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 "batch-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/integration-api/debug.h>
26 #include <dali/devel-api/adaptor-framework/bitmap-loader.h>
27 #include <dali/public-api/images/pixel-data.h>
28 #include <dali/public-api/rendering/texture.h>
29 #include <dali/public-api/rendering/texture-set.h>
30 #include <dali/public-api/rendering/texture-set.h>
33 #include <dali-toolkit/public-api/visuals/image-visual-properties.h>
34 #include <dali-toolkit/devel-api/visual-factory/devel-visual-properties.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/visual-base-data-impl.h>
39 #include <dali-toolkit/internal/visuals/visual-string-constants.h>
40 #include <dali-toolkit/internal/visuals/image-atlas-manager.h>
53 const char HTTP_URL[] = "http://";
54 const char HTTPS_URL[] = "https://";
57 const char * const DESIRED_WIDTH( "desiredWidth" );
58 const char * const DESIRED_HEIGHT( "desiredHeight" );
60 const Vector4 FULL_TEXTURE_RECT( 0.f, 0.f, 1.f, 1.f );
62 // The shader used for batched rendering. It uses interleaved data for
63 // attributes. Limitation is that all batched renderers will share same set of uniforms.
64 const char* VERTEX_SHADER = DALI_COMPOSE_SHADER(
65 attribute mediump vec2 aPosition;\n
66 attribute mediump vec2 aTexCoord;\n
67 uniform mediump mat4 uMvpMatrix;\n
68 varying mediump vec2 vTexCoord;\n
72 vTexCoord = aTexCoord;\n
73 gl_Position = uMvpMatrix * vec4( aPosition, 0.0, 1.0 );\n
77 const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
78 varying mediump vec2 vTexCoord;\n
79 uniform sampler2D sTexture;\n
80 uniform lowp vec4 uColor;\n
81 uniform lowp float uAlphaBlending; // Set to 1.0 for conventional alpha blending; if pre-multiplied alpha blending, set to 0.0
85 gl_FragColor = texture2D( sTexture, vTexCoord ) * vec4( uColor.rgb*max( uAlphaBlending, uColor.a ), uColor.a );\n
89 } // unnamed namespace
91 BatchImageVisualPtr BatchImageVisual::New( VisualFactoryCache& factoryCache )
93 return new BatchImageVisual( factoryCache );
96 BatchImageVisual::BatchImageVisual( VisualFactoryCache& factoryCache )
97 : Visual::Base( factoryCache ),
102 BatchImageVisual::~BatchImageVisual()
106 void BatchImageVisual::DoSetProperties( const Property::Map& propertyMap )
108 std::string oldImageUrl = mImageUrl;
109 Property::Value* imageURLValue = propertyMap.Find( Dali::Toolkit::ImageVisual::Property::URL, Dali::Toolkit::Internal::IMAGE_URL_NAME );
113 imageURLValue->Get( mImageUrl );
115 int desiredWidth = 0;
116 Property::Value* desiredWidthValue = propertyMap.Find( Dali::Toolkit::ImageVisual::Property::DESIRED_WIDTH, DESIRED_WIDTH );
117 if( desiredWidthValue )
119 desiredWidthValue->Get( desiredWidth );
122 int desiredHeight = 0;
123 Property::Value* desiredHeightValue = propertyMap.Find( Dali::Toolkit::ImageVisual::Property::DESIRED_HEIGHT, DESIRED_HEIGHT );
124 if( desiredHeightValue )
126 desiredHeightValue->Get( desiredHeight );
129 mDesiredSize = ImageDimensions( desiredWidth, desiredHeight );
133 void BatchImageVisual::SetSize( const Vector2& size )
135 Visual::Base::SetSize( size );
138 void BatchImageVisual::GetNaturalSize( Vector2& naturalSize ) const
140 if( mDesiredSize.GetWidth() > 0 && mDesiredSize.GetHeight() > 0 )
142 naturalSize.x = mDesiredSize.GetWidth();
143 naturalSize.y = mDesiredSize.GetHeight();
146 else if( !mImageUrl.empty() )
148 ImageDimensions dimentions = ResourceImage::GetImageSize( mImageUrl );
149 naturalSize.x = dimentions.GetWidth();
