Adding upstream version 115.7.0esr.upstream/115.7.0esr

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

9 files changed, 1348 insertions, 0 deletions

diff --git a/third_party/rust/coremidi-sys/.cargo-checksum.json b/third_party/rust/coremidi-sys/.cargo-checksum.json
new file mode 100644
index 0000000000..da15f635ba
--- /dev/null
+++ b/third_party/rust/coremidi-sys/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.lock":"5f0a97e828227e612f93d11707b32067b20cac33e35645418dc88dd48e431db0","Cargo.toml":"6ec83d2168da5c4190a607fdb75a14b594fdc2d92bfaff4b8025385c414cda2a","LICENSE":"9e3de4600052da55698dfbcaa43a90324434d82efde92c7bf7d48010f9a579c7","README.md":"1fc9252739d1755842422b776d76f6bee502ac81c3f546d619a017246e5aeeba","build.rs":"73ba81bf5151f18b6c53acc94097cf2abb4c8c3832d1d0eaf661dab22342c1b7","examples/print_midi_device_count.rs":"24d69d14b80ad0d376e98914a3e1c5ffe27ae8bb8243704fe5bf72ea9297e21e","src/generated.rs":"93726f070406362aa1947848756d598307f6e80531cd961c679da2712ffc9628","src/lib.rs":"12e05f6db827a29821be82581b4fa5b9f64d2eca4ae7f95c0bcc433252be5165"},"package":"79a6deed0c97b2d40abbab77e4c97f81d71e162600423382c277dd640019116c"}
\ No newline at end of file
diff --git a/third_party/rust/coremidi-sys/Cargo.lock b/third_party/rust/coremidi-sys/Cargo.lock
new file mode 100644
index 0000000000..58f59780b8
--- /dev/null
+++ b/third_party/rust/coremidi-sys/Cargo.lock
@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+
+[[package]]
+name = "coremidi-sys"
+version = "3.1.0"
+dependencies = [
+ "core-foundation-sys",
+]
diff --git a/third_party/rust/coremidi-sys/Cargo.toml b/third_party/rust/coremidi-sys/Cargo.toml
new file mode 100644
index 0000000000..92dae60449
--- /dev/null
+++ b/third_party/rust/coremidi-sys/Cargo.toml
@@ -0,0 +1,24 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+name = "coremidi-sys"
+version = "3.1.0"
+authors = ["Jonas Klesy", "Patrick Reisert"]
+description = "Low-level FFI bindings for the CoreMIDI framework"
+documentation = "https://docs.rs/coremidi-sys"
+categories = ["external-ffi-bindings", "multimedia::audio"]
+license = "MIT"
+repository = "https://github.com/jonas-k/coremidi-sys"
+[package.metadata.docs.rs]
+default-target = "x86_64-apple-darwin"
+[target."cfg(any(target_os = \"macos\", target_os = \"ios\"))".dependencies.core-foundation-sys]
+version = "0.8.3"
diff --git a/third_party/rust/coremidi-sys/LICENSE b/third_party/rust/coremidi-sys/LICENSE
new file mode 100644
index 0000000000..9ace21803f
--- /dev/null
+++ b/third_party/rust/coremidi-sys/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Jonas Klesy
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/third_party/rust/coremidi-sys/README.md b/third_party/rust/coremidi-sys/README.md
new file mode 100644
index 0000000000..640c9cd841
--- /dev/null
+++ b/third_party/rust/coremidi-sys/README.md
@@ -0,0 +1,20 @@
+# coremidi-sys
+
+Low level Rust bindings for CoreMIDI
+
+`generated.rs` is generated with [bindgen](https://github.com/rust-lang/rust-bindgen) 0.59.2 using the following commands:
+
+```
+export FRAMEWORKS_DIR=$(xcrun --sdk macosx --show-sdk-path)/System/Library/Frameworks
+
+bindgen ${FRAMEWORKS_DIR}/CoreMIDI.framework/Headers/MIDIServices.h \
+    --whitelist-type "MIDI.*" --whitelist-function "MIDI.*"  --whitelist-var "kMIDI.*" \
+    --blacklist-type "(__)?CF.*" \
+    --constified-enum ".*" --no-prepend-enum-name \
+    --no-debug "MIDI(Event)?Packet.*" \
+    --no-copy "MIDI(Event)?Packet.*" \
+    --no-doc-comments \
+    -- -F ${FRAMEWORKS_DIR} > src/generated.rs
+```
+
+As of version 3 the minimum required Rust version is 1.51 due to the use of `std::ptr::addr_of`.
