pixel_original.cpp

	#include "pixel.hpp"
	static int count_streams = 0;
	static long long charIn=0;
	static long long final_char=0;
	int addNum=0;

	static int decNum = 0;
	static int decimalCounter = 0;
	static int decimalOut = 0;
	int lastDecimalVal;

	pkt_t tmpA;

	void pixel(ap_int<32> &in_decimal,
	        ap_int<32> selector,
			ap_int<32> position1,
			ap_int<32> position2,
			hls::stream< pkt_t > &din,
			hls::stream< pkt_t > &dout

	) {


		#pragma HLS INTERFACE s_axilite port=in_decimal
		#pragma HLS INTERFACE s_axilite port=selector
		#pragma HLS INTERFACE s_axilite port=position1
		#pragma HLS INTERFACE s_axilite port=position2
		#pragma HLS INTERFACE axis port=din
		#pragma HLS INTERFACE axis port=dout

		din >> tmpA;

		switch(selector)
		    {
		        case 0:

		            if (count_streams == 0){
		                final_char=0;
		                decNum = in_decimal;
		            }
		            //123456321
		            if((count_streams >= (position1 - 1)) && (count_streams < position2)){
		                // addNum=0;
		                addNum=0;
		                if(decimalCounter % 8 == 0){
		                    lastDecimalVal = getDecimal(decNum);
		                    decNum /= 100;
		                    charIn=convert(lastDecimalVal);

		                }
		                addNum=charIn%10;
				        charIn=(int)charIn/10;


		                // if(decNum !=0 ){
		                //     tmpA.data += getDecimal(decNum);
				        //     decNum = decNum/1000;
		                // }

		                if(tmpA.data % 2 == 0 && addNum == 1){
		                    tmpA.data += 1;

		                }else if(tmpA.data % 2 != 0 && addNum == 0){
		                    tmpA.data -= 1;

		                }
		                decimalCounter++;

		            }

		            break;

		        case 1:
		            if((count_streams >= (position1 - 1)) && (count_streams < position2)){


		                decrypt(tmpA.data);
		                decimalCounter++;
		                if(decimalCounter == 8){
		                    decimalOut=decimalOut*100+convertBinInt(final_char);
		                    decimalCounter=0;
		                    final_char=0;
		                }


		            }
		            break;

		        default:
		            break;
		    }

			count_streams++;

			if (count_streams == position2-1){
				count_streams = 0;
		        charIn=0;
		        addNum=0;
		        decimalCounter=0;
		        if(selector == 1){
		            final_char=0;
		            in_decimal=decimalOut;
		            decimalOut=0;
		        }

			}


	    if(count_streams == position2-1){
	        tmpA.last = 1;
	    }
	    tmpA.strb = 0xf;

	    dout << tmpA;
	}


	long long convert(int n) {
	    long long bin = 0;
	    int rem, i = 1, step = 1;
	    while (n != 0) {
	        rem = n % 2;
	        n /= 2;
	        bin += rem * i;
	        i *= 10;
	    }
	    return bin;
	}

	void decrypt(int data) {
	int bit;
	if(data % 2 == 0){
	   bit = 0;
	}else if(data % 2 != 0){
	    bit=1;
	}
	final_char= final_char*10+bit;

	}

	int convertBinInt(long long n) {
	int dec = 0, i = 7, b=0,rem=0;
	    while (n != 0) {
	        b=pow(10,i);
	        rem = n / b;
	        n =n % b;
	        dec += rem * pow(2, 7-i);
	        --i;
	    }
	    return dec;
	}

	int getDecimal(int n) {
	    int num = 0;
	    num = n % 100;
	    return num;
	    }