[PATCH xev] Show RandR events.
Michael Thayer
michael.thayer at oracle.com
Fri Feb 4 13:28:18 PST 2011
Signed-off-by: Michael Thayer <michael.thayer at oracle.com>
---
I think the subject line says it all. I was wanting to see what RandR events
clients were getting and saw that this was on the X.Org todo list.
configure.ac | 2 +-
xev.c | 214 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 215 insertions(+), 1 deletions(-)
diff --git a/configure.ac b/configure.ac
index bc31f6c..1945711 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,7 +36,7 @@ XORG_MACROS_VERSION(1.8)
XORG_DEFAULT_OPTIONS
# Checks for pkg-config packages
-PKG_CHECK_MODULES(XEV, x11)
+PKG_CHECK_MODULES(XEV, xrandr >= 1.2 xrender x11)
AC_CONFIG_FILES([
Makefile
diff --git a/xev.c b/xev.c
index c053171..667dc63 100644
--- a/xev.c
+++ b/xev.c
@@ -40,6 +40,7 @@ from the X Consortium.
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xproto.h>
+#include <X11/extensions/Xrandr.h>
#define INNER_WINDOW_WIDTH 50
#define INNER_WINDOW_HEIGHT 50
@@ -71,6 +72,9 @@ XIC xic = NULL;
Atom wm_delete_window;
Atom wm_protocols;
+Bool have_rr;
+int rr_event_base, rr_error_base;
+
static void
prologue (XEvent *eventp, char *event_name)
{
@@ -620,6 +624,191 @@ do_MappingNotify (XEvent *eventp)
XRefreshKeyboardMapping(e);
}
+static void
+print_SubPixelOrder (SubpixelOrder subpixel_order)
+{
+ switch (subpixel_order) {
+ case SubPixelUnknown: printf ("SubPixelUnknown"); return;
+ case SubPixelHorizontalRGB: printf ("SubPixelHorizontalRGB"); return;
+ case SubPixelHorizontalBGR: printf ("SubPixelHorizontalBGR"); return;
+ case SubPixelVerticalRGB: printf ("SubPixelVerticalRGB"); return;
+ case SubPixelVerticalBGR: printf ("SubPixelVerticalBGR"); return;
+ case SubPixelNone: printf ("SubPixelNone"); return;
+ default: printf ("%d", subpixel_order);
+ }
+}
+
+static void
+print_Rotation (Rotation rotation)
+{
+ if (rotation & RR_Rotate_0)
+ printf ("RR_Rotate_0");
+ else if (rotation & RR_Rotate_90)
+ printf ("RR_Rotate_90");
+ else if (rotation & RR_Rotate_180)
+ printf ("RR_Rotate_180");
+ else if (rotation & RR_Rotate_270)
+ printf ("RR_Rotate_270");
+ else {
+ printf ("%d", rotation);
+ return;
+ }
+ if (rotation & RR_Reflect_X)
+ printf (", RR_Reflect_X");
+ if (rotation & RR_Reflect_Y)
+ printf (", RR_Reflect_Y");
+}
+
+static void
+print_Connection (Connection connection)
+{
+ switch (connection) {
+ case RR_Connected: printf ("RR_Connected"); return;
+ case RR_Disconnected: printf ("RR_Disconnected"); return;
+ case RR_UnknownConnection: printf ("RR_UnknownConnection"); return;
+ default: printf ("%d", connection);
+ }
+}
+
+static void
+do_RRScreenChangeNotify (XEvent *eventp)
+{
+ XRRScreenChangeNotifyEvent *e = (XRRScreenChangeNotifyEvent *) eventp;
+
+ XRRUpdateConfiguration (eventp);
+ printf (" root 0x%lx, timestamp %lu, config_timestamp %lu\n",
+ e->root, e->timestamp, e->config_timestamp);
+ printf (" size_index %hu", e->size_index);
+ printf (", subpixel_order ");
+ print_SubPixelOrder (e->subpixel_order);
+ printf ("\n rotation ");
+ print_Rotation (e->rotation);
+ printf("\n width %d, height %d, mwidth %d, mheight %d\n",
+ e->width, e->height, e->mwidth, e->mheight);
+}
+
+static void
+do_RRNotify_OutputChange (XEvent *eventp, XRRScreenResources *screen_resources)
+{
+ XRROutputChangeNotifyEvent *e = (XRROutputChangeNotifyEvent *) eventp;
+ XRROutputInfo *output_info = NULL;
+ XRRModeInfo *mode_info = NULL;
+
+ if (screen_resources) {
+ int i;
+
+ output_info = XRRGetOutputInfo (dpy, screen_resources, e->output);
+ for (i = 0; i < screen_resources->nmode; i++)
+ if (screen_resources->modes[i].id == e->mode) {
+ mode_info = &screen_resources->modes[i]; break;
+ }
+ }
+ printf (" subtype XRROutputChangeNotifyEvent\n");
+ if (output_info)
+ printf (" output %s, ", output_info->name);
+ else
+ printf (" output %lu, ", e->output);
+ if (e->crtc)
+ printf("crtc %lu, ", e->crtc);
