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From 36a4863f9a399740aaf8b1e01926485c0a055e1c Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Wed, 29 Apr 2020 13:52:42 +0200
Subject: [PATCH 1/8] Added Bg patch and screenshot capabilities
---
config.mk | 2 +-
slock.c | 35 +++++++++++++++++++++++++++++++----
2 files changed, 32 insertions(+), 5 deletions(-)
diff --git a/config.mk b/config.mk
index 74429ae..987819e 100644
--- a/config.mk
+++ b/config.mk
@@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib
# includes and libs
INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
diff --git a/slock.c b/slock.c
index 5ae738c..7c63f34 100644
--- a/slock.c
+++ b/slock.c
@@ -18,6 +18,7 @@
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <Imlib2.h>
#include "arg.h"
#include "util.h"
@@ -35,6 +36,7 @@ struct lock {
int screen;
Window root, win;
Pixmap pmap;
+ Pixmap bgmap;
unsigned long colors[NUMCOLS];
};
@@ -46,6 +48,8 @@ struct xrandr {
#include "config.h"
+Imlib_Image image;
+
static void
die(const char *errstr, ...)
{
@@ -190,9 +194,10 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
if (running && oldc != color) {
for (screen = 0; screen < nscreens; screen++) {
- XSetWindowBackground(dpy,
- locks[screen]->win,
- locks[screen]->colors[color]);
+ if(locks[screen]->bgmap)
+ XSetWindowBackgroundPixmap(dpy, locks[screen]->win, locks[screen]->bgmap);
+ else
+ XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[0]);
XClearWindow(dpy, locks[screen]->win);
}
oldc = color;
@@ -235,6 +240,17 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
lock->screen = screen;
lock->root = RootWindow(dpy, lock->screen);
+ if(image)
+ {
+ lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
+ imlib_context_set_image(image);
+ imlib_context_set_display(dpy);
+ imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
+ imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
+ imlib_context_set_drawable(lock->bgmap);
+ imlib_render_image_on_drawable(0, 0);
+ imlib_free_image();
+ }
for (i = 0; i < NUMCOLS; i++) {
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
colorname[i], &color, &dummy);
@@ -251,6 +267,8 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
CopyFromParent,
DefaultVisual(dpy, lock->screen),
CWOverrideRedirect | CWBackPixel, &wa);
+ if(lock->bgmap)
+ XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap);
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
&color, &color, 0, 0);
@@ -354,7 +372,16 @@ main(int argc, char **argv) {
die("slock: setgid: %s\n", strerror(errno));
if (setuid(duid) < 0)
die("slock: setuid: %s\n", strerror(errno));
-
+
+ /*Create screenshot Image*/
+ Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
+ image = imlib_create_image(scr->width,scr->height);
+ imlib_context_set_image(image);
+ imlib_context_set_display(dpy);
+ imlib_context_set_visual(DefaultVisual(dpy,0));
+ imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
+ imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
+
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
--
2.27.0
From 9d89604ac52b0949d047dae2f9b78cb5085ee1a2 Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Wed, 29 Apr 2020 14:15:59 +0200
Subject: [PATCH 2/8] Added blur function
---
config.def.h | 3 +++
slock.c | 3 ++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/config.def.h b/config.def.h
index c8e52d6..fcc1b39 100644
--- a/config.def.h
+++ b/config.def.h
@@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
+
+/*Set Blur radius*/
+static const int blurRadius=5;
\ No newline at end of file
diff --git a/slock.c b/slock.c
index 7c63f34..0f24cd7 100644
--- a/slock.c
+++ b/slock.c
@@ -372,7 +372,7 @@ main(int argc, char **argv) {
die("slock: setgid: %s\n", strerror(errno));
if (setuid(duid) < 0)
die("slock: setuid: %s\n", strerror(errno));
-
+
/*Create screenshot Image*/
Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
image = imlib_create_image(scr->width,scr->height);
@@ -381,6 +381,7 @@ main(int argc, char **argv) {
imlib_context_set_visual(DefaultVisual(dpy,0));
imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
+ imlib_image_blur(blurRadius);
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
--
2.27.0
From 069aabd7e30244befd4efe74c85d3468ed076c21 Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Wed, 29 Apr 2020 17:33:09 +0200
