DataConditioner.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2015-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */
 
#ifndef DW_DNN_DATACONDITIONER_H_
#define DW_DNN_DATACONDITIONER_H_
 
#include <dw/core/context/Context.h>
#include <dw/core/base/Types.h>
#include <dw/image/Image.h>
#include <dw/dnn/tensor/Tensor.h>
 
typedef enum cudaTextureAddressMode cudaTextureAddressMode;
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct dwDataConditionerParams
{
    float32_t meanValue[DW_MAX_IMAGE_PLANES];
    float32_t stdev[DW_MAX_IMAGE_PLANES];
    const dwImageCUDA* meanImage;
    bool splitPlanes;
    float32_t scaleCoefficient;
    bool ignoreAspectRatio;
    bool doPerPlaneMeanNormalization;
    uint32_t channelIdx[DW_MAX_IMAGE_PLANES];
    bool convertToGray;
} dwDataConditionerParams;
 
typedef struct dwDataConditionerObject* dwDataConditionerHandle_t;
 
DW_API_PUBLIC
dwStatus dwDataConditioner_initParams(dwDataConditionerParams* const dataConditionerParams);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_initialize(dwDataConditionerHandle_t* const obj,
                                      dwBlobSize const* const networkInputBlobSize,
                                      uint32_t const maxNumImages,
                                      dwDataConditionerParams const* const dataConditionerParams,
                                      cudaStream_t const stream, dwContextHandle_t const ctx);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_initializeFromTensorProperties(dwDataConditionerHandle_t* const obj,
                                                          dwDNNTensorProperties const* const outputProperties,
                                                          uint32_t const maxNumImages,
                                                          dwDataConditionerParams const* const dataConditionerParams,
                                                          cudaStream_t const stream, dwContextHandle_t const ctx);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_setCUDAStream(cudaStream_t const stream, dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_getCUDAStream(cudaStream_t* const stream, dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_reset(dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_release(dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_prepareDataRaw(float32_t* const dOutputImage, dwImageCUDA const* const* const inputImages,
                                          uint32_t const numImages, dwRect const* const roi,
                                          cudaTextureAddressMode const addressMode, dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_prepareData(dwDNNTensorHandle_t const tensorOutput,
                                       dwImageHandle_t const* const inputImages,
                                       uint32_t const numImages, dwRect const* const rois,
                                       cudaTextureAddressMode const addressMode, dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_getOutputSize(dwBlobSize* const outputBlobSize,
                                         dwDataConditionerHandle_t const obj);
 
DW_API_PUBLIC
dwStatus dwDataConditioner_outputPositionToInput(float32_t* const outputX, float32_t* const outputY,
                                                 float32_t const inputX, float32_t const inputY,
                                                 dwRect const* const roi, dwDataConditionerHandle_t const obj);
#ifdef __cplusplus
}
#endif
 
#endif // DW_DNN_DATACONDITIONER_H_