| // Copyright 2022 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 <utility> |
| |
| #include "gtest/gtest.h" |
| #include "src/tint/program_builder.h" |
| #include "src/tint/writer/generate_external_texture_bindings.h" |
| |
| namespace tint::writer { |
| namespace { |
| |
| using namespace tint::number_suffixes; // NOLINT |
| |
| constexpr auto kUniform = ast::StorageClass::kUniform; |
| |
| class GenerateExternalTextureBindingsTest : public ::testing::Test {}; |
| |
| TEST_F(GenerateExternalTextureBindingsTest, None) { |
| ProgramBuilder b; |
| |
| tint::Program program(std::move(b)); |
| ASSERT_TRUE(program.IsValid()); |
| auto bindings = GenerateExternalTextureBindings(&program); |
| ASSERT_TRUE(bindings.empty()); |
| } |
| |
| TEST_F(GenerateExternalTextureBindingsTest, One) { |
| ProgramBuilder b; |
| b.GlobalVar("v0", b.ty.external_texture(), b.Group(0_a), b.Binding(0_a)); |
| |
| tint::Program program(std::move(b)); |
| ASSERT_TRUE(program.IsValid()); |
| auto bindings = GenerateExternalTextureBindings(&program); |
| ASSERT_EQ(bindings.size(), 1u); |
| |
| auto to = bindings[transform::BindingPoint{0, 0}]; |
| ASSERT_EQ(to.plane_1.group, 0u); |
| ASSERT_EQ(to.params.group, 0u); |
| ASSERT_EQ(to.plane_1.binding, 1u); |
| ASSERT_EQ(to.params.binding, 2u); |
| } |
| |
| TEST_F(GenerateExternalTextureBindingsTest, Two_SameGroup) { |
| ProgramBuilder b; |
| b.GlobalVar("v0", b.ty.external_texture(), b.Group(0_a), b.Binding(0_a)); |
| b.GlobalVar("v1", b.ty.external_texture(), b.Group(0_a), b.Binding(1_a)); |
| |
| tint::Program program(std::move(b)); |
| ASSERT_TRUE(program.IsValid()); |
| auto bindings = GenerateExternalTextureBindings(&program); |
| ASSERT_EQ(bindings.size(), 2u); |
| |
| auto to0 = bindings[transform::BindingPoint{0, 0}]; |
| ASSERT_EQ(to0.plane_1.group, 0u); |
| ASSERT_EQ(to0.params.group, 0u); |
| ASSERT_EQ(to0.plane_1.binding, 2u); |
| ASSERT_EQ(to0.params.binding, 3u); |
| |
| auto to1 = bindings[transform::BindingPoint{0, 1}]; |
| ASSERT_EQ(to1.plane_1.group, 0u); |
| ASSERT_EQ(to1.params.group, 0u); |
| ASSERT_EQ(to1.plane_1.binding, 4u); |
| ASSERT_EQ(to1.params.binding, 5u); |
| } |
| |
| TEST_F(GenerateExternalTextureBindingsTest, Two_DifferentGroup) { |
| ProgramBuilder b; |
| b.GlobalVar("v0", b.ty.external_texture(), b.Group(0_a), b.Binding(0_a)); |
| b.GlobalVar("v1", b.ty.external_texture(), b.Group(1_a), b.Binding(0_a)); |
| |
| tint::Program program(std::move(b)); |
| ASSERT_TRUE(program.IsValid()); |
| auto bindings = GenerateExternalTextureBindings(&program); |
| ASSERT_EQ(bindings.size(), 2u); |
| |
| auto to0 = bindings[transform::BindingPoint{0, 0}]; |
| ASSERT_EQ(to0.plane_1.group, 0u); |
| ASSERT_EQ(to0.params.group, 0u); |
| ASSERT_EQ(to0.plane_1.binding, 1u); |
| ASSERT_EQ(to0.params.binding, 2u); |
| |
| auto to1 = bindings[transform::BindingPoint{1, 0}]; |
| ASSERT_EQ(to1.plane_1.group, 1u); |
| ASSERT_EQ(to1.params.group, 1u); |
| ASSERT_EQ(to1.plane_1.binding, 1u); |
| ASSERT_EQ(to1.params.binding, 2u); |
| } |
| |
| TEST_F(GenerateExternalTextureBindingsTest, Two_WithOtherBindingsInSameGroup) { |
| ProgramBuilder b; |
| b.GlobalVar("v0", b.ty.i32(), b.Group(0_a), b.Binding(0_a), kUniform); |
| b.GlobalVar("v1", b.ty.external_texture(), b.Group(0_a), b.Binding(1_a)); |
| b.GlobalVar("v2", b.ty.i32(), b.Group(0_a), b.Binding(2_a), kUniform); |
| b.GlobalVar("v3", b.ty.external_texture(), b.Group(0_a), b.Binding(3_a)); |
| b.GlobalVar("v4", b.ty.i32(), b.Group(0_a), b.Binding(4_a), kUniform); |
| |
| tint::Program program(std::move(b)); |
| ASSERT_TRUE(program.IsValid()) << program.Diagnostics().str(); |
| auto bindings = GenerateExternalTextureBindings(&program); |
| ASSERT_EQ(bindings.size(), 2u); |
| |
| auto to0 = bindings[transform::BindingPoint{0, 1}]; |
| ASSERT_EQ(to0.plane_1.group, 0u); |
| ASSERT_EQ(to0.params.group, 0u); |
| ASSERT_EQ(to0.plane_1.binding, 5u); |
| ASSERT_EQ(to0.params.binding, 6u); |
| |
| auto to1 = bindings[transform::BindingPoint{0, 3}]; |
| ASSERT_EQ(to1.plane_1.group, 0u); |
| ASSERT_EQ(to1.params.group, 0u); |
| ASSERT_EQ(to1.plane_1.binding, 7u); |
| ASSERT_EQ(to1.params.binding, 8u); |
| } |
| |
| } // namespace |
| } // namespace tint::writer |