On Fri, Jan 27, 2017 at 5:18 PM, Jason Ekstrand <ja...@jlekstrand.net> wrote:
> This causes hangs on Broadwell if you try to render to it. I have no
> idea how we managed to not hit this earlier.
>
> Cc: "13.0 17.0" <mesa-sta...@lists.freedesktop.org>
> ---
> src/intel/isl/isl_format.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/src/intel/isl/isl_format.c b/src/intel/isl/isl_format.c
> index c8daece..bc157d5 100644
> --- a/src/intel/isl/isl_format.c
> +++ b/src/intel/isl/isl_format.c
> @@ -218,9 +218,10 @@ static const struct surface_format_info format_info[] = {
> SF(50, 50, x, x, x, x, x, x, x, x, P8A8_UNORM_PALETTE1)
> SF( x, x, x, x, x, x, x, x, x, x, A1B5G5R5_UNORM)
> /* According to the PRM, A4B4G4R4_UNORM isn't supported until Sky Lake
> - * but empirical testing indicates that it works just fine on Broadwell.
> + * but empirical testing indicates that at least sampling works just fine
> + * on Broadwell.
Not sure what all these tables affect, but I've had no end of trouble
from nouveau supporting BGRA4 sampling but not rendering - the latest
fail is doing a copy image from a "BGRA4" renderbuffer (which gets
upgraded to RGBA8) and a BGRA4 texture. But also (buggy) applications
get weirded out by being unable to render to a fb with a BGRA4 texture
attachment.
-ilia
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
