From 95c0a30e454c57a1d55d81cf06fed746db05c593 Mon Sep 17 00:00:00 2001
From: Peter Gerwinski <peter.gerwinski@hs-bochum.de>
Date: Mon, 28 Jan 2019 16:42:33 +0100
Subject: [PATCH] Beispielprogramme 28.1.2019
---
20190128/gen-pbm-3.c | 21 +++++++++++++++++++++
20190128/molpy-right.pbm | Bin 0 -> 699 bytes
20190128/show-pbm-1.c | 14 ++++++++++++++
20190128/show-pbm-2.c | 29 +++++++++++++++++++++++++++++
20190128/show-pbm-3.c | 31 +++++++++++++++++++++++++++++++
20190128/show-pbm-4.c | 31 +++++++++++++++++++++++++++++++
20190128/show-pbm-5.c | 31 +++++++++++++++++++++++++++++++
20190128/test.pbm | Bin 0 -> 41 bytes
20190128/test.png | Bin 0 -> 247 bytes
9 files changed, 157 insertions(+)
create mode 100644 20190128/gen-pbm-3.c
create mode 100644 20190128/molpy-right.pbm
create mode 100644 20190128/show-pbm-1.c
create mode 100644 20190128/show-pbm-2.c
create mode 100644 20190128/show-pbm-3.c
create mode 100644 20190128/show-pbm-4.c
create mode 100644 20190128/show-pbm-5.c
create mode 100644 20190128/test.pbm
create mode 100644 20190128/test.png
diff --git a/20190128/gen-pbm-3.c b/20190128/gen-pbm-3.c
new file mode 100644
index 0000000..91c3193
--- /dev/null
+++ b/20190128/gen-pbm-3.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+ int width = 16;
+ int height = 16;
+ FILE *f = fopen ("test.pbm", "w");
+ fprintf (f, "P4\n%d %d\n", width, height);
+
+ uint16_t data = 1;
+ for (int i = 0; i < 16; i++)
+ {
+ uint8_t right_half = data & 0x00ff;
+ uint8_t left_half = (data & 0xff00) >> 8;
+ fprintf (f, "%c%c", left_half, right_half);
+ data <<= 1;
+ }
+
+ return 0;
+}
diff --git a/20190128/molpy-right.pbm b/20190128/molpy-right.pbm
new file mode 100644
index 0000000000000000000000000000000000000000..ff1e9709d11c362c93230f19a194d87cfb43dfcb
GIT binary patch
literal 699
zcmWGA;W9KZP%t&-`i}%YAhG{r=lqKQkC6GnhQztRP>+yVz@U%BagaxF4l=MKI1VeA
z|9|+W1+lh4gYo}|zl;#hR1e1gA6_WLgLw@G4fY>yFvx>Af7lmXkpFPNK^(;SKP%u2
z<A>c-nE(HOApe(D;Q_;kuU8!G|1mK9Qw>mKD3~Rk!2O4T!A7jXf%(HnmtPDH3=ACJ
z%S0GH{M%T6fPsO5!7L<z^TWT^{|`VM-KQ?>AO2VW|Hr_<z!<!0s{DulzyJSgU|?XB
z`m^XhC_w%yFfg>Vr9*wXsFgub^glEV4ly`QX@_xkv@|L)!#GbJMb^aahbr4;Ff)X0
zK9uwSG~2F;FlGNH%!*}z2k$b*+$AtQ|1UcI@34pIS;>5<L4Xk&h@aXR9(ORvgWUH2
zzlR)y76St#nDe_rf<e54fuZ340R{%XrUC{gHwFfQKMV{EyiXYz7!NQsFnnNOU|<bw
zU|^h(z`y_s4Yo@R42%v83=9n*nUxF-3>zIF9LAL$42&F58HSJs21X_*hjA510|SEq
zNDqT3C>R+S48Xz3!UpCQJYZmCU|<BxGk^F276Tc@!2bah&|p3T!~YK;he9~~|384^
R0K}6Ad;1Ry3y1>>DgX-peaip<
literal 0
HcmV?d00001
diff --git a/20190128/show-pbm-1.c b/20190128/show-pbm-1.c
new file mode 100644
index 0000000..166b249
--- /dev/null
+++ b/20190128/show-pbm-1.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main (void)
+{
+ FILE *f = fopen ("test.pbm", "r");
+ char id[42];
+ int width, height;
+ fscanf (f, "%s", id); // should be "P4"
+ printf ("%s\n", id);
+ fscanf (f, "%d", &width);
+ fscanf (f, "%d", &height);
+ printf ("%d %d\n", width, height);
+ return 0;
+}
diff --git a/20190128/show-pbm-2.c b/20190128/show-pbm-2.c
new file mode 100644
index 0000000..0a268fb
--- /dev/null
+++ b/20190128/show-pbm-2.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+ FILE *f = fopen ("test.pbm", "r");
+ char id[42];
+ int width, height;
+ fscanf (f, "%s", id); // should be "P4"
