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/************************************************************************
*
* Copyright (C) 2009-2023 IRCAD France
* Copyright (C) 2012-2019 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
namespace sight::data::timeline
{
//-----------------------------------------------------------------------------
template<typename TYPE>
generic_object<TYPE>::generic_object(
unsigned int _m_max_element_num,
core::clock::type _timestamp,
buffer_data_t _buffer,
std::size_t _size,
deleter_t _d
) :
generic_object_base(_m_max_element_num, _timestamp, _buffer, _size, _d)
{
// init all floating point values to 0
memset(m_buffer, 0, _m_max_element_num * get_element_size());
}
//-----------------------------------------------------------------------------
template<typename TYPE> generic_object<TYPE>::~generic_object()
= default;
//-----------------------------------------------------------------------------
template<typename TYPE>
const TYPE& generic_object<TYPE>::get_element(unsigned int _index) const
{
SIGHT_ASSERT("Index out of bounds", _index < m_max_element_num);
return *(reinterpret_cast<const element_t*>(m_buffer + _index * get_element_size()));
}
//-----------------------------------------------------------------------------
template<typename TYPE>
void generic_object<TYPE>::set_element(const element_t& _element, unsigned int _index)
{
static_assert(
std::is_trivially_copyable_v<TYPE>,
"TYPE must be TriviallyCopyable for generic_object<TYPE>::setElement to be used."
);
SIGHT_ASSERT("Index out of bounds", _index < m_max_element_num);
// store floating point values
auto* dst_element = reinterpret_cast<TYPE*>(m_buffer + _index * get_element_size());
// undefined behavior if TYPE isn't TriviallyCopyable:
memcpy(static_cast<void*>(dst_element), &_element, get_element_size());
// update presence mask
uint64_t old_mask = m_presence_mask;
m_presence_mask |= (uint64_t(1) << _index);
if(old_mask != m_presence_mask)
{
++m_num_present;
}
}
//-----------------------------------------------------------------------------
template<typename TYPE>
TYPE* generic_object<TYPE>::add_element(unsigned int _index)
{
SIGHT_ASSERT("Index out of bounds", _index < m_max_element_num);
// update presence mask
uint64_t old_mask = m_presence_mask;
m_presence_mask |= (uint64_t(1) << _index);
if(old_mask != m_presence_mask)
{
++m_num_present;
}
// return pointer on the new element
auto* dst_element = reinterpret_cast<TYPE*>(m_buffer + _index * get_element_size());
return dst_element;
}
//-----------------------------------------------------------------------------
template<typename TYPE>
typename generic_object<TYPE>::iterator generic_object<TYPE>::get_presence_iterator() const
{
return iterator(*this);
}
//-----------------------------------------------------------------------------
template<typename TYPE>
generic_object<TYPE>::iterator::iterator(const generic_object_base& _object) :
m_object(&_object),
m_max_element(m_object->get_max_element_num())
{
while(m_current_index < m_max_element && !m_object->is_present(m_current_index))
{
m_current_index++;
}
}
//-----------------------------------------------------------------------------
template<typename TYPE>
void generic_object<TYPE>::iterator::operator++()
{
SIGHT_ASSERT("Iterator out of bounds", m_current_index < m_max_element);
while(++m_current_index < m_max_element && !m_object->is_present(m_current_index))
{
}
}
//-----------------------------------------------------------------------------
template<typename TYPE>
const TYPE& generic_object<TYPE>::iterator::operator*() const
{
const auto* object = static_cast<const generic_object<element_t>*>(m_object);
return object->get_element(m_current_index);
}
//-----------------------------------------------------------------------------
} // namespace sight::data::timeline
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