Conor McCarthy : vkd3d-shader/dxil: Always apply the signature element start column to used_mask.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 7ca6a5452a87ce4cf9d7b65e21bbaf2033671738
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/7ca6a5452a87ce4cf9d7b65e21bbaf...

Author: Conor McCarthy <cmccarthy(a)codeweavers.com>
Date:   Tue Oct 31 12:38:34 2023 +1000

vkd3d-shader/dxil: Always apply the signature element start column to used_mask.

The used_mask value loaded from an additional tag/value pair is relative
to the start column.

---

 libs/vkd3d-shader/dxil.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/dxil.c b/libs/vkd3d-shader/dxil.c
index 99cf3e36..18004139 100644
--- a/libs/vkd3d-shader/dxil.c
+++ b/libs/vkd3d-shader/dxil.c
@@ -4070,10 +4070,12 @@ static enum vkd3d_result sm6_parser_read_signature(struct sm6_parser *sm6, const
             return VKD3D_ERROR_INVALID_SHADER;
         }
 
-        e->mask = vkd3d_write_mask_from_component_count(column_count) << index;
+        e->mask = vkd3d_write_mask_from_component_count(column_count);
         e->used_mask = e->mask;
+        e->mask <<= index;
 
         signature_element_read_additional_element_values(e, element_node, sm6);
+        e->used_mask <<= index;
 
         m = element_node->operands[4];
         if (!sm6_metadata_value_is_node(m))