Pixel formats with alpha are simply not implemented in the windows gdi
driver. I don't think it would be that hard to add.
They are supported in the gallium driver (src\gallium\state_trackers\wgl),
ARGB and BGRA.
On Fri, Mar 5, 2010 at 3:08 AM, Szilard Kiss <mit...@ya...> wrote:
>
> Hi,
>
> I am using Mesa on Windows (XP). However, I see that there are only two
> pixel formats that could be used, and none of them has an alpha channel. Is
> it possible to use other pixel formats (with an alpha channel) and how?
>
> I guess I'm using the software render mode (this is what I want to do).
> The GL_RENDERER string says "Mesa Windows GDI Driver".
>
> I'm sorry if this has already been answered, but I just could not find
> enough information about this online.
>
> Regards,
> Szilard
>
>
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