2006-08-28 19:37:42 -05:00
|
|
|
/*
|
|
|
|
* Copyright 1999 The XFree86 Project
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
|
|
* to deal in the Software without restriction, including without limitation
|
|
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be included in
|
|
|
|
* all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
|
|
* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
|
|
* WHETHER 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.
|
|
|
|
*
|
|
|
|
* Written by David Bateman
|
|
|
|
*/
|
|
|
|
/* $XFree86: xc/programs/xgamma/xgamma.c,v 1.3 1999/03/21 07:35:38 dawes Exp $ */
|
|
|
|
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#include <X11/Xos.h>
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
#include <X11/Xutil.h>
|
|
|
|
#include <X11/extensions/xf86vmode.h>
|
|
|
|
#include <ctype.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
2009-12-06 06:04:38 -06:00
|
|
|
static char *ProgramName;
|
|
|
|
static int MajorVersion, MinorVersion;
|
|
|
|
static int EventBase, ErrorBase;
|
2006-08-28 19:37:42 -05:00
|
|
|
|
|
|
|
/* Minimum extension version required */
|
|
|
|
#define MINMAJOR 2
|
|
|
|
#define MINMINOR 0
|
|
|
|
|
|
|
|
/* Maximum and Minimum gamma values */
|
|
|
|
#define GAMMA_MIN 0.1
|
|
|
|
#define GAMMA_MAX 10.0
|
|
|
|
|
|
|
|
static void
|
|
|
|
Syntax(void)
|
|
|
|
{
|
|
|
|
fprintf (stderr, "usage: %s [-options]\n\n",
|
|
|
|
ProgramName);
|
|
|
|
fprintf (stderr, "where the available options are:\n");
|
|
|
|
fprintf (stderr, " -display host:dpy or -d\n");
|
|
|
|
fprintf (stderr, " -quiet or -q\n");
|
|
|
|
fprintf (stderr, " -screen or -s\n");
|
|
|
|
fprintf (stderr, " -gamma f.f Gamma Value\n");
|
|
|
|
fprintf (stderr, " -rgamma f.f Red Gamma Value\n");
|
|
|
|
fprintf (stderr, " -ggamma f.f Green Gamma Value\n");
|
|
|
|
fprintf (stderr, " -bgamma f.f Blue Gamma Value\n\n");
|
|
|
|
fprintf (stderr, "If no gamma is specified, returns the current setting\n");
|
|
|
|
exit (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The following is a hack until XrmParseCommand is ready. It determines
|
|
|
|
* whether or not the given string is an abbreviation of the arg.
|
|
|
|
*/
|
|
|
|
|
|
|
|
static Bool
|
|
|
|
isabbreviation(char *arg, char *s, int minslen)
|
|
|
|
{
|
|
|
|
int arglen;
|
|
|
|
int slen;
|
|
|
|
|
|
|
|
/* exact match */
|
|
|
|
if (strcmp (arg, s) == 0) return (True);
|
|
|
|
|
|
|
|
arglen = strlen (arg);
|
|
|
|
slen = strlen (s);
|
|
|
|
|
|
|
|
/* too long or too short */
|
|
|
|
if (slen >= arglen || slen < minslen) return (False);
|
|
|
|
|
|
|
|
/* abbreviation */
|
|
|
|
if (strncmp (arg, s, slen) == 0) return (True);
|
|
|
|
|
|
|
|
/* bad */
|
|
|
|
return (False);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
main(int argc, char *argv[])
|
|
|
|
{
|
|
|
|
int i, ret;
|
|
|
|
char *displayname = NULL;
|
|
|
|
Display *dpy;
|
|
|
|
float gam = -1., rgam = -1., ggam = -1., bgam = -1.;
|
|
|
|
XF86VidModeGamma gamma;
|
|
|
|
Bool quiet = False;
|
|
|
|
int screen = -1;
|
|
|
|
|
|
|
|
ProgramName = argv[0];
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
|
|
char *arg = argv[i];
|
|
|
|
|
|
|
|
if (arg[0] == '-') {
|
|
|
|
if (isabbreviation ("-display", arg, 1)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
displayname = argv[i];
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-quiet", arg, 1)) {
|
|
|
|
quiet = True;
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-screen", arg, 1)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
screen = atoi(argv[i]);
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-gamma", arg, 2)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
if ((rgam >= 0.) || (ggam >= 0.) || (bgam >= 0.))
