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use crate::prelude::*;
use crate::vk;
use crate::{Entry, Instance};
use std::ffi::CStr;
use std::mem;
use std::ptr;

#[derive(Clone)]
pub struct GetPhysicalDeviceProperties2 {
    fp: vk::KhrGetPhysicalDeviceProperties2Fn,
}

impl GetPhysicalDeviceProperties2 {
    pub fn new(entry: &Entry, instance: &Instance) -> Self {
        let fp = vk::KhrGetPhysicalDeviceProperties2Fn::load(|name| unsafe {
            mem::transmute(entry.get_instance_proc_addr(instance.handle(), name.as_ptr()))
        });
        Self { fp }
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceFeatures2KHR.html>
    #[inline]
    pub unsafe fn get_physical_device_features2(
        &self,
        physical_device: vk::PhysicalDevice,
        features: &mut vk::PhysicalDeviceFeatures2KHR,
    ) {
        (self.fp.get_physical_device_features2_khr)(physical_device, features);
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceFormatProperties2KHR.html>
    #[inline]
    pub unsafe fn get_physical_device_format_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        format: vk::Format,
        format_properties: &mut vk::FormatProperties2KHR,
    ) {
        (self.fp.get_physical_device_format_properties2_khr)(
            physical_device,
            format,
            format_properties,
        );
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceImageFormatProperties2KHR.html>
    #[inline]
    pub unsafe fn get_physical_device_image_format_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        image_format_info: &vk::PhysicalDeviceImageFormatInfo2KHR,
        image_format_properties: &mut vk::ImageFormatProperties2KHR,
    ) -> VkResult<()> {
        (self.fp.get_physical_device_image_format_properties2_khr)(
            physical_device,
            image_format_info,
            image_format_properties,
        )
        .result()
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceMemoryProperties2KHR.html>
    #[inline]
    pub unsafe fn get_physical_device_memory_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        memory_properties: &mut vk::PhysicalDeviceMemoryProperties2KHR,
    ) {
        (self.fp.get_physical_device_memory_properties2_khr)(physical_device, memory_properties);
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceProperties2KHR.html>
    #[inline]
    pub unsafe fn get_physical_device_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        properties: &mut vk::PhysicalDeviceProperties2KHR,
    ) {
        (self.fp.get_physical_device_properties2_khr)(physical_device, properties);
    }

    /// Retrieve the number of elements to pass to [`get_physical_device_queue_family_properties2()`][Self::get_physical_device_queue_family_properties2()]
    #[inline]
    pub unsafe fn get_physical_device_queue_family_properties2_len(
        &self,
        physical_device: vk::PhysicalDevice,
    ) -> usize {
        let mut count = 0;
        (self.fp.get_physical_device_queue_family_properties2_khr)(
            physical_device,
            &mut count,
            ptr::null_mut(),
        );
        count as usize
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceQueueFamilyProperties2KHR.html>
    ///
    /// Call [`get_physical_device_queue_family_properties2_len()`][Self::get_physical_device_queue_family_properties2_len()] to query the number of elements to pass to `out`.
    /// Be sure to [`Default::default()`]-initialize these elements and optionally set their `p_next` pointer.
    #[inline]
    pub unsafe fn get_physical_device_queue_family_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        out: &mut [vk::QueueFamilyProperties2KHR],
    ) {
        let mut count = out.len() as u32;
        (self.fp.get_physical_device_queue_family_properties2_khr)(
            physical_device,
            &mut count,
            out.as_mut_ptr(),
        );
        assert_eq!(count as usize, out.len());
    }

    /// Retrieve the number of elements to pass to [`get_physical_device_sparse_image_format_properties2()`][Self::get_physical_device_sparse_image_format_properties2()]
    #[inline]
    pub unsafe fn get_physical_device_sparse_image_format_properties2_len(
        &self,
        physical_device: vk::PhysicalDevice,
        format_info: &vk::PhysicalDeviceSparseImageFormatInfo2KHR,
    ) -> usize {
        let mut count = 0;
        (self
            .fp
            .get_physical_device_sparse_image_format_properties2_khr)(
            physical_device,
            format_info,
            &mut count,
            ptr::null_mut(),
        );
        count as usize
    }

    /// <https://www.khronos.org/registry/vulkan/specs/1.3-extensions/man/html/vkGetPhysicalDeviceSparseImageFormatProperties2KHR.html>
    ///
    /// Call [`get_physical_device_sparse_image_format_properties2_len()`][Self::get_physical_device_sparse_image_format_properties2_len()] to query the number of elements to pass to `out`.
    /// Be sure to [`Default::default()`]-initialize these elements and optionally set their `p_next` pointer.
    #[inline]
    pub unsafe fn get_physical_device_sparse_image_format_properties2(
        &self,
        physical_device: vk::PhysicalDevice,
        format_info: &vk::PhysicalDeviceSparseImageFormatInfo2KHR,
        out: &mut [vk::SparseImageFormatProperties2KHR],
    ) {
        let mut count = out.len() as u32;
        (self
            .fp
            .get_physical_device_sparse_image_format_properties2_khr)(
            physical_device,
            format_info,
            &mut count,
            out.as_mut_ptr(),
        );
        assert_eq!(count as usize, out.len());
    }

    #[inline]
    pub const fn name() -> &'static CStr {
        vk::KhrGetPhysicalDeviceProperties2Fn::name()
    }

    #[inline]
    pub fn fp(&self) -> &vk::KhrGetPhysicalDeviceProperties2Fn {
        &self.fp
    }
}