[Mesa-dev] [PATCH] r600g: use the hw MSAA resolving if formats are compatible

[Alex Deucher]

On Thu, May 5, 2016 at 1:03 PM, Marek Olšák <maraeo at gmail.com> wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> This allows resolving RGBA into RGBX.
> This should improve HL2 Lost Coast performance.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  src/gallium/drivers/r600/r600_blit.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c
> index ed67cb8..9230b40 100644
> --- a/src/gallium/drivers/r600/r600_blit.c
> +++ b/src/gallium/drivers/r600/r600_blit.c
> @@ -808,7 +808,8 @@ static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
>             info->dst.resource->nr_samples <= 1 &&
>             util_max_layer(info->src.resource, 0) == 0 &&
>             util_max_layer(info->dst.resource, info->dst.level) == 0 &&
> -           info->dst.format == info->src.format &&
> +           util_is_format_compatible(util_format_description(info->src.format),
> +                                     util_format_description(info->dst.format)) &&
>             !util_format_is_pure_integer(format) &&
>             !util_format_is_depth_or_stencil(format) &&
>             !info->scissor_enable &&
> --
> 2.7.4
>
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