/* xscreensaver, Copyright © 1991-2021 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
/* Some random diagnostics printed in -verbose mode about what extensions
are available on the server, and their version numbers.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xlibint.h>
#include <X11/Intrinsic.h>
#include <X11/extensions/XInput2.h>
#ifdef HAVE_XSHM_EXTENSION
# include <X11/extensions/XShm.h>
#endif /* HAVE_XSHM_EXTENSION */
#ifdef HAVE_DPMS_EXTENSION
# include <X11/extensions/dpms.h>
#endif /* HAVE_DPMS_EXTENSION */
#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
# include <X11/extensions/Xdbe.h>
#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
#ifdef HAVE_XF86VMODE
# include <X11/extensions/xf86vmode.h>
#endif /* HAVE_XF86VMODE */
#ifdef HAVE_XINERAMA
# include <X11/extensions/Xinerama.h>
#endif /* HAVE_XINERAMA */
#ifdef HAVE_RANDR
# include <X11/extensions/Xrandr.h>
#endif /* HAVE_RANDR */
#ifdef HAVE_XCOMPOSITE_EXTENSION
# include <X11/extensions/Xcomposite.h>
#endif
#ifdef HAVE_XKB
# include <X11/XKBlib.h>
#endif
#include "xscreensaver.h"
void
print_available_extensions (saver_info *si)
{
int i, j;
static struct {
const char *name; const char *desc;
Bool useful_p;
Status (*version_fn) (Display *, int *majP, int *minP);
} exts[] = {
# if 0
{ "MIT-SCREEN-SAVER", "MIT Screen-Saver",
False, 0
},
# endif
{ "MIT-SHM", "Shared Memory",
# ifdef HAVE_XSHM_EXTENSION
True, (Status (*) (Display*,int*,int*)) XShmQueryVersion /* 4 args */
# else
False, 0
# endif
}, { "DOUBLE-BUFFER", "Double-Buffering",
# ifdef HAVE_DOUBLE_BUFFER_EXTENSION
True, XdbeQueryExtension
# else
False, 0
# endif
}, { "DPMS", "Power Management",
# ifdef HAVE_DPMS_EXTENSION
True, DPMSGetVersion
# else
False, 0
# endif
}, { "GLX", "GLX",
# ifdef HAVE_GL
True, 0
# else
False, 0
# endif
}, { "XFree86-VidModeExtension", "XF86 Video-Mode",
# ifdef HAVE_XF86VMODE
True, XF86VidModeQueryVersion
# else
False, 0
# endif
}, { "XC-VidModeExtension", "XC Video-Mode",
# ifdef HAVE_XF86VMODE
True, XF86VidModeQueryVersion
# else
False, 0
# endif
}, { "XINERAMA", "Xinerama",
# ifdef HAVE_XINERAMA
True, XineramaQueryVersion
# else
False, 0
# endif
}, { "RANDR", "Resize-and-Rotate",
# ifdef HAVE_RANDR
True, XRRQueryVersion
# else
False, 0
# endif
}, { "Composite", "Composite",
# ifdef HAVE_XCOMPOSITE_EXTENSION
True, XCompositeQueryVersion
# else
True, 0
# endif
}, { "XKEYBOARD", "XKeyboard",
# ifdef HAVE_XKB
True, 0,
# else
False, 0
# endif
}, { "DRI", "DRI", True, 0
}, { "NV-CONTROL", "NVidia", True, 0
}, { "NV-GLX", "NVidia GLX", True, 0
}, { "Apple-DRI", "Apple-DRI", True, 0
}, { "Apple-WM", "Apple-WM", True, 0
}, { "XInputExtension", "XInput", True, 0
},
};
fprintf (stderr, "%s: running on display \"%s\"\n", blurb(),
DisplayString(si->dpy));
fprintf (stderr, "%s: vendor is %s, %d\n", blurb(),
ServerVendor(si->dpy), VendorRelease(si->dpy));
fprintf (stderr, "%s: useful extensions:\n", blurb());
for (i = 0; i < countof(exts); i++)
{
int op = 0, event = 0, error = 0;
char buf [255];
int maj = 0, min = 0;
int dummy1, dummy2, dummy3;
/* Most of the extension version functions take 3 args,
writing results into args 2 and 3, but some take more.
We only ever care about the first two results, but we
pass in three extra pointers just in case.
*/
Status (*version_fn_2) (Display*,int*,int*,int*,int*,int*) =
(Status (*) (Display*,int*,int*,int*,int*,int*)) exts[i].version_fn;
if (!XQueryExtension (si->dpy, exts[i].name, &op, &event, &error))
continue;
sprintf (buf, "%s: ", blurb());
strcat (buf, exts[i].desc);
if (!strcmp (exts[i].desc, "XInput"))
{
int maj = 999, min = 999; /* Desired */
XIQueryVersion (si->dpy, &maj, &min); /* Actual */
sprintf (buf+strlen(buf), " (%d.%d)", maj, min);
}
else if (!version_fn_2)
;
else if (version_fn_2 (si->dpy, &maj, &min, &dummy1, &dummy2, &dummy3))
sprintf (buf+strlen(buf), " (%d.%d)", maj, min);
else
strcat (buf, " (unavailable)");
if (!exts[i].useful_p)
strcat (buf, " (disabled at compile time)");
fprintf (stderr, "%s\n", buf);
}
# ifdef HAVE_LIBSYSTEMD
fprintf (stderr, "%s: libsystemd\n", blurb());
# else
fprintf (stderr, "%s: libsystemd (disabled at compile time)\n", blurb());
# endif
for (i = 0; i < si->nscreens; i++)
{
saver_screen_info *ssi = &si->screens[i];
unsigned long colormapped_depths = 0;
unsigned long non_mapped_depths = 0;
XVisualInfo vi_in, *vi_out;
int out_count;
if (!ssi->real_screen_p) continue;
vi_in.screen = ssi->real_screen_number;
vi_out = XGetVisualInfo (si->dpy, VisualScreenMask, &vi_in, &out_count);
if (!vi_out) continue;
for (j = 0; j < out_count; j++) {
if (vi_out[j].depth >= 32) continue;
if (vi_out[j].class == PseudoColor)
colormapped_depths |= (1 << vi_out[j].depth);
else
non_mapped_depths |= (1 << vi_out[j].depth);
}
XFree ((char *) vi_out);
if (colormapped_depths)
{
fprintf (stderr, "%s: screen %d colormapped depths:", blurb(),
ssi->real_screen_number);
for (j = 0; j < 32; j++)
if (colormapped_depths & (1 << j))
fprintf (stderr, " %d", j);
fprintf (stderr, "\n");
}
if (non_mapped_depths)
{
fprintf (stderr, "%s: screen %d non-colormapped depths:",
blurb(), ssi->real_screen_number);
for (j = 0; j < 32; j++)
if (non_mapped_depths & (1 << j))
fprintf (stderr, " %d", j);
fprintf (stderr, "\n");
}
}
}
