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e7dab3c9ea
Other builtins use WGSL terms instead of SPIR-V terms too, and the WGSL writer is relying on the output of `operator<<(Builtin)`, which just stringifies the name of the enum. This also matches the equivalent `semantic::Usage::kSampleIndex` enum. Added test coverage for WGSL builtin generation. Bug: tint:372 Change-Id: I8077d22c4a5ddf67b1ad07e7365453db74db8e7d Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/41660 Reviewed-by: Ben Clayton <bclayton@google.com> Reviewed-by: dan sinclair <dsinclair@chromium.org> Commit-Queue: dan sinclair <dsinclair@chromium.org> Auto-Submit: James Price <jrprice@google.com>
83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "src/ast/builtin.h"
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namespace tint {
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namespace ast {
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std::ostream& operator<<(std::ostream& out, Builtin builtin) {
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switch (builtin) {
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case Builtin::kNone: {
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out << "none";
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break;
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}
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case Builtin::kPosition: {
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out << "position";
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break;
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}
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case Builtin::kVertexIndex: {
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out << "vertex_index";
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break;
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}
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case Builtin::kInstanceIndex: {
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out << "instance_index";
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break;
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}
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case Builtin::kFrontFacing: {
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out << "front_facing";
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break;
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}
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case Builtin::kFragCoord: {
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out << "frag_coord";
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break;
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}
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case Builtin::kFragDepth: {
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out << "frag_depth";
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break;
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}
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case Builtin::kLocalInvocationId: {
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out << "local_invocation_id";
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break;
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}
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case Builtin::kLocalInvocationIndex: {
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out << "local_invocation_index";
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break;
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}
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case Builtin::kGlobalInvocationId: {
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out << "global_invocation_id";
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break;
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}
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case Builtin::kSampleIndex: {
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out << "sample_index";
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break;
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}
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case Builtin::kSampleMaskIn: {
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out << "sample_mask_in";
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break;
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}
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case Builtin::kSampleMaskOut: {
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out << "sample_mask_out";
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break;
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}
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case Builtin::kPointSize: {
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out << "pointsize";
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}
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}
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return out;
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}
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} // namespace ast
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} // namespace tint
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