rFactor2_vk_hud/build.rs

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use std::{fs::File, io::Write, path::Path, process::Command, str::from_utf8};
const VK_INCLUDE: &str = "/usr/include/vulkan";
const VK_HEADER: &[&str] = &[
"vulkan_core.h",
"vulkan_xcb.h",
"vulkan_xlib.h",
"vulkan_wayland.h",
];
const FN_PREFIX: &str = "PFN_";
const SHADER: &[&str] = &[
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"src/overlay/elements/radar/single_color.vert",
"src/overlay/elements/radar/single_color.frag",
"src/overlay/elements/pedals/history.vert",
"src/overlay/elements/pedals/history.frag",
];
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fn query_vulkan_function_typedefs() {
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let mut fns = Vec::new();
for header in VK_HEADER {
Command::new("ctags")
.arg("--help")
.output()
.expect("Failed to execute ctags. Maybe you need to install it first?");
let output = Command::new("ctags")
.arg("-x")
.arg("--c-types=t")
.arg(format!("{}/{}", VK_INCLUDE, header))
.output()
.expect(&format!("failed to open file {}/{}", VK_INCLUDE, header));
let output_splits = from_utf8(&output.stdout).unwrap().split_whitespace();
for split in output_splits {
if split.starts_with(FN_PREFIX) {
fns.push(split.trim_start_matches(FN_PREFIX).to_string())
}
}
}
let path = Path::new("vk_functions");
let mut file = File::create(path).unwrap();
for func in fns {
file.write_all(format!("{}\n", func).as_bytes()).unwrap();
}
}
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fn compile_shader() {
Command::new("glslangValidator")
.arg("--help")
.output()
.expect("Failed to execute glslangValidator. Maybe you need to install it first?");
for shader in SHADER {
Command::new("glslangValidator")
.arg("-V")
.arg(shader)
.arg("-o")
.arg(&format!("{}.spv", shader))
.output()
.expect(&format!("Failed to compile {}", shader));
}
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}
fn main() {
query_vulkan_function_typedefs();
compile_shader();
}