150 naturalSize.y = dimentions.GetHeight();
154 naturalSize = Vector2::ZERO;
157 void BatchImageVisual::InitializeRenderer( const std::string& imageUrl )
159 if( imageUrl.empty() )
164 mImageUrl = imageUrl;
165 mImpl->mRenderer.Reset();
166 mAtlasRect = FULL_TEXTURE_RECT;
168 if( !mImpl->mCustomShader &&
169 ( strncasecmp( imageUrl.c_str(),HTTP_URL, sizeof( HTTP_URL ) -1 ) != 0 ) && // Ignore remote images
170 ( strncasecmp( imageUrl.c_str(), HTTPS_URL, sizeof( HTTPS_URL ) -1 ) != 0 ) )
172 if( !mImpl->mRenderer )
174 TextureSet textureSet = mFactoryCache.GetAtlasManager()->Add(
179 // If image doesn't fit the atlas, create new texture set with texture that
183 BitmapLoader loader = BitmapLoader::New( imageUrl, mDesiredSize );
185 Dali::PixelData pixelData = loader.GetPixelData();
186 Texture texture = Texture::New( TextureType::TEXTURE_2D,
187 pixelData.GetPixelFormat(),
188 pixelData.GetWidth(),
189 pixelData.GetHeight() );
190 texture.Upload( pixelData );
191 textureSet = TextureSet::New();
192 textureSet.SetTexture( 0, texture );
193 mAtlasRect = FULL_TEXTURE_RECT;
196 Geometry geometry = mFactoryCache.CreateBatchQuadGeometry( mAtlasRect );
197 Shader shader( GetBatchShader( mFactoryCache ) );
198 mImpl->mRenderer = Renderer::New( geometry, shader );
199 mImpl->mRenderer.SetTextures( textureSet );
201 // Turn batching on, to send message it must be on stage.
202 mImpl->mRenderer.SetProperty( Dali::Renderer::Property::BATCHING_ENABLED, true );
204 mImpl->mFlags |= Impl::IS_FROM_CACHE;
208 void BatchImageVisual::DoSetOnStage( Actor& actor )
210 if( !mImageUrl.empty() )
212 InitializeRenderer( mImageUrl );
214 // Turn batching on, to send message it must be on stage
215 mImpl->mRenderer.SetProperty( Dali::Renderer::Property::BATCHING_ENABLED, true );
217 actor.AddRenderer( mImpl->mRenderer );
220 void BatchImageVisual::DoSetOffStage( Actor& actor )
222 actor.RemoveRenderer( mImpl->mRenderer );
224 // If we own the image then make sure we release it when we go off stage
225 if( !mImageUrl.empty() )
227 CleanCache( mImageUrl );
231 mImpl->mRenderer.Reset();
235 void BatchImageVisual::DoCreatePropertyMap( Property::Map& map ) const
238 map.Insert( Toolkit::VisualProperty::TYPE, Toolkit::Visual::IMAGE );
240 if( !mImageUrl.empty() )
242 map.Insert( Toolkit::ImageVisual::Property::URL, mImageUrl );
243 map.Insert( Toolkit::ImageVisual::Property::BATCHING_ENABLED, true );
244 map.Insert( Toolkit::ImageVisual::Property::DESIRED_WIDTH, mDesiredSize.GetWidth() );
245 map.Insert( Toolkit::ImageVisual::Property::DESIRED_HEIGHT, mDesiredSize.GetHeight() );
249 void BatchImageVisual::DoSetProperty( Dali::Property::Index index, const Dali::Property::Value& propertyValue )
254 Dali::Property::Value BatchImageVisual::DoGetProperty( Dali::Property::Index index )
257 return Dali::Property::Value();
260 Shader BatchImageVisual::GetBatchShader( VisualFactoryCache& factoryCache )
262 Shader shader = factoryCache.GetShader( VisualFactoryCache::BATCH_IMAGE_SHADER );
265 shader = Shader::New( VERTEX_SHADER, FRAGMENT_SHADER );
266 factoryCache.SaveShader( VisualFactoryCache::BATCH_IMAGE_SHADER, shader );
271 void BatchImageVisual::CleanCache(const std::string& url)
273 TextureSet textureSet = mImpl->mRenderer.GetTextures();
274 mImpl->mRenderer.Reset();
275 if( mFactoryCache.CleanRendererCache( url ) )
277 mFactoryCache.GetAtlasManager()->Remove( textureSet, mAtlasRect );
282 } // namespace Internal
284 } // namespace Toolkit