| // Copyright 2021 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/spirv.h" |
| |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "src/transform/test_helper.h" |
| |
| namespace tint { |
| namespace transform { |
| namespace { |
| |
| using SpirvTest = TransformTest; |
| |
| TEST_F(SpirvTest, HandleSampleMaskBuiltins_Basic) { |
| auto* src = R"( |
| [[builtin(sample_index)]] var<in> sample_index : u32; |
| |
| [[builtin(sample_mask_in)]] var<in> mask_in : u32; |
| |
| [[builtin(sample_mask_out)]] var<out> mask_out : u32; |
| |
| [[stage(fragment)]] |
| fn main() -> void { |
| mask_out = mask_in; |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[builtin(sample_index)]] var<in> sample_index : u32; |
| |
| [[builtin(sample_mask_in)]] var<in> mask_in : array<u32, 1>; |
| |
| [[builtin(sample_mask_out)]] var<out> mask_out : array<u32, 1>; |
| |
| [[stage(fragment)]] |
| fn main() -> void { |
| mask_out[0] = mask_in[0]; |
| } |
| )"; |
| |
| auto got = Transform<Spirv>(src); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| TEST_F(SpirvTest, HandleSampleMaskBuiltins_FunctionArg) { |
| auto* src = R"( |
| [[builtin(sample_mask_in)]] var<in> mask_in : u32; |
| |
| [[builtin(sample_mask_out)]] var<out> mask_out : u32; |
| |
| fn filter(mask: u32) -> u32 { |
| return (mask & 3u); |
| } |
| |
| fn set_mask(input : u32) -> void { |
| mask_out = input; |
| } |
| |
| [[stage(fragment)]] |
| fn main() -> void { |
| set_mask(filter(mask_in)); |
| } |
| )"; |
| |
| auto* expect = R"( |
| [[builtin(sample_mask_in)]] var<in> mask_in : array<u32, 1>; |
| |
| [[builtin(sample_mask_out)]] var<out> mask_out : array<u32, 1>; |
| |
| fn filter(mask : u32) -> u32 { |
| return (mask & 3u); |
| } |
| |
| fn set_mask(input : u32) -> void { |
| mask_out[0] = input; |
| } |
| |
| [[stage(fragment)]] |
| fn main() -> void { |
| set_mask(filter(mask_in[0])); |
| } |
| )"; |
| |
| auto got = Transform<Spirv>(src); |
| |
| EXPECT_EQ(expect, got); |
| } |
| |
| } // namespace |
| } // namespace transform |
| } // namespace tint |