[B2-devel] DGA & direct addressing weirdness

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

Hi,

I tried to run in direct addressing mode with DGA with no avail :-/
Basically, all I needed to do was just retrieve the host real frame
buffer to buffer_copy, then allocate the_buffer later as I did for
windowed mode.

Unfortunately, for some reason, I don't even reach that part of code.
In video_x.cpp/init_xf86_dga, the third XSync() seems to completely lock
BasiliskII. As I tried to run B2 with strace, the last system call that
got traced was indeed a select().

Commenting out the line, would just make Basilisk hang a few X calls
later.

That problem was encountered with an i740 X server.

Using a traditional S3 Virge (I have two cards in the same box :), the
problem is different: everything goes well up to "Starting the
emulation..." then, Basilisk simply quits. There was no SEGV signal,
otherwise the Screen_fault_handler would have caught it and reported it.

Removing direct addressing automagically enables Basilisk back to run in
fullscreen DGA mode.

Do you happen to have any idea about that ?

-- 
Gwenolé Beauchesne