[gs-devel] 'null' output device? xefitra

[Igor V. Melichev]

Try -sDEVICE=null .

-sDEVICE=bbox won't perform an actual drawing.
However if a PDF document includes a transparency,
some drawing may be done into the blending buffer
(need to check for sure).

Leo.


----- Original Message ----- 
From: "Jeroen Janssen" <jeroen.janssen at gmail.com>
To: <gs-devel at ghostscript.com>
Sent: Friday, August 31, 2007 6:37 PM
Subject: [gs-devel] 'null' output device?


> Hello,
>
> I'm going to run some tests that will result in lots of (bitmap)
> output if I save it it to disk, so
> I was wondering which device can be used to measure the 'raw'
> performance of ghostscript rendering without saving the output to disk
> (a 'null' output device?).
>
> I found the 'bounding box' device, but the source states:
> * One way to use a bounding box device is simply to include bbox.dev in 
> the
> * value of DEVICE_DEVSn in the makefile.  This produces a free-standing
> * device named 'bbox' that can be selected in the usual way 
> (-sDEVICE=bbox)
> * and that prints out the bounding box at each showpage or copypage 
> without
> * doing any drawing.
>
> And (I think) this means that the bouding box will not perform the
> actual drawing (and thus will not result in correct performance
> results).
>
> Any ideas / suggestions?
>
> Thanks in advance,
>
> Jeroen Janssen
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