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#include <stdio.h>
#include <hls_stream.h>
#include <ap_axi_sdata.h>
#include<math.h>
#include <string.h>
using namespace std;
typedef ap_axis<32,0,0,0> pkt_t;
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;
int lastDecimalVal;
long long convert(int n);
int convertBinInt(long long n);
void decrypt(int data);
void toAscii(char *c);
int getDecimal(int n);
void pixel(ap_int<32> in_decimal,
ap_int<32> selector,
ap_int<32> position1,
ap_int<32> position2,
ap_int<32> stream_count,
ap_int<32> &ascii,
hls::stream< pkt_t > &din,
hls::stream< pkt_t > &dout
) {
#pragma HLS INTERFACE ap_ctrl_none port=return
#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 s_axilite port=stream_count
#pragma HLS INTERFACE s_axilite port=ascii
#pragma HLS INTERFACE axis port=din
#pragma HLS INTERFACE axis port=dout
pkt_t pkt=din.read();
// toAscii(key);
switch(selector)
{
case 0:
if (count_streams == 0){
final_char=0;
decNum = in_decimal;
}
//123456321
if((count_streams >= 3 * (position1 - 1)) && (count_streams < 3 * (position2) - 1)){
// addNum=0;
addNum=0;
if(decimalCounter % 8 == 0){
lastDecimalVal = getDecimal(decNum);
decNum /= 1000;
charIn=convert(lastDecimalVal);
}
addNum=charIn%10;
charIn=(int)charIn/10;
// if(decNum !=0 ){
// pkt.data += getDecimal(decNum);
// decNum = decNum/1000;
// }
if(pkt.data % 2 == 0 && addNum == 1){
pkt.data += 1;
}else if(pkt.data % 2 != 0 && addNum == 0){
pkt.data -= 1;
}
decimalCounter++;
}
break;
case 1:
if((count_streams >= 3 * (position1 - 1)) && (count_streams < 3 * (position2)-1)){
decrypt(pkt.data);
}
break;
default:
break;
}
count_streams++;
if (count_streams == stream_count){
count_streams = 0;
charIn=0;
addNum=0;
ascii=0;
if(selector == 1){
ascii= convertBinInt(final_char);
final_char=0;
}
}
dout.write(pkt);
}
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 % 1000;
return num;
}