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use super::{Error, Span};
pub fn map_address_space(word: &str, span: Span) -> Result<crate::AddressSpace, Error<'_>> {
match word {
"private" => Ok(crate::AddressSpace::Private),
"workgroup" => Ok(crate::AddressSpace::WorkGroup),
"uniform" => Ok(crate::AddressSpace::Uniform),
"storage" => Ok(crate::AddressSpace::Storage {
access: crate::StorageAccess::default(),
}),
"push_constant" => Ok(crate::AddressSpace::PushConstant),
"function" => Ok(crate::AddressSpace::Function),
_ => Err(Error::UnknownAddressSpace(span)),
}
}
pub fn map_built_in(word: &str, span: Span) -> Result<crate::BuiltIn, Error<'_>> {
Ok(match word {
"position" => crate::BuiltIn::Position { invariant: false },
// vertex
"vertex_index" => crate::BuiltIn::VertexIndex,
"instance_index" => crate::BuiltIn::InstanceIndex,
"view_index" => crate::BuiltIn::ViewIndex,
// fragment
"front_facing" => crate::BuiltIn::FrontFacing,
"frag_depth" => crate::BuiltIn::FragDepth,
"primitive_index" => crate::BuiltIn::PrimitiveIndex,
"sample_index" => crate::BuiltIn::SampleIndex,
"sample_mask" => crate::BuiltIn::SampleMask,
// compute
"global_invocation_id" => crate::BuiltIn::GlobalInvocationId,
"local_invocation_id" => crate::BuiltIn::LocalInvocationId,
"local_invocation_index" => crate::BuiltIn::LocalInvocationIndex,
"workgroup_id" => crate::BuiltIn::WorkGroupId,
"workgroup_size" => crate::BuiltIn::WorkGroupSize,
"num_workgroups" => crate::BuiltIn::NumWorkGroups,
_ => return Err(Error::UnknownBuiltin(span)),
})
}
pub fn map_interpolation(word: &str, span: Span) -> Result<crate::Interpolation, Error<'_>> {
match word {
"linear" => Ok(crate::Interpolation::Linear),
"flat" => Ok(crate::Interpolation::Flat),
"perspective" => Ok(crate::Interpolation::Perspective),
_ => Err(Error::UnknownAttribute(span)),
}
}
pub fn map_sampling(word: &str, span: Span) -> Result<crate::Sampling, Error<'_>> {
match word {
"center" => Ok(crate::Sampling::Center),
"centroid" => Ok(crate::Sampling::Centroid),
"sample" => Ok(crate::Sampling::Sample),
_ => Err(Error::UnknownAttribute(span)),
}
}
pub fn map_storage_format(word: &str, span: Span) -> Result<crate::StorageFormat, Error<'_>> {
use crate::StorageFormat as Sf;
Ok(match word {
"r8unorm" => Sf::R8Unorm,
"r8snorm" => Sf::R8Snorm,
"r8uint" => Sf::R8Uint,
"r8sint" => Sf::R8Sint,
"r16uint" => Sf::R16Uint,
"r16sint" => Sf::R16Sint,
"r16float" => Sf::R16Float,
"rg8unorm" => Sf::Rg8Unorm,
"rg8snorm" => Sf::Rg8Snorm,
"rg8uint" => Sf::Rg8Uint,
"rg8sint" => Sf::Rg8Sint,
"r32uint" => Sf::R32Uint,
"r32sint" => Sf::R32Sint,
"r32float" => Sf::R32Float,
"rg16uint" => Sf::Rg16Uint,
"rg16sint" => Sf::Rg16Sint,
"rg16float" => Sf::Rg16Float,
"rgba8unorm" => Sf::Rgba8Unorm,
"rgba8snorm" => Sf::Rgba8Snorm,
"rgba8uint" => Sf::Rgba8Uint,
"rgba8sint" => Sf::Rgba8Sint,
"rgb10a2unorm" => Sf::Rgb10a2Unorm,
"rg11b10float" => Sf::Rg11b10Float,
"rg32uint" => Sf::Rg32Uint,
"rg32sint" => Sf::Rg32Sint,
"rg32float" => Sf::Rg32Float,
"rgba16uint" => Sf::Rgba16Uint,
"rgba16sint" => Sf::Rgba16Sint,
"rgba16float" => Sf::Rgba16Float,
"rgba32uint" => Sf::Rgba32Uint,
"rgba32sint" => Sf::Rgba32Sint,
"rgba32float" => Sf::Rgba32Float,
_ => return Err(Error::UnknownStorageFormat(span)),
})
}
pub fn get_scalar_type(word: &str) -> Option<(crate::ScalarKind, crate::Bytes)> {
match word {
"f16" => Some((crate::ScalarKind::Float, 2)),
