On Thu, Sep 17, 2015 at 05:00:10PM +0100, Neil Roberts wrote:
> When 16 samples are used the MCS buffer needs 64 bits per pixel.
> ---
> src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> index 0cb0632..9faafb4 100644
> --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> @@ -1374,6 +1374,12 @@ intel_miptree_alloc_mcs(struct brw_context *brw,
> */
> format = MESA_FORMAT_R_UINT32;
> break;
> + case 16:
> + /* 64 bits/pixel are required for MCS data when using 16x MSAA (4 bits
> + * for each sample).
> + */
> + format = MESA_FORMAT_RG_UINT32;
> + break;
> default:
> unreachable("Unrecognized sample count in intel_miptree_alloc_mcs");
> };
This and the previous are:
Reviewed-by: Ben Widawsky <b...@bwidawsk.net>
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