| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <memory> |
| |
| #include "gtest/gtest.h" |
| #include "src/ast/assignment_statement.h" |
| #include "src/ast/identifier_expression.h" |
| #include "src/ast/location_decoration.h" |
| #include "src/ast/member_accessor_expression.h" |
| #include "src/ast/module.h" |
| #include "src/ast/pipeline_stage.h" |
| #include "src/ast/stage_decoration.h" |
| #include "src/ast/type/f32_type.h" |
| #include "src/ast/type/i32_type.h" |
| #include "src/ast/type/vector_type.h" |
| #include "src/ast/type/void_type.h" |
| #include "src/ast/variable.h" |
| #include "src/type_determiner.h" |
| #include "src/writer/msl/generator_impl.h" |
| #include "src/writer/msl/test_helper.h" |
| |
| namespace tint { |
| namespace writer { |
| namespace msl { |
| namespace { |
| |
| using MslGeneratorImplTest = TestHelper; |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Input) { |
| // [[location 0]] var<in> foo : f32; |
| // [[location 1]] var<in> bar : i32; |
| // |
| // struct vtx_main_in { |
| // float foo [[attribute(0)]]; |
| // int bar [[attribute(1)]]; |
| // }; |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kInput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kInput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "vtx_main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kVertex), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct vtx_main_in { |
| float foo [[attribute(0)]]; |
| int bar [[attribute(1)]]; |
| }; |
| |
| )"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Vertex_Output) { |
| // [[location 0]] var<out> foo : f32; |
| // [[location 1]] var<out> bar : i32; |
| // |
| // struct vtx_main_out { |
| // float foo [[user(locn0)]]; |
| // int bar [[user(locn1)]]; |
| // }; |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kOutput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kOutput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "vtx_main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kVertex), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct vtx_main_out { |
| float foo [[user(locn0)]]; |
| int bar [[user(locn1)]]; |
| }; |
| |
| )"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Input) { |
| // [[location 0]] var<in> foo : f32; |
| // [[location 1]] var<in> bar : i32; |
| // |
| // struct frag_main_in { |
| // float foo [[user(locn0)]]; |
| // int bar [[user(locn1)]]; |
| // }; |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kInput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kInput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kFragment), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct main_in { |
| float foo [[user(locn0)]]; |
| int bar [[user(locn1)]]; |
| }; |
| |
| )"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Fragment_Output) { |
| // [[location 0]] var<out> foo : f32; |
| // [[location 1]] var<out> bar : i32; |
| // |
| // struct frag_main_out { |
| // float foo [[color(0)]]; |
| // int bar [[color(1)]]; |
| // }; |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kOutput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kOutput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kFragment), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct main_out { |
| float foo [[color(0)]]; |
| int bar [[color(1)]]; |
| }; |
| |
| )"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Input) { |
| // [[location 0]] var<in> foo : f32; |
| // [[location 1]] var<in> bar : i32; |
| // |
| // -> Error, not allowed |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kInput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kInput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kCompute), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_FALSE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Compute_Output) { |
| // [[location 0]] var<out> foo : f32; |
| // [[location 1]] var<out> bar : i32; |
| // |
| // -> Error not allowed |
| |
| ast::type::F32 f32; |
| ast::type::I32 i32; |
| |
| auto* foo_var = |
| create<ast::Variable>(Source{}, // source |
| "foo", // name |
| ast::StorageClass::kOutput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 0), |
| }); |
| |
| auto* bar_var = |
| create<ast::Variable>(Source{}, // source |
| "bar", // name |
| ast::StorageClass::kOutput, // storage_class |
| &i32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::LocationDecoration>(Source{}, 1), |
| }); |
| |
| td.RegisterVariableForTesting(foo_var); |
| td.RegisterVariableForTesting(bar_var); |
| |
| mod->AddGlobalVariable(foo_var); |
| mod->AddGlobalVariable(bar_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("foo"), "foo")), |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar"), |
| create<ast::IdentifierExpression>(Source{}, |
| mod->RegisterSymbol("bar"), "bar")), |
| }; |
| auto* func = Func( |
| "main", ast::VariableList{}, &f32, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kCompute), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_FALSE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.error(), R"(invalid location variable for pipeline stage)"); |
| } |
| |
| TEST_F(MslGeneratorImplTest, Emit_Function_EntryPointData_Builtins) { |
| // Output builtins go in the output struct, input builtins will be passed |
| // as input parameters to the entry point function. |
| |
| // [[builtin frag_coord]] var<in> coord : vec4<f32>; |
| // [[builtin frag_depth]] var<out> depth : f32; |
| // |
| // struct main_out { |
| // float depth [[depth(any)]]; |
| // }; |
| |
| ast::type::F32 f32; |
| ast::type::Void void_type; |
| ast::type::Vector vec4(&f32, 4); |
| |
| auto* coord_var = create<ast::Variable>( |
| Source{}, // source |
| "coord", // name |
| ast::StorageClass::kInput, // storage_class |
| &vec4, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::BuiltinDecoration>(Source{}, ast::Builtin::kFragCoord), |
| }); |
| |
| auto* depth_var = create<ast::Variable>( |
| Source{}, // source |
| "depth", // name |
| ast::StorageClass::kOutput, // storage_class |
| &f32, // type |
| false, // is_const |
| nullptr, // constructor |
| ast::VariableDecorationList{ |
| // decorations |
| create<ast::BuiltinDecoration>(Source{}, ast::Builtin::kFragDepth), |
| }); |
| |
| td.RegisterVariableForTesting(coord_var); |
| td.RegisterVariableForTesting(depth_var); |
| |
| mod->AddGlobalVariable(coord_var); |
| mod->AddGlobalVariable(depth_var); |
| |
| auto body = ast::StatementList{ |
| create<ast::AssignmentStatement>( |
| Source{}, |
| create<ast::IdentifierExpression>( |
| Source{}, mod->RegisterSymbol("depth"), "depth"), |
| create<ast::MemberAccessorExpression>( |
| Source{}, |
| create<ast::IdentifierExpression>( |
| Source{}, mod->RegisterSymbol("coord"), "coord"), |
| create<ast::IdentifierExpression>( |
| Source{}, mod->RegisterSymbol("x"), "x"))), |
| }; |
| auto* func = Func( |
| "main", ast::VariableList{}, &void_type, body, |
| ast::FunctionDecorationList{ |
| create<ast::StageDecoration>(Source{}, ast::PipelineStage::kFragment), |
| }); |
| |
| mod->AddFunction(func); |
| |
| ASSERT_TRUE(td.Determine()) << td.error(); |
| |
| ASSERT_TRUE(gen.EmitEntryPointData(func)) << gen.error(); |
| EXPECT_EQ(gen.result(), R"(struct main_out { |
| float depth [[depth(any)]]; |
| }; |
| |
| )"); |
| } |
| |
| } // namespace |
| } // namespace msl |
| } // namespace writer |
| } // namespace tint |