Program Listing for File OpGammaContrast.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2022-2023 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 CVCUDA_GAMMA_CONTRAST_HPP
#define CVCUDA_GAMMA_CONTRAST_HPP

#include "IOperator.hpp"
#include "OpGammaContrast.h"

#include <cuda_runtime.h>
#include <nvcv/ImageBatch.hpp>
#include <nvcv/Tensor.hpp>
#include <nvcv/alloc/Requirements.hpp>

namespace cvcuda {

class GammaContrast final : public IOperator
{
public:
    explicit GammaContrast(const int32_t maxVarShapeBatchSize, const int32_t maxVarShapeChannelCount);

    ~GammaContrast();

    void operator()(cudaStream_t stream, const nvcv::ImageBatch &in, const nvcv::ImageBatch &out,
                    const nvcv::Tensor &gamma);

    virtual NVCVOperatorHandle handle() const noexcept override;

private:
    NVCVOperatorHandle m_handle;
};

inline GammaContrast::GammaContrast(const int32_t maxVarShapeBatchSize, const int32_t maxVarShapeChannelCount)
{
    nvcv::detail::CheckThrow(cvcudaGammaContrastCreate(&m_handle, maxVarShapeBatchSize, maxVarShapeChannelCount));
    assert(m_handle);
}

inline GammaContrast::~GammaContrast()
{
    nvcvOperatorDestroy(m_handle);
    m_handle = nullptr;
}

inline void GammaContrast::operator()(cudaStream_t stream, const nvcv::ImageBatch &in, const nvcv::ImageBatch &out,
                                      const nvcv::Tensor &gamma)
{
    nvcv::detail::CheckThrow(
        cvcudaGammaContrastVarShapeSubmit(m_handle, stream, in.handle(), out.handle(), gamma.handle()));
}

inline NVCVOperatorHandle GammaContrast::handle() const noexcept
{
    return m_handle;
}

} // namespace cvcuda
#endif // CVCUDA_GAMMA_CONTRAST_HPP