[PATCH 16/18] Add synxrrd daemon

[Takashi Iwai]

At Wed, 13 Oct 2010 14:19:49 +1000,
Peter Hutterer wrote:
> 
> On Fri, Oct 08, 2010 at 07:22:40PM +0200, Takashi Iwai wrote:
> > This is a daemon program to sync Xrandr rotation with the synaptics device.
> 
> can we please integrate this with the respective DEs instead?

Sorry, I don't understand well.  What is DE meant here?


Takashi

> Cheers,
>   Peter
> 
> > Signed-off-by: Takashi Iwai <tiwai at suse.de>
> > ---
> >  tools/Makefile.am |    5 +-
> >  tools/synxrrd.c   |  186 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 190 insertions(+), 1 deletions(-)
> >  create mode 100644 tools/synxrrd.c
> > 
> > diff --git a/tools/Makefile.am b/tools/Makefile.am
> > index 2ad48f6..1111576 100644
> > --- a/tools/Makefile.am
> > +++ b/tools/Makefile.am
> > @@ -18,7 +18,7 @@
> >  #  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
> >  #  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
> >  
> > -bin_PROGRAMS = synclient syndaemon
> > +bin_PROGRAMS = synclient syndaemon synxrrd
> >  
> >  AM_CPPFLAGS = -I$(top_srcdir)/include -I$(sdkdir)
> >  AM_CFLAGS = $(XI_CFLAGS)
> > @@ -30,3 +30,6 @@ syndaemon_SOURCES = syndaemon.c
> >  syndaemon_CFLAGS = $(AM_CFLAGS) $(XTST_CFLAGS)
> >  syndaemon_LDFLAGS = $(AM_LDFLAGS) $(XTST_LIBS)
> >  
> > +synxrrd_SOURCES = synxrrd.c
> > +synxrrd_LDFLAGS = -lXrandr $(XLIB_LIBS) $(XI_LIBS)
> > +
> > diff --git a/tools/synxrrd.c b/tools/synxrrd.c
> > new file mode 100644
> > index 0000000..9f00e5b
> > --- /dev/null
> > +++ b/tools/synxrrd.c
> > @@ -0,0 +1,186 @@
> > +/*
> > + * synxrrd.c
> > + * Copyright (C) 2010 Takashi Iwai <tiwai at suse.de>
> > + */
> > +
> > +#include <stdio.h>
> > +#include <stdarg.h>
> > +#include <stdlib.h>
> > +#include <string.h>
> > +#include <unistd.h>
> > +#include <X11/Xlib.h>
> > +#include <X11/extensions/Xrandr.h>
> > +
> > +#define progname	"synxrrd"
> > +
> > +static int verbose;
> > +static const char *laptop_name;
> > +
> > +static int is_laptop(const char *name)
> > +{
> > +	if (laptop_name) {
> > +		if (!strcmp(name, laptop_name))
> > +			return 1;
> > +	} else {
> > +		if (strstr(name, "LVDS") ||
> > +		    strstr(name, "Lvds") ||
> > +		    strstr(name, "LVDs"))
> > +			return 1;
> > +		if (strstr(name, "LCD"))
> > +			return 1;
> > +	}
> > +	return 0;
> > +}
> > +
> > +static int current_rotation = -1; /* unknown */
> > +
> > +static int (*xerror_saved)(Display *, XErrorEvent *);
> > +static int xerror_code;
> > +
> > +static int xerror_ignore(Display *dpy, XErrorEvent *err)
> > +{
> > +	xerror_code = err->error_code;
> > +	return 0;
> > +}
> > +
> > +extern int (*_XErrorFunction)(Display *, XErrorEvent *);
> > +extern int _XDefaultError(Display *dpy, XErrorEvent *event);
> > +
> > +static void xerror_save(void)
> > +{
> > +	xerror_code = 0;
> > +	xerror_saved = _XErrorFunction;
> > +	_XErrorFunction = xerror_ignore;
> > +}
> > +
> > +static int xerror_restore(void)
> > +{
> > +	_XErrorFunction = xerror_saved;
> > +	return xerror_code;
> > +}
> > +
