On Fri, 7 Mar 2003, Ian Romanick wrote:
>> I was looking at the source for the radeon driver and noticed that the
>> depth buffer is always set to 32 bits if a 24 bpp color depth is
>> selected. Is this a hardware limitation, or might it be possible to
>> change it to 16 bpp?
>
>There's two ways to do this. One would be to add an option to the X
>server to select the depth-buffer size. Look in
>programs/Xserver/hw/xfree86/drivers/ati/radeon_driver.c for how options
>(like "AGPSize") are handled. Basically, you'd add an entry like
>
> { OPTION_DEPTH_SIZE, "DepthBits", OPTV_INTEGER, {0}, FALSE },
One of the following would be more consistent with option naming:
{ OPTION_DEPTH_SIZE, "DepthSize", OPTV_INTEGER, {0}, FALSE },
{ OPTION_DEPTH_BUFFER_SIZE, "DepthBufferSize", OPTV_INTEGER, {0}, FALSE },
Just a suggestion.
--
Mike A. Harris ftp://people.redhat.com/mharris
OS Systems Engineer - XFree86 maintainer - Red Hat
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