1 #ifndef DALI_INTERNAL_RENDER_RENDERER_H
2 #define DALI_INTERNAL_RENDER_RENDERER_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/vector4.h>
24 #include <dali/public-api/rendering/texture-set.h>
25 #include <dali/internal/common/blending-options.h>
26 #include <dali/internal/common/message.h>
27 #include <dali/internal/common/type-abstraction-enums.h>
28 #include <dali/internal/event/common/property-input-impl.h>
29 #include <dali/internal/event/effects/shader-declarations.h>
30 #include <dali/internal/render/data-providers/render-data-provider.h>
31 #include <dali/internal/render/gl-resources/gl-resource-owner.h>
32 #include <dali/internal/render/renderers/render-geometry.h>
33 #include <dali/internal/update/manager/prepare-render-instructions.h>
34 #include <dali/integration-api/debug.h>
47 class SceneController;
50 class NodeDataProvider;
56 class UniformNameCache;
59 * Renderers are used to render meshes
60 * These objects are used during RenderManager::Render(), so properties modified during
61 * the Update must either be double-buffered, or set via a message added to the RenderQueue.
63 class Renderer : public GlResourceOwner
68 * @brief Struct to encapsulate stencil parameters required for control of the stencil buffer.
70 struct StencilParameters
72 StencilParameters( StencilMode::Type stencilMode, StencilFunction::Type stencilFunction, int stencilFunctionMask,
73 int stencilFunctionReference, int stencilMask, StencilOperation::Type stencilOperationOnFail,
74 StencilOperation::Type stencilOperationOnZFail, StencilOperation::Type stencilOperationOnZPass )
75 : stencilFunctionMask ( stencilFunctionMask ),
76 stencilFunctionReference ( stencilFunctionReference ),
77 stencilMask ( stencilMask ),
78 stencilFunction ( stencilFunction ),
79 stencilOperationOnFail ( stencilOperationOnFail ),
80 stencilOperationOnZFail ( stencilOperationOnZFail ),
81 stencilOperationOnZPass ( stencilOperationOnZPass ),
82 stencilMode ( stencilMode )
86 int stencilFunctionMask; ///< The stencil function mask
87 int stencilFunctionReference; ///< The stencil function reference
88 int stencilMask; ///< The stencil mask
89 StencilFunction::Type stencilFunction:3; ///< The stencil function
90 StencilOperation::Type stencilOperationOnFail:3; ///< The stencil operation for stencil test fail
91 StencilOperation::Type stencilOperationOnZFail:3; ///< The stencil operation for depth test fail
92 StencilOperation::Type stencilOperationOnZPass:3; ///< The stencil operation for depth test pass
93 StencilMode::Type stencilMode:2; ///< The stencil mode
97 * @copydoc Dali::Internal::GlResourceOwner::GlContextDestroyed()
99 void GlContextDestroyed();
102 * @copydoc Dali::Internal::GlResourceOwner::GlCleanup()
107 * Create a new renderer instance
108 * @param[in] dataProviders The data providers for the renderer
109 * @param[in] geometry The geometry for the renderer
110 * @param[in] blendingBitmask A bitmask of blending options.
111 * @param[in] blendColor The blend color to pass to GL
112 * @param[in] faceCullingMode The face-culling mode.
113 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
114 * @param[in] depthWriteMode Depth buffer write mode
115 * @param[in] depthTestMode Depth buffer test mode
116 * @param[in] depthFunction Depth function
117 * @param[in] stencilParameters Struct containing all stencil related options
118 * @param[in] writeToColorBuffer Set to True to write to the color buffer
120 static Renderer* New( SceneGraph::RenderDataProvider* dataProviders,
121 Render::Geometry* geometry,
122 unsigned int blendingBitmask,
123 const Vector4* blendColor,
124 FaceCullingMode::Type faceCullingMode,
125 bool preMultipliedAlphaEnabled,
126 DepthWriteMode::Type depthWriteMode,
127 DepthTestMode::Type depthTestMode,
128 DepthFunction::Type depthFunction,
129 StencilParameters& stencilParameters,
130 bool writeToColorBuffer );
134 * @param[in] dataProviders The data providers for the renderer
135 * @param[in] geometry The geometry for the renderer
136 * @param[in] blendingBitmask A bitmask of blending options.