diff --git a/third_party/rust/coremidi-sys/build.rs b/third_party/rust/coremidi-sys/build.rs
new file mode 100644
index 0000000000..682c19b2a0
--- /dev/null
+++ b/third_party/rust/coremidi-sys/build.rs
@@ -0,0 +1,5 @@
+fn main() {
+    if std::env::var("TARGET").expect("cannot read TARGET environment variable").contains("apple") {
+        println!("cargo:rustc-link-lib=framework=CoreMIDI");
+    }
+}
\ No newline at end of file
diff --git a/third_party/rust/coremidi-sys/examples/print_midi_device_count.rs b/third_party/rust/coremidi-sys/examples/print_midi_device_count.rs
new file mode 100644
index 0000000000..fe88d8994f
--- /dev/null
+++ b/third_party/rust/coremidi-sys/examples/print_midi_device_count.rs
@@ -0,0 +1,10 @@
+extern crate coremidi_sys as cm;
+
+fn main()
+{
+    let src: u64 = unsafe { cm::MIDIGetNumberOfSources() };
+    let dest: u64 = unsafe { cm::MIDIGetNumberOfDestinations() };
+
+    println!("Number of MIDI sources: {}", src);
+    println!("Number of MIDI destinations: {}", dest);
+}
diff --git a/third_party/rust/coremidi-sys/src/generated.rs b/third_party/rust/coremidi-sys/src/generated.rs
new file mode 100644
index 0000000000..918912fcca
--- /dev/null
+++ b/third_party/rust/coremidi-sys/src/generated.rs
@@ -0,0 +1,1102 @@
+/* automatically generated by rust-bindgen 0.59.2 */
+
+pub type UInt8 = ::std::os::raw::c_uchar;
+pub type UInt16 = ::std::os::raw::c_ushort;
+pub type UInt32 = ::std::os::raw::c_uint;
+pub type SInt32 = ::std::os::raw::c_int;
+pub type UInt64 = ::std::os::raw::c_ulonglong;
+pub type OSStatus = SInt32;
+pub type ByteCount = ::std::os::raw::c_ulong;
+pub type ItemCount = ::std::os::raw::c_ulong;
+pub type Boolean = ::std::os::raw::c_uchar;
+pub type Byte = UInt8;
+pub const kMIDIInvalidClient: ::std::os::raw::c_int = -10830;
+pub const kMIDIInvalidPort: ::std::os::raw::c_int = -10831;
+pub const kMIDIWrongEndpointType: ::std::os::raw::c_int = -10832;
+pub const kMIDINoConnection: ::std::os::raw::c_int = -10833;
+pub const kMIDIUnknownEndpoint: ::std::os::raw::c_int = -10834;
+pub const kMIDIUnknownProperty: ::std::os::raw::c_int = -10835;
+pub const kMIDIWrongPropertyType: ::std::os::raw::c_int = -10836;
+pub const kMIDINoCurrentSetup: ::std::os::raw::c_int = -10837;
+pub const kMIDIMessageSendErr: ::std::os::raw::c_int = -10838;
+pub const kMIDIServerStartErr: ::std::os::raw::c_int = -10839;
+pub const kMIDISetupFormatErr: ::std::os::raw::c_int = -10840;
+pub const kMIDIWrongThread: ::std::os::raw::c_int = -10841;
+pub const kMIDIObjectNotFound: ::std::os::raw::c_int = -10842;
+pub const kMIDIIDNotUnique: ::std::os::raw::c_int = -10843;
+pub const kMIDINotPermitted: ::std::os::raw::c_int = -10844;
+pub const kMIDIUnknownError: ::std::os::raw::c_int = -10845;
+pub type _bindgen_ty_63 = ::std::os::raw::c_int;
+pub type MIDIObjectRef = UInt32;
+pub type MIDIClientRef = MIDIObjectRef;
+pub type MIDIPortRef = MIDIObjectRef;
+pub type MIDIDeviceRef = MIDIObjectRef;
+pub type MIDIEntityRef = MIDIObjectRef;
+pub type MIDIEndpointRef = MIDIObjectRef;
+pub type MIDITimeStamp = UInt64;
+pub type MIDIObjectType = SInt32;
+pub const kMIDIObjectType_Other: ::std::os::raw::c_int = -1;
+pub const kMIDIObjectType_Device: ::std::os::raw::c_int = 0;
+pub const kMIDIObjectType_Entity: ::std::os::raw::c_int = 1;
+pub const kMIDIObjectType_Source: ::std::os::raw::c_int = 2;
+pub const kMIDIObjectType_Destination: ::std::os::raw::c_int = 3;
+pub const kMIDIObjectType_ExternalDevice: ::std::os::raw::c_int = 16;
+pub const kMIDIObjectType_ExternalEntity: ::std::os::raw::c_int = 17;
+pub const kMIDIObjectType_ExternalSource: ::std::os::raw::c_int = 18;
+pub const kMIDIObjectType_ExternalDestination: ::std::os::raw::c_int = 19;
+pub type _bindgen_ty_64 = ::std::os::raw::c_int;
+pub const kMIDIObjectType_ExternalMask: MIDIObjectType = 16;
+pub type MIDIUniqueID = SInt32;
+pub const kMIDIInvalidUniqueID: ::std::os::raw::c_uint = 0;
+pub type _bindgen_ty_65 = ::std::os::raw::c_uint;
+pub type MIDIProtocolID = SInt32;
+pub const kMIDIProtocol_1_0: ::std::os::raw::c_uint = 1;
+pub const kMIDIProtocol_2_0: ::std::os::raw::c_uint = 2;
+pub type _bindgen_ty_66 = ::std::os::raw::c_uint;
+pub type MIDINotifyProc = ::std::option::Option<
+    unsafe extern "C" fn(message: *const MIDINotification, refCon: *mut ::std::os::raw::c_void),
+>;
+pub type MIDINotifyBlock = *mut ::std::os::raw::c_void;
+pub type MIDIReceiveBlock = *mut ::std::os::raw::c_void;
+pub type MIDIReadProc = ::std::option::Option<
+    unsafe extern "C" fn(
+        pktlist: *const MIDIPacketList,
+        readProcRefCon: *mut ::std::os::raw::c_void,
+        srcConnRefCon: *mut ::std::os::raw::c_void,
+    ),
+>;
+pub type MIDIReadBlock = *mut ::std::os::raw::c_void;
+pub type MIDICompletionProc =
+    ::std::option::Option<unsafe extern "C" fn(request: *mut MIDISysexSendRequest)>;
+#[repr(C, packed(4))]
+pub struct MIDIEventPacket {
+    pub timeStamp: MIDITimeStamp,
+    pub wordCount: UInt32,
+    pub words: [UInt32; 64usize],
+}
+#[test]
+fn bindgen_test_layout_MIDIEventPacket() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIEventPacket>(),
+        268usize,
+        concat!("Size of: ", stringify!(MIDIEventPacket))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIEventPacket>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIEventPacket))
