Conor McCarthy : vkd3d-shader/spirv: Handle signature element mask left shift in spirv_compiler_emit_output().

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 61a550017f7d86f6b72306ff5f76b9cdef20deb3
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/61a550017f7d86f6b72306ff5f76b9...

Author: Conor McCarthy 
Date:   Thu Jun 15 14:02:34 2023 +1000

vkd3d-shader/spirv: Handle signature element mask left shift in spirv_compiler_emit_output().

Element masks can have a left shift in DXIL, but these must start at
bit 0 in the register info. The SPIR-V declaration will either be a
builtin or have SpvDecorationComponent.

---

libs/vkd3d-shader/spirv.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 7232219f..f93960d6 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -4965,7 +4965,6 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
         component_type = builtin->component_type;
         if (!builtin->spirv_array_size)
             output_component_count = builtin->component_count;
-        component_idx = 0;
     }
     else
     {
@@ -4979,14 +4978,9 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
             || needs_private_io_variable(builtin))
     {
         use_private_variable = true;
-        reg_write_mask = write_mask;
-    }
-    else
-    {
-        component_idx = vkd3d_write_mask_get_component_idx(write_mask);
-        reg_write_mask = write_mask >> component_idx;
     }

+    reg_write_mask = write_mask >> component_idx;
     vkd3d_symbol_make_register(&reg_symbol, reg);

if (rb_get(&compiler->symbol_table, &reg_symbol))