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688fe4477d
There's now one remainin use of the semantic info in the WGSL writer - the transformation of [[offset]] into padded fields. This does not belong in the WGSL writer, but instead part of the transform::Wgsl sanitizer. Bug: tint:798 Change-Id: I95ba11f022c41150cc12de84a4085cd7d42019fe Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/50822 Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: David Neto <dneto@google.com> Reviewed-by: James Price <jrprice@google.com>
86 lines
2.9 KiB
C++
86 lines
2.9 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/sem/variable.h"
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#include "src/writer/wgsl/test_helper.h"
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namespace tint {
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namespace writer {
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namespace wgsl {
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namespace {
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using WgslGeneratorImplTest = TestHelper;
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TEST_F(WgslGeneratorImplTest, Generate) {
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Func("my_func", ast::VariableList{}, ty.void_(), ast::StatementList{},
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ast::DecorationList{});
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GeneratorImpl& gen = Build();
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ASSERT_TRUE(gen.Generate()) << gen.error();
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EXPECT_EQ(gen.result(), R"(fn my_func() {
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}
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)");
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}
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struct WgslBuiltinData {
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ast::Builtin builtin;
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const char* attribute_name;
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};
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inline std::ostream& operator<<(std::ostream& out, WgslBuiltinData data) {
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out << data.builtin;
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return out;
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}
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using WgslBuiltinConversionTest = TestParamHelper<WgslBuiltinData>;
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TEST_P(WgslBuiltinConversionTest, Emit) {
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auto params = GetParam();
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auto* var = Global("a", ty.f32(), ast::StorageClass::kPrivate, nullptr,
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ast::DecorationList{
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Builtin(params.builtin),
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});
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GeneratorImpl& gen = Build();
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gen.EmitDecorations(var->decorations());
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EXPECT_EQ(gen.result(),
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"[[builtin(" + std::string(params.attribute_name) + ")]]");
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}
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INSTANTIATE_TEST_SUITE_P(
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WgslGeneratorImplTest,
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WgslBuiltinConversionTest,
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testing::Values(
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WgslBuiltinData{ast::Builtin::kPosition, "position"},
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WgslBuiltinData{ast::Builtin::kVertexIndex, "vertex_index"},
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WgslBuiltinData{ast::Builtin::kInstanceIndex, "instance_index"},
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WgslBuiltinData{ast::Builtin::kFrontFacing, "front_facing"},
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WgslBuiltinData{ast::Builtin::kFragCoord, "frag_coord"},
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WgslBuiltinData{ast::Builtin::kFragDepth, "frag_depth"},
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WgslBuiltinData{ast::Builtin::kLocalInvocationId,
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"local_invocation_id"},
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WgslBuiltinData{ast::Builtin::kLocalInvocationIndex,
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"local_invocation_index"},
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WgslBuiltinData{ast::Builtin::kGlobalInvocationId,
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"global_invocation_id"},
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WgslBuiltinData{ast::Builtin::kWorkgroupId, "workgroup_id"},
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WgslBuiltinData{ast::Builtin::kSampleIndex, "sample_index"},
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WgslBuiltinData{ast::Builtin::kSampleMaskIn, "sample_mask_in"},
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WgslBuiltinData{ast::Builtin::kSampleMaskOut, "sample_mask_out"}));
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} // namespace
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} // namespace wgsl
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} // namespace writer
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} // namespace tint
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