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 Sets flag to update data in the buffer when next PropertyBuffer::Update()
89 * @brief Set the number of elements
90 * @param[in] size The number of elements
92 void SetSize( unsigned int size );
95 * @brief Bind the property buffer
96 * @param[in] target The binding point
98 void BindBuffer(GpuBuffer::Target target);
101 * Perform the upload of the buffer only when requiered
102 * @param[in] context The GL context
104 bool Update( Context& context );
107 * Enable the vertex attributes for each vertex buffer from the corresponding
109 * @param[in] context The GL context
110 * @param[in] vAttributeLocation Vector containing attributes location for current program
111 * @param[in] locationBase Index in vAttributeLocation corresponding to the first attribute defined by this buffer
113 unsigned int EnableVertexAttributes( Context& context, Vector<GLint>& vAttributeLocation, unsigned int locationBase );
116 * Get the number of attributes present in the buffer
117 * @return The number of attributes stored in this buffer
119 inline unsigned int GetAttributeCount() const
121 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
122 return mFormat->components.size();
126 * Retrieve the i-essim attribute name
127 * @param[in] index The index of the attribute
128 * @return The name of the attribute
130 inline const std::string& GetAttributeName(unsigned int index ) const
132 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
133 return mFormat->components[index].name;
137 * Retrieve the size of the buffer in bytes
138 * @return The total size of the buffer
140 inline std::size_t GetDataSize() const
142 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
143 return mFormat->size * mSize;
147 * Retrieve the size of one element of the buffer
148 * @return The size of one element
150 inline std::size_t GetElementSize() const
152 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
153 return mFormat->size;
157 * Retrieve the number of elements in the buffer
158 * @return The total number of elements
160 inline unsigned int GetElementCount() const
166 * Retrieve reference to the data storage vector
167 * @return Reference to the data storage
169 inline const Dali::Vector< char >& GetData() const
175 * Retrieve data writeable pointer ( direct access to the buffer data )
176 * @return Pointer to data converted to requested type
178 template <typename T>
179 inline T* GetDataTypedPtr()
181 Dali::Vector< char >* data = mData.Release();
183 return reinterpret_cast<T*>( &data->operator[]( 0 ) );
186 inline const PropertyBuffer::Format* GetFormat() const
188 return mFormat.Get();
192 OwnerPointer< PropertyBuffer::Format > mFormat; ///< Format of the buffer
193 OwnerPointer< Dali::Vector< char > > mData; ///< Data
194 OwnerPointer< GpuBuffer > mGpuBuffer; ///< Pointer to the GpuBuffer associated with this RenderPropertyBuffer
196 size_t mSize; ///< Number of Elements in the buffer
197 bool mDataChanged; ///< Flag to know if data has changed in a frame
200 } // namespace Render
202 } // namespace Internal
207 #endif // DALI_INTERNAL_RENDER_PROPERTY_BUFFER_H