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better single fences, support dummy submissions

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This commit is contained in:
Dzmitry Malyshau 2019-03-04 16:48:59 -05:00
parent 2c6886401d
commit 241416cf89
1 changed files with 38 additions and 13 deletions
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51
libportability-gfx/src/impls.rs
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@ -1094,6 +1094,23 @@ pub extern "C" fn gfxQueueSubmit(
};
unsafe { queue.submit(submission, fence); }
}
// sometimes, all you need is a fence...
if submits.is_empty() {
use std::iter::empty;
let submission = hal::queue::Submission {
command_buffers: empty(),
wait_semaphores: empty(),
signal_semaphores: empty(),
};
unsafe {
queue.submit::<VkCommandBuffer, _, VkSemaphore, _, _>(
submission,
fence.as_ref(),
)
};
}
VkResult::VK_SUCCESS
}
#[inline]
@ -1392,21 +1409,29 @@ pub extern "C" fn gfxWaitForFences(
waitAll: VkBool32,
timeout: u64,
) -> VkResult {
let fence_slice = unsafe {
slice::from_raw_parts(pFences, fenceCount as _)
};
let fences = fence_slice
.into_iter()
.map(|fence| &**fence);
let wait_for = match waitAll {
VK_FALSE => WaitFor::Any,
_ => WaitFor::All,
let result = match fenceCount {
0 => Ok(true),
1 => unsafe {
gpu.device.wait_for_fence(&**pFences, timeout)
},
_ => {
let fence_slice = unsafe {
slice::from_raw_parts(pFences, fenceCount as _)
};
let fences = fence_slice
.into_iter()
.map(|fence| &**fence);
let wait_for = match waitAll {
VK_FALSE => WaitFor::Any,
_ => WaitFor::All,
};
unsafe {
gpu.device.wait_for_fences(fences, wait_for, timeout)
}
}
};
match unsafe {
gpu.device.wait_for_fences(fences, wait_for, timeout as _)
} {
match result {
Ok(true) => VkResult::VK_SUCCESS,
Ok(false) => VkResult::VK_TIMEOUT,
Err(hal::device::OomOrDeviceLost::OutOfMemory(oom)) => map_oom(oom),