56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
/* Copyright 2015, Michele Santullo
|
|
* This file is part of DoorKeeper.
|
|
*
|
|
* DoorKeeper is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* DoorKeeper 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with DoorKeeper. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
namespace dk {
|
|
namespace implem {
|
|
template <typename T, uint32_t D>
|
|
class data_fetcher<T, D, true> {
|
|
public:
|
|
typedef typename BaseMapSource<D>::coords coords;
|
|
static void fetch ( std::vector<T>& parOut, const coords& parFrom, const coords& parTo, std::size_t parCount, BaseMapSource<D>& parMapSrc ) {
|
|
parOut.resize(parCount);
|
|
parMapSrc.fetch_raw(reinterpret_cast<char*>(parOut.data()), parFrom, parTo, sizeof(T) * parCount);
|
|
}
|
|
};
|
|
template <typename T, uint32_t D>
|
|
class data_fetcher<T, D, false> {
|
|
public:
|
|
typedef typename BaseMapSource<D>::coords coords;
|
|
static void fetch ( std::vector<T>& parOut, const coords& parFrom, const coords& parTo, std::size_t parCount, BaseMapSource<D>& parMapSrc ) {
|
|
parOut.reserve(parCount);
|
|
DK_ASSERT(false); //not implemented
|
|
(void)parOut;
|
|
(void)parFrom;
|
|
(void)parTo;
|
|
(void)parMapSrc;
|
|
}
|
|
};
|
|
} //namespace implem
|
|
|
|
template <uint32_t D>
|
|
template <typename T>
|
|
void BaseMapSource<D>::fetch (std::vector<T>& parOut, const coords& parFrom, const coords& parTo) {
|
|
const auto tile_count = tile_volume<D>(parTo - parFrom);
|
|
const std::size_t casted_tile_count = static_cast<std::size_t>(tile_count);
|
|
DK_ASSERT(static_cast<decltype(tile_count)>(casted_tile_count) == tile_count);
|
|
|
|
parOut.reserve(casted_tile_count);
|
|
parOut.clear();
|
|
implem::data_fetcher<T, D>::fetch(parOut, parFrom, parTo, casted_tile_count, *this);
|
|
}
|
|
} //namespace dk
|