Re: [B2-devel] BasiliskII SDL on IRIX

[Gwenole B. <gb...@di...>]

Hi,

> I gave the new SDL support a spin on IRIX.  I found I needed the
> following patches for building:

OK, thanks I indeed can't make a cast value an lvalue.

> The gamma seems to be a bit different than with the X
> driver, but that's OK.

Probably because it's not working? ;-) I really don't know how to make=20=

gamma stuff work with SDL. They do have helper functions but not=20
clearly interfacable means with existing B2/SS code.

> "Thousands" of colors mode squashes the entire
> display into the left half of the window, with an odd green cast.
> Looks like something's not quite right in the 16bpp blitter...

Possible, blitters marked as "NT" (or "OK" in one way only) in=20
Screen_blitters[] are not tested. I normally tested all other big=20
endian blitters when I was still accessing an UltraSPARC station and=20
nowadays on my PBG4. And I tried to be very careful when writing the=20
rest.

On the other hand, if it is only a half of the window, that's a bit=20
odd. I would expect a bug to be consistently propagated on both sides.

> Gdk-ERROR **: BadMatch (invalid parameter attributes)
>   serial 41 error_code 8 request_code 129 minor_code 3

Could be a visual mismatch, it's really picky. Though it should have=20
worked better with consistent use of find_visual_for_depth() when this=20=

was implemented. :-(

BTW, I will likely implement soon a new JIT engine now that I am sure=20
OS 9.0 could work in real addressing mode. The current JIT definitely=20
turned out to be (i) too gcc specific, (ii) architecture dependent=20
anyway. And keeping in mind the MIPS ISA definitely helps in=20
determining a decent way to emulate PPC condition codes. Problem is=20
without proper hardware support, overflow condition would be=20
inefficitently handled.

Thanks,
Gwenol=E9.=