i965/fs: fix number of output components for doubles

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 9 insertions, 4 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index d0ffff233a7..c21c9c5db90 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -103,10 +103,15 @@ fs_visitor::nir_setup_single_output_varying(fs_reg *reg,
       }
    } else {
       assert(type->is_scalar() || type->is_vector());
-      this->outputs[*location] = *reg;
-      this->output_components[*location] = type->vector_elements;
-      *reg = offset(*reg, bld, 4);
-      (*location)++;
+      unsigned num_elements = type->vector_elements;
+      if (type->is_double())
+         num_elements *= 2;
+      for (unsigned count = 0; count < num_elements; count += 4) {
+         this->outputs[*location] = *reg;
+         this->output_components[*location] = MIN2(4, num_elements - count);
+         *reg = offset(*reg, bld, 4);
+         (*location)++;
+      }
    }
 }