Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1345 insertions, 0 deletions

diff --git a/gfx/wgpu_bindings/src/server.rs b/gfx/wgpu_bindings/src/server.rs
new file mode 100644
index 0000000000..7a7e08aa30
--- /dev/null
+++ b/gfx/wgpu_bindings/src/server.rs
@@ -0,0 +1,1345 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+use crate::{
+    error::{ErrMsg, ErrorBuffer, ErrorBufferType},
+    wgpu_string, AdapterInformation, ByteBuf, CommandEncoderAction, DeviceAction, DropAction,
+    QueueWriteAction, SwapChainId, TextureAction,
+};
+
+use nsstring::{nsACString, nsCString, nsString};
+
+use wgc::{device::DeviceError, gfx_select, id};
+use wgc::{pipeline::CreateShaderModuleError, resource::BufferAccessError};
+#[allow(unused_imports)]
+use wgh::Instance;
+
+use std::borrow::Cow;
+#[allow(unused_imports)]
+use std::mem;
+use std::os::raw::c_void;
+use std::ptr;
+use std::slice;
+use std::sync::atomic::{AtomicU32, Ordering};
+
+use std::ffi::{c_long, c_ulong};
+#[cfg(target_os = "windows")]
+use winapi::shared::dxgi;
+#[cfg(target_os = "windows")]
+use winapi::um::d3d12 as d3d12_ty;
+#[cfg(target_os = "windows")]
+use winapi::um::winnt::GENERIC_ALL;
+#[cfg(target_os = "windows")]
+use winapi::Interface;
+
+// The seemingly redundant u64 suffixes help cbindgen with generating the right C++ code.
+// See https://github.com/mozilla/cbindgen/issues/849.
+
+/// We limit the size of buffer allocations for stability reason.
+/// We can reconsider this limit in the future. Note that some drivers (mesa for example),
+/// have issues when the size of a buffer, mapping or copy command does not fit into a
+/// signed 32 bits integer, so beyond a certain size, large allocations will need some form
+/// of driver allow/blocklist.
+pub const MAX_BUFFER_SIZE: wgt::BufferAddress = 1u64 << 30u64;
+const MAX_BUFFER_SIZE_U32: u32 = MAX_BUFFER_SIZE as u32;
+
+// Mesa has issues with height/depth that don't fit in a 16 bits signed integers.
+const MAX_TEXTURE_EXTENT: u32 = std::i16::MAX as u32;
+// We have to restrict the number of bindings for any given resource type so that
+// the sum of these limits multiplied by the number of shader stages fits
+// maxBindingsPerBindGroup (1000). This restriction is arbitrary and is likely to
+// change eventually. See github.com/gpuweb/gpuweb/pull/4484
+// For now it's impractical for users to have very large numbers of bindings so this
+// limit should not be too restrictive until we add support for a bindless API.
+// Then we may have to ignore the spec or get it changed.
+const MAX_BINDINGS_PER_RESOURCE_TYPE: u32 = 64;
+
+fn restrict_limits(limits: wgt::Limits) -> wgt::Limits {
+    wgt::Limits {
+        max_buffer_size: limits.max_buffer_size.min(MAX_BUFFER_SIZE),
+        max_texture_dimension_1d: limits.max_texture_dimension_1d.min(MAX_TEXTURE_EXTENT),
+        max_texture_dimension_2d: limits.max_texture_dimension_2d.min(MAX_TEXTURE_EXTENT),
+        max_texture_dimension_3d: limits.max_texture_dimension_3d.min(MAX_TEXTURE_EXTENT),
+        max_sampled_textures_per_shader_stage: limits
+            .max_sampled_textures_per_shader_stage
+            .min(MAX_BINDINGS_PER_RESOURCE_TYPE),
+        max_samplers_per_shader_stage: limits
+            .max_samplers_per_shader_stage
+            .min(MAX_BINDINGS_PER_RESOURCE_TYPE),
+        max_storage_textures_per_shader_stage: limits
+            .max_storage_textures_per_shader_stage
+            .min(MAX_BINDINGS_PER_RESOURCE_TYPE),
+        max_uniform_buffers_per_shader_stage: limits
+            .max_uniform_buffers_per_shader_stage
+            .min(MAX_BINDINGS_PER_RESOURCE_TYPE),
+        max_storage_buffers_per_shader_stage: limits
+            .max_storage_buffers_per_shader_stage
+            .min(MAX_BINDINGS_PER_RESOURCE_TYPE),
+        max_uniform_buffer_binding_size: limits
+            .max_uniform_buffer_binding_size
+            .min(MAX_BUFFER_SIZE_U32),
+        max_storage_buffer_binding_size: limits
+            .max_storage_buffer_binding_size
+            .min(MAX_BUFFER_SIZE_U32),
+        max_non_sampler_bindings: 10_000,
+        ..limits
+    }
+}
+
+// hide wgc's global in private
+pub struct Global {
+    global: wgc::global::Global,
+    #[allow(dead_code)]
+    owner: *mut c_void,
+}
+
+impl std::ops::Deref for Global {
+    type Target = wgc::global::Global;
+    fn deref(&self) -> &Self::Target {
+        &self.global
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_new(owner: *mut c_void) -> *mut Global {
+    log::info!("Initializing WGPU server");
+    let backends_pref = static_prefs::pref!("dom.webgpu.wgpu-backend").to_string();
+    let backends = if backends_pref.is_empty() {
+        #[cfg(windows)]
+        {
+            wgt::Backends::DX12
+        }
+        #[cfg(not(windows))]
+        {
+            wgt::Backends::PRIMARY
+        }
+    } else {
+        log::info!(
+            "Selecting backends based on dom.webgpu.wgpu-backend pref: {:?}",
+            backends_pref
+        );
+        wgc::instance::parse_backends_from_comma_list(&backends_pref)
+    };
+
+    let mut instance_flags = wgt::InstanceFlags::from_build_config().with_env();
+    if !static_prefs::pref!("dom.webgpu.hal-labels") {
+        instance_flags.insert(wgt::InstanceFlags::DISCARD_HAL_LABELS);
+    }
+
+    let global = wgc::global::Global::new(
+        "wgpu",
+        wgt::InstanceDescriptor {
+            backends,
+            flags: instance_flags,
+            dx12_shader_compiler: wgt::Dx12Compiler::Fxc,
+            gles_minor_version: wgt::Gles3MinorVersion::Automatic,
+        },
+    );
+    let global = Global { global, owner };
+    Box::into_raw(Box::new(global))
+}
+
+/// # Safety
+///
+/// This function is unsafe because improper use may lead to memory
+/// problems. For example, a double-free may occur if the function is called
+/// twice on the same raw pointer.
