| // Copyright 2020 The Dawn 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 <memory> |
| #include <unordered_map> |
| #include <utility> |
| |
| #include "dawn/tests/DawnTest.h" |
| #include "dawn/tests/mocks/platform/CachingInterfaceMock.h" |
| #include "dawn/utils/ComboRenderPipelineDescriptor.h" |
| #include "dawn/utils/WGPUHelpers.h" |
| |
| namespace { |
| using ::testing::NiceMock; |
| } // namespace |
| |
| class D3D12CachingTests : public DawnTest { |
| protected: |
| void SetUp() override { |
| DawnTest::SetUp(); |
| // TODO(dawn:1341) Re-enable tests once shader caching is re-implemented. |
| DAWN_SKIP_TEST_IF_BASE(true, "suppressed", "TODO(dawn:1341)"); |
| } |
| |
| std::unique_ptr<dawn::platform::Platform> CreateTestPlatform() override { |
| return std::make_unique<DawnCachingMockPlatform>(&mMockCache); |
| } |
| |
| NiceMock<CachingInterfaceMock> mMockCache; |
| }; |
| |
| // Test that duplicate WGSL still works (and re-compiles HLSL) when the cache is not enabled. |
| TEST_P(D3D12CachingTests, SameShaderNoCache) { |
| mMockCache.Disable(); |
| |
| wgpu::ShaderModule module = utils::CreateShaderModule(device, R"( |
| @vertex fn vertex_main() -> @builtin(position) vec4f { |
| return vec4f(0.0, 0.0, 0.0, 1.0); |
| } |
| |
| @fragment fn fragment_main() -> @location(0) vec4f { |
| return vec4f(1.0, 0.0, 0.0, 1.0); |
| } |
| )"); |
| |
| // Store the WGSL shader into the cache. |
| { |
| utils::ComboRenderPipelineDescriptor desc; |
| desc.vertex.module = module; |
| desc.vertex.entryPoint = "vertex_main"; |
| desc.cFragment.module = module; |
| desc.cFragment.entryPoint = "fragment_main"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateRenderPipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 0u); |
| |
| // Load the same WGSL shader from the cache. |
| { |
| utils::ComboRenderPipelineDescriptor desc; |
| desc.vertex.module = module; |
| desc.vertex.entryPoint = "vertex_main"; |
| desc.cFragment.module = module; |
| desc.cFragment.entryPoint = "fragment_main"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateRenderPipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 0u); |
| } |
| |
| // Test creating a pipeline from two entrypoints in multiple stages will cache the correct number |
| // of HLSL shaders. WGSL shader should result into caching 2 HLSL shaders (stage x |
| // entrypoints) |
| TEST_P(D3D12CachingTests, ReuseShaderWithMultipleEntryPointsPerStage) { |
| wgpu::ShaderModule module = utils::CreateShaderModule(device, R"( |
| @vertex fn vertex_main() -> @builtin(position) vec4f { |
| return vec4f(0.0, 0.0, 0.0, 1.0); |
| } |
| |
| @fragment fn fragment_main() -> @location(0) vec4f { |
| return vec4f(1.0, 0.0, 0.0, 1.0); |
| } |
| )"); |
| |
| // Store the WGSL shader into the cache. |
| { |
| utils::ComboRenderPipelineDescriptor desc; |
| desc.vertex.module = module; |
| desc.vertex.entryPoint = "vertex_main"; |
| desc.cFragment.module = module; |
| desc.cFragment.entryPoint = "fragment_main"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateRenderPipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 2u); |
| |
| // Load the same WGSL shader from the cache. |
| { |
| utils::ComboRenderPipelineDescriptor desc; |
| desc.vertex.module = module; |
| desc.vertex.entryPoint = "vertex_main"; |
| desc.cFragment.module = module; |
| desc.cFragment.entryPoint = "fragment_main"; |
| EXPECT_CACHE_HIT(mMockCache, 2u, device.CreateRenderPipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 2u); |
| |
| // Modify the WGSL shader functions and make sure it doesn't hit. |
| wgpu::ShaderModule newModule = utils::CreateShaderModule(device, R"( |
| @vertex fn vertex_main() -> @builtin(position) vec4f { |
| return vec4f(1.0, 1.0, 1.0, 1.0); |
| } |
| |
| @fragment fn fragment_main() -> @location(0) vec4f { |
| return vec4f(1.0, 1.0, 1.0, 1.0); |
| } |
| )"); |
| |
| { |
| utils::ComboRenderPipelineDescriptor desc; |
| desc.vertex.module = newModule; |
| desc.vertex.entryPoint = "vertex_main"; |
| desc.cFragment.module = newModule; |
| desc.cFragment.entryPoint = "fragment_main"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateRenderPipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 4u); |
| } |
| |
| // Test creating a WGSL shader with two entrypoints in the same stage will cache the correct number |
| // of HLSL shaders. WGSL shader should result into caching 1 HLSL shader (stage x entrypoints) |
| TEST_P(D3D12CachingTests, ReuseShaderWithMultipleEntryPoints) { |
| wgpu::ShaderModule module = utils::CreateShaderModule(device, R"( |
| struct Data { |
| data : u32 |
| } |
| @binding(0) @group(0) var<storage, read_write> data : Data; |
| |
| @compute @workgroup_size(1) fn write1() { |
| data.data = 1u; |
| } |
| |
| @compute @workgroup_size(1) fn write42() { |
| data.data = 42u; |
| } |
| )"); |
| |
| // Store the WGSL shader into the cache. |
| { |
| wgpu::ComputePipelineDescriptor desc; |
| desc.compute.module = module; |
| desc.compute.entryPoint = "write1"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateComputePipeline(&desc)); |
| |
| desc.compute.module = module; |
| desc.compute.entryPoint = "write42"; |
| EXPECT_CACHE_HIT(mMockCache, 0u, device.CreateComputePipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 2u); |
| |
| // Load the same WGSL shader from the cache. |
| { |
| wgpu::ComputePipelineDescriptor desc; |
| desc.compute.module = module; |
| desc.compute.entryPoint = "write1"; |
| EXPECT_CACHE_HIT(mMockCache, 1u, device.CreateComputePipeline(&desc)); |
| |
| desc.compute.module = module; |
| desc.compute.entryPoint = "write42"; |
| EXPECT_CACHE_HIT(mMockCache, 1u, device.CreateComputePipeline(&desc)); |
| } |
| EXPECT_EQ(mMockCache.GetNumEntries(), 2u); |
| } |
| |
| DAWN_INSTANTIATE_TEST(D3D12CachingTests, D3D12Backend()); |