1 #ifndef __DALI_INTERNAL_SHADER_EFFECT_H__
2 #define __DALI_INTERNAL_SHADER_EFFECT_H__
5 * Copyright (c) 2014 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/images/image.h>
23 #include <dali/public-api/shader-effects/shader-effect.h>
24 #include <dali/internal/event/effects/shader-declarations.h>
25 #include <dali/internal/event/common/object-impl.h>
26 #include <dali/internal/event/resources/resource-ticket.h>
27 #include <dali/internal/render/shaders/scene-graph-shader.h>
41 * An abstract base class for a shader effect object.
42 * The corresponding scene-graph object is a collection of shader programs,
43 * which can apply the same effect to different geometry types.
45 class ShaderEffect : public Object
48 typedef Dali::ShaderEffect::UniformCoordinateType UniformCoordinateType;
52 DOESNT_MODIFY_GEOMETRY,
57 * Create a new ShaderEffect with no programs
58 * @param hints GeometryHints to define the geometry of the rendered object
59 * @return A smart-pointer to a newly allocated shader effect.
61 static ShaderEffectPtr New( Dali::ShaderEffect::GeometryHints hints = Dali::ShaderEffect::HINT_NONE );
64 * @copydoc Dali::ShaderEffect::SetEffectImage
66 void SetEffectImage( Dali::Image image );
69 * @copydoc Dali::ShaderEffect::SetUniform( const std::string& name, Property::Value value, UniformCoordinateType uniformCoordinateType )
71 void SetUniform( const std::string& name,
72 Property::Value value,
73 UniformCoordinateType uniformCoordinateType );
76 * Add a GeometryType specific default program to this ShaderEffect
77 * @param[in] geometryType The GeometryType rendered by the shader program
78 * @param[in] vertexSource The source code for the vertex shader
79 * @param[in] fragmentSource The source code for the fragment shader
81 void SetPrograms( const std::string& vertexSource, const std::string& fragmentSource );
84 * Add a default program to this ShaderEffect.
85 * This overload allows the optional prefixing for both the vertex and fragment shader.
86 * A useful prefix may be shader \#defines for conditional compilation.
87 * @param[in] vertexPrefix The prefix source code for the vertex shader
88 * @param[in] fragmentPrefix The prefix source code for the fragment shader
89 * @param[in] vertexSource The source code for the vertex shader
90 * @param[in] fragmentSource The source code for the fragment shader
92 void SetPrograms( const std::string& vertexPrefix, const std::string& fragmentPrefix,
93 const std::string& vertexSource, const std::string& fragmentSource );
96 * Send shader program to scene-graph object.
97 * @param[in] vertexSource The source code for the vertex shader
98 * @param[in] fragmentSource The source code for the fragment shader
99 * @param[in] modifiesGeometry True if the shader modifies geometry
101 void SendProgramMessage( const std::string& vertexSource, const std::string& fragmentSource,
102 bool modifiesGeometry );
105 * Notify ShaderEffect that it's being used by an Actor.
110 * Notify ShaderEffect that an Actor is no longer using it.
114 public: // Default property extensions from Object
117 * @copydoc Dali::Internal::Object::GetDefaultPropertyCount()
119 virtual unsigned int GetDefaultPropertyCount() const;
122 * @copydoc Dali::Internal::Object::GetDefaultPropertyIndices()
124 virtual void GetDefaultPropertyIndices( Property::IndexContainer& indices ) const;
127 * @copydoc Dali::Internal::Object::GetDefaultPropertyName()
129 virtual const char* GetDefaultPropertyName( Property::Index index ) const;
132 * @copydoc Dali::Internal::Object::GetDefaultPropertyIndex()
134 virtual Property::Index GetDefaultPropertyIndex( const std::string& name ) const;
137 * @copydoc Dali::Internal::Object::IsDefaultPropertyWritable()
139 virtual bool IsDefaultPropertyWritable( Property::Index index ) const;
142 * @copydoc Dali::Internal::Object::IsDefaultPropertyAnimatable()
144 virtual bool IsDefaultPropertyAnimatable( Property::Index index ) const;
147 * @copydoc Dali::Internal::Object::IsDefaultPropertyAConstraintInput()
149 virtual bool IsDefaultPropertyAConstraintInput( Property::Index index ) const;
152 * @copydoc Dali::Internal::Object::GetDefaultPropertyType()
154 virtual Property::Type GetDefaultPropertyType( Property::Index index ) const;
157 * @copydoc Dali::Internal::Object::SetDefaultProperty()
159 virtual void SetDefaultProperty( Property::Index index, const Property::Value& propertyValue );
162 * @copydoc Dali::Internal::Object::GetDefaultProperty()
164 virtual Property::Value GetDefaultProperty( Property::Index index ) const;
167 * @copydoc Dali::Internal::Object::NotifyScenePropertyInstalled()
169 virtual void NotifyScenePropertyInstalled( const SceneGraph::PropertyBase& newProperty, const std::string& name, unsigned int index ) const;
172 * @copydoc Dali::Internal::Object::GetSceneObject()
174 virtual const SceneGraph::PropertyOwner* GetSceneObject() const;
177 * @copydoc Dali::Internal::Object::GetSceneObjectAnimatableProperty()
179 virtual const SceneGraph::PropertyBase* GetSceneObjectAnimatableProperty( Property::Index index ) const;
182 * @copydoc Dali::Internal::Object::GetSceneObjectInputProperty()
184 virtual const PropertyInputImpl* GetSceneObjectInputProperty( Property::Index index ) const;
189 * Protected constructor.
190 * @param[in] eventThreadServices the interface to use for sending messages to the update thread
191 * @param[in] hints Geometry hints
193 ShaderEffect( EventThreadServices& eventThreadServices, Dali::ShaderEffect::GeometryHints hints );
196 * A reference counted object may only be deleted by calling Unreference()
198 virtual ~ShaderEffect();
202 // No copying allowed, thus these are undefined
203 ShaderEffect( const ShaderEffect& );
204 ShaderEffect& operator=( const ShaderEffect& rhs );
207 EventThreadServices& mEventThreadServices; ///< Event thread services, for sending messages
208 SceneGraph::Shader* mSceneObject; ///< pointer to the scene shader, should not be changed on this thread
209 Dali::Image mImage; ///< Client-side handle for the effect image
210 std::vector<ResourceTicketPtr> mTickets; ///< Collection of shader program tickets
211 unsigned int mConnectionCount; ///< number of on-stage ImageActors using this shader effect
212 Dali::ShaderEffect::GeometryHints mGeometryHints; ///< shader geometry hints for building the geometry
213 Dali::Vector< UniformCoordinateType > mCoordinateTypes; ///< cached to avoid sending tons of unnecessary messages
217 } // namespace Internal
219 // Helpers for public-api forwarding methods
221 inline Internal::ShaderEffect& GetImplementation(Dali::ShaderEffect& effect)
223 DALI_ASSERT_ALWAYS(effect && "ShaderEffect handle is empty");
225 BaseObject& handle = effect.GetBaseObject();
227 return static_cast<Internal::ShaderEffect&>(handle);
230 inline const Internal::ShaderEffect& GetImplementation(const Dali::ShaderEffect& effect)
232 DALI_ASSERT_ALWAYS(effect && "ShaderEffect handle is empty");
234 const BaseObject& handle = effect.GetBaseObject();
236 return static_cast<const Internal::ShaderEffect&>(handle);
241 #endif // __DALI_INTERNAL_SHADER_EFFECT_H__