mImpl->mRenderer.SetTextures( textureSet );
210 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, atlasRect );
211 mAtlasRect = atlasRect;
215 Atlas texture = Atlas::New( rasterizedPixelData->GetWidth(), rasterizedPixelData->GetHeight() );
216 texture.Upload( rasterizedPixelData, 0, 0 );
218 if( mAtlasRect == FULL_TEXTURE_RECT )
220 textureSet = currentTextureSet;
224 textureSet = TextureSet::New();
225 mImpl->mRenderer.SetTextures( textureSet );
227 mImpl->mRenderer.RegisterProperty( ATLAS_RECT_UNIFORM_NAME, FULL_TEXTURE_RECT );
228 mAtlasRect = FULL_TEXTURE_RECT;
233 textureSet.SetImage( 0u, texture );
241 } // namespace Internal
243 } // namespace Toolkit