1 #ifndef DALI_INTERNAL_RENDER_GEOMETRY_H
2 #define DALI_INTERNAL_RENDER_GEOMETRY_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.
20 #include <dali/public-api/common/dali-vector.h>
21 #include <dali/public-api/rendering/geometry.h>
22 #include <dali/devel-api/common/owner-container.h>
23 #include <dali/internal/common/owner-pointer.h>
24 #include <dali/internal/common/buffer-index.h>
25 #include <dali/internal/common/owner-pointer.h>
26 #include <dali/integration-api/gl-abstraction.h>
27 #include <dali/integration-api/gl-defines.h>
42 * This class encapsulates the GPU buffers. It is used to upload vertex data
43 * to it's GPU buffers, to bind all the buffers and to setup/teardown vertex attribute
49 typedef Dali::Geometry::Type Type;
59 * Called on Gl Context created
61 void GlContextCreated( Context& context );
64 * Called on Gl Context destroyed.
66 void GlContextDestroyed();
69 * Adds a property buffer to the geometry
70 * @param[in] dataProvider The PropertyBuffer data provider
72 void AddPropertyBuffer( Render::PropertyBuffer* propertyBuffer );
75 * Set the data for the index buffer to be used by the geometry
76 * @param[in] indices A vector containing the indices
78 void SetIndexBuffer( Dali::Vector<unsigned short>& indices );
81 * Obtains pointer to the storage of indexed elements
82 * @return Pointer to the index buffer
84 const Dali::Vector<unsigned short>* GetIndexBuffer() const;
87 * Removes a PropertyBuffer from the geometry
88 * @param[in] propertyBuffer The property buffer to be removed
90 void RemovePropertyBuffer( const Render::PropertyBuffer* propertyBuffer );
93 * Returns property buffer at specified index
94 * @param[in] index of the property buffer
95 * @return pointer to the property buffer or NULL
97 const Render::PropertyBuffer* GetPropertyBuffer( size_t index ) const;
100 * Gets the attribute locations on the shader for the attributes defined in the geometry RenderBuffers
101 * @param[out] attributeLocation The vector where the attributes locations will be stored
102 * @param[in] program The program
103 * @param[in] bufferIndex The current buffer index
105 void GetAttributeLocationFromProgram( Vector<GLint>& attributeLocation, Program& program, BufferIndex bufferIndex ) const;
108 * Called from RenderManager to notify the geometry that current rendering pass has finished.
110 void OnRenderFinished();
113 * Chack if the attributes for the geometry have changed
114 * @return True if vertex buffers have been added or removed since last frame, false otherwise
116 bool AttributesChanged() const
118 return mAttributesChanged;
122 * Sets the geometry type
123 * @param[in] type The new geometry type
125 void SetType( Type type )
127 mGeometryType = type;
131 * Upload the geometry if it has changed, set up the attributes and perform
132 * the Draw call corresponding to the geometry type
133 * @param[in] context The GL context
134 * @param[in] bufferIndex The current buffer index
135 * @param[in] attributeLocation The location for the attributes in the shader
136 * @param[in] elementBufferOffset The index of first element to draw if index buffer bound
137 * @param[in] elementBufferCount Number of elements to draw if index buffer bound, uses whole buffer when 0
139 void UploadAndDraw(Context& context,
140 BufferIndex bufferIndex,
141 Vector<GLint>& attributeLocation,
142 size_t elementBufferOffset,
143 size_t elementBufferCount );
148 Vector< Render::PropertyBuffer* > mVertexBuffers;
150 Dali::Vector< unsigned short> mIndices;
151 OwnerPointer< GpuBuffer > mIndexBuffer;
155 bool mIndicesChanged : 1;
156 bool mHasBeenUpdated : 1;
157 bool mAttributesChanged : 1;
160 } // namespace Render
161 } // namespace Internal
164 #endif // DALI_INTERNAL_RENDER_GEOMETRY_H