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