[haiku-development] Re: S3 Video Driver

Gerald Zajac <zajacg@xxxxxxxxxxxxx> wrote:
> The plain Trio64 86C764 is not supported because it does not support 
> Memory Mapped I/O (MMIO).  If someone has any ideas about how to 
> handle, 
> under BeOS/Haiku, a video chip that supports only PIO, I might 
> consider 
> supporting that chip.  The Trio64V+ 86C765 does appear to support 
> MMIO, 

The only way you can do this is to either move some of the 
functionality into the kernel module, or you make port out/in available 
to the accelerant (through an extra ioctl()).

> 1)  Savage 3D chip did not work with 16 bit color, and when I got 
> that 
> working, it would freeze the system when moving a window which had a 
> large number of bitmaps such as the game BShisen.
> 
> 2)  Savage/MX-MV  works fine under BeOS  as long as the user starts 
> up 
> with the default 640x480 boot screen;  however, if a higher 
> resolution 
> boot screen is used, it will only work at the resolution of the boot 
> screen.
> 
> 3)  Savage 2000 does not draw properly.
> 
> When these problems are resolved and more testing is performed, I 
> will 
> submit the source code to the project.

Thanks a lot! I think I even have an old Trio card somewhere buried 
here, maybe I will find it again some day :-)

Bye,
   Axel.

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