From a0fa523a96638d76cc90a366473f7be2ad9e17e5 Mon Sep 17 00:00:00 2001
From: Vipin Thomas <vipin.thomas@stud.th-deg.de>
Date: Fri, 11 Jun 2021 02:49:10 +0000
Subject: [PATCH] Update pixel.cpp
---
pixel.cpp | 48 +++++++++++++++++++++++-------------------------
1 file changed, 23 insertions(+), 25 deletions(-)
diff --git a/pixel.cpp b/pixel.cpp
index d96b31f..3c59ebe 100644
--- a/pixel.cpp
+++ b/pixel.cpp
@@ -1,7 +1,7 @@
#include <iostream>
#include <hls_stream.h>
#include <ap_axi_sdata.h>
-#include <math.h>
+#include<math.h>
using namespace std;
@@ -13,29 +13,27 @@ static int decrpyt=0;
static long long asciiNum=0;
static int asciiVal=0;
-long long convert(int n);
+long long convert(int n);
long long toAscii(chr number);
int convertBinInt(long long n);
-char stegnoDcrypt(int data);
-void stegno(char c);
+void stegnoDcrypt(int data);
+int stegno(int c,int data,int position1,int position2);
void pixel(
ap_int<32> position1,
ap_int<32> position2,
- ap_int<32> w,
- ap_int<32> h,
+ ap_int<32> stream_count,
ap_int<32> character,
- ap_int<32> selector,
+ ap_int<32> selector,
hls::stream< pkt_t > &din,
hls::stream< pkt_t > &dout
) {
#pragma HLS INTERFACE ap_ctrl_none port=return
#pragma HLS INTERFACE s_axilite port=position1
#pragma HLS INTERFACE s_axilite port=position2
- #pragma HLS INTERFACE s_axilite port=w
- #pragma HLS INTERFACE s_axilite port=h
+ #pragma HLS INTERFACE s_axilite port=stream_count
#pragma HLS INTERFACE s_axilite port=character
- #pragma HLS INTERFACE s_axilite port=selector //switch for encrypt and decrypt
+ #pragma HLS INTERFACE s_axilite port=selector
#pragma HLS INTERFACE axis port=din
#pragma HLS INTERFACE axis port=dout
@@ -44,7 +42,7 @@ void pixel(
switch(selector)
{
case 0:
- stegno(character);
+ pkt.data=stegno(character,pkt.data,position1,position2);
break;
case 1:
@@ -57,10 +55,10 @@ void pixel(
count_streams++;
- if (count_streams == w*h*3){
+ if (count_streams == stream_count){
count_streams = 0;
asciiVal= convertBinInt(asciiNum);
- pkt.data=asciiVal
+ pkt.data=asciiVal;
dout.write(pkt);
}
@@ -71,27 +69,27 @@ void pixel(
dout.write(pkt);
}
-void stegno(char c){
-
- // to check
- charIn=toAscii(c);
- if(count_streams > 3 * (position1 - 1) && count_streams < 3 * (position2)){
+int stegno(int c,int data,int position1,int position2){
+
+ charIn=toAscii((char)c);
+ if((count_streams > 3 * (position1 - 1)) && (count_streams < 3 * (position2))){
addNum=charIn%10;
charIn=(int)charIn/10;
- pkt.data=convertBinInt((convert(pkt.data)/10)*10+addNum);
-
+
}
-
+
+ return convertBinInt((convert(data)/10)*10+addNum);
+
}
-long long stegnoDcrypt(int data){
+void stegnoDcrypt(int data){
decrpyt=convert(data)%10;
asciiNum=asciiNum*10+decrpyt;
-
+
}
-
+
long long convert(int n) {
long long bin = 0;
@@ -119,5 +117,5 @@ int convertBinInt(long long n) {
long long toAscii(char c) {
int n=(int)c;
long long bin = convert(n);
- return bin;
+ return bin;
}
--
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