| // 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 "src/transform/first_index_offset.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "src/transform/test_helper.h" |
| |
| namespace tint { |
| namespace transform { |
| namespace { |
| |
| using FirstIndexOffsetTest = TransformTest; |
| |
| TEST_F(FirstIndexOffsetTest, Error_AlreadyTransformed) { |
| auto* src = R"( |
| [[builtin(vertex_index)]] var<in> vert_idx : u32; |
| |
| fn test() -> u32 { |
| return vert_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto* expect = R"(manager().Run() errored: |
| error: First index offset transform has already been applied.)"; |
| |
| std::vector<std::unique_ptr<transform::Transform>> transforms; |
| transforms.emplace_back(std::make_unique<FirstIndexOffset>(0, 0)); |
| transforms.emplace_back(std::make_unique<FirstIndexOffset>(1, 1)); |
| |
| auto got = Transform(src, std::move(transforms)); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(FirstIndexOffsetTest, EmptyModule) { |
| auto* src = ""; |
| auto* expect = ""; |
| |
| auto got = Transform<FirstIndexOffset>(src, 0, 0); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(FirstIndexOffsetTest, BasicModuleVertexIndex) { |
| auto* src = R"( |
| [[builtin(vertex_index)]] var<in> vert_idx : u32; |
| |
| fn test() -> u32 { |
| return vert_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[block]] |
| struct TintFirstIndexOffsetData { |
| [[offset(0)]] |
| tint_first_vertex_index : u32; |
| }; |
| |
| [[builtin(vertex_index)]] var<in> tint_first_index_offset_vert_idx : u32; |
| [[binding(1), group(2)]] var<uniform> tint_first_index_data : TintFirstIndexOffsetData; |
| |
| fn test() -> u32 { |
| const vert_idx : u32 = (tint_first_index_offset_vert_idx + tint_first_index_data.tint_first_vertex_index); |
| return vert_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto got = Transform<FirstIndexOffset>(src, 1, 2); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(FirstIndexOffsetTest, BasicModuleInstanceIndex) { |
| auto* src = R"( |
| [[builtin(instance_index)]] var<in> inst_idx : u32; |
| |
| fn test() -> u32 { |
| return inst_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[block]] |
| struct TintFirstIndexOffsetData { |
| [[offset(0)]] |
| tint_first_instance_index : u32; |
| }; |
| |
| [[builtin(instance_index)]] var<in> tint_first_index_offset_inst_idx : u32; |
| [[binding(1), group(7)]] var<uniform> tint_first_index_data : TintFirstIndexOffsetData; |
| |
| fn test() -> u32 { |
| const inst_idx : u32 = (tint_first_index_offset_inst_idx + tint_first_index_data.tint_first_instance_index); |
| return inst_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto got = Transform<FirstIndexOffset>(src, 1, 7); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(FirstIndexOffsetTest, BasicModuleBothIndex) { |
| auto* src = R"( |
| [[builtin(instance_index)]] var<in> instance_idx : u32; |
| [[builtin(vertex_index)]] var<in> vert_idx : u32; |
| |
| fn test() -> u32 { |
| return instance_idx + vert_idx; |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[block]] |
| struct TintFirstIndexOffsetData { |
| [[offset(0)]] |
| tint_first_vertex_index : u32; |
| [[offset(4)]] |
| tint_first_instance_index : u32; |
| }; |
| |
| [[builtin(instance_index)]] var<in> tint_first_index_offset_instance_idx : u32; |
| [[builtin(vertex_index)]] var<in> tint_first_index_offset_vert_idx : u32; |
| [[binding(1), group(2)]] var<uniform> tint_first_index_data : TintFirstIndexOffsetData; |
| |
| fn test() -> u32 { |
| const instance_idx : u32 = (tint_first_index_offset_instance_idx + tint_first_index_data.tint_first_instance_index); |
| const vert_idx : u32 = (tint_first_index_offset_vert_idx + tint_first_index_data.tint_first_vertex_index); |
| return (instance_idx + vert_idx); |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| test(); |
| } |
| )"; |
| |
| auto got = Transform<FirstIndexOffset>(src, 1, 2); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(FirstIndexOffsetTest, NestedCalls) { |
| auto* src = R"( |
| [[builtin(vertex_index)]] var<in> vert_idx : u32; |
| |
| fn func1() -> u32 { |
| return vert_idx; |
| } |
| |
| fn func2() -> u32 { |
| return func1(); |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| func2(); |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[block]] |
| struct TintFirstIndexOffsetData { |
| [[offset(0)]] |
| tint_first_vertex_index : u32; |
| }; |
| |
| [[builtin(vertex_index)]] var<in> tint_first_index_offset_vert_idx : u32; |
| [[binding(1), group(2)]] var<uniform> tint_first_index_data : TintFirstIndexOffsetData; |
| |
| fn func1() -> u32 { |
| const vert_idx : u32 = (tint_first_index_offset_vert_idx + tint_first_index_data.tint_first_vertex_index); |
| return vert_idx; |
| } |
| |
| fn func2() -> u32 { |
| return func1(); |
| } |
| |
| [[stage(vertex)]] |
| fn entry() -> void { |
| func2(); |
| } |
| )"; |
| |
| auto got = Transform<FirstIndexOffset>(src, 1, 2); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| } // namespace |
| } // namespace transform |
| } // namespace tint |