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventPacket>())).timeStamp as *const _ as usize },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventPacket),
+            "::",
+            stringify!(timeStamp)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventPacket>())).wordCount as *const _ as usize },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventPacket),
+            "::",
+            stringify!(wordCount)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventPacket>())).words as *const _ as usize },
+        12usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventPacket),
+            "::",
+            stringify!(words)
+        )
+    );
+}
+#[repr(C)]
+pub struct MIDIEventList {
+    pub protocol: MIDIProtocolID,
+    pub numPackets: UInt32,
+    pub packet: [MIDIEventPacket; 1usize],
+}
+#[test]
+fn bindgen_test_layout_MIDIEventList() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIEventList>(),
+        276usize,
+        concat!("Size of: ", stringify!(MIDIEventList))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIEventList>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIEventList))
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventList>())).protocol as *const _ as usize },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventList),
+            "::",
+            stringify!(protocol)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventList>())).numPackets as *const _ as usize },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventList),
+            "::",
+            stringify!(numPackets)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIEventList>())).packet as *const _ as usize },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIEventList),
+            "::",
+            stringify!(packet)
+        )
+    );
+}
+#[repr(C, packed(4))]
+pub struct MIDIPacket {
+    pub timeStamp: MIDITimeStamp,
+    pub length: UInt16,
+    pub data: [Byte; 256usize],
+}
+#[test]
+fn bindgen_test_layout_MIDIPacket() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIPacket>(),
+        268usize,
+        concat!("Size of: ", stringify!(MIDIPacket))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIPacket>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIPacket))
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIPacket>())).timeStamp as *const _ as usize },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIPacket),
+            "::",
+            stringify!(timeStamp)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIPacket>())).length as *const _ as usize },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIPacket),
+            "::",
+            stringify!(length)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIPacket>())).data as *const _ as usize },
+        10usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIPacket),
+            "::",
+            stringify!(data)
+        )
+    );
+}
+#[repr(C)]
+pub struct MIDIPacketList {
+    pub numPackets: UInt32,
+    pub packet: [MIDIPacket; 1usize],
+}
+#[test]
+fn bindgen_test_layout_MIDIPacketList() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIPacketList>(),
+        272usize,
+        concat!("Size of: ", stringify!(MIDIPacketList))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIPacketList>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIPacketList))
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIPacketList>())).numPackets as *const _ as usize },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIPacketList),
+            "::",
+            stringify!(numPackets)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDIPacketList>())).packet as *const _ as usize },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIPacketList),
+            "::",
+            stringify!(packet)
+        )
+    );
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct MIDISysexSendRequest {
+    pub destination: MIDIEndpointRef,
+    pub data: *const Byte,
+    pub bytesToSend: UInt32,
+    pub complete: Boolean,
+    pub reserved: [Byte; 3usize],
+    pub completionProc: MIDICompletionProc,
+    pub completionRefCon: *mut ::std::os::raw::c_void,
+}
+#[test]
+fn bindgen_test_layout_MIDISysexSendRequest() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDISysexSendRequest>(),
+        40usize,
+        concat!("Size of: ", stringify!(MIDISysexSendRequest))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDISysexSendRequest>(),
+        8usize,
+        concat!("Alignment of ", stringify!(MIDISysexSendRequest))
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDISysexSendRequest>())).destination as *const _ as usize
+        },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(destination)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDISysexSendRequest>())).data as *const _ as usize },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(data)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDISysexSendRequest>())).bytesToSend as *const _ as usize
+        },
+        16usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(bytesToSend)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDISysexSendRequest>())).complete as *const _ as usize },
