Use plain integers for Vulkan handle types in auto-generated bindings

Author: Rua

sdl2-sys/sdl_bindings.rs

@@ -29283,13 +29283,11 @@ extern "C" {
 pub struct VkInstance_T {
     _unused: [u8; 0],
 }
-pub type VkInstance = *mut VkInstance_T;
 #[repr(C)]
 #[derive(Debug, Copy, Clone)]
 pub struct VkSurfaceKHR_T {
     _unused: [u8; 0],
 }
-pub type VkSurfaceKHR = *mut VkSurfaceKHR_T;
 pub type SDL_vulkanInstance = VkInstance;
 pub type SDL_vulkanSurface = VkSurfaceKHR;
 extern "C" {
@@ -29488,6 +29486,10 @@ extern "C" {
         h: *mut ::std::os::raw::c_int,
     );
 }
+/// <div rustbindgen replaces="VkInstance"></div>
+pub type VkInstance = usize;
+/// <div rustbindgen replaces="VkSurfaceKHR"></div>
+pub type VkSurfaceKHR = u64;
 pub type __builtin_va_list = [__va_list_tag; 1usize];
 #[repr(C)]
 #[derive(Debug, Copy, Clone)]

sdl2-sys/wrapper.h

@@ -1,3 +1,13 @@
 #include <SDL.h>
 #include <SDL_syswm.h>
 #include <SDL_vulkan.h>
+
+/**
+ * <div rustbindgen replaces="VkInstance"></div>
+ */
+typedef uintptr_t VkInstance_int;
+
+/**
+ * <div rustbindgen replaces="VkSurfaceKHR"></div>
+ */
+typedef uint64_t VkSurfaceKHR_int;

src/sdl2/video.rs

@@ -18,9 +18,8 @@ use get_error;
 
 use sys;
 
+pub use sys::{VkInstance, VkSurfaceKHR};
 
-type VkInstance = usize;
-type VkSurfaceKHR = u64;
 
 pub struct WindowSurfaceRef<'a>(&'a mut SurfaceRef, &'a Window);
 
@@ -1147,11 +1146,11 @@ impl Window {
     /// [`vkCreateInstance`](https://www.khronos.org/registry/vulkan/specs/1.1-extensions/man/html/vkCreateInstance.html)
     /// function in the Vulkan library.
     pub fn vulkan_create_surface(&self, instance: VkInstance) -> Result<VkSurfaceKHR, String> {
-        let mut surface: sys::VkSurfaceKHR = ptr::null_mut();
-        if unsafe { sys::SDL_Vulkan_CreateSurface(self.context.raw, instance as *mut _, &mut surface) } == sys::SDL_bool::SDL_FALSE {
+        let mut surface: VkSurfaceKHR = 0;
+        if unsafe { sys::SDL_Vulkan_CreateSurface(self.context.raw, instance, &mut surface) } == sys::SDL_bool::SDL_FALSE {
             Err(get_error())
         } else {
-            Ok(surface as VkSurfaceKHR)
+            Ok(surface)
         }
     }