pillarScatter.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 _PILLAR_SCATTER_H_
#define _PILLAR_SCATTER_H_

#include "NvInferPlugin.h"
#include "kernel.h"
#include <cuda_runtime_api.h>
#include <string>
#include <vector>

namespace nvinfer1
{
namespace plugin
{

class PillarScatterPlugin : public nvinfer1::IPluginV2DynamicExt
{
public:
    PillarScatterPlugin() = delete;
    PillarScatterPlugin(const void* data, size_t length);
    PillarScatterPlugin(size_t h, size_t w);
    // IPluginV2DynamicExt Methods
    nvinfer1::IPluginV2DynamicExt* clone() const noexcept override;
    nvinfer1::DimsExprs getOutputDimensions(int outputIndex, 
        const nvinfer1::DimsExprs* inputs, int nbInputs,
        nvinfer1::IExprBuilder& exprBuilder) noexcept override;
    bool supportsFormatCombination(
        int pos, const nvinfer1::PluginTensorDesc* inOut, 
        int nbInputs, int nbOutputs) noexcept override;
    void configurePlugin(const nvinfer1::DynamicPluginTensorDesc* in, int nbInputs,
        const nvinfer1::DynamicPluginTensorDesc* out, int nbOutputs) noexcept override;
    size_t getWorkspaceSize(const nvinfer1::PluginTensorDesc* inputs, int nbInputs,
        const nvinfer1::PluginTensorDesc* outputs, int nbOutputs) const noexcept override;
    int enqueue(const nvinfer1::PluginTensorDesc* inputDesc, 
        const nvinfer1::PluginTensorDesc* outputDesc,
        const void* const* inputs, void* const* outputs, 
        void* workspace, cudaStream_t stream) noexcept override;
    // IPluginV2Ext Methods
    nvinfer1::DataType getOutputDataType(int index, const nvinfer1::DataType* inputTypes, 
        int nbInputs) const 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* pluginNamespace) noexcept override;
    const char* getPluginNamespace() const noexcept override;

private:
    std::string mNamespace;
    // the y -- output size of the 2D backbone network
    size_t feature_y_size_;
    // the x -- output size of the 2D backbone network
    size_t feature_x_size_;
};

class PillarScatterPluginCreator : public nvinfer1::IPluginCreator
{
public:
    PillarScatterPluginCreator();
    const char* getPluginName() const noexcept override;
    const char* getPluginVersion() const noexcept override;
    const nvinfer1::PluginFieldCollection* getFieldNames() noexcept override;
    nvinfer1::IPluginV2* createPlugin(const char* name, const nvinfer1::PluginFieldCollection* fc) noexcept override;
    nvinfer1::IPluginV2* deserializePlugin(const char* name, const void* serialData, size_t serialLength) noexcept override;
    void setPluginNamespace(const char* pluginNamespace) noexcept override;
    const char* getPluginNamespace() const noexcept override;

private:
    static nvinfer1::PluginFieldCollection mFC;
    static std::vector<nvinfer1::PluginField> mPluginAttributes;
    std::string mNamespace;
};

} // namespace plugin
} // namespace nvinfer1

#endif