+        20usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(complete)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDISysexSendRequest>())).reserved as *const _ as usize },
+        21usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(reserved)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDISysexSendRequest>())).completionProc as *const _ as usize
+        },
+        24usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(completionProc)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDISysexSendRequest>())).completionRefCon as *const _ as usize
+        },
+        32usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDISysexSendRequest),
+            "::",
+            stringify!(completionRefCon)
+        )
+    );
+}
+pub type MIDINotificationMessageID = SInt32;
+pub const kMIDIMsgSetupChanged: ::std::os::raw::c_uint = 1;
+pub const kMIDIMsgObjectAdded: ::std::os::raw::c_uint = 2;
+pub const kMIDIMsgObjectRemoved: ::std::os::raw::c_uint = 3;
+pub const kMIDIMsgPropertyChanged: ::std::os::raw::c_uint = 4;
+pub const kMIDIMsgThruConnectionsChanged: ::std::os::raw::c_uint = 5;
+pub const kMIDIMsgSerialPortOwnerChanged: ::std::os::raw::c_uint = 6;
+pub const kMIDIMsgIOError: ::std::os::raw::c_uint = 7;
+pub type _bindgen_ty_67 = ::std::os::raw::c_uint;
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct MIDINotification {
+    pub messageID: MIDINotificationMessageID,
+    pub messageSize: UInt32,
+}
+#[test]
+fn bindgen_test_layout_MIDINotification() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDINotification>(),
+        8usize,
+        concat!("Size of: ", stringify!(MIDINotification))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDINotification>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDINotification))
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDINotification>())).messageID as *const _ as usize },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDINotification),
+            "::",
+            stringify!(messageID)
+        )
+    );
+    assert_eq!(
+        unsafe { &(*(::std::ptr::null::<MIDINotification>())).messageSize as *const _ as usize },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDINotification),
+            "::",
+            stringify!(messageSize)
+        )
+    );
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct MIDIObjectAddRemoveNotification {
+    pub messageID: MIDINotificationMessageID,
+    pub messageSize: UInt32,
+    pub parent: MIDIObjectRef,
+    pub parentType: MIDIObjectType,
+    pub child: MIDIObjectRef,
+    pub childType: MIDIObjectType,
+}
+#[test]
+fn bindgen_test_layout_MIDIObjectAddRemoveNotification() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIObjectAddRemoveNotification>(),
+        24usize,
+        concat!("Size of: ", stringify!(MIDIObjectAddRemoveNotification))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIObjectAddRemoveNotification>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIObjectAddRemoveNotification))
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).messageID as *const _
+                as usize
+        },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(messageID)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).messageSize as *const _
+                as usize
+        },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(messageSize)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).parent as *const _ as usize
+        },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(parent)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).parentType as *const _
+                as usize
+        },
+        12usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(parentType)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).child as *const _ as usize
+        },
+        16usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(child)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectAddRemoveNotification>())).childType as *const _
+                as usize
+        },
+        20usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectAddRemoveNotification),
+            "::",
+            stringify!(childType)
+        )
+    );
+}
+#[repr(C)]
+pub struct MIDIObjectPropertyChangeNotification {
+    pub messageID: MIDINotificationMessageID,
+    pub messageSize: UInt32,
+    pub object: MIDIObjectRef,
+    pub objectType: MIDIObjectType,
+    pub propertyName: CFStringRef,
+}
+#[test]
+fn bindgen_test_layout_MIDIObjectPropertyChangeNotification() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIObjectPropertyChangeNotification>(),
+        24usize,
+        concat!(
+            "Size of: ",
+            stringify!(MIDIObjectPropertyChangeNotification)
+        )
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIObjectPropertyChangeNotification>(),
+        8usize,
+        concat!(
+            "Alignment of ",
+            stringify!(MIDIObjectPropertyChangeNotification)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectPropertyChangeNotification>())).messageID as *const _
+                as usize
+        },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectPropertyChangeNotification),