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_delete(global: *mut Global) {
+    log::info!("Terminating WGPU server");
+    let _ = Box::from_raw(global);
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_poll_all_devices(global: &Global, force_wait: bool) {
+    global.poll_all_devices(force_wait).unwrap();
+}
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug)]
+pub struct FfiLUID {
+    low_part: c_ulong,
+    high_part: c_long,
+}
+
+/// Request an adapter according to the specified options.
+/// Provide the list of IDs to pick from.
+///
+/// Returns the index in this list, or -1 if unable to pick.
+///
+/// # Safety
+///
+/// This function is unsafe as there is no guarantee that the given pointer is
+/// valid for `id_length` elements.
+#[allow(unused_variables)]
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_instance_request_adapter(
+    global: &Global,
+    desc: &wgc::instance::RequestAdapterOptions,
+    ids: *const id::AdapterId,
+    id_length: usize,
+    adapter_luid: Option<&FfiLUID>,
+    mut error_buf: ErrorBuffer,
+) -> i8 {
+    let ids = slice::from_raw_parts(ids, id_length);
+
+    // Prefer to use the dx12 backend, if one exists, and use the same DXGI adapter as WebRender.
+    // If wgpu uses a different adapter than WebRender, textures created by
+    // webgpu::ExternalTexture do not work with wgpu.
+    #[cfg(target_os = "windows")]
+    if global.global.instance.dx12.is_some() && adapter_luid.is_some() {
+        let hal = global.global.instance_as_hal::<wgc::api::Dx12>().unwrap();
+        for adapter in hal.enumerate_adapters() {
+            let raw_adapter = adapter.adapter.raw_adapter();
+            let mut desc: dxgi::DXGI_ADAPTER_DESC = unsafe { mem::zeroed() };
+            unsafe {
+                raw_adapter.GetDesc(&mut desc);
+            }
+            let id = ids
+                .iter()
+                .find_map(|id| (id.backend() == wgt::Backend::Dx12).then_some(id));
+            if id.is_some()
+                && desc.AdapterLuid.LowPart == adapter_luid.unwrap().low_part
+                && desc.AdapterLuid.HighPart == adapter_luid.unwrap().high_part
+            {
+                let adapter_id = global
+                    .create_adapter_from_hal::<wgh::api::Dx12>(adapter, Some(id.unwrap().clone()));
+                return ids.iter().position(|&i| i == adapter_id).unwrap() as i8;
+            }
+        }
+        error_buf.init(ErrMsg {
+            message: "Failed to create adapter for dx12",
+            r#type: ErrorBufferType::Internal,
+        });
+        return -1;
+    }
+
+    match global.request_adapter(desc, wgc::instance::AdapterInputs::IdSet(ids)) {
+        Ok(id) => ids.iter().position(|&i| i == id).unwrap() as i8,
+        Err(e) => {
+            error_buf.init(e);
+            -1
+        }
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_adapter_pack_info(
+    global: &Global,
+    self_id: Option<id::AdapterId>,
+    byte_buf: &mut ByteBuf,
+) {
+    let mut data = Vec::new();
+    match self_id {
+        Some(id) => {
+            let wgt::AdapterInfo {
+                name,
+                vendor,
+                device,
+                device_type,
+                driver,
+                driver_info,
+                backend,
+            } = gfx_select!(id => global.adapter_get_info(id)).unwrap();
+
+            if static_prefs::pref!("dom.webgpu.testing.assert-hardware-adapter") {
+                let is_hardware = match device_type {
+                    wgt::DeviceType::IntegratedGpu | wgt::DeviceType::DiscreteGpu => true,
+                    _ => false,
+                };
+                assert!(
+                    is_hardware,
+                    "Expected a hardware gpu adapter, got {:?}",
+                    device_type
+                );
+            }
+
+            let info = AdapterInformation {
+                id,
+                limits: restrict_limits(gfx_select!(id => global.adapter_limits(id)).unwrap()),
+                features: gfx_select!(id => global.adapter_features(id)).unwrap(),
+                name,
+                vendor,
+                device,
+                device_type,
+                driver,
+                driver_info,
+                backend,
+            };
+            bincode::serialize_into(&mut data, &info).unwrap();
+        }
+        None => {
+            bincode::serialize_into(&mut data, &0u64).unwrap();
+        }
+    }
+    *byte_buf = ByteBuf::from_vec(data);
+}
+
+static TRACE_IDX: AtomicU32 = AtomicU32::new(0);
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_adapter_request_device(
+    global: &Global,
+    self_id: id::AdapterId,
+    byte_buf: &ByteBuf,
+    new_id: id::DeviceId,
+    mut error_buf: ErrorBuffer,
+) {
+    let desc: wgc::device::DeviceDescriptor = bincode::deserialize(byte_buf.as_slice()).unwrap();
+    let trace_string = std::env::var("WGPU_TRACE").ok().map(|s| {
+        let idx = TRACE_IDX.fetch_add(1, Ordering::Relaxed);
+        let path = format!("{}/{}/", s, idx);
+
+        if std::fs::create_dir_all(&path).is_err() {
+            log::warn!("Failed to create directory {:?} for wgpu recording.", path);
