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automatically check for subgroup support when creating a naga Validator

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Elabajaba 2024-06-20 02:19:34 -04:00 committed by Teodor Tanasoaia
parent 9b5035cee1
commit 35477dff9a
2 changed files with 28 additions and 22 deletions
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29
naga/src/valid/mod.rs
View File

@ -124,9 +124,13 @@ bitflags::bitflags! {
/// Support for 64-bit signed and unsigned integers.
const SHADER_INT64 = 0x8000;
/// Support for subgroup operations.
/// Implies support for subgroup operations in both fragment and compute stages,
/// but not necessarily in the vertex stage, which requires [`Capabilities::SUBGROUP_VERTEX_STAGE`].
const SUBGROUP = 0x10000;
/// Support for subgroup barriers.
const SUBGROUP_BARRIER = 0x20000;
/// Support for subgroup operations in the vertex stage.
const SUBGROUP_VERTEX_STAGE = 0x40000;
/// Support for [`AtomicFunction::Min`] and [`AtomicFunction::Max`] on
/// 64-bit integers in the [`Storage`] address space, when the return
/// value is not used.
@ -136,9 +140,9 @@ bitflags::bitflags! {
/// [`AtomicFunction::Min`]: crate::AtomicFunction::Min
/// [`AtomicFunction::Max`]: crate::AtomicFunction::Max
/// [`Storage`]: crate::AddressSpace::Storage
const SHADER_INT64_ATOMIC_MIN_MAX = 0x40000;
const SHADER_INT64_ATOMIC_MIN_MAX = 0x80000;
/// Support for all atomic operations on 64-bit integers.
const SHADER_INT64_ATOMIC_ALL_OPS = 0x80000;
const SHADER_INT64_ATOMIC_ALL_OPS = 0x100000;
}
}
@ -416,11 +420,28 @@ impl crate::TypeInner {
impl Validator {
/// Construct a new validator instance.
pub fn new(flags: ValidationFlags, capabilities: Capabilities) -> Self {
let subgroup_operations = if capabilities.contains(Capabilities::SUBGROUP) {
use SubgroupOperationSet as S;
S::BASIC | S::VOTE | S::ARITHMETIC | S::BALLOT | S::SHUFFLE | S::SHUFFLE_RELATIVE
} else {
SubgroupOperationSet::empty()
};
let subgroup_stages = {
let mut stages = ShaderStages::empty();
if capabilities.contains(Capabilities::SUBGROUP_VERTEX_STAGE) {
stages |= ShaderStages::VERTEX;
}
if capabilities.contains(Capabilities::SUBGROUP) {
stages |= ShaderStages::FRAGMENT | ShaderStages::COMPUTE;
}
stages
};
Validator {
flags,
capabilities,
subgroup_stages: ShaderStages::empty(),
subgroup_operations: SubgroupOperationSet::empty(),
subgroup_stages,
subgroup_operations,
types: Vec::new(),
layouter: Layouter::default(),
location_mask: BitSet::new(),

21
wgpu-core/src/device/mod.rs
View File

@ -543,25 +543,10 @@ pub fn create_validator(
Caps::SUBGROUP_BARRIER,
features.intersects(wgt::Features::SUBGROUP_BARRIER),
);
let mut subgroup_stages = naga::valid::ShaderStages::empty();
subgroup_stages.set(
naga::valid::ShaderStages::COMPUTE | naga::valid::ShaderStages::FRAGMENT,
features.contains(wgt::Features::SUBGROUP),
);
subgroup_stages.set(
naga::valid::ShaderStages::VERTEX,
caps.set(
Caps::SUBGROUP_VERTEX_STAGE,
features.contains(wgt::Features::SUBGROUP_VERTEX),
);
let subgroup_operations = if caps.contains(Caps::SUBGROUP) {
use naga::valid::SubgroupOperationSet as S;
S::BASIC | S::VOTE | S::ARITHMETIC | S::BALLOT | S::SHUFFLE | S::SHUFFLE_RELATIVE
} else {
naga::valid::SubgroupOperationSet::empty()
};
let mut validator = naga::valid::Validator::new(flags, caps);
validator.subgroup_stages(subgroup_stages);
validator.subgroup_operations(subgroup_operations);
validator
naga::valid::Validator::new(flags, caps)
}