+            "::",
+            stringify!(messageID)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectPropertyChangeNotification>())).messageSize as *const _
+                as usize
+        },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectPropertyChangeNotification),
+            "::",
+            stringify!(messageSize)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectPropertyChangeNotification>())).object as *const _
+                as usize
+        },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectPropertyChangeNotification),
+            "::",
+            stringify!(object)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectPropertyChangeNotification>())).objectType as *const _
+                as usize
+        },
+        12usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectPropertyChangeNotification),
+            "::",
+            stringify!(objectType)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIObjectPropertyChangeNotification>())).propertyName
+                as *const _ as usize
+        },
+        16usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIObjectPropertyChangeNotification),
+            "::",
+            stringify!(propertyName)
+        )
+    );
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct MIDIIOErrorNotification {
+    pub messageID: MIDINotificationMessageID,
+    pub messageSize: UInt32,
+    pub driverDevice: MIDIDeviceRef,
+    pub errorCode: OSStatus,
+}
+#[test]
+fn bindgen_test_layout_MIDIIOErrorNotification() {
+    assert_eq!(
+        ::std::mem::size_of::<MIDIIOErrorNotification>(),
+        16usize,
+        concat!("Size of: ", stringify!(MIDIIOErrorNotification))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<MIDIIOErrorNotification>(),
+        4usize,
+        concat!("Alignment of ", stringify!(MIDIIOErrorNotification))
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIIOErrorNotification>())).messageID as *const _ as usize
+        },
+        0usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIIOErrorNotification),
+            "::",
+            stringify!(messageID)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIIOErrorNotification>())).messageSize as *const _ as usize
+        },
+        4usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIIOErrorNotification),
+            "::",
+            stringify!(messageSize)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIIOErrorNotification>())).driverDevice as *const _ as usize
+        },
+        8usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIIOErrorNotification),
+            "::",
+            stringify!(driverDevice)
+        )
+    );
+    assert_eq!(
+        unsafe {
+            &(*(::std::ptr::null::<MIDIIOErrorNotification>())).errorCode as *const _ as usize
+        },
+        12usize,
+        concat!(
+            "Offset of field: ",
+            stringify!(MIDIIOErrorNotification),
+            "::",
+            stringify!(errorCode)
+        )
+    );
+}
+extern "C" {
+    pub static kMIDIPropertyName: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyManufacturer: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyModel: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyUniqueID: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyDeviceID: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceiveChannels: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitChannels: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyMaxSysExSpeed: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyAdvanceScheduleTimeMuSec: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsEmbeddedEntity: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsBroadcast: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertySingleRealtimeEntity: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyConnectionUniqueID: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyOffline: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyPrivate: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyDriverOwner: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyFactoryPatchNameFile: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyUserPatchNameFile: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyNameConfiguration: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyNameConfigurationDictionary: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyImage: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyDriverVersion: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertySupportsGeneralMIDI: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertySupportsMMC: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyCanRoute: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesClock: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesMTC: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesNotes: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesProgramChanges: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesBankSelectMSB: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyReceivesBankSelectLSB: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsClock: