Rename the mmdevapi backend to wasapi

1 files changed, 0 insertions, 2054 deletions

diff --git a/Alc/backends/mmdevapi.c b/Alc/backends/mmdevapi.c
deleted file mode 100644
index 961cba52..00000000
--- a/Alc/backends/mmdevapi.c
+++ /dev/null
@@ -1,2054 +0,0 @@
-/**
- * OpenAL cross platform audio library
- * Copyright (C) 2011 by authors.
- * This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Library General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- *  License along with this library; if not, write to the
- *  Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- * Or go to http://www.gnu.org/copyleft/lgpl.html
- */
-
-#include "config.h"
-
-#define COBJMACROS
-#include <stdlib.h>
-#include <stdio.h>
-#include <memory.h>
-
-#include <wtypes.h>
-#include <mmdeviceapi.h>
-#include <audioclient.h>
-#include <cguid.h>
-#include <devpropdef.h>
-#include <mmreg.h>
-#include <propsys.h>
-#include <propkey.h>
-#include <devpkey.h>
-#ifndef _WAVEFORMATEXTENSIBLE_
-#include <ks.h>
-#include <ksmedia.h>
-#endif
-
-#include "alMain.h"
-#include "alu.h"
-#include "ringbuffer.h"
-#include "threads.h"
-#include "compat.h"
-#include "alstring.h"
-#include "converter.h"
-
-#include "backends/base.h"
-
-
-DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
-DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
-
-DEFINE_DEVPROPKEY(DEVPKEY_Device_FriendlyName, 0xa45c254e, 0xdf1c, 0x4efd, 0x80,0x20, 0x67,0xd1,0x46,0xa8,0x50,0xe0, 14);
-DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_FormFactor, 0x1da5d803, 0xd492, 0x4edd, 0x8c,0x23, 0xe0,0xc0,0xff,0xee,0x7f,0x0e, 0);
-DEFINE_PROPERTYKEY(PKEY_AudioEndpoint_GUID, 0x1da5d803, 0xd492, 0x4edd, 0x8c, 0x23,0xe0, 0xc0,0xff,0xee,0x7f,0x0e, 4 );
-
-#define MONO SPEAKER_FRONT_CENTER
-#define STEREO (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT)
-#define QUAD (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
-#define X5DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
-#define X5DOT1REAR (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT)
-#define X6DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_CENTER|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
-#define X7DOT1 (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_SIDE_LEFT|SPEAKER_SIDE_RIGHT)
-#define X7DOT1_WIDE (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT|SPEAKER_FRONT_CENTER|SPEAKER_LOW_FREQUENCY|SPEAKER_BACK_LEFT|SPEAKER_BACK_RIGHT|SPEAKER_FRONT_LEFT_OF_CENTER|SPEAKER_FRONT_RIGHT_OF_CENTER)
-
-#define REFTIME_PER_SEC ((REFERENCE_TIME)10000000)
-
-#define DEVNAME_HEAD "OpenAL Soft on "
-
-
-/* Scales the given value using 64-bit integer math, ceiling the result. */
-static inline ALuint64 ScaleCeil(ALuint64 val, ALuint64 new_scale, ALuint64 old_scale)
-{
-    return (val*new_scale + old_scale-1) / old_scale;
-}
-
-
-typedef struct {
-    al_string name;
-    al_string endpoint_guid; // obtained from PKEY_AudioEndpoint_GUID , set to "Unknown device GUID" if absent.
-    WCHAR *devid;
-} DevMap;
-TYPEDEF_VECTOR(DevMap, vector_DevMap)
-
-static void clear_devlist(vector_DevMap *list)
-{
-#define CLEAR_DEVMAP(i) do {     \
-    AL_STRING_DEINIT((i)->name); \
-    AL_STRING_DEINIT((i)->endpoint_guid); \
-    free((i)->devid);            \
-    (i)->devid = NULL;           \
-} while(0)
-    VECTOR_FOR_EACH(DevMap, *list, CLEAR_DEVMAP);
-    VECTOR_RESIZE(*list, 0, 0);
-#undef CLEAR_DEVMAP
-}
-
-static vector_DevMap PlaybackDevices;
-static vector_DevMap CaptureDevices;
-
-
-static HANDLE ThreadHdl;
-static DWORD ThreadID;
-
-typedef struct {
-    HANDLE FinishedEvt;
-    HRESULT result;
-} ThreadRequest;
-
-#define WM_USER_First       (WM_USER+0)
-#define WM_USER_OpenDevice  (WM_USER+0)
-#define WM_USER_ResetDevice (WM_USER+1)
-#define WM_USER_StartDevice (WM_USER+2)
-#define WM_USER_StopDevice  (WM_USER+3)
-#define WM_USER_CloseDevice (WM_USER+4)
-#define WM_USER_Enumerate   (WM_USER+5)
-#define WM_USER_Last        (WM_USER+5)
-
-static const char MessageStr[WM_USER_Last+1-WM_USER][20] = {
-    "Open Device",
-    "Reset Device",
-    "Start Device",
-    "Stop Device",
-    "Close Device",
-    "Enumerate Devices",
-};
-
-static inline void ReturnMsgResponse(ThreadRequest *req, HRESULT res)
-{
-    req->result = res;
-    SetEvent(req->FinishedEvt);
-}
-
-static HRESULT WaitForResponse(ThreadRequest *req)
-{
-    if(WaitForSingleObject(req->FinishedEvt, INFINITE) == WAIT_OBJECT_0)
-        return req->result;
-    ERR("Message response error: %lu\n", GetLastError());
-    return E_FAIL;
-}
-
-
-static void get_device_name_and_guid(IMMDevice *device, al_string *name, al_string *guid)
-{
-    IPropertyStore *ps;
-    PROPVARIANT pvname;
-    PROPVARIANT pvguid;
-    HRESULT hr;
-
-    alstr_copy_cstr(name, DEVNAME_HEAD);
-
-    hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
-    if(FAILED(hr))
-    {
-        WARN("OpenPropertyStore failed: 0x%08lx\n", hr);
-        alstr_append_cstr(name, "Unknown Device Name");
-        if(guid!=NULL)alstr_copy_cstr(guid, "Unknown Device GUID");
-        return;
-    }
-
-    PropVariantInit(&pvname);
-
-    hr = IPropertyStore_GetValue(ps, (const PROPERTYKEY*)&DEVPKEY_Device_FriendlyName, &pvname);
-    if(FAILED(hr))
-    {
-        WARN("GetValue Device_FriendlyName failed: 0x%08lx\n", hr);
-        alstr_append_cstr(name, "Unknown Device Name");
-    }
-    else if(pvname.vt == VT_LPWSTR)
-        alstr_append_wcstr(name, pvname.pwszVal);
-    else
-    {
-        WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvname.vt);
-        alstr_append_cstr(name, "Unknown Device Name");
-    }
-    PropVariantClear(&pvname);
-
-    if(guid!=NULL){
-        PropVariantInit(&pvguid);
-
-        hr = IPropertyStore_GetValue(ps, (const PROPERTYKEY*)&PKEY_AudioEndpoint_GUID, &pvguid);
-        if(FAILED(hr))
-        {
-            WARN("GetValue AudioEndpoint_GUID failed: 0x%08lx\n", hr);
-            alstr_copy_cstr(guid, "Unknown Device GUID");
-        }
-        else if(pvguid.vt == VT_LPWSTR)
-            alstr_copy_wcstr(guid, pvguid.pwszVal);
-        else
-        {
-            WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvguid.vt);
-            alstr_copy_cstr(guid, "Unknown Device GUID");
-        }
-
-        PropVariantClear(&pvguid);
-    }
-
-    IPropertyStore_Release(ps);
-}
-
-static void get_device_formfactor(IMMDevice *device, EndpointFormFactor *formfactor)
-{
-    IPropertyStore *ps;
-    PROPVARIANT pvform;
-    HRESULT hr;
-
-    hr = IMMDevice_OpenPropertyStore(device, STGM_READ, &ps);
-    if(FAILED(hr))
-    {
