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use super::error::Error;
use num_traits::cast::FromPrimitive;
use std::convert::TryInto;
pub(super) const fn map_binary_operator(word: spirv::Op) -> Result<crate::BinaryOperator, Error> {
use crate::BinaryOperator;
use spirv::Op;
match word {
// Arithmetic Instructions +, -, *, /, %
Op::IAdd | Op::FAdd => Ok(BinaryOperator::Add),
Op::ISub | Op::FSub => Ok(BinaryOperator::Subtract),
Op::IMul | Op::FMul => Ok(BinaryOperator::Multiply),
Op::UDiv | Op::SDiv | Op::FDiv => Ok(BinaryOperator::Divide),
Op::SRem => Ok(BinaryOperator::Modulo),
// Relational and Logical Instructions
Op::IEqual | Op::FOrdEqual | Op::FUnordEqual | Op::LogicalEqual => {
Ok(BinaryOperator::Equal)
}
Op::INotEqual | Op::FOrdNotEqual | Op::FUnordNotEqual | Op::LogicalNotEqual => {
Ok(BinaryOperator::NotEqual)
}
Op::ULessThan | Op::SLessThan | Op::FOrdLessThan | Op::FUnordLessThan => {
Ok(BinaryOperator::Less)
}
Op::ULessThanEqual
| Op::SLessThanEqual
| Op::FOrdLessThanEqual
| Op::FUnordLessThanEqual => Ok(BinaryOperator::LessEqual),
Op::UGreaterThan | Op::SGreaterThan | Op::FOrdGreaterThan | Op::FUnordGreaterThan => {
Ok(BinaryOperator::Greater)
}
Op::UGreaterThanEqual
| Op::SGreaterThanEqual
| Op::FOrdGreaterThanEqual
| Op::FUnordGreaterThanEqual => Ok(BinaryOperator::GreaterEqual),
Op::BitwiseOr => Ok(BinaryOperator::InclusiveOr),
Op::BitwiseXor => Ok(BinaryOperator::ExclusiveOr),
Op::BitwiseAnd => Ok(BinaryOperator::And),
_ => Err(Error::UnknownBinaryOperator(word)),
}
}
pub(super) const fn map_relational_fun(
word: spirv::Op,
) -> Result<crate::RelationalFunction, Error> {
use crate::RelationalFunction as Rf;
use spirv::Op;
match word {
Op::All => Ok(Rf::All),
Op::Any => Ok(Rf::Any),
Op::IsNan => Ok(Rf::IsNan),
Op::IsInf => Ok(Rf::IsInf),
Op::IsFinite => Ok(Rf::IsFinite),
Op::IsNormal => Ok(Rf::IsNormal),
_ => Err(Error::UnknownRelationalFunction(word)),
}
}
pub(super) const fn map_vector_size(word: spirv::Word) -> Result<crate::VectorSize, Error> {
match word {
2 => Ok(crate::VectorSize::Bi),
3 => Ok(crate::VectorSize::Tri),
4 => Ok(crate::VectorSize::Quad),
_ => Err(Error::InvalidVectorSize(word)),
}
}
pub(super) fn map_image_dim(word: spirv::Word) -> Result<crate::ImageDimension, Error> {
use spirv::Dim as D;
match D::from_u32(word) {
Some(D::Dim1D) => Ok(crate::ImageDimension::D1),
Some(D::Dim2D) => Ok(crate::ImageDimension::D2),
Some(D::Dim3D) => Ok(crate::ImageDimension::D3),
Some(D::DimCube) => Ok(crate::ImageDimension::Cube),
_ => Err(Error::UnsupportedImageDim(word)),
}
}
pub(super) fn map_image_format(word: spirv::Word) -> Result<crate::StorageFormat, Error> {
match spirv::ImageFormat::from_u32(word) {
Some(spirv::ImageFormat::R8) => Ok(crate::StorageFormat::R8Unorm),
Some(spirv::ImageFormat::R8Snorm) => Ok(crate::StorageFormat::R8Snorm),
Some(spirv::ImageFormat::R8ui) => Ok(crate::StorageFormat::R8Uint),
Some(spirv::ImageFormat::R8i) => Ok(crate::StorageFormat::R8Sint),
Some(spirv::ImageFormat::R16ui) => Ok(crate::StorageFormat::R16Uint),
Some(spirv::ImageFormat::R16i) => Ok(crate::StorageFormat::R16Sint),
Some(spirv::ImageFormat::R16f) => Ok(crate::StorageFormat::R16Float),
Some(spirv::ImageFormat::Rg8) => Ok(crate::StorageFormat::Rg8Unorm),
Some(spirv::ImageFormat::Rg8Snorm) => Ok(crate::StorageFormat::Rg8Snorm),
Some(spirv::ImageFormat::Rg8ui) => Ok(crate::StorageFormat::Rg8Uint),
Some(spirv::ImageFormat::Rg8i) => Ok(crate::StorageFormat::Rg8Sint),
Some(spirv::ImageFormat::R32ui) => Ok(crate::StorageFormat::R32Uint),
Some(spirv::ImageFormat::R32i) => Ok(crate::StorageFormat::R32Sint),
Some(spirv::ImageFormat::R32f) => Ok(crate::StorageFormat::R32Float),
Some(spirv::ImageFormat::Rg16ui) => Ok(crate::StorageFormat::Rg16Uint),
Some(spirv::ImageFormat::Rg16i) => Ok(crate::StorageFormat::Rg16Sint),
