#include"ac.h"

extern "C" void filter(cv::Mat  &frame) {
    static constexpr int MAX = 4;
    static ac::MatrixCollection<MAX> collection;
    collection.shiftFrames(frame);
    static int color[3] = {0,0,0};
    int off = 0;
    static int r = rand()%3;
     for(int z = 0; z < frame.rows; ++z) {
         for(int i = 0; i < frame.cols; ++i) {
             cv::Vec3b &pixel = frame.at<cv::Vec3b>(z, i);
             cv::Mat &m = collection.frames[off];
             cv::Vec3b pix = m.at<cv::Vec3b>(z, i);
             color[r] += static_cast<unsigned char>((pixel[r] * 0.5) + (pix[r] * 0.5));
             if(off > MAX-1) {
                 off = 0;
                 color[r] = color[r] ^ pix[r];
             }
             for(int q = 0; q < 3; ++q)
                 pixel[q] = static_cast<unsigned char>((0.5 * pixel[q]) + (0.5 * color[q]));
        }
        ++off;
    }
 
}