-        WARN("OpenPropertyStore failed: 0x%08lx\n", hr);
-        return;
-    }
-
-    PropVariantInit(&pvform);
-
-    hr = IPropertyStore_GetValue(ps, &PKEY_AudioEndpoint_FormFactor, &pvform);
-    if(FAILED(hr))
-        WARN("GetValue AudioEndpoint_FormFactor failed: 0x%08lx\n", hr);
-    else if(pvform.vt == VT_UI4)
-        *formfactor = pvform.ulVal;
-    else if(pvform.vt == VT_EMPTY)
-        *formfactor = UnknownFormFactor;
-    else
-        WARN("Unexpected PROPVARIANT type: 0x%04x\n", pvform.vt);
-
-    PropVariantClear(&pvform);
-    IPropertyStore_Release(ps);
-}
-
-
-static void add_device(IMMDevice *device, const WCHAR *devid, vector_DevMap *list)
-{
-    int count = 0;
-    al_string tmpname;
-    DevMap entry;
-
-    AL_STRING_INIT(tmpname);
-    AL_STRING_INIT(entry.name);
-    AL_STRING_INIT(entry.endpoint_guid);
-
-    entry.devid = strdupW(devid);
-    get_device_name_and_guid(device, &tmpname, &entry.endpoint_guid);
-
-    while(1)
-    {
-        const DevMap *iter;
-
-        alstr_copy(&entry.name, tmpname);
-        if(count != 0)
-        {
-            char str[64];
-            snprintf(str, sizeof(str), " #%d", count+1);
-            alstr_append_cstr(&entry.name, str);
-        }
-
-#define MATCH_ENTRY(i) (alstr_cmp(entry.name, (i)->name) == 0)
-        VECTOR_FIND_IF(iter, const DevMap, *list, MATCH_ENTRY);
-        if(iter == VECTOR_END(*list)) break;
-#undef MATCH_ENTRY
-        count++;
-    }
-
-    TRACE("Got device \"%s\", \"%s\", \"%ls\"\n", alstr_get_cstr(entry.name), alstr_get_cstr(entry.endpoint_guid), entry.devid);
-    VECTOR_PUSH_BACK(*list, entry);
-
-    AL_STRING_DEINIT(tmpname);
-}
-
-static WCHAR *get_device_id(IMMDevice *device)
-{
-    WCHAR *devid;
-    HRESULT hr;
-
-    hr = IMMDevice_GetId(device, &devid);
-    if(FAILED(hr))
-    {
-        ERR("Failed to get device id: %lx\n", hr);
-        return NULL;
-    }
-
-    return devid;
-}
-
-static HRESULT probe_devices(IMMDeviceEnumerator *devenum, EDataFlow flowdir, vector_DevMap *list)
-{
-    IMMDeviceCollection *coll;
-    IMMDevice *defdev = NULL;
-    WCHAR *defdevid = NULL;
-    HRESULT hr;
-    UINT count;
-    UINT i;
-
-    hr = IMMDeviceEnumerator_EnumAudioEndpoints(devenum, flowdir, DEVICE_STATE_ACTIVE, &coll);
-    if(FAILED(hr))
-    {
-        ERR("Failed to enumerate audio endpoints: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    count = 0;
-    hr = IMMDeviceCollection_GetCount(coll, &count);
-    if(SUCCEEDED(hr) && count > 0)
-    {
-        clear_devlist(list);
-        VECTOR_RESIZE(*list, 0, count);
-
-        hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(devenum, flowdir,
-                                                         eMultimedia, &defdev);
-    }
-    if(SUCCEEDED(hr) && defdev != NULL)
-    {
-        defdevid = get_device_id(defdev);
-        if(defdevid)
-            add_device(defdev, defdevid, list);
-    }
-
-    for(i = 0;i < count;++i)
-    {
-        IMMDevice *device;
-        WCHAR *devid;
-
-        hr = IMMDeviceCollection_Item(coll, i, &device);
-        if(FAILED(hr)) continue;
-
-        devid = get_device_id(device);
-        if(devid)
-        {
-            if(wcscmp(devid, defdevid) != 0)
-                add_device(device, devid, list);
-            CoTaskMemFree(devid);
-        }
-        IMMDevice_Release(device);
-    }
-
-    if(defdev) IMMDevice_Release(defdev);
-    if(defdevid) CoTaskMemFree(defdevid);
-    IMMDeviceCollection_Release(coll);
-
-    return S_OK;
-}
-
-
-/* Proxy interface used by the message handler. */
-struct ALCmmdevProxyVtable;
-
-typedef struct ALCmmdevProxy {
-    const struct ALCmmdevProxyVtable *vtbl;
-} ALCmmdevProxy;
-
-struct ALCmmdevProxyVtable {
-    HRESULT (*const openProxy)(ALCmmdevProxy*);
-    void (*const closeProxy)(ALCmmdevProxy*);
-
-    HRESULT (*const resetProxy)(ALCmmdevProxy*);
-    HRESULT (*const startProxy)(ALCmmdevProxy*);
-    void  (*const stopProxy)(ALCmmdevProxy*);
-};
-
-#define DEFINE_ALCMMDEVPROXY_VTABLE(T)                                        \
-DECLARE_THUNK(T, ALCmmdevProxy, HRESULT, openProxy)                           \
-DECLARE_THUNK(T, ALCmmdevProxy, void, closeProxy)                             \
-DECLARE_THUNK(T, ALCmmdevProxy, HRESULT, resetProxy)                          \
-DECLARE_THUNK(T, ALCmmdevProxy, HRESULT, startProxy)                          \
-DECLARE_THUNK(T, ALCmmdevProxy, void, stopProxy)                              \
-                                                                              \
-static const struct ALCmmdevProxyVtable T##_ALCmmdevProxy_vtable = {          \
-    T##_ALCmmdevProxy_openProxy,                                              \
-    T##_ALCmmdevProxy_closeProxy,                                             \
-    T##_ALCmmdevProxy_resetProxy,                                             \
-    T##_ALCmmdevProxy_startProxy,                                             \
-    T##_ALCmmdevProxy_stopProxy,                                              \
-}
-
-static void ALCmmdevProxy_Construct(ALCmmdevProxy* UNUSED(self)) { }
-static void ALCmmdevProxy_Destruct(ALCmmdevProxy* UNUSED(self)) { }
-
-static DWORD CALLBACK ALCmmdevProxy_messageHandler(void *ptr)
-{
-    ThreadRequest *req = ptr;
-    IMMDeviceEnumerator *Enumerator;
-    ALuint deviceCount = 0;
-    ALCmmdevProxy *proxy;
-    HRESULT hr, cohr;
-    MSG msg;
-
-    TRACE("Starting message thread\n");
-
-    cohr = CoInitialize(NULL);
-    if(FAILED(cohr))
-    {
-        WARN("Failed to initialize COM: 0x%08lx\n", cohr);
-        ReturnMsgResponse(req, cohr);
-        return 0;
-    }
-
-    hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
-    if(FAILED(hr))
-    {
-        WARN("Failed to create IMMDeviceEnumerator instance: 0x%08lx\n", hr);
-        CoUninitialize();
-        ReturnMsgResponse(req, hr);
-        return 0;
-    }
-    Enumerator = ptr;
-    IMMDeviceEnumerator_Release(Enumerator);
-    Enumerator = NULL;
-
-    CoUninitialize();
-
-    /* HACK: Force Windows to create a message queue for this thread before
-     * returning success, otherwise PostThreadMessage may fail if it gets
-     * called before GetMessage.
-     */
-    PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
-
-    TRACE("Message thread initialization complete\n");
-    ReturnMsgResponse(req, S_OK);
-
-    TRACE("Starting message loop\n");
-    while(GetMessage(&msg, NULL, WM_USER_First, WM_USER_Last))
-    {
-        TRACE("Got message \"%s\" (0x%04x, lparam=%p, wparam=%p)\n",
-            (msg.message >= WM_USER && msg.message <= WM_USER_Last) ?
