|
ac263582
|
2023-06-19T12:26:44
|
|
Vulkan: add workaround for VK_EXT_full_screen_exclusive on AMD
On outdated (but recent) AMD drivers, the Windows-only Vulkan extension
VK_EXT_full_screen_exclusive appeared to be implicitly enabled and set
to VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT mode. Even though
ANGLE did not enable or interact with this extension at all, the driver
was incorrectly returning VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT
error codes on various swapchain operations when the full screen window
focus was lost (i.e. alt-tab out and back in). Naturally, ANGLE was not
expecting these error codes and did not know how to handle them.
Depending on where the errors occurred, ANGLE might crash or retry
creating the swapchain repeatedly.
Treating the unexpected VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT
error code as VK_ERROR_OUT_OF_DATE_KHR/VK_SUBOPTIMAL_KHR was not
sufficient, because the driver would repeat the error on every swapchain
operation, apparently expecting the error to be handled by
a vkAcquireFullScreenExclusiveModeEXT call (even though that would make
no sense, since the extension was not enabled).
The incorrect driver behavior was reported to AMD and was fixed in
recent driver releases. The earliest driver I've tested and know to be
working is AMD's Adrenaline driver version 23.5.2
(VkPhysicalDeviceProperties calls this driverVersion 2.0.262/0x800106).
The last known bad version was 0x8000e9.
The simplest workaround on these older AMD graphics drivers is to
explicitly enable the extension, but set it to
VK_FULL_SCREEN_EXCLUSIVE_DISALLOWED_EXT mode. On newer drivers we do not
need to do anything with the extension and can ignore it.
Bug: angleproject:8215
Change-Id: I7c58d47a0350f4b0bc1a77f200c1e2f72fcde8d8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4627279
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
|
