use super::{Error, Span}; pub fn map_address_space(word: &str, span: Span) -> Result> { 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> { 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> { 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> { 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> { 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 { 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 { 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 { 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> { 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)), } }