#include "../include/MultiScaleObj.h"
#include "../include/CVUtils.h"

MultiScaleObj::MultiScaleObj(int levelNum /*= 2*/, float scaleStep /*= 0.5*/)
    : mLevelNum(levelNum)
    , mScaleStep(scaleStep)
{

}

MultiScaleObj::~MultiScaleObj()
{

}

MultiScaleImage::MultiScaleImage()
    : mpProc(NULL)
{

}

MultiScaleImage::~MultiScaleImage()
{
    if (mpProc)
    {
        delete mpProc;
    }
}

void MultiScaleImage::setBaseLevel(const Mat& img)
{
    mMultiScaleImages.resize(1);
    mMultiScaleImages[0] = img;
}

void MultiScaleImage::genMultiScale()
{
    resetMaxLevel();
    while (getLevel() >= 1)
    {
        mMultiScaleImages.push_back(resize(mMultiScaleImages.back(), mScaleStep, INTER_CUBIC));
        downLevel();
    }
}

void MultiScaleImage::proc(void *pData)
{
    resetMaxLevel();
    while (getLevel() >= 1)
    {
        const Mat& img = mMultiScaleImages[getLevel() - 1];
        (*mpProc)(img, this, pData);
        downLevel();
    }
}

cv::Mat MultiScaleImage::getImg(int level)
{
    if (level < 0 || level >= mLevelNum)
    {
        return Mat();
    }
    return mMultiScaleImages[level];
}