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use super::{AccessCheckError, FlushError, GpuFuture};
use crate::{
buffer::sys::UnsafeBuffer,
command_buffer::submit::SubmitAnyBuilder,
device::{Device, DeviceOwned, Queue},
image::{sys::UnsafeImage, ImageLayout},
sync::{AccessFlags, PipelineStages},
DeviceSize,
};
use std::{ops::Range, sync::Arc};
#[inline]
pub fn now(device: Arc<Device>) -> NowFuture {
NowFuture { device }
}
pub struct NowFuture {
device: Arc<Device>,
}
unsafe impl GpuFuture for NowFuture {
#[inline]
fn cleanup_finished(&mut self) {}
#[inline]
unsafe fn build_submission(&self) -> Result<SubmitAnyBuilder, FlushError> {
Ok(SubmitAnyBuilder::Empty)
}
#[inline]
fn flush(&self) -> Result<(), FlushError> {
Ok(())
}
#[inline]
unsafe fn signal_finished(&self) {}
#[inline]
fn queue_change_allowed(&self) -> bool {
true
}
#[inline]
fn queue(&self) -> Option<Arc<Queue>> {
None
}
#[inline]
fn check_buffer_access(
&self,
_buffer: &UnsafeBuffer,
_range: Range<DeviceSize>,
_exclusive: bool,
_queue: &Queue,
) -> Result<Option<(PipelineStages, AccessFlags)>, AccessCheckError> {
Err(AccessCheckError::Unknown)
}
#[inline]
fn check_image_access(
&self,
_image: &UnsafeImage,
_range: Range<DeviceSize>,
_exclusive: bool,
_expected_layout: ImageLayout,
_queue: &Queue,
) -> Result<Option<(PipelineStages, AccessFlags)>, AccessCheckError> {
Err(AccessCheckError::Unknown)
}
}
unsafe impl DeviceOwned for NowFuture {
#[inline]
fn device(&self) -> &Arc<Device> {
&self.device
}
}