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Don't use XRRGetScreenResources() as there are performance issues with it.

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Wed Sep 10 06:18:25 2008  Søren Sandmann  <sandmann@redhat.com>

	* gdk/x11/gdkscreen-x11.c (init_multihead): Don't use
	XRRGetScreenResources() as there are performance issues with
	it. Instead rely on the fact that the RandR information is
	propagated through Xinerama as well.


svn path=/trunk/; revision=21334
This commit is contained in:
Søren Sandmann 2008-09-10 10:22:25 +00:00 committed by Søren Sandmann Pedersen
parent c5f6c87583
commit 90759964ee
2 changed files with 11 additions and 79 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Wed Sep 10 06:18:25 2008 Søren Sandmann <sandmann@redhat.com>
* gdk/x11/gdkscreen-x11.c (init_multihead): Don't use
XRRGetScreenResources() as there are performance issues with
it. Instead rely on the fact that the RandR information is
propagated through Xinerama as well.
2008-09-09 Marek Kasik <mkasik@redhat.com>
Bug 551386 – gtk_printer_set_is_default() always sets TRUE

83
gdk/x11/gdkscreen-x11.c
View File

@ -663,81 +663,6 @@ init_fake_xinerama (GdkScreen *screen)
return FALSE;
}
static gboolean
init_randr12 (GdkScreen *screen)
{
#ifdef HAVE_RANDR
GdkDisplay *display = gdk_screen_get_display (screen);
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
Display *dpy = GDK_SCREEN_XDISPLAY (screen);
XRRScreenResources *resources;
int i;
GArray *monitors;
gboolean randr12_compat = FALSE;
if (!display_x11->have_randr12)
return FALSE;
resources = XRRGetScreenResources (screen_x11->xdisplay,
screen_x11->xroot_window);
if (!resources)
return FALSE;
monitors = g_array_sized_new (FALSE, TRUE, sizeof (GdkX11Monitor),
resources->noutput);
for (i = 0; i < resources->noutput; ++i)
{
XRROutputInfo *output =
XRRGetOutputInfo (dpy, resources, resources->outputs[i]);
/* Non RandR1.2 X driver have output name "default" */
randr12_compat |= !g_strcmp0(output->name, "default");
if (output->crtc)
{
GdkX11Monitor monitor;
XRRCrtcInfo *crtc = XRRGetCrtcInfo (dpy, resources, output->crtc);
monitor.geometry.x = crtc->x;
monitor.geometry.y = crtc->y;
monitor.geometry.width = crtc->width;
monitor.geometry.height = crtc->height;
/* FIXME: fill this out properly - need EDID parser */
monitor.output = resources->outputs[i];
monitor.width_mm = -1;
monitor.height_mm = -1;
monitor.output_name = NULL;
monitor.manufacturer = NULL;
g_array_append_val (monitors, monitor);
XRRFreeCrtcInfo (crtc);
}
XRRFreeOutputInfo (output);
}
XRRFreeScreenResources (resources);
/* non RandR 1.2 X driver doesn't return any usable multihead data */
if (randr12_compat)
{
g_array_free (monitors, TRUE);
return FALSE;
}
screen_x11->n_monitors = monitors->len;
screen_x11->monitors = (GdkX11Monitor *)g_array_free (monitors, FALSE);
return TRUE;
#endif
return FALSE;
}
static gboolean
init_solaris_xinerama (GdkScreen *screen)
{
@ -861,14 +786,14 @@ init_multihead (GdkScreen *screen)
* 3. Solaris Xinerama
* 4. XFree86/Xorg Xinerama
*
* We use them in that order.
* However, there are performance issues with calling
* XRRGetScreenResources() every time an application starts,
* so in the RandR case we simply rely on the information being
* exported through Xinerama as well.
*/
if (init_fake_xinerama (screen))
return;
if (init_randr12 (screen))
return;
if (XQueryExtension (GDK_SCREEN_XDISPLAY (screen), "XINERAMA",
&opcode, &firstevent, &firsterror))
{