nir: use IO intrinsics in nir_lower_drawpixels

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32779>
2024-12-24 13:36:44 -05:00
parent 0de28a9fd0
commit ee8916c414
1 changed files with 7 additions and 0 deletions
@@ -40,6 +40,13 @@ typedef struct {
 static nir_def *
 get_texcoord(nir_builder *b, lower_drawpixels_state *state)
 {
+   if (b->shader->info.io_lowered) {
+      nir_def *baryc =
+         nir_load_barycentric_pixel(b, 32, .interp_mode = INTERP_MODE_SMOOTH);
+      return nir_load_interpolated_input(b, 4, 32, baryc, nir_imm_int(b, 0),
+                                         .io_semantics.location = VARYING_SLOT_TEX0);
+   }
+
   if (state->texcoord == NULL) {
      state->texcoord = nir_get_variable_with_location(state->shader, nir_var_shader_in,
                                                       VARYING_SLOT_TEX0, glsl_vec4_type());