+        }
+
+        path
+    });
+    let trace_path = trace_string
+        .as_ref()
+        .map(|string| std::path::Path::new(string.as_str()));
+    // TODO: in https://github.com/gfx-rs/wgpu/pull/3626/files#diff-033343814319f5a6bd781494692ea626f06f6c3acc0753a12c867b53a646c34eR97
+    // which introduced the queue id parameter, the queue id is also the device id. I don't know how applicable this is to
+    // other situations (this one in particular).
+    let (_, _, error) = gfx_select!(self_id => global.adapter_request_device(self_id, &desc, trace_path, Some(new_id), Some(new_id.transmute())));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_adapter_drop(global: &Global, adapter_id: id::AdapterId) {
+    gfx_select!(adapter_id => global.adapter_drop(adapter_id))
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_destroy(global: &Global, self_id: id::DeviceId) {
+    gfx_select!(self_id => global.device_destroy(self_id))
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_drop(global: &Global, self_id: id::DeviceId) {
+    gfx_select!(self_id => global.device_drop(self_id))
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_set_device_lost_callback(
+    global: &Global,
+    self_id: id::DeviceId,
+    callback: wgc::device::DeviceLostClosureC,
+) {
+    gfx_select!(self_id => global.device_set_device_lost_closure(self_id, wgc::device::DeviceLostClosure::from_c(callback)));
+}
+
+impl ShaderModuleCompilationMessage {
+    fn set_error(&mut self, error: &CreateShaderModuleError, source: &str) {
+        // The WebGPU spec says that if the message doesn't point to a particular position in
+        // the source, the line number, position, offset and lengths should be zero.
+        self.line_number = 0;
+        self.line_pos = 0;
+        self.utf16_offset = 0;
+        self.utf16_length = 0;
+
+        if let Some(location) = error.location(source) {
+            self.line_number = location.line_number as u64;
+            self.line_pos = location.line_position as u64;
+
+            let start = location.offset as usize;
+            let end = start + location.length as usize;
+            self.utf16_offset = source[0..start].chars().map(|c| c.len_utf16() as u64).sum();
+            self.utf16_length = source[start..end]
+                .chars()
+                .map(|c| c.len_utf16() as u64)
+                .sum();
+        }
+
+        let error_string = error.to_string();
+
+        if !error_string.is_empty() {
+            self.message = nsString::from(&error_string[..]);
+        }
+    }
+}
+
+/// A compilation message representation for the ffi boundary.
+/// the message is immediately copied into an equivalent C++
+/// structure that owns its strings.
+#[repr(C)]
+#[derive(Clone)]
+pub struct ShaderModuleCompilationMessage {
+    pub line_number: u64,
+    pub line_pos: u64,
+    pub utf16_offset: u64,
+    pub utf16_length: u64,
+    pub message: nsString,
+}
+
+/// Creates a shader module and returns an object describing the errors if any.
+///
+/// If there was no error, the returned pointer is nil.
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_create_shader_module(
+    global: &Global,
+    self_id: id::DeviceId,
+    module_id: id::ShaderModuleId,
+    label: Option<&nsACString>,
+    code: &nsCString,
+    out_message: &mut ShaderModuleCompilationMessage,
+    mut error_buf: ErrorBuffer,
+) -> bool {
+    let utf8_label = label.map(|utf16| utf16.to_string());
+    let label = utf8_label.as_ref().map(|s| Cow::from(&s[..]));
+
+    let source_str = code.to_utf8();
+
+    let source = wgc::pipeline::ShaderModuleSource::Wgsl(Cow::from(&source_str[..]));
+
+    let desc = wgc::pipeline::ShaderModuleDescriptor {
+        label,
+        shader_bound_checks: wgt::ShaderBoundChecks::new(),
+    };
+
+    let (_, error) = gfx_select!(
+        self_id => global.device_create_shader_module(
+            self_id, &desc, source, Some(module_id)
+        )
+    );
+
+    if let Some(err) = error {
+        out_message.set_error(&err, &source_str[..]);
+        let err_type = match &err {
+            CreateShaderModuleError::Device(DeviceError::OutOfMemory) => ErrorBufferType::OutOfMemory,
+            CreateShaderModuleError::Device(DeviceError::Lost) => ErrorBufferType::DeviceLost,
+            _ => ErrorBufferType::Validation,
+        };
+
+        // Per spec: "User agents should not include detailed compiler error messages or
+        // shader text in the message text of validation errors arising here: these details
+        // are accessible via getCompilationInfo()"
+        let message = match &err {
+            CreateShaderModuleError::Parsing(_) => "Parsing error".to_string(),
+            CreateShaderModuleError::Validation(_) => "Shader validation error".to_string(),
+            CreateShaderModuleError::Device(device_err) => format!("{device_err:?}"),
+            _ => format!("{err:?}"),
+        };
+
+        error_buf.init(ErrMsg {
+            message: &format!("Shader module creation failed: {message}"),
+            r#type: err_type,
+        });
+        return false;
+    }
+
+    // Avoid allocating the structure that holds errors in the common case (no errors).
