1 #ifndef DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H
2 #define DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H
5 * Copyright (c) 2021 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/graphics-api/graphics-controller.h>
23 #include <dali/integration-api/core-enumerations.h>
24 #include <dali/internal/common/shader-saver.h>
25 #include <dali/internal/event/rendering/texture-impl.h>
26 #include <dali/internal/render/renderers/render-vertex-buffer.h>
27 #include <dali/public-api/math/rect.h>
34 class GlContextHelperAbstraction;
37 } // namespace Integration
59 class RenderInstruction;
60 class RenderInstructionContainer;
65 * RenderManager is responsible for rendering the result of the previous "update", which
66 * is provided in a RenderCommand during UpdateManager::Update().
72 * Construct a new RenderManager.
73 * @param[in] graphicsController The graphics controller for a given rendering backend
74 * @param[in] depthBufferAvailable Whether the depth buffer is available
75 * @param[in] stencilBufferAvailable Whether the stencil buffer is available
77 static RenderManager* New(Graphics::Controller& graphicsController,
78 Integration::DepthBufferAvailable depthBufferAvailable,
79 Integration::StencilBufferAvailable stencilBufferAvailable,
80 Integration::PartialUpdateAvailable partialUpdateAvailable);
83 * Non-virtual destructor; not intended as a base class
88 * Retrieve the RenderQueue. Messages should only be added to this from the update-thread.
89 * @return The render queue.
91 RenderQueue& GetRenderQueue();
94 * Set the upstream interface for compiled shader binaries to be sent back to for eventual
96 * @param[in] upstream The abstract interface to send any received ShaderDatas onwards to..
97 * @note This should be called during core initialisation if shader binaries are to be used.
99 void SetShaderSaver(ShaderSaver& upstream);
101 // The foltlowing methods should be called via RenderQueue messages
104 * Set the frame time delta (time elapsed since the last frame.
105 * @param[in] deltaTime the delta time
107 void SetFrameDeltaTime(float deltaTime);
110 * Add a Renderer to the render manager.
111 * @param[in] renderer The renderer to add.
112 * @post renderer is owned by RenderManager
114 void AddRenderer(OwnerPointer<Render::Renderer>& renderer);
117 * Remove a Renderer from the render manager.
118 * @param[in] renderer The renderer to remove.
119 * @post renderer is destroyed.
121 void RemoveRenderer(Render::Renderer* renderer);
124 * Add a sampler to the render manager.
125 * @param[in] sampler The sampler to add.
126 * @post sampler is owned by RenderManager
128 void AddSampler(OwnerPointer<Render::Sampler>& sampler);
131 * Remove a sampler from the render manager.
132 * @param[in] sampler The sampler to remove.
133 * @post sampler is destroyed.
135 void RemoveSampler(Render::Sampler* sampler);
138 * Set minification and magnification filter modes for a sampler
139 * @param[in] minFilterMode Filter mode to use when the texture is minificated
140 * @param[in] magFilterMode Filter mode to use when the texture is magnified
142 void SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode);
145 * Set wrapping mode for a sampler
146 * @param[in] rWrapMode Wrap mode in the z direction
147 * @param[in] uWrapMode Wrap mode in the x direction
148 * @param[in] vWrapMode Wrap mode in the y direction
150 void SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode);
153 * Add a property buffer to the render manager.
154 * @param[in] vertexBuffer The property buffer to add.
155 * @post propertBuffer is owned by RenderManager
157 void AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer);
160 * Remove a property buffer from the render manager.
161 * @param[in] vertexBuffer The property buffer to remove.
162 * @post vertexBuffer is destroyed.
164 void RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer);
167 * Add a geometry to the render manager.
168 * @param[in] geometry The geometry to add.
169 * @post geometry is owned by RenderManager
171 void AddGeometry(OwnerPointer<Render::Geometry>& geometry);
174 * Remove a geometry from the render manager.
175 * @param[in] geometry The geometry to remove.
176 * @post geometry is destroyed.
178 void RemoveGeometry(Render::Geometry* geometry);
181 * Adds a property buffer to a geometry from the render manager.
182 * @param[in] geometry The geometry
183 * @param[in] vertexBuffer The property buffer to remove.
185 void AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer);
188 * Remove a property buffer from a Render::Geometry from the render manager.
189 * @param[in] geometry The geometry
190 * @param[in] vertexBuffer The property buffer to remove.
191 * @post property buffer is destroyed.
193 void RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer);
196 * Sets the format of an existing property buffer
197 * @param[in] vertexBuffer The property buffer.
198 * @param[in] format The new format of the buffer
200 void SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format);
203 * Sets the data of an existing property buffer
204 * @param[in] vertexBuffer The property buffer.