-            MessageStr[msg.message-WM_USER] : "Unknown",
-            msg.message, (void*)msg.lParam, (void*)msg.wParam
-        );
-        switch(msg.message)
-        {
-        case WM_USER_OpenDevice:
-            req = (ThreadRequest*)msg.wParam;
-            proxy = (ALCmmdevProxy*)msg.lParam;
-
-            hr = cohr = S_OK;
-            if(++deviceCount == 1)
-                hr = cohr = CoInitialize(NULL);
-            if(SUCCEEDED(hr))
-                hr = V0(proxy,openProxy)();
-            if(FAILED(hr))
-            {
-                if(--deviceCount == 0 && SUCCEEDED(cohr))
-                    CoUninitialize();
-            }
-
-            ReturnMsgResponse(req, hr);
-            continue;
-
-        case WM_USER_ResetDevice:
-            req = (ThreadRequest*)msg.wParam;
-            proxy = (ALCmmdevProxy*)msg.lParam;
-
-            hr = V0(proxy,resetProxy)();
-            ReturnMsgResponse(req, hr);
-            continue;
-
-        case WM_USER_StartDevice:
-            req = (ThreadRequest*)msg.wParam;
-            proxy = (ALCmmdevProxy*)msg.lParam;
-
-            hr = V0(proxy,startProxy)();
-            ReturnMsgResponse(req, hr);
-            continue;
-
-        case WM_USER_StopDevice:
-            req = (ThreadRequest*)msg.wParam;
-            proxy = (ALCmmdevProxy*)msg.lParam;
-
-            V0(proxy,stopProxy)();
-            ReturnMsgResponse(req, S_OK);
-            continue;
-
-        case WM_USER_CloseDevice:
-            req = (ThreadRequest*)msg.wParam;
-            proxy = (ALCmmdevProxy*)msg.lParam;
-
-            V0(proxy,closeProxy)();
-            if(--deviceCount == 0)
-                CoUninitialize();
-
-            ReturnMsgResponse(req, S_OK);
-            continue;
-
-        case WM_USER_Enumerate:
-            req = (ThreadRequest*)msg.wParam;
-
-            hr = cohr = S_OK;
-            if(++deviceCount == 1)
-                hr = cohr = CoInitialize(NULL);
-            if(SUCCEEDED(hr))
-                hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
-            if(SUCCEEDED(hr))
-            {
-                Enumerator = ptr;
-
-                if(msg.lParam == ALL_DEVICE_PROBE)
-                    hr = probe_devices(Enumerator, eRender, &PlaybackDevices);
-                else if(msg.lParam == CAPTURE_DEVICE_PROBE)
-                    hr = probe_devices(Enumerator, eCapture, &CaptureDevices);
-
-                IMMDeviceEnumerator_Release(Enumerator);
-                Enumerator = NULL;
-            }
-
-            if(--deviceCount == 0 && SUCCEEDED(cohr))
-                CoUninitialize();
-
-            ReturnMsgResponse(req, hr);
-            continue;
-
-        default:
-            ERR("Unexpected message: %u\n", msg.message);
-            continue;
-        }
-    }
-    TRACE("Message loop finished\n");
-
-    return 0;
-}
-
-
-typedef struct ALCmmdevPlayback {
-    DERIVE_FROM_TYPE(ALCbackend);
-    DERIVE_FROM_TYPE(ALCmmdevProxy);
-
-    WCHAR *devid;
-
-    IMMDevice *mmdev;
-    IAudioClient *client;
-    IAudioRenderClient *render;
-    HANDLE NotifyEvent;
-
-    HANDLE MsgEvent;
-
-    ATOMIC(UINT32) Padding;
-
-    ATOMIC(int) killNow;
-    althrd_t thread;
-} ALCmmdevPlayback;
-
-static int ALCmmdevPlayback_mixerProc(void *arg);
-
-static void ALCmmdevPlayback_Construct(ALCmmdevPlayback *self, ALCdevice *device);
-static void ALCmmdevPlayback_Destruct(ALCmmdevPlayback *self);
-static ALCenum ALCmmdevPlayback_open(ALCmmdevPlayback *self, const ALCchar *name);
-static HRESULT ALCmmdevPlayback_openProxy(ALCmmdevPlayback *self);
-static void ALCmmdevPlayback_closeProxy(ALCmmdevPlayback *self);
-static ALCboolean ALCmmdevPlayback_reset(ALCmmdevPlayback *self);
-static HRESULT ALCmmdevPlayback_resetProxy(ALCmmdevPlayback *self);
-static ALCboolean ALCmmdevPlayback_start(ALCmmdevPlayback *self);
-static HRESULT ALCmmdevPlayback_startProxy(ALCmmdevPlayback *self);
-static void ALCmmdevPlayback_stop(ALCmmdevPlayback *self);
-static void ALCmmdevPlayback_stopProxy(ALCmmdevPlayback *self);
-static DECLARE_FORWARD2(ALCmmdevPlayback, ALCbackend, ALCenum, captureSamples, ALCvoid*, ALCuint)
-static DECLARE_FORWARD(ALCmmdevPlayback, ALCbackend, ALCuint, availableSamples)
-static ClockLatency ALCmmdevPlayback_getClockLatency(ALCmmdevPlayback *self);
-static DECLARE_FORWARD(ALCmmdevPlayback, ALCbackend, void, lock)
-static DECLARE_FORWARD(ALCmmdevPlayback, ALCbackend, void, unlock)
-DECLARE_DEFAULT_ALLOCATORS(ALCmmdevPlayback)
-
-DEFINE_ALCMMDEVPROXY_VTABLE(ALCmmdevPlayback);
-DEFINE_ALCBACKEND_VTABLE(ALCmmdevPlayback);
-
-
-static void ALCmmdevPlayback_Construct(ALCmmdevPlayback *self, ALCdevice *device)
-{
-    SET_VTABLE2(ALCmmdevPlayback, ALCbackend, self);
-    SET_VTABLE2(ALCmmdevPlayback, ALCmmdevProxy, self);
-    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
-    ALCmmdevProxy_Construct(STATIC_CAST(ALCmmdevProxy, self));
-
-    self->devid = NULL;
-
-    self->mmdev = NULL;
-    self->client = NULL;
-    self->render = NULL;
-    self->NotifyEvent = NULL;
-
-    self->MsgEvent = NULL;
-
-    ATOMIC_INIT(&self->Padding, 0);
-
-    ATOMIC_INIT(&self->killNow, 0);
-}
-
-static void ALCmmdevPlayback_Destruct(ALCmmdevPlayback *self)
-{
-    if(self->MsgEvent)
-    {
-        ThreadRequest req = { self->MsgEvent, 0 };
-        if(PostThreadMessage(ThreadID, WM_USER_CloseDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-            (void)WaitForResponse(&req);
-
-        CloseHandle(self->MsgEvent);
-        self->MsgEvent = NULL;
-    }
-
-    if(self->NotifyEvent)
-        CloseHandle(self->NotifyEvent);
-    self->NotifyEvent = NULL;
-
-    free(self->devid);
-    self->devid = NULL;
-
-    if(self->NotifyEvent != NULL)
-        CloseHandle(self->NotifyEvent);
-    self->NotifyEvent = NULL;
-    if(self->MsgEvent != NULL)
-        CloseHandle(self->MsgEvent);
-    self->MsgEvent = NULL;
-
-    free(self->devid);
-    self->devid = NULL;
-
-    ALCmmdevProxy_Destruct(STATIC_CAST(ALCmmdevProxy, self));
-    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
-}
-
-
-FORCE_ALIGN static int ALCmmdevPlayback_mixerProc(void *arg)
-{
-    ALCmmdevPlayback *self = arg;
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    UINT32 buffer_len, written;
-    ALuint update_size, len;
-    BYTE *buffer;
-    HRESULT hr;
-
-    hr = CoInitialize(NULL);
-    if(FAILED(hr))
-    {
-        ERR("CoInitialize(NULL) failed: 0x%08lx\n", hr);
-        V0(device->Backend,lock)();
-        aluHandleDisconnect(device, "COM init failed: 0x%08lx", hr);
-        V0(device->Backend,unlock)();
-        return 1;
-    }
-
-    SetRTPriority();
-    althrd_setname(althrd_current(), MIXER_THREAD_NAME);
-
-    update_size = device->UpdateSize;
-    buffer_len = update_size * device->NumUpdates;
-    while(!ATOMIC_LOAD(&self->killNow, almemory_order_relaxed))
-    {
-        hr = IAudioClient_GetCurrentPadding(self->client, &written);
-        if(FAILED(hr))
-        {
-            ERR("Failed to get padding: 0x%08lx\n", hr);
-            V0(device->Backend,lock)();
-            aluHandleDisconnect(device, "Failed to retrieve buffer padding: 0x%08lx", hr);
-            V0(device->Backend,unlock)();
-            break;
-        }
-        ATOMIC_STORE(&self->Padding, written, almemory_order_relaxed);
-
-        len = buffer_len - written;
-        if(len < update_size)
-        {
-            DWORD res;
-            res = WaitForSingleObjectEx(self->NotifyEvent, 2000, FALSE);
-            if(res != WAIT_OBJECT_0)
-                ERR("WaitForSingleObjectEx error: 0x%lx\n", res);
-            continue;
-        }
-        len -= len%update_size;
-
-        hr = IAudioRenderClient_GetBuffer(self->render, len, &buffer);
-        if(SUCCEEDED(hr))
-        {
-            ALCmmdevPlayback_lock(self);
-            aluMixData(device, buffer, len);
-            ATOMIC_STORE(&self->Padding, written + len, almemory_order_relaxed);
-            ALCmmdevPlayback_unlock(self);
-            hr = IAudioRenderClient_ReleaseBuffer(self->render, len, 0);
-        }
-        if(FAILED(hr))
-        {
-            ERR("Failed to buffer data: 0x%08lx\n", hr);
-            V0(device->Backend,lock)();
-            aluHandleDisconnect(device, "Failed to send playback samples: 0x%08lx", hr);
-            V0(device->Backend,unlock)();
-            break;
-        }
-    }
-    ATOMIC_STORE(&self->Padding, 0, almemory_order_release);
-
-    CoUninitialize();
-    return 0;
-}
-
-
-static ALCboolean MakeExtensible(WAVEFORMATEXTENSIBLE *out, const WAVEFORMATEX *in)
-{
-    memset(out, 0, sizeof(*out));
-    if(in->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
-        *out = *(const WAVEFORMATEXTENSIBLE*)in;
-    else if(in->wFormatTag == WAVE_FORMAT_PCM)
-    {
-        out->Format = *in;
-        out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
-        out->Format.cbSize = sizeof(*out) - sizeof(*in);
