nir: Use sampler derefs in drawpixels and bitmap lowering.

Reviewed-by: Eric Anholt <[email protected]>

2 files changed, 34 insertions, 13 deletions

diff --git a/src/compiler/nir/nir_lower_bitmap.c b/src/compiler/nir/nir_lower_bitmap.c
index 03eb6273129..880053d31fe 100644
--- a/src/compiler/nir/nir_lower_bitmap.c
+++ b/src/compiler/nir/nir_lower_bitmap.c
@@ -94,16 +94,22 @@ lower_bitmap(nir_shader *shader, nir_builder *b,
    nir_variable *tex_var =
       nir_variable_create(shader, nir_var_uniform, sampler2D, "bitmap_tex");
    tex_var->data.binding = options->sampler;
+   tex_var->data.explicit_binding = true;
+   tex_var->data.how_declared = nir_var_hidden;
 
-   tex = nir_tex_instr_create(shader, 1);
+   nir_deref_instr *tex_deref = nir_build_deref_var(b, tex_var);
+
+   tex = nir_tex_instr_create(shader, 3);
    tex->op = nir_texop_tex;
    tex->sampler_dim = GLSL_SAMPLER_DIM_2D;
    tex->coord_components = 2;
-   tex->sampler_index = options->sampler;
-   tex->texture_index = options->sampler;
    tex->dest_type = nir_type_float;
-   tex->src[0].src_type = nir_tex_src_coord;
-   tex->src[0].src =
+   tex->src[0].src_type = nir_tex_src_texture_deref;
+   tex->src[0].src = nir_src_for_ssa(&tex_deref->dest.ssa);
+   tex->src[1].src_type = nir_tex_src_sampler_deref;
+   tex->src[1].src = nir_src_for_ssa(&tex_deref->dest.ssa);
+   tex->src[2].src_type = nir_tex_src_coord;
+   tex->src[2].src =
       nir_src_for_ssa(nir_channels(b, texcoord,
                                    (1 << tex->coord_components) - 1));
 
diff --git a/src/compiler/nir/nir_lower_drawpixels.c b/src/compiler/nir/nir_lower_drawpixels.c
index 99eb646b245..c4c0c508757 100644
--- a/src/compiler/nir/nir_lower_drawpixels.c
+++ b/src/compiler/nir/nir_lower_drawpixels.c
@@ -132,20 +132,26 @@ lower_color(lower_drawpixels_state *state, nir_intrinsic_instr *intr)
       state->tex =
          nir_variable_create(b->shader, nir_var_uniform, sampler2D, "drawpix");
       state->tex->data.binding = state->options->drawpix_sampler;
+      state->tex->data.explicit_binding = true;
+      state->tex->data.how_declared = nir_var_hidden;
    }
 
+   nir_deref_instr *tex_deref = nir_build_deref_var(b, state->tex);
+
    /* replace load_var(gl_Color) w/ texture sample:
     *   TEX def, texcoord, drawpix_sampler, 2D
     */
-   tex = nir_tex_instr_create(state->shader, 1);
+   tex = nir_tex_instr_create(state->shader, 3);
    tex->op = nir_texop_tex;
    tex->sampler_dim = GLSL_SAMPLER_DIM_2D;
    tex->coord_components = 2;
-   tex->sampler_index = state->options->drawpix_sampler;
-   tex->texture_index = state->options->drawpix_sampler;
    tex->dest_type = nir_type_float;
-   tex->src[0].src_type = nir_tex_src_coord;
-   tex->src[0].src =
+   tex->src[0].src_type = nir_tex_src_texture_deref;
+   tex->src[0].src = nir_src_for_ssa(&tex_deref->dest.ssa);
+   tex->src[1].src_type = nir_tex_src_sampler_deref;
+   tex->src[1].src = nir_src_for_ssa(&tex_deref->dest.ssa);
+   tex->src[2].src_type = nir_tex_src_coord;
+   tex->src[2].src =
       nir_src_for_ssa(nir_channels(b, texcoord,
                                    (1 << tex->coord_components) - 1));
 
@@ -164,21 +170,30 @@ lower_color(lower_drawpixels_state *state, nir_intrinsic_instr *intr)
          state->pixelmap = nir_variable_create(b->shader, nir_var_uniform,
                                                sampler2D, "pixelmap");
          state->pixelmap->data.binding = state->options->pixelmap_sampler;
+         state->pixelmap->data.explicit_binding = true;
+         state->pixelmap->data.how_declared = nir_var_hidden;
       }
 
+      nir_deref_instr *pixelmap_deref =
+         nir_build_deref_var(b, state->pixelmap);
+
       /* do four pixel map look-ups with two TEX instructions: */
       nir_ssa_def *def_xy, *def_zw;
 
       /* TEX def.xy, def.xyyy, pixelmap_sampler, 2D; */
-      tex = nir_tex_instr_create(state->shader, 1);
+      tex = nir_tex_instr_create(state->shader, 3);
       tex->op = nir_texop_tex;
       tex->sampler_dim = GLSL_SAMPLER_DIM_2D;
       tex->coord_components = 2;
       tex->sampler_index = state->options->pixelmap_sampler;
       tex->texture_index = state->options->pixelmap_sampler;
       tex->dest_type = nir_type_float;
-      tex->src[0].src_type = nir_tex_src_coord;
-      tex->src[0].src = nir_src_for_ssa(nir_channels(b, def, 0x3));
+      tex->src[0].src_type = nir_tex_src_texture_deref;
+      tex->src[0].src = nir_src_for_ssa(&pixelmap_deref->dest.ssa);
+      tex->src[1].src_type = nir_tex_src_sampler_deref;
+      tex->src[1].src = nir_src_for_ssa(&pixelmap_deref->dest.ssa);
+      tex->src[2].src_type = nir_tex_src_coord;
+      tex->src[2].src = nir_src_for_ssa(nir_channels(b, def, 0x3));
 
       nir_ssa_dest_init(&tex->instr, &tex->dest, 4, 32, NULL);
       nir_builder_instr_insert(b, &tex->instr);