microsoft/onnxruntime-extensions
Publicmirrored fromhttps://github.com/microsoft/onnxruntime-extensionsAvailable
operators/math/dlib/inverse.hpp
56lines · modecode
| 1 | // Copyright (c) Microsoft Corporation. All rights reserved. |
| 2 | // Licensed under the MIT License. |
| 3 | |
| 4 | #pragma once |
| 5 | |
| 6 | #include <dlib/matrix.h> |
| 7 | #include "ocos.h" |
| 8 | |
| 9 | |
| 10 | struct KernelInverse : BaseKernel { |
| 11 | KernelInverse(const OrtApi& api) : BaseKernel(api) { |
| 12 | } |
| 13 | |
| 14 | void Compute(OrtKernelContext* context) { |
| 15 | // Setup inputs |
| 16 | const OrtValue* input_X = ort_.KernelContext_GetInput(context, 0); |
| 17 | const float* X = ort_.GetTensorData<float>(input_X); |
| 18 | |
| 19 | // Setup output |
| 20 | OrtTensorDimensions dimensions(ort_, input_X); |
| 21 | if (dimensions.size() != 2) { |
| 22 | throw std::runtime_error("Only 2-d matrix supported."); |
| 23 | } |
| 24 | |
| 25 | OrtValue* output0 = ort_.KernelContext_GetOutput( |
| 26 | context, 0, dimensions.data(), dimensions.size()); |
| 27 | float* out0 = ort_.GetTensorMutableData<float>(output0); |
| 28 | |
| 29 | dlib::matrix<float> dm_x(dimensions[0], dimensions[1]); |
| 30 | std::copy(X, X + dm_x.size(), dm_x.begin()); |
| 31 | dlib::matrix<float> dm = dlib::inv(dm_x); |
| 32 | memcpy(out0, dm.steal_memory().get(), dm_x.size() * sizeof(float)); |
| 33 | } |
| 34 | }; |
| 35 | |
| 36 | struct CustomOpInverse : OrtW::CustomOpBase<CustomOpInverse, KernelInverse> { |
| 37 | const char* GetName() const { |
| 38 | return "Inverse"; |
| 39 | } |
| 40 | |
| 41 | size_t GetInputTypeCount() const { |
| 42 | return 1; |
| 43 | } |
| 44 | |
| 45 | ONNXTensorElementDataType GetInputType(size_t /*index*/) const { |
| 46 | return ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT; |
| 47 | } |
| 48 | |
| 49 | size_t GetOutputTypeCount() const { |
| 50 | return 1; |
| 51 | } |
| 52 | |
| 53 | ONNXTensorElementDataType GetOutputType(size_t /*index*/) const { |
| 54 | return ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT; |
| 55 | } |
| 56 | }; |
| 57 | |