1 #ifndef __DALI_INTERNAL_RENDER_RENDERER_H__
2 #define __DALI_INTERNAL_RENDER_RENDERER_H__
5 * Copyright (c) 2015 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/devel-api/rendering/texture-set.h>
25 #include <dali/internal/common/blending-options.h>
26 #include <dali/internal/common/message.h>
27 #include <dali/internal/event/common/property-input-impl.h>
28 #include <dali/internal/event/effects/shader-declarations.h>
29 #include <dali/internal/render/gl-resources/gl-resource-owner.h>
30 #include <dali/integration-api/debug.h>
31 #include <dali/internal/common/type-abstraction-enums.h>
32 #include <dali/internal/update/manager/prepare-render-instructions.h>
33 #include <dali/internal/render/data-providers/render-data-provider.h>
34 #include <dali/internal/render/renderers/render-geometry.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 * @copydoc Dali::Internal::GlResourceOwner::GlContextDestroyed()
70 void GlContextDestroyed();
73 * @copydoc Dali::Internal::GlResourceOwner::GlCleanup()
78 * Create a new renderer instance
79 * @param[in] dataProviders The data providers for the renderer
80 * @param[in] geometry The geometry for the renderer
81 * @param[in] blendingBitmask A bitmask of blending options.
82 * @param[in] blendColor The blend color to pass to GL
83 * @param[in] faceCullingMode The face-culling mode.
84 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
86 static Renderer* New( SceneGraph::RenderDataProvider* dataProviders,
87 Render::Geometry* geometry,
88 unsigned int blendingBitmask,
89 const Vector4* blendColor,
90 Dali::Renderer::FaceCullingMode faceCullingMode,
91 bool preMultipliedAlphaEnabled);
95 * @param[in] dataProviders The data providers for the renderer
96 * @param[in] geometry The geometry for the renderer
97 * @param[in] blendingBitmask A bitmask of blending options.
98 * @param[in] blendColor The blend color to pass to GL
99 * @param[in] faceCullingMode The face-culling mode.
100 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
102 Renderer( SceneGraph::RenderDataProvider* dataProviders,
103 Render::Geometry* geometry,
104 unsigned int blendingBitmask,
105 const Vector4* blendColor,
106 Dali::Renderer::FaceCullingMode faceCullingMode,
107 bool preMultipliedAlphaEnabled);
110 * Change the data providers of the renderer
111 * @param[in] dataProviders The data providers
113 void SetRenderDataProvider( SceneGraph::RenderDataProvider* dataProviders );
116 * Change the geometry used by the renderer
117 * @param[in] geometry The new geometry
119 void SetGeometry( Render::Geometry* geometry );
121 * Second-phase construction.
122 * This is called when the renderer is inside render thread
123 * @param[in] context to use
124 * @param[in] textureCache to use
125 * @param[in] uniformNameCache to use
127 void Initialize( Context& context, SceneGraph::TextureCache& textureCache, Render::UniformNameCache& uniformNameCache );
135 * Set the face-culling mode.
136 * @param[in] mode The face-culling mode.
138 void SetFaceCullingMode( Dali::Renderer::FaceCullingMode mode );
141 * Set the bitmask for blending options
142 * @param[in] bitmask A bitmask of blending options.
144 void SetBlendingBitMask( unsigned int bitmask );
147 * Set the blend color for blending options
148 * @param[in] blendColor The blend color to pass to GL
150 void SetBlendColor( const Vector4* color );
153 * Set the first element index to draw by the indexed draw
154 * @param[in] firstElement index of first element to draw
156 void SetIndexedDrawFirstElement( size_t firstElement );
159 * Set the number of elements to draw by the indexed draw
160 * @param[in] elementsCount number of elements to draw
162 void SetIndexedDrawElementsCount( size_t elementsCount );
165 * @brief Set whether the Pre-multiplied Alpha Blending is required
167 * @param[in] preMultipled whether alpha is pre-multiplied.