+    return true;
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_create_buffer(
+    global: &Global,
+    self_id: id::DeviceId,
+    buffer_id: id::BufferId,
+    label: Option<&nsACString>,
+    size: wgt::BufferAddress,
+    usage: u32,
+    mapped_at_creation: bool,
+    shm_allocation_failed: bool,
+    mut error_buf: ErrorBuffer,
+) {
+    let utf8_label = label.map(|utf16| utf16.to_string());
+    let label = utf8_label.as_ref().map(|s| Cow::from(&s[..]));
+    let usage = wgt::BufferUsages::from_bits_retain(usage);
+
+    // Don't trust the graphics driver with buffer sizes larger than our conservative max texture size.
+    if shm_allocation_failed || size > MAX_BUFFER_SIZE {
+        error_buf.init(ErrMsg {
+            message: "Out of memory",
+            r#type: ErrorBufferType::OutOfMemory,
+        });
+        gfx_select!(self_id => global.create_buffer_error(Some(buffer_id), label));
+        return;
+    }
+
+    let desc = wgc::resource::BufferDescriptor {
+        label,
+        size,
+        usage,
+        mapped_at_creation,
+    };
+    let (_, error) =
+        gfx_select!(self_id => global.device_create_buffer(self_id, &desc, Some(buffer_id)));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+/// # Safety
+///
+/// Callers are responsible for ensuring `callback` is well-formed.
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_buffer_map(
+    global: &Global,
+    buffer_id: id::BufferId,
+    start: wgt::BufferAddress,
+    size: wgt::BufferAddress,
+    map_mode: wgc::device::HostMap,
+    callback: wgc::resource::BufferMapCallbackC,
+    mut error_buf: ErrorBuffer,
+) {
+    let callback = wgc::resource::BufferMapCallback::from_c(callback);
+    let operation = wgc::resource::BufferMapOperation {
+        host: map_mode,
+        callback: Some(callback),
+    };
+    // All errors are also exposed to the mapping callback, so we handle them there and ignore
+    // the returned value of buffer_map_async.
+    let result = gfx_select!(buffer_id => global.buffer_map_async(
+        buffer_id,
+        start .. start + size,
+        operation
+    ));
+
+    if let Err(error) = result {
+        error_buf.init(error);
+    }
+}
+
+#[repr(C)]
+pub struct MappedBufferSlice {
+    pub ptr: *mut u8,
+    pub length: u64,
+}
+
+/// # Safety
+///
+/// This function is unsafe as there is no guarantee that the given pointer is
+/// valid for `size` elements.
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_buffer_get_mapped_range(
+    global: &Global,
+    buffer_id: id::BufferId,
+    start: wgt::BufferAddress,
+    size: wgt::BufferAddress,
+    mut error_buf: ErrorBuffer,
+) -> MappedBufferSlice {
+    let result = gfx_select!(buffer_id => global.buffer_get_mapped_range(
+        buffer_id,
+        start,
+        Some(size)
+    ));
+
+    let (ptr, length) = result.unwrap_or_else(|error| {
+        error_buf.init(error);
+        (std::ptr::null_mut(), 0)
+    });
+    MappedBufferSlice { ptr, length }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_buffer_unmap(
+    global: &Global,
+    buffer_id: id::BufferId,
+    mut error_buf: ErrorBuffer,
+) {
+    if let Err(e) = gfx_select!(buffer_id => global.buffer_unmap(buffer_id)) {
+        match e {
+            // NOTE: This is presumed by CTS test cases, and was even formally specified in the
+            // WebGPU spec. previously, but this doesn't seem formally specified now. :confused:
+            //
+            // TODO: upstream this; see <https://bugzilla.mozilla.org/show_bug.cgi?id=1842297>.
+            BufferAccessError::Invalid => (),
+            other => error_buf.init(other),
+        }
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_buffer_destroy(global: &Global, self_id: id::BufferId) {
+    // Per spec, there is no need for the buffer or even device to be in a valid state,
+    // even calling calling destroy multiple times is fine, so no error to push into
+    // an error scope.
