1 #ifndef DALI_RENDERER_H
2 #define DALI_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/actors/blending.h> // Dali::BlendingMode, Dali::BlendingEquation, Dali::BlendingFactor
23 #include <dali/public-api/object/handle.h> // Dali::Handle
24 #include <dali/public-api/object/property-index-ranges.h> // DEFAULT_OBJECT_PROPERTY_START_INDEX
25 #include <dali/devel-api/rendering/geometry.h> // Dali::Geometry
26 #include <dali/devel-api/rendering/texture-set.h> // Dali::TextureSet
31 namespace Internal DALI_INTERNAL
37 * @brief Renderer is a handle to an object used to show content by combining a Geometry, a TextureSet and a shader
39 class DALI_IMPORT_API Renderer : public Handle
44 * @brief Set face culling mode.
48 NONE, ///< None of the faces should be culled
49 CULL_FRONT, ///< Cull front face, back face should never be shown
50 CULL_BACK, ///< Cull back face, back face should never be shown
51 CULL_BACK_AND_FRONT, ///< Cull back and front faces, if the geometry is composed of triangles none of the faces will be shown
55 * @brief An enumeration of properties belonging to the Renderer class.
61 DEPTH_INDEX = DEFAULT_OBJECT_PROPERTY_START_INDEX, ///< name "depthIndex", type INTEGER
62 FACE_CULLING_MODE, ///< name "faceCullingMode", type INTEGER
63 BLENDING_MODE, ///< name "blendingMode", type INTEGER
64 BLEND_EQUATION_RGB, ///< name "blendEquationRgb", type INTEGER
65 BLEND_EQUATION_ALPHA, ///< name "blendEquationAlpha", type INTEGER
66 BLENDING_SRC_FACTOR_RGB, ///< name "sourceBlendFactorRgb", type INTEGER
67 BLENDING_DEST_FACTOR_RGB, ///< name "destinationBlendFactorRgb", type INTEGER
68 BLENDING_SRC_FACTOR_ALPHA, ///< name "sourceBlendFactorAlpha", type INTEGER
69 BLENDING_DEST_FACTOR_ALPHA, ///< name "destinationBlendFactorAlpha", type INTEGER
70 BLENDING_COLOR, ///< name "blendingColor", type VECTOR4
71 BLEND_PRE_MULTIPLIED_ALPHA, ///< name "blendPreMultipledAlpha", type BOOLEAN
72 INDEX_RANGE_FIRST, ///< name "indexRangeFirst", type INTEGER
73 INDEX_RANGE_COUNT ///< name "indexRangeCount", type INTEGER
78 * @brief Creates a new Renderer object
80 * @param[in] geometry Geometry to be used by this renderer
81 * @param[in] shader Shader to be used by this renderer
83 static Renderer New( Geometry& geometry, Shader& shader );
86 * @brief Default constructor, creates an empty handle
96 * @brief Copy constructor, creates a new handle to the same object
98 * @param[in] handle Handle to an object
100 Renderer( const Renderer& handle );
103 * @brief Downcast to a renderer handle.
105 * If not a renderer the returned renderer handle is left uninitialized.
106 * @param[in] handle to an object
107 * @return renderer handle or an uninitialized handle
109 static Renderer DownCast( BaseHandle handle );
112 * @brief Assignment operator, changes this handle to point at the same object
114 * @param[in] handle Handle to an object
115 * @return Reference to the assigned object
117 Renderer& operator=( const Renderer& handle );
120 * @brief Sets the geometry to be used by this renderer
122 * @param[in] geometry The geometry to be used by this renderer
124 void SetGeometry( Geometry& geometry );
127 * @brief Gets the geometry used by this renderer
129 * @return The geometry used by the renderer
131 Geometry GetGeometry() const;
134 * @brief Sets effective range of indices to draw from bound index buffer
135 * @param [in] firstElement first element to draw
136 * @param [in] elementsCount number of elements to draw
138 inline void SetIndexRange( int firstElement, int elementsCount )
140 SetProperty( Property::INDEX_RANGE_FIRST, firstElement );
141 SetProperty( Property::INDEX_RANGE_COUNT, elementsCount );
145 * @brief Sets the texture set to be used by this renderer
147 * @param[in] textureSet The texture set to be used by this renderer
149 void SetTextures( TextureSet& textureSet );
152 * @brief Gets the texture set used by this renderer
154 * @return The texture set used by the renderer
156 TextureSet GetTextures() const;
159 * @brief Set the shader used by this renderer
160 * @param[in] shader The shader to be used by this renderer
162 void SetShader( Shader& shader );
165 * @brief Get the shader used by this renderer
166 * @return THe shader used by the renderer
168 Shader GetShader() const;
171 * @brief Specify the pixel arithmetic used when the actor is blended.
173 * @param[in] srcFactorRgba Specifies how the red, green, blue, and alpha source blending factors are computed.