137 * @param[in] blendColor The blend color to pass to GL
138 * @param[in] faceCullingMode The face-culling mode.
139 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
140 * @param[in] depthWriteMode Depth buffer write mode
141 * @param[in] depthTestMode Depth buffer test mode
142 * @param[in] depthFunction Depth function
143 * @param[in] stencilParameters Struct containing all stencil related options
144 * @param[in] writeToColorBuffer Set to True to write to the color buffer
146 Renderer( SceneGraph::RenderDataProvider* dataProviders,
147 Render::Geometry* geometry,
148 unsigned int blendingBitmask,
149 const Vector4* blendColor,
150 FaceCullingMode::Type faceCullingMode,
151 bool preMultipliedAlphaEnabled,
152 DepthWriteMode::Type depthWriteMode,
153 DepthTestMode::Type depthTestMode,
154 DepthFunction::Type depthFunction,
155 StencilParameters& stencilParameters,
156 bool writeToColorBuffer );
159 * Change the data providers of the renderer
160 * @param[in] dataProviders The data providers
162 void SetRenderDataProvider( SceneGraph::RenderDataProvider* dataProviders );
165 * Change the geometry used by the renderer
166 * @param[in] geometry The new geometry
168 void SetGeometry( Render::Geometry* geometry );
171 * Retrieves the geometry used by the renderer
172 * @return The geometry used by the renderer
174 Render::Geometry* GetGeometry() const
180 * Second-phase construction.
181 * This is called when the renderer is inside render thread
182 * @param[in] context Context used by the renderer
183 * @param[in] textureCache The texture cache to use
184 * @param[in] uniformNameCache Cache of uniform names to use
186 void Initialize( Context& context, SceneGraph::TextureCache& textureCache, Render::UniformNameCache& uniformNameCache );
194 * Set the face-culling mode.
195 * @param[in] mode The face-culling mode.
197 void SetFaceCullingMode( FaceCullingMode::Type mode );
200 * Set the bitmask for blending options
201 * @param[in] bitmask A bitmask of blending options.
203 void SetBlendingBitMask( unsigned int bitmask );
206 * Set the blend color for blending options
207 * @param[in] blendColor The blend color to pass to GL
209 void SetBlendColor( const Vector4* color );
212 * Set the first element index to draw by the indexed draw
213 * @param[in] firstElement index of first element to draw
215 void SetIndexedDrawFirstElement( size_t firstElement );
218 * Set the number of elements to draw by the indexed draw
219 * @param[in] elementsCount number of elements to draw
221 void SetIndexedDrawElementsCount( size_t elementsCount );
224 * @brief Set whether the Pre-multiplied Alpha Blending is required
226 * @param[in] preMultipled whether alpha is pre-multiplied.
