/* $OpenBSD: xvctl.c,v 1.2 2009/05/02 19:18:13 oga Exp $ */ /* * Copyright (c) 2001 Marc Espie. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include void usage() { fprintf(stderr, "usage:\t%s\n\t%s\n\t%s\n", "xvctl [-n] [-d display] [-s screen] [-A adaptor] variable ...", "xvctl [-n] [-d display] [-s screen] [-A adaptor] -w variable=value ...", "xvctl [-n] [-d display] [-s screen] [-A adaptor] -a"); exit(1); } char * reformat(char *name) { static char result[BUFSIZ]; char *s; char *t; if (strlcpy(result, name, sizeof result) >= sizeof result) warnx("Name %s was truncated", name); s = result; if (strncmp(result, "XV_", 3) == 0) s+=3; for (t = s; *t; t++) *t = tolower(*t); return s; } XvAttribute * findname(XvAttribute table[], int nattr, const char *name) { int i; if (strncasecmp(name, "XV_", 3) == 0) name +=3; for (i = 0; i < nattr; i++) { if (strcasecmp(table[i].name+3, name) == 0) return table+i; } warnx("No such attribute %s", name); return NULL; } void printattribute(Display *dpy, XvPortID id, int nflag, XvAttribute *a) { Atom atom; int v; atom = XInternAtom(dpy, a->name, True); if (atom != None) if (Success == XvGetPortAttribute(dpy, id, atom, &v)) { if (!nflag) printf("%s = ", reformat(a->name)); printf("%d\n", v); } } void showall(Display *dpy, XvPortID id, int nflag, XvAttribute table[], int nattr) { int i; for (i = 0; i < nattr; i++) if (table[i].flags & XvGettable) printattribute(dpy, id, nflag, table+i); } void setvar(Display *dpy, XvPortID id, int nflag, XvAttribute table[], int nattr, const char *name, int v) { XvAttribute *at; Atom atom; at = findname(table, nattr, name); if (!at) return; if (!(at->flags & XvSettable)) { warnx("Can't set %s", name); return; } if ((at->max_value != -1 && v > at->max_value) || v < at->min_value) { warnx("Value %d for %s out of range (%d-%d)", v, name, at->min_value, at->max_value); return; } atom = XInternAtom(dpy, at->name, True); if (atom != None) if (Success == XvSetPortAttribute(dpy, id, atom, v)) { if (!nflag) printattribute(dpy, id, nflag, at); } } void showvar(Display *dpy, XvPortID id, int nflag, XvAttribute table[], int nattr, const char *name) { XvAttribute *at; at = findname(table, nattr, name); if (!at) return; if (!(at->flags & XvGettable)) { warnx("Can't get %s", name); return; } printattribute(dpy, id, nflag, at); } void parse(Display *dpy, XvPortID id, int nflag, int wflag, XvAttribute table[], int nattr, const char *s) { char buf[BUFSIZ]; char *cp; if (strlcpy(buf, s, sizeof buf) >= sizeof(buf)) warnx("Buffer too small for %s", s); cp = strchr(buf, '='); if (cp != NULL) { long v; char *end; char *tail; if (!wflag) errx(2, "Can't set variables without -w"); tail = cp; while (tail > buf && isspace(tail[-1])) tail--; *tail = 0; do { cp++; } while (isspace(*cp)); v = strtol(cp, &end, 0); if (*end != 0) { warnx("Bogus value: %s", cp); return; } setvar(dpy, id, nflag, table, nattr, buf, v); } else showvar(dpy, id, nflag, table, nattr, buf); } char * displayname(char *display) { return display ? display : XDisplayName(display); } int main(int argc, char *argv[]) { int ch; int aflag = 0; int nflag = 0; int wflag = 0; char *display = NULL; int screen = -1; int nscreens; int nattr; unsigned int nadaptors; XvAdaptorInfo *ainfo; XvAttribute *table; int adaptor = 0; Display *dpy; unsigned int ver, rev, eventB, reqB, errorB; while ((ch = getopt(argc, argv, "ad:ns:A:w")) != -1) { switch(ch) { case 'a': aflag = 1; break; case 'd': display = optarg; break; case 's': screen = atoi(optarg); break; case 'A': adaptor = atoi(optarg); break; case 'n': nflag = 1; break; case 'w': wflag = 1; break; default: usage(); } } argc -= optind; argv += optind; dpy = XOpenDisplay(display); if (!dpy) errx(1, "Unable to open display %s", displayname(display)); if (Success != XvQueryExtension(dpy, &ver, &rev, &reqB, &eventB, &errorB)) errx(1, "No X-Video extension on %s", displayname(display)); if (!nflag) printf("X-Video extension version %i.%i on %s\n", ver, rev, displayname(display)); nscreens = ScreenCount(dpy); if (screen == -1) { for (screen = 0; screen < nscreens; screen++) { XvQueryAdaptors(dpy, RootWindow(dpy, screen), &nadaptors, &ainfo); if (nadaptors) break; } } if (screen >= nscreens) errx(1, "Not a screen with adaptors"); if (adaptor > nadaptors) errx(1, "No such adaptor"); table = XvQueryPortAttributes(dpy, ainfo[adaptor].base_id, &nattr); if (argc == 0) { if (!aflag) usage(); showall(dpy, ainfo[adaptor].base_id, nflag, table, nattr); } for (; *argv != NULL; ++argv) parse(dpy, ainfo[adaptor].base_id, nflag, wflag, table, nattr, *argv); XFree(table); exit(0); }