Re: [GATOS]YPrPb Radeon output

[Pasi <pa...@ik...>]

On Tue, Aug 16, 2005 at 02:37:08AM +0100, Steven Newbury wrote:
>=20
> --- Pasi K=E4rkk=E4inen <pa...@ik...> wrote:
>=20
> > On Thu, Aug 11, 2005 at 01:11:29AM +0100, Steven Newbury wrote:
> > > I'm attempting to add YPrPb support to the Xorg Radeon driver.  Ini=
tially
> > my
> > > approach was to set likely looking registers to various values and =
hope to
> > be
> > > lucky, once this failed I decided I would use a different approach:
> > >=20
> > > After a ridiculous amount of work (ATI sells a dongle that somehow =
signals
> > to
> > > the driver to enable YPrPb mode, I don't have one, I'm using a stan=
dard
> > > VGA->component cable) I have managed to get it working under Window=
s XP and
> > > hoped I'd be able to make a register dump to find which registers a=
re set
> > to
> > > what.  Unfortunately I haven't been able to find anything to dump t=
he
> > registers
> > > under Windows.
> > >=20
> > > It doesn't help that I do not know whether it is the TV Out hardare
> > (Theatre
> > > chip) or the normal CRT path that provides the direct component out=
put so I
> > > don't even know which registers are likely to be relevent.
> > >=20
> > > I have discovered that not all Radeons support YPrPb, for example m=
y 9200SE
> > > (rv280) does not, as it happens much of my earlier testing was with=
 this
> > card!
> > > :-( My 8500 (r200) does, and it works very well with my Toshiba 28Z=
D26P TV
> > in
> > > 720x480p (the TV should support PAL based 576p too but the Windows =
Radeon
> > > drivers do not). =20
> > >=20
> > > Does anybody here, Federico Ulivi perhaps, have any idea where to g=
o from
> > here,
> > > what registers might be relevent, and whether there is a tool to du=
mp the
> > > Radeon registers under Windows.  I have tried using the Linux radeo=
ndump
> > > utility under Cygwin but though I managed to get it to compile I ha=
ven't
> > > managed to get it to work, lack of /proc/bus/pci doesn't help there=
.  I've
> > also
> > > been in touch with the author of ATI Tray Tools (a Windows Radeon t=
weaking
> > > tool) which does show the state of a small number of registers, how=
ever he
> > > doesn't believe he can be of much help since he only interfaces wit=
h the
> > > Windows Catalyst drivers.
> > >=20
> >=20
> > Hi!
> >=20
> > Check this out: http://zealsoftstudio.com/memaccess/
> >=20
> > -- Pasi K=E4rkk=E4inen
> Hello again Pasi,
> I've re-written radeon_dump to utilise the memaccess library, or at lea=
st
> attempted to.  I'm using Cygwin and gcc, I've got it linking to the Mem=
Acc.lib
> library from the memaccess distribution but at runtime it segfaults whe=
n it
> tries to open the driver.  I'm pretty certain it must be something I'm =
doing
> wrong with the way I'm linking it.  I've put MemAcc.lib into a ./lib su=
bdir and
> I'm using gcc -L ./lib -lMemAcc to link it.  There must be something el=
se I
> need to do???
>=20
> I can't find any references on-line about using Cygwin with memaccess, =
I'm
> probably the first I guess. :-/
>

Hi!

Sorry, but I haven't used memaccess library myself.. I think I got the ur=
l
from dri-devel list, where somebody was using it for almost the same purp=
ose
:)
=20
If you have msvc you could try with that.

- Pasi

> $ gdb ./radeon_dump.exe
> GNU gdb 6.3.50_2004-12-28-cvs (cygwin-special)
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and yo=
u are
> welcome to change it and/or distribute copies of it under certain condi=
tions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for deta=
ils.
> This GDB was configured as "i686-pc-cygwin"...
> (gdb) run
> Starting program: /home/ZeQ/radeon_dump/radeon_dump.exe
>=20
> Program received signal SIGSEGV, Segmentation fault.
> 0x80000001 in ?? ()
> (gdb) bt
> #0  0x80000001 in ?? ()
> #1  0x0040110b in main (argc=3D1, argv=3D0x4c1d68) at radeon_dump.c:198
> (gdb)
>=20
>     printf("Attempting to open MemAccess Library\n");
>     if(!maOpenLibrary())     <--- radeon_dump.c:198
>             {
>             maGetLastState(sError);
>             fprintf(stderr,"Error: %s\n", sError);
>             return -1;
>             }
>=20
>=20
> Steve
>=20
>=20
> 	=09
> ___________________________________________________________=20
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>=20
>=20
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