+    let _ = gfx_select!(self_id => global.buffer_destroy(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_buffer_drop(global: &Global, self_id: id::BufferId) {
+    gfx_select!(self_id => global.buffer_drop(self_id, false));
+}
+
+#[allow(unused_variables)]
+#[no_mangle]
+pub extern "C" fn wgpu_server_get_device_fence_handle(
+    global: &Global,
+    device_id: id::DeviceId,
+) -> *mut c_void {
+    assert!(device_id.backend() == wgt::Backend::Dx12);
+
+    #[cfg(target_os = "windows")]
+    if device_id.backend() == wgt::Backend::Dx12 {
+        let mut handle = ptr::null_mut();
+        let dx12_device = unsafe {
+            global.device_as_hal::<wgc::api::Dx12, _, Option<d3d12::Device>>(device_id, |hal_device| {
+                hal_device.map(|device| device.raw_device().clone())
+            })
+        };
+        let dx12_device = match dx12_device {
+            Some(device) => device,
+            None => {
+                return ptr::null_mut();
+            }
+        };
+
+        let dx12_fence = unsafe {
+            global.device_fence_as_hal::<wgc::api::Dx12, _, Option<d3d12::Fence>>(device_id, |hal_fence| {
+                hal_fence.map(|fence| fence.raw_fence().clone())
+            })
+        };
+        let dx12_fence = match dx12_fence {
+            Some(fence) => fence,
+            None => {
+                return ptr::null_mut();
+            }
+        };
+
+        let hr = unsafe {
+            dx12_device.CreateSharedHandle(
+                dx12_fence.as_mut_ptr() as *mut winapi::um::d3d12::ID3D12DeviceChild,
+                std::ptr::null(),
+                GENERIC_ALL,
+                std::ptr::null(),
+                &mut handle,
+            )
+        };
+
+        if hr != 0 {
+            return ptr::null_mut();
+        }
+
+        return handle;
+    }
+    ptr::null_mut()
+}
+
+extern "C" {
+    #[allow(dead_code)]
+    fn wgpu_server_use_external_texture_for_swap_chain(
+        param: *mut c_void,
+        swap_chain_id: SwapChainId,
+    ) -> bool;
+    #[allow(dead_code)]
+    fn wgpu_server_ensure_external_texture_for_swap_chain(
+        param: *mut c_void,
+        swap_chain_id: SwapChainId,
+        device_id: id::DeviceId,
+        texture_id: id::TextureId,
+        width: u32,
+        height: u32,
+        format: wgt::TextureFormat,
+        usage: wgt::TextureUsages,
+    ) -> bool;
+    #[allow(dead_code)]
+    fn wgpu_server_get_external_texture_handle(
+        param: *mut c_void,
+        id: id::TextureId,
+    ) -> *mut c_void;
+}
+
+impl Global {
+    fn device_action<A: wgc::hal_api::HalApi>(
+        &self,
+        self_id: id::DeviceId,
+        action: DeviceAction,
+        mut error_buf: ErrorBuffer,
+    ) {
+        match action {
+            #[allow(unused_variables)]
+            DeviceAction::CreateTexture(id, desc, swap_chain_id) => {
+                let max = MAX_TEXTURE_EXTENT;
+                if desc.size.width > max
+                    || desc.size.height > max
+                    || desc.size.depth_or_array_layers > max
+                {
+                    gfx_select!(self_id => self.create_texture_error(Some(id), desc.label));
+                    error_buf.init(ErrMsg {
+                        message: "Out of memory",
+                        r#type: ErrorBufferType::OutOfMemory,
+                    });
+                    return;
+                }
+
+                #[cfg(target_os = "windows")]
+                {
+                    let use_external_texture = if swap_chain_id.is_some() {
+                        unsafe {
+                            wgpu_server_use_external_texture_for_swap_chain(
+                                self.owner,
+                                swap_chain_id.unwrap(),
+                            )
+                        }
+                    } else {
+                        false
+                    };
+
+                    if use_external_texture && self_id.backend() == wgt::Backend::Dx12 {
+                        let ret = unsafe {
+                            wgpu_server_ensure_external_texture_for_swap_chain(
+                                self.owner,
+                                swap_chain_id.unwrap(),
+                                self_id,
+                                id,
+                                desc.size.width,
+                                desc.size.height,
+                                desc.format,
+                                desc.usage,
+                            )
+                        };
+                        if ret != true {
+                            error_buf.init(ErrMsg {
+                                message: "Failed to create external texture",
+                                r#type: ErrorBufferType::Internal,
+                            });
+                            return;
+                        }
+
+                        let dx12_device = unsafe {
+                            self.device_as_hal::<wgc::api::Dx12, _, d3d12::Device>(
+                                self_id,
+                                |hal_device| hal_device.unwrap().raw_device().clone(),
+                            )
+                        };
+
+                        let handle =
+                            unsafe { wgpu_server_get_external_texture_handle(self.owner, id) };
+                        if handle.is_null() {
+                            error_buf.init(ErrMsg {
+                                message: "Failed to get external texture handle",
+                                r#type: ErrorBufferType::Internal,
+                            });
+                        }
+                        let mut resource = d3d12::Resource::null();
+                        let hr = unsafe {
+                            dx12_device.OpenSharedHandle(
+                                handle,
+                                &d3d12_ty::ID3D12Resource::uuidof(),
+                                resource.mut_void(),
+                            )
+                        };
+                        if hr != 0 {
+                            error_buf.init(ErrMsg {
+                                message: "Failed to open shared handle",
