Hitachi-ZYWRLE Encoding Number (was RE: Introduction of NewVNCcodec)

[James Weatherall]

Hello Noriaki-san,

The RFB protocol specification already defines the range of encodings used
by the TightVNC project, including the "quality-level" encodings.  So as
long as your use of them is compatible with TightVNC's use of them, that
won't be a problem.

Regards,

Wez @ RealVNC Ltd.
 

> -----Original Message-----
> From: Hitachi Systems & Services, Ltd. 
> [mailto:micro-vnc "at" ias.hitachi-system.co.jp] 
> Sent: 06 February 2007 01:31
> To: jnw "at" realvnc.com; vnc-list "at" realvnc.com
> Subject: Re: Hitachi-ZYWRLE Encoding Number (was RE: 
> Introduction of NewVNCcodec)
> 
> 
> Hi,
> 
> In message <200702051203.JDG78685.ODtJSWDPN "at" ias.hitachi-system.co.jp>
>    "Re: Hitachi-ZYWRLE Encoding Number (was RE: Introduction 
> of NewVNCcodec)"
>    ""Hitachi Systems & Services, Ltd." 
> <micro-vnc "at" ias.hitachi-system.co.jp>" wrote:
> 
> >I think that the patch for RealVNC 4.x is meaningful and porting 
> >isn't difficult. So, I try it:
> >
> > * In rfb project,
> > * Copy ZRLEEncoder.[cxx|h]/ZRLEDecoder.[cxx|h] to
> >   ZYWRLEEncoder.[cxx|h]/ZYWRLEDecoder.[cxx|h] and modify it.
> > * register them in Encoder.cxx/Decoder.cxx.
> > * Modify zrleEncode.h/zrleDecode.h for ZYWRLE. The modification
> >   is only functionable when include from ZYWRLEEncoder.cxx/
> >   ZYWRLEDecoder.cxx.
> > * Add our zywrletemplate.c.
> > * Modify a bit of viewer for selecting our encoding.
> 
> I forgot to say about another modification.
> 
>  * ZYWRLE need quality specification. we use Tight JPEG quality
>    pseudo encoding for this purpose.
>    So, I add pseudoEncodingQualityLevel0-9 to encodings.h and
>    add qualtyLevel member to ConnParams.[cxx|h]
> 
> 
> Regards,
> 
> ---
> Noriaki Yamazaki
> Administrator of micro-VNC
> 
> Research & Developement center
> Hitachi Systems & Services, Ltd.