55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use crate::prelude::*;
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use crate::vk;
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use crate::RawPtr;
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use crate::{Entry, Instance};
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use std::ffi::CStr;
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use std::mem;
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/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/VK_EXT_headless_surface.html>
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#[derive(Clone)]
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pub struct HeadlessSurface {
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handle: vk::Instance,
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fp: vk::ExtHeadlessSurfaceFn,
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}
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impl HeadlessSurface {
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pub fn new(entry: &Entry, instance: &Instance) -> Self {
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let handle = instance.handle();
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let fp = vk::ExtHeadlessSurfaceFn::load(|name| unsafe {
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mem::transmute(entry.get_instance_proc_addr(handle, name.as_ptr()))
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});
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Self { handle, fp }
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}
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/// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkCreateHeadlessSurfaceEXT.html>
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#[inline]
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pub unsafe fn create_headless_surface(
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&self,
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create_info: &vk::HeadlessSurfaceCreateInfoEXT,
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allocation_callbacks: Option<&vk::AllocationCallbacks>,
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) -> VkResult<vk::SurfaceKHR> {
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let mut surface = mem::zeroed();
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(self.fp.create_headless_surface_ext)(
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self.handle,
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create_info,
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allocation_callbacks.as_raw_ptr(),
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&mut surface,
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)
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.result_with_success(surface)
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}
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#[inline]
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pub const fn name() -> &'static CStr {
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vk::ExtHeadlessSurfaceFn::name()
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}
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#[inline]
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pub fn fp(&self) -> &vk::ExtHeadlessSurfaceFn {
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&self.fp
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}
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#[inline]
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pub fn instance(&self) -> vk::Instance {
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self.handle
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}
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}
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