1 #ifndef DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H
2 #define DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H
5 * Copyright (c) 2023 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-renderer.h>
27 #include <dali/internal/render/renderers/render-vertex-buffer.h>
28 #include <dali/public-api/math/rect.h>
30 #include <dali/graphics-api/graphics-texture-upload-helper.h> // for Graphics::UploadParams
38 } // namespace Integration
60 class RenderInstruction;
61 class RenderInstructionContainer;
66 * RenderManager is responsible for rendering the result of the previous "update", which
67 * is provided in a RenderCommand during UpdateManager::Update().
73 * Construct a new RenderManager.
74 * @param[in] graphicsController The graphics controller for a given rendering backend
75 * @param[in] depthBufferAvailable Whether the depth buffer is available
76 * @param[in] stencilBufferAvailable Whether the stencil buffer is available
78 static RenderManager* New(Graphics::Controller& graphicsController,
79 Integration::DepthBufferAvailable depthBufferAvailable,
80 Integration::StencilBufferAvailable stencilBufferAvailable,
81 Integration::PartialUpdateAvailable partialUpdateAvailable);
84 * Non-virtual destructor; not intended as a base class
89 * Retrieve the RenderQueue. Messages should only be added to this from the update-thread.
90 * @return The render queue.
92 RenderQueue& GetRenderQueue();
95 * Set the upstream interface for compiled shader binaries to be sent back to for eventual
97 * @param[in] upstream The abstract interface to send any received ShaderDatas onwards to..
98 * @note This should be called during core initialisation if shader binaries are to be used.
100 void SetShaderSaver(ShaderSaver& upstream);
102 // The foltlowing methods should be called via RenderQueue messages
105 * Set the frame time delta (time elapsed since the last frame.
106 * @param[in] deltaTime the delta time
108 void SetFrameDeltaTime(float deltaTime);
111 * Add a Renderer to the render manager.
112 * @param[in] renderer The renderer to add.
113 * @post renderer is notionally owned by RenderManager
115 void AddRenderer(const Render::RendererKey& renderer);
118 * Remove a Renderer from the render manager.
119 * @param[in] renderer The renderer to remove.
120 * @post renderer is destroyed.
122 void RemoveRenderer(const Render::RendererKey& renderer);
125 * Add a sampler to the render manager.
126 * @param[in] sampler The sampler to add.
127 * @post sampler is owned by RenderManager
129 void AddSampler(OwnerPointer<Render::Sampler>& sampler);
132 * Remove a sampler from the render manager.
133 * @param[in] sampler The sampler to remove.
134 * @post sampler is destroyed.
136 void RemoveSampler(Render::Sampler* sampler);
139 * Set minification and magnification filter modes for a sampler
140 * @param[in] minFilterMode Filter mode to use when the texture is minificated
141 * @param[in] magFilterMode Filter mode to use when the texture is magnified
143 void SetFilterMode(Render::Sampler* sampler, uint32_t minFilterMode, uint32_t magFilterMode);
146 * Set wrapping mode for a sampler
147 * @param[in] rWrapMode Wrap mode in the z direction
148 * @param[in] uWrapMode Wrap mode in the x direction
149 * @param[in] vWrapMode Wrap mode in the y direction
151 void SetWrapMode(Render::Sampler* sampler, uint32_t rWrapMode, uint32_t sWrapMode, uint32_t tWrapMode);
154 * Add a property buffer to the render manager.
155 * @param[in] vertexBuffer The property buffer to add.
156 * @post propertBuffer is owned by RenderManager
158 void AddVertexBuffer(OwnerPointer<Render::VertexBuffer>& vertexBuffer);
161 * Remove a property buffer from the render manager.
162 * @param[in] vertexBuffer The property buffer to remove.
163 * @post vertexBuffer is destroyed.
165 void RemoveVertexBuffer(Render::VertexBuffer* vertexBuffer);
168 * Add a geometry to the render manager.
169 * @param[in] geometry The geometry to add.
170 * @post geometry is owned by RenderManager
172 void AddGeometry(OwnerPointer<Render::Geometry>& geometry);
175 * Remove a geometry from the render manager.
176 * @param[in] geometry The geometry to remove.
177 * @post geometry is destroyed.
179 void RemoveGeometry(Render::Geometry* geometry);
182 * Adds a property buffer to a geometry from the render manager.
183 * @param[in] geometry The geometry
184 * @param[in] vertexBuffer The property buffer to remove.
