[Mesa-dev] [PATCH] radeonsi: implement BPTC texture support

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Wed, Aug 13, 2014 at 2:39 AM, Grigori Goronzy <greg at chown.ath.cx> wrote:
> Passes all piglit tests.
>
> v2: rebased
> ---
>  src/gallium/drivers/radeonsi/si_state.c | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
> index 6e9a60a..4f7adea 100644
> --- a/src/gallium/drivers/radeonsi/si_state.c
> +++ b/src/gallium/drivers/radeonsi/si_state.c
> @@ -1102,6 +1102,22 @@ static uint32_t si_translate_texformat(struct pipe_screen *screen,
>                 }
>         }
>
> +       if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC) {
> +               if (!enable_s3tc)
> +                       goto out_unknown;
> +
> +               switch (format) {
> +               case PIPE_FORMAT_BPTC_RGBA_UNORM:
> +               case PIPE_FORMAT_BPTC_SRGBA:
> +                       return V_008F14_IMG_DATA_FORMAT_BC7;
> +               case PIPE_FORMAT_BPTC_RGB_FLOAT:
> +               case PIPE_FORMAT_BPTC_RGB_UFLOAT:
> +                       return V_008F14_IMG_DATA_FORMAT_BC6;
> +               default:
> +                       goto out_unknown;
> +               }
> +       }
> +
>         if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
>                 switch (format) {
>                 case PIPE_FORMAT_R8G8_B8G8_UNORM:
> @@ -2467,12 +2483,16 @@ static struct pipe_sampler_view *si_create_sampler_view(struct pipe_context *ctx
>                                 case PIPE_FORMAT_DXT1_SRGBA:
>                                 case PIPE_FORMAT_DXT3_SRGBA:
>                                 case PIPE_FORMAT_DXT5_SRGBA:
> +                               case PIPE_FORMAT_BPTC_SRGBA:
>                                         num_format = V_008F14_IMG_NUM_FORMAT_SRGB;
>                                         break;
>                                 case PIPE_FORMAT_RGTC1_SNORM:
>                                 case PIPE_FORMAT_LATC1_SNORM:
>                                 case PIPE_FORMAT_RGTC2_SNORM:
>                                 case PIPE_FORMAT_LATC2_SNORM:
> +                               /* implies float, so use SNORM/UNORM to determine
> +                                  whether data is signed or not */
> +                               case PIPE_FORMAT_BPTC_RGB_FLOAT:
>                                         num_format = V_008F14_IMG_NUM_FORMAT_SNORM;
>                                         break;
>                                 default:
> --
> 1.9.1
>
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