1 #ifndef __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_H__
2 #define __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_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.
22 #include <dali/public-api/math/matrix.h>
23 #include <dali/public-api/math/viewport.h>
24 #include <dali/internal/update/render-tasks/scene-graph-camera.h>
25 #include <dali/internal/render/common/render-list.h>
42 * A set of rendering instructions consisting of:
43 * - The list(s) of renderers sorted in the correct rendering order.
44 * - The camera related matrices to use when rendering.
45 * - An optional off-screen render target.
46 * There is one RenderInstruction per RenderTarget, all renderers of all layers
47 * get collated onto the single list of lists (mRenderLists)
49 class RenderInstruction
54 * Default constructor so this can be stored in STL containers
64 * Get the next free Renderlist
65 * @param capacityRequired in this list
66 * @return the renderlist
68 RenderList& GetNextFreeRenderList( size_t capacityRequired );
71 * Inform the RenderInstruction that processing for this frame is complete
72 * This method should only be called from Update thread
74 void UpdateCompleted();
77 * @return the count of active Renderlists
79 RenderListContainer::SizeType RenderListCount() const;
82 * Return the renderlist at given index
83 * @pre index is inside the valid range of initialized lists
84 * @param index of list to return
85 * @return pointer to the renderlist, or null if the index is out of bounds.
87 const RenderList* GetRenderList( RenderListContainer::SizeType index ) const;
90 * Reset render-instruction
91 * render-lists are cleared but not released, while matrices and other settings reset in
92 * preparation for building a set of instructions for the renderer.
94 * @param[in] camera to use to get view and projection matrices.
95 * @param[in] offscreenId A resource Id of an off-screen render target, or 0
96 * @param[in] viewport A pointer to a viewport, of NULL.
97 * @param[in] clearColor A pointer to a color to clear with, or NULL if no clear is required.
99 void Reset( Camera* camera,
100 unsigned int offscreenId,
101 const Viewport* viewport,
102 const Vector4* clearColor );
105 * Get the view matrix for rendering
106 * @param index of the rendering side
107 * @return the view matrix
109 const Matrix* GetViewMatrix( BufferIndex index ) const
111 // inlined as this is called once per frame per render instruction
112 return &mCamera->GetViewMatrix( index );
116 * Get the projection matrix for rendering
117 * @param index of the rendering side
118 * @return the projection matrix
120 const Matrix* GetProjectionMatrix( BufferIndex index ) const
122 // inlined as this is called once per frame per render instruction
123 return &mCamera->GetProjectionMatrix( index );
129 RenderInstruction(const RenderInstruction&);
131 RenderInstruction& operator=(const RenderInstruction& rhs);
135 Render::RenderTracker* mRenderTracker; ///< Pointer to an optional tracker object (not owned)
137 Viewport mViewport; ///< Optional viewport
138 Vector4 mClearColor; ///< Optional color to clear with
139 bool mIsViewportSet:1; ///< Flag to determine whether the viewport is set
140 bool mIsClearColorSet:1; ///< Flag to determine whether the clearColor is set
142 unsigned int mOffscreenTextureId; ///< Optional offscreen target
146 Camera* mCamera; ///< camera that is used
147 RenderListContainer mRenderLists; ///< container of all render lists
148 RenderListContainer::SizeType mNextFreeRenderList; ///< index for the next free render list
152 } // namespace SceneGraph
154 } // namespace Internal
158 #endif // __DALI_INTERNAL_SCENE_GRAPH_RENDER_INSTRUCTION_H__