1 #ifndef DALI_INTERNAL_RENDER_RENDERER_H
2 #define DALI_INTERNAL_RENDER_RENDERER_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/integration-api/debug.h>
23 #include <dali/internal/common/blending-options.h>
24 #include <dali/internal/common/message.h>
25 #include <dali/internal/common/type-abstraction-enums.h>
26 #include <dali/internal/event/common/property-input-impl.h>
27 #include <dali/internal/render/data-providers/render-data-provider.h>
28 #include <dali/internal/render/gl-resources/gl-resource-owner.h>
29 #include <dali/internal/render/renderers/render-geometry.h>
30 #include <dali/internal/update/manager/render-instruction-processor.h>
31 #include <dali/public-api/math/matrix.h>
32 #include <dali/public-api/math/vector4.h>
33 #include <dali/public-api/rendering/texture-set.h>
45 class SceneController;
47 class NodeDataProvider;
49 class RenderInstruction; //for relfection effect
50 } // namespace SceneGraph
55 * Renderers are used to render meshes
56 * These objects are used during RenderManager::Render(), so properties modified during
57 * the Update must either be double-buffered, or set via a message added to the RenderQueue.
59 class Renderer : public GlResourceOwner
63 * @brief Struct to encapsulate stencil parameters required for control of the stencil buffer.
65 struct StencilParameters
67 StencilParameters(RenderMode::Type renderMode, StencilFunction::Type stencilFunction, int stencilFunctionMask, int stencilFunctionReference, int stencilMask, StencilOperation::Type stencilOperationOnFail, StencilOperation::Type stencilOperationOnZFail, StencilOperation::Type stencilOperationOnZPass)
68 : stencilFunctionMask(stencilFunctionMask),
69 stencilFunctionReference(stencilFunctionReference),
70 stencilMask(stencilMask),
71 renderMode(renderMode),
72 stencilFunction(stencilFunction),
73 stencilOperationOnFail(stencilOperationOnFail),
74 stencilOperationOnZFail(stencilOperationOnZFail),
75 stencilOperationOnZPass(stencilOperationOnZPass)
79 int stencilFunctionMask; ///< The stencil function mask
80 int stencilFunctionReference; ///< The stencil function reference
81 int stencilMask; ///< The stencil mask
82 RenderMode::Type renderMode : 4; ///< The render mode
83 StencilFunction::Type stencilFunction : 4; ///< The stencil function
84 StencilOperation::Type stencilOperationOnFail : 4; ///< The stencil operation for stencil test fail
85 StencilOperation::Type stencilOperationOnZFail : 4; ///< The stencil operation for depth test fail
86 StencilOperation::Type stencilOperationOnZPass : 4; ///< The stencil operation for depth test pass
90 * @copydoc Dali::Internal::GlResourceOwner::GlContextDestroyed()
92 void GlContextDestroyed() override;
95 * @copydoc Dali::Internal::GlResourceOwner::GlCleanup()
97 void GlCleanup() override;
100 * Create a new renderer instance
101 * @param[in] dataProviders The data providers for the renderer
102 * @param[in] geometry The geometry for the renderer
103 * @param[in] blendingBitmask A bitmask of blending options.
104 * @param[in] blendColor The blend color to pass to GL
105 * @param[in] faceCullingMode The face-culling mode.
106 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
107 * @param[in] depthWriteMode Depth buffer write mode
108 * @param[in] depthTestMode Depth buffer test mode
109 * @param[in] depthFunction Depth function
110 * @param[in] stencilParameters Struct containing all stencil related options
112 static Renderer* New(SceneGraph::RenderDataProvider* dataProviders,
113 Render::Geometry* geometry,
114 uint32_t blendingBitmask,
115 const Vector4& blendColor,
116 FaceCullingMode::Type faceCullingMode,
117 bool preMultipliedAlphaEnabled,
118 DepthWriteMode::Type depthWriteMode,
119 DepthTestMode::Type depthTestMode,
120 DepthFunction::Type depthFunction,
121 StencilParameters& stencilParameters);
125 * @param[in] dataProviders The data providers for the renderer
126 * @param[in] geometry The geometry for the renderer
127 * @param[in] blendingBitmask A bitmask of blending options.
128 * @param[in] blendColor The blend color to pass to GL
129 * @param[in] faceCullingMode The face-culling mode.
130 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
131 * @param[in] depthWriteMode Depth buffer write mode
132 * @param[in] depthTestMode Depth buffer test mode
133 * @param[in] depthFunction Depth function
134 * @param[in] stencilParameters Struct containing all stencil related options
136 Renderer(SceneGraph::RenderDataProvider* dataProviders,
137 Render::Geometry* geometry,
138 uint32_t blendingBitmask,
139 const Vector4& blendColor,
140 FaceCullingMode::Type faceCullingMode,
141 bool preMultipliedAlphaEnabled,
142 DepthWriteMode::Type depthWriteMode,
143 DepthTestMode::Type depthTestMode,
144 DepthFunction::Type depthFunction,
145 StencilParameters& stencilParameters);
148 * Change the geometry used by the renderer
149 * @param[in] geometry The new geometry
151 void SetGeometry(Render::Geometry* geometry);
153 void SetDrawCommands(Dali::DevelRenderer::DrawCommand* pDrawCommands, uint32_t size);
156 * @brief Returns a reference to an array of draw commands
157 * @return Valid array of draw commands (may be empty)
159 const std::vector<Dali::DevelRenderer::DrawCommand>& GetDrawCommands() const
161 return mDrawCommands;
165 * Second-phase construction.
