Date: Wed, 16 May 2001 15:18:50 -0700 From: John Reynolds~ <jreynold@sedona.ch.intel.com> To: Nik Clayton <nik@freebsd.org> Cc: doc@freebsd.org Subject: Re: Automatic text screenshots Message-ID: <15106.64714.806080.138718@hip186.ch.intel.com> In-Reply-To: <20010516103515.A38101@catkin.nothing-going-on.org> References: <01051513051703.00373@k6-2.weeble.com> <200105151727.f4FHRos64816@bmah-freebsd-0.cisco.com> <01051515135804.00373@k6-2.weeble.com> <20010516103515.A38101@catkin.nothing-going-on.org>
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> 1. Some patches to syscons which add this ioctl -- these patches are
> against 2.2.x, but syscons hasn't changed drastically in the past
> few years.
Apparently it has.
As a followup, I've taken Nik's patches and "come closer" but I've been beaten
by time and lack of knowledge here. The attached patches apply "cleanly" to a
4.3-STABLE system but your kernel will not compile:
../../dev/syscons/syscons.c: In function `scioctl':
../../dev/syscons/syscons.c:789: structure has no member named `scr_buf'
this is because struct scr_stat no longer has a member called scr_buf. I did a
little poking around and at version 1.48 of syscons.h, is where scr_buf was no
more. Looks like a lot of stuff got moved into the softc structure. However,
at this point, that's where my knowledge runs out of gas. I don't know how to
modify Nik's code:
copyout (scp->scr_buf, ptr->buf,
ptr->xsize*ptr->ysize * sizeof(u_short));
to point to the right buffer. scp->sc->????.
The syscons patch applies to /usr/src/sys/dev/syscons, but the other patch no
longer applies to "console.h" but rather /usr/src/sys/sys/consio.h.
Hopefully somebody with more knowledge of syscons than me can take this and run
so that we can put this capability in place like Nik had envisioned.
-Jr
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--- syscons.c.orig Wed May 16 13:52:07 2001
+++ syscons.c Wed May 16 14:25:03 2001
@@ -774,6 +774,24 @@
return EINVAL;
}
+ case CONS_SCRSHOT: /* get a screen shot */
+ {
+ scrshot_t *ptr = (scrshot_t*)data;
+ s = spltty();
+ if (ISGRAPHSC(scp)) {
+ splx(s);
+ return EOPNOTSUPP;
+ }
+ if (scp->xsize != ptr->xsize || scp->ysize != ptr->ysize) {
+ splx(s);
+ return EINVAL;
+ }
+ copyout (scp->scr_buf, ptr->buf,
+ ptr->xsize*ptr->ysize * sizeof(u_short));
+ splx(s);
+ return 0;
+ }
+
case CONS_GETVERS: /* get version number */
*(int*)data = 0x200; /* version 2.0 */
return 0;
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--- consio.h.orig Wed May 16 14:27:49 2001
+++ consio.h Wed May 16 14:39:23 2001
@@ -213,6 +213,15 @@
};
typedef struct vid_info vid_info_t;
+/* holds "raw" color+character info when doing a "screen shot" (scrshot(1) */
+struct scrshot {
+ int xsize;
+ int ysize;
+ u_short* buf;
+};
+typedef struct scrshot scrshot_t;
+
+
#define CONS_GETINFO _IOWR('c', 73, vid_info_t)
/* get version */
@@ -232,6 +241,9 @@
/* set the frame buffer window origin (equivalent to FBIO_SETWINORG) */
#define CONS_SETWINORG _IO('c', 104 /*, u_int */)
+
+/* needed for scrshot(1) */
+#define CONS_SCRSHOT _IOWR('c', 105, scrshot_t)
/* use the specified keyboard */
#define CONS_SETKBD _IO('c', 110 /*, int */)
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=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
| John Reynolds WCCG, CCE, (space for rent, cheap!) |
| Intel Corporation MS: CH6-210 Phone: 480-554-9092 pgr: 602-868-6512 |
| jreynold@sedona.ch.intel.com http://www-aec.ch.intel.com/~jreynold/ |
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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