+ else
+ printf("crtc None, ");
+ if (mode_info)
+ printf ("mode %s (%dx%d)\n", mode_info->name, mode_info->width,
+ mode_info->height);
+ else if (e->mode)
+ printf ("mode %lu\n", e->mode);
+ else
+ printf("mode None\n");
+ printf (" rotation ");
+ print_Rotation (e->rotation);
+ printf ("\n connection ");
+ print_Connection (e->connection);
+ printf (", subpixel_order ");
+ print_SubPixelOrder (e->subpixel_order);
+ printf ("\n");
+ XRRFreeOutputInfo (output_info);
+}
+
+static void
+do_RRNotify_CrtcChange (XEvent *eventp, XRRScreenResources *screen_resources)
+{
+ XRRCrtcChangeNotifyEvent *e = (XRRCrtcChangeNotifyEvent *) eventp;
+ XRRModeInfo *mode_info = NULL;
+
+ if (screen_resources) {
+ int i;
+
+ for (i = 0; i < screen_resources->nmode; i++)
+ if (screen_resources->modes[i].id == e->mode) {
+ mode_info = &screen_resources->modes[i]; break;
+ }
+ }
+ printf (" subtype XRRCrtcChangeNotifyEvent\n");
+ if (e->crtc)
+ printf(" crtc %lu, ", e->crtc);
+ else
+ printf(" crtc None, ");
+ if (mode_info)
+ printf ("mode %s, ", mode_info->name);
+ else if (e->mode)
+ printf ("mode %lu, ", e->mode);
+ else
+ printf("mode None, ");
+ printf ("rotation ");
+ print_Rotation (e->rotation);
+ printf ("\n x %d, y %d, width %d, height %d\n",
+ e->x, e->y, e->width, e->height);
+}
+
+static void
+do_RRNotify_OutputProperty (XEvent *eventp,
+ XRRScreenResources *screen_resources)
+{
+ XRROutputPropertyNotifyEvent *e = (XRROutputPropertyNotifyEvent *) eventp;
+ XRROutputInfo *output_info = NULL;
+ char *property = XGetAtomName (dpy, e->property);
+
+ if (screen_resources)
+ output_info = XRRGetOutputInfo (dpy, screen_resources, e->output);
+ printf (" subtype XRROutputPropertyChangeNotifyEvent\n");
+ if (output_info)
+ printf (" output %s, ", output_info->name);
+ else
+ printf (" output %lu, ", e->output);
+ printf ("property %s, timestamp %lu, state ",
+ property, e->timestamp);
+ if (e->state == PropertyNewValue)
+ printf ("NewValue\n");
+ else if (e->state == PropertyDelete)
+ printf ("Delete\n");
+ else
+ printf ("%d\n", e->state);
+ XRRFreeOutputInfo (output_info);
+ if (property) XFree (property);
+}
+
+static void
+do_RRNotify (XEvent *eventp)
+{
+ XRRNotifyEvent *e = (XRRNotifyEvent *) eventp;
+ XRRScreenResources *screen_resources;
+
+ XRRUpdateConfiguration (eventp);
+ screen_resources = XRRGetScreenResources (dpy, e->window);
+ prologue (eventp, "RRNotify");
+ switch (e->subtype) {
+ case RRNotify_OutputChange:
+ do_RRNotify_OutputChange (eventp, screen_resources); break;
+ case RRNotify_CrtcChange:
+ do_RRNotify_CrtcChange (eventp, screen_resources); break;
+ case RRNotify_OutputProperty:
+ do_RRNotify_OutputProperty (eventp, screen_resources); break;
+ default:
+ printf (" subtype %d\n", e->subtype);
+ }
+ XRRFreeScreenResources (screen_resources);
+}
+
static void
@@ -935,6 +1124,20 @@ main (int argc, char **argv)
}
}
+ have_rr = XRRQueryExtension (dpy, &rr_event_base, &rr_error_base);
+ if (have_rr) {
+ int rr_major, rr_minor;
+
+ if (XRRQueryVersion (dpy, &rr_major, &rr_minor)) {
+ int mask = RRScreenChangeNotifyMask;
+
+ if (rr_major >= 1 && rr_minor >= 2)
+ mask |= RRCrtcChangeNotifyMask | RROutputChangeNotifyMask |
+ RROutputPropertyNotifyMask;
+ XRRSelectInput (dpy, w, mask);
+ }
+ }
+
for (done = 0; !done; ) {
XEvent event;
@@ -1074,6 +1277,17 @@ main (int argc, char **argv)
do_MappingNotify (&event);
break;
default:
+ if (have_rr) {
+ if (event.type == rr_event_base + RRScreenChangeNotify) {
+ prologue (&event, "RRScreenChangeNotify");
+ do_RRScreenChangeNotify (&event);
+ break;
+ }
+ if (event.type == rr_event_base + RRNotify) {
+ do_RRNotify (&event);
+ break;
+ }
+ }
printf ("Unknown event type %d\n", event.type);
break;
}
--
1.7.1
--
ORACLE Deutschland B.V. & Co. KG Michael Thayer
Werkstrasse 24 VirtualBox engineer
71384 Weinstadt, Germany mailto:michael.thayer at oracle.com
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