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Fix #2165 (#2167)

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marc0246 2023-03-30 20:55:53 +02:00 committed by GitHub
parent 5a050d85bf
commit 836b9098ea
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 8 deletions
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27
vulkano/macros/src/derive_vertex.rs
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@ -52,7 +52,7 @@ pub fn derive_vertex(ast: syn::DeriveInput) -> Result<TokenStream> {
} else if attr_ident == "format" {
let format_ident = attr.parse_args_with(Ident::parse)?;
format = quote! {
let format = ::#crate_ident::format::Format::#format_ident;
::#crate_ident::format::Format::#format_ident;
};
}
}
@ -66,23 +66,34 @@ pub fn derive_vertex(ast: syn::DeriveInput) -> Result<TokenStream> {
members = quote! {
#members
let field_size = ::std::mem::size_of::<#field_ty>() as u32;
{
#format
let format_size = format.block_size().expect("no block size for format") as u32;
let field_align = ::std::mem::align_of::<#field_ty>();
offset = (offset + field_align - 1) & !(field_align - 1);
let field_size = ::std::mem::size_of::<#field_ty>();
let format = #format;
let format_size = format
.block_size()
.expect("no block size for format") as usize;
let num_elements = field_size / format_size;
let remainder = field_size % format_size;
::std::assert!(remainder == 0, "struct field `{}` size does not fit multiple of format size", #field_name_lit);
::std::assert!(
remainder == 0,
"struct field `{}` size does not fit multiple of format size",
#field_name_lit,
);
members.insert(
#name.to_string(),
::#crate_ident::pipeline::graphics::vertex_input::VertexMemberInfo {
offset,
offset: offset.try_into().unwrap(),
format,
num_elements,
num_elements: num_elements.try_into().unwrap(),
},
);
offset += field_size;
}
offset += field_size as usize;
};
}
}