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22d8665300
D3D12 supports signalling a fence to a lower value, while Vulkan timeline semaphores do not. On the GPU side this is handled by simply submitting the signal anyway, if a test for this passes on device creation, because working around this is impractical. For CPU signals the Vulkan semaphore is replaced with a new one at the lower value only if no waits and/or signals are pending on the GPU. Otherwise, a fixme is emitted. Partly based on a vkd3d-proton patch by Hans-Kristian Arntzen (not including the handling of lower fence values). The old implementation is used if KHR_timeline_semaphore is not available or GPU signals do not work for a lower value. Signed-off-by: Conor McCarthy <cmccarthy@codeweavers.com> Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>