Marian Jancar writes:
>
> Create a window with backing pixmap, read the image into it and call
> XClearArea - most compatible, with good accelerated xserver also fastest.
> Mmap will not help here, it would only make things more dificult.// gcc -O2 -s x.c
>-o x -I/usr/X11/include -L/usr/X11/lib -lX11 -lXext -Wall
Do you have something that would work without shm ?
I just want to display remotely....
wes
>
> #include <X11/Xlib.h>
> #include <X11/extensions/XShm.h>
> #include <sys/ipc.h>
> #include <sys/shm.h>
> #include <unistd.h>
> #include <fcntl.h>
>
>
> int main (int argc, char **argv)
> {
> Display *d;
> Window w, r;
> Pixmap b_p;
> XShmSegmentInfo i;
> XSetWindowAttributes a;
> char *buff;
> int depth, width, height, image_size, v, fd;
>
>
> depth = 16;
> width = 768;
> height= 576;
>
> image_size = width * height * (depth / 8);
>
>
> i.shmid = shmget (IPC_PRIVATE, image_size, IPC_CREAT | 0777);
> i.shmaddr = shmat (i.shmid, 0, 0);
> i.readOnly=False;
> buff = i.shmaddr;
>
> d = XOpenDisplay (NULL);
> XShmAttach (d, &i);
> r = DefaultRootWindow (d);
> b_p = XShmCreatePixmap (d, r, buff, &i, width, height, depth);
> a.background_pixmap = b_p;
> v = CWBackPixmap;
> w = XCreateWindow (d, r, 0, 0, width, height, 0, depth, InputOutput,
>CopyFromParent, v, &a);
> XMapWindow(d, w);
>
> fd = open("./video.raw", O_RDONLY);
> while(read(fd, buff, image_size)) {
> XClearWindow(d, w);
> XFlush(d);
> usleep(40000);
> }
>
> return 0;
> }
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