From 7c91dec891114551a53f3e0463b5df693fe8aa94 Mon Sep 17 00:00:00 2001
From: Abhiram Iyer <abhi.iyer.ai@gmail.com>
Date: Thu, 11 Jun 2020 16:19:15 -0700
Subject: [PATCH] feat(//core/conversion/converters/impl/plugins): template for
 interpolate plugin Signed-off-by: Abhiram Iyer <abhirami@nvidia.com>

Signed-off-by: Abhiram Iyer <abhi.iyer.ai@gmail.com>
---
 .../impl/plugins/interpolate_plugin.cpp       | 183 ++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100755 core/conversion/converters/impl/plugins/interpolate_plugin.cpp

diff --git a/core/conversion/converters/impl/plugins/interpolate_plugin.cpp b/core/conversion/converters/impl/plugins/interpolate_plugin.cpp
new file mode 100755
index 0000000000..369faa806b
--- /dev/null
+++ b/core/conversion/converters/impl/plugins/interpolate_plugin.cpp
@@ -0,0 +1,183 @@
+#include <torch/extension.h>
+#include <torch/script.h>
+#include <string>
+#include <iostream>
+#include <sstream>
+#include <NvInfer.h>
+#include <ATen/ATen.h>
+#include <ATen/cuda/CUDAEvent.h>
+#include <torch/torch.h>
+#include <cuda_runtime_api.h>
+#include "NvInferVersion.h"
+#include <vector>
+#include <cudnn.h>
+#include <NVInferRuntime.h>
+#include <NVInferRuntimeCommon.h>
+
+namespace trtorch {
+namespace core {
+namespace conversion {
+namespace converters {
+namespace impl {
+namespace plugins {
+namespace {
+
+class InterpolatePlugin : public nvinfer1::IPluginV2DynamicExt {
+private:
+    at::TensorOptions tensor_options;
+    std::vector<int64_t> input_sizes;
+    std::vector<int64_t> output_sizes;
+    DataType dtype;
+
+    std::vector<int64_t> size;
+    std::string mode;
+    bool align_corners;
+
+public:
+    InterpolatePlugin(const char* name, std::vector<int64_t> in_shape, 
+                                        std::vector<int64_t> out_shape, 
+                                        std::string mode, 
+                                        bool align_corners) : name(name), in_shape(in_shape), out_shape(out_shape), mode(mode), align_corners(align_corners) {}
+
+
+
+    const char* getPluginType() const override {
+        return "Interpolate";
+    }
+
+    const char* getPluginVersion() const override {
+        return "1";
+    }
+
+    const char* getPluginNamespace() const override {
+        return "trtorch";
+    }
+
+    void setPluginNamespace(const char* pluginNamespace) {}
+
+    int getTensorRTVersion() const override {
+        return NV_TENSORRT_MAJOR;
+    }
+
+    nvinfer1::IPluginV2DynamicExt* clone() const override {
+        auto* plugin = new InterpolatePlugin(*this);
+        return plugin;
+    }
+
+    nvinfer::DimsExprs getOutputDimensions(int outputIndex, const nvinfer1::DimsExprs *inputs, int nbInputs, nvinfer1::IExprBuilder &exprBuilder) const override {
+       
+    }
+
+    nvinfer1::DataType getOutputDataType(int index, const nvinfer1::DataType* inputTypes, int nbInputs) const override {
+
+    }
+
+    int getNbOutputs() const override {
+        return 1;
+    }
+
+    int initialize() override {
+
+    }
+
+    void terminate() override {
+
+    }
+
+    void serialize(void* buffer) const override {
+
+    }
+
+    void size_t getSerializationSize() const override {
+
+    }
+
+    void destroy() override {
+
+    }
+
+    bool supportsFormatCombination(int pos, const nvinfer1::PluginTensorDesc* inOut, int nbInputs, int nbOutputs) override {
+
+    }
+
+    void configurePlugin(const nvinfer1::DynamicPluginTensorDesc* in, int nbInputs, const nvinfer1::DynamicPluginTensorDesc* out, int nbOutputs) override {
+
+    }
+
+    size_t getWorkspaceSize(const nvinfer1::PluginTensorDesc* inputs, int nbInputs, const PluginTensorDesc* outputs, int nbOutputs) const override {
+
+    }
+
+    void attachToContext(nvinfer1::cudnnContext*, nvinfer1::cublasContext*, nvinfer1::IGpuAllocator*) override {}
+
+    void detachFromContext() override {}
+
+    int enqueue(const nvinfer1::PluginTensorDesc* inputDesc, const nvinfer1::PluginTensorDesc* outputDesc, const void *const *inputs, 
+                                                                                                           void *const *outputs, void *workspace, 
+                                                                                                           cudaStream_t stream) override {
+                                                                                                               
+    }
+
+
+
+
+private:
+    std::string name;
+    std::vector<int64_t> in_shape;
+    std::vector<int64_t> out_shape;
+    std::string mode;
+    bool align_corners;
+
+    nvinfer1::DataType dtype;
+}
+
+
+class InterpolatePluginCreator : public nvinfer1::IPluginCreator {
+public:
+    InterpolatePluginCreator() {}
+
+    int getTensorRTVersion() const override {
+        return NV_TENSORRT_MAJOR;
+    }
+
+    const char *getPluginNamespace() const override {
+        return "trtorch";
+    }
+
+    void setPluginNamespace(const char* libNamespace) override {}
+    
+    const char *getPluginName() const override {
+        return "interpolate";
+    }
+
+    const char *getPluginVersion() const override {
+        return "1";
+    }
+
+    nvinfer1::IPluginV2* createPlugin(const char* name, const nvinfer1::PluginFieldCollection *fc) override {
+        return nullptr;
+    }
+
+    nvinfer1::IPluginV2* createPlugin(const char* name, std::vector<int64_t> in_shape, std::vector<int64_t> out_shape, std::string mode, bool align_corners) {
+        return new InterpolatePlugin(name, in_shape, out_shape, mode, align_corners);
+    }
+
+    nvinfer1::IPluginV2* deserializePlugin(const char* name, const void *serialData, size_t serialLength) override {
+        return nullptr;
+    }
+
+    const nvinfer1::PluginFieldCollection* getFieldNames() override {
+        return nullptr;
+    }
+}
+
+REGISTER_TENSORRT_PLUGIN(InterpolatePluginCreator);
+
+} // namespace
+} // namespace plugins
+} // namespace impl
+} // namespace converters
+} // namespace conversion
+} // namespace core
+} // namespace trtorch
+