Add VK_KHR_maintenance extensions (#406)

ash/src/extensions/khr/maintenance1.rs

@@ -0,0 +1,45 @@
+#![allow(dead_code)]
+use crate::version::{DeviceV1_0, InstanceV1_0};
+use crate::vk;
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct Maintenance1 {
+    handle: vk::Device,
+    fns: vk::KhrMaintenance1Fn,
+}
+
+impl Maintenance1 {
+    pub fn new<I: InstanceV1_0, D: DeviceV1_0>(instance: &I, device: &D) -> Maintenance1 {
+        let fns = vk::KhrMaintenance1Fn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr()))
+        });
+        Maintenance1 {
+            handle: device.handle(),
+            fns,
+        }
+    }
+
+    pub fn name() -> &'static CStr {
+        vk::KhrMaintenance1Fn::name()
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkTrimCommandPoolKHR.html>"]
+    unsafe fn trim_command_pool(
+        &self,
+        command_pool: vk::CommandPool,
+        flags: vk::CommandPoolTrimFlagsKHR,
+    ) {
+        self.fns
+            .trim_command_pool_khr(self.handle, command_pool, flags);
+    }
+
+    pub fn fp(&self) -> &vk::KhrMaintenance1Fn {
+        &self.fns
+    }
+
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}

ash/src/extensions/khr/maintenance3.rs

@@ -0,0 +1,45 @@
+#![allow(dead_code)]
+use crate::version::{DeviceV1_0, InstanceV1_0};
+use crate::vk;
+use std::ffi::CStr;
+use std::mem;
+
+#[derive(Clone)]
+pub struct Maintenance3 {
+    handle: vk::Device,
+    fns: vk::KhrMaintenance3Fn,
+}
+
+impl Maintenance3 {
+    pub fn new<I: InstanceV1_0, D: DeviceV1_0>(instance: &I, device: &D) -> Maintenance3 {
+        let fns = vk::KhrMaintenance3Fn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr()))
+        });
+        Maintenance3 {
+            handle: device.handle(),
+            fns,
+        }
+    }
+
+    pub fn name() -> &'static CStr {
+        vk::KhrMaintenance3Fn::name()
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetDescriptorSetLayoutSupportKHR.html>"]
+    unsafe fn get_descriptor_set_layout_support(
+        &self,
+        create_info: &vk::DescriptorSetLayoutCreateInfo,
+        out: &mut vk::DescriptorSetLayoutSupportKHR,
+    ) {
+        self.fns
+            .get_descriptor_set_layout_support_khr(self.handle, create_info, out);
+    }
+
+    pub fn fp(&self) -> &vk::KhrMaintenance3Fn {
+        &self.fns
+    }
+
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}

ash/src/extensions/khr/mod.rs

@@ -5,6 +5,8 @@ pub use self::display::Display;
 pub use self::display_swapchain::DisplaySwapchain;
 pub use self::draw_indirect_count::DrawIndirectCount;
 pub use self::external_memory_fd::ExternalMemoryFd;
+pub use self::maintenance1::Maintenance1;
+pub use self::maintenance3::Maintenance3;
 pub use self::pipeline_executable_properties::PipelineExecutableProperties;
 pub use self::push_descriptor::PushDescriptor;
 pub use self::ray_tracing_pipeline::RayTracingPipeline;
@@ -23,6 +25,8 @@ mod display;
 mod display_swapchain;
 mod draw_indirect_count;
 mod external_memory_fd;
+mod maintenance1;
+mod maintenance3;
 mod pipeline_executable_properties;
 mod push_descriptor;
 mod ray_tracing_pipeline;