[Mesa-dev] [PATCH 3/8] r600: Emit poly_offset states together

[Marek Olšák]

The r600_init_atom call for polygon_offset_state should be updated to
account for the new register write (+3 dwords).

Marek

On Tue, Jun 14, 2016 at 11:33 PM, Axel Davy <axel.davy at ens.fr> wrote:
> Emit PA_SU_POLY_OFFSET_DB_FMT_CNTL with the other poly_offset states.
> This will be useful to implement
> PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED.
>
> Signed-off-by: Axel Davy <axel.davy at ens.fr>
> ---
>  src/gallium/drivers/r600/r600_state.c | 35 ++++++++++++-----------------------
>  1 file changed, 12 insertions(+), 23 deletions(-)
>
> diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
> index cf7f0b3..edb1491 100644
> --- a/src/gallium/drivers/r600/r600_state.c
> +++ b/src/gallium/drivers/r600/r600_state.c
> @@ -254,16 +254,24 @@ static void r600_emit_polygon_offset(struct r600_context *rctx, struct r600_atom
>         struct r600_poly_offset_state *state = (struct r600_poly_offset_state*)a;
>         float offset_units = state->offset_units;
>         float offset_scale = state->offset_scale;
> +       uint32_t pa_su_poly_offset_db_fmt_cntl = 0;
>
>         switch (state->zs_format) {
>         case PIPE_FORMAT_Z24X8_UNORM:
>         case PIPE_FORMAT_Z24_UNORM_S8_UINT:
>                 offset_units *= 2.0f;
> +               pa_su_poly_offset_db_fmt_cntl =
> +                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-24);
>                 break;
>         case PIPE_FORMAT_Z16_UNORM:
>                 offset_units *= 4.0f;
> +               pa_su_poly_offset_db_fmt_cntl =
> +                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-16);
>                 break;
> -       default:;
> +       default:
> +               pa_su_poly_offset_db_fmt_cntl =
> +                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-23) |
> +                       S_028DF8_POLY_OFFSET_DB_IS_FLOAT_FMT(1);
>         }
>
>         radeon_set_context_reg_seq(cs, R_028E00_PA_SU_POLY_OFFSET_FRONT_SCALE, 4);
> @@ -271,6 +279,9 @@ static void r600_emit_polygon_offset(struct r600_context *rctx, struct r600_atom
>         radeon_emit(cs, fui(offset_units));
>         radeon_emit(cs, fui(offset_scale));
>         radeon_emit(cs, fui(offset_units));
> +
> +       radeon_set_context_reg(cs, R_028DF8_PA_SU_POLY_OFFSET_DB_FMT_CNTL,
> +                              pa_su_poly_offset_db_fmt_cntl);
>  }
>
>  static uint32_t r600_get_blend_control(const struct pipe_blend_state *state, unsigned i)
> @@ -1059,25 +1070,6 @@ static void r600_init_depth_surface(struct r600_context *rctx,
>         surf->db_depth_size = S_028000_PITCH_TILE_MAX(pitch) | S_028000_SLICE_TILE_MAX(slice);
>         surf->db_prefetch_limit = (rtex->surface.level[level].nblk_y / 8) - 1;
>
> -       switch (surf->base.format) {
> -       case PIPE_FORMAT_Z24X8_UNORM:
> -       case PIPE_FORMAT_Z24_UNORM_S8_UINT:
> -               surf->pa_su_poly_offset_db_fmt_cntl =
> -                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-24);
> -               break;
> -       case PIPE_FORMAT_Z32_FLOAT:
> -       case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
> -               surf->pa_su_poly_offset_db_fmt_cntl =
> -                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-23) |
> -                       S_028DF8_POLY_OFFSET_DB_IS_FLOAT_FMT(1);
> -               break;
> -       case PIPE_FORMAT_Z16_UNORM:
> -               surf->pa_su_poly_offset_db_fmt_cntl =
> -                       S_028DF8_POLY_OFFSET_NEG_NUM_DB_BITS((char)-16);
> -               break;
> -       default:;
> -       }
> -
>         /* use htile only for first level */
>         if (rtex->htile_buffer && !level) {
>                 surf->db_htile_data_base = 0;
> @@ -1457,9 +1449,6 @@ static void r600_emit_framebuffer_state(struct r600_context *rctx, struct r600_a
>                                                                RADEON_PRIO_DEPTH_BUFFER_MSAA :
>                                                                RADEON_PRIO_DEPTH_BUFFER);
>
> -               radeon_set_context_reg(cs, R_028DF8_PA_SU_POLY_OFFSET_DB_FMT_CNTL,
> -                                      surf->pa_su_poly_offset_db_fmt_cntl);
> -
>                 radeon_set_context_reg_seq(cs, R_028000_DB_DEPTH_SIZE, 2);
>                 radeon_emit(cs, surf->db_depth_size); /* R_028000_DB_DEPTH_SIZE */
>                 radeon_emit(cs, surf->db_depth_view); /* R_028004_DB_DEPTH_VIEW */
> --
> 2.8.3
>
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