-        if(out->Format.nChannels == 1)
-            out->dwChannelMask = MONO;
-        else if(out->Format.nChannels == 2)
-            out->dwChannelMask = STEREO;
-        else
-            ERR("Unhandled PCM channel count: %d\n", out->Format.nChannels);
-        out->SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-    }
-    else if(in->wFormatTag == WAVE_FORMAT_IEEE_FLOAT)
-    {
-        out->Format = *in;
-        out->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
-        out->Format.cbSize = sizeof(*out) - sizeof(*in);
-        if(out->Format.nChannels == 1)
-            out->dwChannelMask = MONO;
-        else if(out->Format.nChannels == 2)
-            out->dwChannelMask = STEREO;
-        else
-            ERR("Unhandled IEEE float channel count: %d\n", out->Format.nChannels);
-        out->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-    }
-    else
-    {
-        ERR("Unhandled format tag: 0x%04x\n", in->wFormatTag);
-        return ALC_FALSE;
-    }
-    return ALC_TRUE;
-}
-
-static ALCenum ALCmmdevPlayback_open(ALCmmdevPlayback *self, const ALCchar *deviceName)
-{
-    HRESULT hr = S_OK;
-
-    self->NotifyEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
-    self->MsgEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
-    if(self->NotifyEvent == NULL || self->MsgEvent == NULL)
-    {
-        ERR("Failed to create message events: %lu\n", GetLastError());
-        hr = E_FAIL;
-    }
-
-    if(SUCCEEDED(hr))
-    {
-        if(deviceName)
-        {
-            const DevMap *iter;
-
-            if(VECTOR_SIZE(PlaybackDevices) == 0)
-            {
-                ThreadRequest req = { self->MsgEvent, 0 };
-                if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, ALL_DEVICE_PROBE))
-                    (void)WaitForResponse(&req);
-            }
-
-            hr = E_FAIL;
-#define MATCH_NAME(i) (alstr_cmp_cstr((i)->name, deviceName) == 0 ||        \
-                       alstr_cmp_cstr((i)->endpoint_guid, deviceName) == 0)
-            VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME);
-#undef MATCH_NAME
-            if(iter == VECTOR_END(PlaybackDevices))
-            {
-                int len;
-                if((len=MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, NULL, 0)) > 0)
-                {
-                    WCHAR *wname = calloc(sizeof(WCHAR), len);
-                    MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, wname, len);
-#define MATCH_NAME(i) (wcscmp((i)->devid, wname) == 0)
-                    VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME);
-#undef MATCH_NAME
-                    free(wname);
-                }
-            }
-            if(iter == VECTOR_END(PlaybackDevices))
-                WARN("Failed to find device name matching \"%s\"\n", deviceName);
-            else
-            {
-                ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-                self->devid = strdupW(iter->devid);
-                alstr_copy(&device->DeviceName, iter->name);
-                hr = S_OK;
-            }
-        }
-    }
-
-    if(SUCCEEDED(hr))
-    {
-        ThreadRequest req = { self->MsgEvent, 0 };
-
-        hr = E_FAIL;
-        if(PostThreadMessage(ThreadID, WM_USER_OpenDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-            hr = WaitForResponse(&req);
-        else
-            ERR("Failed to post thread message: %lu\n", GetLastError());
-    }
-
-    if(FAILED(hr))
-    {
-        if(self->NotifyEvent != NULL)
-            CloseHandle(self->NotifyEvent);
-        self->NotifyEvent = NULL;
-        if(self->MsgEvent != NULL)
-            CloseHandle(self->MsgEvent);
-        self->MsgEvent = NULL;
-
-        free(self->devid);
-        self->devid = NULL;
-
-        ERR("Device init failed: 0x%08lx\n", hr);
-        return ALC_INVALID_VALUE;
-    }
-
-    return ALC_NO_ERROR;
-}
-
-static HRESULT ALCmmdevPlayback_openProxy(ALCmmdevPlayback *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    void *ptr;
-    HRESULT hr;
-
-    hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        IMMDeviceEnumerator *Enumerator = ptr;
-        if(!self->devid)
-            hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eRender, eMultimedia, &self->mmdev);
-        else
-            hr = IMMDeviceEnumerator_GetDevice(Enumerator, self->devid, &self->mmdev);
-        IMMDeviceEnumerator_Release(Enumerator);
-        Enumerator = NULL;
-    }
-    if(SUCCEEDED(hr))
-        hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        self->client = ptr;
-        if(alstr_empty(device->DeviceName))
-            get_device_name_and_guid(self->mmdev, &device->DeviceName, NULL);
-    }
-
-    if(FAILED(hr))
-    {
-        if(self->mmdev)
-            IMMDevice_Release(self->mmdev);
-        self->mmdev = NULL;
-    }
-
-    return hr;
-}
-
-
-static void ALCmmdevPlayback_closeProxy(ALCmmdevPlayback *self)
-{
-    if(self->client)
-        IAudioClient_Release(self->client);
-    self->client = NULL;
-
-    if(self->mmdev)
-        IMMDevice_Release(self->mmdev);
-    self->mmdev = NULL;
-}
-
-
-static ALCboolean ALCmmdevPlayback_reset(ALCmmdevPlayback *self)
-{
-    ThreadRequest req = { self->MsgEvent, 0 };
-    HRESULT hr = E_FAIL;
-
-    if(PostThreadMessage(ThreadID, WM_USER_ResetDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-        hr = WaitForResponse(&req);
-
-    return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE;
-}
-
-static HRESULT ALCmmdevPlayback_resetProxy(ALCmmdevPlayback *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    EndpointFormFactor formfactor = UnknownFormFactor;
-    WAVEFORMATEXTENSIBLE OutputType;
-    WAVEFORMATEX *wfx = NULL;
-    REFERENCE_TIME min_per, buf_time;
-    UINT32 buffer_len, min_len;
-    void *ptr = NULL;
-    HRESULT hr;
-
-    if(self->client)
-        IAudioClient_Release(self->client);
-    self->client = NULL;
-
-    hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
-    if(FAILED(hr))
-    {
-        ERR("Failed to reactivate audio client: 0x%08lx\n", hr);
-        return hr;
-    }
-    self->client = ptr;
-
-    hr = IAudioClient_GetMixFormat(self->client, &wfx);
-    if(FAILED(hr))
-    {
-        ERR("Failed to get mix format: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    if(!MakeExtensible(&OutputType, wfx))
-    {
-        CoTaskMemFree(wfx);
-        return E_FAIL;
-    }
-    CoTaskMemFree(wfx);
-    wfx = NULL;
-
-    buf_time = ScaleCeil(device->UpdateSize*device->NumUpdates, REFTIME_PER_SEC,
-                         device->Frequency);
-
-    if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
-        device->Frequency = OutputType.Format.nSamplesPerSec;
-    if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
-    {
-        if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
-            device->FmtChans = DevFmtMono;
-        else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
-            device->FmtChans = DevFmtStereo;
-        else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
-            device->FmtChans = DevFmtQuad;
-        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
-            device->FmtChans = DevFmtX51;
-        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1REAR)
-            device->FmtChans = DevFmtX51Rear;
-        else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
-            device->FmtChans = DevFmtX61;
-        else if(OutputType.Format.nChannels == 8 && (OutputType.dwChannelMask == X7DOT1 || OutputType.dwChannelMask == X7DOT1_WIDE))
-            device->FmtChans = DevFmtX71;
-        else
-            ERR("Unhandled channel config: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
-    }
-
-    switch(device->FmtChans)
-    {
-        case DevFmtMono:
-            OutputType.Format.nChannels = 1;
-            OutputType.dwChannelMask = MONO;
-            break;
-        case DevFmtAmbi3D:
-            device->FmtChans = DevFmtStereo;
-            /*fall-through*/
-        case DevFmtStereo:
-            OutputType.Format.nChannels = 2;
-            OutputType.dwChannelMask = STEREO;
-            break;
-        case DevFmtQuad:
-            OutputType.Format.nChannels = 4;
-            OutputType.dwChannelMask = QUAD;
-            break;
-        case DevFmtX51:
-            OutputType.Format.nChannels = 6;
-            OutputType.dwChannelMask = X5DOT1;
-            break;
-        case DevFmtX51Rear:
-            OutputType.Format.nChannels = 6;
-            OutputType.dwChannelMask = X5DOT1REAR;
-            break;
-        case DevFmtX61:
-            OutputType.Format.nChannels = 7;
-            OutputType.dwChannelMask = X6DOT1;
-            break;
-        case DevFmtX71:
-            OutputType.Format.nChannels = 8;
-            OutputType.dwChannelMask = X7DOT1;
-            break;
-    }