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsMTC: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsNotes: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsProgramChanges: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsBankSelectMSB: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyTransmitsBankSelectLSB: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyPanDisruptsStereo: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsSampler: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsDrumMachine: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsMixer: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyIsEffectUnit: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyMaxReceiveChannels: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyMaxTransmitChannels: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyDriverDeviceEditorApp: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertySupportsShowControl: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyDisplayName: CFStringRef;
+}
+extern "C" {
+    pub static kMIDIPropertyProtocolID: CFStringRef;
+}
+extern "C" {
+    pub fn MIDIClientCreate(
+        name: CFStringRef,
+        notifyProc: MIDINotifyProc,
+        notifyRefCon: *mut ::std::os::raw::c_void,
+        outClient: *mut MIDIClientRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIClientCreateWithBlock(
+        name: CFStringRef,
+        outClient: *mut MIDIClientRef,
+        notifyBlock: MIDINotifyBlock,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIClientDispose(client: MIDIClientRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIInputPortCreateWithProtocol(
+        client: MIDIClientRef,
+        portName: CFStringRef,
+        protocol: MIDIProtocolID,
+        outPort: *mut MIDIPortRef,
+        receiveBlock: MIDIReceiveBlock,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIInputPortCreate(
+        client: MIDIClientRef,
+        portName: CFStringRef,
+        readProc: MIDIReadProc,
+        refCon: *mut ::std::os::raw::c_void,
+        outPort: *mut MIDIPortRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIInputPortCreateWithBlock(
+        client: MIDIClientRef,
+        portName: CFStringRef,
+        outPort: *mut MIDIPortRef,
+        readBlock: MIDIReadBlock,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIOutputPortCreate(
+        client: MIDIClientRef,
+        portName: CFStringRef,
+        outPort: *mut MIDIPortRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIPortDispose(port: MIDIPortRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIPortConnectSource(
+        port: MIDIPortRef,
+        source: MIDIEndpointRef,
+        connRefCon: *mut ::std::os::raw::c_void,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIPortDisconnectSource(port: MIDIPortRef, source: MIDIEndpointRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIGetNumberOfDevices() -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIGetDevice(deviceIndex0: ItemCount) -> MIDIDeviceRef;
+}
+extern "C" {
+    pub fn MIDIDeviceGetNumberOfEntities(device: MIDIDeviceRef) -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIDeviceGetEntity(device: MIDIDeviceRef, entityIndex0: ItemCount) -> MIDIEntityRef;
+}
+extern "C" {
+    pub fn MIDIEntityGetNumberOfSources(entity: MIDIEntityRef) -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIEntityGetSource(entity: MIDIEntityRef, sourceIndex0: ItemCount) -> MIDIEndpointRef;
+}
+extern "C" {
+    pub fn MIDIEntityGetNumberOfDestinations(entity: MIDIEntityRef) -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIEntityGetDestination(
+        entity: MIDIEntityRef,
+        destIndex0: ItemCount,
+    ) -> MIDIEndpointRef;
+}
+extern "C" {
+    pub fn MIDIEntityGetDevice(inEntity: MIDIEntityRef, outDevice: *mut MIDIDeviceRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIGetNumberOfSources() -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIGetSource(sourceIndex0: ItemCount) -> MIDIEndpointRef;
+}
+extern "C" {
+    pub fn MIDIGetNumberOfDestinations() -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIGetDestination(destIndex0: ItemCount) -> MIDIEndpointRef;
+}
+extern "C" {
+    pub fn MIDIEndpointGetEntity(
+        inEndpoint: MIDIEndpointRef,
+        outEntity: *mut MIDIEntityRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIDestinationCreateWithProtocol(
+        client: MIDIClientRef,
+        name: CFStringRef,
+        protocol: MIDIProtocolID,
+        outDest: *mut MIDIEndpointRef,
+        readBlock: MIDIReceiveBlock,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIDestinationCreate(
+        client: MIDIClientRef,
+        name: CFStringRef,
+        readProc: MIDIReadProc,
+        refCon: *mut ::std::os::raw::c_void,
+        outDest: *mut MIDIEndpointRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIDestinationCreateWithBlock(
+        client: MIDIClientRef,
+        name: CFStringRef,
+        outDest: *mut MIDIEndpointRef,
+        readBlock: MIDIReadBlock,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDISourceCreateWithProtocol(
+        client: MIDIClientRef,
+        name: CFStringRef,
+        protocol: MIDIProtocolID,
+        outSrc: *mut MIDIEndpointRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDISourceCreate(
