| // 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/external_texture_transform.h" |
| |
| #include "src/transform/test_helper.h" |
| |
| namespace tint { |
| namespace transform { |
| namespace { |
| |
| using ExternalTextureTransformTest = TransformTest; |
| |
| TEST_F(ExternalTextureTransformTest, SampleLevelSinglePlane) { |
| auto* src = R"( |
| @group(0) @binding(0) var s : sampler; |
| |
| @group(0) @binding(1) var t : texture_external; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| return textureSampleLevel(t, s, (coord.xy / vec2<f32>(4.0, 4.0))); |
| } |
| )"; |
| |
| auto* expect = R"( |
| @group(0) @binding(0) var s : sampler; |
| |
| @group(0) @binding(1) var t : texture_2d<f32>; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| return textureSampleLevel(t, s, (coord.xy / vec2<f32>(4.0, 4.0)), 0.0); |
| } |
| )"; |
| |
| auto got = Run<ExternalTextureTransform>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExternalTextureTransformTest, LoadSinglePlane) { |
| auto* src = R"( |
| @group(0) @binding(0) var t : texture_external; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| return textureLoad(t, vec2<i32>(1, 1)); |
| } |
| )"; |
| |
| auto* expect = R"( |
| @group(0) @binding(0) var t : texture_2d<f32>; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| return textureLoad(t, vec2<i32>(1, 1), 0); |
| } |
| )"; |
| |
| auto got = Run<ExternalTextureTransform>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| TEST_F(ExternalTextureTransformTest, DimensionsSinglePlane) { |
| auto* src = R"( |
| @group(0) @binding(0) var t : texture_external; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| var dim : vec2<i32>; |
| dim = textureDimensions(t); |
| return vec4<f32>(0.0, 0.0, 0.0, 0.0); |
| } |
| )"; |
| |
| auto* expect = R"( |
| @group(0) @binding(0) var t : texture_2d<f32>; |
| |
| @stage(fragment) |
| fn main(@builtin(position) coord : vec4<f32>) -> @location(0) vec4<f32> { |
| var dim : vec2<i32>; |
| dim = textureDimensions(t); |
| return vec4<f32>(0.0, 0.0, 0.0, 0.0); |
| } |
| )"; |
| |
| auto got = Run<ExternalTextureTransform>(src); |
| |
| EXPECT_EQ(expect, str(got)); |
| } |
| |
| } // namespace |
| } // namespace transform |
| } // namespace tint |