| // Copyright 2025 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "gmock/gmock.h" |
| #include "src/tint/lang/wgsl/resolver/resolver.h" |
| #include "src/tint/lang/wgsl/resolver/resolver_helper_test.h" |
| |
| namespace tint::resolver { |
| |
| using namespace tint::core::fluent_types; // NOLINT |
| using namespace tint::core::number_suffixes; // NOLINT |
| |
| namespace { |
| |
| using ResolverBarycentricCoordExtensionTest = ResolverTest; |
| |
| TEST_F(ResolverBarycentricCoordExtensionTest, UseBarycentricCoordWithoutExtensionError) { |
| Structure("Inputs", Vector{ |
| Member("a", ty.vec3<f32>(), |
| Vector{Builtin(core::BuiltinValue::kBarycentricCoord)}), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ( |
| r()->error(), |
| R"(error: use of '@builtin(barycentric_coord)' requires enabling extension 'chromium_experimental_barycentric_coord')"); |
| } |
| |
| TEST_F(ResolverBarycentricCoordExtensionTest, UseBarycentricCoordWithExtension) { |
| Enable(wgsl::Extension::kChromiumExperimentalBarycentricCoord); |
| Structure("Inputs", Vector{ |
| Member("a", ty.vec3<f32>(), |
| Vector{Builtin(core::BuiltinValue::kBarycentricCoord)}), |
| }); |
| |
| EXPECT_TRUE(r()->Resolve()) << r()->error(); |
| } |
| |
| TEST_F(ResolverBarycentricCoordExtensionTest, BarycentricCoordVec3I32Error) { |
| Enable(wgsl::Extension::kChromiumExperimentalBarycentricCoord); |
| Structure("Inputs", Vector{ |
| Member("a", ty.vec3<i32>(), |
| Vector{Builtin(core::BuiltinValue::kBarycentricCoord)}), |
| }); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "error: store type of '@builtin(barycentric_coord)' must be 'vec3<f32>'"); |
| } |
| |
| TEST_F(ResolverBarycentricCoordExtensionTest, BarycentricCoordVertexShader) { |
| Enable(wgsl::Extension::kChromiumExperimentalBarycentricCoord); |
| Func( |
| "main", |
| Vector{Param("pi", ty.vec3<f32>(), Vector{Builtin(core::BuiltinValue::kBarycentricCoord)})}, |
| ty.void_(), Empty, Vector{Stage(ast::PipelineStage::kVertex)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "error: '@builtin(barycentric_coord)' cannot be used for vertex shader input"); |
| } |
| |
| TEST_F(ResolverBarycentricCoordExtensionTest, BarycentricCoordFragmentShaderOutput) { |
| Enable(wgsl::Extension::kChromiumExperimentalBarycentricCoord); |
| |
| Func("main", tint::Empty, ty.vec3<f32>(), |
| Vector{ |
| Return(Call<vec3<f32>>()), |
| }, |
| Vector{Stage(ast::PipelineStage::kFragment)}, |
| Vector{Builtin(Source{{1, 2}}, core::BuiltinValue::kBarycentricCoord)}); |
| |
| EXPECT_FALSE(r()->Resolve()); |
| EXPECT_EQ(r()->error(), |
| "1:2 error: '@builtin(barycentric_coord)' cannot be used for fragment shader output"); |
| } |
| |
| } // namespace |
| } // namespace tint::resolver |