Is there a way to get an estimated (or exact) timestamp when the submitted frame will be presented on screen?
I'm interested in WSI windowed presentation as well as fullscreen on Windows and Linux.
UPD: One of the possible ways on Windows is IDCompositionDevice::GetFrameStatistics (msdn), which is used for DirectComposition and DirectManipulation, but I'm not sure is it applicable to Vulkan WSI presentation.
VK_GOOGLE_display_timing extension exposes timings of past presents, and allows to supply timing hint for a subsequent present. But the extension is supported only on some Androids.
VK_EXT_display_control provides a VSync counter and an Fence signal when Vblank starts. But it only works with a VkDisplayKHR type swapchain. And it has only some small support on Linuxes.
The appropriate issue has been raised at Vulkan-Docs#370. Unfortunately, it is taking its time to be resolved.
I don't think you can get the exact presentation time (which would be tricky in any case, since monitors have some internal latency). I think you can get close though: The docs for vkAcquireNextImageKHR say you can pass a fence that gets signaled when the driver is done with the image, which should be close to the time it gets sent off to the display. If you're using VK_PRESENT_MODE_FIFO_KHR you can then use the refresh rate to work out when later images in the queue get presented.