-    switch(device->FmtType)
-    {
-        case DevFmtByte:
-            device->FmtType = DevFmtUByte;
-            /* fall-through */
-        case DevFmtUByte:
-            OutputType.Format.wBitsPerSample = 8;
-            OutputType.Samples.wValidBitsPerSample = 8;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtUShort:
-            device->FmtType = DevFmtShort;
-            /* fall-through */
-        case DevFmtShort:
-            OutputType.Format.wBitsPerSample = 16;
-            OutputType.Samples.wValidBitsPerSample = 16;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtUInt:
-            device->FmtType = DevFmtInt;
-            /* fall-through */
-        case DevFmtInt:
-            OutputType.Format.wBitsPerSample = 32;
-            OutputType.Samples.wValidBitsPerSample = 32;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtFloat:
-            OutputType.Format.wBitsPerSample = 32;
-            OutputType.Samples.wValidBitsPerSample = 32;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-            break;
-    }
-    OutputType.Format.nSamplesPerSec = device->Frequency;
-
-    OutputType.Format.nBlockAlign = OutputType.Format.nChannels *
-                                    OutputType.Format.wBitsPerSample / 8;
-    OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
-                                        OutputType.Format.nBlockAlign;
-
-    hr = IAudioClient_IsFormatSupported(self->client, AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx);
-    if(FAILED(hr))
-    {
-        ERR("Failed to check format support: 0x%08lx\n", hr);
-        hr = IAudioClient_GetMixFormat(self->client, &wfx);
-    }
-    if(FAILED(hr))
-    {
-        ERR("Failed to find a supported format: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    if(wfx != NULL)
-    {
-        if(!MakeExtensible(&OutputType, wfx))
-        {
-            CoTaskMemFree(wfx);
-            return E_FAIL;
-        }
-        CoTaskMemFree(wfx);
-        wfx = NULL;
-
-        device->Frequency = OutputType.Format.nSamplesPerSec;
-        if(OutputType.Format.nChannels == 1 && OutputType.dwChannelMask == MONO)
-            device->FmtChans = DevFmtMono;
-        else if(OutputType.Format.nChannels == 2 && OutputType.dwChannelMask == STEREO)
-            device->FmtChans = DevFmtStereo;
-        else if(OutputType.Format.nChannels == 4 && OutputType.dwChannelMask == QUAD)
-            device->FmtChans = DevFmtQuad;
-        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1)
-            device->FmtChans = DevFmtX51;
-        else if(OutputType.Format.nChannels == 6 && OutputType.dwChannelMask == X5DOT1REAR)
-            device->FmtChans = DevFmtX51Rear;
-        else if(OutputType.Format.nChannels == 7 && OutputType.dwChannelMask == X6DOT1)
-            device->FmtChans = DevFmtX61;
-        else if(OutputType.Format.nChannels == 8 && (OutputType.dwChannelMask == X7DOT1 || OutputType.dwChannelMask == X7DOT1_WIDE))
-            device->FmtChans = DevFmtX71;
-        else
-        {
-            ERR("Unhandled extensible channels: %d -- 0x%08lx\n", OutputType.Format.nChannels, OutputType.dwChannelMask);
-            device->FmtChans = DevFmtStereo;
-            OutputType.Format.nChannels = 2;
-            OutputType.dwChannelMask = STEREO;
-        }
-
-        if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))
-        {
-            if(OutputType.Format.wBitsPerSample == 8)
-                device->FmtType = DevFmtUByte;
-            else if(OutputType.Format.wBitsPerSample == 16)
-                device->FmtType = DevFmtShort;
-            else if(OutputType.Format.wBitsPerSample == 32)
-                device->FmtType = DevFmtInt;
-            else
-            {
-                device->FmtType = DevFmtShort;
-                OutputType.Format.wBitsPerSample = 16;
-            }
-        }
-        else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
-        {
-            device->FmtType = DevFmtFloat;
-            OutputType.Format.wBitsPerSample = 32;
-        }
-        else
-        {
-            ERR("Unhandled format sub-type\n");
-            device->FmtType = DevFmtShort;
-            OutputType.Format.wBitsPerSample = 16;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-        }
-        OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
-    }
-    get_device_formfactor(self->mmdev, &formfactor);
-    device->IsHeadphones = (device->FmtChans == DevFmtStereo &&
-                            (formfactor == Headphones || formfactor == Headset)
-                           );
-
-    SetDefaultWFXChannelOrder(device);
-
-    hr = IAudioClient_Initialize(self->client, AUDCLNT_SHAREMODE_SHARED,
-                                 AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
-                                 buf_time, 0, &OutputType.Format, NULL);
-    if(FAILED(hr))
-    {
-        ERR("Failed to initialize audio client: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    hr = IAudioClient_GetDevicePeriod(self->client, &min_per, NULL);
-    if(SUCCEEDED(hr))
-    {
-        min_len = (UINT32)ScaleCeil(min_per, device->Frequency, REFTIME_PER_SEC);
-        /* Find the nearest multiple of the period size to the update size */
-        if(min_len < device->UpdateSize)
-            min_len *= (device->UpdateSize + min_len/2)/min_len;
-        hr = IAudioClient_GetBufferSize(self->client, &buffer_len);
-    }
-    if(FAILED(hr))
-    {
-        ERR("Failed to get audio buffer info: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    device->UpdateSize = min_len;
-    device->NumUpdates = buffer_len / device->UpdateSize;
-    if(device->NumUpdates <= 1)
-    {
-        ERR("Audio client returned buffer_len < period*2; expect break up\n");
-        device->NumUpdates = 2;
-        device->UpdateSize = buffer_len / device->NumUpdates;
-    }
-
-    hr = IAudioClient_SetEventHandle(self->client, self->NotifyEvent);
-    if(FAILED(hr))
-    {
-        ERR("Failed to set event handle: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    return hr;
-}
-
-
-static ALCboolean ALCmmdevPlayback_start(ALCmmdevPlayback *self)
-{
-    ThreadRequest req = { self->MsgEvent, 0 };
-    HRESULT hr = E_FAIL;
-
-    if(PostThreadMessage(ThreadID, WM_USER_StartDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-        hr = WaitForResponse(&req);
-
-    return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE;
-}
-
-static HRESULT ALCmmdevPlayback_startProxy(ALCmmdevPlayback *self)
-{
-    HRESULT hr;
-    void *ptr;
-
-    ResetEvent(self->NotifyEvent);
-    hr = IAudioClient_Start(self->client);
-    if(FAILED(hr))
-        ERR("Failed to start audio client: 0x%08lx\n", hr);
-
-    if(SUCCEEDED(hr))
-        hr = IAudioClient_GetService(self->client, &IID_IAudioRenderClient, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        self->render = ptr;
-        ATOMIC_STORE(&self->killNow, 0, almemory_order_release);
-        if(althrd_create(&self->thread, ALCmmdevPlayback_mixerProc, self) != althrd_success)
-        {
-            if(self->render)
-                IAudioRenderClient_Release(self->render);
-            self->render = NULL;
-            IAudioClient_Stop(self->client);
-            ERR("Failed to start thread\n");
-            hr = E_FAIL;
-        }
-    }
-
-    return hr;
-}
-
-
-static void ALCmmdevPlayback_stop(ALCmmdevPlayback *self)
-{
-    ThreadRequest req = { self->MsgEvent, 0 };
-    if(PostThreadMessage(ThreadID, WM_USER_StopDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-        (void)WaitForResponse(&req);
-}
-
-static void ALCmmdevPlayback_stopProxy(ALCmmdevPlayback *self)
-{
-    int res;
-
-    if(!self->render)
-        return;
-
-    ATOMIC_STORE_SEQ(&self->killNow, 1);
-    althrd_join(self->thread, &res);
-
-    IAudioRenderClient_Release(self->render);
-    self->render = NULL;
-    IAudioClient_Stop(self->client);
-}
-
-
-static ClockLatency ALCmmdevPlayback_getClockLatency(ALCmmdevPlayback *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    ClockLatency ret;
-
-    ALCmmdevPlayback_lock(self);
-    ret.ClockTime = GetDeviceClockTime(device);
-    ret.Latency = ATOMIC_LOAD(&self->Padding, almemory_order_relaxed) * DEVICE_CLOCK_RES /
-                  device->Frequency;
-    ALCmmdevPlayback_unlock(self);
-
-    return ret;
-}
-
-
-typedef struct ALCmmdevCapture {
-    DERIVE_FROM_TYPE(ALCbackend);
-    DERIVE_FROM_TYPE(ALCmmdevProxy);
-
-    WCHAR *devid;
-
-    IMMDevice *mmdev;
-    IAudioClient *client;
-    IAudioCaptureClient *capture;
-    HANDLE NotifyEvent;
-
-    HANDLE MsgEvent;
-
-    ChannelConverter *ChannelConv;
-    SampleConverter *SampleConv;
-    ll_ringbuffer_t *Ring;
-
-    ATOMIC(int) killNow;
-    althrd_t thread;
-} ALCmmdevCapture;
-
-static int ALCmmdevCapture_recordProc(void *arg);
-
-static void ALCmmdevCapture_Construct(ALCmmdevCapture *self, ALCdevice *device);
