From 6c163aad0fdc0bf4bd00c8fcc01bc0d091b5dc1b Mon Sep 17 00:00:00 2001
From: dronus <paul.geisler@web.de>
Date: Tue, 18 Jun 2019 12:40:04 +0200
Subject: [PATCH] Test-Bilderzeugung aus Sender ausgelagert
---
.gitignore | 2 ++
sender.c | 47 +++++++++++++++++++++++++----------------------
test.c | 30 ++++++++++++++++++++++++++++++
3 files changed, 57 insertions(+), 22 deletions(-)
create mode 100644 test.c
diff --git a/.gitignore b/.gitignore
index 4b14a1b..9e2619e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
+test
sender
+
diff --git a/sender.c b/sender.c
index a0c2ed4..ebf0266 100644
--- a/sender.c
+++ b/sender.c
@@ -1,21 +1,27 @@
#include<stdio.h>
#include <stdlib.h>
#include <unistd.h>
+#include <string.h>
-
-#define WIDTH 1000
-#define HEIGHT 8
+#define WIDTH 60
+#define HEIGHT 16
int image[WIDTH*HEIGHT];
-char data[(WIDTH*HEIGHT/8)*6*4+1];
+int image_new[WIDTH*HEIGHT];
+int image_old[WIDTH*HEIGHT];
+char data[(WIDTH*HEIGHT/8)*6*4+3];
void image2data(int* image, char* data, int layout) {
- int offset = 1;
+ int offset = 3;
int x, y, xbegin, xend, xinc, mask;
int linesPerPin = HEIGHT / 8;
int pixel[8];
+ data[0]='*';
+ data[1]=0; // sync delay, sync immediately.
+ data[2]=0;
+
for (y = 0; y < linesPerPin; y++) {
if ((y & 1) == (layout ? 0 : 1)) {
// even numbered rows are left to right
@@ -62,33 +68,30 @@ int fade(int b, int a, int t)
return (rc<<0)+(gc<<8)+(bc<<16);
}
-
int main() {
-
- int old=0x000000;
while(1)
{
- long int r=rand()>>24;
- int new=r+((256-r)<<16);
- for(int t=0; t<256; t+=16)
- {
- for(int i=0; i<WIDTH*HEIGHT; i++)
- //image[i]=c+(c<<8)+(c<<16)+(c<<24);
- //image[i]=c;
- image[i]=fade(old,new,t);
- fprintf(stderr,"Data size: %i \n", (int) sizeof(data));
+ int read=fread(image_new,1,sizeof(image_new),stdin);
+ fprintf(stderr,"Sender input size: %i \n", (int)read);
+ // do a fade
+ for(int t=0; t<256; t+=1)
+ {
+ for(int i=0; i<sizeof(image)/4; i++)
+ image[i]=fade(image_old[i],image_new[i],t);
+
image2data(image,data,0);
- int written=fwrite(data,1,sizeof(data),stdout);
+ int written=fwrite(data,1,sizeof(data),stdout);
fflush(stdout);
- fprintf(stderr,"Data written: %i \n", written);
+ fprintf(stderr,"Sender output written: %i \n", written);
- usleep(2000L);
- }
- old=new;
+ usleep(2000L);
+ }
+
+ memcpy(image_old,image_new,sizeof(image_old));
}
}
diff --git a/test.c b/test.c
new file mode 100644
index 0000000..4b3881b
--- /dev/null
+++ b/test.c
@@ -0,0 +1,30 @@
+#include<stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+
+#define WIDTH 60
+#define HEIGHT 16
+
+char image[WIDTH*HEIGHT*4];
+
+
+
+int main() {
+ while(1)
+ {
+
+ for(int i=0; i<WIDTH*HEIGHT; i++)
+ {
+ int c=rand() & 0x1F1F1F;
+ image[i*4+0]=(c >> 0) & 0xFF;
+ image[i*4+1]=(c >> 8) & 0xFF;
+ image[i*4+2]=(c >> 16) & 0xFF;
+ image[i*4+3]=0;
+ }
+
+ int written=fwrite(image,1,sizeof(image),stdout);
+ fflush(stdout);
+ fprintf(stderr,"Test image data written: %i \n", written);
+ }
+}
--
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