93 lines
3.3 KiB
C++
93 lines
3.3 KiB
C++
/* Copyright 2015, Michele Santullo
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* This file is part of DoorKeeper.
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*
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* DoorKeeper is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DoorKeeper is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DoorKeeper. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace dk {
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template <typename T, uint32_t D, typename T1>
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TileIterator<T, D, T1>::TileIterator (qualif_vector_type* parData, const PixelConv<D>& parPixConv, const coords& parArea) :
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m_tile_range(parArea),
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m_data(parData),
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m_pixel_conv(parPixConv)
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{
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DK_ASSERT(parData);
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DK_ASSERT(&m_pixel_conv != nullptr);
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}
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template <typename T, uint32_t D, typename T1>
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TileIterator<T, D, T1>::TileIterator (qualif_vector_type* parData, const PixelConv<D>& parPixConv, const coords& parStart, const coords& parArea) :
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m_tile_range(parStart, parArea),
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m_data(parData),
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m_pixel_conv(parPixConv)
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{
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DK_ASSERT(parData);
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DK_ASSERT(&m_pixel_conv != nullptr);
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}
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template <typename T, uint32_t D, typename T1>
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void TileIterator<T, D, T1>::increment() {
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++m_tile_range;
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}
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template <typename T, uint32_t D, typename T1>
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void TileIterator<T, D, T1>::decrement() {
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--m_tile_range;
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}
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template <typename T, uint32_t D, typename T1>
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void TileIterator<T, D, T1>::advance (size_t parAdvance) {
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constexpr auto M = std::numeric_limits<CoordinateScalarType>::max();
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typedef typename std::conditional<
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(static_cast<std::make_unsigned<size_t>::type>(std::numeric_limits<size_t>::max()) > static_cast<std::make_unsigned<CoordinateScalarType>::type>(M)),
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size_t,
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CoordinateScalarType
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>::type LargestType;
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while (parAdvance) {
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const auto inc = std::min(static_cast<LargestType>(parAdvance), static_cast<LargestType>(M));
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m_tile_range += inc;
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parAdvance -= static_cast<size_t>(inc);
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}
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}
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template <typename T, uint32_t D, typename T1>
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auto TileIterator<T, D, T1>::distance_to (const TileIterator& parOther) -> difference_type {
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return std::distance(to_index(m_tile_range), to_index(parOther.m_tile_range));
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}
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template <typename T, uint32_t D, typename T1>
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bool TileIterator<T, D, T1>::equal (const TileIterator& parOther) const {
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return m_data == parOther.m_data and m_tile_range.position() == parOther.m_tile_range.position();
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}
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template <typename T, uint32_t D, typename T1>
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auto TileIterator<T, D, T1>::dereference() const -> reference {
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const auto index = to_index(m_tile_range);
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DK_ASSERT(m_data);
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DK_ASSERT(index >= 0);
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DK_ASSERT(static_cast<typename std::make_unsigned<decltype(index)>::type>(index) < m_data->size());
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return Tile<T, D>(&(*m_data)[index], m_tile_range, coords(0), &m_pixel_conv);
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}
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template <uint32_t D>
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inline Vector<D> make_past_end_coords (const Vector<D>& parTo) {
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Vector<D> retval(0);
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//for (CoordinateDistType d = 0; d < D - 1; ++d) {
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//retval[d] = parFrom[d];
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//}
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retval[D - 1] = parTo[D - 1] + 1;
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return retval;
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}
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} //namespace dk
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