+ fscanf (f, "%d", &width);
+ fscanf (f, "%d", &height);
+
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < (width + 7) / 8; x++)
+ {
+ uint8_t data;
+ fscanf (f, "%c", &data);
+ for (int i = 0; i < 7; i++)
+ if (data & (1 << i))
+ printf ("*");
+ else
+ printf (" ");
+ }
+ printf ("\n");
+ }
+
+ return 0;
+}
diff --git a/20190128/show-pbm-3.c b/20190128/show-pbm-3.c
new file mode 100644
index 0000000..dc0547b
--- /dev/null
+++ b/20190128/show-pbm-3.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+ FILE *f = fopen ("test.pbm", "r");
+ char id[42];
+ int width, height;
+ fscanf (f, "%s", id); // should be "P4"
+ fscanf (f, "%d", &width);
+ fscanf (f, "%d", &height);
+ uint8_t dummy;
+ fscanf (f, "%c", &dummy);
+
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < (width + 7) / 8; x++)
+ {
+ uint8_t data;
+ fscanf (f, "%c", &data);
+ for (int i = 0; i < 7; i++)
+ if (data & (1 << i))
+ printf ("*");
+ else
+ printf (" ");
+ }
+ printf ("\n");
+ }
+
+ return 0;
+}
diff --git a/20190128/show-pbm-4.c b/20190128/show-pbm-4.c
new file mode 100644
index 0000000..900896c
--- /dev/null
+++ b/20190128/show-pbm-4.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+ FILE *f = fopen ("test.pbm", "r");
+ char id[42];
+ int width, height;
+ fscanf (f, "%s", id); // should be "P4"
+ fscanf (f, "%d", &width);
+ fscanf (f, "%d", &height);
+ uint8_t dummy;
+ fscanf (f, "%c", &dummy);
+
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < (width + 7) / 8; x++)
+ {
+ uint8_t data;
+ fscanf (f, "%c", &data);
+ for (int i = 7; i >= 0; i--)
+ if (data & (1 << i))
+ printf ("*");
+ else
+ printf (" ");
+ }
+ printf ("\n");
+ }
+
+ return 0;
+}
diff --git a/20190128/show-pbm-5.c b/20190128/show-pbm-5.c
new file mode 100644
index 0000000..593bb36
--- /dev/null
+++ b/20190128/show-pbm-5.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdint.h>
+
+int main (void)
+{
+ FILE *f = fopen ("molpy-right.pbm", "r");
+ char id[42];
+ int width, height;
+ fscanf (f, "%s", id); // should be "P4"
+ fscanf (f, "%d", &width);
+ fscanf (f, "%d", &height);
+ uint8_t dummy;
+ fscanf (f, "%c", &dummy);
+
+ for (int y = 0; y < height; y++)
+ {
+ for (int x = 0; x < (width + 7) / 8; x++)
+ {
+ uint8_t data;
+ fscanf (f, "%c", &data);
+ for (int i = 7; i >= 0; i--)
+ if (data & (1 << i))
+ printf ("*");
+ else
+ printf (" ");
+ }
+ printf ("\n");
+ }
+
+ return 0;
+}
diff --git a/20190128/test.pbm b/20190128/test.pbm
new file mode 100644
index 0000000000000000000000000000000000000000..6e2a28648e9a83bf66fef6d223f211540f835c81
GIT binary patch
literal 41
jcmWGA;W9K+Ff`+0U}RuoU}4~35MWSXaA0Ua<1zpMP$dI}
literal 0
HcmV?d00001
diff --git a/20190128/test.png b/20190128/test.png
new file mode 100644
index 0000000000000000000000000000000000000000..aebf57c05ebe33327383a3d68d76cbdec22df883
GIT binary patch
literal 247
zcmeAS@N?(olHy`uVBq!ia0y~yU=RRdMg|532J?<XXBZe5SkfJR9T^xl_H+M9WMyDr
zU`q0KcVS?>+a<h&fq{X&#M9T6{V}7A0H4AA>w7#I7#OrYT^vI=uCpFA6l5^qVAxpR
zx5dkmNtv1bJ`2A%yEM13Je#_<vaYJ8{~`W6^JO2$UE--{U|>)!ag8WRNi0dVN-j!G
zEJ<ZBGBC8%H89jQvIsFWvobWXGO^G$Ftjo-i1YknhN2-iKP5A*61N6@5uYxQk33!d
KT-G@yGywphp*%nU
literal 0
HcmV?d00001
--
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