SDL_GPUTextureTransferInfo.3type - Man Page

#include <SDL3/SDL_gpu.h>

typedef struct SDL_GPUTextureTransferInfo
{
    SDL_GPUTransferBuffer *transfer_buffer;  /**< The transfer buffer used in the transfer operation. */
    Uint32 offset;                           /**< The starting byte of the image data in the transfer buffer. */
    Uint32 pixels_per_row;                   /**< The number of pixels from one row to the next. */
    Uint32 rows_per_layer;                   /**< The number of rows from one layer/depth-slice to the next. */
} SDL_GPUTextureTransferInfo;

This struct is available since SDL 3.2.0.

SDL_UploadToGPUTexture(3), SDL_DownloadFromGPUTexture(3)