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Handle Unpack2x16float in hlsl (#2002)

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This commit is contained in:
Ashley
2022-07-17 09:18:48 +02:00
committed by GitHub
parent 8f302a89ef
commit cc985396da
1 changed files with 9 additions and 0 deletions
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9
src/back/hlsl/writer.rs
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@@ -2422,6 +2422,7 @@ impl<'a, W: fmt::Write> super::Writer<'a, W> {
enum Function {
Asincosh { is_sin: bool },
Atanh,
Unpack2x16float,
Regular(&'static str),
MissingIntOverload(&'static str),
}
@@ -2489,6 +2490,7 @@ impl<'a, W: fmt::Write> super::Writer<'a, W> {
Mf::ReverseBits => Function::MissingIntOverload("reversebits"),
Mf::FindLsb => Function::Regular("firstbitlow"),
Mf::FindMsb => Function::Regular("firstbithigh"),
Mf::Unpack2x16float => Function::Unpack2x16float,
_ => return Err(Error::Unimplemented(format!("write_expr_math {:?}", fun))),
};
@@ -2512,6 +2514,13 @@ impl<'a, W: fmt::Write> super::Writer<'a, W> {
self.write_expr(module, arg, func_ctx)?;
write!(self.out, "))")?;
}
Function::Unpack2x16float => {
write!(self.out, "float2(f16tof32(")?;
self.write_expr(module, arg, func_ctx)?;
write!(self.out, "), f16tof32((")?;
self.write_expr(module, arg, func_ctx)?;
write!(self.out, ") >> 16))")?;
}
Function::Regular(fun_name) => {
write!(self.out, "{}(", fun_name)?;
self.write_expr(module, arg, func_ctx)?;