[B2-devel] Re: [Basilisk-cvs] BasiliskII/src/Unix video_x.cpp

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

Hi,

> depth/resolution switching infrastructure should be complete now; slot RO=
M
> contains all supported depths, default mode is stored in XPRAM upon start=
up,
> and added video_switch_to_mode() call (currently unimplemented in all dri=
vers)

That's nice, 0.9.1 is showing up ? ;-)

- What are we supposed to return when we can't change resolution/depth
(memory re-allocation error, failure in DGA vidmode switching, etc.) ?

- In direct addressing, we used to determine the base address of the Mac
framebuffer from the host address. Does your infrastructure permit
dynamic relocation of the Mac frame buffer ?

The latter problem can arise when we need to reallocate the frame buffer
to fit the new video mode. However, this can be easily fixed by
pre-allocating memory for the highest host video mode configuration, at
least for the_buffer[]. That will work but that's not really clean even
if only pages that are actually used reside in physical memory.

Bye,
Gwenol=E9.