Subject: [PATCH 4/8] added Pixelation
---
config.def.h | 3 ++-
slock.c | 42 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/config.def.h b/config.def.h
index fcc1b39..1c1aef3 100644
--- a/config.def.h
+++ b/config.def.h
@@ -12,4 +12,5 @@ static const char *colorname[NUMCOLS] = {
static const int failonclear = 1;
/*Set Blur radius*/
-static const int blurRadius=5;
\ No newline at end of file
+static const int blurRadius=0;
+static const int pixelSize=5;
diff --git a/slock.c b/slock.c
index 0f24cd7..33ca569 100644
--- a/slock.c
+++ b/slock.c
@@ -381,7 +381,49 @@ main(int argc, char **argv) {
imlib_context_set_visual(DefaultVisual(dpy,0));
imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
+
+ /*Blur function*/
imlib_image_blur(blurRadius);
+
+
+ /*Pixelation*/
+ int width = scr->width;
+ int height = scr->height;
+
+ for(int y = 0; y < height; y += pixelSize)
+ {
+ for(int x = 0; x < width; x += pixelSize)
+ {
+ int red = 0;
+ int green = 0;
+ int blue = 0;
+
+ Imlib_Color pixel;
+ Imlib_Color* pp;
+ pp = &pixel;
+ for(int j = 0; j < pixelSize && j < height; j++)
+ {
+ for(int i = 0; i < pixelSize && i < width; i++)
+ {
+ imlib_image_query_pixel(x+i,y+j,pp);
+ red += pixel.red;
+ green += pixel.green;
+ blue += pixel.blue;
+ }
+ }
+ red /= (pixelSize*pixelSize);
+ green /= (pixelSize*pixelSize);
+ blue /= (pixelSize*pixelSize);
+ printf("R/G/B: %i/%i/%i\n",red,green,blue);
+ imlib_context_set_color(red,green,blue,pixel.alpha);
+ imlib_image_fill_rectangle(x,y,pixelSize,pixelSize);
+ red = 0;
+ green = 0;
+ blue = 0;
+ }
+ }
+
+
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
--
2.27.0
From 109bac015c1c7fbf8440fb42588fe7e0e9cb5e62 Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Wed, 29 Apr 2020 17:42:39 +0200
Subject: [PATCH 6/8] removed debug printf
---
slock.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/slock.c b/slock.c
index 33ca569..f54c459 100644
--- a/slock.c
+++ b/slock.c
@@ -414,7 +414,6 @@ main(int argc, char **argv) {
red /= (pixelSize*pixelSize);
green /= (pixelSize*pixelSize);
blue /= (pixelSize*pixelSize);
- printf("R/G/B: %i/%i/%i\n",red,green,blue);
imlib_context_set_color(red,green,blue,pixel.alpha);
imlib_image_fill_rectangle(x,y,pixelSize,pixelSize);
red = 0;
--
2.27.0
From a13a0f4ac86f82e4dff145b7ebd93e52d07492c9 Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Sun, 3 May 2020 18:03:38 +0200
Subject: [PATCH 7/8] Changed compilerflag to fast
---
config.mk | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/config.mk b/config.mk
index 987819e..d0c2f01 100644
--- a/config.mk
+++ b/config.mk
@@ -16,7 +16,7 @@ LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
-CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+CFLAGS = -std=c99 -pedantic -Wall -Ofast ${INCS} ${CPPFLAGS}
LDFLAGS = -s ${LIBS}
COMPATSRC = explicit_bzero.c
--
2.27.0
From 31a7001c4954606c066cc3df4318fafd6d216bcd Mon Sep 17 00:00:00 2001
From: Lars Niesen <iah71niesen@gso-koeln.de>
Date: Mon, 4 May 2020 10:00:40 +0200
Subject: [PATCH 8/8] Added defines for BLUR/PIXELATION to remove from code by
compilation
---
config.def.h | 11 ++++++++---
slock.c | 9 ++++++---
2 files changed, 14 insertions(+), 6 deletions(-)
diff --git a/config.def.h b/config.def.h
index 1c1aef3..5407953 100644
--- a/config.def.h
+++ b/config.def.h
@@ -11,6 +11,11 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
-/*Set Blur radius*/
-static const int blurRadius=0;
-static const int pixelSize=5;
+/*Enable blur*/
+#define BLUR
+/*Set blur radius*/
+static const int blurRadius=5;
+/*Enable Pixelation*/
+//#define PIXELATION
+/*Set pixelation radius*/
+static const int pixelSize=0;
diff --git a/slock.c b/slock.c
index f54c459..1a4d6e3 100644
--- a/slock.c
+++ b/slock.c
@@ -381,11 +381,14 @@ main(int argc, char **argv) {
imlib_context_set_visual(DefaultVisual(dpy,0));
imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
-
+
+#ifdef BLUR
+
/*Blur function*/
imlib_image_blur(blurRadius);
+#endif // BLUR
-
+#ifdef PIXELATION
/*Pixelation*/
int width = scr->width;
int height = scr->height;
@@ -423,7 +426,7 @@ main(int argc, char **argv) {
}
-
+#endif
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
--
2.27.0
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