[Mesa-dev] Are gallium unpack_rgba_8unorm/pack_rgba_8unorm safe for in-place conversion ?

[Axel Davy]

Hi again,

Actually, "util_format_translate" seems to fit our needs.
It could probably be optimised better (8unorm fitting format->ARGB could 
avoid using tmp buffer for example),
but that should be ok for our needs.

Yours,

Axel Davy

On 09/02/2016 20:17, Axel Davy wrote:
> Hi,
>
> We'd need to do some formats conversion in gallium nine, and if 
> possible we would like to do them in-place.
>
> unpack_rgba_8unorm/pack_rgba_8unorm doesn't seem to explicitly allow 
> in-place conversion,
> but the generated code seems to be fine with that.
>
> Can we rely on these functions to be safe for in-place conversion ? 
> Could we add that somewhere as requirement ?
>
> CC-ing vmware guys, as they probably know.
>
> Yours,
>
> Axel Davy
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