186 void AttachVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer);
189 * Remove a property buffer from a Render::Geometry from the render manager.
190 * @param[in] geometry The geometry
191 * @param[in] vertexBuffer The property buffer to remove.
192 * @post property buffer is destroyed.
194 void RemoveVertexBuffer(Render::Geometry* geometry, Render::VertexBuffer* vertexBuffer);
197 * Sets the format of an existing property buffer
198 * @param[in] vertexBuffer The property buffer.
199 * @param[in] format The new format of the buffer
201 void SetVertexBufferFormat(Render::VertexBuffer* vertexBuffer, OwnerPointer<Render::VertexBuffer::Format>& format);
204 * Sets the data of an existing property buffer
205 * @param[in] vertexBuffer The property buffer.
206 * @param[in] data The new data of the buffer
207 * @param[in] size The new size of the buffer
209 void SetVertexBufferData(Render::VertexBuffer* vertexBuffer, OwnerPointer<Vector<uint8_t>>& data, uint32_t size);
212 * Sets vertex buffer update callback
213 * @param vertexBuffer
216 void SetVertexBufferUpdateCallback(Render::VertexBuffer* vertexBuffer, Dali::VertexBufferUpdateCallback* callback);
219 * Sets the data for the index buffer of an existing geometry
220 * @param[in] geometry The geometry
221 * @param[in] data A vector containing the indices
223 void SetIndexBuffer(Render::Geometry* geometry, Render::Geometry::Uint16ContainerType& data);
226 * Sets the data for the index buffer of an existing geometry
227 * @param[in] geometry The geometry
228 * @param[in] data A vector containing the indices
230 void SetIndexBuffer(Render::Geometry* geometry, Render::Geometry::Uint32ContainerType& data);
233 * Set the geometry type of an existing render geometry
234 * @param[in] geometry The render geometry
235 * @param[in] geometryType The new geometry type
237 void SetGeometryType(Render::Geometry* geometry, uint32_t geometryType);
240 * Adds a texture to the render manager
241 * @param[in] texture The texture to add
243 void AddTexture(const Render::TextureKey& texture);
246 * Removes a texture from the render manager
247 * @param[in] texture The texture to remove
249 void RemoveTexture(const Render::TextureKey& texture);
252 * Uploads data to an existing texture
253 * @param[in] texture The texture
254 * @param[in] pixelData The pixel data object
255 * @param[in] params The parameters for the upload
257 void UploadTexture(const Render::TextureKey& texture, PixelDataPtr pixelData, const Graphics::UploadParams& params);
260 * Generates mipmaps for a given texture
261 * @param[in] texture The texture
263 void GenerateMipmaps(const Render::TextureKey& texture);
266 * Set the texture size for a given texture
267 * @param[in] texture The texture
268 * @param[in] size The texture size
270 void SetTextureSize(const Render::TextureKey& texture, const Dali::ImageDimensions& size);
273 * Set the texture pixel format for a given texture
274 * @param[in] texture The texture
275 * @param[in] pixelFormat The texture pixel format
277 void SetTextureFormat(const Render::TextureKey& texture, Dali::Pixel::Format pixelFormat);
280 * Sets the updated flag of a texture
281 * @param[in] texture The updated texture
283 void SetTextureUpdated(const Render::TextureKey& textureKey);
286 * Adds a framebuffer to the render manager
287 * @param[in] frameBuffer The framebuffer to add
289 void AddFrameBuffer(OwnerPointer<Render::FrameBuffer>& frameBuffer);
292 * Removes a framebuffer from the render manager
293 * @param[in] frameBuffer The framebuffer to remove
295 void RemoveFrameBuffer(Render::FrameBuffer* frameBuffer);
298 * Attaches a texture as color output to the existing frame buffer
299 * @param[in] frameBuffer The FrameBuffer
300 * @param[in] texture The texture that will be used as output when rendering
301 * @param[in] mipmapLevel The mipmap of the texture to be attached
302 * @param[in] layer Indicates which layer of a cube map or array texture to attach. Unused for 2D textures
304 void AttachColorTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel, uint32_t layer);
307 * Attaches a texture as depth output to the existing frame buffer
308 * @param[in] frameBuffer The FrameBuffer
309 * @param[in] texture The texture that will be used as output when rendering
310 * @param[in] mipmapLevel The mipmap of the texture to be attached
312 void AttachDepthTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel);
315 * Attaches a texture as depth/stencil output to the existing frame buffer
316 * @param[in] frameBuffer The FrameBuffer
317 * @param[in] texture The texture that will be used as output when rendering
318 * @param[in] mipmapLevel The mipmap of the texture to be attached
320 void AttachDepthStencilTextureToFrameBuffer(Render::FrameBuffer* frameBuffer, Render::Texture* texture, uint32_t mipmapLevel);
323 * Set a multisampling level value as texture output to the existing frame buffer
324 * @param[in] frameBuffer The FrameBuffer
325 * @param[in] multiSamplingLevel The level of multisampling
327 void SetMultiSamplingLevelToFrameBuffer(Render::FrameBuffer* frameBuffer, uint8_t multiSamplingLevel);
330 * Initializes a Scene to the render manager
331 * @param[in] scene The Scene to initialize
333 void InitializeScene(SceneGraph::Scene* scene);
336 * Uninitializes a Scene to the render manager
337 * @param[in] scene The Scene to uninitialize
339 void UninitializeScene(SceneGraph::Scene* scene);
342 * This is called when the surface of the scene has been replaced.
