use callbacks::cubeb_device_collection_changed_callback;
use context::cubeb;
use std::ffi::CStr;
use std::os::raw::{c_char, c_int, c_uint, c_void};
use std::{fmt, mem, ptr};
cubeb_enum! {
pub enum cubeb_device_fmt {
CUBEB_DEVICE_FMT_S16LE = 0x0010,
CUBEB_DEVICE_FMT_S16BE = 0x0020,
CUBEB_DEVICE_FMT_F32LE = 0x1000,
CUBEB_DEVICE_FMT_F32BE = 0x2000,
}
}
#[cfg(target_endian = "big")]
pub const CUBEB_DEVICE_FMT_S16NE: cubeb_device_fmt = CUBEB_DEVICE_FMT_S16BE;
#[cfg(target_endian = "big")]
pub const CUBEB_DEVICE_FMT_F32NE: cubeb_device_fmt = CUBEB_DEVICE_FMT_F32BE;
#[cfg(target_endian = "little")]
pub const CUBEB_DEVICE_FMT_S16NE: cubeb_device_fmt = CUBEB_DEVICE_FMT_S16LE;
#[cfg(target_endian = "little")]
pub const CUBEB_DEVICE_FMT_F32NE: cubeb_device_fmt = CUBEB_DEVICE_FMT_F32LE;
pub const CUBEB_DEVICE_FMT_S16_MASK: cubeb_device_fmt =
CUBEB_DEVICE_FMT_S16LE | CUBEB_DEVICE_FMT_S16BE;
pub const CUBEB_DEVICE_FMT_F32_MASK: cubeb_device_fmt =
CUBEB_DEVICE_FMT_F32LE | CUBEB_DEVICE_FMT_F32BE;
pub const CUBEB_DEVICE_FMT_ALL: cubeb_device_fmt =
CUBEB_DEVICE_FMT_S16_MASK | CUBEB_DEVICE_FMT_F32_MASK;
fn fmt_device_fmt(f: &cubeb_device_fmt) -> &'static str {
match *f {
CUBEB_DEVICE_FMT_S16LE => "S16LE",
CUBEB_DEVICE_FMT_S16BE => "S16BE",
CUBEB_DEVICE_FMT_F32LE => "F32LE",
CUBEB_DEVICE_FMT_F32BE => "F32BE",
CUBEB_DEVICE_FMT_S16_MASK => "S16LE | S16BE",
CUBEB_DEVICE_FMT_F32_MASK => "F32LE | F32BE",
CUBEB_DEVICE_FMT_ALL => "S16LE | S16BE | F32LE | F32BE",
_ => "Unexpected device format",
}
}
cubeb_enum! {
pub enum cubeb_device_pref {
CUBEB_DEVICE_PREF_NONE = 0x00,
CUBEB_DEVICE_PREF_MULTIMEDIA = 0x01,
CUBEB_DEVICE_PREF_VOICE = 0x02,
CUBEB_DEVICE_PREF_NOTIFICATION = 0x04,
CUBEB_DEVICE_PREF_ALL = 0x0F,
}
}
fn fmt_device_pref(p: &cubeb_device_pref) -> &'static str {
match *p {
CUBEB_DEVICE_PREF_NONE => "None",
CUBEB_DEVICE_PREF_MULTIMEDIA => "Multimedia",
CUBEB_DEVICE_PREF_VOICE => "Voice",
CUBEB_DEVICE_PREF_NOTIFICATION => "Notification",
CUBEB_DEVICE_PREF_ALL => "All",
_ => "Unexpected",
}
}
cubeb_enum! {
pub enum cubeb_device_state {
CUBEB_DEVICE_STATE_DISABLED,
CUBEB_DEVICE_STATE_UNPLUGGED,
CUBEB_DEVICE_STATE_ENABLED,
}
}
fn fmt_device_state(s: &cubeb_device_state) -> &'static str {
match *s {
CUBEB_DEVICE_STATE_DISABLED => "Disabled",
CUBEB_DEVICE_STATE_UNPLUGGED => "Unplugged",
CUBEB_DEVICE_STATE_ENABLED => "Enabled",
_ => "Unexpected",
}
}
cubeb_enum! {
pub enum cubeb_device_type {
CUBEB_DEVICE_TYPE_UNKNOWN,
CUBEB_DEVICE_TYPE_INPUT,
CUBEB_DEVICE_TYPE_OUTPUT,
}
}
fn fmt_device_type(t: &cubeb_device_type) -> &'static str {
match *t {
CUBEB_DEVICE_TYPE_UNKNOWN => "Unknown",
CUBEB_DEVICE_TYPE_INPUT => "Input",
CUBEB_DEVICE_TYPE_OUTPUT => "Output",
t if t == CUBEB_DEVICE_TYPE_INPUT | CUBEB_DEVICE_TYPE_OUTPUT => "Input+Output",
_ => "Unexpected",
}
}
pub type cubeb_devid = *const c_void;
#[repr(C)]
pub struct cubeb_device {
pub output_name: *mut c_char,
pub input_name: *mut c_char,
}
impl Default for cubeb_device {
