1 #ifndef __DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H__
2 #define __DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H__
5 * Copyright (c) 2014 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.
22 #include <dali/internal/common/message.h>
23 #include <dali/internal/render/common/post-process-resource-dispatcher.h>
24 #include <dali/internal/render/gl-resources/bitmap-texture.h>
25 #include <dali/internal/update/common/double-buffered.h>
26 #include <dali/internal/update/resources/resource-manager-declarations.h>
27 #include <dali/public-api/math/rect.h>
50 class RenderInstruction;
51 class RenderInstructionContainer;
55 * RenderManager is responsible for rendering the result of the previous "update", which
56 * is provided in a RenderCommand during UpdateManager::Update().
58 class RenderManager : public PostProcessResourceDispatcher
63 * Construct a new RenderManager.
64 * @param[in] glAbstraction The GL abstraction used for rendering.
65 * @param[out] resourcePostProcessQueue A queue for sending rendered texture ids to the update-thread.
67 static RenderManager* New( Dali::Integration::GlAbstraction& glAbstraction, ResourcePostProcessList& resourcePostProcessQueue );
70 * Non-virtual destructor; not intended as a base class
75 * Retrieve the RenderQueue. Messages should only be added to this from the update-thread.
76 * @return The render queue.
78 RenderQueue& GetRenderQueue();
81 * Retrieve the texture cache. Messages should only be sent to this from the update thread,
82 * accessor methods should only be used from the render thread.
83 * @return The texture cache
85 TextureCache& GetTextureCache();
88 * Retrieves the context. Can only be called inside render thread
89 * TODO remove this when programs are initialized in render thread
90 * @return reference to the context
92 Context& GetContext();
95 * @copydoc Dali::Integration::Core::ContextCreated()
97 void ContextCreated();
100 * @copydoc Dali::Integration::Core::ContextToBeDestroyed()
102 void ContextDestroyed();
105 * Dispatch requests onto the postProcessResourcesQueue
106 * @param[in] request The request to dispatch
108 virtual void DispatchPostProcessRequest(ResourcePostProcessRequest& request);
111 * Retrieve the render instructions; these should be set during each "update" traversal.
112 * @return The render instruction container.
114 RenderInstructionContainer& GetRenderInstructionContainer();
116 // The following methods should be called via RenderQueue messages
119 * Set the background color i.e. the glClear color used at the beginning of each frame.
120 * @param[in] color The new background color.
122 void SetBackgroundColor( const Vector4& color );
125 * Set the frame time delta (time elapsed since the last frame.
126 * @param[in] deltaTime the delta time
128 void SetFrameDeltaTime( float deltaTime );
131 * Returns the rectangle for the default surface (probably the application window).
132 * @return Rectangle for the surface.
134 void SetDefaultSurfaceRect( const Rect<int>& rect );
137 * Add a Renderer to the render manager.
138 * @param[in] renderer The renderer to add.
139 * @post renderer is owned by RenderManager
141 void AddRenderer( Renderer* renderer );
144 * Remove a Renderer from the render manager.
145 * @param[in] renderer The renderer to remove.
146 * @post renderer is destroyed.
148 void RemoveRenderer( Renderer* renderer );
151 * Adds a RenderMaterial to the render manager for MeshRenderers to use.
152 * The RenderManager takes ownership of the material
153 * @param[in] renderMaterial
154 * @post renderMaterial is owned by RenderManager
156 void AddRenderMaterial( RenderMaterial* renderMaterial );
159 * Removes a RenderMaterial from the RenderManager
160 * RenderManager will destroy the material
161 * @pre renderManager owns the materail
162 * @param[in] renderMaterial
163 * @post renderMaterial is destroyed
165 void RemoveRenderMaterial( RenderMaterial* renderMaterial );
168 * Adds a render tracker to the RenderManager. RenderManager takes ownership of the
169 * tracker. The lifetime of the tracker is related to the lifetime of the tracked
170 * object, usually an offscreen render task.
171 * @param[in] renderTracker The render tracker
173 void AddRenderTracker( RenderTracker* renderTracker );
176 * Removes a render tracker from the RenderManager.
177 * @param[in] renderTracker The render tracker to remove.
179 void RemoveRenderTracker( RenderTracker* renderTracker );
181 // This method should be called from Core::Render()
184 * Renders the results of the previous "update" traversal.
185 * @param[out] status contains the flag that indicates if render instructions exist
186 * @return true if a further update is required
188 bool Render( Integration::RenderStatus& status );
193 * Helper to process a single RenderInstruction.
194 * @param[in] instruction A description of the rendering operation.
196 void DoRender( RenderInstruction& instruction, float elapsedTime );
201 * Construct a new RenderManager.
206 RenderManager( const RenderManager& );
209 RenderManager& operator=( const RenderManager& rhs );
218 } // namespace SceneGraph
220 } // namespace Internal
224 #endif // __DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H__