1 #ifndef DALI_INTERNAL_RENDER_PROPERTY_BUFFER_H
2 #define DALI_INTERNAL_RENDER_PROPERTY_BUFFER_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.
19 #include <dali/public-api/actors/sampling.h>
20 #include <dali/public-api/common/vector-wrapper.h>
21 #include <dali/public-api/rendering/sampler.h>
22 #include <dali/internal/common/owner-pointer.h>
23 #include <dali/internal/render/renderers/render-sampler.h>
24 #include <dali/internal/render/gl-resources/gpu-buffer.h>
46 * Structure that holds the meta-data of the format of PropertyBuffer.
50 std::vector<Component> components;
55 * @brief Default constructor
65 * @brief Set the format of the buffer
67 * This function takes ownership of the pointer
69 * @param[in] format The format for the PropertyBuffer
71 void SetFormat( PropertyBuffer::Format* format );
74 * @brief Set the data of the PropertyBuffer
76 * This function takes ownership of the pointer
77 * @param[in] data The new data of the PropertyBuffer
78 * @param[in] size The new size of the buffer
80 void SetData( Dali::Vector<char>* data, size_t size );
83 * @brief Set the number of elements
84 * @param[in] size The number of elements
86 void SetSize( unsigned int size );
89 * @brief Bind the property buffer
90 * @param[in] target The binding point
92 void BindBuffer(GpuBuffer::Target target);
95 * Perform the upload of the buffer only when requiered
96 * @param[in] context The GL context
98 bool Update( Context& context );
101 * Enable the vertex attributes for each vertex buffer from the corresponding
103 * @param[in] context The GL context
104 * @param[in] vAttributeLocation Vector containing attributes location for current program
105 * @param[in] locationBase Index in vAttributeLocation corresponding to the first attribute defined by this buffer
107 unsigned int EnableVertexAttributes( Context& context, Vector<GLint>& vAttributeLocation, unsigned int locationBase );
110 * Get the number of attributes present in the buffer
111 * @return The number of attributes stored in this buffer
113 inline unsigned int GetAttributeCount() const
115 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
116 return mFormat->components.size();
120 * Retrieve the i-essim attribute name
121 * @param[in] index The index of the attribute
122 * @return The name of the attribute
124 inline const std::string& GetAttributeName(unsigned int index ) const
126 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
127 return mFormat->components[index].name;
131 * Retrieve the size of the buffer in bytes
132 * @return The total size of the buffer
134 inline std::size_t GetDataSize() const
136 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
137 return mFormat->size * mSize;
141 * Retrieve the size of one element of the buffer
142 * @return The size of one element
144 inline std::size_t GetElementSize() const
146 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
147 return mFormat->size;
151 * Retrieve the number of elements in the buffer
152 * @return The total number of elements
154 inline unsigned int GetElementCount() const
160 * Retrieve reference to the data storage vector
161 * @return Reference to the data storage
163 inline const Dali::Vector< char >& GetData() const
169 * Retrieve data writeable pointer ( direct access to the buffer data )
170 * @return Pointer to data converted to requested type
172 template <typename T>
173 inline T* GetDataTypedPtr()
175 Dali::Vector< char >* data = mData.Release();
177 return reinterpret_cast<T*>( &data->operator[]( 0 ) );
180 inline const PropertyBuffer::Format* GetFormat() const
182 return mFormat.Get();
186 OwnerPointer< PropertyBuffer::Format > mFormat; ///< Format of the buffer
187 OwnerPointer< Dali::Vector< char > > mData; ///< Data
188 OwnerPointer< GpuBuffer > mGpuBuffer; ///< Pointer to the GpuBuffer associated with this RenderPropertyBuffer
190 size_t mSize; ///< Number of Elements in the buffer
191 bool mDataChanged; ///< Flag to know if data has changed in a frame
194 } // namespace Render
196 } // namespace Internal
201 #endif // DALI_INTERNAL_RENDER_PROPERTY_BUFFER_H