-static void ALCmmdevCapture_Destruct(ALCmmdevCapture *self);
-static ALCenum ALCmmdevCapture_open(ALCmmdevCapture *self, const ALCchar *name);
-static HRESULT ALCmmdevCapture_openProxy(ALCmmdevCapture *self);
-static void ALCmmdevCapture_closeProxy(ALCmmdevCapture *self);
-static DECLARE_FORWARD(ALCmmdevCapture, ALCbackend, ALCboolean, reset)
-static HRESULT ALCmmdevCapture_resetProxy(ALCmmdevCapture *self);
-static ALCboolean ALCmmdevCapture_start(ALCmmdevCapture *self);
-static HRESULT ALCmmdevCapture_startProxy(ALCmmdevCapture *self);
-static void ALCmmdevCapture_stop(ALCmmdevCapture *self);
-static void ALCmmdevCapture_stopProxy(ALCmmdevCapture *self);
-static ALCenum ALCmmdevCapture_captureSamples(ALCmmdevCapture *self, ALCvoid *buffer, ALCuint samples);
-static ALuint ALCmmdevCapture_availableSamples(ALCmmdevCapture *self);
-static DECLARE_FORWARD(ALCmmdevCapture, ALCbackend, ClockLatency, getClockLatency)
-static DECLARE_FORWARD(ALCmmdevCapture, ALCbackend, void, lock)
-static DECLARE_FORWARD(ALCmmdevCapture, ALCbackend, void, unlock)
-DECLARE_DEFAULT_ALLOCATORS(ALCmmdevCapture)
-
-DEFINE_ALCMMDEVPROXY_VTABLE(ALCmmdevCapture);
-DEFINE_ALCBACKEND_VTABLE(ALCmmdevCapture);
-
-
-static void ALCmmdevCapture_Construct(ALCmmdevCapture *self, ALCdevice *device)
-{
-    SET_VTABLE2(ALCmmdevCapture, ALCbackend, self);
-    SET_VTABLE2(ALCmmdevCapture, ALCmmdevProxy, self);
-    ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
-    ALCmmdevProxy_Construct(STATIC_CAST(ALCmmdevProxy, self));
-
-    self->devid = NULL;
-
-    self->mmdev = NULL;
-    self->client = NULL;
-    self->capture = NULL;
-    self->NotifyEvent = NULL;
-
-    self->MsgEvent = NULL;
-
-    self->ChannelConv = NULL;
-    self->SampleConv = NULL;
-    self->Ring = NULL;
-
-    ATOMIC_INIT(&self->killNow, 0);
-}
-
-static void ALCmmdevCapture_Destruct(ALCmmdevCapture *self)
-{
-    if(self->MsgEvent)
-    {
-        ThreadRequest req = { self->MsgEvent, 0 };
-        if(PostThreadMessage(ThreadID, WM_USER_CloseDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-            (void)WaitForResponse(&req);
-
-        CloseHandle(self->MsgEvent);
-        self->MsgEvent = NULL;
-    }
-
-    if(self->NotifyEvent != NULL)
-        CloseHandle(self->NotifyEvent);
-    self->NotifyEvent = NULL;
-
-    ll_ringbuffer_free(self->Ring);
-    self->Ring = NULL;
-
-    DestroySampleConverter(&self->SampleConv);
-    DestroyChannelConverter(&self->ChannelConv);
-
-    free(self->devid);
-    self->devid = NULL;
-
-    ALCmmdevProxy_Destruct(STATIC_CAST(ALCmmdevProxy, self));
-    ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
-}
-
-
-FORCE_ALIGN int ALCmmdevCapture_recordProc(void *arg)
-{
-    ALCmmdevCapture *self = arg;
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    ALfloat *samples = NULL;
-    size_t samplesmax = 0;
-    HRESULT hr;
-
-    hr = CoInitialize(NULL);
-    if(FAILED(hr))
-    {
-        ERR("CoInitialize(NULL) failed: 0x%08lx\n", hr);
-        V0(device->Backend,lock)();
-        aluHandleDisconnect(device, "COM init failed: 0x%08lx", hr);
-        V0(device->Backend,unlock)();
-        return 1;
-    }
-
-    althrd_setname(althrd_current(), RECORD_THREAD_NAME);
-
-    while(!ATOMIC_LOAD(&self->killNow, almemory_order_relaxed))
-    {
-        UINT32 avail;
-        DWORD res;
-
-        hr = IAudioCaptureClient_GetNextPacketSize(self->capture, &avail);
-        if(FAILED(hr))
-            ERR("Failed to get next packet size: 0x%08lx\n", hr);
-        else if(avail > 0)
-        {
-            UINT32 numsamples;
-            DWORD flags;
-            BYTE *rdata;
-
-            hr = IAudioCaptureClient_GetBuffer(self->capture,
-                &rdata, &numsamples, &flags, NULL, NULL
-            );
-            if(FAILED(hr))
-                ERR("Failed to get capture buffer: 0x%08lx\n", hr);
-            else
-            {
-                ll_ringbuffer_data_t data[2];
-                size_t dstframes = 0;
-
-                if(self->ChannelConv)
-                {
-                    if(samplesmax < numsamples)
-                    {
-                        size_t newmax = RoundUp(numsamples, 4096);
-                        ALfloat *tmp = al_calloc(DEF_ALIGN, newmax*2*sizeof(ALfloat));
-                        al_free(samples);
-                        samples = tmp;
-                        samplesmax = newmax;
-                    }
-                    ChannelConverterInput(self->ChannelConv, rdata, samples, numsamples);
-                    rdata = (BYTE*)samples;
-                }
-
-                ll_ringbuffer_get_write_vector(self->Ring, data);
-
-                if(self->SampleConv)
-                {
-                    const ALvoid *srcdata = rdata;
-                    ALsizei srcframes = numsamples;
-
-                    dstframes = SampleConverterInput(self->SampleConv,
-                        &srcdata, &srcframes, data[0].buf, (ALsizei)minz(data[0].len, INT_MAX)
-                    );
-                    if(srcframes > 0 && dstframes == data[0].len && data[1].len > 0)
-                    {
-                        /* If some source samples remain, all of the first dest
-                         * block was filled, and there's space in the second
-                         * dest block, do another run for the second block.
-                         */
-                        dstframes += SampleConverterInput(self->SampleConv,
-                            &srcdata, &srcframes, data[1].buf, (ALsizei)minz(data[1].len, INT_MAX)
-                        );
-                    }
-                }
-                else
-                {
-                    ALuint framesize = FrameSizeFromDevFmt(device->FmtChans, device->FmtType,
-                                                           device->AmbiOrder);
-                    size_t len1 = minz(data[0].len, numsamples);
-                    size_t len2 = minz(data[1].len, numsamples-len1);
-
-                    memcpy(data[0].buf, rdata, len1*framesize);
-                    if(len2 > 0)
-                        memcpy(data[1].buf, rdata+len1*framesize, len2*framesize);
-                    dstframes = len1 + len2;
-                }
-
-                ll_ringbuffer_write_advance(self->Ring, dstframes);
-
-                hr = IAudioCaptureClient_ReleaseBuffer(self->capture, numsamples);
-                if(FAILED(hr)) ERR("Failed to release capture buffer: 0x%08lx\n", hr);
-            }
-        }
-
-        if(FAILED(hr))
-        {
-            V0(device->Backend,lock)();
-            aluHandleDisconnect(device, "Failed to capture samples: 0x%08lx", hr);
-            V0(device->Backend,unlock)();
-            break;
-        }
-
-        res = WaitForSingleObjectEx(self->NotifyEvent, 2000, FALSE);
-        if(res != WAIT_OBJECT_0)
-            ERR("WaitForSingleObjectEx error: 0x%lx\n", res);
-    }
-
-    al_free(samples);
-    samples = NULL;
-    samplesmax = 0;
-
-    CoUninitialize();
-    return 0;
-}
-
-
-static ALCenum ALCmmdevCapture_open(ALCmmdevCapture *self, const ALCchar *deviceName)
-{
-    HRESULT hr = S_OK;
-
-    self->NotifyEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
-    self->MsgEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
-    if(self->NotifyEvent == NULL || self->MsgEvent == NULL)
-    {
-        ERR("Failed to create message events: %lu\n", GetLastError());
-        hr = E_FAIL;
-    }
-
-    if(SUCCEEDED(hr))
-    {
-        if(deviceName)
-        {
-            const DevMap *iter;
-
-            if(VECTOR_SIZE(CaptureDevices) == 0)
-            {
-                ThreadRequest req = { self->MsgEvent, 0 };
-                if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, CAPTURE_DEVICE_PROBE))
-                    (void)WaitForResponse(&req);
-            }
-
-            hr = E_FAIL;
-#define MATCH_NAME(i) (alstr_cmp_cstr((i)->name, deviceName) == 0 ||        \
-                       alstr_cmp_cstr((i)->endpoint_guid, deviceName) == 0)
-            VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME);
-#undef MATCH_NAME
-            if(iter == VECTOR_END(CaptureDevices))
-            {
-                int len;
-                if((len=MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, NULL, 0)) > 0)
-                {
-                    WCHAR *wname = calloc(sizeof(WCHAR), len);
-                    MultiByteToWideChar(CP_UTF8, 0, deviceName, -1, wname, len);
-#define MATCH_NAME(i) (wcscmp((i)->devid, wname) == 0)
-                    VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME);
-#undef MATCH_NAME
-                    free(wname);
-                }
-            }
-            if(iter == VECTOR_END(CaptureDevices))
-                WARN("Failed to find device name matching \"%s\"\n", deviceName);
-            else
-            {