166 * This is called when the renderer is inside render thread
167 * @param[in] context Context used by the renderer
169 void Initialize(Context& context);
174 ~Renderer() override;
177 * Set the face-culling mode.
178 * @param[in] mode The face-culling mode.
180 void SetFaceCullingMode(FaceCullingMode::Type mode);
183 * Set the bitmask for blending options
184 * @param[in] bitmask A bitmask of blending options.
186 void SetBlendingBitMask(uint32_t bitmask);
189 * Set the blend color for blending options
190 * @param[in] blendColor The blend color to pass to GL
192 void SetBlendColor(const Vector4& color);
195 * Set the first element index to draw by the indexed draw
196 * @param[in] firstElement index of first element to draw
198 void SetIndexedDrawFirstElement(uint32_t firstElement);
201 * Set the number of elements to draw by the indexed draw
202 * @param[in] elementsCount number of elements to draw
204 void SetIndexedDrawElementsCount(uint32_t elementsCount);
207 * @brief Set whether the Pre-multiplied Alpha Blending is required
209 * @param[in] preMultipled whether alpha is pre-multiplied.
211 void EnablePreMultipliedAlpha(bool preMultipled);
214 * Sets the depth write mode
215 * @param[in] depthWriteMode The depth write mode
217 void SetDepthWriteMode(DepthWriteMode::Type depthWriteMode);
220 * Query the Renderer's depth write mode
221 * @return The renderer depth write mode
223 DepthWriteMode::Type GetDepthWriteMode() const;
226 * Sets the depth test mode
227 * @param[in] depthTestMode The depth test mode
229 void SetDepthTestMode(DepthTestMode::Type depthTestMode);
232 * Query the Renderer's depth test mode
233 * @return The renderer depth test mode
235 DepthTestMode::Type GetDepthTestMode() const;
238 * Sets the depth function
239 * @param[in] depthFunction The depth function
241 void SetDepthFunction(DepthFunction::Type depthFunction);
244 * Query the Renderer's depth function
245 * @return The renderer depth function
247 DepthFunction::Type GetDepthFunction() const;
250 * Sets the render mode
251 * @param[in] renderMode The render mode
253 void SetRenderMode(RenderMode::Type mode);
256 * Gets the render mode
257 * @return The render mode
259 RenderMode::Type GetRenderMode() const;
262 * Sets the stencil function
263 * @param[in] stencilFunction The stencil function
265 void SetStencilFunction(StencilFunction::Type stencilFunction);
268 * Gets the stencil function
269 * @return The stencil function
271 StencilFunction::Type GetStencilFunction() const;
274 * Sets the stencil function mask
275 * @param[in] stencilFunctionMask The stencil function mask
277 void SetStencilFunctionMask(int stencilFunctionMask);
280 * Gets the stencil function mask
281 * @return The stencil function mask
283 int GetStencilFunctionMask() const;
286 * Sets the stencil function reference
287 * @param[in] stencilFunctionReference The stencil function reference
289 void SetStencilFunctionReference(int stencilFunctionReference);
292 * Gets the stencil function reference
293 * @return The stencil function reference
295 int GetStencilFunctionReference() const;
298 * Sets the stencil mask
299 * @param[in] stencilMask The stencil mask
301 void SetStencilMask(int stencilMask);
304 * Gets the stencil mask
305 * @return The stencil mask
307 int GetStencilMask() const;
310 * Sets the stencil operation for when the stencil test fails
311 * @param[in] stencilOperationOnFail The stencil operation
313 void SetStencilOperationOnFail(StencilOperation::Type stencilOperationOnFail);
316 * Gets the stencil operation for when the stencil test fails
317 * @return The stencil operation
319 StencilOperation::Type GetStencilOperationOnFail() const;
322 * Sets the stencil operation for when the depth test fails
323 * @param[in] stencilOperationOnZFail The stencil operation
325 void SetStencilOperationOnZFail(StencilOperation::Type stencilOperationOnZFail);
328 * Gets the stencil operation for when the depth test fails
329 * @return The stencil operation
331 StencilOperation::Type GetStencilOperationOnZFail() const;
334 * Sets the stencil operation for when the depth test passes
335 * @param[in] stencilOperationOnZPass The stencil operation
337 void SetStencilOperationOnZPass(StencilOperation::Type stencilOperationOnZPass);
340 * Gets the stencil operation for when the depth test passes
341 * @return The stencil operation
343 StencilOperation::Type GetStencilOperationOnZPass() const;
346 * Called to upload during RenderManager::Render().
