ImagePreProcessInfo

class ImagePreProcessInfo {
public:
    ImagePreProcessInfo()
    {
        imageWidth = 0;
        imageHeight = 0;
        originalWidth = 0;
        originalHeight = 0;
        xRatio = 1.0;
        xBias = 0.0;
        yRatio = 1.0;
        yBias = 0.0;
        x0Valid = 0.0;
        y0Valid = 0.0;
        x1Valid = 0.0;
        y1Valid = 0.0;
    }
    ImagePreProcessInfo(uint32_t width, uint32_t height)
    {
        imageWidth = width;
        imageHeight = height;
        originalWidth = width;
        originalHeight = height;
        xRatio = 1.0;
        xBias = 0.0;
        yRatio = 1.0;
        yBias = 0.0;
        x0Valid = 0.0;
        y0Valid = 0.0;
        x1Valid = width;
        y1Valid = height;
    }
    ImagePreProcessInfo(uint32_t widthResize, uint32_t heightResize, uint32_t widthOriginal, uint32_t heightOriginal)
    {
        if (!((widthOriginal == 0) || (heightOriginal == 0))) {
            xRatio = widthResize / (float)widthOriginal;
            yRatio = heightResize / (float)heightOriginal;
        } else {
            xRatio = 1.0;
            yRatio = 1.0;
        }
        imageWidth = widthResize;
        imageHeight = heightResize;
        originalWidth = widthOriginal;
        originalHeight = heightOriginal;
        xBias = 0.0;
        yBias = 0.0;
        x0Valid = 0.0;
        y0Valid = 0.0;
        x1Valid = widthResize;
        y1Valid = heightResize;
    }
    ~ImagePreProcessInfo() {}
public:
    // image
    uint32_t imageWidth = 0;           // memoryWidth
    uint32_t imageHeight = 0;          // memoryHeight
    uint32_t originalWidth = 0;           // originalWidth
    uint32_t originalHeight = 0;          // originalHeight

    // mapping parameters
    float xRatio = 1.0;
    float xBias = 0.0;
    float yRatio = 1.0;
    float yBias = 0.0;

    // valid region
    float x0Valid = 0.0;
    float y0Valid = 0.0;
    float x1Valid = 0.0;
    float y1Valid = 0.0;
};