[wgpu]: Switch to wgpu-types for locking primitives

Author: bushrat011899

Cargo.lock

@@ -35,7 +35,6 @@ ignored = ["cfg_aliases"]
 [features]
 default = [
     "std",
-    "parking_lot",
     "dx12",
     "metal",
     "gles",
@@ -191,9 +190,9 @@ std = [
 ##
 ## This is a recommended feature for most users and should only be disabled when
 ## required, e.g., for `no_std` support.
-## If disabled, either `std::sync::Mutex` or `core::cell::RefCell` will be used,
-## based on whether `std` is enabled or not.
-parking_lot = ["dep:parking_lot"]
+## If disabled, `core::cell::RefCell` will be used.
+# FIXME: This can probably be removed as a feature and directly controlled by `std`
+parking_lot = ["wgpu-types/std"]
 
 ## Enables `exhaust` method for `TextureFormat` of `wgpu-types`.
 ##
@@ -217,7 +216,6 @@ cfg-if.workspace = true
 document-features.workspace = true
 log.workspace = true
 hashbrown.workspace = true
-parking_lot = { workspace = true, optional = true }
 profiling.workspace = true
 raw-window-handle = { workspace = true, features = ["alloc"] }
 static_assertions.workspace = true
@@ -238,6 +236,11 @@ wgpu-core = { workspace = true, features = [
 ] }
 wgpu-hal.workspace = true
 
+# FIXME: Native platforms mandate `Send`/`Sync`, which is only possible with `std` enabled.
+wgpu-types = { workspace = true, features = [
+    "std",
+] }
+
 smallvec.workspace = true
 
 ###############

wgpu/Cargo.toml

@@ -10,7 +10,6 @@ mod belt;
 mod device;
 mod encoder;
 mod init;
-mod mutex;
 mod panicking;
 mod spirv;
 mod texture_blitter;
@@ -29,8 +28,8 @@ pub use wgt::{
     math::*, DispatchIndirectArgs, DrawIndexedIndirectArgs, DrawIndirectArgs, TextureDataOrder,
 };
 
-pub(crate) use mutex::Mutex;
 pub(crate) use panicking::is_panicking;
+pub(crate) use wgt::sync::Mutex;
 
 use crate::BufferUsages;