[Mesa-dev] [v2 14/18] i965/blorp: Use flat inputs instead of uniforms

Jason Ekstrand jason at jlekstrand.net
Mon Jul 4 16:48:24 UTC 2016


LGTM.  R-B still applies

On Mon, Jul 4, 2016 at 9:45 AM, Topi Pohjolainen <topi.pohjolainen at intel.com
> wrote:

> v2 (Jason): Use LOAD_INPUT() macro
>
> Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
> Reviewed-by: Jason Ekstrand <jason at jlekstrand.net> (v1)
> ---
>  src/mesa/drivers/dri/i965/brw_blorp_blit.cpp  | 24
> +++++++++++++-----------
>  src/mesa/drivers/dri/i965/brw_blorp_clear.cpp |  9 +++++----
>  2 files changed, 18 insertions(+), 15 deletions(-)
>
> diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> index 0d9fb92..76e771f 100644
> --- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> @@ -331,10 +331,10 @@ enum sampler_message_arg
>
>  struct brw_blorp_blit_vars {
>     /* Input values from brw_blorp_wm_inputs */
> -   nir_variable *u_discard_rect;
> -   nir_variable *u_rect_grid;
> -   nir_variable *u_coord_transform;
> -   nir_variable *u_src_z;
> +   nir_variable *v_discard_rect;
> +   nir_variable *v_rect_grid;
> +   nir_variable *v_coord_transform;
> +   nir_variable *v_src_z;
>
>     /* gl_FragCoord */
>     nir_variable *frag_coord;
> @@ -351,9 +351,11 @@ brw_blorp_blit_vars_init(nir_builder *b, struct
> brw_blorp_blit_vars *v,
>      assert(!key->use_kill || !(key->blend && key->blit_scaled));
>
>  #define LOAD_INPUT(name, type)\
> -   v->u_##name = nir_variable_create(b->shader, nir_var_uniform, type,
> #name); \
> -   v->u_##name->data.location = \
> -      offsetof(struct brw_blorp_wm_inputs, name);
> +   v->v_##name = nir_variable_create(b->shader, nir_var_shader_in, \
> +                                     type, #name); \
> +   v->v_##name->data.interpolation = INTERP_QUALIFIER_FLAT; \
> +   v->v_##name->data.location = VARYING_SLOT_VAR0 + \
> +      offsetof(struct brw_blorp_wm_inputs, name) / (4 * sizeof(float));
>
>     LOAD_INPUT(discard_rect, glsl_vec4_type())
>     LOAD_INPUT(rect_grid, glsl_vec4_type())
> @@ -395,7 +397,7 @@ nir_ssa_def *
>  blorp_blit_apply_transform(nir_builder *b, nir_ssa_def *src_pos,
>                             struct brw_blorp_blit_vars *v)
>  {
> -   nir_ssa_def *coord_transform = nir_load_var(b, v->u_coord_transform);
> +   nir_ssa_def *coord_transform = nir_load_var(b, v->v_coord_transform);
>
>     nir_ssa_def *offset = nir_vec2(b, nir_channel(b, coord_transform, 1),
>                                       nir_channel(b, coord_transform, 3));
> @@ -410,7 +412,7 @@ blorp_nir_discard_if_outside_rect(nir_builder *b,
> nir_ssa_def *pos,
>                                    struct brw_blorp_blit_vars *v)
>  {
>     nir_ssa_def *c0, *c1, *c2, *c3;
> -   nir_ssa_def *discard_rect = nir_load_var(b, v->u_discard_rect);
> +   nir_ssa_def *discard_rect = nir_load_var(b, v->v_discard_rect);
>     nir_ssa_def *dst_x0 = nir_channel(b, discard_rect, 0);
>     nir_ssa_def *dst_x1 = nir_channel(b, discard_rect, 1);
>     nir_ssa_def *dst_y0 = nir_channel(b, discard_rect, 2);
> @@ -498,7 +500,7 @@ blorp_nir_txf(nir_builder *b, struct
> brw_blorp_blit_vars *v,
>      */
>     assert(pos->num_components == 2);
>     pos = nir_vec3(b, nir_channel(b, pos, 0), nir_channel(b, pos, 1),
> -                     nir_load_var(b, v->u_src_z));
> +                     nir_load_var(b, v->v_src_z));
>
>     tex->sampler_dim = GLSL_SAMPLER_DIM_3D;
>     tex->coord_components = 3;
> @@ -1031,7 +1033,7 @@ blorp_nir_manual_blend_bilinear(nir_builder *b,
> nir_ssa_def *pos,
>                                  struct brw_blorp_blit_vars *v)
>  {
>     nir_ssa_def *pos_xy = nir_channels(b, pos, 0x3);
> -   nir_ssa_def *rect_grid = nir_load_var(b, v->u_rect_grid);
> +   nir_ssa_def *rect_grid = nir_load_var(b, v->v_rect_grid);
>     nir_ssa_def *scale = nir_imm_vec2(b, key->x_scale, key->y_scale);
>
>     /* Translate coordinates to lay out the samples in a rectangular  grid
> diff --git a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> index 4345ee5..a38ea0c 100644
> --- a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> @@ -67,16 +67,17 @@ brw_blorp_params_get_clear_kernel(struct brw_context
> *brw,
>     nir_builder_init_simple_shader(&b, NULL, MESA_SHADER_FRAGMENT, NULL);
>     b.shader->info.name = ralloc_strdup(b.shader, "BLORP-clear");
>
> -   nir_variable *u_color = nir_variable_create(b.shader, nir_var_uniform,
> -                                               glsl_vec4_type(),
> "u_color");
> -   u_color->data.location = 0;
> +   nir_variable *v_color = nir_variable_create(b.shader,
> nir_var_shader_in,
> +                                               glsl_vec4_type(),
> "v_color");
> +   v_color->data.location = VARYING_SLOT_VAR0;
> +   v_color->data.interpolation = INTERP_QUALIFIER_FLAT;
>
>     nir_variable *frag_color = nir_variable_create(b.shader,
> nir_var_shader_out,
>                                                    glsl_vec4_type(),
>                                                    "gl_FragColor");
>     frag_color->data.location = FRAG_RESULT_COLOR;
>
> -   nir_copy_var(&b, frag_color, u_color);
> +   nir_copy_var(&b, frag_color, v_color);
>
>     struct brw_wm_prog_key wm_key;
>     brw_blorp_init_wm_prog_key(&wm_key);
> --
> 2.5.5
>
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