343 * @param[in] scene The scene.
345 void SurfaceReplaced(SceneGraph::Scene* scene);
348 * Adds a render tracker to the RenderManager. RenderManager takes ownership of the
349 * tracker. The lifetime of the tracker is related to the lifetime of the tracked
350 * object, usually an offscreen render task.
351 * @param[in] renderTracker The render tracker
353 void AddRenderTracker(Render::RenderTracker* renderTracker);
356 * Removes a render tracker from the RenderManager.
357 * @param[in] renderTracker The render tracker to remove.
359 void RemoveRenderTracker(Render::RenderTracker* renderTracker);
361 // This method should be called from Core::PreRender()
364 * This is called before rendering any scene in the next frame. This method should be preceded
365 * by a call up Update.
366 * Multi-threading note: this method should be called from a dedicated rendering thread.
367 * @pre The graphics implementation must be initialized
368 * @param[out] status showing whether update is required to run.
369 * @param[in] forceClear force the Clear on the framebuffer even if nothing is rendered.
371 void PreRender(Integration::RenderStatus& status, bool forceClear);
373 // This method should be called from Core::PreRender()
376 * This is called before rendering any scene in the next frame. This method should be preceded
377 * by a call up Update.
378 * Multi-threading note: this method should be called from a dedicated rendering thread.
379 * @pre The graphics implementation must be initialized
380 * @param[in] scene The scene to be rendered.
381 * @param[out] damagedRects The list of damaged rects for the current render pass.
383 void PreRender(Integration::Scene& scene, std::vector<Rect<int>>& damagedRects);
385 // This method should be called from Core::RenderScene()
388 * Render a scene in the next frame. This method should be preceded by a call up PreRender.
389 * This method should be called twice. The first pass to render off-screen frame buffers if any,
390 * and the second pass to render the surface.
391 * Multi-threading note: this method should be called from a dedicated rendering thread.
392 * @pre The graphics implementation must be initialized
393 * @param[out] status contains the rendering flags.
394 * @param[in] scene The scene to be rendered.
395 * @param[in] renderToFbo True to render off-screen frame buffers only if any, and False to render the surface only.
397 void RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo);
400 * Render a scene in the next frame. This method should be preceded by a call up PreRender.
401 * This method should be called twice. The first pass to render off-screen frame buffers if any,
402 * and the second pass to render the surface.
403 * Multi-threading note: this method should be called from a dedicated rendering thread.
404 * @pre The graphics implementation must be initialized
405 * @param[out] status contains the rendering flags.
406 * @param[in] scene The scene to be rendered.
407 * @param[in] renderToFbo True to render off-screen frame buffers only if any, and False to render the surface only.
408 * @param[in] clippingRect The clipping rect for the rendered scene.
410 void RenderScene(Integration::RenderStatus& status, Integration::Scene& scene, bool renderToFbo, Rect<int>& clippingRect);
412 // This method should be called from Core::PostRender()
415 * This is called after rendering all the scenes in the next frame. This method should be
416 * followed by a call up RenderScene.
417 * Multi-threading note: this method should be called from a dedicated rendering thread.
418 * @pre The graphics implementation must be initialized
424 * Construct a new RenderManager.
429 RenderManager(const RenderManager&);
432 RenderManager& operator=(const RenderManager& rhs);
439 } // namespace SceneGraph
441 } // namespace Internal
445 #endif // DALI_INTERNAL_SCENE_GRAPH_RENDER_MANAGER_H