+        client: MIDIClientRef,
+        name: CFStringRef,
+        outSrc: *mut MIDIEndpointRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIEndpointDispose(endpt: MIDIEndpointRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIGetNumberOfExternalDevices() -> ItemCount;
+}
+extern "C" {
+    pub fn MIDIGetExternalDevice(deviceIndex0: ItemCount) -> MIDIDeviceRef;
+}
+extern "C" {
+    pub fn MIDIObjectGetIntegerProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        outValue: *mut SInt32,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectSetIntegerProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        value: SInt32,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectGetStringProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        str_: *mut CFStringRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectSetStringProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        str_: CFStringRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectGetDataProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        outData: *mut CFDataRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectSetDataProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        data: CFDataRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectGetDictionaryProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        outDict: *mut CFDictionaryRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectSetDictionaryProperty(
+        obj: MIDIObjectRef,
+        propertyID: CFStringRef,
+        dict: CFDictionaryRef,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectGetProperties(
+        obj: MIDIObjectRef,
+        outProperties: *mut CFPropertyListRef,
+        deep: Boolean,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectRemoveProperty(obj: MIDIObjectRef, propertyID: CFStringRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIObjectFindByUniqueID(
+        inUniqueID: MIDIUniqueID,
+        outObject: *mut MIDIObjectRef,
+        outObjectType: *mut MIDIObjectType,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDISendEventList(
+        port: MIDIPortRef,
+        dest: MIDIEndpointRef,
+        evtlist: *const MIDIEventList,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDISend(
+        port: MIDIPortRef,
+        dest: MIDIEndpointRef,
+        pktlist: *const MIDIPacketList,
+    ) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDISendSysex(request: *mut MIDISysexSendRequest) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIReceivedEventList(src: MIDIEndpointRef, evtlist: *const MIDIEventList) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIReceived(src: MIDIEndpointRef, pktlist: *const MIDIPacketList) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIFlushOutput(dest: MIDIEndpointRef) -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIRestart() -> OSStatus;
+}
+extern "C" {
+    pub fn MIDIEventListInit(
+        evtlist: *mut MIDIEventList,
+        protocol: MIDIProtocolID,
+    ) -> *mut MIDIEventPacket;
+}
+extern "C" {
+    pub fn MIDIEventListAdd(
+        evtlist: *mut MIDIEventList,
+        listSize: ByteCount,
+        curPacket: *mut MIDIEventPacket,
+        time: MIDITimeStamp,
+        wordCount: ByteCount,
+        words: *const UInt32,
+    ) -> *mut MIDIEventPacket;
+}
+extern "C" {
+    pub fn MIDIPacketListInit(pktlist: *mut MIDIPacketList) -> *mut MIDIPacket;
+}
+extern "C" {
+    pub fn MIDIPacketListAdd(
+        pktlist: *mut MIDIPacketList,
+        listSize: ByteCount,
+        curPacket: *mut MIDIPacket,
+        time: MIDITimeStamp,
+        nData: ByteCount,
+        data: *const Byte,
+    ) -> *mut MIDIPacket;
+}
diff --git a/third_party/rust/coremidi-sys/src/lib.rs b/third_party/rust/coremidi-sys/src/lib.rs
new file mode 100644
index 0000000000..60b8945a8e
--- /dev/null
+++ b/third_party/rust/coremidi-sys/src/lib.rs
@@ -0,0 +1,149 @@
+#![cfg(any(target_os = "macos", target_os = "ios"))]
+
+#![allow(non_snake_case, non_upper_case_globals, non_camel_case_types)]
+
+extern crate core_foundation_sys;
+
+use core_foundation_sys::string::*;
+use core_foundation_sys::data::*;
+use core_foundation_sys::dictionary::*;
+use core_foundation_sys::propertylist::*;
+
+use std::{ptr, mem};
+
+include!("generated.rs");
+
+#[inline]
+pub unsafe fn MIDIPacketNext(pkt: *const MIDIPacket) -> *const MIDIPacket {
+    // Get pointer to potentially unaligned data without triggering undefined behavior
+    // addr_of does not require creating an intermediate reference to unaligned data.
+    let ptr = ptr::addr_of!((*pkt).data) as *const u8;
+    let offset = (*pkt).length as isize;
+    if cfg!(any(target_arch = "arm", target_arch = "aarch64")) {
+        // MIDIPacket must be 4-byte aligned on ARM
+        ((ptr.offset(offset + 3) as usize) & !(3usize)) as *const MIDIPacket
+    } else {
+        ptr.offset(offset) as *const MIDIPacket
+    }
+}
+
+#[inline]
+pub unsafe fn MIDIEventPacketNext(pkt: *const MIDIEventPacket) -> *const MIDIEventPacket {
+    // Get pointer to potentially unaligned data without triggering undefined behavior
+    // addr_of does not require creating an intermediate reference to unaligned data.