174 * The options are BlendingFactor::ZERO, ONE, SRC_COLOR, ONE_MINUS_SRC_COLOR, DST_COLOR, ONE_MINUS_DST_COLOR,
175 * SRC_ALPHA, ONE_MINUS_SRC_ALPHA, DST_ALPHA, ONE_MINUS_DST_ALPHA, CONSTANT_COLOR, ONE_MINUS_CONSTANT_COLOR,
176 * GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA, and GL_SRC_ALPHA_SATURATE.
178 * @param[in] destFactorRgba Specifies how the red, green, blue, and alpha destination blending factors are computed.
179 * The options are BlendingFactor::ZERO, ONE, SRC_COLOR, ONE_MINUS_SRC_COLOR, DST_COLOR, ONE_MINUS_DST_COLOR,
180 * SRC_ALPHA, ONE_MINUS_SRC_ALPHA, DST_ALPHA, ONE_MINUS_DST_ALPHA, CONSTANT_COLOR, ONE_MINUS_CONSTANT_COLOR,
181 * GL_CONSTANT_ALPHA, and GL_ONE_MINUS_CONSTANT_ALPHA.
183 void SetBlendFunc( BlendingFactor::Type srcFactorRgba, BlendingFactor::Type destFactorRgba );
186 * @brief Specify the pixel arithmetic used when the actor is blended.
188 * @param[in] srcFactorRgb Specifies how the red, green, and blue source blending factors are computed.
189 * The options are BlendingFactor::ZERO, ONE, SRC_COLOR, ONE_MINUS_SRC_COLOR, DST_COLOR, ONE_MINUS_DST_COLOR,
190 * SRC_ALPHA, ONE_MINUS_SRC_ALPHA, DST_ALPHA, ONE_MINUS_DST_ALPHA, CONSTANT_COLOR, ONE_MINUS_CONSTANT_COLOR,
191 * GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA, and GL_SRC_ALPHA_SATURATE.
193 * @param[in] destFactorRgb Specifies how the red, green, blue, and alpha destination blending factors are computed.
194 * The options are BlendingFactor::ZERO, ONE, SRC_COLOR, ONE_MINUS_SRC_COLOR, DST_COLOR, ONE_MINUS_DST_COLOR,
195 * SRC_ALPHA, ONE_MINUS_SRC_ALPHA, DST_ALPHA, ONE_MINUS_DST_ALPHA, CONSTANT_COLOR, ONE_MINUS_CONSTANT_COLOR,
196 * GL_CONSTANT_ALPHA, and GL_ONE_MINUS_CONSTANT_ALPHA.
198 * @param[in] srcFactorAlpha Specifies how the alpha source blending factor is computed.
199 * The options are the same as for srcFactorRgb.
201 * @param[in] destFactorAlpha Specifies how the alpha source blending factor is computed.
202 * The options are the same as for destFactorRgb.
204 void SetBlendFunc( BlendingFactor::Type srcFactorRgb, BlendingFactor::Type destFactorRgb,
205 BlendingFactor::Type srcFactorAlpha, BlendingFactor::Type destFactorAlpha );
208 * @brief Query the pixel arithmetic used when the actor is blended.
210 * @param[out] srcFactorRgb Specifies how the red, green, blue, and alpha source blending factors are computed.
211 * @param[out] destFactorRgb Specifies how the red, green, blue, and alpha destination blending factors are computed.
212 * @param[out] srcFactorAlpha Specifies how the red, green, blue, and alpha source blending factors are computed.
213 * @param[out] destFactorAlpha Specifies how the red, green, blue, and alpha destination blending factors are computed.
215 void GetBlendFunc( BlendingFactor::Type& srcFactorRgb, BlendingFactor::Type& destFactorRgb,
216 BlendingFactor::Type& srcFactorAlpha, BlendingFactor::Type& destFactorAlpha ) const;
219 * @brief Specify the equation used when the actor is blended.
221 * The options are BlendingEquation::ADD, SUBTRACT, or REVERSE_SUBTRACT.
222 * @param[in] equationRgba The equation used for combining red, green, blue, and alpha components.
224 void SetBlendEquation( BlendingEquation::Type equationRgba );
227 * @brief Specify the equation used when the actor is blended.
229 * @param[in] equationRgb The equation used for combining red, green, and blue components.
230 * @param[in] equationAlpha The equation used for combining the alpha component.
231 * The options are BlendingEquation::ADD, SUBTRACT, or REVERSE_SUBTRACT.
233 void SetBlendEquation( BlendingEquation::Type equationRgb, BlendingEquation::Type equationAlpha );
236 * @brief Query the equation used when the actor is blended.
238 * @param[out] equationRgb The equation used for combining red, green, and blue components.
239 * @param[out] equationAlpha The equation used for combining the alpha component.
241 void GetBlendEquation( BlendingEquation::Type& equationRgb, BlendingEquation::Type& equationAlpha ) const;
245 * @brief The constructor
247 * @param [in] pointer A pointer to a newly allocated Renderer
249 explicit DALI_INTERNAL Renderer( Internal::Renderer* pointer );
254 #endif // DALI_RENDERER_H