Some(spirv::ImageFormat::Rg16f) => Ok(crate::StorageFormat::Rg16Float),
Some(spirv::ImageFormat::Rgba8) => Ok(crate::StorageFormat::Rgba8Unorm),
Some(spirv::ImageFormat::Rgba8Snorm) => Ok(crate::StorageFormat::Rgba8Snorm),
Some(spirv::ImageFormat::Rgba8ui) => Ok(crate::StorageFormat::Rgba8Uint),
Some(spirv::ImageFormat::Rgba8i) => Ok(crate::StorageFormat::Rgba8Sint),
Some(spirv::ImageFormat::Rgb10a2ui) => Ok(crate::StorageFormat::Rgb10a2Unorm),
Some(spirv::ImageFormat::R11fG11fB10f) => Ok(crate::StorageFormat::Rg11b10Float),
Some(spirv::ImageFormat::Rg32ui) => Ok(crate::StorageFormat::Rg32Uint),
Some(spirv::ImageFormat::Rg32i) => Ok(crate::StorageFormat::Rg32Sint),
Some(spirv::ImageFormat::Rg32f) => Ok(crate::StorageFormat::Rg32Float),
Some(spirv::ImageFormat::Rgba16ui) => Ok(crate::StorageFormat::Rgba16Uint),
Some(spirv::ImageFormat::Rgba16i) => Ok(crate::StorageFormat::Rgba16Sint),
Some(spirv::ImageFormat::Rgba16f) => Ok(crate::StorageFormat::Rgba16Float),
Some(spirv::ImageFormat::Rgba32ui) => Ok(crate::StorageFormat::Rgba32Uint),
Some(spirv::ImageFormat::Rgba32i) => Ok(crate::StorageFormat::Rgba32Sint),
Some(spirv::ImageFormat::Rgba32f) => Ok(crate::StorageFormat::Rgba32Float),
_ => Err(Error::UnsupportedImageFormat(word)),
}
}
pub(super) fn map_width(word: spirv::Word) -> Result<crate::Bytes, Error> {
(word >> 3) // bits to bytes
.try_into()
.map_err(|_| Error::InvalidTypeWidth(word))
}
pub(super) fn map_builtin(word: spirv::Word, invariant: bool) -> Result<crate::BuiltIn, Error> {
use spirv::BuiltIn as Bi;
Ok(match spirv::BuiltIn::from_u32(word) {
Some(Bi::Position | Bi::FragCoord) => crate::BuiltIn::Position { invariant },
Some(Bi::ViewIndex) => crate::BuiltIn::ViewIndex,
// vertex
Some(Bi::BaseInstance) => crate::BuiltIn::BaseInstance,
Some(Bi::BaseVertex) => crate::BuiltIn::BaseVertex,
Some(Bi::ClipDistance) => crate::BuiltIn::ClipDistance,
Some(Bi::CullDistance) => crate::BuiltIn::CullDistance,
Some(Bi::InstanceIndex) => crate::BuiltIn::InstanceIndex,
Some(Bi::PointSize) => crate::BuiltIn::PointSize,
Some(Bi::VertexIndex) => crate::BuiltIn::VertexIndex,
// fragment
Some(Bi::FragDepth) => crate::BuiltIn::FragDepth,
Some(Bi::FrontFacing) => crate::BuiltIn::FrontFacing,
Some(Bi::PrimitiveId) => crate::BuiltIn::PrimitiveIndex,
Some(Bi::SampleId) => crate::BuiltIn::SampleIndex,
Some(Bi::SampleMask) => crate::BuiltIn::SampleMask,
// compute
Some(Bi::GlobalInvocationId) => crate::BuiltIn::GlobalInvocationId,
Some(Bi::LocalInvocationId) => crate::BuiltIn::LocalInvocationId,
Some(Bi::LocalInvocationIndex) => crate::BuiltIn::LocalInvocationIndex,
Some(Bi::WorkgroupId) => crate::BuiltIn::WorkGroupId,
Some(Bi::WorkgroupSize) => crate::BuiltIn::WorkGroupSize,
Some(Bi::NumWorkgroups) => crate::BuiltIn::NumWorkGroups,
_ => return Err(Error::UnsupportedBuiltIn(word)),
})
}
pub(super) fn map_storage_class(word: spirv::Word) -> Result<super::ExtendedClass, Error> {
use super::ExtendedClass as Ec;
use spirv::StorageClass as Sc;
Ok(match Sc::from_u32(word) {
Some(Sc::Function) => Ec::Global(crate::AddressSpace::Function),
Some(Sc::Input) => Ec::Input,
Some(Sc::Output) => Ec::Output,
Some(Sc::Private) => Ec::Global(crate::AddressSpace::Private),
Some(Sc::UniformConstant) => Ec::Global(crate::AddressSpace::Handle),
Some(Sc::StorageBuffer) => Ec::Global(crate::AddressSpace::Storage {
//Note: this is restricted by decorations later
access: crate::StorageAccess::all(),
}),
// we expect the `Storage` case to be filtered out before calling this function.
Some(Sc::Uniform) => Ec::Global(crate::AddressSpace::Uniform),
Some(Sc::Workgroup) => Ec::Global(crate::AddressSpace::WorkGroup),
Some(Sc::PushConstant) => Ec::Global(crate::AddressSpace::PushConstant),
_ => return Err(Error::UnsupportedStorageClass(word)),
})
}
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