+    let ptr = ptr::addr_of!((*pkt).words) as *const u8;
+    let offset = (((*pkt).wordCount as usize) * mem::size_of::<u32>()) as isize;
+    if cfg!(any(target_arch = "arm", target_arch = "aarch64")) {
+        // MIDIEventPacket must be 4-byte aligned on ARM
+        ((ptr.offset(offset + 3) as usize) & !(3usize)) as *const MIDIEventPacket
+    } else {
+        ptr.offset(offset) as *const MIDIEventPacket
+    }
+}
+
+#[allow(dead_code)]
+mod static_test {
+    /// Statically assert the correct size of `MIDIPacket` and `MIDIPacketList`,
+    /// which require non-default alignment.
+    unsafe fn assert_sizes() {
+        use super::{MIDIPacket, MIDIPacketList};
+        use std::mem::{transmute, zeroed};
+
+        let p: MIDIPacket = zeroed();
+        transmute::<_, [u8; 268]>(p);
+
+        let p: MIDIPacketList = zeroed();
+        transmute::<_, [u8; 272]>(p);
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn midi_packet_next() {
+        const BUFFER_SIZE: usize = 65536;
+        let buffer: &mut [u8] = &mut [0; BUFFER_SIZE];
+        let pkt_list_ptr = buffer.as_mut_ptr() as *mut MIDIPacketList;
+
+        let packets = vec![
+            (1, vec![0x90, 0x40, 0x7f]), // tuple of (time, [midi bytes])
+            (2, vec![0x90, 0x41, 0x7f]),
+        ];
+
+        unsafe {
+            let mut pkt_ptr = MIDIPacketListInit(pkt_list_ptr);
+            for pkt in &packets {
+                pkt_ptr = MIDIPacketListAdd(
+                    pkt_list_ptr,
+                    BUFFER_SIZE as ByteCount,
+                    pkt_ptr,
+                    pkt.0,
+                    pkt.1.len() as ByteCount,
+                    pkt.1.as_ptr(),
+                );
+                assert!(!pkt_ptr.is_null());
+            }
+        }
+
+        unsafe {
+            let first_packet = &(*pkt_list_ptr).packet as *const MIDIPacket; // get pointer to first midi packet in the list
+            let len = (*first_packet).length as usize;
+            assert_eq!(
+                &(*first_packet).data[0..len],
+                &[0x90, 0x40, 0x7f]
+            );
+
+            let second_packet = MIDIPacketNext(first_packet);
+            let len = (*second_packet).length as usize;
+            assert_eq!(
+                &(*second_packet).data[0..len],
+                &[0x90, 0x41, 0x7f]
+            );
+        }
+    }
+
+    #[test]
+    fn midi_event_packet_next() {
+        const BUFFER_SIZE: usize = 65536;
+        let buffer: &mut [u8] = &mut [0; BUFFER_SIZE];
+        let pkt_list_ptr = buffer.as_mut_ptr() as *mut MIDIEventList;
+
+        let packets = vec![
+            (1, vec![10u32, 20]), // tuple of (time, [midi words])
+            (2, vec![30u32, 40, 50]),
+        ];
+
+        unsafe {
+            let mut pkt_ptr = MIDIEventListInit(pkt_list_ptr, kMIDIProtocol_2_0 as MIDIProtocolID);
+            for pkt in &packets {
+                pkt_ptr = MIDIEventListAdd(
+                    pkt_list_ptr,
+                    BUFFER_SIZE as ByteCount,
+                    pkt_ptr,
+                    pkt.0,
+                    pkt.1.len() as ByteCount,
+                    pkt.1.as_ptr(),
+                );
+                assert!(!pkt_ptr.is_null());
+            }
+        }
+
+        unsafe {
+            let first_packet = &(*pkt_list_ptr).packet as *const MIDIEventPacket; // get pointer to first midi packet in the list
+            let len = (*first_packet).wordCount as usize;
+            assert_eq!(
+                &(*first_packet).words[0..len],
+                &[10, 20]
+            );
+
+            let second_packet = MIDIEventPacketNext(first_packet);
+            let len = (*second_packet).wordCount as usize;
+            assert_eq!(
+                &(*second_packet).words[0..len],
+                &[30, 40, 50]
+            );
+        }
+    }
+}