1 #ifndef __DALI_INTERNAL_DISCARD_QUEUE_H__
2 #define __DALI_INTERNAL_DISCARD_QUEUE_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/public-api/object/ref-object.h>
23 #include <dali/devel-api/common/owner-container.h>
24 #include <dali/internal/common/buffer-index.h>
25 #include <dali/internal/update/nodes/node-declarations.h>
26 #include <dali/internal/update/rendering/scene-graph-geometry.h>
27 #include <dali/internal/update/rendering/scene-graph-material.h>
28 #include <dali/internal/update/rendering/scene-graph-renderer.h>
47 * DiscardQueue is used to cleanup nodes & resources when no longer in use.
48 * Unwanted objects are added here during UpdateManager::Update().
49 * When added, messages will be sent to clean-up GL resources in the next Render.
50 * The Update for frame N+1 may occur in parallel with the rendering of frame N.
51 * Therefore objects queued for destruction in frame N, are destroyed frame N+2.
57 typedef OwnerContainer< Shader* > ShaderQueue;
58 typedef OwnerContainer< Geometry* > GeometryQueue;
59 typedef OwnerContainer< Material* > MaterialQueue;
60 typedef OwnerContainer< Renderer* > RendererQueue;
63 * Create a new DiscardQueue.
64 * @param[in] renderQueue Used to send GL clean-up messages for the next Render.
66 DiscardQueue( RenderQueue& renderQueue );
69 * Non-virtual destructor; DiscardQueue is not suitable as a base class.
74 * Adds an unwanted Node and its children to the discard queue.
75 * If necessary, a message will be sent to clean-up GL resources in the next Render.
76 * @pre This method is not thread-safe, and should only be called from the update-thread.
77 * @param[in] updateBufferIndex The current update buffer index.
78 * @param[in] node The discarded node; DiscardQueue takes ownership.
80 void Add( BufferIndex updateBufferIndex, Node* node );
83 * Adds an unwanted geometry to the discard queue.
84 * A message will be sent to clean up GL resources in the next Render
86 void Add( BufferIndex updateBufferIndex, Geometry* geometry );
89 * Adds an unwanted material to the discard queue.
90 * A message will be sent to clean up GL resources in the next Render.
92 void Add( BufferIndex updateBufferIndex, Material* material );
95 * Adds an unwanted shader to the discard queue.
96 * A message will be sent to clean-up GL resources in the next Render.
97 * @pre This method is not thread-safe, and should only be called from the update-thread.
98 * @param[in] bufferIndex The current update buffer index.
99 * @param[in] shader The shader to queue; DiscardQueue takes ownership.
101 void Add( BufferIndex bufferIndex, Shader* shader );
104 * Adds an unwanted Renderer to the discard queue.
105 * A message will be sent to clean up GL resources in the next Render.
106 * @param[in] updateBufferIndex The current update buffer index.
107 * @param[in] renderer The discarded renderer; DiscardQueue takes ownership.
109 void Add( BufferIndex updateBufferIndex, Renderer* renderer );
112 * Release the nodes which were queued in the frame N-2.
113 * @pre This method should be called (once) at the beginning of every Update.
114 * @param[in] updateBufferIndex The current update buffer index.
116 void Clear( BufferIndex updateBufferIndex );
121 DiscardQueue( const DiscardQueue& );
124 DiscardQueue& operator=( const DiscardQueue& rhs );
128 RenderQueue& mRenderQueue; ///< Used to send GL clean-up messages for the next Render.
130 // Messages are queued here when the update buffer index == 0
131 NodeOwnerContainer mNodeQueue0;
132 ShaderQueue mShaderQueue0;
133 GeometryQueue mGeometryQueue0;
134 MaterialQueue mMaterialQueue0;
135 RendererQueue mRendererQueue0;
137 // Messages are queued here when the update buffer index == 1
138 NodeOwnerContainer mNodeQueue1;
139 ShaderQueue mShaderQueue1;
140 GeometryQueue mGeometryQueue1;
141 MaterialQueue mMaterialQueue1;
142 RendererQueue mRendererQueue1;
145 } // namespace SceneGraph
147 } // namespace Internal
151 #endif // __DALI_INTERNAL_RESOURCE_DISCARD_QUEUE_H__