-                ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
-                self->devid = strdupW(iter->devid);
-                alstr_copy(&device->DeviceName, iter->name);
-                hr = S_OK;
-            }
-        }
-    }
-
-    if(SUCCEEDED(hr))
-    {
-        ThreadRequest req = { self->MsgEvent, 0 };
-
-        hr = E_FAIL;
-        if(PostThreadMessage(ThreadID, WM_USER_OpenDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-            hr = WaitForResponse(&req);
-        else
-            ERR("Failed to post thread message: %lu\n", GetLastError());
-    }
-
-    if(FAILED(hr))
-    {
-        if(self->NotifyEvent != NULL)
-            CloseHandle(self->NotifyEvent);
-        self->NotifyEvent = NULL;
-        if(self->MsgEvent != NULL)
-            CloseHandle(self->MsgEvent);
-        self->MsgEvent = NULL;
-
-        free(self->devid);
-        self->devid = NULL;
-
-        ERR("Device init failed: 0x%08lx\n", hr);
-        return ALC_INVALID_VALUE;
-    }
-    else
-    {
-        ThreadRequest req = { self->MsgEvent, 0 };
-
-        hr = E_FAIL;
-        if(PostThreadMessage(ThreadID, WM_USER_ResetDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-            hr = WaitForResponse(&req);
-        else
-            ERR("Failed to post thread message: %lu\n", GetLastError());
-
-        if(FAILED(hr))
-        {
-            if(hr == E_OUTOFMEMORY)
-               return ALC_OUT_OF_MEMORY;
-            return ALC_INVALID_VALUE;
-        }
-    }
-
-    return ALC_NO_ERROR;
-}
-
-static HRESULT ALCmmdevCapture_openProxy(ALCmmdevCapture *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    void *ptr;
-    HRESULT hr;
-
-    hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        IMMDeviceEnumerator *Enumerator = ptr;
-        if(!self->devid)
-            hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eCapture, eMultimedia, &self->mmdev);
-        else
-            hr = IMMDeviceEnumerator_GetDevice(Enumerator, self->devid, &self->mmdev);
-        IMMDeviceEnumerator_Release(Enumerator);
-        Enumerator = NULL;
-    }
-    if(SUCCEEDED(hr))
-        hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        self->client = ptr;
-        if(alstr_empty(device->DeviceName))
-            get_device_name_and_guid(self->mmdev, &device->DeviceName, NULL);
-    }
-
-    if(FAILED(hr))
-    {
-        if(self->mmdev)
-            IMMDevice_Release(self->mmdev);
-        self->mmdev = NULL;
-    }
-
-    return hr;
-}
-
-
-static void ALCmmdevCapture_closeProxy(ALCmmdevCapture *self)
-{
-    if(self->client)
-        IAudioClient_Release(self->client);
-    self->client = NULL;
-
-    if(self->mmdev)
-        IMMDevice_Release(self->mmdev);
-    self->mmdev = NULL;
-}
-
-
-static HRESULT ALCmmdevCapture_resetProxy(ALCmmdevCapture *self)
-{
-    ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
-    WAVEFORMATEXTENSIBLE OutputType;
-    WAVEFORMATEX *wfx = NULL;
-    enum DevFmtType srcType;
-    REFERENCE_TIME buf_time;
-    UINT32 buffer_len;
-    void *ptr = NULL;
-    HRESULT hr;
-
-    if(self->client)
-        IAudioClient_Release(self->client);
-    self->client = NULL;
-
-    hr = IMMDevice_Activate(self->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
-    if(FAILED(hr))
-    {
-        ERR("Failed to reactivate audio client: 0x%08lx\n", hr);
-        return hr;
-    }
-    self->client = ptr;
-
-    buf_time = ScaleCeil(device->UpdateSize*device->NumUpdates, REFTIME_PER_SEC,
-                         device->Frequency);
-    // Make sure buffer is at least 100ms in size
-    buf_time = maxu64(buf_time, REFTIME_PER_SEC/10);
-    device->UpdateSize = (ALuint)ScaleCeil(buf_time, device->Frequency, REFTIME_PER_SEC) /
-                         device->NumUpdates;
-
-    OutputType.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
-    switch(device->FmtChans)
-    {
-        case DevFmtMono:
-            OutputType.Format.nChannels = 1;
-            OutputType.dwChannelMask = MONO;
-            break;
-        case DevFmtStereo:
-            OutputType.Format.nChannels = 2;
-            OutputType.dwChannelMask = STEREO;
-            break;
-        case DevFmtQuad:
-            OutputType.Format.nChannels = 4;
-            OutputType.dwChannelMask = QUAD;
-            break;
-        case DevFmtX51:
-            OutputType.Format.nChannels = 6;
-            OutputType.dwChannelMask = X5DOT1;
-            break;
-        case DevFmtX51Rear:
-            OutputType.Format.nChannels = 6;
-            OutputType.dwChannelMask = X5DOT1REAR;
-            break;
-        case DevFmtX61:
-            OutputType.Format.nChannels = 7;
-            OutputType.dwChannelMask = X6DOT1;
-            break;
-        case DevFmtX71:
-            OutputType.Format.nChannels = 8;
-            OutputType.dwChannelMask = X7DOT1;
-            break;
-
-        case DevFmtAmbi3D:
-            return E_FAIL;
-    }
-    switch(device->FmtType)
-    {
-        /* NOTE: Signedness doesn't matter, the converter will handle it. */
-        case DevFmtByte:
-        case DevFmtUByte:
-            OutputType.Format.wBitsPerSample = 8;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtShort:
-        case DevFmtUShort:
-            OutputType.Format.wBitsPerSample = 16;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtInt:
-        case DevFmtUInt:
-            OutputType.Format.wBitsPerSample = 32;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-            break;
-        case DevFmtFloat:
-            OutputType.Format.wBitsPerSample = 32;
-            OutputType.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-            break;
-    }
-    OutputType.Samples.wValidBitsPerSample = OutputType.Format.wBitsPerSample;
-    OutputType.Format.nSamplesPerSec = device->Frequency;
-
-    OutputType.Format.nBlockAlign = OutputType.Format.nChannels *
-                                    OutputType.Format.wBitsPerSample / 8;
-    OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec *
-                                        OutputType.Format.nBlockAlign;
-    OutputType.Format.cbSize = sizeof(OutputType) - sizeof(OutputType.Format);
-
-    hr = IAudioClient_IsFormatSupported(self->client,
-        AUDCLNT_SHAREMODE_SHARED, &OutputType.Format, &wfx
-    );
-    if(FAILED(hr))
-    {
-        ERR("Failed to check format support: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    DestroySampleConverter(&self->SampleConv);
-    DestroyChannelConverter(&self->ChannelConv);
-
-    if(wfx != NULL)
-    {
-        if(!(wfx->nChannels == OutputType.Format.nChannels ||
-             (wfx->nChannels == 1 && OutputType.Format.nChannels == 2) ||
-             (wfx->nChannels == 2 && OutputType.Format.nChannels == 1)))
-        {
-            ERR("Failed to get matching format, wanted: %s %s %uhz, got: %d channel%s %d-bit %luhz\n",
-                DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType),
-                device->Frequency, wfx->nChannels, (wfx->nChannels==1)?"":"s", wfx->wBitsPerSample,
-                wfx->nSamplesPerSec);
-            CoTaskMemFree(wfx);
-            return E_FAIL;
-        }
-
-        if(!MakeExtensible(&OutputType, wfx))
-        {
-            CoTaskMemFree(wfx);
-            return E_FAIL;
-        }
-        CoTaskMemFree(wfx);
-        wfx = NULL;
-    }
-
-    if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))
-    {
-        if(OutputType.Format.wBitsPerSample == 8)
-            srcType = DevFmtUByte;
-        else if(OutputType.Format.wBitsPerSample == 16)
-            srcType = DevFmtShort;
-        else if(OutputType.Format.wBitsPerSample == 32)
-            srcType = DevFmtInt;
-        else
-        {
-            ERR("Unhandled integer bit depth: %d\n", OutputType.Format.wBitsPerSample);
-            return E_FAIL;
-        }
-    }
-    else if(IsEqualGUID(&OutputType.SubFormat, &KSDATAFORMAT_SUBTYPE_IEEE_FLOAT))
-    {
-        if(OutputType.Format.wBitsPerSample == 32)
-            srcType = DevFmtFloat;
-        else
-        {
-            ERR("Unhandled float bit depth: %d\n", OutputType.Format.wBitsPerSample);
-            return E_FAIL;
-        }
-    }
-    else
-    {
-        ERR("Unhandled format sub-type\n");
-        return E_FAIL;
-    }
-
-    if(device->FmtChans == DevFmtMono && OutputType.Format.nChannels == 2)
-    {
-        self->ChannelConv = CreateChannelConverter(srcType, DevFmtStereo,
-                                                   device->FmtChans);
-        if(!self->ChannelConv)
-        {
-            ERR("Failed to create %s stereo-to-mono converter\n", DevFmtTypeString(srcType));
-            return E_FAIL;
-        }
-        TRACE("Created %s stereo-to-mono converter\n", DevFmtTypeString(srcType));
-        /* The channel converter always outputs float, so change the input type
-         * for the resampler/type-converter.
