chore: import upstream snapshot with attribution

plugin/api/CMakeLists.txt

@@ -0,0 +1,18 @@
+#
+# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+add_plugin_source(inferPlugin.cpp)

plugin/api/inferPlugin.cpp

@@ -0,0 +1,210 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "NvInfer.h"
+#include "NvInferPlugin.h"
+#include "common/checkMacrosPlugin.h"
+#include "common/plugin.h"
+#include "roiAlignPlugin/roiAlignPlugin.h"
+#include "cropAndResizePlugin/cropAndResizePlugin.h"
+#include "decodeBbox3DPlugin/decodeBbox3D.h"
+#include "detectionLayerPlugin/detectionLayerPlugin.h"
+#include "efficientNMSPlugin/efficientNMSPlugin.h"
+#include "efficientNMSPlugin/tftrt/efficientNMSExplicitTFTRTPlugin.h"
+#include "efficientNMSPlugin/tftrt/efficientNMSImplicitTFTRTPlugin.h"
+#include "flattenConcat/flattenConcat.h"
+#include "generateDetectionPlugin/generateDetectionPlugin.h"
+#include "gridAnchorPlugin/gridAnchorPlugin.h"
+#include "instanceNormalizationPlugin/instanceNormalizationPlugin.h"
+#include "instanceNormalizationPlugin/instanceNormalizationPluginLegacy.h"
+#include "modulatedDeformConvPlugin/modulatedDeformConvPlugin.h"
+#include "modulatedDeformConvPlugin/modulatedDeformConvPluginLegacy.h"
+#include "multilevelCropAndResizePlugin/multilevelCropAndResizePlugin.h"
+#include "multilevelProposeROI/multilevelProposeROIPlugin.h"
+#include "multiscaleDeformableAttnPlugin/multiscaleDeformableAttnPlugin.h"
+#include "multiscaleDeformableAttnPlugin/multiscaleDeformableAttnPluginLegacy.h"
+#include "nvFasterRCNN/nvFasterRCNNPlugin.h"
+#include "pillarScatterPlugin/pillarScatter.h"
+#include "priorBoxPlugin/priorBoxPlugin.h"
+#include "proposalLayerPlugin/proposalLayerPlugin.h"
+#include "pyramidROIAlignPlugin/pyramidROIAlignPlugin.h"
+#include "regionPlugin/regionPlugin.h"
+#include "reorgPlugin/reorgPlugin.h"
+#include "resizeNearestPlugin/resizeNearestPlugin.h"
+#include "roiAlignPlugin/roiAlignPlugin.h"
+#include "roiAlignPlugin/roiAlignPluginLegacy.h"
+#include "scatterElementsPlugin/scatterElementsPlugin.h"
+#include "scatterElementsPlugin/scatterElementsPluginLegacy.h"
+#include "scatterPlugin/scatterPlugin.h"
+#include "topkLastDimPlugin/topkLastDimPlugin.h"
+#include "voxelGeneratorPlugin/voxelGenerator.h"
+#include <algorithm>
+#include <array>
+#include <iostream>
+#include <memory>
+#include <mutex>
+#include <stack>
+#include <unordered_set>
+using namespace nvinfer1;
+using namespace nvinfer1::plugin;
+using namespace nvinfer1::pluginInternal;
+
+using nvinfer1::plugin::RPROIParams;
+
+namespace nvinfer1::plugin
+{
+
+extern ILogger* gLogger;
+
+} // namespace nvinfer1::plugin
+
+namespace
+{
+// This singleton ensures that each plugin is only registered once for a given
+// namespace and type, and attempts of duplicate registration are ignored.
+class PluginCreatorRegistry
+{
+public:
+    static PluginCreatorRegistry& getInstance()
+    {
+        static PluginCreatorRegistry instance;
+        return instance;
+    }
+
+    template <typename CreatorType>
+    void addPluginCreator(void* logger, char const* libNamespace)
+    {
+        // Make accesses to the plugin creator registry thread safe
+        std::lock_guard<std::mutex> lock(mRegistryLock);
+
+        std::string errorMsg;
+        std::string verboseMsg;
+
+        std::unique_ptr<CreatorType> pluginCreator{new CreatorType{}};
+        pluginCreator->setPluginNamespace(libNamespace);
+
+        nvinfer1::plugin::gLogger = static_cast<nvinfer1::ILogger*>(logger);
+        std::string pluginType = std::string{pluginCreator->getPluginNamespace()}
+            + "::" + std::string{pluginCreator->getPluginName()} + " version "
+            + std::string{pluginCreator->getPluginVersion()};
+
+        if (mRegistryList.find(pluginType) == mRegistryList.end())
+        {
+            bool status = getPluginRegistry()->registerCreator(*pluginCreator, libNamespace);
+            if (status)
+            {
+                mRegistry.push(std::move(pluginCreator));
+                mRegistryList.insert(pluginType);
+                verboseMsg = "Registered plugin creator - " + pluginType;
+            }
+            else
+            {
