slock

Simple X display locker (fork)
git clone git@sinitax.com:sinitax/slock
Log | Files | Refs | README | LICENSE | Upstream | sfeed.txt

commit 370a6fe6e9c4fe8269c6f75a19c4d5159d7a51d6
parent f35e22bc844373144d6d5248e09e7341c74983c1
Author: Louis Burda <quent.burda@gmail.com>
Date:   Thu, 28 Sep 2023 02:14:27 +0200

Add optional pixelated background blur

Diffstat:
Mconfig.def.h | 9+++++++++
Mconfig.mk | 8++++++--
Mslock.c | 78+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
3 files changed, 90 insertions(+), 5 deletions(-)

diff --git a/config.def.h b/config.def.h @@ -10,3 +10,12 @@ static const char *colorname[NUMCOLS] = { /* treat a cleared input like a wrong password (color) */ static const int failonclear = 1; + +/*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/config.mk b/config.mk @@ -12,11 +12,15 @@ 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 -CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS} +CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS} \ + -Ofast \ + LDFLAGS = -s ${LIBS} COMPATSRC = explicit_bzero.c diff --git 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); @@ -355,6 +373,60 @@ main(int argc, char **argv) { 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); + +#ifdef BLUR + + /*Blur function*/ + imlib_image_blur(blurRadius); +#endif // BLUR + +#ifdef PIXELATION + /*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); + imlib_context_set_color(red,green,blue,pixel.alpha); + imlib_image_fill_rectangle(x,y,pixelSize,pixelSize); + red = 0; + green = 0; + blue = 0; + } + } + + +#endif /* check for Xrandr support */ rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);