From bbbcd037a9cb29be9f54212eaee30551beaab0da Mon Sep 17 00:00:00 2001
From: Rua <ruawhitepaw@gmail.com>
Date: Sat, 20 Mar 2021 14:08:00 +0100
Subject: [PATCH] Add VK_EXT_full_screen_exclusive extension (#399)

---
 .../extensions/ext/full_screen_exclusive.rs   | 100 ++++++++++++++++++
 ash/src/extensions/ext/mod.rs                 |   2 +
 2 files changed, 102 insertions(+)
 create mode 100644 ash/src/extensions/ext/full_screen_exclusive.rs

diff --git a/ash/src/extensions/ext/full_screen_exclusive.rs b/ash/src/extensions/ext/full_screen_exclusive.rs
new file mode 100644
index 000000000..51951300e
--- /dev/null
+++ b/ash/src/extensions/ext/full_screen_exclusive.rs
@@ -0,0 +1,100 @@
+#![allow(dead_code)]
+use crate::prelude::*;
+use crate::version::{DeviceV1_0, InstanceV1_0};
+use crate::vk;
+use std::ffi::CStr;
+use std::mem;
+use std::ptr;
+
+#[derive(Clone)]
+pub struct FullScreenExclusive {
+    handle: vk::Device,
+    full_screen_exclusive_fn: vk::ExtFullScreenExclusiveFn,
+}
+
+impl FullScreenExclusive {
+    pub fn new<I: InstanceV1_0, D: DeviceV1_0>(instance: &I, device: &D) -> FullScreenExclusive {
+        let full_screen_exclusive_fn = vk::ExtFullScreenExclusiveFn::load(|name| unsafe {
+            mem::transmute(instance.get_device_proc_addr(device.handle(), name.as_ptr()))
+        });
+        FullScreenExclusive {
+            handle: device.handle(),
+            full_screen_exclusive_fn,
+        }
+    }
+
+    pub fn name() -> &'static CStr {
+        vk::ExtFullScreenExclusiveFn::name()
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkAcquireFullScreenExclusiveModeEXT.html>"]
+    pub unsafe fn acquire_full_screen_exclusive_mode(
+        &self,
+        swapchain: vk::SwapchainKHR,
+    ) -> VkResult<()> {
+        self.full_screen_exclusive_fn
+            .acquire_full_screen_exclusive_mode_ext(self.handle, swapchain)
+            .result()
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetPhysicalDeviceSurfacePresentModes2EXT.html>"]
+    pub unsafe fn get_physical_device_surface_present_modes2(
+        &self,
+        physical_device: vk::PhysicalDevice,
+        surface_info: &vk::PhysicalDeviceSurfaceInfo2KHR,
+    ) -> VkResult<Vec<vk::PresentModeKHR>> {
+        let mut count = mem::zeroed();
+        self.full_screen_exclusive_fn
+            .get_physical_device_surface_present_modes2_ext(
+                physical_device,
+                surface_info,
+                &mut count,
+                ptr::null_mut(),
+            )
+            .result()?;
+        let mut present_modes = Vec::<vk::PresentModeKHR>::with_capacity(count as usize);
+        let err_code = self
+            .full_screen_exclusive_fn
+            .get_physical_device_surface_present_modes2_ext(
+                physical_device,
+                surface_info,
+                &mut count,
+                present_modes.as_mut_ptr(),
+            );
+        present_modes.set_len(count as usize);
+        err_code.result_with_success(present_modes)
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkReleaseFullScreenExclusiveModeEXT.html>"]
+    pub unsafe fn release_full_screen_exclusive_mode(
+        &self,
+        swapchain: vk::SwapchainKHR,
+    ) -> VkResult<()> {
+        self.full_screen_exclusive_fn
+            .release_full_screen_exclusive_mode_ext(self.handle, swapchain)
+            .result()
+    }
+
+    #[doc = "<https://www.khronos.org/registry/vulkan/specs/1.2-extensions/man/html/vkGetDeviceGroupSurfacePresentModes2EXT.html>"]
+    pub unsafe fn get_device_group_surface_present_modes2(
+        &self,
+        surface_info: &vk::PhysicalDeviceSurfaceInfo2KHR,
+    ) -> VkResult<vk::DeviceGroupPresentModeFlagsKHR> {
+        let mut present_modes = mem::zeroed();
+        self.full_screen_exclusive_fn
+            .get_device_group_surface_present_modes2_ext(
+                self.handle,
+                surface_info,
+                &mut present_modes,
+            )
+            .result_with_success(present_modes)
+    }
+
+    pub fn fp(&self) -> &vk::ExtFullScreenExclusiveFn {
+        &self.full_screen_exclusive_fn
+    }
+
+    pub fn device(&self) -> vk::Device {
+        self.handle
+    }
+}
diff --git a/ash/src/extensions/ext/mod.rs b/ash/src/extensions/ext/mod.rs
index be13c3c2e..e744feb8c 100644
--- a/ash/src/extensions/ext/mod.rs
+++ b/ash/src/extensions/ext/mod.rs
@@ -4,6 +4,7 @@ pub use self::debug_marker::DebugMarker;
 #[allow(deprecated)]
 pub use self::debug_report::DebugReport;
 pub use self::debug_utils::DebugUtils;
+pub use self::full_screen_exclusive::FullScreenExclusive;
 pub use self::metal_surface::MetalSurface;
 pub use self::tooling_info::ToolingInfo;
 
@@ -13,5 +14,6 @@ mod debug_marker;
 #[deprecated(note = "Please use the [DebugUtils](struct.DebugUtils.html) extension instead.")]
 mod debug_report;
 mod debug_utils;
+mod full_screen_exclusive;
 mod metal_surface;
 mod tooling_info;