+                                r#type: ErrorBufferType::Internal,
+                            });
+                        }
+
+                        let hal_texture = unsafe {
+                            <wgh::api::Dx12 as wgh::Api>::Device::texture_from_raw(
+                                resource,
+                                wgt::TextureFormat::Bgra8Unorm,
+                                wgt::TextureDimension::D2,
+                                desc.size,
+                                1,
+                                1,
+                            )
+                        };
+                        let (_, error) = unsafe {
+                            self.create_texture_from_hal::<wgh::api::Dx12>(
+                                hal_texture,
+                                self_id,
+                                &desc,
+                                Some(id),
+                            )
+                        };
+                        if let Some(err) = error {
+                            error_buf.init(err);
+                        }
+                        return;
+                    }
+                }
+
+                let (_, error) = self.device_create_texture::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateSampler(id, desc) => {
+                let (_, error) = self.device_create_sampler::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateBindGroupLayout(id, desc) => {
+                let (_, error) =
+                    self.device_create_bind_group_layout::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::RenderPipelineGetBindGroupLayout(pipeline_id, index, bgl_id) => {
+                let (_, error) = self.render_pipeline_get_bind_group_layout::<A>(
+                    pipeline_id,
+                    index,
+                    Some(bgl_id),
+                );
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::ComputePipelineGetBindGroupLayout(pipeline_id, index, bgl_id) => {
+                let (_, error) = self.compute_pipeline_get_bind_group_layout::<A>(
+                    pipeline_id,
+                    index,
+                    Some(bgl_id),
+                );
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreatePipelineLayout(id, desc) => {
+                let (_, error) = self.device_create_pipeline_layout::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateBindGroup(id, desc) => {
+                let (_, error) = self.device_create_bind_group::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateShaderModule(id, desc, code) => {
+                let source = wgc::pipeline::ShaderModuleSource::Wgsl(code);
+                let (_, error) =
+                    self.device_create_shader_module::<A>(self_id, &desc, source, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateComputePipeline(id, desc, implicit) => {
+                let implicit_ids = implicit
+                    .as_ref()
+                    .map(|imp| wgc::device::ImplicitPipelineIds {
+                        root_id: Some(imp.pipeline),
+                        group_ids: &imp.bind_groups,
+                    });
+                let (_, error) = self.device_create_compute_pipeline::<A>(
+                    self_id,
+                    &desc,
+                    Some(id),
+                    implicit_ids,
+                );
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateRenderPipeline(id, desc, implicit) => {
+                let implicit_ids = implicit
+                    .as_ref()
+                    .map(|imp| wgc::device::ImplicitPipelineIds {
+                        root_id: Some(imp.pipeline),
+                        group_ids: &imp.bind_groups,
+                    });
+                let (_, error) =
+                    self.device_create_render_pipeline::<A>(self_id, &desc, Some(id), implicit_ids);
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateRenderBundle(id, encoder, desc) => {
+                let (_, error) = self.render_bundle_encoder_finish::<A>(encoder, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::CreateRenderBundleError(buffer_id, label) => {
+                self.create_render_bundle_error::<A>(Some(buffer_id), label);
+            }
+            DeviceAction::CreateCommandEncoder(id, desc) => {
+                let (_, error) = self.device_create_command_encoder::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+            DeviceAction::Error { message, r#type } => {
+                error_buf.init(ErrMsg {
+                    message: &message,
+                    r#type,
+                });
+            }
+        }
+    }
+
+    fn texture_action<A: wgc::hal_api::HalApi>(
+        &self,
+        self_id: id::TextureId,
+        action: TextureAction,
+        mut error_buf: ErrorBuffer,
+    ) {
+        match action {
+            TextureAction::CreateView(id, desc) => {
+                let (_, error) = self.texture_create_view::<A>(self_id, &desc, Some(id));
+                if let Some(err) = error {
+                    error_buf.init(err);
+                }
+            }
+        }
+    }
+
+    fn command_encoder_action<A: wgc::hal_api::HalApi>(
+        &self,
+        self_id: id::CommandEncoderId,
+        action: CommandEncoderAction,
+        mut error_buf: ErrorBuffer,
+    ) {
+        match action {
+            CommandEncoderAction::CopyBufferToBuffer {
+                src,
+                src_offset,
+                dst,
+                dst_offset,
+                size,
+            } => {
+                if let Err(err) = self.command_encoder_copy_buffer_to_buffer::<A>(
+                    self_id, src, src_offset, dst, dst_offset, size,
+                ) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::CopyBufferToTexture { src, dst, size } => {
+                if let Err(err) =
+                    self.command_encoder_copy_buffer_to_texture::<A>(self_id, &src, &dst, &size)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::CopyTextureToBuffer { src, dst, size } => {
+                if let Err(err) =
+                    self.command_encoder_copy_texture_to_buffer::<A>(self_id, &src, &dst, &size)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::CopyTextureToTexture { src, dst, size } => {
