[Mesa-dev] [PATCH 1/2] r600g: fix polygon offset scale

[Alex Deucher]

On Tue, Aug 11, 2015 at 7:02 PM, Marek Olšák <maraeo at gmail.com> wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> The value was copied from r300g, which uses 1/12 subpixels, but this hw
> uses 1/16 subpixels.
>
> Should fix piglit: gl-1.4-polygon-offset (formerly a glean test)
> (untested, ported from radeonsi)


For the series:

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

CC stable?

> ---
>  src/gallium/drivers/r600/evergreen_state.c | 2 +-
>  src/gallium/drivers/r600/r600_state.c      | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
> index f7a76f6..95987ee 100644
> --- a/src/gallium/drivers/r600/evergreen_state.c
> +++ b/src/gallium/drivers/r600/evergreen_state.c
> @@ -485,7 +485,7 @@ static void *evergreen_create_rs_state(struct pipe_context *ctx,
>
>         /* offset */
>         rs->offset_units = state->offset_units;
> -       rs->offset_scale = state->offset_scale * 12.0f;
> +       rs->offset_scale = state->offset_scale * 16.0f;
>         rs->offset_enable = state->offset_point || state->offset_line || state->offset_tri;
>
>         if (state->point_size_per_vertex) {
> diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
> index 8488188..5cc2283 100644
> --- a/src/gallium/drivers/r600/r600_state.c
> +++ b/src/gallium/drivers/r600/r600_state.c
> @@ -473,7 +473,7 @@ static void *r600_create_rs_state(struct pipe_context *ctx,
>
>         /* offset */
>         rs->offset_units = state->offset_units;
> -       rs->offset_scale = state->offset_scale * 12.0f;
> +       rs->offset_scale = state->offset_scale * 16.0f;
>         rs->offset_enable = state->offset_point || state->offset_line || state->offset_tri;
>
>         if (state->point_size_per_vertex) {
> --
> 2.1.4
>
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