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use crate::prelude::*;
use crate::vk;
use crate::RawPtr;
use crate::{Device, Instance};
use std::ffi::CStr;
use std::mem;
#[derive(Clone)]
pub struct DisplaySwapchain {
handle: vk::Device,
fp: vk::KhrDisplaySwapchainFn,
}
impl DisplaySwapchain {
pub fn new(instance: &Instance, device: &Device) -> Self {
let handle = device.handle();
let fp = vk::KhrDisplaySwapchainFn::load(|name| unsafe {
mem::transmute(instance.get_device_proc_addr(handle, name.as_ptr()))
});
Self { handle, fp }
}
/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCreateSharedSwapchainsKHR.html>
#[inline]
pub unsafe fn create_shared_swapchains(
&self,
create_infos: &[vk::SwapchainCreateInfoKHR],
allocation_callbacks: Option<&vk::AllocationCallbacks>,
) -> VkResult<Vec<vk::SwapchainKHR>> {
let mut swapchains = Vec::with_capacity(create_infos.len());
(self.fp.create_shared_swapchains_khr)(
self.handle,
create_infos.len() as u32,
create_infos.as_ptr(),
allocation_callbacks.as_raw_ptr(),
swapchains.as_mut_ptr(),
)
.result()?;
swapchains.set_len(create_infos.len());
Ok(swapchains)
}
#[inline]
pub const fn name() -> &'static CStr {
vk::KhrDisplaySwapchainFn::name()
}
#[inline]
pub fn fp(&self) -> &vk::KhrDisplaySwapchainFn {
&self.fp
}
#[inline]
pub fn device(&self) -> vk::Device {
self.handle
}
}
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