347 * @param[in] context The context used for uploading
349 void Upload(Context& context);
352 * Called to render during RenderManager::Render().
353 * @param[in] context The context used for rendering
354 * @param[in] bufferIndex The index of the previous update buffer.
355 * @param[in] node The node using this renderer
356 * @param[in] modelViewMatrix The model-view matrix.
357 * @param[in] viewMatrix The view matrix.
358 * @param[in] projectionMatrix The projection matrix.
359 * @param[in] size Size of the render item
360 * @param[in] blend If true, blending is enabled
361 * @param[in] boundTextures The textures bound for rendering
362 * @param[in] instruction. for use case like reflection where CullFace needs to be adjusted
365 void Render(Context& context,
366 BufferIndex bufferIndex,
367 const SceneGraph::NodeDataProvider& node,
368 const Matrix& modelMatrix,
369 const Matrix& modelViewMatrix,
370 const Matrix& viewMatrix,
371 const Matrix& projectionMatrix,
374 Vector<GLuint>& boundTextures,
375 const Dali::Internal::SceneGraph::RenderInstruction& instruction,
376 uint32_t queueIndex);
379 * Write the renderer's sort attributes to the passed in reference
381 * @param[in] bufferIndex The current update buffer index.
382 * @param[out] sortAttributes
384 void SetSortAttributes(BufferIndex bufferIndex, SceneGraph::RenderInstructionProcessor::SortAttributes& sortAttributes) const;
387 * Sets the flag indicating whether shader changed.
389 * @param[in] value True if shader changed
391 void SetShaderChanged(bool value);
394 * Check if the renderer attributes/uniforms are updated and returns the flag
396 * @param[in] bufferIndex The current update buffer index.
397 * @param[in] node The node using this renderer
399 bool Updated(BufferIndex bufferIndex, const SceneGraph::NodeDataProvider* node);
402 struct UniformIndexMap;
405 Renderer(const Renderer&);
408 Renderer& operator=(const Renderer& rhs);
411 * Sets blending options
412 * @param context to use
413 * @param blend Wheter blending should be enabled or not
415 void SetBlending(Context& context, bool blend);
418 * Set the uniforms from properties according to the uniform map
419 * @param[in] bufferIndex The index of the previous update buffer.
420 * @param[in] node The node using the renderer
421 * @param[in] size The size of the renderer
422 * @param[in] program The shader program on which to set the uniforms.
424 void SetUniforms(BufferIndex bufferIndex, const SceneGraph::NodeDataProvider& node, const Vector3& size, Program& program);
427 * Set the program uniform in the map from the mapped property
428 * @param[in] bufferIndex The index of the previous update buffer.
429 * @param[in] program The shader program
430 * @param[in] map The uniform
432 void SetUniformFromProperty(BufferIndex bufferIndex, Program& program, UniformIndexMap& map);
435 * Bind the textures and setup the samplers
436 * @param[in] context The GL context
437 * @param[in] program The shader program
438 * @param[in] boundTextures The textures bound for rendering
439 * @return False if create or bind failed, true if success.
441 bool BindTextures(Context& context, Program& program, Vector<GLuint>& boundTextures);
444 OwnerPointer<SceneGraph::RenderDataProvider> mRenderDataProvider;
447 Render::Geometry* mGeometry;
449 struct UniformIndexMap
451 uint32_t uniformIndex; ///< The index of the cached location in the Program
452 const PropertyInputImpl* propertyValue;
455 using UniformIndexMappings = Dali::Vector<UniformIndexMap>;
457 UniformIndexMappings mUniformIndexMap;
458 Vector<GLint> mAttributesLocation;
460 uint64_t mUniformsHash;
462 StencilParameters mStencilParameters; ///< Struct containing all stencil related options
463 BlendingOptions mBlendingOptions; ///< Blending options including blend color, blend func and blend equation
465 uint32_t mIndexedDrawFirstElement; ///< Offset of first element to draw
466 uint32_t mIndexedDrawElementsCount; ///< Number of elements to draw
468 DepthFunction::Type mDepthFunction : 4; ///< The depth function
469 FaceCullingMode::Type mFaceCullingMode : 3; ///< The mode of face culling
470 DepthWriteMode::Type mDepthWriteMode : 3; ///< The depth write mode
471 DepthTestMode::Type mDepthTestMode : 3; ///< The depth test mode
472 bool mUpdateAttributesLocation : 1; ///< Indicates attribute locations have changed
473 bool mPremultipledAlphaEnabled : 1; ///< Flag indicating whether the Pre-multiplied Alpha Blending is required
474 bool mShaderChanged : 1; ///< Flag indicating the shader changed and uniform maps have to be updated
477 std::vector<Dali::DevelRenderer::DrawCommand> mDrawCommands; // Devel stuff
480 } // namespace Render
482 } // namespace Internal
486 #endif // DALI_INTERNAL_RENDER_RENDERER_H