205 * @param[in] data The new data of the buffer
206 * @param[in] size The new size of the buffer
208 void SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size);
211 * Sets the data for the index buffer of an existing geometry
212 * @param[in] geometry The geometry
213 * @param[in] data A vector containing the indices
215 void SetIndexBuffer(Render::Geometry* geometry, Dali::Vector<uint16_t>& data);
218 * Set the geometry type of an existing render geometry
219 * @param[in] geometry The render geometry
220 * @param[in] geometryType The new geometry type
222 void SetGeometryType(Render::Geometry* geometry, uint32_t geometryType);
225 * Adds a texture to the render manager
226 * @param[in] texture The texture to add
228 void AddTexture(OwnerPointer<Render::Texture>& texture);
231 * Removes a texture from the render manager
232 * @param[in] texture The texture to remove
234 void RemoveTexture(Render::Texture* texture);
237 * Uploads data to an existing texture
238 * @param[in] texture The texture
239 * @param[in] pixelData The pixel data object
240 * @param[in] params The parameters for the upload
242 void UploadTexture(Render::Texture* texture, PixelDataPtr pixelData, const Texture::UploadParams& params);
245 * Generates mipmaps for a given texture
246 * @param[in] texture The texture
248 void GenerateMipmaps(Render::Texture* texture);
251 * Adds a framebuffer to the render manager
252 * @param[in] frameBuffer The framebuffer to add
254 void AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer);
257 * Removes a framebuffer from the render manager
258 * @param[in] frameBuffer The framebuffer to remove
260 void RemoveFrameBuffer(Render::FrameBuffer* frameBuffer);
263 * Attaches a texture as color output to the existing frame buffer
264 * @param[in] frameBuffer The FrameBuffer
265 * @param[in] texture The texture that will be used as output when rendering
266 * @param[in] mipmapLevel The mipmap of the texture to be attached
267 * @param[in] layer Indicates which layer of a cube map or array texture to attach. Unused for 2D textures
269 void AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer);
272 * Attaches a texture as depth output to the existing frame buffer
273 * @param[in] frameBuffer The FrameBuffer
274 * @param[in] texture The texture that will be used as output when rendering
275 * @param[in] mipmapLevel The mipmap of the texture to be attached
277 void AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel);
280 * Attaches a texture as depth/stencil output to the existing frame buffer
281 * @param[in] frameBuffer The FrameBuffer
282 * @param[in] texture The texture that will be used as output when rendering
283 * @param[in] mipmapLevel The mipmap of the texture to be attached
285 void AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel);
288 * Initializes a Scene to the render manager
289 * @param[in] scene The Scene to initialize
291 void InitializeScene(SceneGraph::Scene* scene);
294 * Uninitializes a Scene to the render manager
295 * @param[in] scene The Scene to uninitialize
297 void UninitializeScene(SceneGraph::Scene* scene);
300 * This is called when the surface of the scene has been replaced.
301 * @param[in] scene The scene.
303 void SurfaceReplaced(SceneGraph::Scene* scene);
306 * Adds a render tracker to the RenderManager. RenderManager takes ownership of the
307 * tracker. The lifetime of the tracker is related to the lifetime of the tracked
308 * object, usually an offscreen render task.
309 * @param[in] renderTracker The render tracker
311 void AddRenderTracker(Render::RenderTracker* renderTracker);
314 * Removes a render tracker from the RenderManager.
315 * @param[in] renderTracker The render tracker to remove.
317 void RemoveRenderTracker(Render::RenderTracker* renderTracker);
319 // This method should be called from Core::PreRender()
322 * This is called before rendering any scene in the next frame. This method should be preceded
323 * by a call up Update.
324 * Multi-threading note: this method should be called from a dedicated rendering thread.
325 * @pre The graphics implementation must be initialized
326 * @param[out] status showing whether update is required to run.
327 * @param[in] forceClear force the Clear on the framebuffer even if nothing is rendered.
328 * @param[in] uploadOnly uploadOnly Upload the resource only without rendering.
330 void PreRender(Integration::RenderStatus& status, bool forceClear, bool uploadOnly);
332 // This method should be called from Core::PreRender()
335 * This is called before rendering any scene in the next frame. This method should be preceded
336 * by a call up Update.
337 * Multi-threading note: this method should be called from a dedicated rendering thread.
338 * @pre The graphics implementation must be initialized
339 * @param[in] scene The scene to be rendered.
340 * @param[out] damagedRects The list of damaged rects for the current render pass.
342 void PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects);
344 // This method should be called from Core::RenderScene()
347 * Render a scene in the next frame. This method should be preceded by a call up PreRender.
348 * This method should be called twice. The first pass to render off-screen frame buffers if any,
349 * and the second pass to render the surface.
350 * Multi-threading note: this method should be called from a dedicated rendering thread.
351 * @pre The graphics implementation must be initialized
352 * @param[out] status contains the rendering flags.
353 * @param[in] scene The scene to be rendered.
354 * @param[in] renderToFbo True to render off-screen frame buffers only if any, and False to render the surface only.
356 void RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo);
359 * Render a scene in the next frame. This method should be preceded by a call up PreRender.
360 * This method should be called twice. The first pass to render off-screen frame buffers if any,
361 * and the second pass to render the surface.
362 * Multi-threading note: this method should be called from a dedicated rendering thread.
363 * @pre The graphics implementation must be initialized
364 * @param[out] status contains the rendering flags.
365 * @param[in] scene The scene to be rendered.
366 * @param[in] renderToFbo True to render off-screen frame buffers only if any, and False to render the surface only.
367 * @param[in] clippingRect The clipping rect for the rendered scene.
369 void RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect);
371 // This method should be called from Core::PostRender()
374 * This is called after rendering all the scenes in the next frame. This method should be
375 * followed by a call up RenderScene.
376 * Multi-threading note: this method should be called from a dedicated rendering thread.
377 * @pre The graphics implementation must be initialized
378 * @param[in] uploadOnly uploadOnly Upload the resource only without rendering.
380 void PostRender(bool uploadOnly);
384 * Construct a new RenderManager.
389 RenderManager(const RenderManager&);
392 RenderManager& operator=(const RenderManager& rhs);
399 } // namespace SceneGraph
401 } // namespace Internal
405 #endif // DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H