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>
This patch implements the default implementation of WaitableEvent
(AsyncWaitableEvent) with std::condition_variable instead of
std::future as std::future will always block its destructor until
the async function returns, which makes us unable to clean up all
the execution environment of the async task inside the async
function.
This patch also implements WorkerThreadTaskManager to manage all
the async tasks (inherited from WorkerThreadTask) in the future,
for example all the Create*PipelineAsync() tasks.
This patch also updates the related dawn_unittest WorkerThreadTest.
Basic.
BUG=dawn:529
TEST=dawn_unittests
Change-Id: Ie789ba788789e91128ffc416e7e768923828a367
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/51740
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Austin Eng
Jiawei Shao