[Mesa-dev] [PATCH] i965/blorp: Use the correct ISL format for combined depth/stencil

[Chad Versace]

On Mon 23 Jan 2017, Jason Ekstrand wrote:
> In brw_blorp_copyteximage, we use the format from the render buffer.
> This could be a combined depth/stencil format.  In this case, we handle
> stencil properly but we give blorp the wrong ISL format.  Specifically,
> we would give blorp ISL_FORMAT_R32G32B32A32_FLOAT which is the wrong
> size was causing GPU hangs.
> 
> Fixes: GL45-CTS.gtf30.GL3Tests.packed_depth_stencil.packed_depth_stencil_copyteximage
> 
> Cc: "13.0 17.0" <mesa-stable at lists.freedesktop.org>
> Cc: Kenneth Graunke <kenneth at whitecape.org>
> ---
>  src/mesa/drivers/dri/i965/brw_blorp.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c b/src/mesa/drivers/dri/i965/brw_blorp.c
> index d79f529..3a7cf84 100644
> --- a/src/mesa/drivers/dri/i965/brw_blorp.c
> +++ b/src/mesa/drivers/dri/i965/brw_blorp.c
> @@ -284,8 +284,10 @@ brw_blorp_to_isl_format(struct brw_context *brw, mesa_format format,
>     case MESA_FORMAT_S_UINT8:
>        return ISL_FORMAT_R8_UINT;
>     case MESA_FORMAT_Z24_UNORM_X8_UINT:
> +   case MESA_FORMAT_Z24_UNORM_S8_UINT:
>        return ISL_FORMAT_R24_UNORM_X8_TYPELESS;
>     case MESA_FORMAT_Z_FLOAT32:
> +   case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
>        return ISL_FORMAT_R32_FLOAT;
>     case MESA_FORMAT_Z_UNORM16:
>        return ISL_FORMAT_R16_UNORM;

Locally, this looks correct to me.

Reviewed-by: Chad Versace <chadversary at chromium.org>