From 8dd16259287f58f9273002717ec4d27e97127719 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 12 Jun 2024 07:43:14 +0200
Subject: Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/wgpu-core/src/any_surface.rs | 95 ---------------------------
 1 file changed, 95 deletions(-)
 delete mode 100644 third_party/rust/wgpu-core/src/any_surface.rs

(limited to 'third_party/rust/wgpu-core/src/any_surface.rs')

diff --git a/third_party/rust/wgpu-core/src/any_surface.rs b/third_party/rust/wgpu-core/src/any_surface.rs
deleted file mode 100644
index 94edfc4433..0000000000
--- a/third_party/rust/wgpu-core/src/any_surface.rs
+++ /dev/null
@@ -1,95 +0,0 @@
-use wgt::Backend;
-
-/// The `AnySurface` type: a `Arc` of a `A::Surface` for any backend `A`.
-use crate::hal_api::HalApi;
-
-use std::fmt;
-use std::mem::ManuallyDrop;
-use std::ptr::NonNull;
-
-struct AnySurfaceVtable {
-    // We oppurtunistically store the backend here, since we now it will be used
-    // with backend selection and it can be stored in static memory.
-    backend: Backend,
-    // Drop glue which knows how to drop the stored data.
-    drop: unsafe fn(*mut ()),
-}
-
-/// An `A::Surface`, for any backend `A`.
-///
-/// Any `AnySurface` is just like an `A::Surface`, except that the `A` type
-/// parameter is erased. To access the `Surface`, you must downcast to a
-/// particular backend with the \[`downcast_ref`\] or \[`take`\] methods.
-pub struct AnySurface {
-    data: NonNull<()>,
-    vtable: &'static AnySurfaceVtable,
-}
-
-impl AnySurface {
-    /// Construct an `AnySurface` that owns an `A::Surface`.
-    pub fn new<A: HalApi>(surface: A::Surface) -> AnySurface {
-        unsafe fn drop_glue<A: HalApi>(ptr: *mut ()) {
-            unsafe {
-                _ = Box::from_raw(ptr.cast::<A::Surface>());
-            }
-        }
-
-        let data = NonNull::from(Box::leak(Box::new(surface)));
-
-        AnySurface {
-            data: data.cast(),
-            vtable: &AnySurfaceVtable {
-                backend: A::VARIANT,
-                drop: drop_glue::<A>,
-            },
-        }
-    }
-
-    /// Get the backend this surface was created through.
-    pub fn backend(&self) -> Backend {
-        self.vtable.backend
-    }
-
-    /// If `self` refers to an `A::Surface`, returns a reference to it.
-    pub fn downcast_ref<A: HalApi>(&self) -> Option<&A::Surface> {
-        if A::VARIANT != self.vtable.backend {
-            return None;
-        }
-
-        // SAFETY: We just checked the instance above implicitly by the backend
-        // that it was statically constructed through.
-        Some(unsafe { &*self.data.as_ptr().cast::<A::Surface>() })
-    }
-
-    /// If `self` is an `Arc<A::Surface>`, returns that.
-    pub fn take<A: HalApi>(self) -> Option<A::Surface> {
-        if A::VARIANT != self.vtable.backend {
-            return None;
-        }
-
-        // Disable drop glue, since we're returning the owned surface. The
-        // caller will be responsible for dropping it.
-        let this = ManuallyDrop::new(self);
-
-        // SAFETY: We just checked the instance above implicitly by the backend
-        // that it was statically constructed through.
-        Some(unsafe { *Box::from_raw(this.data.as_ptr().cast::<A::Surface>()) })
-    }
-}
-
-impl Drop for AnySurface {
-    fn drop(&mut self) {
-        unsafe { (self.vtable.drop)(self.data.as_ptr()) }
-    }
-}
-
-impl fmt::Debug for AnySurface {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "AnySurface<{}>", self.vtable.backend)
-    }
-}
-
-#[cfg(send_sync)]
-unsafe impl Send for AnySurface {}
-#[cfg(send_sync)]
-unsafe impl Sync for AnySurface {}
-- 
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