Date: Thu, 6 Mar 1997 00:49:34 -0500 (EST) From: Thomas Arnold <tom@inna.net> To: Amancio Hasty <hasty@rah.star-gate.com> Cc: Steve Passe <smp@csn.net>, Jamie Bowden <jamie@inna.net>, multimedia@freebsd.org Subject: Re: Video Capture for FreeBSD Message-ID: <Pine.BSI.3.95.970306004326.8815A-100000@caught.inna.net> In-Reply-To: <199703060404.UAA00323@rah.star-gate.com>
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On Wed, 5 Mar 1997, Amancio Hasty wrote:
> recompile rgb16 with debug option:
>
> cc -g -o rgb16 rgb16.c
>
> Now, step thru it,
>
> Until you find the system call which is giving you the headache
Welp. Its not one call. Its :
for (c = 0 ; c < ROWS*COLS; c++) {
b[0]= ((*rgb16 >> 7) & 0xf8); /* r */
b[1]= ((*rgb16 >> 2) & 0xf8); /* g */
b[2]= ((*rgb16++ << 3) & 0xf8); /* b */
write(o, &b[0], 3);
That routine is slower then dirt! California moves faster then it does on
this box. :-) Last time ./rgb16 I ran was 18.5 seconds and the machine
was -pasted-. It may be I just cant use it on this box, but I can't
beleive it is -SOOO- much slower then a Pentium box...
The Machine is an X5-133 ( 486 class ) UMC Chipset motherboard.
Any ideas or should I just upgrade the Motherboard too? This machine is
just our little-used Shell box and User-Page Webserver. I wanted to give
it a little something else to do once a minute. :-)
+-----------------------------------------------+
: Tom Arnold - No relation to Rosanne :
: SysAdmin/Pres - TBI, Ltd ( inna.net ) :
: The Middle Peninsula's Internet Connection :
+-----------------------------------------------+
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