| use crate::prelude::*; |
| use crate::vk; |
| use crate::RawPtr; |
| use crate::{Device, Instance}; |
| use std::ffi::CStr; |
| use std::mem; |
| |
| #[derive(Clone)] |
| pub struct Swapchain { |
| handle: vk::Device, |
| swapchain_fn: vk::KhrSwapchainFn, |
| } |
| |
| impl Swapchain { |
| pub fn new(instance: &Instance, device: &Device) -> Self { |
| let swapchain_fn = vk::KhrSwapchainFn::load(|name| unsafe { |
| mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr())) |
| }); |
| Self { |
| handle: device.handle(), |
| swapchain_fn, |
| } |
| } |
| |
| pub fn name() -> &'static CStr { |
| vk::KhrSwapchainFn::name() |
| } |
| |
| #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkDestroySwapchainKHR.html>"] |
| pub unsafe fn destroy_swapchain( |
| &self, |
| swapchain: vk::SwapchainKHR, |
| allocation_callbacks: Option<&vk::AllocationCallbacks>, |
| ) { |
| self.swapchain_fn.destroy_swapchain_khr( |
| self.handle, |
| swapchain, |
| allocation_callbacks.as_raw_ptr(), |
| ); |
| } |
| |
| /// On success, returns the next image's index and whether the swapchain is suboptimal for the surface. |
| #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkAcquireNextImageKHR.html>"] |
| pub unsafe fn acquire_next_image( |
| &self, |
| swapchain: vk::SwapchainKHR, |
| timeout: u64, |
| semaphore: vk::Semaphore, |
| fence: vk::Fence, |
| ) -> VkResult<(u32, bool)> { |
| let mut index = 0; |
| let err_code = self.swapchain_fn.acquire_next_image_khr( |
| self.handle, |
| swapchain, |
| timeout, |
| semaphore, |
| fence, |
| &mut index, |
| ); |
| match err_code { |
| vk::Result::SUCCESS => Ok((index, false)), |
| vk::Result::SUBOPTIMAL_KHR => Ok((index, true)), |
| _ => Err(err_code), |
| } |
| } |
| |
| #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkCreateSwapchainKHR.html>"] |
| pub unsafe fn create_swapchain( |
| &self, |
| create_info: &vk::SwapchainCreateInfoKHR, |
| allocation_callbacks: Option<&vk::AllocationCallbacks>, |
| ) -> VkResult<vk::SwapchainKHR> { |
| let mut swapchain = mem::zeroed(); |
| self.swapchain_fn |
| .create_swapchain_khr( |
| self.handle, |
| create_info, |
| allocation_callbacks.as_raw_ptr(), |
| &mut swapchain, |
| ) |
| .result_with_success(swapchain) |
| } |
| |
| /// On success, returns whether the swapchain is suboptimal for the surface. |
| #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkQueuePresentKHR.html>"] |
| pub unsafe fn queue_present( |
| &self, |
| queue: vk::Queue, |
| create_info: &vk::PresentInfoKHR, |
| ) -> VkResult<bool> { |
| let err_code = self.swapchain_fn.queue_present_khr(queue, create_info); |
| match err_code { |
| vk::Result::SUCCESS => Ok(false), |
| vk::Result::SUBOPTIMAL_KHR => Ok(true), |
| _ => Err(err_code), |
| } |
| } |
| |
| #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetSwapchainImagesKHR.html>"] |
| pub unsafe fn get_swapchain_images( |
| &self, |
| swapchain: vk::SwapchainKHR, |
| ) -> VkResult<Vec<vk::Image>> { |
| read_into_uninitialized_vector(|count, data| { |
| self.swapchain_fn |
| .get_swapchain_images_khr(self.handle, swapchain, count, data) |
| }) |
| } |
| |
| pub fn fp(&self) -> &vk::KhrSwapchainFn { |
| &self.swapchain_fn |
| } |
| |
| pub fn device(&self) -> vk::Device { |
| self.handle |
| } |
| } |