tree edf8bee465c2f5e8463fc4f529568b8ad0073972
parent 6f1dc51bd9a9217b7761bce02e807f73df80be5d
author Shahbaz Youssefi <syoussefi@chromium.org> 1539268484 -0400
committer Commit Bot <commit-bot@chromium.org> 1539801279 +0000

Vulkan: Implement glFlush

A semaphore pool is implemented to allow dynamic allocation of
semaphores as needed when breaking up a frame with flushes.  The pool is
used both for acquiring the next image and for chaining mid-frame
submissions.

RendererVk::flush() is changed so that instead of taking the wait/signal
semaphores as parameters, it would use the last known signaled semaphore
as wait semaphore and allocates a semaphore for signaling.  It would
additionally wait for any extra semaphore provided externally (i.e. the
surface's image acquire semaphore).

Bug: angleproject:2504
Change-Id: Iecd2d5535230c48b26a6b7d078710af8730121da
Reviewed-on: https://chromium-review.googlesource.com/c/1276805
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>