72 lines
3.5 KiB
Text
72 lines
3.5 KiB
Text
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namespace dk {
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namespace implem {
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///---------------------------------------------------------------------
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///Only enabled if Device::MapDimensions is defined and is the same
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///as D. The function's name is set to give a hint to the user as to
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///why the error has occurred (they are trying to construct a
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///TileMapData with a set dimension that is different from the one
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///hardcoded in the device being passed in). The actual name could be
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///something like get_device_dimensions().
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///---------------------------------------------------------------------
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template <std::size_t D, typename Device>
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typename std::enable_if<Device::MapDimensions == D, std::size_t>::type err_mismatching_dimension (const Device*) noexcept {
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return Device::MapDimensions;
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}
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///---------------------------------------------------------------------
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///Only enabled if Device::MapDimensions is not defined. The function's
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///name is set to give a hint to the user as to why the error has
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///occurred (they are trying to construct a TileMapData with a set
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///dimension that is different from the one hardcoded in the device
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///being passed in). The actual name could be something like
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///get_device_dimensions().
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///---------------------------------------------------------------------
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template <std::size_t D, typename Device>
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typename std::enable_if<HasMapDimensions<Device>::result == false, std::size_t>::type err_mismatching_dimension (const Device*) noexcept {
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return 0;
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}
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///---------------------------------------------------------------------
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///---------------------------------------------------------------------
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template <std::size_t D, typename Device>
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typename std::enable_if<Device::MapDimensions == D, Vector<CoordinateScalarType, D>>::type retrieve_map_size_from_device (Device* parDevice) {
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return parDevice->mapSize();
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}
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///---------------------------------------------------------------------
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///---------------------------------------------------------------------
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template <std::size_t D, typename Device>
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typename std::enable_if<HasMapDimensions<Device>::result == false, Vector<CoordinateScalarType, D>>::type retrieve_map_size_from_device (Device* parDevice) {
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return get_map_size_from_device<D>(parDevice);
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}
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} //namespace implem
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename T, std::size_t D>
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template <typename Device>
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TileMapData<T, D>::TileMapData (Device& parDevice) :
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m_stream(&parDevice),
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m_mapSize(implem::retrieve_map_size_from_device<D>(&parDevice)),
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m_deviceHasDim(D == implem::err_mismatching_dimension<D>(&parDevice))
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{
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}
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename T, std::size_t D>
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void TileMapData<T, D>::fetch (std::vector<T>& parOut, const coords& parFrom, const coords& parTo) {
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//TODO: implement
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std::cout << "Would fetch data from " << parFrom << " to " << parTo << "\n";
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const auto count = implem::area(parTo - parFrom);
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std::fill_n(std::back_inserter(parOut), count, T());
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}
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///-------------------------------------------------------------------------
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///-------------------------------------------------------------------------
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template <typename T, std::size_t D>
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const typename TileMapData<T, D>::coords& TileMapData<T, D>::mapSize() const {
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return m_mapSize;
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}
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} //namespace dk
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