> > +static void notify_synaptics(XRRCrtcInfo *cres)
> > +{
> > +	int rotation;
> > +	char buf[256];
> > +
> > +	if (cres->rotation & 8)
> > +		rotation = 3;
> > +	else if (cres->rotation & 4)
> > +		rotation = 2;
> > +	else if (cres->rotation & 2)
> > +		rotation = 1;
> > +	else
> > +		rotation = 0;
> > +	if (current_rotation == rotation)
> > +		return;
> > +	current_rotation = rotation;
> > +	if (verbose)
> > +		fprintf(stderr, "%s: notified rotation %d\n",
> > +			progname, current_rotation);
> > +	sprintf(buf, "synclient Orientation=%d", current_rotation);
> > +	system(buf);
> > +}
> > +
> > +static void update_screen(Display *dpy, Window root)
> > +{
> > +	XRRScreenResources *res;
> > +	int i;
> > +
> > +	res = XRRGetScreenResources(dpy, root);
> > +	if (!res)
> > +		return;
> > +	for (i = 0; i < res->noutput; i++) {
> > +		XRROutputInfo *info;
> > +
> > +	       	info = XRRGetOutputInfo(dpy, res, res->outputs[i]);
> > +		if (!info)
> > +			continue;
> > +		if (is_laptop(info->name)) {
> > +			RRCrtc crtc = info->crtc;
> > +			XRRCrtcInfo *cres;
> > +
> > +			XRRFreeOutputInfo(info);
> > +			cres = XRRGetCrtcInfo(dpy, res, crtc);
> > +			if (!cres)
> > +				continue;
> > +			notify_synaptics(cres);
> > +			XRRFreeCrtcInfo(cres);
> > +			break;
> > +		}
> > +		XRRFreeOutputInfo(info);
> > +	}
> > +	XRRFreeScreenResources(res);
> > +}
> > +
> > +static void synxrr_daemon(Display *dpy, Window root)
> > +{
> > +	int event_base, error_base;
> > +
> > +	XRRQueryExtension(dpy, &event_base, &error_base);
> > +
> > +	XRRSelectInput(dpy, root, RRScreenChangeNotifyMask);
> > +
> > +	for (;;) {
> > +		XEvent event;
> > +
> > +		XNextEvent(dpy, &event);
> > +		xerror_save();
> > +		XRRUpdateConfiguration(&event);
> > +		switch (event.type - event_base) {
> > +		case RRScreenChangeNotify:
> > +			update_screen(dpy, root);
> > +			break;
> > +		}
> > +		xerror_restore();
> > +	}
> > +}
> > +
> > +static void usage(void)
> > +{
> > +	fprintf(stderr, "usage: %s [options]\n", progname);
> > +	fprintf(stderr, "  options\n");
> > +	fprintf(stderr, "  -d display  set X display name\n");
> > +	fprintf(stderr, "  -l name     xrandr output name for laptop display\n");
> > +	fprintf(stderr, "  -v          verbose mode\n");
> > +}
> > +
> > +int main(int argc, char **argv)
> > +{
> > +	Display *dpy;
> > +	Window root;
> > +	const char *display_name = NULL;
> > +	const char *device_name;
> > +	int c;
> > +
> > +	while ((c = getopt(argc, argv, "d:l:v")) != -1) {
> > +		switch (c) {
> > +		case 'd':
> > +			display_name = optarg;
> > +			break;
> > +		case 'l':
> > +			laptop_name = optarg;
> > +			break;
> > +		case 'v':
> > +			verbose++;
> > +			break;
> > +		default:
> > +			usage();
> > +			return 1;
> > +		}
> > +	}
> > +
> > +	device_name = argv[optind];
> > +
> > +	dpy = XOpenDisplay(display_name);
> > +	if (!dpy) {
> > +		perror("open display");
> > +		return 1;
> > +	}
> > +
> > +	root = DefaultRootWindow(dpy);
> > +	update_screen(dpy, root);
> > +	synxrr_daemon(dpy, root);
> > +
> > +	return 0;
> > +}
> > -- 
> > 1.7.3.1
> > 
>