-         */
-        srcType = DevFmtFloat;
-    }
-    else if(device->FmtChans == DevFmtStereo && OutputType.Format.nChannels == 1)
-    {
-        self->ChannelConv = CreateChannelConverter(srcType, DevFmtMono,
-                                                   device->FmtChans);
-        if(!self->ChannelConv)
-        {
-            ERR("Failed to create %s mono-to-stereo converter\n", DevFmtTypeString(srcType));
-            return E_FAIL;
-        }
-        TRACE("Created %s mono-to-stereo converter\n", DevFmtTypeString(srcType));
-        srcType = DevFmtFloat;
-    }
-
-    if(device->Frequency != OutputType.Format.nSamplesPerSec || device->FmtType != srcType)
-    {
-        self->SampleConv = CreateSampleConverter(
-            srcType, device->FmtType, ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder),
-            OutputType.Format.nSamplesPerSec, device->Frequency
-        );
-        if(!self->SampleConv)
-        {
-            ERR("Failed to create converter for %s format, dst: %s %uhz, src: %s %luhz\n",
-                DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType),
-                device->Frequency, DevFmtTypeString(srcType), OutputType.Format.nSamplesPerSec);
-            return E_FAIL;
-        }
-        TRACE("Created converter for %s format, dst: %s %uhz, src: %s %luhz\n",
-              DevFmtChannelsString(device->FmtChans), DevFmtTypeString(device->FmtType),
-              device->Frequency, DevFmtTypeString(srcType), OutputType.Format.nSamplesPerSec);
-    }
-
-    hr = IAudioClient_Initialize(self->client,
-        AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
-        buf_time, 0, &OutputType.Format, NULL
-    );
-    if(FAILED(hr))
-    {
-        ERR("Failed to initialize audio client: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    hr = IAudioClient_GetBufferSize(self->client, &buffer_len);
-    if(FAILED(hr))
-    {
-        ERR("Failed to get buffer size: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    buffer_len = maxu(device->UpdateSize*device->NumUpdates, buffer_len);
-    ll_ringbuffer_free(self->Ring);
-    self->Ring = ll_ringbuffer_create(buffer_len,
-        FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder),
-        false
-    );
-    if(!self->Ring)
-    {
-        ERR("Failed to allocate capture ring buffer\n");
-        return E_OUTOFMEMORY;
-    }
-
-    hr = IAudioClient_SetEventHandle(self->client, self->NotifyEvent);
-    if(FAILED(hr))
-    {
-        ERR("Failed to set event handle: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    return hr;
-}
-
-
-static ALCboolean ALCmmdevCapture_start(ALCmmdevCapture *self)
-{
-    ThreadRequest req = { self->MsgEvent, 0 };
-    HRESULT hr = E_FAIL;
-
-    if(PostThreadMessage(ThreadID, WM_USER_StartDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-        hr = WaitForResponse(&req);
-
-    return SUCCEEDED(hr) ? ALC_TRUE : ALC_FALSE;
-}
-
-static HRESULT ALCmmdevCapture_startProxy(ALCmmdevCapture *self)
-{
-    HRESULT hr;
-    void *ptr;
-
-    ResetEvent(self->NotifyEvent);
-    hr = IAudioClient_Start(self->client);
-    if(FAILED(hr))
-    {
-        ERR("Failed to start audio client: 0x%08lx\n", hr);
-        return hr;
-    }
-
-    hr = IAudioClient_GetService(self->client, &IID_IAudioCaptureClient, &ptr);
-    if(SUCCEEDED(hr))
-    {
-        self->capture = ptr;
-        ATOMIC_STORE(&self->killNow, 0, almemory_order_release);
-        if(althrd_create(&self->thread, ALCmmdevCapture_recordProc, self) != althrd_success)
-        {
-            ERR("Failed to start thread\n");
-            IAudioCaptureClient_Release(self->capture);
-            self->capture = NULL;
-            hr = E_FAIL;
-        }
-    }
-
-    if(FAILED(hr))
-    {
-        IAudioClient_Stop(self->client);
-        IAudioClient_Reset(self->client);
-    }
-
-    return hr;
-}
-
-
-static void ALCmmdevCapture_stop(ALCmmdevCapture *self)
-{
-    ThreadRequest req = { self->MsgEvent, 0 };
-    if(PostThreadMessage(ThreadID, WM_USER_StopDevice, (WPARAM)&req, (LPARAM)STATIC_CAST(ALCmmdevProxy, self)))
-        (void)WaitForResponse(&req);
-}
-
-static void ALCmmdevCapture_stopProxy(ALCmmdevCapture *self)
-{
-    int res;
-
-    if(!self->capture)
-        return;
-
-    ATOMIC_STORE_SEQ(&self->killNow, 1);
-    althrd_join(self->thread, &res);
-
-    IAudioCaptureClient_Release(self->capture);
-    self->capture = NULL;
-    IAudioClient_Stop(self->client);
-    IAudioClient_Reset(self->client);
-}
-
-
-ALuint ALCmmdevCapture_availableSamples(ALCmmdevCapture *self)
-{
-    return (ALuint)ll_ringbuffer_read_space(self->Ring);
-}
-
-ALCenum ALCmmdevCapture_captureSamples(ALCmmdevCapture *self, ALCvoid *buffer, ALCuint samples)
-{
-    if(ALCmmdevCapture_availableSamples(self) < samples)
-        return ALC_INVALID_VALUE;
-    ll_ringbuffer_read(self->Ring, buffer, samples);
-    return ALC_NO_ERROR;
-}
-
-
-static inline void AppendAllDevicesList2(const DevMap *entry)
-{ AppendAllDevicesList(alstr_get_cstr(entry->name)); }
-static inline void AppendCaptureDeviceList2(const DevMap *entry)
-{ AppendCaptureDeviceList(alstr_get_cstr(entry->name)); }
-
-typedef struct ALCmmdevBackendFactory {
-    DERIVE_FROM_TYPE(ALCbackendFactory);
-} ALCmmdevBackendFactory;
-#define ALCMMDEVBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCmmdevBackendFactory, ALCbackendFactory) } }
-
-static ALCboolean ALCmmdevBackendFactory_init(ALCmmdevBackendFactory *self);
-static void ALCmmdevBackendFactory_deinit(ALCmmdevBackendFactory *self);
-static ALCboolean ALCmmdevBackendFactory_querySupport(ALCmmdevBackendFactory *self, ALCbackend_Type type);
-static void ALCmmdevBackendFactory_probe(ALCmmdevBackendFactory *self, enum DevProbe type);
-static ALCbackend* ALCmmdevBackendFactory_createBackend(ALCmmdevBackendFactory *self, ALCdevice *device, ALCbackend_Type type);
-
-DEFINE_ALCBACKENDFACTORY_VTABLE(ALCmmdevBackendFactory);
-
-
-static BOOL MMDevApiLoad(void)
-{
-    static HRESULT InitResult;
-    if(!ThreadHdl)
-    {
-        ThreadRequest req;
-        InitResult = E_FAIL;
-
-        req.FinishedEvt = CreateEventW(NULL, FALSE, FALSE, NULL);
-        if(req.FinishedEvt == NULL)
-            ERR("Failed to create event: %lu\n", GetLastError());
-        else
-        {
-            ThreadHdl = CreateThread(NULL, 0, ALCmmdevProxy_messageHandler, &req, 0, &ThreadID);
-            if(ThreadHdl != NULL)
-                InitResult = WaitForResponse(&req);
-            CloseHandle(req.FinishedEvt);
-        }
-    }
-    return SUCCEEDED(InitResult);
-}
-
-static ALCboolean ALCmmdevBackendFactory_init(ALCmmdevBackendFactory* UNUSED(self))
-{
-    VECTOR_INIT(PlaybackDevices);
-    VECTOR_INIT(CaptureDevices);
-
-    if(!MMDevApiLoad())
-        return ALC_FALSE;
-    return ALC_TRUE;
-}
-
-static void ALCmmdevBackendFactory_deinit(ALCmmdevBackendFactory* UNUSED(self))
-{
-    clear_devlist(&PlaybackDevices);
-    VECTOR_DEINIT(PlaybackDevices);
-
-    clear_devlist(&CaptureDevices);
-    VECTOR_DEINIT(CaptureDevices);
-
-    if(ThreadHdl)
-    {
-        TRACE("Sending WM_QUIT to Thread %04lx\n", ThreadID);
-        PostThreadMessage(ThreadID, WM_QUIT, 0, 0);
-        CloseHandle(ThreadHdl);
-        ThreadHdl = NULL;
-    }
-}
-
-static ALCboolean ALCmmdevBackendFactory_querySupport(ALCmmdevBackendFactory* UNUSED(self), ALCbackend_Type type)
-{
-    /* TODO: Disable capture with mmdevapi for now, since it doesn't do any
-     * rechanneling or resampling; if the device is configured for 48000hz
-     * stereo input, for example, and the app asks for 22050hz mono,
-     * initialization will fail.
-     */
-    if(type == ALCbackend_Playback || type == ALCbackend_Capture)
-        return ALC_TRUE;
-    return ALC_FALSE;
-}
-
-static void ALCmmdevBackendFactory_probe(ALCmmdevBackendFactory* UNUSED(self), enum DevProbe type)
-{
-    ThreadRequest req = { NULL, 0 };
-
-    req.FinishedEvt = CreateEventW(NULL, FALSE, FALSE, NULL);
-    if(req.FinishedEvt == NULL)
-        ERR("Failed to create event: %lu\n", GetLastError());
-    else
-    {
-        HRESULT hr = E_FAIL;
-        if(PostThreadMessage(ThreadID, WM_USER_Enumerate, (WPARAM)&req, type))
-            hr = WaitForResponse(&req);
-        if(SUCCEEDED(hr)) switch(type)
-        {
-        case ALL_DEVICE_PROBE:
-            VECTOR_FOR_EACH(const DevMap, PlaybackDevices, AppendAllDevicesList2);
-            break;
-
-        case CAPTURE_DEVICE_PROBE:
-            VECTOR_FOR_EACH(const DevMap, CaptureDevices, AppendCaptureDeviceList2);
-            break;
-        }
-        CloseHandle(req.FinishedEvt);
-        req.FinishedEvt = NULL;
-    }
-}
-
-static ALCbackend* ALCmmdevBackendFactory_createBackend(ALCmmdevBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
-{
-    if(type == ALCbackend_Playback)
-    {
-        ALCmmdevPlayback *backend;
-        NEW_OBJ(backend, ALCmmdevPlayback)(device);
-        if(!backend) return NULL;
-        return STATIC_CAST(ALCbackend, backend);
-    }
-    if(type == ALCbackend_Capture)
-    {
-        ALCmmdevCapture *backend;
-        NEW_OBJ(backend, ALCmmdevCapture)(device);
-        if(!backend) return NULL;
-        return STATIC_CAST(ALCbackend, backend);
-    }
-
-    return NULL;
-}
-
-
-ALCbackendFactory *ALCmmdevBackendFactory_getFactory(void)
-{
-    static ALCmmdevBackendFactory factory = ALCMMDEVBACKENDFACTORY_INITIALIZER;
-    return STATIC_CAST(ALCbackendFactory, &factory);
-}