"f32" => Some((crate::ScalarKind::Float, 4)),
"f64" => Some((crate::ScalarKind::Float, 8)),
"i8" => Some((crate::ScalarKind::Sint, 1)),
"i16" => Some((crate::ScalarKind::Sint, 2)),
"i32" => Some((crate::ScalarKind::Sint, 4)),
"i64" => Some((crate::ScalarKind::Sint, 8)),
"u8" => Some((crate::ScalarKind::Uint, 1)),
"u16" => Some((crate::ScalarKind::Uint, 2)),
"u32" => Some((crate::ScalarKind::Uint, 4)),
"u64" => Some((crate::ScalarKind::Uint, 8)),
"bool" => Some((crate::ScalarKind::Bool, crate::BOOL_WIDTH)),
_ => None,
}
}
pub fn map_derivative_axis(word: &str) -> Option<crate::DerivativeAxis> {
match word {
"dpdx" => Some(crate::DerivativeAxis::X),
"dpdy" => Some(crate::DerivativeAxis::Y),
"fwidth" => Some(crate::DerivativeAxis::Width),
_ => None,
}
}
pub fn map_relational_fun(word: &str) -> Option<crate::RelationalFunction> {
match word {
"any" => Some(crate::RelationalFunction::Any),
"all" => Some(crate::RelationalFunction::All),
"isFinite" => Some(crate::RelationalFunction::IsFinite),
"isNormal" => Some(crate::RelationalFunction::IsNormal),
_ => None,
}
}
pub fn map_standard_fun(word: &str) -> Option<crate::MathFunction> {
use crate::MathFunction as Mf;
Some(match word {
// comparison
"abs" => Mf::Abs,
"min" => Mf::Min,
"max" => Mf::Max,
"clamp" => Mf::Clamp,
"saturate" => Mf::Saturate,
// trigonometry
"cos" => Mf::Cos,
"cosh" => Mf::Cosh,
"sin" => Mf::Sin,
"sinh" => Mf::Sinh,
"tan" => Mf::Tan,
"tanh" => Mf::Tanh,
"acos" => Mf::Acos,
"asin" => Mf::Asin,
"atan" => Mf::Atan,
"atan2" => Mf::Atan2,
"radians" => Mf::Radians,
"degrees" => Mf::Degrees,
// decomposition
"ceil" => Mf::Ceil,
"floor" => Mf::Floor,
"round" => Mf::Round,
"fract" => Mf::Fract,
"trunc" => Mf::Trunc,
"modf" => Mf::Modf,
"frexp" => Mf::Frexp,
"ldexp" => Mf::Ldexp,
// exponent
"exp" => Mf::Exp,
"exp2" => Mf::Exp2,
"log" => Mf::Log,
"log2" => Mf::Log2,
"pow" => Mf::Pow,
// geometry
"dot" => Mf::Dot,
"outerProduct" => Mf::Outer,
"cross" => Mf::Cross,
"distance" => Mf::Distance,
"length" => Mf::Length,
"normalize" => Mf::Normalize,
"faceForward" => Mf::FaceForward,
"reflect" => Mf::Reflect,
// computational
"sign" => Mf::Sign,
"fma" => Mf::Fma,
"mix" => Mf::Mix,
"step" => Mf::Step,
"smoothstep" => Mf::SmoothStep,
"sqrt" => Mf::Sqrt,
"inverseSqrt" => Mf::InverseSqrt,
"transpose" => Mf::Transpose,
"determinant" => Mf::Determinant,
// bits
"countOneBits" => Mf::CountOneBits,
"reverseBits" => Mf::ReverseBits,
"extractBits" => Mf::ExtractBits,
"insertBits" => Mf::InsertBits,
"firstTrailingBit" => Mf::FindLsb,
"firstLeadingBit" => Mf::FindMsb,
// data packing
"pack4x8snorm" => Mf::Pack4x8snorm,
"pack4x8unorm" => Mf::Pack4x8unorm,
"pack2x16snorm" => Mf::Pack2x16snorm,
"pack2x16unorm" => Mf::Pack2x16unorm,
"pack2x16float" => Mf::Pack2x16float,
// data unpacking
"unpack4x8snorm" => Mf::Unpack4x8snorm,
"unpack4x8unorm" => Mf::Unpack4x8unorm,
"unpack2x16snorm" => Mf::Unpack2x16snorm,
"unpack2x16unorm" => Mf::Unpack2x16unorm,
"unpack2x16float" => Mf::Unpack2x16float,
_ => return None,
})
}
pub fn map_conservative_depth(
word: &str,
span: Span,
) -> Result<crate::ConservativeDepth, Error<'_>> {
use crate::ConservativeDepth as Cd;
match word {
"greater_equal" => Ok(Cd::GreaterEqual),
"less_equal" => Ok(Cd::LessEqual),
"unchanged" => Ok(Cd::Unchanged),
_ => Err(Error::UnknownConservativeDepth(span)),
}
}
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