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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>
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
// Copyright 2020 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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#include "dawn_native/PersistentCache.h"
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#include "common/Assert.h"
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#include "dawn_native/Device.h"
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#include "dawn_platform/DawnPlatform.h"
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namespace dawn_native {
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PersistentCache::PersistentCache(DeviceBase* device)
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: mDevice(device), mCache(GetPlatformCache()) {
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}
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ScopedCachedBlob PersistentCache::LoadData(const PersistentCacheKey& key) {
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ScopedCachedBlob blob = {};
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if (mCache == nullptr) {
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return blob;
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}
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std::lock_guard<std::mutex> lock(mMutex);
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blob.bufferSize = mCache->LoadData(reinterpret_cast<WGPUDevice>(mDevice), key.data(),
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key.size(), nullptr, 0);
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if (blob.bufferSize > 0) {
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blob.buffer.reset(new uint8_t[blob.bufferSize]);
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const size_t bufferSize =
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mCache->LoadData(reinterpret_cast<WGPUDevice>(mDevice), key.data(), key.size(),
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blob.buffer.get(), blob.bufferSize);
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ASSERT(bufferSize == blob.bufferSize);
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return blob;
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}
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return blob;
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}
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void PersistentCache::StoreData(const PersistentCacheKey& key, const void* value, size_t size) {
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if (mCache == nullptr) {
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return;
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}
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ASSERT(value != nullptr);
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ASSERT(size > 0);
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std::lock_guard<std::mutex> lock(mMutex);
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mCache->StoreData(reinterpret_cast<WGPUDevice>(mDevice), key.data(), key.size(), value,
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size);
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}
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dawn_platform::CachingInterface* PersistentCache::GetPlatformCache() {
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// TODO(dawn:549): Create a fingerprint of concatenated version strings (ex. Tint commit
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// hash, Dawn commit hash). This will be used by the client so it may know when to discard
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// previously cached Dawn objects should this fingerprint change.
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dawn_platform::Platform* platform = mDevice->GetPlatform();
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if (platform != nullptr) {
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return platform->GetCachingInterface(/*fingerprint*/ nullptr, /*fingerprintSize*/ 0);
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}
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return nullptr;
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}
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} // namespace dawn_native
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