From 35f8e092f2aa3ed5e3cf03387e712f798ff4850e Mon Sep 17 00:00:00 2001 From: Julius Ikkala Date: Thu, 21 Aug 2025 08:47:18 +0300 Subject: Introduce CDataLayout & -fvk-use-c-layout (#8136) Closes #8112. ~~The issue asks for a "C layout", but in this PR I use the term "CPU layout" because this naming was pre-existing in the codebase as `kCPULayoutRulesImpl_`. The primary purpose of this layout is to match CPU-side struct definitions with the shader side. I'm open to better naming suggestions, though.~~ Edit: switched back to using `CDataLayout` & `-fvk-use-c-layout`, as the CPU target depends on the object layout rules of existing CPU layout rules, but they're incompatible with actual shaders. So a new `kCLayoutRulesImpl_` was needed anyway. --------- Co-authored-by: Ellie Hermaszewska --- docs/command-line-slangc-reference.md | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'docs/command-line-slangc-reference.md') diff --git a/docs/command-line-slangc-reference.md b/docs/command-line-slangc-reference.md index cf858a54c..36947d7b4 100644 --- a/docs/command-line-slangc-reference.md +++ b/docs/command-line-slangc-reference.md @@ -474,6 +474,11 @@ Make data accessed through ConstantBuffer, ParameterBlock, StructuredBuffer, Byt Pack members using FXCs member packing rules when targeting GLSL or SPIRV. + +### -fvk-use-c-layout +Make data accessed through ConstantBuffer, ParameterBlock, StructuredBuffer, ByteAddressBuffer and general pointers follow the C/C++ structure layout rules when targeting SPIRV. + + ### -fvk-b-shift, -fvk-s-shift, -fvk-t-shift, -fvk-u-shift -- cgit v1.2.3