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vset.c
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C/C++ Source or Header
|
1991-09-05
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8KB
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313 lines
#ifndef lint /* BuildSystemHeader added automatically */
static char *BuildSystemHeader= "$Header$"; /* BuildSystemHeader */
#endif /* BuildSystemHeader */
/***********************************************************
Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts,
and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
All Rights Reserved
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of Digital or MIT not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.
******************************************************************/
/*
* * File: *
*
* vset.c: user preference utility for live video extension to X *
*
*
*
* Author: *
*
* Susan Angebranndt *
*
*
*
*/
#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xvlib.h>
typedef struct _Options {
Bool brightness;
Bool contrast;
Bool hue;
Bool saturation;
Bool query;
Bool encoding;
int b;
int c;
int h;
int s;
char * e;
char * displayName;
} Options;
static void Usage()
{
printf("vset [-d display] [-b integer] [-c integer] [-h integer]\n");
printf("[-s integer] [-e encoding] [-q]\n");
printf("\nEncoding is one of:\n");
printf(" ntsc-composite\n");
printf(" pal-composite\n");
printf(" secam-composite\n");
printf(" ntsc-svideo\n");
printf(" pal-svideo\n");
printf(" secam-svideo\n");
printf(" ntsc-rgb\n");
printf(" pal-rgb\n");
printf(" secam-rgb\n");
exit(1);
}
Bool InternXvAtoms(dpy, encoding, saturation, hue, contrast, brightness)
Display *dpy;
Atom *encoding, *saturation, *hue, *contrast, *brightness;
{
*encoding = XInternAtom(dpy, "XV_ENCODING", True);
if (*encoding == None)
return False;
*saturation = XInternAtom(dpy, "XV_SATURATION", True);
if (*saturation == None)
return False;
*hue = XInternAtom(dpy, "XV_HUE", True);
if (*hue == None)
return False;
*contrast = XInternAtom(dpy, "XV_CONTRAST", True);
if (*contrast == None)
return False;
*brightness = XInternAtom(dpy, "XV_BRIGHTNESS", True);
if (*brightness == None)
return False;
return True;
}
static void CheckEncodingName(str)
char *str;
{
if (strcmp("ntsc-composite", str) == 0) {
return ;
} else if (strcmp("pal-composite", str) == 0) {
return ;
} else if (strcmp("secam-composite", str) == 0) {
return ;
} else if (strcmp("ntsc-svideo", str) == 0) {
return ;
} else if (strcmp("pal-svideo", str) == 0) {
return ;
} else if (strcmp("secam-svideo", str) == 0) {
return ;
} else if (strcmp("ntsc-rgb", str) == 0) {
return ;
} else if (strcmp("pal-rgb", str) == 0) {
return ;
} else if (strcmp("secam-rgb", str) == 0) {
return ;
} else { /* no match */
Usage();
}
}
static int ConvertToInteger(str)
char *str;
{
int i;
int start;
if (str[0] == '-')
start = 1;
else
start = 0;
for (i=start; i<strlen(str); i++) {
if (! isdigit(str[i])) Usage();
}
return atoi(str);
}
static void ParseCommandLine(argv, argc, opts)
int argc;
char *argv[];
Options *opts;
{
int i;
int c;
extern char *optarg;
Bool foundOne = False;
opts->brightness = False;
opts->contrast = False;
opts->hue = False;
opts->saturation = False;
opts->query = False;
opts->encoding = False;
opts->displayName = NULL;
while ((c = getopt(argc, argv, "qd:b:c:h:s:e:")) != EOF) {
foundOne = True;
switch (c) {
case 'd':
opts->displayName = optarg;
break;
case 'b':
opts->brightness = True;
opts->b = ConvertToInteger(optarg);
break;
case 'c':
opts->contrast = True;
opts->c = ConvertToInteger(optarg);
break;
case 'h':
opts->hue = True;
opts->h = ConvertToInteger(optarg);
break;
case 's':
opts->saturation = True;
opts->s = ConvertToInteger(optarg);
break;
case 'e':
opts->encoding = True;
opts->e = optarg;
CheckEncodingName(opts->e);
break;
case 'q':
opts->query = True;
break;
default:
Usage();
}
}
if (!foundOne) Usage();
}
static void QueryAllInformation(dpy, port,
batom, catom, hatom, satom, eatom, version, revision)
Display *dpy;
XvPortID port;
Atom batom, catom, hatom, satom, eatom;
int version, revision;
{
int value;
int nEncodings;
XvEncodingInfo *encodingInfo;
XvEncodingInfo *a;
int i;
printf("Xv V%01d.%d\n\n", version, revision);
XvGetPortAttribute(dpy, port, eatom, &value);
XvQueryEncodings(dpy, port, &nEncodings, &encodingInfo);
for (i = 0; i < nEncodings; i++) {
a = &encodingInfo[i];
if (a->encoding_id == value) {
printf("Encoding: %s\n", a->name);
}
}
XvGetPortAttribute(dpy, port, catom, &value);
printf("Contast: %d\n", value);
XvGetPortAttribute(dpy, port, hatom, &value);
printf("Hue: %d\n", value);
XvGetPortAttribute(dpy, port, satom, &value);
printf("Saturation: %d\n", value);
XvGetPortAttribute(dpy, port, batom, &value);
printf("Brightness: %d\n", value);
XvFreeEncodingInfo(encodingInfo);
}
int main(argc, argv)
int argc;
char *argv[];
{
Display *dpy;
int version, revision, major_opcode;
int event_base, error_base, status;
int width, height;
XvRational rate;
unsigned long nAdaptors;
XvAdaptorInfo *pAdaptors;
XvPortID port;
Atom batom, catom, hatom, satom, eatom;
Options opts;
int nEncodings;
XvEncodingInfo *encodingInfo;
XvEncodingInfo *a;
int i;
ParseCommandLine(argv, argc, &opts);
dpy = XOpenDisplay(opts.displayName);
if (!dpy) {
printf("Couldn't open display %s\n", opts.displayName);
exit(-1);
}
status = XvQueryExtension(dpy, &version, &revision,
&major_opcode, &event_base, &error_base);
if (status != Success) {
printf("Xv video extension not available\n");
exit(-1);
}
if (! InternXvAtoms(dpy, &eatom, &satom, &hatom, &catom, &batom)) {
printf("Encoding atoms not set up properly\n");
exit(-1);
}
XvQueryAdaptors(dpy, XDefaultRootWindow(dpy), &nAdaptors, &pAdaptors);
if (!nAdaptors) {
printf("Your display has no video adaptors\n");
exit(-1);
}
port = pAdaptors->base_id;
if (opts.query) {
QueryAllInformation(dpy, port,
batom, catom, hatom, satom, eatom,
version, revision);
exit(0);
}
if (opts.brightness) {
XvSetPortAttribute(dpy, port, batom, opts.b);
}
if (opts.contrast) {
XvSetPortAttribute(dpy, port, catom, opts.c);
}
if (opts.hue) {
XvSetPortAttribute(dpy, port, hatom, opts.h);
}
if (opts.saturation) {
XvSetPortAttribute(dpy, port, satom, opts.s);
}
if (opts.encoding) {
XvQueryEncodings(dpy, port, &nEncodings, &encodingInfo);
for (i=0; i<nEncodings; i++) {
a = &encodingInfo[i];
if (strcmp(a->name, opts.e) == 0) {
XvSetPortAttribute(dpy, port, eatom, a->encoding_id);
break;
}
}
XvFreeEncodingInfo(encodingInfo);
}
XSync(dpy, 0);
}