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/* Copyright (c) 2020 NVIDIA CORPORATION.
* Copyright (c) 2018-2020 Chris Choy (chrischoy@ai.stanford.edu)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Please cite "4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural
* Networks", CVPR'19 (https://arxiv.org/abs/1904.08755) if you use any part
* of the code.
*/
#include "coordinate_map.hpp"
#include "coordinate_map_cpu.hpp"
#include "coordinate_map_key.hpp"
#include "coordinate_map_manager.hpp"
#include "errors.hpp"
#include "types.hpp"
#include "utils.hpp"
#include <torch/extension.h>
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
namespace minkowski {
template <typename coordinate_type>
at::Tensor
ConvolutionForwardCPU(at::Tensor const &in_feat, //
at::Tensor const &kernel, //
default_types::stride_type const &kernel_size, //
default_types::stride_type const &kernel_stride, //
default_types::stride_type const &kernel_dilation, //
RegionType::Type const region_type, //
at::Tensor const &offset, //
CoordinateMapKey *p_in_map_key, //
CoordinateMapKey *p_out_map_key, //
cpu_manager_type<coordinate_type> *p_map_manager);
template <typename coordinate_type>
std::pair<at::Tensor, at::Tensor>
ConvolutionBackwardCPU(at::Tensor const &in_feat, //
at::Tensor const &grad_out_feat, //
at::Tensor const &kernel, //
default_types::stride_type const &kernel_size, //
default_types::stride_type const &kernel_stride, //
default_types::stride_type const &kernel_dilation, //
RegionType::Type const region_type, //
at::Tensor const &offsets, //
CoordinateMapKey *p_in_map_key, //
CoordinateMapKey *p_out_map_key, //
cpu_manager_type<coordinate_type> *p_map_manager);
} // namespace minkowski
PYBIND11_MODULE(TORCH_EXTENSION_NAME, m) {
py::enum_<minkowski::GPUMemoryAllocatorBackend::Type>(m, "GPUMemoryAllocator")
.value("PYTORCH", minkowski::GPUMemoryAllocatorBackend::Type::PYTORCH)
.value("CUDA", minkowski::GPUMemoryAllocatorBackend::Type::CUDA)
.export_values();
py::enum_<minkowski::CoordinateMapBackend::Type>(m, "CoordinateMap")
.value("CPU", minkowski::CoordinateMapBackend::Type::CPU)
.value("PYTORCH", minkowski::CoordinateMapBackend::Type::CUDA)
.export_values();
py::enum_<minkowski::RegionType::Type>(m, "RegionType")
.value("HYPER_CUBE", minkowski::RegionType::Type::HYPER_CUBE)
.value("HYPER_CROSS", minkowski::RegionType::Type::HYPER_CROSS)
.value("CUSTOM", minkowski::RegionType::Type::CUSTOM)
.export_values();
py::class_<minkowski::CoordinateMapKey>(m, "CoordinateMapKey")
.def(py::init<minkowski::default_types::size_type>())
.def(py::init<minkowski::default_types::stride_type, std::string>())
.def("__repr__", &minkowski::CoordinateMapKey::to_string)
.def("get_coordinate_size",
&minkowski::CoordinateMapKey::get_coordinate_size)
.def("get_key", &minkowski::CoordinateMapKey::get_key)
.def("set_key", (void (minkowski::CoordinateMapKey::*)(
minkowski::default_types::stride_type, std::string)) &
minkowski::CoordinateMapKey::set_key)
.def("get_tensor_stride",
&minkowski::CoordinateMapKey::get_tensor_stride);
py::class_<minkowski::cpu_manager_type<int>>(m, "CoordinateMapManager")
.def(py::init<>())
.def("insert_and_map", &minkowski::CoordinateMapManager<
int32_t, std::allocator,
minkowski::CoordinateMapCPU>::insert_and_map)
.def("stride",
(typename py::object //
(minkowski::cpu_manager_type<int>::*)(
minkowski::CoordinateMapKey const *in_map_key,
minkowski::default_types::stride_type const &kernel_stride)) &
minkowski::cpu_manager_type<int>::stride)
.def("size", (typename minkowski::default_types::size_type //
(minkowski::cpu_manager_type<int>::*)(
minkowski::CoordinateMapKey const *map_key) const) &
minkowski::cpu_manager_type<int>::size)
.def("kernel_map", &minkowski::cpu_manager_type<int>::kernel_map);
m.def("ConvolutionForwardCPU",
&minkowski::ConvolutionForwardCPU<
minkowski::default_types::dcoordinate_type>,
py::call_guard<py::gil_scoped_release>());
m.def("ConvolutionBackwardCPU",
&minkowski::ConvolutionBackwardCPU<
minkowski::default_types::dcoordinate_type>,
py::call_guard<py::gil_scoped_release>());
}
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