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/* test-fade.c --- playing with colormap and/or gamma fading.
* xscreensaver, Copyright © 2001-2021 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <stdio.h>
#include <X11/Xatom.h>
#include <X11/Intrinsic.h>
#include "xscreensaver.h"
#include "resources.h"
#include "screens.h"
#include "fade.h"
#include "atoms.h"
#ifdef HAVE_XF86VMODE_GAMMA
# include <X11/extensions/xf86vmode.h>
#endif
#ifdef HAVE_RANDR
# include <X11/extensions/Xrandr.h>
#endif
XrmDatabase db = 0;
char *progclass = "XScreenSaver";
Bool debug_p = True;
#define XF86_VIDMODE_NAME "XFree86-VidModeExtension"
#define RANDR_NAME "RANDR"
int
main (int argc, char **argv)
{
double seconds = 3;
double ratio = 1/3.0;
int delay = 2;
int op, event, error, major, minor;
XtAppContext app;
Widget toplevel_shell = XtAppInitialize (&app, progclass, 0, 0,
&argc, argv, 0, 0, 0);
Display *dpy = XtDisplay (toplevel_shell);
Screen *screen = ScreenOfDisplay (dpy, 0);
int nwindows, i;
Window windows[100];
int x, y;
unsigned int bw, d;
Window root = RootWindow (dpy, 0);
Visual *visual = DefaultVisual (dpy, 0);
Pixmap logo, logo_clipmask;
int logo_npixels;
unsigned long *logo_pixels;
unsigned int logo_width, logo_height;
XSetWindowAttributes attrs;
unsigned long attrmask = 0;
void *state = 0;
verbose_p += 2;
progname = argv[0];
progclass = "XScreenSaver";
db = XtDatabase (dpy);
init_xscreensaver_atoms (dpy);
{
const char * version_number = "test-fade";
Window daemon_window =
XCreateWindow (dpy, RootWindow (dpy, 0),
0, 0, 1, 1, 0,
DefaultDepth (dpy, 0), InputOutput,
DefaultVisual (dpy, 0), attrmask, &attrs);
XChangeProperty (dpy, daemon_window, XA_SCREENSAVER_VERSION, XA_STRING,
8, PropModeReplace, (unsigned char *) version_number,
strlen (version_number));
}
if (!XQueryExtension (dpy, XF86_VIDMODE_NAME, &op, &event, &error))
fprintf(stderr, "%s: no " XF86_VIDMODE_NAME " extension\n", blurb());
else
{
# ifdef HAVE_XF86VMODE_GAMMA
if (!XF86VidModeQueryVersion (dpy, &major, &minor))
fprintf(stderr, "%s: unable to get " XF86_VIDMODE_NAME " version\n",
blurb());
else
fprintf(stderr, "%s: " XF86_VIDMODE_NAME " version %d.%d\n",
blurb(), major, minor);
# else /* !HAVE_XF86VMODE_GAMMA */
fprintf(stderr, "%s: no support for display's " XF86_VIDMODE_NAME
" extension\n", blurb());
# endif /* !HAVE_XF86VMODE_GAMMA */
}
if (!XQueryExtension (dpy, RANDR_NAME, &op, &event, &error))
fprintf(stderr, "%s: no " RANDR_NAME " extension\n", blurb());
else
{
# ifdef HAVE_RANDR
if (!XRRQueryVersion (dpy, &major, &minor))
fprintf(stderr, "%s: unable to get " RANDR_NAME " version\n",
blurb());
else
fprintf(stderr, "%s: " RANDR_NAME " version %d.%d\n",
blurb(), major, minor);
# else /* !HAVE_RANDR */
fprintf(stderr, "%s: no support for display's " RANDR_NAME
" extension\n", blurb());
# endif /* !HAVE_RANDR */
}
logo = xscreensaver_logo (screen, visual, root, DefaultColormap (dpy, 0),
WhitePixel (dpy, 0),
&logo_pixels, &logo_npixels,
&logo_clipmask, True);
XGetGeometry (dpy, logo, &root, &x, &y, &logo_width, &logo_height, &bw, &d);
nwindows = 0;
{
int x, y;
for (y = 0; y < 2; y++)
for (x = 0; x < 2; x++)
{
int win_width = 250;
int win_height = 200;
attrmask = CWOverrideRedirect;
attrs.override_redirect = True;
windows[nwindows] =
XCreateWindow (dpy, root,
200 + x * win_width * 1.5,
200 + y * win_height * 1.5,
win_width, win_height, 0, DefaultDepth (dpy, 0),
InputOutput, visual,
attrmask, &attrs);
XSetWindowBackground (dpy, windows[nwindows], BlackPixel (dpy, 0));
XClearWindow (dpy, windows[nwindows]);
nwindows++;
}
}
fprintf (stderr, "%s: fading %d screen%s\n",
blurb(), ScreenCount(dpy), ScreenCount(dpy) == 1 ? "" : "s");
while (1)
{
XSync (dpy, False);
fprintf(stderr, "%s: fading out\n\n", blurb());
fflush(stderr);
fade_screens (app, dpy, windows, nwindows, seconds,
True, /* out_p */
True, /* from_desktop_p */
&state);
for (i = 0; i < nwindows; i++)
XMapRaised (dpy, windows[i]);
XSync (dpy, False);
fprintf(stderr, "%s: out done\n\n", blurb());
fflush(stderr);
for (i = 0; i < nwindows; i++)
{
XSetWindowBackgroundPixmap (dpy, windows[i], logo);
XClearWindow (dpy, windows[i]);
XSetWindowBackground (dpy, windows[i], BlackPixel (dpy, 0));
}
XSync (dpy, False);
if (delay) sleep (delay);
fprintf(stderr, "%s: fading in\n\n", blurb());
fflush(stderr);
fade_screens (app, dpy, windows, nwindows,
seconds * ratio,
True, /* out_p */
False, /* from_desktop_p */
&state);
fade_screens (app, dpy, windows, nwindows,
seconds * ratio,
False, /* out_p */
False, /* from_desktop_p */
&state);
XSync (dpy, False);
fprintf(stderr, "%s: in done\n\n", blurb());
fflush(stderr);
if (delay) sleep (delay);
}
}
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