roIAlign2Plugin.h

/*
 * SPDX-FileCopyrightText: Copyright (c) 1993-2022 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.
 */
#ifndef ROIALIGN2_PLUGIN_H
#define ROIALIGN2_PLUGIN_H

#include <cassert>
#include <cuda_runtime_api.h>
#include <string.h>
#include <string>
#include <vector>

#include "NvInfer.h"
#include "NvInferPlugin.h"
#include "kernel.h"
#include "maskRCNNKernels.h"
#include "mrcnn_config.h"
#include "plugin.h"

using namespace nvinfer1::plugin;

// One of the preferred ways of making TensorRT to be able to see
// our custom layer requires extending IPluginV2Ext and BaseCreator classes.
// For requirements for overriden functions, check TensorRT API docs.
namespace nvinfer1
{
namespace plugin
{

class RoIAlign2DynamicPlugin : public IPluginV2DynamicExt
{
public:
    RoIAlign2DynamicPlugin(const std::string name);

    RoIAlign2DynamicPlugin(const std::string name, int pooledSize, int transformCoords, bool absCoords, bool swapCoords,
        int samplingRatio, bool legacy, int imageSize);

    RoIAlign2DynamicPlugin(const std::string name, int pooledSize, int transformCoords, bool absCoords, bool swapCoords,
        int samplingRatio, bool legacy, int imageSize, int featureLength, int roiCount, int inputWidth, int inputHeight);

    RoIAlign2DynamicPlugin(const std::string name, const void* data, size_t length);

    // It doesn't make sense to make RoIAlign2DynamicPlugin without arguments, so we delete default constructor.
    RoIAlign2DynamicPlugin() noexcept = delete;

    ~RoIAlign2DynamicPlugin() noexcept override;

    // IPluginV2 methods
    const char* getPluginType() const noexcept override;
    const char* getPluginVersion() const noexcept override;
    int getNbOutputs() const noexcept override;
    int initialize() noexcept override;
    void terminate() noexcept override;
    size_t getSerializationSize() const noexcept override;
    void serialize(void* buffer) const noexcept override;
    void destroy() noexcept override;
    void setPluginNamespace(const char* libNamespace) noexcept override;
    const char* getPluginNamespace() const noexcept override;

    // IPluginV2Ext methods
    DataType getOutputDataType(int index, const nvinfer1::DataType* inputType, int nbInputs) const noexcept override;

    // IPluginV2DynamicExt methods
    IPluginV2DynamicExt* clone() const noexcept override;
    DimsExprs getOutputDimensions(
        int outputIndex, const DimsExprs* inputs, int nbInputs, IExprBuilder& exprBuilder) noexcept override;
    bool supportsFormatCombination(
        int pos, const PluginTensorDesc* inOut, int nbInputs, int nbOutputs) noexcept override;
    void configurePlugin(const DynamicPluginTensorDesc* in, int nbInputs, const DynamicPluginTensorDesc* out,
        int nbOutputs) noexcept override;
    size_t getWorkspaceSize(const PluginTensorDesc* inputs, int nbInputs, const PluginTensorDesc* outputs,
        int nbOutputs) const noexcept override;
    int enqueue(const PluginTensorDesc* inputDesc, const PluginTensorDesc* outputDesc, const void* const* inputs,
        void* const* outputs, void* workspace, cudaStream_t stream) noexcept override;

private:
    const std::string mLayerName;
    std::string mNamespace;
    int mPooledSize;
    int mImageSize;
    int mTransformCoords;
    bool mAbsCoords;
    bool mSwapCoords;
    int mSamplingRatio;
    bool mIsLegacy{false};
    int mFeatureLength;
    int mROICount;
    int mInputWidth;
    int mInputHeight;
};

class RoIAlign2BasePluginCreator : public BaseCreator
{
public:
    RoIAlign2BasePluginCreator() noexcept;
    ~RoIAlign2BasePluginCreator() noexcept override = default;
    const char* getPluginName() const noexcept override;
    const char* getPluginVersion() const noexcept override;
    const PluginFieldCollection* getFieldNames() noexcept override;

protected:
    static PluginFieldCollection mFC;
    static std::vector<PluginField> mPluginAttributes;
    std::string mPluginName;
};

class RoIAlign2PluginCreator : public RoIAlign2BasePluginCreator
{
public:
    RoIAlign2PluginCreator() noexcept;
    ~RoIAlign2PluginCreator() noexcept override = default;
    IPluginV2Ext* createPlugin(const char* name, const PluginFieldCollection* fc) noexcept override;
    IPluginV2Ext* deserializePlugin(const char* name, const void* serialData, size_t serialLength) noexcept override;
};

class RoIAlign2DynamicPluginCreator : public RoIAlign2BasePluginCreator
{
public:
    RoIAlign2DynamicPluginCreator() noexcept;
    ~RoIAlign2DynamicPluginCreator() noexcept override = default;
    IPluginV2DynamicExt* createPlugin(const char* name, const PluginFieldCollection* fc) noexcept override;
    IPluginV2DynamicExt* deserializePlugin(
        const char* name, const void* serialData, size_t serialLength) noexcept override;
};

} // namespace plugin

} // namespace nvinfer1

#endif // ROIALIGN2_PLUGIN_H