169 void EnablePreMultipliedAlpha( bool preMultipled );
172 * Set the sampler used to render the set texture.
173 * @param[in] samplerBitfield The packed sampler options used to render.
175 void SetSampler( unsigned int samplerBitfield );
178 * Query whether the derived type of Renderer requires depth testing.
179 * @return True if the renderer requires depth testing.
181 bool RequiresDepthTest() const;
184 * Called to render during RenderManager::Render().
185 * @param[in] context The context used for rendering
186 * @param[in] textureCache The texture cache used to get textures
187 * @param[in] bufferIndex The index of the previous update buffer.
188 * @param[in] node The node using this renderer
189 * @param[in] defaultShader in case there is no custom shader
190 * @param[in] modelViewMatrix The model-view matrix.
191 * @param[in] viewMatrix The view matrix.
192 * @param[in] projectionMatrix The projection matrix.
194 void Render( Context& context,
195 SceneGraph::TextureCache& textureCache,
196 BufferIndex bufferIndex,
197 const SceneGraph::NodeDataProvider& node,
198 SceneGraph::Shader& defaultShader,
199 const Matrix& modelViewMatrix,
200 const Matrix& viewMatrix,
201 const Matrix& projectionMatrix,
206 * Write the renderer's sort attributes to the passed in reference
208 * @param[in] bufferIndex The current update buffer index.
209 * @param[out] sortAttributes
211 void SetSortAttributes( BufferIndex bufferIndex, SceneGraph::RendererWithSortAttributes& sortAttributes ) const;
215 struct UniformIndexMap;
218 Renderer( const Renderer& );
221 Renderer& operator=( const Renderer& rhs );
224 * Sets blending options
225 * @param context to use
226 * @param blend Wheter blending should be enabled or not
228 void SetBlending( Context& context, bool blend );
231 * Set the uniforms from properties according to the uniform map
232 * @param[in] bufferIndex The index of the previous update buffer.
233 * @param[in] node The node using the renderer
234 * @param[in] size The size of the renderer
235 * @param[in] program The shader program on which to set the uniforms.
237 void SetUniforms( BufferIndex bufferIndex, const SceneGraph::NodeDataProvider& node, const Vector3& size, Program& program );
240 * Set the program uniform in the map from the mapped property
242 void SetUniformFromProperty( BufferIndex bufferIndex, Program& program, UniformIndexMap& map );
245 * Bind the textures and setup the samplers
246 * @param[in] textureCache The texture cache
247 * @param[in] program The shader program
248 * @return False if create or bind failed, true if success.
250 bool BindTextures( SceneGraph::TextureCache& textureCache, Program& program );
254 OwnerPointer< SceneGraph::RenderDataProvider > mRenderDataProvider;
259 SceneGraph::TextureCache* mTextureCache;
260 Render::UniformNameCache* mUniformNameCache;
261 Render::Geometry* mGeometry;
263 struct UniformIndexMap
265 unsigned int uniformIndex; // The index of the cached location in the Program
266 const PropertyInputImpl* propertyValue;
269 typedef Dali::Vector< UniformIndexMap > UniformIndexMappings;
270 UniformIndexMappings mUniformIndexMap;
272 Vector<GLint> mAttributesLocation;
274 BlendingOptions mBlendingOptions; /// Blending options including blend color, blend func and blend equation
275 Dali::Renderer::FaceCullingMode mFaceCullingMode; /// Mode of face culling
277 size_t mIndexedDrawFirstElement; /// Offset of first element to draw
278 size_t mIndexedDrawElementsCount; /// Number of elements to draw
280 unsigned int mSamplerBitfield; ///< Sampler options used for texture filtering
281 bool mUpdateAttributesLocation:1; ///< Indicates attribute locations have changed
282 bool mPremultipledAlphaEnabled:1; ///< Flag indicating whether the Pre-multiplied Alpha Blending is required
285 } // namespace SceneGraph
287 } // namespace Internal
291 #endif // __DALI_INTERNAL_RENDER_RENDERER_H__