228 void EnablePreMultipliedAlpha( bool preMultipled );
231 * Sets the depth write mode
232 * @param[in] depthWriteMode The depth write mode
234 void SetDepthWriteMode( DepthWriteMode::Type depthWriteMode );
237 * Query the Renderer's depth write mode
238 * @return The renderer depth write mode
240 DepthWriteMode::Type GetDepthWriteMode() const;
243 * Sets the depth test mode
244 * @param[in] depthTestMode The depth test mode
246 void SetDepthTestMode( DepthTestMode::Type depthTestMode );
249 * Query the Renderer's depth test mode
250 * @return The renderer depth test mode
252 DepthTestMode::Type GetDepthTestMode() const;
255 * Sets the depth function
256 * @param[in] depthFunction The depth function
258 void SetDepthFunction( DepthFunction::Type depthFunction );
261 * Query the Renderer's depth function
262 * @return The renderer depth function
264 DepthFunction::Type GetDepthFunction() const;
267 * Sets the stencil mode
268 * @param[in] stencilMode The stencil function
270 void SetStencilMode( StencilMode::Type stencilMode );
273 * Gets the stencil mode
274 * @return The stencil function
276 StencilMode::Type GetStencilMode() const;
279 * Sets the stencil function
280 * @param[in] stencilFunction The stencil function
282 void SetStencilFunction( StencilFunction::Type stencilFunction );
285 * Gets the stencil function
286 * @return The stencil function
288 StencilFunction::Type GetStencilFunction() const;
291 * Sets the stencil function mask
292 * @param[in] stencilFunctionMask The stencil function mask
294 void SetStencilFunctionMask( int stencilFunctionMask );
297 * Gets the stencil function mask
298 * @return The stencil function mask
300 int GetStencilFunctionMask() const;
303 * Sets the stencil function reference
304 * @param[in] stencilFunctionReference The stencil function reference
306 void SetStencilFunctionReference( int stencilFunctionReference );
309 * Gets the stencil function reference
310 * @return The stencil function reference
312 int GetStencilFunctionReference() const;
315 * Sets the stencil mask
316 * @param[in] stencilMask The stencil mask
318 void SetStencilMask( int stencilMask );
321 * Gets the stencil mask
322 * @return The stencil mask
324 int GetStencilMask() const;
327 * Sets the stencil operation for when the stencil test fails
328 * @param[in] stencilOperationOnFail The stencil operation
330 void SetStencilOperationOnFail( StencilOperation::Type stencilOperationOnFail );
333 * Gets the stencil operation for when the stencil test fails
334 * @return The stencil operation
336 StencilOperation::Type GetStencilOperationOnFail() const;
339 * Sets the stencil operation for when the depth test fails
340 * @param[in] stencilOperationOnZFail The stencil operation
342 void SetStencilOperationOnZFail( StencilOperation::Type stencilOperationOnZFail );
345 * Gets the stencil operation for when the depth test fails
346 * @return The stencil operation
348 StencilOperation::Type GetStencilOperationOnZFail() const;
351 * Sets the stencil operation for when the depth test passes
352 * @param[in] stencilOperationOnZPass The stencil operation
354 void SetStencilOperationOnZPass( StencilOperation::Type stencilOperationOnZPass );
357 * Gets the stencil operation for when the depth test passes
358 * @return The stencil operation
360 StencilOperation::Type GetStencilOperationOnZPass() const;
363 * Sets whether or not to write to the color buffer
364 * @param[in] writeToColorBuffer True to write to the color buffer
366 void SetWriteToColorBuffer( bool writeToColorBuffer );
369 * Gets whether or not to write to the color buffer
370 * @return True to write to the color buffer
372 bool GetWriteToColorBuffer() const;
375 * Sets batching mode on the renderer
376 * @param[in] batchingEnabled batching state
378 void SetBatchingEnabled( bool batchingEnabled );
381 * Called to render during RenderManager::Render().
382 * @param[in] context The context used for rendering
383 * @param[in] textureCache The texture cache used to get textures
384 * @param[in] bufferIndex The index of the previous update buffer.
385 * @param[in] node The node using this renderer
386 * @param[in] defaultShader in case there is no custom shader
387 * @param[in] modelViewMatrix The model-view matrix.
388 * @param[in] viewMatrix The view matrix.
389 * @param[in] projectionMatrix The projection matrix.
390 * @param[in] size Size of the render item
391 * @param[in] externalGeometry Optional external geometry, if set the original geometry is ignored. If NULL, original geometry will be drawn as normal.
