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5e1ca53269
This patch implements the asynchronous path of CreateComputePipelineAsync on D3D12 backend with the basic framework of the dawn_unittest AsyncTaskTest.Basic. 1. Call the constructor of dawn_native::d3d12::ComputePipeline in the main thread. 2. Execute dawn_native::ComputePipelineBase::Initialize() (a virtual function) asynchronously. 3. Ensure every operation in dawn_native::d3d12::ComputePipeline::Initialize() is thread-safe (PersistentCache). 4. Save all the return values (pipeline object or error message, userdata, etc) in a CreateComputePipelineAsyncWaitableCallbackTask object and insert this callback task into CallbackTaskManager. 5. In Callback.Finish(): - Insert the pipeline object into the pipeline cache if necessary - Call WGPUCreateComputePipelineAsyncCallback Note that as we always handle the front-end pipeline cache in the main thread, we don't need to make it thread-safe right now. BUG=dawn:529 TEST=dawn_end2end_tests Change-Id: I7eba2ce550b32439a94b2a4d1aa7f1b3383aa514 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/47900 Commit-Queue: Jiawei Shao <jiawei.shao@intel.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
// Copyright 2021 The Dawn 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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//
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// AsyncTaskTests:
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// Simple tests for dawn_native::AsyncTask and dawn_native::AsnycTaskManager.
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#include <gtest/gtest.h>
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#include <memory>
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#include <mutex>
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#include "common/NonCopyable.h"
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#include "dawn_native/AsyncTask.h"
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#include "dawn_platform/DawnPlatform.h"
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namespace {
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struct SimpleTaskResult {
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uint32_t id;
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};
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// A thread-safe queue that stores the task results.
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class ConcurrentTaskResultQueue : public NonCopyable {
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public:
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void AddResult(std::unique_ptr<SimpleTaskResult> result) {
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std::lock_guard<std::mutex> lock(mMutex);
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mTaskResults.push_back(std::move(result));
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}
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std::vector<std::unique_ptr<SimpleTaskResult>> GetAllResults() {
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std::vector<std::unique_ptr<SimpleTaskResult>> outputResults;
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{
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std::lock_guard<std::mutex> lock(mMutex);
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outputResults.swap(mTaskResults);
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}
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return outputResults;
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}
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private:
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std::mutex mMutex;
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std::vector<std::unique_ptr<SimpleTaskResult>> mTaskResults;
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};
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void DoTask(ConcurrentTaskResultQueue* resultQueue, uint32_t id) {
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std::unique_ptr<SimpleTaskResult> result = std::make_unique<SimpleTaskResult>();
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result->id = id;
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resultQueue->AddResult(std::move(result));
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}
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} // anonymous namespace
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class AsyncTaskTest : public testing::Test {};
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// Emulate the basic usage of worker thread pool in Create*PipelineAsync().
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TEST_F(AsyncTaskTest, Basic) {
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dawn_platform::Platform platform;
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std::unique_ptr<dawn_platform::WorkerTaskPool> pool = platform.CreateWorkerTaskPool();
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dawn_native::AsyncTaskManager taskManager(pool.get());
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ConcurrentTaskResultQueue taskResultQueue;
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constexpr size_t kTaskCount = 4u;
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std::set<uint32_t> idset;
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for (uint32_t i = 0; i < kTaskCount; ++i) {
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dawn_native::AsyncTask asyncTask([&taskResultQueue, i] { DoTask(&taskResultQueue, i); });
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taskManager.PostTask(std::move(asyncTask));
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idset.insert(i);
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}
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taskManager.WaitAllPendingTasks();
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std::vector<std::unique_ptr<SimpleTaskResult>> results = taskResultQueue.GetAllResults();
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ASSERT_EQ(kTaskCount, results.size());
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for (std::unique_ptr<SimpleTaskResult>& result : results) {
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idset.erase(result->id);
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}
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ASSERT_TRUE(idset.empty());
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}
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