Re: [Mesa3d-dev] Mesa texture format REV

[Jerome G. <j.g...@gm...>]

> No.  The <format> parameter describes the incoming format of the
> user's texture image.  It may or may not have any bearing on which
> hardware format is chosen by the driver.  More typically, the
> <internalFormat> parameter is used by the driver to choose the
> hardware texture format.

I am standing from the driver point of view, and so  i wanted to
know if i can ask mesa, from the driver, for a special order.

In r300 driver we have to test & find the hardware texture format
and for testing all possible path i would like to have the texture
provided by mesa in rev or "not" rev order as internal mesa
can give it to me in this two format.

What i found is that on big endian machine i get the texture
in REV order while on little endian i get it in "normal" order.

Anyway if it isn't possible to ask mesa for having texture
in rev or not order, i can assume that on big endian machine
i will always have texture in rev while on x86 i will get it
in "normal" order ? 

> Not all the MESA_FORMAT_* texture formats are supported by all drivers.

I think that r300 could support all mesa's texture format :)

thx for your help
Jerome Glisse