392 * @param[in] blend If true, blending is enabled
394 void Render( Context& context,
395 SceneGraph::TextureCache& textureCache,
396 BufferIndex bufferIndex,
397 const SceneGraph::NodeDataProvider& node,
398 SceneGraph::Shader& defaultShader,
399 const Matrix& modelMatrix,
400 const Matrix& modelViewMatrix,
401 const Matrix& viewMatrix,
402 const Matrix& projectionMatrix,
404 Render::Geometry* externalGeometry,
408 * Write the renderer's sort attributes to the passed in reference
410 * @param[in] bufferIndex The current update buffer index.
411 * @param[out] sortAttributes
413 void SetSortAttributes( BufferIndex bufferIndex, SceneGraph::RendererWithSortAttributes& sortAttributes ) const;
417 struct UniformIndexMap;
420 Renderer( const Renderer& );
423 Renderer& operator=( const Renderer& rhs );
426 * Sets blending options
427 * @param context to use
428 * @param blend Wheter blending should be enabled or not
430 void SetBlending( Context& context, bool blend );
433 * Set the uniforms from properties according to the uniform map
434 * @param[in] bufferIndex The index of the previous update buffer.
435 * @param[in] node The node using the renderer
436 * @param[in] size The size of the renderer
437 * @param[in] program The shader program on which to set the uniforms.
439 void SetUniforms( BufferIndex bufferIndex, const SceneGraph::NodeDataProvider& node, const Vector3& size, Program& program );
442 * Set the program uniform in the map from the mapped property
443 * @param[in] bufferIndex The index of the previous update buffer.
444 * @param[in] program The shader program
445 * @param[in] map The uniform
447 void SetUniformFromProperty( BufferIndex bufferIndex, Program& program, UniformIndexMap& map );
450 * Bind the textures and setup the samplers
451 * @param[in] context The GL context
452 * @param[in] textureCache The texture cache
453 * @param[in] program The shader program
454 * @return False if create or bind failed, true if success.
456 bool BindTextures( Context& context, SceneGraph::TextureCache& textureCache, Program& program );
460 OwnerPointer< SceneGraph::RenderDataProvider > mRenderDataProvider;
463 SceneGraph::TextureCache* mTextureCache;
464 Render::UniformNameCache* mUniformNameCache;
465 Render::Geometry* mGeometry;
467 struct UniformIndexMap
469 unsigned int uniformIndex; ///< The index of the cached location in the Program
470 const PropertyInputImpl* propertyValue;
473 typedef Dali::Vector< UniformIndexMap > UniformIndexMappings;
474 UniformIndexMappings mUniformIndexMap;
475 Vector<GLint> mAttributesLocation;
477 StencilParameters mStencilParameters; ///< Struct containing all stencil related options
478 BlendingOptions mBlendingOptions; ///< Blending options including blend color, blend func and blend equation
480 size_t mIndexedDrawFirstElement; ///< Offset of first element to draw
481 size_t mIndexedDrawElementsCount; ///< Number of elements to draw
483 DepthFunction::Type mDepthFunction:3; ///< The depth function
484 FaceCullingMode::Type mFaceCullingMode:2; ///< The mode of face culling
485 BlendMode::Type mBlendMode:2; ///< The mode of blending
486 DepthWriteMode::Type mDepthWriteMode:2; ///< The depth write mode
487 DepthTestMode::Type mDepthTestMode:2; ///< The depth test mode
488 bool mWriteToColorBuffer:1; ///< True if we are writing to the color buffer
489 bool mUpdateAttributesLocation:1; ///< Indicates attribute locations have changed
490 bool mPremultipledAlphaEnabled:1; ///< Flag indicating whether the Pre-multiplied Alpha Blending is required
491 bool mBatchingEnabled:1; ///< Flag indicating if the renderer is batchable
494 } // namespace SceneGraph
496 } // namespace Internal
500 #endif // DALI_INTERNAL_RENDER_RENDERER_H