38 lines
1.4 KiB
C++
38 lines
1.4 KiB
C++
namespace dk {
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namespace implem {
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template <typename T, uint32_t D>
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class data_fetcher<T, D, true> {
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public:
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typedef typename BaseMapSource<D>::coords coords;
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static void fetch ( std::vector<T>& parOut, const coords& parFrom, const coords& parTo, std::size_t parCount, BaseMapSource<D>& parMapSrc ) {
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parOut.resize(parCount);
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parMapSrc.fetch_raw(reinterpret_cast<char*>(parOut.data()), parFrom, parTo, sizeof(T) * parCount);
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}
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};
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template <typename T, uint32_t D>
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class data_fetcher<T, D, false> {
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public:
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typedef typename BaseMapSource<D>::coords coords;
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static void fetch ( std::vector<T>& parOut, const coords& parFrom, const coords& parTo, std::size_t parCount, BaseMapSource<D>& parMapSrc ) {
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parOut.reserve(parCount);
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DK_ASSERT(false); //not implemented
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(void)parOut;
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(void)parFrom;
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(void)parTo;
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(void)parMapSrc;
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}
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};
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} //namespace implem
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template <uint32_t D>
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template <typename T>
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void BaseMapSource<D>::fetch (std::vector<T>& parOut, const coords& parFrom, const coords& parTo) {
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const auto tile_count = tile_volume<D>(parTo - parFrom + 1);
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const std::size_t casted_tile_count = static_cast<std::size_t>(tile_count);
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DK_ASSERT(static_cast<decltype(tile_count)>(casted_tile_count) == tile_count);
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parOut.reserve(casted_tile_count);
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parOut.clear();
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implem::data_fetcher<T, D>::fetch(parOut, parFrom, parTo, casted_tile_count, *this);
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}
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} //namespace dk
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