+                if let Err(err) =
+                    self.command_encoder_copy_texture_to_texture::<A>(self_id, &src, &dst, &size)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::RunComputePass {
+                base,
+                timestamp_writes,
+            } => {
+                if let Err(err) = self.command_encoder_run_compute_pass_impl::<A>(
+                    self_id,
+                    base.as_ref(),
+                    timestamp_writes.as_ref(),
+                ) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::WriteTimestamp {
+                query_set_id,
+                query_index,
+            } => {
+                if let Err(err) =
+                    self.command_encoder_write_timestamp::<A>(self_id, query_set_id, query_index)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::ResolveQuerySet {
+                query_set_id,
+                start_query,
+                query_count,
+                destination,
+                destination_offset,
+            } => {
+                if let Err(err) = self.command_encoder_resolve_query_set::<A>(
+                    self_id,
+                    query_set_id,
+                    start_query,
+                    query_count,
+                    destination,
+                    destination_offset,
+                ) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::RunRenderPass {
+                base,
+                target_colors,
+                target_depth_stencil,
+                timestamp_writes,
+                occlusion_query_set_id,
+            } => {
+                if let Err(err) = self.command_encoder_run_render_pass_impl::<A>(
+                    self_id,
+                    base.as_ref(),
+                    &target_colors,
+                    target_depth_stencil.as_ref(),
+                    timestamp_writes.as_ref(),
+                    occlusion_query_set_id,
+                ) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::ClearBuffer { dst, offset, size } => {
+                if let Err(err) = self.command_encoder_clear_buffer::<A>(self_id, dst, offset, size)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::ClearTexture {
+                dst,
+                ref subresource_range,
+            } => {
+                if let Err(err) =
+                    self.command_encoder_clear_texture::<A>(self_id, dst, subresource_range)
+                {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::PushDebugGroup(marker) => {
+                if let Err(err) = self.command_encoder_push_debug_group::<A>(self_id, &marker) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::PopDebugGroup => {
+                if let Err(err) = self.command_encoder_pop_debug_group::<A>(self_id) {
+                    error_buf.init(err);
+                }
+            }
+            CommandEncoderAction::InsertDebugMarker(marker) => {
+                if let Err(err) = self.command_encoder_insert_debug_marker::<A>(self_id, &marker) {
+                    error_buf.init(err);
+                }
+            }
+        }
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_device_action(
+    global: &Global,
+    self_id: id::DeviceId,
+    byte_buf: &ByteBuf,
+    error_buf: ErrorBuffer,
+) {
+    let action = bincode::deserialize(byte_buf.as_slice()).unwrap();
+    gfx_select!(self_id => global.device_action(self_id, action, error_buf));
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_texture_action(
+    global: &Global,
+    self_id: id::TextureId,
+    byte_buf: &ByteBuf,
+    error_buf: ErrorBuffer,
+) {
+    let action = bincode::deserialize(byte_buf.as_slice()).unwrap();
+    gfx_select!(self_id => global.texture_action(self_id, action, error_buf));
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_command_encoder_action(
+    global: &Global,
+    self_id: id::CommandEncoderId,
+    byte_buf: &ByteBuf,
+    error_buf: ErrorBuffer,
+) {
+    let action = bincode::deserialize(byte_buf.as_slice()).unwrap();
+    gfx_select!(self_id => global.command_encoder_action(self_id, action, error_buf));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_create_encoder(
+    global: &Global,
+    self_id: id::DeviceId,
+    desc: &wgt::CommandEncoderDescriptor<Option<&nsACString>>,
+    new_id: id::CommandEncoderId,
+    mut error_buf: ErrorBuffer,
+) {
+    let utf8_label = desc.label.map(|utf16| utf16.to_string());
+    let label = utf8_label.as_ref().map(|s| Cow::from(&s[..]));
+
+    let desc = desc.map_label(|_| label);
+    let (_, error) =
+        gfx_select!(self_id => global.device_create_command_encoder(self_id, &desc, Some(new_id)));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_encoder_finish(
+    global: &Global,
+    self_id: id::CommandEncoderId,
+    desc: &wgt::CommandBufferDescriptor<Option<&nsACString>>,
+    mut error_buf: ErrorBuffer,
+) {
+    let label = wgpu_string(desc.label);
+    let desc = desc.map_label(|_| label);
+    let (_, error) = gfx_select!(self_id => global.command_encoder_finish(self_id, &desc));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_encoder_drop(global: &Global, self_id: id::CommandEncoderId) {
+    gfx_select!(self_id => global.command_encoder_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_render_bundle_drop(global: &Global, self_id: id::RenderBundleId) {
+    gfx_select!(self_id => global.render_bundle_drop(self_id));
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_encoder_copy_texture_to_buffer(
+    global: &Global,
+    self_id: id::CommandEncoderId,
+    source: &wgc::command::ImageCopyTexture,
+    dst_buffer: wgc::id::BufferId,
+    dst_layout: &crate::ImageDataLayout,
+    size: &wgt::Extent3d,
+    mut error_buf: ErrorBuffer,
+) {
+    let destination = wgc::command::ImageCopyBuffer {
+        buffer: dst_buffer,
+        layout: dst_layout.into_wgt(),
+    };
+    if let Err(err) = gfx_select!(self_id => global.command_encoder_copy_texture_to_buffer(self_id, source, &destination, size))
+    {
+        error_buf.init(err);
+    }
+}
+
+/// # Safety
+///
+/// This function is unsafe as there is no guarantee that the given pointer is
+/// valid for `command_buffer_id_length` elements.
