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// Copyright (c) 2021 The Vulkano developers
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or https://opensource.org/licenses/MIT>,
// at your option. All files in the project carrying such
// notice may not be copied, modified, or distributed except
// according to those terms.
use indexmap::IndexMap;
use std::{collections::HashMap, io::Write, path::Path};
use vk_parse::{
Extension, ExtensionChild, Feature, InterfaceItem, Registry, RegistryChild, Type,
TypeCodeMarkup, TypeSpec, TypesChild,
};
mod extensions;
mod features;
mod fns;
mod properties;
pub fn write<W: Write>(writer: &mut W) {
let registry = get_registry("vk.xml");
let aliases = get_aliases(®istry);
let extensions = get_extensions(®istry);
let features = get_features(®istry);
let types = get_types(®istry, &aliases, &features, &extensions);
let header_version = get_header_version(®istry);
write!(
writer,
"\
// This file is auto-generated by vulkano-gen from vk.xml header version {}.\n\
// It should not be edited manually. Changes should be made by editing vulkano-gen.\n\
\n",
header_version
)
.unwrap();
extensions::write(writer, &extensions);
write!(writer, "\n\n").unwrap();
fns::write(writer, &extensions);
write!(writer, "\n\n").unwrap();
features::write(writer, &types, &extensions);
write!(writer, "\n\n").unwrap();
properties::write(writer, &types, &extensions);
write!(writer, "\n").unwrap();
}
fn get_registry<P: AsRef<Path> + ?Sized>(path: &P) -> Registry {
let (registry, errors) = vk_parse::parse_file(path.as_ref()).unwrap();
if !errors.is_empty() {
eprintln!("The following errors were found while parsing the file:");
for error in errors {
eprintln!("{:?}", error);
}
}
registry
}
fn get_aliases(registry: &Registry) -> HashMap<&str, &str> {
registry
.0
.iter()
.filter_map(|child| {
if let RegistryChild::Types(types) = child {
return Some(types.children.iter().filter_map(|ty| {
if let TypesChild::Type(ty) = ty {
if let Some(alias) = ty.alias.as_ref().map(|s| s.as_str()) {
return Some((ty.name.as_ref().unwrap().as_str(), alias));
}
}
None
}));
}
None
})
.flatten()
.collect()
}
fn get_extensions(registry: &Registry) -> IndexMap<&str, &Extension> {
let iter = registry
.0
.iter()
.filter_map(|child| {
if let RegistryChild::Extensions(ext) = child {
return Some(ext.children.iter().filter_map(|ext| {
if ext.supported.as_ref().map(|s| s.as_str()) == Some("vulkan")
&& ext.obsoletedby.is_none()
{
return Some(ext);
}
None
}));
}
None
})
.flatten();
let extensions: HashMap<&str, &Extension> =
iter.clone().map(|ext| (ext.name.as_str(), ext)).collect();
let mut names: Vec<_> = iter.map(|ext| ext.name.as_str()).collect();
names.sort_unstable_by_key(|name| {
if name.starts_with("VK_KHR_") {
(0, name.to_owned())
} else if name.starts_with("VK_EXT_") {
(1, name.to_owned())
} else {
(2, name.to_owned())
}
});
names.iter().map(|&name| (name, extensions[name])).collect()
}
fn get_features(registry: &Registry) -> IndexMap<&str, &Feature> {
registry
.0
.iter()
.filter_map(|child| {
if let RegistryChild::Feature(feat) = child {
return Some((feat.name.as_str(), feat));
}
None
})
.collect()
}
fn get_types<'a>(
registry: &'a Registry,
aliases: &'a HashMap<&str, &str>,
features: &'a IndexMap<&str, &Feature>,
extensions: &'a IndexMap<&str, &Extension>,
) -> HashMap<&'a str, (&'a Type, Vec<&'a str>)> {
let mut types: HashMap<&str, (&Type, Vec<&str>)> = registry
.0
.iter()
.filter_map(|child| {
if let RegistryChild::Types(types) = child {
return Some(types.children.iter().filter_map(|ty| {
if let TypesChild::Type(ty) = ty {
if ty.alias.is_none() {
return ty.name.as_ref().map(|name| (name.as_str(), (ty, vec![])));
}
}
None
}));
}
None
})
.flatten()
.collect();
features
.iter()
.map(|(name, feature)| (name, &feature.children))
.chain(extensions.iter().map(|(name, ext)| (name, &ext.children)))
.for_each(|(provided_by, children)| {
children
.iter()
.filter_map(|child| {
if let ExtensionChild::Require { items, .. } = child {
return Some(items.iter());
}
None
})
.flatten()
.filter_map(|item| {
if let InterfaceItem::Type { name, .. } = item {
return Some(name.as_str());
}
None
})
.for_each(|item_name| {
let item_name = aliases.get(item_name).unwrap_or(&item_name);
if let Some(ty) = types.get_mut(item_name) {
if !ty.1.contains(provided_by) {
ty.1.push(provided_by);
}
}
});
});
types
.into_iter()
.filter(|(_key, val)| !val.1.is_empty())
.collect()
}
fn get_header_version(registry: &Registry) -> u16 {
registry.0.iter()
.find_map(|child| -> Option<u16> {
if let RegistryChild::Types(types) = child {
return types.children.iter().find_map(|ty| -> Option<u16> {
if let TypesChild::Type(ty) = ty {
if let TypeSpec::Code(code) = &ty.spec {
if code.markup.iter().any(|mkup| matches!(mkup, TypeCodeMarkup::Name(name) if name == "VK_HEADER_VERSION")) {
return Some(code.code.rsplit_once(' ').unwrap().1.parse().unwrap());
}
}
}
None
});
}
None
})
.unwrap()
}
|
