1 #ifndef __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_H__
2 #define __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_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/math/matrix.h>
23 #include <dali/public-api/math/viewport.h>
24 #include <dali/internal/update/node-attachments/scene-graph-camera-attachment.h>
25 #include <dali/internal/render/common/render-list.h>
36 class CameraAttachment;
39 * A set of rendering instructions consisting of:
40 * - The list(s) of renderers sorted in the correct rendering order.
41 * - The camera related matrices to use when rendering.
42 * - An optional off-screen render target.
43 * There is one RenderInstruction per RenderTarget, all renderers of all layers
44 * get collated onto the single list of lists (mRenderLists)
46 class RenderInstruction
51 * Default constructor so this can be stored in STL containers
61 * Get the next free Renderlist
62 * @param capacityRequired in this list
63 * @return the renderlist
65 RenderList& GetNextFreeRenderList( size_t capacityRequired );
68 * Inform the RenderInstruction that processing for this frame is complete
69 * This method should only be called from Update thread
71 void UpdateCompleted();
74 * @return the count of active Renderlists
76 RenderListContainer::SizeType RenderListCount() const;
79 * Return the renderlist at given index
80 * @pre index is inside the valid range of initialized lists
81 * @param index of list to return
82 * @return pointer to the renderlist, or null if the index is out of bounds.
84 const RenderList* GetRenderList( RenderListContainer::SizeType index ) const;
87 * Reset render-instruction
88 * render-lists are cleared but not released, while matrices and other settings reset in
89 * preparation for building a set of instructions for the renderer.
91 * @param[in] cameraAttachment to use to get view and projection matrices.
92 * @param[in] offscreenId A resource Id of an off-screen render target, or 0
93 * @param[in] viewport A pointer to a viewport, of NULL.
94 * @param[in] clearColor A pointer to a color to clear with, or NULL if no clear is required.
96 void Reset( CameraAttachment* cameraAttachment,
97 unsigned int offscreenId,
98 const Viewport* viewport,
99 const Vector4* clearColor );
102 * Get the view matrix for rendering
103 * @param index of the rendering side
104 * @return the view matrix
106 const Matrix* GetViewMatrix( BufferIndex index ) const
108 // inlined as this is called once per frame per render instruction
109 return &mCameraAttachment->GetViewMatrix( index );
113 * Get the projection matrix for rendering
114 * @param index of the rendering side
115 * @return the projection matrix
117 const Matrix* GetProjectionMatrix( BufferIndex index ) const
119 // inlined as this is called once per frame per render instruction
120 return &mCameraAttachment->GetProjectionMatrix( index );
126 RenderInstruction(const RenderInstruction&);
128 RenderInstruction& operator=(const RenderInstruction& rhs);
130 public: // Data, TODO hide these
132 RenderTracker* mRenderTracker; ///< Pointer to an optional tracker object (not owned)
134 Viewport mViewport; ///< Optional viewport
135 Vector4 mClearColor; ///< Optional color to clear with
136 bool mIsViewportSet:1; ///< Flag to determine whether the viewport is set
137 bool mIsClearColorSet:1; ///< Flag to determine whether the clear-color is set
138 bool mCullMode:1; ///< True if renderers should be frustum culled
140 unsigned int mOffscreenTextureId; ///< Optional offscreen target
144 CameraAttachment* mCameraAttachment; ///< camera that is used
145 RenderListContainer mRenderLists; ///< container of all render lists
146 RenderListContainer::SizeType mNextFreeRenderList; ///< index for the next free render list
150 } // namespace SceneGraph
152 } // namespace Internal
156 #endif // __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_H__