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[convert] allow entry point name for GLSL output

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This commit is contained in:
Dzmitry Malyshau 2020-12-13 01:20:22 -05:00 committed by Dzmitry Malyshau
parent f1ad97b049
commit 899a918bf2
2 changed files with 19 additions and 18 deletions
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4
.gitignore vendored
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@ -7,3 +7,7 @@ Cargo.lock
/*.metal
/*.metallib
/*.ron
/*.spv
/*.vert
/*.frag
/*.comp

33
examples/convert.rs
View File

@ -196,32 +196,29 @@ fn main() {
}
#[cfg(feature = "glsl-out")]
stage @ "vert" | stage @ "frag" | stage @ "comp" => {
use naga::{
back::glsl::{self, Options, Version},
ShaderStage,
};
use naga::back::glsl;
let version = match args.get(3).map(|p| p.as_str()) {
Some("core") => {
Version::Desktop(args.get(4).and_then(|v| v.parse().ok()).unwrap_or(330))
let version = {
let arg = args.get(3).map_or("es", |p| p.as_str());
if arg.starts_with("core") {
glsl::Version::Desktop(arg[4..].parse().unwrap_or(330))
} else if arg.starts_with("es") {
glsl::Version::Embedded(arg[2..].parse().unwrap_or(310))
} else {
panic!("Unknown profile: {}", arg)
}
Some("es") => {
Version::Embedded(args.get(4).and_then(|v| v.parse().ok()).unwrap_or(310))
}
Some(_) => panic!("Unknown profile"),
_ => Version::Embedded(310),
};
let options = Options {
let name = args.get(4).map_or("main", |p| p.as_str()).to_string();
let options = glsl::Options {
version,
entry_point: (
match stage {
"vert" => ShaderStage::Vertex,
"frag" => ShaderStage::Fragment,
"comp" => ShaderStage::Compute,
"vert" => naga::ShaderStage::Vertex,
"frag" => naga::ShaderStage::Fragment,
"comp" => naga::ShaderStage::Compute,
_ => unreachable!(),
},
String::from("main"),
name,
),
};