kc3-lang/angle

2023-01-31T09:56:16

Vulkan: Add FixedQueue class for CommandProcessor::mTask This CL adds FixedQueue class. It uses std::array for the storage. It supports concurrent push and pop from two different threads. If producer want to push from two different threads, then proper mutex must be used to ensure the access is serialized. Similarly if consumers want to pop from two different threads, a mutex must be used to ensure serialized access. Caller must ensure queue is not empty before pop and not full before push. This CL switches CommandProcessor::mTasks to FixedQueue and moved mSubmissionMutex to protect the serialized submission (i.e, pop from queue). mWorkerMutex is still used to protect push operation. With this change, we now supports continued enqueue to mTask of CommandProcessor while other context is doing CommandProcessor::waitForResourceUseToBeSubmitted(). Bug: b/267348918 Change-Id: I6c5fe288436daa7e0f3bcbbcd16c5d2e5e27f2e9 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4210653 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>