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/material.h>
25 #include <dali/internal/common/blending-options.h>
26 #include <dali/internal/common/message.h>
27 #include <dali/internal/event/effects/shader-declarations.h>
28 #include <dali/internal/render/gl-resources/gl-resource-owner.h>
29 #include <dali/integration-api/debug.h>
30 #include <dali/internal/common/type-abstraction-enums.h>
31 #include <dali/internal/update/manager/prepare-render-instructions.h>
32 #include <dali/internal/render/renderers/render-geometry.h>
45 class SceneController;
48 class NodeDataProvider;
54 class UniformNameCache;
57 * Renderers are used to render meshes
58 * These objects are used during RenderManager::Render(), so properties modified during
59 * the Update must either be double-buffered, or set via a message added to the RenderQueue.
61 class Renderer : public GlResourceOwner
66 * @copydoc Dali::Internal::GlResourceOwner::GlContextDestroyed()
68 void GlContextDestroyed();
71 * @copydoc Dali::Internal::GlResourceOwner::GlCleanup()
76 * Create a new renderer instance
77 * @param[in] dataProviders The data providers for the renderer
78 * @param[in] renderGeometry The geometry for the renderer
79 * @param[in] blendingBitmask A bitmask of blending options.
80 * @param[in] blendColor The blend color to pass to GL
81 * @param[in] faceCullingMode The face-culling mode.
82 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
84 static Renderer* New( SceneGraph::RenderDataProvider* dataProviders,
85 SceneGraph::RenderGeometry* renderGeometry,
86 unsigned int blendingBitmask,
87 const Vector4* blendColor,
88 Dali::Renderer::FaceCullingMode faceCullingMode,
89 bool preMultipliedAlphaEnabled);
93 * @param[in] dataProviders The data providers for the renderer
94 * @param[in] renderGeometry The geometry for the renderer
95 * @param[in] blendingBitmask A bitmask of blending options.
96 * @param[in] blendColor The blend color to pass to GL
97 * @param[in] faceCullingMode The face-culling mode.
98 * @param[in] preMultipliedAlphaEnabled whether alpha is pre-multiplied.
100 Renderer( SceneGraph::RenderDataProvider* dataProviders,
101 SceneGraph::RenderGeometry* renderGeometry,
102 unsigned int blendingBitmask,
103 const Vector4* blendColor,
104 Dali::Renderer::FaceCullingMode faceCullingMode,
105 bool preMultipliedAlphaEnabled);
108 * Change the data providers of the renderer
109 * @param[in] dataProviders The data providers
111 void SetRenderDataProvider( SceneGraph::RenderDataProvider* dataProviders );
114 * Change the geometry used by the renderer
115 * @param[in] renderGeometry The new geometry
117 void SetGeometry( SceneGraph::RenderGeometry* renderGeometry );
119 * Second-phase construction.
120 * This is called when the renderer is inside render thread
121 * @param[in] context to use
122 * @param[in] textureCache to use
123 * @param[in] uniformNameCache to use
125 void Initialize( Context& context, SceneGraph::TextureCache& textureCache, Render::UniformNameCache& uniformNameCache );
133 * Set the face-culling mode.
134 * @param[in] mode The face-culling mode.
136 void SetFaceCullingMode( Dali::Renderer::FaceCullingMode mode );
139 * Set the bitmask for blending options
140 * @param[in] bitmask A bitmask of blending options.
142 void SetBlendingBitMask( unsigned int bitmask );
145 * Set the blend color for blending options
146 * @param[in] blendColor The blend color to pass to GL
148 void SetBlendColor( const Vector4* color );
151 * @brief Set whether the Pre-multiplied Alpha Blending is required
153 * @param[in] preMultipled whether alpha is pre-multiplied.
155 void EnablePreMultipliedAlpha( bool preMultipled );
158 * Set the sampler used to render the set texture.
159 * @param[in] samplerBitfield The packed sampler options used to render.
161 void SetSampler( unsigned int samplerBitfield );
164 * Query whether the derived type of Renderer requires depth testing.
165 * @return True if the renderer requires depth testing.
167 bool RequiresDepthTest() const;
170 * Called to render during RenderManager::Render().
171 * @param[in] context The context used for rendering
172 * @param[in] textureCache The texture cache used to get textures
173 * @param[in] bufferIndex The index of the previous update buffer.
174 * @param[in] node The node using this renderer
175 * @param[in] defaultShader in case there is no custom shader
176 * @param[in] modelViewMatrix The model-view matrix.
177 * @param[in] viewMatrix The view matrix.
178 * @param[in] projectionMatrix The projection matrix.
180 void Render( Context& context,
181 SceneGraph::TextureCache& textureCache,
182 BufferIndex bufferIndex,
183 const SceneGraph::NodeDataProvider& node,
184 SceneGraph::Shader& defaultShader,
185 const Matrix& modelViewMatrix,
186 const Matrix& viewMatrix,
187 const Matrix& projectionMatrix,
191 * Write the renderer's sort attributes to the passed in reference
193 * @param[in] bufferIndex The current update buffer index.
194 * @param[out] sortAttributes
196 void SetSortAttributes( BufferIndex bufferIndex, SceneGraph::RendererWithSortAttributes& sortAttributes ) const;
200 struct UniformIndexMap;
203 Renderer( const Renderer& );
206 Renderer& operator=( const Renderer& rhs );
209 * Sets blending options
210 * @param context to use
211 * @param blend Wheter blending should be enabled or not
213 void SetBlending( Context& context, bool blend );
216 * Set the uniforms from properties according to the uniform map
217 * @param[in] node The node using the renderer
218 * @param[in] program The shader program on which to set the uniforms.
220 void SetUniforms( BufferIndex bufferIndex, const SceneGraph::NodeDataProvider& node, Program& program );
223 * Set the program uniform in the map from the mapped property
225 void SetUniformFromProperty( BufferIndex bufferIndex, Program& program, UniformIndexMap& map );
228 * Bind the material textures in the samplers and setup the samplers
229 * @param[in] textureCache The texture cache
230 * @param[in] program The shader program
232 void BindTextures( SceneGraph::TextureCache& textureCache, Program& program );
236 OwnerPointer< SceneGraph::RenderDataProvider > mRenderDataProvider;
241 SceneGraph::TextureCache* mTextureCache;
242 Render::UniformNameCache* mUniformNameCache;
243 SceneGraph::RenderGeometry* mRenderGeometry;
245 struct UniformIndexMap
247 unsigned int uniformIndex; // The index of the cached location in the Program
248 const PropertyInputImpl* propertyValue;
251 typedef Dali::Vector< UniformIndexMap > UniformIndexMappings;
252 UniformIndexMappings mUniformIndexMap;
254 Vector<GLint> mAttributesLocation;
256 BlendingOptions mBlendingOptions; /// Blending options including blend color, blend func and blend equation
257 Dali::Renderer::FaceCullingMode mFaceCullingMode; /// Mode of face culling
259 unsigned int mSamplerBitfield; ///< Sampler options used for texture filtering
260 bool mUpdateAttributesLocation:1; ///< Indicates attribute locations have changed
261 bool mPremultipledAlphaEnabled:1; ///< Flag indicating whether the Pre-multiplied Alpha Blending is required
264 } // namespace SceneGraph
266 } // namespace Internal
270 #endif // __DALI_INTERNAL_RENDER_RENDERER_H__