fn default() -> Self {
unsafe { mem::zeroed() }
}
}
impl fmt::Debug for cubeb_device {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("cubeb_device")
.field("output_name", &self.output_name)
.field("input_name", &self.input_name)
.finish()
}
}
#[repr(C)]
pub struct cubeb_device_collection {
pub device: *mut cubeb_device_info,
pub count: usize,
}
impl Default for cubeb_device_collection {
fn default() -> Self {
unsafe { mem::zeroed() }
}
}
impl fmt::Debug for cubeb_device_collection {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let devices = ptr::slice_from_raw_parts(self.device, self.count);
let devices = unsafe { &*devices };
let mut dbg = f.debug_list();
for d in devices {
dbg.entry(d);
}
dbg.finish()
}
}
#[repr(C)]
pub struct cubeb_device_info {
pub devid: cubeb_devid,
pub device_id: *const c_char,
pub friendly_name: *const c_char,
pub group_id: *const c_char,
pub vendor_name: *const c_char,
pub device_type: cubeb_device_type,
pub state: cubeb_device_state,
pub preferred: cubeb_device_pref,
pub format: cubeb_device_fmt,
pub default_format: cubeb_device_fmt,
pub max_channels: c_uint,
pub default_rate: c_uint,
pub max_rate: c_uint,
pub min_rate: c_uint,
pub latency_lo: c_uint,
pub latency_hi: c_uint,
}
impl Default for cubeb_device_info {
fn default() -> Self {
unsafe { mem::zeroed() }
}
}
impl fmt::Debug for cubeb_device_info {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fn optional_c_str(c_str: *const c_char) -> Option<*const c_char> {
(unsafe { c_str.as_ref() }).map(ptr::from_ref)
}
f.debug_struct("cubeb_device_info")
.field("devid", &(self.devid as u32))
.field(
"device_id",
&optional_c_str(self.device_id).map(|p| unsafe { CStr::from_ptr(p) }),
)
.field(
"friendly_name",
&optional_c_str(self.friendly_name).map(|p| unsafe { CStr::from_ptr(p) }),
)
.field(
"group_id",
&optional_c_str(self.group_id).map(|p| unsafe { CStr::from_ptr(p) }),
)
.field(
"vendor_name",
&optional_c_str(self.vendor_name).map(|p| unsafe { CStr::from_ptr(p) }),
)
.field("device_type", &fmt_device_type(&self.device_type))
.field("state", &fmt_device_state(&self.state))
.field("preferred", &fmt_device_pref(&self.preferred))
.field("format", &fmt_device_fmt(&self.format))
.field("default_format", &fmt_device_fmt(&self.default_format))
.field("max_channels", &self.max_channels)
.field("default_rate", &self.default_rate)
.field("max_rate", &self.max_rate)
.field("min_rate", &self.min_rate)
.field("latency_lo", &self.latency_lo)
.field("latency_hi", &self.latency_hi)
.finish()
}
}
extern "C" {
pub fn cubeb_enumerate_devices(
context: *mut cubeb,
devtype: cubeb_device_type,
collection: *mut cubeb_device_collection,
) -> c_int;
pub fn cubeb_device_collection_destroy(
context: *mut cubeb,
collection: *mut cubeb_device_collection,
) -> c_int;
pub fn cubeb_register_device_collection_changed(
context: *mut cubeb,
devtype: cubeb_device_type,
callback: cubeb_device_collection_changed_callback,
user_ptr: *mut c_void,
) -> c_int;
}