+                errorMsg = "Could not register plugin creator -  " + pluginType;
+            }
+        }
+        else
+        {
+            verboseMsg = "Plugin creator already registered - " + pluginType;
+        }
+
+        if (logger)
+        {
+            if (!errorMsg.empty())
+            {
+                nvinfer1::plugin::gLogger->log(ILogger::Severity::kERROR, errorMsg.c_str());
+            }
+            if (!verboseMsg.empty())
+            {
+                nvinfer1::plugin::gLogger->log(ILogger::Severity::kVERBOSE, verboseMsg.c_str());
+            }
+        }
+    }
+
+    ~PluginCreatorRegistry()
+    {
+        std::lock_guard<std::mutex> lock(mRegistryLock);
+
+        // Release pluginCreators in LIFO order of registration.
+        while (!mRegistry.empty())
+        {
+            mRegistry.pop();
+        }
+        mRegistryList.clear();
+    }
+
+private:
+    PluginCreatorRegistry() {}
+
+    std::mutex mRegistryLock;
+    std::stack<std::unique_ptr<IPluginCreatorInterface>> mRegistry;
+    std::unordered_set<std::string> mRegistryList;
+
+public:
+    PluginCreatorRegistry(PluginCreatorRegistry const&) = delete;
+    void operator=(PluginCreatorRegistry const&) = delete;
+};
+
+template <typename CreatorType>
+void initializePlugin(void* logger, char const* libNamespace)
+{
+    PluginCreatorRegistry::getInstance().addPluginCreator<CreatorType>(logger, libNamespace);
+}
+
+} // namespace
+// New Plugin APIs
+
+extern "C"
+{
+    bool initLibNvInferPlugins(void* logger, char const* libNamespace)
+    {
+        initializePlugin<nvinfer1::plugin::ROIAlignV3PluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::CropAndResizeDynamicPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::InstanceNormalizationV3PluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ScatterElementsPluginV3Creator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::MultiscaleDeformableAttnPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ModulatedDeformableConvPluginDynamicCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::DecodeBbox3DPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::DetectionLayerPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::EfficientNMSExplicitTFTRTPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::EfficientNMSImplicitTFTRTPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::EfficientNMSPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::FlattenConcatPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::GenerateDetectionPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::GridAnchorPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::GridAnchorRectPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::InstanceNormalizationPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::InstanceNormalizationPluginCreatorV2>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ModulatedDeformableConvPluginDynamicLegacyCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::MultilevelCropAndResizePluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::MultilevelProposeROIPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::MultiscaleDeformableAttnPluginCreatorLegacy>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::PillarScatterPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::PriorBoxPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ProposalLayerPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::PyramidROIAlignPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::RegionPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ReorgDynamicPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ReorgStaticPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ResizeNearestPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ROIAlignPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::RPROIPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ScatterElementsPluginV2Creator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::ScatterNDPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::TopkLastDimPluginCreator>(logger, libNamespace);
+        initializePlugin<nvinfer1::plugin::VoxelGeneratorPluginCreator>(logger, libNamespace);
+        return true;
+    }
+} // extern "C"