USB_UVC_DETECT/RGAColorTransfer/RgaColorTransfer.h

#ifndef RGA_COLOR_TRANSFER_H
#define RGA_COLOR_TRANSFER_H

#include <rga/RgaApi.h>
#include <rga/im2d.hpp>
#include <rga/RgaUtils.h>
#include <rga/RgaMutex.h>
#include <opencv4/opencv2/opencv.hpp>

typedef struct Rga_Buffer
{
    unsigned char *pBuffer{nullptr}; // Buffer address
    int accFenceFd{0};               // Fence file descriptor for releasing the buffer
    int releaseFenceFd{0};           // Fence file descriptor for acquiring the buffer
    int nSrcFormt;                   // Source image format
    rga_buffer_handle_t hSrc;        // Source image buffer handle
    rga_buffer_t SrcImg;             // Source image buffer structure

    int nWidth;     // Image width
    int nHeight;    // Image height
    uint32_t nType; // Image format

    bool RegisterResource(unsigned char *pBuffer, int nWidth, int nHeight, uint32_t nType)
    {
        if (pBuffer == nullptr)
            return false;
        im_handle_param_t srcParam;
        srcParam.width = nWidth;
        srcParam.height = nHeight;
        srcParam.format = nType;
        hSrc = importbuffer_virtualaddr(pBuffer, &srcParam);
        SrcImg = wrapbuffer_handle(hSrc, nWidth, nHeight, nType);
        this->nWidth = nWidth;
        this->nHeight = nHeight;
        this->nType = nType;
        this->pBuffer = pBuffer;
        return true;
    }

    void ReleaseResource()
    {
        if (releaseFenceFd != 0)
        {
            imsync(releaseFenceFd);
            releaseFenceFd = 0;
        }

        int ret = 0;
        ret = releasebuffer_handle(hSrc);
        if (ret != 0)
        {
            printf("releasebuffer_handle failed, ret = %d\n", ret);
        }
        accFenceFd = 0;
    }

} RGA_BUFFER, *PRGA_BUFFER;

class RgaColorTransfer
{
public:
    RgaColorTransfer();
    ~RgaColorTransfer();

    static RgaColorTransfer *getInstance()
    {
        if (m_instance == nullptr)
        {
            m_instance = new RgaColorTransfer();
        }
        return m_instance;
    }

    void setSrc(void *pbuffer, int nWidth, int nHeight, uint32_t nType)
    {
        if (m_Src != nullptr)
            m_Src->ReleaseResource();

        m_Src->RegisterResource((unsigned char *)pbuffer, nWidth, nHeight, nType);
    }
    void setDst(void *pbuffer, int nWidth, int nHeight, uint32_t nType)
    {
        if (m_Dst != nullptr)
            m_Dst->ReleaseResource();

        m_Dst->RegisterResource((unsigned char *)pbuffer, nWidth, nHeight, nType);
    }
    bool copyBuffer(cv::Rect srcRect, cv::Rect dstRect);
    bool transfer(int nType);
    bool resizeImage(cv::Rect srcRect, cv::Rect dstRect);
    void ReleaseResource();

private:
    static RgaColorTransfer *m_instance; // 单例模式的实例

    PRGA_BUFFER m_Src;
    PRGA_BUFFER m_Dst;
    int m_releaseFenceFd;
    int m_accFenceFd;
};

int resize_image(void *src_buf, int src_width, int src_height, void *dst_buf, int dst_width, int dst_height);


#endif // RGA_COLOR_TRANSFER_H