1 #ifndef DALI_TOOLKIT_VISUAL_FACTORY_CACHE_H
2 #define DALI_TOOLKIT_VISUAL_FACTORY_CACHE_H
5 * Copyright (c) 2016 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
21 #include <dali/public-api/math/uint-16-pair.h>
22 #include <dali/public-api/object/ref-object.h>
23 #include <dali/public-api/rendering/geometry.h>
24 #include <dali/public-api/rendering/renderer.h>
25 #include <dali/public-api/rendering/shader.h>
26 #include <dali/devel-api/common/owner-container.h>
27 #include <dali/devel-api/object/weak-handle.h>
30 #include <dali-toolkit/internal/visuals/npatch-loader.h>
31 #include <dali-toolkit/internal/visuals/svg/svg-rasterize-thread.h>
42 class ImageAtlasManager;
43 typedef IntrusivePtr<ImageAtlasManager> ImageAtlasManagerPtr;
48 * Caches shaders and geometries. Owned by VisualFactory.
50 class VisualFactoryCache : public RefObject
55 * Type of shader for caching.
61 BORDER_SHADER_ANTI_ALIASING,
62 GRADIENT_SHADER_LINEAR_USER_SPACE,
63 GRADIENT_SHADER_LINEAR_BOUNDING_BOX,
64 GRADIENT_SHADER_RADIAL_USER_SPACE,
65 GRADIENT_SHADER_RADIAL_BOUNDING_BOX,
67 IMAGE_SHADER_ATLAS_DEFAULT_WRAP,
68 IMAGE_SHADER_ATLAS_CUSTOM_WRAP,
73 SHADER_TYPE_MAX = WIREFRAME_SHADER
77 * Type of geometry for caching.
84 NINE_PATCH_BORDER_GEOMETRY,
86 GEOMETRY_TYPE_MAX = WIREFRAME_GEOMETRY
97 * Request geometry of the given type.
98 * @return The geometry of the required type if it exist in the cache. Otherwise, an empty handle is returned.
100 Geometry GetGeometry( GeometryType type );
103 * Cache the geometry of the give type.
104 * @param[in] type The geometry type.
105 * @param[in] geometry The geometry for caching.
107 void SaveGeometry( GeometryType type, Geometry geometry);
110 * Request shader of the given type.
111 * @return The shader of the required type if it exist in the cache. Otherwise, an empty handle is returned.
113 Shader GetShader( ShaderType type );
116 * Cache the geometry of the give type.
117 * @param[in] type The geometry type.
118 * @param[in] geometry The geometry for caching.
120 void SaveShader( ShaderType type, Shader shader );
123 * Greate the quad geometry.
124 * Quad geometry is shared by multiple kind of Renderer, so implement it in the factory-cache.
126 static Geometry CreateQuadGeometry();
129 * Create the grid geometry.
130 * @param[in] gridSize The size of the grid.
131 * @return The created grid geometry.
133 static Geometry CreateGridGeometry( Uint16Pair gridSize );
136 * @brief Returns an image to be used when a visual has failed to correctly render
137 * @return The broken image handle.
139 static Image GetBrokenVisualImage();
144 * @brief Request renderer from the url
146 * @return The cached renderer if exist in the cache. Otherwise an empty handle is returned.
148 Renderer GetRenderer( const std::string& key ) const;
151 * @brief Cache the renderer based on the given key.
153 * If the key already exists in the cache, then the cache will save an additional renderer to the cache.
154 * RemoveRenderer will then need to be called twice to remove both items from the cache.
156 * @param[in] key The key to use for caching
157 * @param[in] renderer The Renderer to be cached
159 void SaveRenderer( const std::string& key, Renderer& renderer );
162 * @brief Cleans the renderer cache by removing the renderer from the cache based on the given key if there are no longer any references to it
164 * @param[in] key The key used for caching
166 * @return True if the renderer is no longer used anywhere, false otherwise
168 bool CleanRendererCache( const std::string& key );
171 * Get the image atlas manager.
172 * @return A pointer to the atlas manager
174 ImageAtlasManagerPtr GetAtlasManager();
177 * Get the N-Patch texture cache.
178 * @return A reference to the N patch loader
180 NPatchLoader& GetNPatchLoader();
183 * Get the SVG rasterization thread.
184 * @return A raw pointer pointing to the SVG rasterization thread.
186 SvgRasterizeThread* GetSVGRasterizationThread();
188 private: // for svg rasterization thread
191 * Applies the rasterized image to material
193 void ApplyRasterizedSVGToSampler();
198 * A reference counted object may only be deleted by calling Unreference()
200 virtual ~VisualFactoryCache();
203 * Undefined copy constructor.
205 VisualFactoryCache(const VisualFactoryCache&);
208 * Undefined assignment operator.
210 VisualFactoryCache& operator=(const VisualFactoryCache& rhs);
213 struct CachedRenderer
216 WeakHandle< Renderer > mRenderer;
218 CachedRenderer( const std::string& key, Renderer& renderer )
224 typedef Dali::Vector< std::size_t > HashVector;
225 typedef Dali::OwnerContainer< const CachedRenderer* > CachedRenderers;
228 * @brief Finds the first index into the cached visuals from the url
230 * @return Returns the first index into the cached renderer from the url if it exists in the cache, otherwise returns -1
232 int FindRenderer( const std::string& key ) const;
235 Geometry mGeometry[GEOMETRY_TYPE_MAX+1];
236 Shader mShader[SHADER_TYPE_MAX+1];
238 HashVector mRendererHashes;
239 CachedRenderers mRenderers;
241 Renderer mWireframeRenderer;
243 ImageAtlasManagerPtr mAtlasManager;
244 NPatchLoader mNPatchLoader;
246 SvgRasterizeThread* mSvgRasterizeThread;
249 } // namespace Internal
251 } // namespace Toolkit
255 #endif // DALI_TOOLKIT_VISUAL_FACTORY_CACHE_H