|
|
|
|
Syntax ();
|
|
|
|
gam = (float)atof(argv[i]);
|
|
|
|
if ((gam < GAMMA_MIN) || (gam > GAMMA_MAX)) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"Gamma values must be between %6.3f and %6.3f\n",
|
|
|
|
GAMMA_MIN, GAMMA_MAX);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-rgamma", arg, 2)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
if (gam >= 0.) Syntax ();
|
|
|
|
rgam = (float)atof(argv[i]);
|
|
|
|
if ((rgam < GAMMA_MIN) || (rgam > GAMMA_MAX)) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"Gamma values must be between %6.3f and %6.3f\n",
|
|
|
|
GAMMA_MIN, GAMMA_MAX);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-ggamma", arg, 2)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
if (gam >= 0.) Syntax ();
|
|
|
|
ggam = (float)atof(argv[i]);
|
|
|
|
if ((ggam < GAMMA_MIN) || (ggam > GAMMA_MAX)) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"Gamma values must be between %6.3f and %6.3f\n",
|
|
|
|
GAMMA_MIN, GAMMA_MAX);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
} else if (isabbreviation ("-bgamma", arg, 2)) {
|
|
|
|
if (++i >= argc) Syntax ();
|
|
|
|
if (gam >= 0.) Syntax ();
|
|
|
|
bgam = (float)atof(argv[i]);
|
|
|
|
if ((bgam < GAMMA_MIN) || (bgam > GAMMA_MAX)) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"Gamma values must be between %6.3f and %6.3f\n",
|
|
|
|
GAMMA_MIN, GAMMA_MAX);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
} else
|
|
|
|
Syntax ();
|
|
|
|
} else
|
|
|
|
Syntax ();
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((dpy = XOpenDisplay(displayname)) == NULL) {
|
|
|
|
fprintf (stderr, "%s: unable to open display '%s'\n",
|
|
|
|
ProgramName, XDisplayName (displayname));
|
|
|
|
exit(1);
|
|
|
|
} else if (screen == -1)
|
|
|
|
screen = DefaultScreen(dpy);
|
|
|
|
|
|
|
|
if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) {
|
|
|
|
fprintf(stderr, "Unable to query video extension version\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!XF86VidModeQueryExtension(dpy, &EventBase, &ErrorBase)) {
|
|
|
|
fprintf(stderr, "Unable to query video extension information\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Fail if the extension version in the server is too old */
|
|
|
|
if (MajorVersion < MINMAJOR ||
|
|
|
|
(MajorVersion == MINMAJOR && MinorVersion < MINMINOR)) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"Xserver is running an old XFree86-VidModeExtension version"
|
|
|
|
" (%d.%d)\n", MajorVersion, MinorVersion);
|
|
|
|
fprintf(stderr, "Minimum required version is %d.%d\n",
|
|
|
|
MINMAJOR, MINMINOR);
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!XF86VidModeGetGamma(dpy, screen, &gamma)) {
|
|
|
|
fprintf(stderr, "Unable to query gamma correction\n");
|
|
|
|
XCloseDisplay (dpy);
|
|
|
|
exit (2);
|
|
|
|
} else if (!quiet)
|
|
|
|
fprintf(stderr, "-> Red %6.3f, Green %6.3f, Blue %6.3f\n", gamma.red,
|
|
|
|
gamma.green, gamma.blue);
|
|
|
|
|
|
|
|
ret = 0;
|
|
|
|
if (gam >= 0.) {
|
|
|
|
gamma.red = gam;
|
|
|
|
gamma.green = gam;
|
|
|
|
gamma.blue = gam;
|
|
|
|
if (!XF86VidModeSetGamma(dpy, screen, &gamma)) {
|
|
|
|
fprintf(stderr, "Unable to set gamma correction\n");
|
|
|
|
ret = 2;
|
|
|
|
} else {
|
|
|
|
if (!XF86VidModeGetGamma(dpy, screen, &gamma)) {
|
|
|
|
fprintf(stderr, "Unable to query gamma correction\n");
|
|
|
|
ret = 2;
|
|
|
|
} else if (!quiet)
|
|
|
|
fprintf(stderr, "<- Red %6.3f, Green %6.3f, Blue %6.3f\n",
|
|
|
|
gamma.red, gamma.green, gamma.blue);
|
|
|
|
}
|
|
|
|
} else if ((rgam >= 0.) || (ggam >= 0.) || (bgam >= 0.)) {
|
|
|
|
if (rgam >= 0.) gamma.red = rgam;
|
|
|
|
if (ggam >= 0.) gamma.green = ggam;
|
|
|
|
if (bgam >= 0.) gamma.blue = bgam;
|
|
|
|
if (!XF86VidModeSetGamma(dpy, screen, &gamma)) {
|
|
|
|
fprintf(stderr, "Unable to set gamma correction\n");
|
|
|
|
ret = 2;
|
|
|
|
} else {
|
|
|
|
if (!XF86VidModeGetGamma(dpy, screen, &gamma)) {
|
|
|
|
fprintf(stderr, "Unable to query gamma correction\n");
|
|
|
|
ret = 2;
|
|
|
|
} else if (!quiet)
|
|
|
|
fprintf(stderr, "<- Red %6.3f, Green %6.3f, Blue %6.3f\n",
|
|
|
|
gamma.red, gamma.green, gamma.blue);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
XCloseDisplay (dpy);
|
|
|
|
exit (ret);
|
|
|
|
}
|
|
|
|
|