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add vertex buffer flag to uniform attributes

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This commit is contained in:
Carter Anderson 2020-03-15 12:35:02 -07:00
parent 1332630fa3
commit c1e66089cc
1 changed files with 19 additions and 2 deletions
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21
bevy_derive/src/lib.rs
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@ -39,6 +39,8 @@ struct UniformAttributeArgs {
pub ignore: Option<bool>,
#[darling(default)]
pub shader_def: Option<bool>,
#[darling(default)]
pub vertex_buffer: Option<bool>,
}
#[proc_macro_derive(Uniforms, attributes(uniform))]
@ -121,7 +123,13 @@ pub fn derive_uniforms(input: TokenStream) -> TokenStream {
let mut uniform_name_strings = Vec::new();
let mut texture_and_sampler_name_strings = Vec::new();
let mut texture_and_sampler_name_idents = Vec::new();
let field_infos = active_uniform_fields.iter().map(|f| {
let field_infos = uniform_fields.iter().filter(|(_field, attrs)| {
attrs.is_none()
|| match attrs.as_ref().unwrap().ignore {
Some(ignore) => !ignore,
None => true,
}
}).map(|(f, attrs)| {
let field_name = f.ident.as_ref().unwrap().to_string();
let uniform = format!("{}_{}", struct_name, field_name);
let texture = format!("{}_texture", uniform);
@ -131,12 +139,21 @@ pub fn derive_uniforms(input: TokenStream) -> TokenStream {
texture_and_sampler_name_strings.push(sampler.clone());
texture_and_sampler_name_idents.push(f.ident.clone());
texture_and_sampler_name_idents.push(f.ident.clone());
let is_vertex_buffer_member = match attrs {
Some(attrs) => {
match attrs.vertex_buffer {
Some(vertex_buffer) => vertex_buffer,
None => false,
}
},
None => false,
};
quote!(bevy::render::shader::FieldInfo {
name: #field_name,
uniform_name: #uniform,
texture_name: #texture,
sampler_name: #sampler,
is_vertex_buffer_member: false,
is_vertex_buffer_member: #is_vertex_buffer_member,
})
});