1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
#![allow(dead_code)]
use prelude::*;
use std::ffi::CStr;
use std::mem;
use version::{DeviceV1_0, InstanceV1_0};
use vk;
use RawPtr;
#[derive(Clone)]
pub struct DisplaySwapchain {
handle: vk::Device,
swapchain_fn: vk::KhrDisplaySwapchainFn,
}
impl DisplaySwapchain {
pub fn new<I: InstanceV1_0, D: DeviceV1_0>(
instance: &I,
device: &D,
) -> DisplaySwapchain {
let swapchain_fn = vk::KhrDisplaySwapchainFn::load(|name| unsafe {
mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr()))
});
DisplaySwapchain {
handle: device.handle(),
swapchain_fn: swapchain_fn,
}
}
pub fn name() -> &'static CStr {
CStr::from_bytes_with_nul(b"VK_KHR_display_swapchain\0").expect("Wrong extension string")
}
pub unsafe fn create_shared_swapchains_khr(
&self,
create_infos: &[vk::SwapchainCreateInfoKHR],
allocation_callbacks: Option<&vk::AllocationCallbacks>,
) -> VkResult<Vec<vk::SwapchainKHR>> {
let mut swapchains = Vec::with_capacity(create_infos.len());
let err_code = self.swapchain_fn.create_shared_swapchains_khr(
self.handle,
create_infos.len() as u32,
create_infos.as_ptr(),
allocation_callbacks.as_raw_ptr(),
swapchains.as_mut_ptr(),
);
swapchains.set_len(create_infos.len());
match err_code {
vk::Result::SUCCESS => Ok(swapchains),
_ => Err(err_code),
}
}
}