Re: Second View Pro

[o9938156@unicorn.it.wsu.edu (mark lyon)]

Erik Gachot (erik.gachot@vbo.mts.dec.com) wrote:
: Hello,
: 	I received the Second View Pro Software. I try this
: 	Software and Oh boy 'HOW IS IT POSSIBLE TO SELL SUCH
: 	BUGGY Software'. 

I had a problem with that, too.  If Sequential is going to charge
for something like an image viewer, you'd hope it would at least
work properly.

: 	This software is also very SLOW, when displaying jpeg
: 	images. by the way I have a TWGS running at 11Mhz.
: 	What will happen for a guy who is running at a slower
: 	speed ?????

I've never seen it run, but I was under the impression that SV Pro
was at least fast at decompressing jpeg's.  The jpeg decompression is
quite math-intensive, so it's always going to be pretty slow on a GS.
To give an example, a 640x480 pixel image will require 2,764,800
16x16->32 bit multiplies just for the IDCT routines.  Plus, another
921,600 shorter multiplies for the dequantization.  On a machine that
doesn't have a hardware multiplication, that adds up to a lot of cycles.
Then, when you add in all the other code necessary to get an image,
it becomes a rather lengthy process.

: 	I try do display jped that I used to display with the
: 	jpeg viewer (which is working correctly). and no WAY
: 	it begin, at the top of the screen I get a first 'frame'
: 	then a second one etc... the only problem is that the second 			frame
: is note the following of the first one !!!! 

Hmm, I can only suggest (insert shameless plug here) that you try
jpeGS.  It's unfortunately a lot slower than SV Pro or JPEG Viewer,
but it's free, uses the Second Sight board, and can show 16 color
pictures without a Second Sight.

Mark Marr-Lyon
o9938156@unicorn.it.wsu.edu

: 	Strange no !!. Any patch exist for this Soft ?
: 		-Erik Gachot.