1 #ifndef DALI_INTERNAL_RENDER_VERTEX_BUFFER_H
2 #define DALI_INTERNAL_RENDER_VERTEX_BUFFER_H
5 * Copyright (c) 2020 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.
21 #include <dali/public-api/actors/sampling.h>
22 #include <dali/public-api/common/vector-wrapper.h>
23 #include <dali/public-api/rendering/sampler.h>
24 #include <dali/internal/common/owner-pointer.h>
25 #include <dali/internal/render/renderers/render-sampler.h>
26 #include <dali/internal/render/gl-resources/gpu-buffer.h>
27 #include <dali/internal/common/const-string.h>
49 * Structure that holds the meta-data of the format of VertexBuffer.
53 std::vector<Component> components;
58 * @brief Default constructor
68 * @brief Set the format of the buffer
70 * This function takes ownership of the pointer
72 * @param[in] format The format for the VertexBuffer
74 void SetFormat( VertexBuffer::Format* format );
77 * @brief Set the data of the VertexBuffer
79 * This function takes ownership of the pointer
80 * @param[in] data The new data of the VertexBuffer
81 * @param[in] size The new size of the buffer
83 void SetData( Dali::Vector<uint8_t>* data, uint32_t size );
86 * @brief Set the number of elements
87 * @param[in] size The number of elements
89 void SetSize( uint32_t size );
92 * @brief Bind the property buffer
93 * @param context The context to bind the the buffer
94 * @param[in] target The binding point
96 void BindBuffer( Context& context, GpuBuffer::Target target );
99 * Perform the upload of the buffer only when requiered
100 * @param[in] context The GL context
102 bool Update( Context& context );
105 * Enable the vertex attributes for each vertex buffer from the corresponding
107 * @param[in] context The GL context
108 * @param[in] vAttributeLocation Vector containing attributes location for current program
109 * @param[in] locationBase Index in vAttributeLocation corresponding to the first attribute defined by this buffer
111 uint32_t EnableVertexAttributes( Context& context, Vector<GLint>& vAttributeLocation, uint32_t locationBase );
114 * Get the number of attributes present in the buffer
115 * @return The number of attributes stored in this buffer
117 inline uint32_t GetAttributeCount() const
119 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
120 return static_cast<uint32_t>( mFormat->components.size() );
124 * Retrieve the i-essim attribute name
125 * @param[in] index The index of the attribute
126 * @return The name of the attribute
128 inline ConstString GetAttributeName( uint32_t index ) const
130 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
131 return mFormat->components[index].name;
135 * Retrieve the size of the buffer in bytes
136 * @return The total size of the buffer
138 inline uint32_t GetDataSize() const
140 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
141 return mFormat->size * mSize;
145 * Retrieve the size of one element of the buffer
146 * @return The size of one element
148 inline uint32_t GetElementSize() const
150 DALI_ASSERT_DEBUG( mFormat && "Format should be set ");
151 return mFormat->size;
155 * Retrieve the number of elements in the buffer
156 * @return The total number of elements
158 inline uint32_t GetElementCount() const
164 * Retrieve reference to the data storage vector
165 * @return Reference to the data storage
167 inline const Dali::Vector< uint8_t >& GetData() const
173 * Retrieve data writeable pointer ( direct access to the buffer data )
174 * @return Pointer to data converted to requested type
176 template <typename T>
177 inline T* GetDataTypedPtr()
179 Dali::Vector< uint8_t >* data = mData.Release();
181 return reinterpret_cast<T*>( &data->operator[]( 0 ) );
184 inline const VertexBuffer::Format* GetFormat() const
186 return mFormat.Get();
190 OwnerPointer< VertexBuffer::Format > mFormat; ///< Format of the buffer
191 OwnerPointer< Dali::Vector< uint8_t > > mData; ///< Data
192 OwnerPointer< GpuBuffer > mGpuBuffer; ///< Pointer to the GpuBuffer associated with this RenderVertexBuffer
194 uint32_t mSize; ///< Number of Elements in the buffer
195 bool mDataChanged; ///< Flag to know if data has changed in a frame
198 } // namespace Render
200 } // namespace Internal
205 #endif // DALI_INTERNAL_RENDER_VERTEX_BUFFER_H