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Add support for [[builtin(workgroup_id)]]

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This is a trivial mapping to/from WGSL in all cases.

Bug: tint:478
Change-Id: I7f21a2392543a880906b54fddbdb8bbd149a526e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/48140
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This commit is contained in:
James Price
2021-04-16 19:57:34 +00:00
committed by Commit Bot service account
parent 5cd71b8c0a
commit 395b48825a
13 changed files with 24 additions and 0 deletions
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4
src/ast/builtin.cc
View File

@@ -59,6 +59,10 @@ std::ostream& operator<<(std::ostream& out, Builtin builtin) {
out << "global_invocation_id";
break;
}
case Builtin::kWorkgroupId: {
out << "workgroup_id";
break;
}
case Builtin::kSampleIndex: {
out << "sample_index";
break;

1
src/ast/builtin.h
View File

@@ -32,6 +32,7 @@ enum class Builtin {
kLocalInvocationId,
kLocalInvocationIndex,
kGlobalInvocationId,
kWorkgroupId,
kSampleIndex,
kSampleMask,
kSampleMaskIn, // TODO(crbug.com/tint/715): Remove this