Conor McCarthy : vkd3d-shader/spirv: Align constant buffer sizes to 16 bytes.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 9b64d04ed397168b358c5b505fda5b40cddaf5ca
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/9b64d04ed397168b358c5b505fda5b...

Author: Conor McCarthy <cmccarthy(a)codeweavers.com>
Date:   Fri Oct  6 00:39:34 2023 +1000

vkd3d-shader/spirv: Align constant buffer sizes to 16 bytes.

DXIL constant buffer sizes are not aligned to 16 bytes.

---

 libs/vkd3d-shader/spirv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index bd9e7a33..2dab97cc 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -5639,7 +5639,8 @@ static void spirv_compiler_emit_cbv_declaration(struct spirv_compiler *compiler,
     reg.idx[1].offset = range->first;
     reg.idx[2].offset = range->last;
 
-    size = size_in_bytes / (VKD3D_VEC4_SIZE * sizeof(uint32_t));
+    size = align(size_in_bytes, VKD3D_VEC4_SIZE * sizeof(uint32_t));
+    size /= VKD3D_VEC4_SIZE * sizeof(uint32_t);
 
     if ((push_cb = spirv_compiler_find_push_constant_buffer(compiler, range)))
     {