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_queue_submit(
+    global: &Global,
+    self_id: id::QueueId,
+    command_buffer_ids: *const id::CommandBufferId,
+    command_buffer_id_length: usize,
+    mut error_buf: ErrorBuffer,
+) -> u64 {
+    let command_buffers = slice::from_raw_parts(command_buffer_ids, command_buffer_id_length);
+    let result = gfx_select!(self_id => global.queue_submit(self_id, command_buffers));
+
+    match result {
+        Err(err) => {
+            error_buf.init(err);
+            return 0;
+        }
+        Ok(wrapped_index) => wrapped_index.index,
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_on_submitted_work_done(
+    global: &Global,
+    self_id: id::QueueId,
+    callback: wgc::device::queue::SubmittedWorkDoneClosureC,
+) {
+    gfx_select!(self_id => global.queue_on_submitted_work_done(self_id, wgc::device::queue::SubmittedWorkDoneClosure::from_c(callback))).unwrap();
+}
+
+/// # Safety
+///
+/// This function is unsafe as there is no guarantee that the given pointer is
+/// valid for `data_length` elements.
+#[no_mangle]
+pub unsafe extern "C" fn wgpu_server_queue_write_action(
+    global: &Global,
+    self_id: id::QueueId,
+    byte_buf: &ByteBuf,
+    data: *const u8,
+    data_length: usize,
+    mut error_buf: ErrorBuffer,
+) {
+    let action: QueueWriteAction = bincode::deserialize(byte_buf.as_slice()).unwrap();
+    let data = slice::from_raw_parts(data, data_length);
+    let result = match action {
+        QueueWriteAction::Buffer { dst, offset } => {
+            gfx_select!(self_id => global.queue_write_buffer(self_id, dst, offset, data))
+        }
+        QueueWriteAction::Texture { dst, layout, size } => {
+            gfx_select!(self_id => global.queue_write_texture(self_id, &dst, data, &layout, &size))
+        }
+    };
+    if let Err(err) = result {
+        error_buf.init(err);
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_bind_group_layout_drop(
+    global: &Global,
+    self_id: id::BindGroupLayoutId,
+) {
+    gfx_select!(self_id => global.bind_group_layout_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_pipeline_layout_drop(global: &Global, self_id: id::PipelineLayoutId) {
+    gfx_select!(self_id => global.pipeline_layout_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_bind_group_drop(global: &Global, self_id: id::BindGroupId) {
+    gfx_select!(self_id => global.bind_group_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_shader_module_drop(global: &Global, self_id: id::ShaderModuleId) {
+    gfx_select!(self_id => global.shader_module_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_compute_pipeline_drop(
+    global: &Global,
+    self_id: id::ComputePipelineId,
+) {
+    gfx_select!(self_id => global.compute_pipeline_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_render_pipeline_drop(global: &Global, self_id: id::RenderPipelineId) {
+    gfx_select!(self_id => global.render_pipeline_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_texture_destroy(global: &Global, self_id: id::TextureId) {
+    let _ = gfx_select!(self_id => global.texture_destroy(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_texture_drop(global: &Global, self_id: id::TextureId) {
+    gfx_select!(self_id => global.texture_drop(self_id, false));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_texture_view_drop(global: &Global, self_id: id::TextureViewId) {
+    gfx_select!(self_id => global.texture_view_drop(self_id, false)).unwrap();
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_sampler_drop(global: &Global, self_id: id::SamplerId) {
+    gfx_select!(self_id => global.sampler_drop(self_id));
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_compute_pipeline_get_bind_group_layout(
+    global: &Global,
+    self_id: id::ComputePipelineId,
+    index: u32,
+    assign_id: id::BindGroupLayoutId,
+    mut error_buf: ErrorBuffer,
+) {
+    let (_, error) = gfx_select!(self_id => global.compute_pipeline_get_bind_group_layout(self_id, index, Some(assign_id)));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn wgpu_server_render_pipeline_get_bind_group_layout(
+    global: &Global,
+    self_id: id::RenderPipelineId,
+    index: u32,
+    assign_id: id::BindGroupLayoutId,
+    mut error_buf: ErrorBuffer,
+) {
+    let (_, error) = gfx_select!(self_id => global.render_pipeline_get_bind_group_layout(self_id, index, Some(assign_id)));
+    if let Some(err) = error {
+        error_buf.init(err);
+    }
+}
+
+/// Encode the freeing of the selected ID into a byte buf.
+#[no_mangle]
+pub extern "C" fn wgpu_server_adapter_free(id: id::AdapterId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::Adapter(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_device_free(id: id::DeviceId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::Device(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_shader_module_free(
+    id: id::ShaderModuleId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::ShaderModule(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_pipeline_layout_free(
+    id: id::PipelineLayoutId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::PipelineLayout(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_bind_group_layout_free(
+    id: id::BindGroupLayoutId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::BindGroupLayout(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_bind_group_free(id: id::BindGroupId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::BindGroup(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_command_buffer_free(
+    id: id::CommandBufferId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::CommandBuffer(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_render_bundle_free(
+    id: id::RenderBundleId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::RenderBundle(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_render_pipeline_free(
+    id: id::RenderPipelineId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::RenderPipeline(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_compute_pipeline_free(
+    id: id::ComputePipelineId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::ComputePipeline(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_buffer_free(id: id::BufferId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::Buffer(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_texture_free(id: id::TextureId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::Texture(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_texture_view_free(
+    id: id::TextureViewId,
+    drop_byte_buf: &mut ByteBuf,
+) {
+    *drop_byte_buf = DropAction::TextureView(id).to_byte_buf();
+}
+#[no_mangle]
+pub extern "C" fn wgpu_server_sampler_free(id: id::SamplerId, drop_byte_buf: &mut ByteBuf) {
+    *drop_byte_buf = DropAction::Sampler(id).to_byte_buf();
+}